Расчёт режимов резания. Курсовое и дипломное проектирование по технологии машиностроения. Учебное пособие
.pdfɈɤɨɧɱɚɧɢɟ ɬɚɛɥɢɰɵ 8.11
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ɏɚɪɚɤɬɟɪɢɫɬɢɤɚ |
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Ɂɧɚɱɟɧɢɹ ɩɟɪɟɦɟɧɧɵɯ |
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ȼɢɞ ɲɥɢɮɨɜɚɧɢɹ |
Ɇɚɬɟɪɢɚɥ ɞɟɬɚɥɢ |
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ɤɪɭɝɚ |
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Ʉɑ16ɋ2Ȼ |
0,48 |
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ɉɥɨɫɤɨɟ ɬɨɪɰɨɦ |
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Ʉɑ16ɋɆ1Ȼ |
0,28 |
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0,4 |
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0,4 |
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0,9 |
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ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ ɬɢɩɚ |
ɑɭɝɭɧ |
Ʉɑ24ɋɆ2 |
0,36 |
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«Ⱦɢɫɤɭɫ» |
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Ʉɑ24ɋɆ2Ȼ |
0,21 |
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ɗ36ɋɆ2Ʉ |
2,01 |
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ɤɨɥɶɰɟɜɨɣ |
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ɇɟɡɚɤɚɥɟɧɧɚɹ |
ɗ36Ɇ3Ʉ |
1,31 |
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0,5 |
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0,5 |
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0,6 |
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ɫɬɚɥɶ |
ɫɟɝɦɟɧɬɧɵɣ |
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ɗ24Ɇ1Ʉ |
1,81 |
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ɤɨɥɶɰɟɜɨɣ |
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ɗ36ɋɆ2Ʉ |
4,8 |
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ɤɨɥɶɰɟɜɨɣ |
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ɉɥɨɫɤɨɟ ɬɨɪɰɨɦ ɤɪɭɝɚ |
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ɗ34Ɇ3Ʉ |
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3,4 |
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0,3 |
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0,25 |
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0,3 |
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ɧɚ ɫɬɚɧɤɚɯ ɫ ɤɪɭɝɥɵɦ |
Ɂɚɤɚɥɟɧɧɚɹ ɫɬɚɥɶ |
ɫɟɝɦɟɧɬɧɵɣ |
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ɫɬɨɥɨɦ |
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ɗ24Ɇ3Ʉ |
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5,6 |
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ɫɟɝɦɟɧɬɧɵɣ |
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Ʉɑ36ɋɆ2Ʉ |
2,60 |
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ɫɟɝɦɟɧɬɧɵɣ |
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ɑɭɝɭɧ |
Ʉɑ36ɋɆ1Ʉ |
4,03 |
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0,4 |
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0,4 |
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0,45 |
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ɤɨɥɶɰɟɜɨɣ |
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Ʉɑ24ɋɆ2 |
3,92 |
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ɤɨɥɶɰɟɜɨɣ |
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Ɉɯɥɚɠɞɟɧɢɟ ɩɪɢ ɲɥɢɮɨɜɚɧɢɢ
ȼ ɫɜɹɡɢ ɫ ɜɵɞɟɥɟɧɢɟɦ ɛɨɥɶɲɨɝɨ ɤɨɥɢɱɟɫɬɜɚ ɬɟɩɥɨɬɵ ɢ ɨɛɪɚɡɨɜɚɧɢɟɦ ɚɛ- ɪɚɡɢɜɧɨ-ɦɟɬɚɥɥɢɱɟɫɤɨɣ ɩɵɥɢ, ɲɥɢɮɨɜɚɧɢɟ ɦɟɬɚɥɥɨɜ ɜɨ ɜɫɟɯ ɫɥɭɱɚɹɯ, ɝɞɟ ɷɬɨ ɬɟɯɧɢɱɟɫɤɢ ɜɨɡɦɨɠɧɨ, ɨɛɹɡɚɬɟɥɶɧɨ ɫɥɟɞɭɟɬ ɜɟɫɬɢ ɫ ɨɛɢɥɶɧɵɦ ɨɯɥɚɠɞɟɧɢɟɦ, ɩɪɢɦɟɧɹɹ ɜ ɤɚɱɟɫɬɜɟ ɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ:
1)1%-ɧɵɣ ɜɨɞɧɵɣ ɪɚɫɬɜɨɪ ɤɚɥɶɰɢɧɢɪɨɜɚɧɧɨɣ ɫɨɞɵ ɢ 0,15-ɧɵɣ ɧɢɬɪɢɬɚ
ɧɚɬɪɢɹ;
2)2%-ɧɵɣ ɜɨɞɧɵɣ ɪɚɫɬɜɨɪ ɦɵɥɶɧɨɝɨ ɩɨɪɨɲɤɚ;
3)2–3%-ɧɵɣ ɜɨɞɧɵɣ ɪɚɫɬɜɨɪ ɤɚɥɶɰɢɧɢɪɨɜɚɧɧɨɣ ɫɨɞɵ;
4)5–7%-ɧɵɣ ɜɨɞɧɵɣ ɪɚɫɬɜɨɪ ɷɦɭɥɶɫɨɥɚ;
5)3,5%-ɧɵɣ ɜɨɞɧɵɣ ɪɚɫɬɜɨɪ ɧɟɣɬɪɚɥɶɧɨɝɨ ɷɦɭɥɶɫɨɥɚ ɧɚ ɨɫɧɨɜɟ ɨɥɟɢɧɨɜɨɣ ɤɢɫɥɨɬɵ.
ɉɪɢ ɲɥɢɮɨɜɚɧɢɢ ɚɥɸɦɢɧɢɹ ɩɪɢɦɟɧɹɸɬɫɹ ɤɟɪɨɫɢɧɨɜɵɟ ɷɦɭɥɶɫɢɢ, ɢɡɝɨɬɨɜɥɟɧɧɵɟ ɢɡ ɩɚɫɬ, ɫɨɫɬɨɹɳɢɯ ɢɡ 50 % ɷɦɭɥɶɫɨɥɚ ɢ 50 % ɤɟɪɨɫɢɧɚ. ɗɦɭɥɶɫɢɹ ɫɨɫɬɨɢɬ ɢɡ 10 % ɩɚɫɬɵ ɢ 90 % ɜɨɞɵ; ɷɦɭɥɶɫɢɹ ɞɨɥɠɧɚ ɫɨɞɟɪɠɚɬɶ ɦɢɧɢɦɚɥɶɧɨɟ ɤɨɥɢɱɟɫɬɜɨ ɤɢɫɥɨɬ.
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ɉɪɢ ɲɥɢɮɨɜɚɧɢɢ ɪɟɡɶɛɵ ɜ ɤɚɱɟɫɬɜɟ ɨɯɥɚɠɞɚɸɳɟɣ ɠɢɞɤɨɫɬɢ ɩɪɢɦɟɧɹɸɬ ɥɟɝɤɢɟ ɦɢɧɟɪɚɥɶɧɵɟ ɦɚɫɥɚ.
ɉɪɢ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɩɪɢɦɟɧɹɸɬ ɱɢɫɬɵɣ ɤɟɪɨɫɢɧ ɢɥɢ ɤɟɪɨɫɢɧ ɜ ɫɦɟɫɢ ɫ ɥɟɝɤɢɦɢ ɦɢɧɟɪɚɥɶɧɵɦɢ ɦɚɫɥɚɦɢ.
8.5. Ɉɩɪɟɞɟɥɟɧɢɟ ɨɫɧɨɜɧɨɝɨ ɬɟɯɧɨɥɨɝɢɱɟɫɤɨɝɨ ɜɪɟɦɟɧɢ
Ɉɫɧɨɜɧɨɟ ɬɟɯɧɨɥɨɝɢɱɟɫɤɨɟ ɜɪɟɦɹ T0 (ɦɢɧ) ɧɚ ɲɥɢɮɨɜɚɥɶɧɵɟ ɨɩɟɪɚɰɢɢ ɨɩɪɟɞɟɥɹɟɬɫɹ ɩɨ ɮɨɪɦɭɥɚɦ, ɩɪɢɜɟɞɟɧɧɵɦ ɜ ɬɚɛɥɢɰɟ 8.12. ɍɫɥɨɜɧɵɟ ɨɛɨɡɧɚɱɟɧɢɹ ɫɢɦɜɨɥɨɜ ɜ ɮɨɪɦɭɥɚɯ ɞɥɹ ɪɚɫɱɟɬɚ T0 ɬɚɤɠɟ ɫɞɟɪɠɚɬɫɹ ɜ ɬɚɛɥɢɰɟ 8.12.
Ɍɚɛɥɢɰɚ 8.12 Ɏɨɪɦɭɥɵ ɞɥɹ ɩɨɞɫɱɟɬɚ ɨɫɧɨɜɧɨɝɨ ɜɪɟɦɟɧɢ ɩɪɢ ɲɥɢɮɨɜɚɧɢɢ
ȼɢɞ ɲɥɢɮɨɜɚɧɢɹ
ɧɚɪɭɠɧɨɟɄɪɭɝɥɨɟ ɩɨɞɚɱɟɣɩɪɨɞɨɥɶɧɨɣ |
ɞɟɬɚɥɢ |
ɉɨɩɟɪɟɱɧɚɹ |
ɩɨɞɚɱɚ |
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ɧɚ ɤɚɠɞɵɣ |
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ɯɨɞ ɫɬɨɥɚ |
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ɉɨɩɟɪɟɱɧɚɹ |
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ɩɨɞɚɱɚ |
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ɧɚ ɞɜɨɣɧɨɣ |
ɫ |
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ɯɨɞ ɫɬɨɥɚ |
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Ʉɪɭɝɥɨɟ ɧɚɪɭɠɧɨɟ ɜɪɟɡɧɨɟ
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ɇɚ ɩɪɨɯɨɞ |
Ȼɟɫɰɟɧɬɪɨɜɨɟ |
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ȼɪɟɡɚɧɢɟɦ |
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ȼɧɭɬɪɟɧɧɟɟ
Ɏɨɪɦɭɥɚ ɞɥɹ T0 (ɦɢɧ) |
ɍɫɥɨɜɧɵɟ ɨɛɨɡɧɚɱɟɧɢɹ |
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L h |
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ɉɪɢ ɲɥɢɮɨɜɚɧɢɢ ɧɚ ɩɪɨɯɨɞ |
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L l 1 m1 2 Bɤ |
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T |
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2 L h |
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L – ɞɥɢɧɚ ɩɪɨɞɨɥɶɧɨɝɨ ɯɨɞɚ ɫɬɨɥɚ, ɦɦ; |
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m1 – ɩɟɪɟɛɟɝ ɤɪɭɝɚ ɡɚ ɩɪɟɞɟɥɵ |
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sɞ Bɤ t |
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ɲɥɢɮɭɟɦɨɣ ɱɚɫɬɢ ɩɨɜɟɪɯɧɨɫɬɢ, |
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ɪɚɜɧɵɣ 0,3–0,5 ɲɢɪɢɧɵ ɤɪɭɝɚ Bɤ, ɦɦ; |
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k – ɤɨɷɮɮɢɰɢɟɧɬ (ɬɚɛɥɢɰɚ 8.13) |
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nɢ t |
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T0 |
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l q1 Bɤ |
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q1 – ɱɢɫɥɨ ɞɟɬɚɥɟɣ ɜ ɩɚɪɬɢɢ, |
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ɲɥɢɮɭɟɦɵɯ ɧɟɩɪɟɪɵɜɧɵɦ ɩɨɬɨɤɨɦ |
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sɦ – ɬɟɨɪɟɬɢɱɟɫɤɚɹ ɩɪɨɞɨɥɶɧɚɹ |
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sɦ |
S Dɜɤ nɜɤ sinD |
ɦɢɧɭɬɧɚɹ ɩɨɞɚɱɚ, ɦɦ/ɦɢɧ; |
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h |
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D – ɭɝɨɥ ɩɨɜɨɪɨɬɚ ɜɟɞɭɳɟɝɨ ɤɪɭɝɚ, |
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ɝɪɚɞ.; |
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nɜɤ – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɜɟɞɭɳɟɝɨ ɤ |
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Dɜɤ nɜɤ |
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ɪɭɝɚ, ɨɛ/ɦɢɧ; |
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nɢ |
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Dɜɤ – ɞɢɚɦɟɬɪ ɜɟɞɭɳɟɝɨ ɤɪɭɝɚ, ɦɦ; |
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i – ɱɢɫɥɨ ɩɪɨɯɨɞɨɜ |
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T |
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sɞ Bɤ t |
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ɋɦ. ɤɪɭɝɥɨɟ ɧɚɪɭɠɧɨɟ (ɫɬɪɨɤɢ 1–3) |
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L l 1 m1 2 Bɤ |
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82
Ɉɤɨɧɱɚɧɢɟ ɬɚɛɥɢɰɵ 8.12
ȼɢɞ ɲɥɢɮɨɜɚɧɢɹ |
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Ɏɨɪɦɭɥɚ ɞɥɹ T0 (ɦɢɧ) |
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ɍɫɥɨɜɧɵɟ ɨɛɨɡɧɚɱɟɧɢɹ |
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ɉɥɨɫɤɨɟ ɩɟɪɢɮɟɪɢɟɣ ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ ɩɪɹɦɨɭɝɨɥɶɧɵɦ ɫɬɨɥɨɦ |
ɉɨɞɚɱɚ |
T |
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L Lɫ h |
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L – ɞɥɢɧɚ ɯɨɞɚ ɤɪɭɝɚ ɜ ɧɚɩɪɚɜɥɟɧɢɢ |
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ɧɚ ɤɚɠɞɵɣ |
0 |
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ɩɨɩɟɪɟɱɧɨɣ ɩɨɞɚɱɢ ɦɦ |
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1000 Xɢ sɞ Bɤ t q |
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Lɫ – ɞɥɢɧɚɩɪɨɞɨɥɶɧɨɝɨɯɨɞɚɫɬɨɥɚ, ɦɦ; |
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ɯɨɞ ɫɬɨɥɚ |
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L l Bɤ 5 ; Lɫ |
lɫ 10 15 |
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2 L Lɫ h |
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ɉɨɞɚɱɚ |
T0 |
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lɫ – ɞɥɢɧɚ ɫɬɨɥɚ, ɮɚɤɬɢɱɟɫɤɢ ɡɚɧɹɬɚɹ |
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1000 Xɢ sɞ Bɤ t q |
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ɧɚ ɞɜɨɣɧɨɣ |
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ɲɥɢɮɭɟɦɵɦɢ ɞɟɬɚɥɹɦɢ ɦɦ |
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ɯɨɞ ɫɬɨɥɚ |
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q – ɱɢɫɥɨ ɞɟɬɚɥɟɣ, ɨɞɧɨɜɪɟɦɟɧɧɨ |
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ɭɫɬɚɧɨɜɥɟɧɧɵɯ ɧɚ ɫɬɨɥɟ |
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T |
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L h |
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L – ɞɥɢɧɚ ɯɨɞɚ ɩɨɥɡɭɧɚ |
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ɉɥɨɫɤɨɟ ɩɟɪɢɮɟɪɢɟɣ |
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0 |
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nɢ |
sɞ Bɤ |
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q |
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ɲɥɢɮɨɜɚɥɶɧɨɝɨ ɤɪɭɝɚ, ɦɦ; |
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ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ |
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1000 Xɢ |
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L bɢ Bɤ 10 |
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ɫ ɤɪɭɝɥɵɦ ɫɬɨɥɨɦ |
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nɢ |
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dɫɪ – ɫɪɟɞɧɢɣ ɞɢɚɦɟɬɪ ɪɚɫɩɨɥɨɠɟɧɢɹ |
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S dɫɪ |
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ɞɟɬɚɥɟɣ ɧɚ ɫɬɨɥɟ, ɦɦ |
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ɉɥɨɫɤɨɟ ɬɨɪɰɨɦ |
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Lɫ h |
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Lɫ – ɞɥɢɧɚ ɩɪɨɞɨɥɶɧɨɝɨ ɯɨɞɚ ɫɬɨɥɚ, |
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ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ |
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ɦɦ; |
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5 |
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ɫ ɩɪɹɦɨɭɝɨɥɶɧɵɦ |
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0 |
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1000 Xɢ t |
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q |
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Lɫ l 0,5 Dɤ |
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Dɤ |
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bɢ |
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ɫɬɨɥɨɦ |
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h |
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1000 Xɢ |
dɫɪ – ɫɪɟɞɧɢɣ ɞɢɚɦɟɬɪ ɪɚɫɩɨɥɨɠɟɧɢɹ |
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ɉɥɨɫɤɨɟ ɬɨɪɰɨɦ |
T0 |
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; nɢ |
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ɞɟɬɚɥɟɣ ɧɚ ɫɬɨɥɟ |
ɦɦ |
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ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ |
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nɢ t |
q |
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S dɫɪ |
q – ɱɢɫɥɨ ɞɟɬɚɥɟɣ, ɨɞɧɨɜɪɟɦɟɧɧɨ |
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ɫ ɤɪɭɝɥɵɦ ɫɬɨɥɨɦ |
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ɭɫɬɚɧɨɜɥɟɧɧɵɯ ɧɚ ɫɬɨɥɟ |
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L h z k |
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l1 – ɩɟɪɟɛɟɝ ɫɬɨɥɚ (ɦɦ), |
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Ɇɧɨɝɨɲɩɨɧɨɱɧɵɯ |
T0 |
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L |
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l l |
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ɭɫɬɚɧɚɜɥɢɜɚɟɦɵɣ, ɢɫɯɨɞɹ |
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1000 Xɫɬ t |
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1 |
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ɢɡ ɜɪɟɦɟɧɢ ɧɚ ɞɟɥɟɧɢɟ; |
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ɜɚɥɢɤɨɜ |
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z – ɱɢɫɥɨ ɲɩɨɧɨɤ |
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Ɋɟɡɶɛɵ |
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nɪ S dɢ |
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nɪ – ɱɢɫɥɨ ɨɛɨɪɨɬɨɜ ɢɡɞɟɥɢɣ ɡɚ ɜɪɟɦɹ |
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T0 |
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ɦɧɨɝɨɧɢɬɨɱɧɵɦ |
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1000 Xɢ |
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ɧɚɪɟɡɚɧɢɹ ɪɟɡɶɛɵ. |
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ɤɪɭɝɨɦ |
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l1 – ɩɟɪɟɛɟɝ ɧɚ ɜɯɨɞ ɢ ɜɵɯɨɞ ɤɪɭɝɚ, |
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L |
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§ h |
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ɪɚɜɧɵɣ 1–2 ɧɢɬɤɚɦ ɧɚ ɫɬɨɪɨɧɭ, ɦɦ; |
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Ɋɟɡɶɛɵ ɨɞɧɨɧɢɬɨɱɧɵɦ |
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T0 |
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¨ |
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m¸ |
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tɪ – ɲɚɝ ɪɟɡɶɛɵ, ɦɦ; |
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nɢ tɪ |
© t |
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¹ |
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m – |
ɱɢɫɥɨ ɩɪɨɯɨɞɨɜ ɩɪɨɢɡɜɨɞɢɦɵɯ |
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, |
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ɤɪɭɝɨɦ |
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ɛɟɡ ɩɨɩɟɪɟɱɧɨɣ ɩɨɞɚɱɢ; |
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L |
l l1 |
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ɩɪɢ ɱɢɫɬɨɜɨɦ ɲɥɢɮɨɜɚɧɢɢ m = 1–2; |
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ɩɪɢ ɱɟɪɧɨɜɨɦ ɲɥɢɮɨɜɚɧɢɢ m = 0 |
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Ɉɛɳɢɟ ɭɫɥɨɜɧɵɟ ɨɛɨɡɧɚɱɟɧɢɹ: l – ɞɥɢɧɚ ɩɨɜɟɪɯɧɨɫɬɢ ɨɛɪɚɛɨɬɤɢ ɜ ɧɚɩɪɚɜɥɟɧɢɢ ɩɨɞɚɱɢ, ɦɦ; h – ɩɪɢɩɭɫɤ, ɦɦ; Xɫɬ – ɫɤɨɪɨɫɬɶ ɫɬɨɥɚ, ɦ/ɦɢɧ; sɞ – ɩɪɨɞɨɥɶɧɚɹ ɩɨɞɚɱɚ ɜ ɞɨɥɹɯ ɲɢɪɢɧɵ ɤɪɭɝɚ; nɢ – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɢɡɞɟɥɢɹ (ɞɟɬɚɥɢ), ɨɛ/ɦɢɧ; Xɢ – ɫɤɨɪɨɫɬɶ ɢɡɞɟɥɢɹ, ɦ/ɦɢɧ; dɢ – ɞɢɚɦɟɬɪ ɢɡɞɟɥɢɹ, ɦɦ; bɢ – ɲɢɪɢɧɚ ɢɡɞɟɥɢɹ, ɦɦ; Bɤ – ɲɢɪɢɧɚ ɤɪɭɝɚ, ɦɦ; Dɤ – ɞɢɚɦɟɬɪ ɲɥɢɮɨɜɚɥɶɧɨɝɨ ɤɪɭɝɚ, ɦɦ; q – ɱɢɫɥɨ ɞɟɬɚɥɟɣ, ɨɞɧɨɜɪɟɦɟɧɧɨ ɭɫɬɚɧɨɜɥɟɧɧɵɯ ɧɚ ɫɬɨɥɟ; k – ɩɨɩɪɚɜɨɱɧɵɣ ɤɨɷɮɮɢɰɢɟɧɬ, ɭɱɢɬɵɜɚɸɳɢɣ ɩɨɬɟɪɢ ɜɪɟɦɟɧɢ ɢɡ-ɡɚ ɢɡɧɨɫɚ ɲɥɢɮɨɜɚɥɶɧɵɯ ɤɪɭɝɨɜ, ɧɟɞɨɫɬɚɬɨɱɧɨɣ ɠɟɫɬɤɨɫɬɢ ɫɢɫɬɟɦɵ ɢ ɞɪ.; ɡɧɚɱɟɧɢɹ k ɞɚɧɵ ɜ ɬɚɛɥɢɰɟ 8.13.
83
Ɍɚɛɥɢɰɚ 8.13 Ɂɧɚɱɟɧɢɹ ɤɨɷɮɮɢɰɢɟɧɬɚ k ɩɪɢ ɪɚɫɱɟɬɟ ɜɪɟɦɟɧɢ ɲɥɢɮɨɜɚɧɢɹ
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Ɂɧɚɱɟɧɢɟ k |
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ȼɢɞ ɲɥɢɮɨɜɚɧɢɹ |
ɑɟɪɧɨɜɨɟ |
ɑɢɫɬɨɜɨɟ |
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ɲɥɢɮɨɜɚɧɢɟ |
ɲɥɢɮɨɜɚɧɢɟ |
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Ʉɪɭɝɥɨɟ ɧɚɪɭɠɧɨɟ ɧɚ ɩɪɨɯɨɞ |
1,2–1,4 |
1,25–1,7 |
Ʉɪɭɝɥɨɟ ɜɪɟɡɚɧɢɟɦ |
1,2–1,3 |
1,2–1,3 |
Ȼɟɫɰɟɧɬɪɨɜɨɟ ɧɚ ɩɪɨɯɨɞ |
1,05–1,2 |
1,05–1,2 |
Ȼɟɫɰɟɧɬɪɨɜɨɟ ɜɪɟɡɚɧɢɟɦ |
1,05–1,1 |
1,1–1,2 |
ȼɧɭɬɪɟɧɧɟɟ |
1,2–1,5 |
1,3–1,8 |
ɉɥɨɫɤɨɟ, ɩɟɪɢɮɟɪɢɟɣ ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ ɫ ɩɪɹɦɨɭɝɨɥɶɧɵɦ ɫɬɨɥɨɦ |
1,15–1,35 |
1,25–1,5 |
ɉɥɨɫɤɨɟ, ɩɟɪɢɮɟɪɢɟɣ ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ ɫ ɤɪɭɝɥɵɦ ɫɬɨɥɨɦ |
1,2–2,0 |
1,2–1,5 |
ɉɥɨɫɤɨɟ, ɬɨɪɰɨɦ ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ ɫ ɩɪɹɦɨɭɝɨɥɶɧɵɦ ɫɬɨɥɨɦ |
1,2–2,0 |
1,2–1,5 |
ɉɥɨɫɤɨɟ, ɬɨɪɰɨɦ ɤɪɭɝɚ ɧɚ ɫɬɚɧɤɚɯ ɫ ɤɪɭɝɥɵɦ ɫɬɨɥɨɦ |
1,2–2,0 |
1,2–1,5 |
Ɇɧɨɝɨɲɩɨɧɨɱɧɵɯ ɜɚɥɢɤɨɜ |
1,15–1,5 |
1,15–1,5 |
Ɍɚɛɥɢɰɚ 8.14
Ʉɨɥɢɱɟɫɬɜɨ ɥɸɧɟɬɨɜ ɩɪɢ ɤɪɭɝɥɨɦ ɲɥɢɮɨɜɚɧɢɢ
Ⱦɢɚɦɟɬɪ |
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Ⱦɥɢɧɚ ɞɟɬɚɥɢ, ɦɦ |
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ɞɟɬɚɥɢ, |
150 |
300 |
450 |
600 |
750 |
900 |
1050 |
1200 |
1500 |
1800 |
2100 |
ɦɦ |
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Ʉɨɥɢɱɟɫɬɜɨ ɥɸɧɟɬɨɜ |
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Ⱦɨ 20 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
– |
– |
– |
– |
20–25 |
– |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
– |
– |
– |
26–35 |
– |
1 |
2 |
2 |
3 |
4 |
4 |
5 |
7 |
– |
– |
36–50 |
– |
1 |
1 |
2 |
2 |
3 |
4 |
4 |
5 |
7 |
– |
51–60 |
– |
– |
1 |
1 |
2 |
2 |
3 |
3 |
4 |
5 |
6 |
61–75 |
– |
– |
1 |
1 |
2 |
2 |
2 |
3 |
4 |
5 |
5 |
76–100 |
– |
– |
1 |
1 |
1 |
2 |
2 |
2 |
3 |
4 |
5 |
101–125 |
– |
– |
– |
1 |
1 |
1 |
2 |
2 |
3 |
3 |
4 |
126–150 |
– |
– |
– |
1 |
1 |
1 |
1 |
2 |
2 |
3 |
3 |
151–200 |
– |
– |
– |
– |
1 |
1 |
1 |
1 |
2 |
2 |
3 |
201–250 |
– |
– |
– |
– |
– |
1 |
1 |
1 |
1 |
2 |
2 |
251–300 |
– |
– |
– |
– |
– |
– |
1 |
1 |
1 |
1 |
2 |
84
9.ȾɈȼɈȾɄȺ ɉɈȼȿɊɏɇɈɋɌȿɃ ȾȿɌȺɅȿɃ
9.1.ɇɚɡɧɚɱɟɧɢɟ, ɜɢɞɵ ɞɨɜɨɞɤɢ ɢ ɨɛɥɚɫɬɢ ɟɟ ɩɪɢɦɟɧɟɧɢɹ
Ⱦɨɜɨɞɤɚ ɩɨɜɟɪɯɧɨɫɬɟɣ ɦɟɬɚɥɥɢɱɟɫɤɢɯ ɞɟɬɚɥɟɣ ɩɪɨɜɨɞɢɬɫɹ ɞɥɹ ɩɨɥɭɱɟɧɢɹ ɞɟɬɚɥɟɣ ɫ ɜɵɫɨɤɨɣ ɬɨɱɧɨɫɬɶɸ ɮɨɪɦɵ, ɪɚɡɦɟɪɨɜ, ɦɚɥɨɣ ɲɟɪɨɯɨɜɚɬɨɫɬɶɸ ɩɨɜɟɪɯɧɨɫɬɢ.
ɂɡɜɟɫɬɧɵ ɫɥɟɞɭɸɳɢɟ ɜɢɞɵ ɞɨɜɨɞɤɢ ɩɨɜɟɪɯɧɨɫɬɟɣ:
1)ɫ ɧɚɦɚɡɤɨɣ ɞɨɜɨɞɨɱɧɵɯ ɤɪɭɝɨɜ ɢ ɩɪɢɬɢɪɨɜ ɚɛɪɚɡɢɜɧɨɣ ɫɦɟɫɶɸ;
2)ɫ ɧɟɩɪɟɪɵɜɧɨɣ ɩɨɞɚɱɟɣ ɚɛɪɚɡɢɜɧɨɣ ɫɦɟɫɢ ɧɚ ɪɚɛɨɱɢɟ ɩɨɜɟɪɯɧɨɫɬɢ ɞɨɜɨɞɨɱɧɵɯ ɤɪɭɝɨɜ;
3)ɲɚɪɠɢɪɨɜɚɧɧɵɦɢ ɞɢɫɤɚɦɢ ɢɥɢ ɩɥɢɬɚɦɢ;
4)ɚɛɪɚɡɢɜɧɵɦɢ ɤɪɭɝɚɦɢ ɢɥɢ ɛɪɭɫɤɚɦɢ.
Ⱦɨɜɨɞɨɱɧɵɟ ɤɪɭɝɢ ɢ ɞɢɫɤɢ ɫ ɧɚɦɚɡɤɨɣ ɚɛɪɚɡɢɜɧɨɣ ɫɦɟɫɶɸ ɩɪɢɦɟɧɹɸɬ ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɬɜɟɪɞɨɫɩɥɚɜɧɵɯ ɩɥɚɫɬɢɧ ɪɟɠɭɳɢɯ ɢɧɫɬɪɭɦɟɧɬɨɜ, ɦɚɲɢɧɧɨ-ɪɭɱɧɨɣ ɞɨɜɨɞɤɟ ɝɥɚɞɤɢɯ ɤɚɥɢɛɪɨɜ-ɩɪɨɛɨɤ ɢ ɪɭɱɧɨɣ ɞɨɜɨɞɤɟ ɲɚɛɥɨɧɨɜ, ɤɚɥɢɛɪɨɜ ɢ ɞɪɭɝɢɯ ɞɟɬɚɥɟɣ.
Ⱦɨɜɨɞɤɢ ɫ ɧɟɩɪɟɪɵɜɧɨɣ ɩɨɞɚɱɟɣ ɚɛɪɚɡɢɜɧɨɣ ɫɦɟɫɢ ɩɪɢɦɟɧɹɸɬ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɞɟɬɚɥɟɣ ɬɢɩɚ ɩɨɪɲɧɟɜɵɯ ɩɚɥɶɰɟɜ, ɪɚɡɥɢɱɧɵɯ ɞɢɫɤɨɜ, ɢɝɥ ɬɨɩɥɢɜɧɵɯ ɧɚɫɨɫɨɜ ɢ ɬ. ɞ.
Ⱦɨɜɨɞɤɭ ɲɚɪɠɢɪɨɜɚɧɧɵɦɢ ɩɥɢɬɚɦɢ ɢ ɤɪɭɝɚɦɢ ɩɪɢɦɟɧɹɸɬ ɩɪɢ ɢɡɝɨɬɨɜɥɟɧɢɢ ɩɥɨɫɤɨ-ɩɚɪɚɥɥɟɥɶɧɵɯ ɩɥɢɬɨɤ ɢ ɤɨɧɰɟɜɵɯ ɦɟɪ ɞɥɢɧɵ.
Ⱥɛɪɚɡɢɜɧɵɟ ɤɪɭɝɢ ɩɪɢɦɟɧɹɸɬ ɩɪɢ ɦɚɲɢɧɧɨɣ ɞɨɜɨɞɤɟ ɩɨɪɲɧɟɜɵɯ ɩɚɥɶɰɟɜ, ɩɨɪɲɧɟɜɵɯ ɤɨɥɟɰ, ɪɨɥɢɤɨɜ ɩɨɞɲɢɩɧɢɤɨɜ ɢ ɬɨɦɭ ɩɨɞɨɛɧɵɯ ɞɟɬɚɥɟɣ, ɚ ɚɛɪɚɡɢɜɧɵɟ ɛɪɭɫɤɢ – ɞɥɹ ɞɨɜɨɞɤɢ ɢɡɦɟɪɢɬɟɥɶɧɵɯ ɢɧɫɬɪɭɦɟɧɬɨɜ ɩɪɢ ɪɟɦɨɧɬɟ.
ɉɨɞɪɨɛɧɨɟ ɨɩɢɫɚɧɢɟ ɢɧɫɬɪɭɦɟɧɬɚ, ɚɛɪɚɡɢɜɨɜ, ɩɚɫɬ, ɫɦɚɡɵɜɚɸɳɢɯ ɢ ɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ, ɩɪɢɦɟɧɹɟɦɵɯ ɩɪɢ ɞɨɜɨɞɤɟ ɩɨɜɟɪɯɧɨɫɬɟɣ, ɞɚɧɨ ɜ ɫɩɪɚɜɨɱɧɢɤɟ [2] ɢ ɪɚɛɨɬɚɯ [3, 4].
9.2. Ɋɟɠɢɦɵ ɞɨɜɨɞɤɢ
ɋɤɨɪɨɫɬɢ ɞɨɜɨɞɨɱɧɵɯ ɤɪɭɝɨɜ ɢ ɩɪɢɬɢɪɨɜ ɡɚɜɢɫɹɬ ɨɬ ɯɚɪɚɤɬɟɪɚ ɞɨɜɨɞɤɢ. ɉɪɢ ɦɚɲɢɧɨɣ ɞɨɜɨɞɤɟ ɧɚ ɫɬɚɧɤɚɯ, ɪɚɛɨɬɚɸɳɢɯ ɬɨɪɰɚɦɢ ɩɪɢɬɢɪɨɱɧɵɯ
ɤɪɭɝɨɜ, ɨɤɪɭɠɧɚɹ ɫɤɨɪɨɫɬɶ ɩɪɢɬɢɪɨɜ ɧɚɯɨɞɢɬɫɹ ɜ ɩɪɟɞɟɥɚɯ 110–180 ɦ/ɦɢɧ; ɷɤɫɰɟɧɬɪɢɫɢɬɟɬ ɪɚɫɩɨɥɨɠɟɧɢɹ ɫɟɩɚɪɚɬɨɪɚ ɪɚɜɟɧ 5–15 ɦɦ, ɭɝɨɥ ɩɨɜɨɪɨɬɚ ɞɟɬɚɥɢ ɤ ɪɚɞɢɭɫɭ ɫɟɩɚɪɚɬɨɪɚ D = 5–15°.
ɇɚ ɞɨɜɨɞɨɱɧɵɯ ɫɬɚɧɤɚɯ ɫ ɩɥɢɬɚɦɢ ɩɪɢ ɜɨɡɜɪɚɬɧɨ-ɩɨɫɬɭɩɚɬɟɥɶɧɨɦ ɞɜɢɠɟɧɢɢ ɫɟɩɚɪɚɬɨɪɧɵɯ ɥɟɧɬ ɫɤɨɪɨɫɬɢ ɢɡɦɟɧɹɸɬɫɹ ɨɬ 8 ɞɨ 15 ɦ/ɦɢɧ.
ɇɚ ɛɟɫɰɟɧɬɪɨɜɵɯ ɞɨɜɨɞɨɱɧɵɯ ɫɬɚɧɤɚɯ, ɪɚɛɨɬɚɸɳɢɯ ɩɟɪɢɮɟɪɢɟɣ ɤɪɭɝɨɜ, ɫɤɨɪɨɫɬɢ ɞɨɜɨɞɨɱɧɵɯ ɤɪɭɝɨɜ ɢɡɦɟɧɹɸɬɫɹ ɨɬ 130 ɞɨ 300 ɦ/ɦɢɧ, ɫɤɨɪɨɫɬɢ ɪɟɝɭ-
85
ɥɢɪɭɸɳɢɯ ɤɪɭɝɨɜ – ɨɬ 80 ɞɨ 130 ɦ/ɦɢɧ. ɉɪɢ ɨɤɨɧɱɚɬɟɥɶɧɵɯ ɩɪɨɯɨɞɚɯ ɫɤɨɪɨɫɬɶ ɞɨɜɨɞɨɱɧɨɝɨ ɤɪɭɝɚ ɭɦɟɧɶɲɚɸɬ, ɚ ɫɤɨɪɨɫɬɶ ɪɟɝɭɥɢɪɭɸɳɟɝɨ ɤɪɭɝɚ ɭɜɟɥɢɱɢɜɚɸɬ. ȼ ɛɟɫɰɟɧɬɪɨɜɵɯ ɫɬɚɧɤɚɯ ɩɪɢɧɢɦɚɸɬ ɭɝɥɵ ɩɨɜɨɪɨɬɚ ɞɨɜɨɞɨɱɧɨɝɨ ɤɪɭɝɚ ɨɬ 3 ɞɨ 3,5°, ɪɟɝɭɥɢɪɭɸɳɟɝɨ ɤɪɭɝɚ – ɨɬ 1 ɞɨ 2°.
ɇɚ ɫɬɚɧɤɚɯ ɞɥɹ ɞɨɜɨɞɤɢ ɬɜɟɪɞɨɫɩɥɚɜɧɵɯ ɪɟɡɰɨɜ ɨɤɪɭɠɧɭɸ ɫɤɨɪɨɫɬɶ ɞɨɜɨɞɨɱɧɵɯ ɤɪɭɝɨɜ ɩɪɢɧɢɦɚɸɬ ɪɚɜɧɨɣ ɨɬ 50 ɞɨ 120 ɦ/ɦɢɧ.
ɍɞɟɥɶɧɵɟ ɞɚɜɥɟɧɢɹ ɩɪɢ ɞɨɜɨɞɤɟ ɧɟ ɩɪɟɜɵɲɚɸɬ q = 1,5–2 ɤȽ/ɫɦ2. ɋɧɹɬɢɟ ɦɟɬɚɥɥɚ ɬɟɦ ɛɨɥɶɲɟ, ɱɟɦ ɜɵɲɟ ɭɞɟɥɶɧɨɟ ɞɚɜɥɟɧɢɟ. ɑɪɟɡɦɟɪɧɨɟ ɭɜɟɥɢɱɟɧɢɟ ɞɚɜɥɟɧɢɹ ɦɨɠɟɬ ɩɪɢɜɟɫɬɢ ɤ ɡɚɞɢɪɚɦ ɨɛɪɚɛɚɬɵɜɚɟɦɨɣ ɩɨɜɟɪɯɧɨɫɬɢ.
ȼ ɬɚɛɥɢɰɟ 9.1 ɩɪɢɜɟɞɟɧɵ ɩɪɢɦɟɪɵ ɞɨɜɨɞɤɢ ɞɟɬɚɥɟɣ ɫ ɭɤɚɡɚɧɢɟɦ ɬɢɩɨɜ ɩɪɢɬɢɪɨɜ, ɨɯɥɚɠɞɚɸɳɢɯ ɢ ɫɦɚɡɵɜɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ, ɚɛɪɚɡɢɜɨɜ ɢɥɢ ɩɚɫɬ, ɪɟɠɢɦɨɜ ɞɨɜɨɞɤɢ ɢ ɫɧɢɦɚɟɦɵɯ ɩɪɢɩɭɫɤɨɜ.
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Ɍɚɛɥɢɰɚ 9.1 |
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ɉɪɢɦɟɪɵ ɞɨɜɨɞɤɢ ɞɟɬɚɥɟɣ |
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Ɍɢɩ ɩɪɢɬɢɪɚ |
ɋɦɚɡɵɜɚɸɳɢɟ |
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ɋɧɢɦɚɟɦɵɣ |
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Ɉɛɪɚɛɚɬɵɜɚɟɦɚɹ |
ɢ ɟɝɨ ɪɚɡɦɟɪɵ, |
ɢ ɨɯɥɚɠɞɚɸɳɢɟ |
Ⱥɛɪɚɡɢɜɵ |
ɩɪɢɩɭɫɤ, |
Ɋɟɠɢɦ |
ɞɟɬɚɥɶ |
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ɞɨɜɨɞɤɢ |
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ɦɦ |
ɠɢɞɤɨɫɬɢ |
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ɦɦ |
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Ⱥɛɪɚɡɢɜɧɵɣ |
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ɤɪɭɝ |
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ɞɢɚɦɟɬɪɨɦ |
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600 ɦɦ, |
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ɗ220ɑɌɄ |
0,04 |
nɜɤ = 77 |
Ʉɨɧɢɱɟɫɤɢɟ ɪɨɥɢɤɢ |
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ɋɨɞɨɜɵɣ |
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ɲɢɪɢɧɨɣ |
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ɨɛ/ɦɢɧ |
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ɩɨɞɲɢɩɧɢɤɨɜ |
100 ɦɦ, |
ɪɚɫɬɜɨɪ |
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ɜɧɭɬɪɟɧɧɢɦ |
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ɞɢɚɦɟɬɪɨɦ |
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290 ɦɦ |
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Ⱥɛɪɚɡɢɜɧɵɣ |
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nɪɤ = 125 |
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ɤɪɭɝ |
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ɨɛ/ɦɢɧ; |
ɉɨɪɲɧɟɜɵɟ ɩɚɥɶɰɵ |
ɞɢɚɦɟɬɪɨɦ |
ɋɨɞɨɜɵɣ |
ɗ500ɋɆ1 |
0,005 |
D = 1°; |
ɚɜɬɨɦɨɛɢɥɶɧɵɯ |
350 ɦɦ, |
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nɜɤ = 132 |
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ɪɚɫɬɜɨɪ |
Ȼ |
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ɞɜɢɝɚɬɟɥɟɣ |
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ɨɛ/ɦɢɧ; |
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ɲɢɪɢɧɨɣ |
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550 ɦɦ |
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D = 1,5° |
ɉɨɪɲɧɟɜɵɟ ɤɨɥɶɰɚ |
Ⱥɛɪɚɡɢɜɧɵɣ |
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nɜɤ = 90 |
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ɤɪɭɝ |
ɋɨɞɨɜɵɣ |
ɗ400ɋ1Ʉ |
0,010 |
ɨɛ/ɦɢɧ; |
ɚɜɬɨɦɨɛɢɥɶɧɵɯ |
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nɧɤ = 100 |
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ɞɢɚɦɟɬɪɨɦ |
ɪɚɫɬɜɨɪ |
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ɞɜɢɝɚɬɟɥɟɣ |
600 ɦɦ |
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ɨɛ/ɦɢɧ |
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ɑɭɝɭɧɧɵɟ |
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nɜɤ = 63 |
Ƚɥɚɞɤɢɟ |
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ɨɛ/ɦɢɧ; |
ɤɚɥɢɛɪɵ-ɩɪɨɛɤɢ |
ɞɢɫɤɢ |
Ʉɟɪɨɫɢɧ |
Ʉɨɪɭɧɞ |
0,007–0,009 |
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(ɦɚɲɢɧɧɚɹ ɞɨɜɨɞɤɚ) |
ɞɢɚɦɟɬɪɨɦ |
ɢ ɫɬɟɚɪɢɧ |
Ɇ7 |
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nɧɤ = 75 |
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600 ɦɦ |
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ɨɛ/ɦɢɧ |
ɍɫɥɨɜɧɵɟ ɨɛɨɡɧɚɱɟɧɢɹ:
nɜɤ – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɜɟɪɯɧɟɝɨ ɞɨɜɨɞɨɱɧɨɝɨ ɤɪɭɝɚ, ɨɛ/ɦɢɧ; nɧɤ – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɧɢɠɧɟɝɨ ɞɨɜɨɞɨɱɧɨɝɨ ɤɪɭɝɚ, ɨɛ/ɦɢɧ; nɪɤ – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɪɟɝɭɥɢɪɭɸɳɟɝɨ ɤɪɭɝɚ, ɨɛ/ɦɢɧ;
D – ɭɝɨɥ ɩɨɜɨɪɨɬɚ ɞɟɬɚɥɢ ɤ ɪɚɞɢɭɫɭ ɫɟɩɚɪɚɬɨɪɚ ɢɧɫɬɪɭɦɟɧɬɚ.
86
10.ɉɊɂɌɂɊɈɑɇɈȿ ɒɅɂɎɈȼȺɇɂȿ
10.1.ɇɚɡɧɚɱɟɧɢɟ ɢ ɨɛɥɚɫɬɢ ɩɪɢɦɟɧɟɧɢɹ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ
ɉɪɢɬɢɪɨɱɧɨɟ ɲɥɢɮɨɜɚɧɢɟ ɩɪɨɢɡɜɨɞɢɬɫɹ ɜ ɰɟɥɹɯ ɩɨɜɵɲɟɧɢɹ ɬɨɱɧɨɫɬɢ ɮɨɪɦɵ, ɪɚɡɦɟɪɨɜ ɢ ɫɧɢɠɟɧɢɹ ɲɟɪɨɯɨɜɚɬɨɫɬɢ ɩɨɜɟɪɯɧɨɫɬɢ ɨɛɪɚɛɚɬɵɜɚɟɦɵɯ ɞɟɬɚɥɟɣ.
ɉɪɢɬɢɪɚɸɬ, ɝɥɚɜɧɵɦ ɨɛɪɚɡɨɦ, ɨɬɜɟɪɫɬɢɹ ɞɢɚɦɟɬɪɨɦ ɨɬ 5 ɞɨ 1100 ɦɦ ɢ ɞɥɢɧɨɣ ɞɨ 20 000 ɦɦ. ɇɚɪɭɠɧɵɟ ɰɢɥɢɧɞɪɢɱɟɫɤɢɟ ɩɨɜɟɪɯɧɨɫɬɢ ɩɪɢɬɢɪɚɸɬ ɡɧɚɱɢɬɟɥɶɧɨ ɪɟɠɟ.
ɂɧɫɬɪɭɦɟɧɬɨɦ ɞɥɹ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ ɫɥɭɠɚɬ ɚɛɪɚɡɢɜɧɵɟ ɛɪɭɫɤɢ, ɭɤɪɟɩɥɟɧɧɵɟ ɜ ɝɨɥɨɜɤɚɯ ɞɥɹ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ.
ɉɨɞɪɨɛɧɨɟ ɨɩɢɫɚɧɢɟ ɢɧɫɬɪɭɦɟɧɬɚ, ɚɛɪɚɡɢɜɨɜ, ɩɚɫɬ, ɫɦɚɡɵɜɚɸɳɢɯ ɢ ɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ, ɩɪɢɦɟɧɹɟɦɵɯ ɜ ɯɨɞɟ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ, ɞɚɧɨ ɜ ɫɩɪɚɜɨɱɧɢɤɟ [2] ɢ ɪɚɛɨɬɚɯ [3, 4].
10.2. Ɋɟɠɢɦɵ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ
Ɉɤɪɭɠɧɵɟ ɫɤɨɪɨɫɬɢ ɛɪɭɫɤɨɜ ɪɟɤɨɦɟɧɞɭɸɬɫɹ:
1)ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɱɭɝɭɧɚ – 60–70 ɦ/ɦɢɧ;
2)ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɫɬɚɥɢ – 45–60 ɦ/ɦɢɧ;
3)ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɛɪɨɧɡɵ ɢ ɥɚɬɭɧɢ – 70–90 ɦ/ɦɢɧ.
ɋɤɨɪɨɫɬɢ ɩɪɹɦɨɥɢɧɟɣɧɨɝɨ ɜɨɡɜɪɚɬɧɨ-ɩɨɫɬɭɩɚɬɟɥɶɧɨɝɨ ɞɜɢɠɟɧɢɹ ɝɨɥɨɜɤɢ ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɜɫɟɯ ɦɚɬɟɪɢɚɥɨɜ ɩɪɢɧɢɦɚɸɬ ɪɚɜɧɵɦɢ ɨɬ 10 ɞɨ 20 ɦ/ɦɢɧ.
ɍɞɟɥɶɧɨɟ ɞɚɜɥɟɧɢɟ ɛɪɭɫɤɨɜ ɩɪɢ ɩɪɟɞɜɚɪɢɬɟɥɶɧɨɦ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɪɟɤɨɦɟɧɞɭɟɬɫɹ ɩɪɢɧɢɦɚɬɶ ɪɚɜɧɵɦ ɨɬ 4 ɞɨ 5 ɤȽ/ɫɦ2, ɩɪɢ ɱɢɫɬɨɜɨɦ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ – ɨɬ 3 ɞɨ 4 ɤȽ/ɫɦ2.
Ɉɤɪɭɠɧɵɟ ɫɤɨɪɨɫɬɢ ɢ ɭɞɟɥɶɧɵɟ ɞɚɜɥɟɧɢɹ ɛɪɭɫɤɨɜ ɨɤɚɡɵɜɚɸɬ ɡɧɚɱɢɬɟɥɶɧɨɟ ɜɥɢɹɧɢɟ ɧɚ ɩɪɨɢɡɜɨɞɢɬɟɥɶɧɨɫɬɶ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ, ɩɨɷɬɨɦɭ ɢɯ ɡɧɚɱɟɧɢɹ ɠɟɥɚɬɟɥɶɧɨ ɩɪɢɧɢɦɚɬɶ ɜɵɫɨɤɢɦɢ. ɂɧɨɝɞɚ ɩɪɢɦɟɧɹɸɬ ɩɨɧɢɠɟɧɧɵɟ ɫɤɨɪɨɫɬɢ. ɇɚɩɪɢɦɟɪ, ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɝɥɭɛɨɤɢɯ ɨɬɜɟɪɫɬɢɣ ɜ ɞɟɬɚɥɹɯ ɢɡ ɫɩɟɰɢɚɥɶɧɨɣ ɫɬɚɥɢ ɩɪɢɦɟɧɹɸɬ ɨɤɪɭɠɧɵɟ ɫɤɨɪɨɫɬɢ ɨɬ 25 ɞɨ 27 ɦ/ɦɢɧ, ɫɤɨɪɨɫɬɢ ɜɨɡɜɪɚɬ- ɧɨ-ɩɨɫɬɭɩɚɬɟɥɶɧɨɝɨ ɞɜɢɠɟɧɢɹ – ɨɬ 7 ɞɨ 11 ɦ/ɦɢɧ.
Ɍɨɥɳɢɧɚ ɫɥɨɹ ɦɟɬɚɥɥɚ, ɫɧɢɦɚɟɦɨɝɨ ɡɚ ɞɜɨɣɧɨɣ ɯɨɞ ɩɪɢɬɢɪɨɱɧɨɣ ɲɥɢɮɨɜɚɥɶɧɨɣ ɝɨɥɨɜɤɢ, ɡɚɜɢɫɢɬ ɨɬ ɨɛɪɚɛɚɬɵɜɚɟɦɨɝɨ ɦɟɬɚɥɥɚ, ɯɚɪɚɤɬɟɪɢɫɬɢɤ ɛɪɭɫɤɨɜ, ɤɨɥɢɱɟɫɬɜɚ ɛɪɭɫɤɨɜ ɜ ɝɨɥɨɜɤɟ, ɯɚɪɚɤɬɟɪɚ ɩɪɟɞɵɞɭɳɟɣ ɨɛɪɚɛɨɬɤɢ, ɩɪɢɩɭɫɤɚ, ɪɚɡɦɟɪɨɜ ɨɛɪɚɛɚɬɵɜɚɟɦɵɯ ɨɬɜɟɪɫɬɢɣ ɢ ɞɪɭɝɢɯ ɮɚɤɬɨɪɨɜ. ɉɨ ɡɚɜɨɞɫɤɢɦ ɞɚɧɧɵɦ, ɨɬɧɨɫɹɳɢɦɫɹ ɤ ɨɛɪɚɛɨɬɤɟ ɝɥɭɛɨɤɢɯ ɨɬɜɟɪɫɬɢɣ, ɬɨɥɳɢɧɚ ɫɥɨɹ ɦɟɬɚɥɥɚ, ɫɧɢɦɚɟɦɨɝɨ ɡɚ ɞɜɨɣɧɨɣ ɯɨɞ ɝɨɥɨɜɤɢ, ɦɨɠɟɬ ɫɨɫɬɚɜɥɹɬɶ ɨɬ 0,7 ɞɨ 5,0 ɦɤɦ.
87
ɒɟɪɨɯɨɜɚɬɨɫɬɶ ɩɨɜɟɪɯɧɨɫɬɢ ɩɨɫɥɟ ɩɪɢɬɢɪɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ ɜ ɡɚɜɢɫɢɦɨɫɬɢ ɨɬ ɡɟɪɧɢɫɬɨɫɬɢ ɛɪɭɫɤɨɜ ɢ ɪɟɠɢɦɨɜ ɪɚɛɨɬɵ ɦɨɠɟɬ ɞɨɫɬɢɝɚɬɶ 10 – 11 ɤɥɚɫ-
ɫɨɜ ɩɨ ȽɈɋɌ 2789-73 (Ra = 0,08–0,32 ɦɤɦ, Rz = 0,4–1,6 ɦɤɦ).
ɋɢɥɚ ɪɟɡɚɧɢɹ ɩɪɢ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ
ɉɪɢ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɨɛɵɱɧɨ ɪɚɫɫɱɢɬɵɜɚɸɬ ɞɜɟ ɫɨɫɬɚɜɥɹɸɳɢɯ ɫɢɥɵ ɪɟɡɚɧɢɹ:
1)ɬɚɧɝɟɧɰɢɚɥɶɧɭɸ ɫɨɫɬɚɜɥɹɸɳɭɸ (ɨɤɪɭɠɧɨɟ ɭɫɢɥɢɟ) Pz;
2)ɨɫɟɜɭɸ ɫɨɫɬɚɜɥɹɸɳɭɸ (ɨɫɟɜɨɟ ɭɫɢɥɢɟ) Px.
ɋɨɫɬɚɜɥɹɸɳɢɟ ɫɢɥɵ ɪɟɡɚɧɢɹ Pz ɢ Px ɩɪɢ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɪɚɫɫɱɢɬɵɜɚɸɬɫɹ ɩɨ ɮɨɪɦɭɥɚɦ:
1) ɬɚɧɝɟɧɰɢɚɥɶɧɚɹ ɫɨɫɬɚɜɥɹɸɳɚɹ (ɨɤɪɭɠɧɨɟ ɭɫɢɥɢɟ) Pz (ɤȽ):
Pz |
Uz S q ; |
(10.1) |
2) ɨɫɟɜɚɹ ɫɨɫɬɚɜɥɹɸɳɚɹ (ɨɫɟɜɨɟ ɭɫɢɥɢɟ) Px (ɤȽ): |
|
|
Px |
Ux S q , |
(10.2) |
ɝɞɟ Uz, Ux – ɤɨɷɮɮɢɰɢɟɧɬɵ ɩɪɢɬɢɪɚɧɢɹ ɞɥɹ ɪɚɫɱɟɬɚ ɫɨɨɬɜɟɬɫɬɜɭɸɳɢɯ ɫɨɫɬɚɜɥɹɸɳɢɯ ɫɢɥɵ ɪɟɡɚɧɢɹ;
S – ɫɭɦɦɚɪɧɚɹ ɪɚɛɨɱɚɹ ɩɥɨɳɚɞɶ ɛɪɭɫɤɨɜ ɝɨɥɨɜɤɢ, ɫɦ2;
q – ɭɞɟɥɶɧɨɟ ɞɚɜɥɟɧɢɟ ɛɪɭɫɤɨɜ ɧɚ ɩɨɜɟɪɯɧɨɫɬɶ ɢɡɞɟɥɢɹ, ɤȽ/ɫɦ2.
ɍɞɟɥɶɧɨɟ ɞɚɜɥɟɧɢɟ ɛɪɭɫɤɨɜ ɧɚ ɩɨɜɟɪɯɧɨɫɬɶ ɢɡɞɟɥɢɹ q ɡɚɜɢɫɢɬ ɨɬ ɪɨɞɚ ɛɪɭɫɤɨɜ, ɪɟɠɢɦɚ ɪɚɛɨɬɵ ɨɛɪɚɛɚɬɵɜɚɟɦɵɯ ɦɚɬɟɪɢɚɥɨɜ ɢ ɞɪɭɝɢɯ ɮɚɤɬɨɪɨɜ. ɉɪɢɛɥɢɠɟɧɧɵɟ ɡɧɚɱɟɧɢɹ ɤɨɷɮɮɢɰɢɟɧɬɨɜ ɩɪɢɬɢɪɚɧɢɹ Uz ɢ Ux, ɩɪɢɝɨɞɧɵɟ ɞɥɹ ɨɪɢɟɧɬɢɪɨɜɨɱɧɵɯ ɪɚɫɱɟɬɨɜ, ɫɨɫɬɚɜɥɹɸɳɢɯ Pz ɢ Px ɫɢɥɵ ɪɟɡɚɧɢɹ ɩɪɢ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ, ɩɪɢɜɟɞɟɧɵ ɜ ɬɚɛɥɢɰɟ 10.1. Ɂɧɚɱɟɧɢɹ ɩɪɢɩɭɫɤɨɜ ɧɚ ɩɪɢɬɢɪɨɱɧɨɟ ɲɥɢɮɨɜɚɧɢɟ ɞɥɹ ɨɬɜɟɪɫɬɢɣ ɪɚɡɥɢɱɧɵɯ ɞɢɚɦɟɬɪɨɜ ɭɤɚɡɚɧɵ ɜ ɬɚɛɥɢɰɟ 10.2.
Ɍɚɛɥɢɰɚ 10.1 Ɂɧɚɱɟɧɢɹ ɤɨɷɮɮɢɰɢɟɧɬɨɜ Uz ɢ Ux ɜ ɮɨɪɦɭɥɚɯ (10.1) ɢ (10.2)
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Ɂɧɚɱɟɧɢɟ ɤɨɷɮɮɢɰɢɟɧɬɚ ɩɪɢɬɢɪɚɧɢɹ |
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Ɉɛɪɚɛɚɬɵɜɚɟɦɵɣ ɦɚɬɟɪɢɚɥ |
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Uz |
Ux |
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ɇɟɡɚɤɚɥɟɧɧɚɹ ɫɬɚɥɶ |
0,20–0,30 |
0,03–0,06 |
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Ɂɚɤɚɥɟɧɧɚɹ ɫɬɚɥɶ |
0,20–0,30 |
0,05–0,07 |
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ɑɭɝɭɧ |
0,20–0,25 |
0,04–0,06 |
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88
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Ɍɚɛɥɢɰɚ 10.2 |
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ɉɪɢɩɭɫɤɢ ɧɚ ɩɪɢɬɢɪɨɱɧɨɟ ɲɥɢɮɨɜɚɧɢɟ |
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Ⱦɢɚɦɟɬɪ ɨɬɜɟɪɫɬɢɹ, ɦɦ |
Ⱦɜɭɫɬɨɪɨɧɧɢɣ ɩɪɢɩɭɫɤ (ɩɪɢɩɭɫɤ ɧɚ ɞɢɚɦɟɬɪ), ɦɦ |
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ɑɭɝɭɧ |
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ɋɬɚɥɶ |
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25–125 |
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0,03–0,08 |
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0,01–0,025 |
126–175 |
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0,08–0,12 |
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0,025–0,04 |
176–500 |
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0,12–0,20 |
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0,04–0,06 |
ɉɪɢɦɟɱɚɧɢɹ:
1.ɇɚ ɨɤɨɧɱɚɬɟɥɶɧɭɸ ɩɪɢɬɢɪɤɭ ɨɛɵɱɧɨ ɨɫɬɚɜɥɹɟɬɫɹ ɩɪɢɩɭɫɤ 0,005–0,015 ɦɦ ɧɚ ɞɢɚɦɟɬɪ (ɞɜɭɫɬɨɪɨɧɧɢɣ ɩɪɢɩɭɫɤ).
2.Ʌɭɱɲɟɣ ɫɦɚɡɵɜɚɸɳɟ-ɨɯɥɚɠɞɚɸɳɟɣ ɠɢɞɤɨɫɬɶɸ ɩɪɢ ɩɪɢɬɢɪɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɹɜɥɹɟɬɫɹ ɤɟɪɨɫɢɧ.
89
11. ɈɌȾȿɅɈɑɇɈȿ ɒɅɂɎɈȼȺɇɂȿ ɂ ɉɈɅɂɊɈȼȺɇɂȿ
11.1. Ɉɛɳɢɟ ɫɜɟɞɟɧɢɹ ɨɛ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ
Ɉɬɞɟɥɨɱɧɨɟ ɲɥɢɮɨɜɚɧɢɟ ɨɛɟɫɩɟɱɢɜɚɟɬ ɩɨɥɭɱɟɧɢɟ ɬɨɥɶɤɨ ɦɚɥɨɣ ɲɟɪɨɯɨɜɚɬɨɫɬɢ ɩɨɜɟɪɯɧɨɫɬɢ. Ɏɨɪɦɚ ɢ ɪɚɡɦɟɪɵ ɞɟɬɚɥɟɣ ɞɨɥɠɧɵ ɛɵɬɶ ɩɨɥɭɱɟɧɵ ɞɨ ɨɬɞɟɥɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ.
ȼ ɤɚɱɟɫɬɜɟ ɪɟɠɭɳɢɯ ɢɧɫɬɪɭɦɟɧɬɨɜ ɩɪɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɢɫɩɨɥɶɡɭɸɬ ɦɟɥɤɨɡɟɪɧɢɫɬɵɟ ɚɛɪɚɡɢɜɧɵɟ ɛɪɭɫɤɢ, ɩɥɨɫɤɢɟ ɢ ɱɚɲɟɱɧɵɟ ɤɪɭɝɢ ɬɚɤɨɣ ɬɜɟɪɞɨɫɬɢ, ɩɪɢ ɤɨɬɨɪɨɣ ɩɪɨɢɫɯɨɞɢɬ ɫɧɹɬɢɟ ɦɢɤɪɨɧɟɪɨɜɧɨɫɬɟɣ ɩɨɜɟɪɯɧɨɫɬɢ ɜ ɧɚɱɚɥɟ ɨɩɟɪɚɰɢɢ ɢ ɩɨɫɬɟɩɟɧɧɨɟ ɡɚɬɭɩɥɟɧɢɟ ɢɧɫɬɪɭɦɟɧɬɨɜ ɩɨ ɦɟɪɟ ɭɜɟɥɢɱɟɧɢɹ ɢɯ ɤɨɧɬɚɤɬɚ ɫ ɨɛɪɚɛɚɬɵɜɚɟɦɨɣ ɩɨɜɟɪɯɧɨɫɬɶɸ.
Ɂɚɬɭɩɥɟɧɢɟ ɢɧɫɬɪɭɦɟɧɬɚ ɩɪɢɜɨɞɢɬ ɤ ɭɦɟɧɶɲɟɧɢɸ ɬɨɥɳɢɧɵ ɫɥɨɹ ɫɧɢɦɚɟɦɨɝɨ ɦɟɬɚɥɥɚ ɢ ɤ ɩɨɥɭɱɟɧɢɸ ɩɨɜɟɪɯɧɨɫɬɢ ɫ ɦɚɥɨɣ ɲɟɪɨɯɨɜɚɬɨɫɬɶɸ.
ɉɪɢ ɨɛɪɚɛɨɬɤɟ ɨɱɟɪɟɞɧɨɣ ɞɟɬɚɥɢ ɩɪɨɢɡɜɨɞɹɬ ɩɪɚɜɤɭ ɢɧɫɬɪɭɦɟɧɬɚ, ɢ ɰɢɤɥ ɩɨɜɬɨɪɹɟɬɫɹ.
Ɉɬɞɟɥɨɱɧɨɟ ɲɥɢɮɨɜɚɧɢɟ ɩɪɨɜɨɞɢɬɫɹ ɫ ɢɫɩɨɥɶɡɨɜɚɧɢɟɦ ɫɦɚɡɨɱɧɨɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ.
ɉɨɞɪɨɛɧɨɟ ɨɩɢɫɚɧɢɟ ɢɧɫɬɪɭɦɟɧɬɚ, ɚɛɪɚɡɢɜɨɜ, ɫɦɚɡɵɜɚɸɳɢɯ ɢ ɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ, ɩɪɢɦɟɧɹɟɦɵɯ ɩɪɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ, ɞɚɧɨ ɜ ɫɩɪɚɜɨɱɧɢɤɟ [2] ɢ ɪɚɛɨɬɚɯ [3, 4].
11.2. Ɋɟɠɢɦɵ ɨɬɞɟɥɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ
ɉɪɢ ɨɛɪɚɛɨɬɤɟ ɲɟɟɤ ɫɬɚɥɶɧɵɯ ɡɚɤɚɥɟɧɧɵɯ ɲɩɢɧɞɟɥɟɣ ɦɟɬɚɥɥɨɪɟɠɭɳɢɯ ɫɬɚɧɤɨɜ ɩɪɢɧɢɦɚɸɬ ɨɤɪɭɠɧɵɟ ɫɤɨɪɨɫɬɢ 30–45 ɦ/ɦɢɧ, ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɤɨɥɟɰ ɩɨɞɲɢɩɧɢɤɨɜ – ɩɨɪɹɞɤɚ 90–100 ɦ/ɦɢɧ.
ȼ ɫɬɚɧɤɚɯ ɞɥɹ ɨɬɞɟɥɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ ɲɟɟɤ ɤɨɥɟɧɱɚɬɵɯ ɜɚɥɨɜ ɫ ɪɟɝɭɥɢɪɨɜɚɧɢɟɦ ɫɤɨɪɨɫɬɢ ɜ ɩɪɨɰɟɫɫɟ ɪɚɛɨɬɵ ɧɚɱɚɥɶɧɭɸ ɫɤɨɪɨɫɬɶ ɞɟɬɚɥɟɣ ɩɪɢɧɢɦɚɸɬ ɪɚɜɧɨɣ 6–9 ɦ/ɦɢɧ, ɚ ɤ ɨɤɨɧɱɚɧɢɸ ɨɩɟɪɚɰɢɢ ɭɜɟɥɢɱɢɜɚɸɬ ɞɨ 27 ɦ/ɦɢɧ.
ɉɪɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɚɥɸɦɢɧɢɟɜɵɯ ɩɨɪɲɧɟɣ ɫɤɨɪɨɫɬɶ ɜɪɚɳɟɧɢɹ ɨɛɪɚɛɚɬɵɜɚɟɦɵɯ ɞɟɬɚɥɟɣ ɩɪɢɧɢɦɚɸɬ ɪɚɜɧɨɣ 120–140 ɦ/ɦɢɧ.
ɑɚɫɬɨɬɚ ɤɨɥɟɛɚɬɟɥɶɧɵɯ ɞɜɢɠɟɧɢɣ ɚɛɪɚɡɢɜɧɵɯ ɢɧɫɬɪɭɦɟɧɬɨɜ ɩɪɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɞɨɥɠɧɚ ɛɵɬɶ ɤɚɤ ɦɨɠɧɨ ɛɨɥɟɟ ɜɵɫɨɤɨɣ. ȿɟ ɡɧɚɱɟɧɢɟ ɨɝɪɚɧɢɱɢɜɚɟɬɫɹ ɪɚɡɦɟɪɚɦɢ ɨɩɪɚɜɨɤ.
ɉɪɢ ɬɹɠɟɥɵɯ ɨɩɪɚɜɤɚɯ ɱɢɫɥɨ ɞɜɨɣɧɵɯ ɯɨɞɨɜ ɩɪɢɧɢɦɚɟɬɫɹ ɪɚɜɧɵɦ 500 ɜ ɦɢɧ, ɩɪɢ ɥɟɝɤɢɯ ɨɩɪɚɜɤɚɯ – ɞɨ 1000–1500 ɯɨɞɨɜ ɜ ɦɢɧ. ȼɟɥɢɱɢɧɚ ɯɨɞɚ ɧɚɯɨɞɢɬɫɹ ɜ ɩɪɟɞɟɥɚɯ ɨɬ 3 ɞɨ 6 ɦɦ.
90
