Расчёт режимов резания. Курсовое и дипломное проектирование по технологии машиностроения. Учебное пособие
.pdfɍɞɟɥɶɧɵɟ ɞɚɜɥɟɧɢɹ ɚɛɪɚɡɢɜɧɵɯ ɛɪɭɫɤɨɜ ɜɥɢɹɸɬ ɧɚ ɲɟɪɨɯɨɜɚɬɨɫɬɶ ɩɨɜɟɪɯɧɨɫɬɢ ɢ ɩɪɨɞɨɥɠɢɬɟɥɶɧɨɫɬɶ ɨɩɟɪɚɰɢɢ. ɂɯ ɡɧɚɱɟɧɢɹ ɧɚɯɨɞɹɬɫɹ ɜ ɩɪɟɞɟɥɚɯ ɨɬ 1,5 ɞɨ 2,5 ɤȽ/ɫɦ2.
ȼɵɫɨɤɢɟ ɭɞɟɥɶɧɵɟ ɞɚɜɥɟɧɢɹ ɩɪɢɦɟɧɹɸɬ ɩɪɢ ɨɛɪɚɛɨɬɤɟ ɬɜɟɪɞɵɯ ɦɟɬɚɥɥɨɜ, ɜɵɫɨɤɨɣ ɡɟɪɧɢɫɬɨɫɬɢ ɛɪɭɫɤɨɜ, ɜɹɡɤɢɯ ɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɹɯ ɢ ɝɪɭɛɨɣ ɩɪɟɞɜɚɪɢɬɟɥɶɧɨɣ ɨɛɪɚɛɨɬɤɟ ɲɥɢɮɭɟɦɵɯ ɞɟɬɚɥɟɣ.
ɉɪɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ ɧɚɢɛɨɥɟɟ ɲɢɪɨɤɨ ɩɪɢɦɟɧɹɟɦɨɣ ɫɦɚɡɵɜɚɸ- ɳɟ-ɨɯɥɚɠɞɚɸɳɟɣ ɠɢɞɤɨɫɬɶɸ ɹɜɥɹɟɬɫɹ ɤɟɪɨɫɢɧ ɫ ɞɨɛɚɜɥɟɧɢɟɦ ɧɟɛɨɥɶɲɢɯ ɤɨɥɢɱɟɫɬɜ (ɞɨ 10–15 %) ɥɟɝɤɨɝɨ ɦɢɧɟɪɚɥɶɧɨɝɨ ɦɚɫɥɚ, ɧɚɩɪɢɦɟɪ, ɜɟɪɟɬɟɧɧɨɝɨ ɦɚɫɥɚ 2 ɢɥɢ 3. ɉɪɢɦɟɧɹɸɬ ɬɚɤɠɟ ɥɟɝɤɢɟ ɦɢɧɟɪɚɥɶɧɵɟ ɦɚɫɥɚ – ɜɚɡɟɥɢɧɨɜɨɟ, ɫɨɥɹɪɨɜɨɟ ɢ ɞɪ.
ɉɪɨɞɨɥɠɢɬɟɥɶɧɨɫɬɶ ɨɩɟɪɚɰɢɢ ɨɬɞɟɥɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ ɩɪɢ ɞɥɢɧɟ ɞɟɬɚɥɢ, ɪɚɜɧɨɣ ɞɥɢɧɟ ɛɪɭɫɤɚ, ɧɟ ɩɪɟɜɵɲɚɟɬ 0,5–1 ɦɢɧ.
ɉɪɢɩɭɫɤ, ɫɧɢɦɚɟɦɵɣ ɩɪɢ ɨɬɞɟɥɨɱɧɨɦ ɲɥɢɮɨɜɚɧɢɢ, ɡɚɜɢɫɢɬ ɨɬ ɲɟɪɨɯɨɜɚɬɨɫɬɢ ɩɨɜɟɪɯɧɨɫɬɢ ɞɨ ɨɛɪɚɛɨɬɤɢ. ɉɨɫɥɟ ɲɥɢɮɨɜɚɧɢɹ ɫɧɢɦɚɟɦɵɣ ɩɪɢɩɭɫɤ ɧɟ ɩɪɟɜɵɲɚɟɬ 0,005–0,010 ɦɦ.
ɒɟɪɨɯɨɜɚɬɨɫɬɶ ɩɨɜɟɪɯɧɨɫɬɢ ɩɨɫɥɟ ɨɬɞɟɥɨɱɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ ɜ ɡɚɜɢɫɢɦɨɫɬɢ ɨɬ ɲɟɪɨɯɨɜɚɬɨɫɬɢ, ɩɨɥɭɱɟɧɧɨɣ ɜ ɪɟɡɭɥɶɬɚɬɟ ɩɪɟɞɜɚɪɢɬɟɥɶɧɨɣ ɨɛɪɚɛɨɬɤɢ ɢ ɡɟɪɧɢɫɬɨɫɬɢ ɛɪɭɫɤɨɜ, ɞɨɫɬɢɝɚɟɬ 11–12 ɤɥɚɫɫɨɜ ɩɨ ȽɈɋɌ 2789 (ɩɚɪɚɦɟɬɪ ɲɟɪɨɯɨɜɚɬɨɫɬɢ Ra = 0,04–0,16 ɦɤɦ, ɩɚɪɚɦɟɬɪ Rz = 0,2–0,8 ɦɤɦ).
11.3. Ɉɛɳɢɟ ɫɜɟɞɟɧɢɹ ɨ ɩɨɥɢɪɨɜɚɧɢɢ
ɉɨɥɢɪɨɜɚɧɢɟ ɦɟɬɚɥɥɨɜ ɩɪɢɦɟɧɹɸɬ ɞɥɹ ɩɨɥɭɱɟɧɢɹ ɱɢɫɬɨɣ ɢ ɝɥɚɞɤɨɣ ɩɨɜɟɪɯɧɨɫɬɢ. ɉɟɪɟɞ ɩɨɥɢɪɨɜɚɧɢɟɦ ɨɛɵɱɧɨ ɩɪɨɢɡɜɨɞɢɬɫɹ ɲɥɢɮɨɜɚɧɢɟ ɭɩɪɭɝɢɦɢ ɤɪɭɝɚɦɢ ɢ ɥɟɧɬɚɦɢ, ɧɚ ɪɚɛɨɱɢɟ ɩɨɜɟɪɯɧɨɫɬɢ ɤɨɬɨɪɵɯ ɧɚɤɥɟɢɜɚɸɬɫɹ ɬɜɟɪɞɵɟ ɚɛɪɚɡɢɜɵ.
ɒɥɢɮɨɜɚɧɢɟ ɭɩɪɭɝɢɦɢ ɤɪɭɝɚɦɢ ɨɛɟɫɩɟɱɢɜɚɟɬ ɭɦɟɧɶɲɟɧɢɟ ɲɟɪɨɯɨɜɚɬɨɫɬɢ ɩɨɜɟɪɯɧɨɫɬɢ; ɮɨɪɦɚ ɢ ɪɚɡɦɟɪɵ ɞɟɬɚɥɢ ɩɪɢ ɷɬɨɦ ɜɢɞɟ ɲɥɢɮɨɜɚɧɢɹ ɨɛɵɱɧɨ ɹɜɥɹɸɬɫɹ ɜɬɨɪɨɫɬɟɩɟɧɧɵɦɢ ɢ ɤɨɧɬɪɨɥɸ ɧɟ ɩɨɞɜɟɪɝɚɸɬɫɹ. ɗɬɨɬ ɜɢɞ ɲɥɢɮɨɜɚɧɢɹ ɩɨɥɭɱɢɥ ɧɚɡɜɚɧɢɟ ɞɟɤɨɪɚɬɢɜɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ.
ɉɨɥɢɪɨɜɚɧɢɟ ɦɟɬɚɥɥɨɜ ɩɪɨɢɡɜɨɞɢɬɫɹ ɝɥɚɜɧɵɦ ɨɛɪɚɡɨɦ ɦɹɝɤɢɦɢ ɚɛɪɚɡɢɜɚɦɢ, ɤɨɬɨɪɵɟ ɧɚɧɨɫɹɬɫɹ ɬɚɤɠɟ ɧɚ ɭɩɪɭɝɢɟ ɤɪɭɝɢ ɢ ɥɟɧɬɵ.
ɉɨɞɪɨɛɧɨɟ ɨɩɢɫɚɧɢɟ ɪɟɠɭɳɟɝɨ ɢɧɫɬɪɭɦɟɧɬɚ ɞɥɹ ɩɨɥɢɪɨɜɚɧɢɹ ɢ ɞɟɤɨɪɚɬɢɜɧɨɝɨ ɲɥɢɮɨɜɚɧɢɹ, ɨɫɧɚɫɬɤɢ, ɚɛɪɚɡɢɜɨɜ ɢ ɩɚɫɬ, ɩɪɢɦɟɧɹɟɦɵɯ ɩɪɢ ɷɬɢɯ ɜɢɞɚɯ ɦɟɯɚɧɢɱɟɫɤɨɣ ɨɛɪɚɛɨɬɤɢ ɩɨɜɟɪɯɧɨɫɬɟɣ ɦɟɬɚɥɥɢɱɟɫɤɢɯ ɞɟɬɚɥɟɣ, ɞɚɧɨ ɜ ɫɩɪɚɜɨɱɧɢɤɟ [2] ɢ ɪɚɛɨɬɚɯ [3, 4].
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11.4. Ɋɟɠɢɦɵ ɩɨɥɢɪɨɜɚɧɢɹ
ɋɤɨɪɨɫɬɢ ɩɨɥɢɪɨɜɚɧɢɹ ɢ ɲɥɢɮɨɜɚɧɢɹ ɭɩɪɭɝɢɦɢ ɤɪɭɝɚɦɢ ɜɵɛɢɪɚɸɬ ɜ ɡɚɜɢɫɢɦɨɫɬɢ ɨɬ ɜɢɞɚ ɨɛɪɚɛɚɬɵɜɚɟɦɨɝɨ ɦɟɬɚɥɥɚ ɫɨɝɥɚɫɧɨ ɬɚɛɥɢɰɟ 11.1.
ɉɪɨɢɡɜɨɞɢɬɟɥɶɧɨɫɬɶ ɩɨɥɢɪɨɜɚɧɢɹ ɡɚɜɢɫɢɬ ɨɬ ɞɚɜɥɟɧɢɹ ɞɟɬɚɥɢ ɧɚ ɤɪɭɝ. Ⱦɥɹ ɡɚɤɚɥɟɧɧɨɣ ɫɬɚɥɢ ɞɚɜɥɟɧɢɟ ɤɨɥɟɛɥɟɬɫɹ ɨɬ 2 ɞɨ 2,5 ɤȽ, ɞɥɹ ɧɟɡɚɤɚɥɟɧɧɨɣ ɫɬɚɥɢ – ɨɬ 2,5 ɞɨ 5 ɤȽ.
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Ɍɚɛɥɢɰɚ 11.1 |
ɋɤɨɪɨɫɬɢ ɩɨɥɢɪɨɜɚɧɢɹ ɢ ɲɥɢɮɨɜɚɧɢɹ ɭɩɪɭɝɢɦɢ ɤɪɭɝɚɦɢ |
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Ɉɤɪɭɠɧɚɹ ɫɤɨɪɨɫɬɶ, ɦ/ɫ |
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Ɉɛɪɚɛɚɬɵɜɚɟɦɵɣ ɦɟɬɚɥɥ |
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ɲɥɢɮɨɜɚɧɢɹ |
ɩɨɥɢɪɨɜɚɧɢɹ |
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ɋɬɚɥɶ, ɱɭɝɭɧ, ɧɢɤɟɥɶ, ɯɪɨɦ |
18–30 |
30–35 |
Ɇɟɞɶ, ɥɚɬɭɧɶ, ɬɨɦɩɚɤ, ɛɪɨɧɡɚ, ɫɟɪɟɛɪɨ |
14–18 |
22–30 |
ɐɢɧɤ, ɨɥɨɜɨ, ɫɜɢɧɟɰ, ɚɥɸɦɢɧɢɣ ɢ ɢɯ ɫɩɥɚɜɵ |
10–14 |
18–25 |
ɉɪɢɦɟɱɚɧɢɟ
ɋɤɨɪɨɫɬɶ ɡɚɜɢɫɢɬ ɨɬ ɡɟɪɧɢɫɬɨɫɬɢ ɩɪɢɦɟɧɹɟɦɨɝɨ ɚɛɪɚɡɢɜɚ: ɱɟɦ ɦɟɥɶɱɟ ɡɟɪɧɨ, ɬɟɦ ɜɵɲɟ ɨɤɪɭɠɧɵɟ ɫɤɨɪɨɫɬɢ ɤɪɭɝɨɜ.
ɇɚ ɬɚɤɢɯ ɞɟɬɚɥɹɯ, ɤɚɤ ɤɥɸɱɢ, ɨɬɜɟɪɬɤɢ, ɦɨɥɨɬɤɢ, ɡɭɛɢɥɚ, ɨɩɟɪɚɰɢɹ ɨɬɞɟɥɤɢ ɩɪɨɢɡɜɨɞɢɬɫɹ ɜ ɫɥɟɞɭɸɳɢɟ ɩɟɪɟɯɨɞɵ:
1)ɨɛɞɢɪɤɚ;
2)ɲɥɢɮɨɜɚɧɢɟ ɜɫɭɯɭɸ;
3)ɲɥɢɮɨɜɚɧɢɟ ɫ ɡɚɫɚɥɤɨɣ ɪɚɛɨɱɟɣ ɩɨɜɟɪɯɧɨɫɬɢ ɤɪɭɝɚ.
Ɉɛɞɢɪɤɚ ɱɚɫɬɨ ɩɪɨɢɡɜɨɞɢɬɫɹ ɧɚ ɠɟɫɬɤɢɯ ɚɛɪɚɡɢɜɧɵɯ ɤɪɭɝɚɯ. ȼ ɧɟɤɨɬɨɪɵɯ ɫɥɭɱɚɹɯ ɨɛɞɢɪɨɱɧɨɟ ɲɥɢɮɨɜɚɧɢɟ ɨɫɭɳɟɫɬɜɥɹɟɬɫɹ ɫ ɞɜɭɦɹ ɩɟɪɟɯɨɞɚɦɢ ɫ ɡɚɫɚɥɤɨɣ ɤɪɭɝɚ. ɒɥɢɮɨɜɚɧɢɟ ɫ ɡɚɫɚɥɤɨɣ ɤɪɭɝɚ ɡɧɚɱɢɬɟɥɶɧɨ ɭɥɭɱɲɚɟɬ ɱɢɫɬɨɬɭ ɲɥɢɮɭɟɦɨɣ ɩɨɜɟɪɯɧɨɫɬɢ, ɫɧɢɠɚɹ ɟɟ ɲɟɪɨɯɨɜɚɬɨɫɬɶ ɩɪɚɤɬɢɱɟɫɤɢ ɜ 2 ɪɚɡɚ.
ɉɨɞ ɩɨɤɪɵɬɢɹ ɫɬɚɥɶɧɵɟ ɝɨɪɹɱɟɤɚɬɚɧɵɟ ɞɟɬɚɥɢ ɨɬɞɟɥɵɜɚɸɬ ɲɥɢɮɨɜɚɧɢɟɦ ɜɫɭɯɭɸ ɜ ɞɜɟ ɨɩɟɪɚɰɢɢ:
1)ɤɪɭɝɚɦɢ ɡɟɪɧɢɫɬɨɫɬɶɸ 120–140;
2)ɤɪɭɝɚɦɢ ɡɟɪɧɢɫɬɨɫɬɶɸ 170–220.
ȼɨɡɦɨɠɧɚ ɬɚɤɠɟ ɨɬɞɟɥɤɚ ɬɚɤɢɯ ɩɨɜɟɪɯɧɨɫɬɟɣ ɜ ɨɞɧɭ ɢɥɢ ɞɜɟ ɨɩɟɪɚɰɢɢ:
1)ɲɥɢɮɨɜɚɧɢɟ ɫ ɡɚɫɚɥɤɨɣ ɤɪɭɝɚɦɢ ɡɟɪɧɢɫɬɨɫɬɶɸ 170–200;
2)ɲɥɢɮɨɜɚɧɢɟ ɫ ɡɚɫɚɥɤɨɣ ɤɪɭɝɚɦɢ ɡɟɪɧɢɫɬɨɫɬɶɸ 230–235.
ɉɨɫɥɟ ɩɨɤɪɵɬɢɣ ɫɬɚɥɶɧɵɟ ɞɟɬɚɥɢ ɩɨɥɢɪɭɸɬ ɜ ɨɞɢɧ ɢɥɢ ɞɜɚ ɩɪɨɯɨɞɚ ɤɪɨɤɭɫɧɨɣ, ɢɡɜɟɫɬɤɨɜɨɣ ɢɥɢ ɯɪɨɦɨɜɨɣ ɩɚɫɬɚɦɢ.
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11.5. ɒɥɢɮɨɜɚɧɢɟ ɲɤɭɪɤɨɣ
ɒɤɭɪɤɨɣ ɲɥɢɮɭɸɬ ɲɟɣɤɢ ɤɨɥɟɧɱɚɬɵɯ ɢ ɪɚɫɩɪɟɞɟɥɢɬɟɥɶɧɵɯ ɜɚɥɨɜ, ɤɨɥɶɰɚ ɩɨɞɲɢɩɧɢɤɨɜ ɢ ɬ. ɞ.
ɉɪɨɞɨɥɠɢɬɟɥɶɧɨɫɬɶ ɲɥɢɮɨɜɚɧɢɹ ɤɨɥɟɧɱɚɬɨɝɨ ɜɚɥɚ ɨɛɵɱɧɨ ɧɟ ɩɪɟɜɵɲɚɟɬ 1,5 ɦɢɧ, ɨɤɪɭɠɧɚɹ ɫɤɨɪɨɫɬɶ ɫɨɫɬɚɜɥɹɟɬ 32–35 ɦ/ɦɢɧ, ɩɪɨɞɨɥɶɧɚɹ ɫɤɨɪɨɫɬɶ ɞɟɬɚɥɢ ɢɥɢ ɛɪɭɫɤɚ ɫɨɫɬɚɜɥɹɟɬ 0,39 ɦ/ɦɢɧ, ɡɟɪɧɢɫɬɨɫɬɶ ɲɤɭɪɤɢ ɪɚɜɧɚ 150–250.
ɒɟɪɨɯɨɜɚɬɨɫɬɶ ɩɨɜɟɪɯɧɨɫɬɢ ɞɟɬɚɥɢ ɩɨɫɥɟ ɨɛɪɚɛɨɬɤɢ ɲɤɭɪɤɨɣ ɦɨɠɟɬ ɞɨɫɬɢɝɚɬɶ 9–10 ɤɥɚɫɫɨɜ ɩɨ ȽɈɋɌ 2789 (ɩɚɪɚɦɟɬɪ Ra = 0,16–0,63 ɦɤɦ, ɩɚɪɚɦɟɬɪ ɲɟɪɨɯɨɜɚɬɨɫɬɢ Rz = 0,8–3,2 ɦɤɦ).
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12. ɈȻɊȺȻɈɌɄȺ ɊȿɁɖȻɈȼɕɏ ɉɈȼȿɊɏɇɈɋɌȿɃ
12.1. Ɉɫɧɨɜɧɵɟ ɬɢɩɵ ɪɟɡɶɛɨɧɚɪɟɡɧɵɯ ɢɧɫɬɪɭɦɟɧɬɨɜ
ɂɡɜɟɫɬɧɵ ɫɥɟɞɭɸɳɢɟ ɬɢɩɵ ɪɟɡɶɛɨɧɚɪɟɡɧɵɯ ɢɧɫɬɪɭɦɟɧɬɨɜ:
1)ɪɟɡɶɛɨɜɵɟ ɪɟɡɰɵ (ɫɬɟɪɠɧɟɜɵɟ, ɩɪɢɡɦɚɬɢɱɟɫɤɢɟ ɢ ɞɢɫɤɨɜɵɟ);
2)ɪɟɡɶɛɨɜɵɟ ɝɪɟɛɟɧɤɢ (ɫɬɟɪɠɧɟɜɵɟ, ɩɪɢɡɦɚɬɢɱɟɫɤɢɟ, ɤɪɭɝɥɵɟ ɫ ɤɨɥɶɰɟɜɨɣ ɢɥɢ ɜɢɧɬɨɜɨɣ ɧɚɪɟɡɤɨɣ);
3)ɦɟɬɱɢɤɢ (ɪɭɱɧɵɟ, ɦɚɲɢɧɧɵɟ, ɚɜɬɨɦɚɬɧɵɟ, ɛɟɫɤɚɧɚɜɨɱɧɵɟ, ɝɚɟɱɧɵɟ, ɩɥɚɲɟɱɧɵɟ, ɦɚɬɨɱɧɵɟ, ɪɟɝɭɥɢɪɭɟɦɵɟ ɢɥɢ ɫɛɨɪɧɵɟ);
4)ɩɥɚɲɤɢ (ɤɪɭɝɥɵɟ ɰɟɥɶɧɵɟ, ɩɪɭɠɢɧɹɳɢɟ, ɤɪɭɝɥɵɟ ɬɪɭɛɱɚɬɵɟ ɢɥɢ ɩɪɨɝɨɧɤɢ, ɤɪɭɝɥɵɟ ɞɥɹ ɤɨɧɢɱɟɫɤɨɣ ɪɟɡɶɛɵ, ɤɥɭɩɩɨɜɵɟ ɢɥɢ ɪɚɡɞɜɢɠɧɵɟ);
5)ɪɟɡɶɛɨɧɚɪɟɡɧɵɟ ɝɨɥɨɜɤɢ (ɧɟɜɪɚɳɚɸɳɢɟɫɹ, ɜɪɚɳɚɸɳɢɟɫɹ, ɜɪɚɳɚɸɳɢɟɫɹ ɚɜɬɨɦɚɬɧɵɟ, ɫɚɦɨɨɬɤɪɵɜɚɸɳɢɟɫɹ ɫ ɩɪɢɡɦɚɬɢɱɟɫɤɢɦɢ ɝɪɟɛɟɧɤɚɦɢ);
6)ɞɢɫɤɨɜɵɟ ɪɟɡɶɛɨɜɵɟ ɮɪɟɡɵ (ɫ ɫɢɦɦɟɬɪɢɱɧɵɦ ɢ ɧɟɫɢɦɦɟɬɪɢɱɧɵɦ ɩɪɨ-
ɮɢɥɟɦ);
7)ɝɪɟɛɟɧɱɚɬɵɟ ɪɟɡɶɛɨɜɵɟ ɮɪɟɡɵ (ɯɜɨɫɬɨɜɵɟ ɢ ɧɚɫɚɞɧɵɟ ɮɪɟɡɵ);
8)ɪɟɡɶɛɨɧɚɤɚɬɧɵɟ ɪɨɥɢɤɢ.
ɉɨɞɪɨɛɧɨɟ ɨɩɢɫɚɧɢɟ ɢɡɜɟɫɬɧɵɯ ɬɢɩɨɜ ɢ ɤɨɧɫɬɪɭɤɰɢɣ ɪɟɠɭɳɢɯ ɢɧɫɬɪɭɦɟɧɬɨɜ ɞɥɹ ɧɚɪɟɡɚɧɢɹ ɪɟɡɶɛɵ, ɚ ɬɚɤɠɟ ɢɯ ɝɟɨɦɟɬɪɢɱɟɫɤɢɯ ɩɚɪɚɦɟɬɪɨɜ ɩɪɢɜɟɞɟɧɨ ɜ ɫɩɪɚɜɨɱɧɢɤɟ [2] ɢ ɪɚɛɨɬɚɯ [3, 4].
12.2. Ɋɟɠɢɦɵ ɪɟɡɚɧɢɹ ɩɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ
Ɏɨɪɦɭɥɵ ɞɥɹ ɪɚɫɱɟɬɚ ɫɤɨɪɨɫɬɢ ɪɟɡɚɧɢɹ, ɤɪɭɬɹɳɟɝɨ ɦɨɦɟɧɬɚ ɢ ɷɮɮɟɤɬɢɜɧɨɣ ɦɨɳɧɨɫɬɢ ɩɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɚɜɬɨɦɚɬɧɵɦɢ, ɝɚɟɱɧɵɦɢ ɢ ɦɚɲɢɧɧɵɦɢ ɦɟɬɱɢɤɚɦɢ, ɤɪɭɝɥɵɦɢ ɩɥɚɲɤɚɦɢ, ɪɟɡɶɛɨɧɚɪɟɡɧɵɦɢ ɫɚɦɨɨɬɤɪɵɜɚɸɳɢɦɢɫɹ ɝɨɥɨɜɤɚɦɢ, ɪɟɡɶɛɨɜɵɦɢ ɪɟɡɰɚɦɢ ɢ ɝɪɟɛɟɧɱɚɬɵɦɢ ɪɟɡɶɛɨɜɵɦɢ ɮɪɟɡɚɦɢ ɩɪɢɜɟɞɟɧɵ ɜ ɬɚɛɥɢɰɟ 12.1.
ɉɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɪɟɡɶɛɨɜɵɦɢ ɝɨɥɨɜɤɚɦɢ ɫ ɪɟɡɰɚɦɢ, ɨɫɧɚɳɟɧɧɵɦɢ ɩɥɚɫɬɢɧɤɚɦɢ ɢɡ ɬɜɟɪɞɨɝɨ ɫɩɥɚɜɚ Ɍ15Ʉ6, ɪɟɤɨɦɟɧɞɭɟɬɫɹ ɩɪɢɦɟɧɹɬɶ ɫɤɨɪɨɫɬɢ ɪɟɡɚɧɢɹ X ɢ ɩɨɞɚɱɢ sz, ɩɪɢɜɟɞɟɧɧɵɟ ɜ ɬɚɛɥɢɰɟ 12.3. Ⱦɥɹ ɤɪɭɩɧɵɯ ɢ ɬɨɱɧɵɯ ɪɟɡɶɛ ɫɥɟɞɭɟɬ ɛɪɚɬɶ ɦéɧɶɲɢɟ ɡɧɚɱɟɧɢɹ sz, ɞɥɹ ɦɟɥɤɢɯ ɢ ɝɪɭɛɵɯ – ɛóɥɶɲɢɟ.
94
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Ɍɚɛɥɢɰɚ 12.1 |
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Ɏɨɪɦɭɥɵ ɞɥɹ ɜɵɱɢɫɥɟɧɢɹ ɫɤɨɪɨɫɬɢ ɪɟɡɚɧɢɹ X, ɤɪɭɬɹɳɟɝɨ ɦɨɦɟɧɬɚ M |
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ɢ ɷɮɮɟɤɬɢɜɧɨɣ ɦɨɳɧɨɫɬɢ Nɷ, ɡɚɬɪɚɱɢɜɚɟɦɨɣ ɩɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ |
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Ɍɢɩ ɪɟɠɭɳɟɝɨ |
Ɇɚɬɟɪɢɚɥ |
Ɉɛɪɚɛɚɬɵɜɚɟɦɵɣ |
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ɢɧɫɬɪɭɦɟɧɬɚ |
ɪɟɠɭɳɟɣ |
ɦɚɬɟɪɢɚɥ |
ɋɈɀ |
Ɏɨɪɦɭɥɚ ɞɥɹ X, ɦ/ɦɢɧ |
Ɏɨɪɦɭɥɚ ɞɥɹ M, ɤȽ ɫɦ |
Ɏɨɪɦɭɥɚ ɞɥɹ Nɷ, ɤȼɬ |
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ɱɚɫɬɢ |
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Ⱥɜɬɨɦɚɬɧɵɟ |
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45 |
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X |
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T 0,9 |
s0,5 |
M |
0,25 d |
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Nɷ |
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0,9 |
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ɇɭɪɤɚ |
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2 |
1,5 |
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ɝɚɟɱɧɵɟ ɦɟɬɱɢɤɢ |
Ɋ |
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ɋɬɚɥɶ |
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ɋɭɥɶɮɨɮɪɟɡɨɥ |
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41 |
d 1,2 |
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0,033 |
d 2,2 s |
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ɋɬɚɥɶ 45 |
ɋɭɥɶɮɨɮɪɟɡɨɥ |
X |
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53 d 1,2 |
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M |
0,41 d1,7 s1,5 |
Nɷ |
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0, 071 d1,9 s |
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Ƚɚɟɱɧɵɟ ɦɟɬɱɢɤɢ |
Ɋ |
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T 0,9 |
s0,5 |
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T 0,9 |
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ɋɢɥɭɦɢɧ |
Ʉɟɪɨɫɢɧ |
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20 d 1,2 |
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M |
0,22 d |
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1,5 |
Nɷ |
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0,014 d 2 s |
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T 0,8 |
s0,5 |
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T 0,8 |
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ɋɬɚɥɶ |
45 |
ɋɭɥɶɮɨɮɪɟɡɨɥ |
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64,8 d 1,2 |
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M |
2,7 d |
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1,5 |
Nɷ |
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0,57 d1,6 s |
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Ɇɚɲɢɧɧɵɟ |
Ɋ |
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T 0,9 |
s0,5 |
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T 0,9 |
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ɦɟɬɱɢɤɢ |
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ɑɭɝɭɧ, ɇȼ = 140 |
Ʉɟɪɨɫɢɧ |
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8,5 d 1,2 |
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1,3 d1,4 s1,5 |
Nɷ |
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0,04 d1,6 s0,6 |
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T 0,6 s 0,9 |
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T0,6 |
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Ʉɪɭɝɥɵɟ ɩɥɚɲɤɢ |
ɍ |
12 |
Ⱥ |
ɋɬɚɥɶ |
45 |
ɗɦɭɥɶɫɢɹ |
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2,7 d1,2 |
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1,1 |
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1,5 |
Nɷ |
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0,05 d1,3 s0,3 |
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T 0,5 s1,2 |
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T 0,5 |
s1,2 |
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1,1 |
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ɫɚɦɨɨɬɤɪɵɜɚɸɳɢɟɫɹ |
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ɋɬɚɥɶ |
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ɋɭɥɶɮɨɮɪɟɡɨɥ |
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7,4 d1,2 |
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1,5 |
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0,111 d1,3 s0,3 |
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Ɋɟɡɶɛɨɜɵɟ ɪɟɡɰɵ |
Ɋ |
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ɋɬɚɥɶ |
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ɋɭɥɶɮɨɮɪɟɡɨɥ |
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14,8 |
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(ɲɚɝ s 2 ɦɦ) |
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T 0,11 s0,3 sz0,3 |
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3
Ɉɤɨɧɱɚɧɢɟ ɬɚɛɥɢɰɵ 12.1
Ɍɢɩ ɪɟɠɭɳɟɝɨ |
Ɇɚɬɟɪɢɚɥ |
Ɉɛɪɚɛɚɬɵɜɚɟɦɵɣ |
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X, |
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M, |
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ɪɟɠɭɳɟɣ |
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ɋɈɀ |
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Ɏɨɪɦɭɥɚ ɞɥɹ Nɷ, ɤȼɬ |
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ɢɧɫɬɪɭɦɟɧɬɚ |
ɦɚɬɟɪɢɚɥ |
Ɏɨɪɦɭɥɚ ɞɥɹ |
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ɦɢɧ |
Ɏɨɪɦɭɥɚ ɞɥɹ |
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ɤȽ ɫɦ |
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ɪɟɡɰɵ ɱɟɪɧɨɜɵɟ |
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ɋɬɚɥɶ |
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ɋɭɥɶɮɨɮɪɟɡɨɥ |
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ɦɦ |
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Ɋɟɡɶɛɨɜɵɟ |
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ɪɟɡɰɵ ɱɢɫɬɨɜɵɟ |
Ɋ |
ɋɬɚɥɶ |
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ɋɭɥɶɮɨɮɪɟɡɨɥ |
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41,8 |
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ɦɦ |
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ɋɬɚɥɶ |
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ɗɦɭɥɶɫɢɹ |
X |
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257 |
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T s sz |
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ɮɪɟɡɵ ɝɪɭɩɩɨɜɵɟ |
Ɋ |
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(D = 90 |
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X |
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T s2 |
sz0,5 |
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– |
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– |
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ɦɦ |
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ɑɭɝɭɧ ɤɨɜɤɢɣ |
ɗɦɭɥɶɫɢɹ |
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24500 |
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ɍɫɥɨɜɧɵɟ ɨɛɨɡɧɚɱɟɧɢɹ: ɋɈɀ – ɫɦɚɡɵɜɚɸɳɟ-ɨɯɥɚɠɞɚɸɳɚɹ ɠɢɞɤɨɫɬɶ;
T – ɫɬɨɣɤɨɫɬɶ ɪɟɠɭɳɢɯ ɢɧɫɬɪɭɦɟɧɬɨɜ, ɦɢɧ (ɪɚɫɱɟɬɧɵɟ ɮɨɪɦɭɥɵ ɞɚɧɵ ɜ ɬɚɛɥ. 12.4); s – ɨɛɨɪɨɬɧɚɹ ɩɨɞɚɱɚ, ɨɛ/ɦɢɧ;
sz – ɩɨɞɚɱɚ ɧɚ ɨɞɢɧ ɡɭɛ, ɦɦ/ɡɭɛ;
d – ɞɢɚɦɟɬɪ ɡɚɝɨɬɨɜɤɢ ɩɨɞ ɧɚɪɟɡɚɧɢɟ ɪɟɡɶɛɵ, ɦɦ.
ɉɪɢɦɟɱɚɧɢɹ:
1.ȼ ɮɨɪɦɭɥɚɯ ɤɪɭɬɹɳɟɝɨ ɦɨɦɟɧɬɚ ɩɪɢɜɟɞɟɧɵ ɱɢɫɥɨɜɵɟ ɤɨɷɮɮɢɰɢɟɧɬɵ ɩɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɧɟɡɚɬɭɩɢɜɲɢɦɢɫɹ ɦɟɬɱɢɤɚɦɢ ɢ ɩɥɚɲɤɚɦɢ.
Ʉɤɨɧɰɭ ɪɚɛɨɬɵ, ɤɨɝɞɚ ɢɡɧɨɫ ɢɧɫɬɪɭɦɟɧɬɚ ɞɨɫɬɢɝɚɟɬ ɩɪɟɞɟɥɶɧɨɣ ɜɟɥɢɱɢɧɵ, ɤɪɭɬɹɳɢɟ ɦɨɦɟɧɬɵ ɦɨɝɭɬ ɭɜɟɥɢɱɢɜɚɬɶɫɹ ɞɥɹ ɦɟɬɱɢɤɨɜ ɜ 2,5–3 ɪɚɡɚ, ɞɥɹ ɩɥɚɲɟɤ – ɜ 1,5–2 ɪɚɡɚ.
2.ȿɫɥɢ ɦɚɬɟɪɢɚɥ ɡɚɝɨɬɨɜɤɢ ɧɟ ɫɨɨɬɜɟɬɫɬɜɭɟɬ ɬɚɛɥɢɱɧɨɦɭ, ɬɨ ɡɧɚɱɟɧɢɹ X, M ɢ Nɷ, ɜɵɱɢɫɥɟɧɧɵɟ ɩɨ ɮɨɪɦɭɥɚɦ ɬɚɛɥɢɰɵ 12.1, ɧɟɨɛɯɨɞɢɦɨ ɭɦɧɨɠɢɬɶ ɧɚ ɫɨɨɬɜɟɬɫɬɜɭɸɳɢɟ ɢɦ ɩɨɩɪɚɜɨɱɧɵɟ ɤɨɷɮɮɢɰɢɟɧɬɵ, ɭɤɚɡɚɧɧɵɟ ɜ ɬɚɛɥɢɰɟ 12.2.
4
Ɍɚɛɥɢɰɚ 12.2 ɉɨɩɪɚɜɨɱɧɵɟ ɤɨɷɮɮɢɰɢɟɧɬɵ, ɭɱɢɬɵɜɚɸɳɢɟ ɜɥɢɹɧɢɟ ɨɛɪɚɛɚɬɵɜɚɟɦɨɝɨ
ɦɚɬɟɪɢɚɥɚ ɧɚ ɪɟɠɢɦɵ ɧɚɪɟɡɚɧɢɹ ɪɟɡɶɛɵ
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ɮɨɪɦɭɥɟɤɨɬɧɨɫɢɬɫɹ |
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Ɇɚɪɤɚ ɫɬɚɥɢ |
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ɑɭɝɭɧ |
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Ʉɨɷɮɮɢɰɢɟɧɬ |
12.1.ɬɚɛɥɩɨ |
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Ȼɪɨɧɡɚ |
Ʌɚɬɭɧɶ |
ɤɨɜɤɢɣɑɭɝɭɧ |
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Ɍɢɩ |
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ɇȼ120–140= |
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ɇȼ140–180= |
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ɇȼ180–220= |
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ɪɟɠɭɳɟɝɨ |
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10 |
20 |
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35 |
45 |
40ɏ |
20ɏɇ |
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ɢɧɫɬɪɭɦɟɧɬɚ |
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Ⱥɜɬɨɦɚɬɧɵɟ |
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X |
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0,7 |
1 |
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1 |
1 |
0,8 |
0,9 |
2 |
2 |
1,7 |
– |
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– |
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– |
ɝɚɟɱɧɵɟ |
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M |
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1,5 |
1,5 |
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1 |
1 |
1 |
1 |
– |
– |
0,7 |
– |
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– |
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– |
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ɦɟɬɱɢɤɢ ɇɭɪɤɚ |
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Nɷ |
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1 |
1,5 |
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1 |
1 |
0,8 |
0,9 |
– |
– |
1,2 |
– |
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– |
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– |
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X |
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0,7 |
1 |
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1 |
1 |
0,8 |
0,9 |
2 |
2 |
1,7 |
– |
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– |
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– |
Ƚɚɟɱɧɵɟ |
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M |
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1,3 |
1,3 |
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1 |
1 |
1 |
1 |
– |
– |
0,7 |
– |
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– |
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– |
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ɦɟɬɱɢɤɢ |
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Nɷ |
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0,9 |
1,3 |
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1 |
1 |
0,8 |
0,9 |
– |
– |
1,2 |
– |
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– |
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– |
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X |
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0,7 |
1 |
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1 |
1 |
0,8 |
0,9 |
2 |
2 |
1,7 |
1 |
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0,7 |
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0,5 |
Ɇɚɲɢɧɧɵɟ |
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M |
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1,7 |
1,3 |
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1 |
1 |
1 |
1 |
– |
– |
0,8 |
1 |
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1,2 |
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1,5 |
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ɦɟɬɱɢɤɢ |
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Nɷ |
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0,9 |
1,3 |
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1 |
1 |
0,8 |
0,9 |
– |
– |
1,4 |
1 |
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0,9 |
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0,7 |
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X |
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0,6 |
0,7 |
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1 |
1 |
0,8 |
0,9 |
2 |
2 |
1,7 |
– |
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– |
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– |
Ʉɪɭɝɥɵɟ |
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M |
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1 |
1 |
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1 |
1 |
1,1 |
1,1 |
– |
– |
0,8 |
– |
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– |
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– |
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ɩɥɚɲɤɢ |
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Nɷ |
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0,6 |
0,7 |
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1 |
1 |
0,9 |
1 |
– |
– |
1,4 |
– |
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– |
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– |
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Ɋɟɡɶɛɨɧɚɪɟɡɧɵɟ |
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X |
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0,6 |
0,7 |
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1 |
1 |
0,8 |
0,9 |
2 |
2 |
1,7 |
– |
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– |
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– |
ɫɚɦɨɨɬɤɪɵɜɚɸɳɢɟɫɹ |
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M |
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0,7 |
0,8 |
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0,9 |
1 |
1,2 |
1,2 |
– |
– |
0,8 |
– |
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– |
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– |
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ɝɨɥɨɜɤɢ |
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Nɷ |
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0,4 |
0,6 |
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0,9 |
1 |
0,9 |
1,1 |
– |
– |
1,4 |
– |
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– |
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– |
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Ɋɟɡɶɛɨɜɵɟ ɮɪɟɡɵ |
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X |
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– |
– |
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1 |
1 |
0,5 |
0,7 |
– |
– |
2,5 |
– |
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– |
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– |
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ɝɪɭɩɩɨɜɵɟ |
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ɉɪɢɦɟɱɚɧɢɟ |
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ȼ ɬɟɯ ɫɥɭɱɚɹɯ, ɤɨɝɞɚ ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɲɩɢɧɞɟɥɹ ɢ ɦɨɳɧɨɫɬɶ ɫɬɚɧɤɚ ɧɟɞɨɫɬɚɬɨɱɧɵ, ɫɥɟɞɭɟɬ ɪɚɛɨɬɚɬɶ ɫ ɬɨɣ ɱɚɫɬɨɬɨɣ ɜɪɚɳɟɧɢɹ ɲɩɢɧɞɟɥɹ, ɩɪɢ ɤɨɬɨɪɨɣ ɦɨɳɧɨɫɬɶ ɫɬɚɧɤɚ ɢɫɩɨɥɶɡɭɟɬɫɹ ɩɨɥɧɨɫɬɶɸ.
Ɍɚɛɥɢɰɚ 12.3 Ɋɟɠɢɦɵ ɧɚɪɟɡɚɧɢɹ ɪɟɡɶɛɵ ɪɟɡɰɨɜɵɦɢ ɝɨɥɨɜɤɚɦɢ ɫ ɪɟɡɰɚɦɢ,
ɨɫɧɚɳɟɧɧɵɦɢ ɩɥɚɫɬɢɧɤɚɦɢ ɢɡ ɬɜɟɪɞɨɝɨ ɫɩɥɚɜɚ
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ɋɤɨɪɨɫɬɶ X, |
ɉɨɞɚɱɚ sz, |
Ɉɛɪɚɛɚɬɵɜɚɟɦɵɣ ɦɟɬɚɥɥ |
Ɋɟɡɶɛɚ |
ɦ/ɦɢɧ |
ɦɦ/ɡɭɛ; |
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ɋɬɚɥɢ ɬɜɟɪɞɨɫɬɶɸ HB < 200, ɱɭɝɭɧɵ |
ɧɚɪɭɠɧɚɹ |
300 |
0,8–1,1 |
ɋɬɚɥɢ ɬɜɟɪɞɨɫɬɶɸ HB 200 |
ɧɚɪɭɠɧɚɹ |
200 |
0,6–0,8 |
ɐɜɟɬɧɵɟ ɦɟɬɚɥɥɵ ɢ ɫɩɥɚɜɵ |
ɧɚɪɭɠɧɚɹ |
450 |
0,8–0,9 |
ɋɬɚɥɢ ɤɨɧɫɬɪɭɤɰɢɨɧɧɵɟ, ɥɟɝɢɪɨɜɚɧɧɵɟ, ɱɭɝɭɧɵ |
ɜɧɭɬɪɟɧɧɹɹ |
150 |
0,6–0,7 |
ɐɜɟɬɧɵɟ ɦɟɬɚɥɥɵ ɢ ɫɩɥɚɜɵ |
ɜɧɭɬɪɟɧɧɹɹ |
180 |
0,6–0,7 |
97
12.3. ȼɵɛɨɪ ɫɦɚɡɵɜɚɸɳɟ-ɨɯɥɚɠɞɚɸɳɢɯ ɠɢɞɤɨɫɬɟɣ
ɉɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɫɦɚɡɵɜɚɸɳɟ-ɨɯɥɚɠɞɚɸɳɢɟ ɠɢɞɤɨɫɬɢ ɩɪɢɦɟɧɹɸɬɫɹ ɨɛɹɡɚɬɟɥɶɧɨ. ɉɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɩɨ ɫɬɚɥɢ ɢ ɩɨ ɥɚɬɭɧɢ ɥɭɱɲɢɟ ɪɟɡɭɥɶɬɚɬɵ ɞɚɟɬ ɫɦɟɫɶ ɪɚɫɬɢɬɟɥɶɧɵɯ ɦɚɫɟɥ ɫ ɤɟɪɨɫɢɧɨɦ ɢɥɢ ɫɤɢɩɢɞɚɪɨɦ. ɉɨɱɬɢ ɪɚɜɧɨɰɟɧɧɵɟ ɪɟɡɭɥɶɬɚɬɵ ɞɚɟɬ ɫɭɥɶɮɨɮɪɟɡɨɥ.
ɇɟɫɤɨɥɶɤɨ ɯɭɞɲɢɟ ɪɟɡɭɥɶɬɚɬɵ ɩɨ ɱɢɫɬɨɬɟ ɢ ɬɨɱɧɨɫɬɢ ɧɚɪɟɡɚɟɦɨɣ ɪɟɡɶɛɵ ɞɚɟɬ 3–5%-ɧɵɣ ɪɚɫɬɜɨɪ ɷɦɭɥɶɫɨɥɚ ɜ ɜɨɞɟ. ɉɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɜ ɱɭɝɭɧɟ ɧɚ ɫɜɟɪɥɢɥɶɧɵɯ ɫɬɚɧɤɚɯ ɫɥɟɞɭɟɬ ɩɪɨɢɡɜɨɞɢɬɶ ɫɦɚɱɢɜɚɧɢɟ ɦɟɬɱɢɤɚ ɤɟɪɨɫɢɧɨɦ, ɚ ɩɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɧɚ ɦɧɨɝɨɲɩɢɧɞɟɥɶɧɵɯ ɚɝɪɟɝɚɬɧɵɯ ɫɬɚɧɤɚɯ – ɦɢɧɟɪɚɥɶɧɵɦ ɦɚɫɥɨɦ ɢɥɢ ɫɭɥɶɮɨɮɪɟɡɨɥɨɦ.
ɉɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɪɟɡɰɨɜɵɦɢ ɝɨɥɨɜɤɚɦɢ ɫ ɪɟɡɰɚɦɢ, ɨɫɧɚɳɟɧɧɵɦɢ ɩɥɚɫɬɢɧɤɚɦɢ ɢɡ ɬɜɟɪɞɨɝɨ ɫɩɥɚɜɚ (ɜɢɯɪɟɜɨɟ ɧɚɪɟɡɚɧɢɟ) ɨɯɥɚɠɞɟɧɢɟ ɫɦɚɡɵɜɚɸ- ɳɟ-ɨɯɥɚɠɞɚɸɳɢɦɢ ɠɢɞɤɨɫɬɹɦɢ ɧɟ ɩɪɢɦɟɧɹɟɬɫɹ.
12.4. Ɉɩɪɟɞɟɥɟɧɢɟ ɨɫɧɨɜɧɨɝɨ ɬɟɯɧɨɥɨɝɢɱɟɫɤɨɝɨ ɜɪɟɦɟɧɢ
Ɉɫɧɨɜɧɨɟ ɬɟɯɧɨɥɨɝɢɱɟɫɤɨɟ ɜɪɟɦɹ T0 (ɦɢɧ) ɩɪɢ ɧɚɪɟɡɚɧɢɢ ɪɟɡɶɛɵ ɨɩɪɟɞɟɥɹɟɬɫɹ ɩɨ ɮɨɪɦɭɥɚɦ, ɩɪɢɜɟɞɟɧɧɵɦ ɜ ɬɚɛɥɢɰɟ 12.4.
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Ɍɚɛɥɢɰɚ 12.4 |
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Ɏɨɪɦɭɥɵ ɨɫɧɨɜɧɨɝɨ ɬɟɯɧɨɥɨɝɢɱɟɫɤɨɝɨ ɜɪɟɦɟɧɢ T0 (ɦɢɧ) |
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ɢ ɜɪɟɦɟɧɢ (ɩɟɪɢɨɞɚ) ɫɬɨɣɤɨɫɬɢ T (ɦɢɧ) ɢɧɫɬɪɭɦɟɧɬɚ |
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ɇɚɢɦɟɧɨɜɚɧɢɟ |
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Ɏɨɪɦɭɥɚ ɞɥɹ T0 |
Ɏɨɪɦɭɥɚ ɞɥɹ T |
ɋɨɨɬɧɨɲɟɧɢɟ |
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ɦɟɠɞɭ T0 ɢ T |
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ɢɧɫɬɪɭɦɟɧɬɚ |
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Ɉɤɨɧɱɚɧɢɟ ɬɚɛɥɢɰɵ 12.4 |
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Ⱦɢɫɤɨɜɵɟ |
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ɉɪɢɧɹɬɵɟ ɨɛɨɡɧɚɱɟɧɢɹ:
Kɞ – ɤɨɥɢɱɟɫɬɜɨ ɧɚɪɟɡɚɧɧɵɯ ɞɟɬɚɥɟɣ, ɲɬ; l – ɞɥɢɧɚ ɧɚɪɟɡɚɧɧɨɣ ɪɟɡɶɛɵ, ɦɦ;
lɪ – ɞɥɢɧɚ ɪɚɛɨɱɟɣ ɱɚɫɬɢ ɢɧɫɬɪɭɦɟɧɬɚ, ɦɦ; l1 – ɜɪɟɡɚɧɢɟ, ɦɦ;
f – ɲɢɪɢɧɚ ɜɵɬɨɱɤɢ ɞɥɹ ɜɵɯɨɞɚ ɪɟɡɰɚ, ɦɦ;
i – ɱɢɫɥɨ ɩɨɜɬɨɪɧɵɯ ɩɪɨɯɨɞɨɜ ɪɟɡɶɛɨɜɨɝɨ ɪɟɡɰɚ; g – ɱɢɫɥɨ ɡɚɯɨɞɨɜ ɪɟɡɶɛɵ;
V – ɭɝɨɥ ɩɨɞɴɟɦɚ ɧɚɪɟɡɚɟɦɨɣ ɪɟɡɶɛɨɜɨɣ ɧɢɬɤɢ, ɝɪɚɞ; s – ɨɛɨɪɨɬɧɚɹ ɩɨɞɚɱɚ, ɦɦ/ɨɛ;
sɦ – ɦɢɧɭɬɧɚɹ ɩɨɞɚɱɚ, ɦɦ/ɦɢɧ;
n – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɢɧɫɬɪɭɦɟɧɬɚ ɩɪɢ ɪɚɛɨɱɟɦ ɯɨɞɟ, ɨɛ/ɦɢɧ; n0 – ɱɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɢɧɫɬɪɭɦɟɧɬɚ ɩɪɢ ɨɛɪɚɬɧɨɦ ɯɨɞɟ, ɨɛ/ɦɢɧ; S – ɲɚɝ ɧɚɪɟɡɚɟɦɨɣ ɪɟɡɶɛɵ, ɦɦ;
d – ɧɨɦɢɧɚɥɶɧɵɣ ɞɢɚɦɟɬɪ ɧɚɪɟɡɚɟɦɨɣ ɪɟɡɶɛɵ, ɦɦ.
*ɑɚɫɬɨɬɚ ɜɪɚɳɟɧɢɹ ɢɧɫɬɪɭɦɟɧɬɚ ɩɪɢ ɨɛɪɚɬɧɨɦ ɯɨɞɟ n0 = 1,25 ɨɛ/ɦɢɧ. **ȼɟɥɢɱɢɧɵ ɜɪɟɡɚɧɢɹ ɢ ɩɟɪɟɛɟɝɚ ɫɪɚɜɧɢɬɟɥɶɧɨ ɧɟɜɟɥɢɤɢ ɢ ɢɦɢ ɦɨɠɧɨ ɩɪɟɧɟɛɪɟɱɶ.
***ɍɪɚɜɧɟɧɢɹ ɞɚɧɵ ɞɥɹ ɫɥɭɱɚɹ ɧɚɪɟɡɚɧɢɹ ɪɟɡɶɛɵ ɡɚ ɨɞɢɧ ɩɪɨɯɨɞ.
ȼ ɮɨɪɦɭɥɚɯ ɬɚɛɥɢɰɵ 12.4 ɩɨɞ ɨɫɧɨɜɧɵɦ ɬɟɯɧɨɥɨɝɢɱɟɫɤɢɦ ɜɪɟɦɟɧɟɦ T0 ɩɨɧɢɦɚɟɬɫɹ ɫɭɦɦɚɪɧɚɹ ɩɪɨɞɨɥɠɢɬɟɥɶɧɨɫɬɶ ɧɟɩɨɫɪɟɞɫɬɜɟɧɧɨɣ ɪɚɛɨɬɵ ɧɚɢɛɨɥɟɟ ɧɚɝɪɭɠɟɧɧɨɝɨ ɡɭɛɚ ɢɧɫɬɪɭɦɟɧɬɚ, ɜɤɥɸɱɚɹ ɨɛɪɚɬɧɵɟ ɯɨɞɵ.
ɉɨɞ ɜɪɟɦɟɧɟɦ ɫɬɨɣɤɨɫɬɢ ɢɥɢ ɩɟɪɢɨɞɨɦ ɫɬɨɣɤɨɫɬɢ T ɩɨɧɢɦɚɟɬɫɹ ɫɪɟɞɧɟɟ ɡɧɚɱɟɧɢɟ ɫɭɦɦɚɪɧɨɣ ɩɪɨɞɨɥɠɢɬɟɥɶɧɨɫɬɢ ɜɫɟɯ ɪɚɛɨɱɢɯ ɰɢɤɥɨɜ ɧɚɢɛɨɥɟɟ ɧɚɝɪɭɠɟɧɧɨɝɨɡɭɛɚɢɧɫɬɪɭɦɟɧɬɚɛɟɡɭɱɟɬɚɜɪɟɦɟɧɢ, ɡɚɬɪɚɱɢɜɚɟɦɨɝɨɧɚɨɛɪɚɬɧɵɟɯɨɞɵ.
ɑɢɫɥɨ ɩɨɜɬɨɪɧɵɯ ɩɪɨɯɨɞɨɜ ɪɟɡɶɛɨɜɨɝɨ ɪɟɡɰɚ i ɡɚɜɢɫɢɬ ɨɬ ɜɢɞɚ ɪɟɡɶɛɵ (ɦɟɬɪɢɱɟɫɤɚɹ, ɬɪɭɛɧɚɹ, ɬɪɚɩɟɰɢɢɞɚɥɶɧɚɹ, ɩɪɹɦɨɭɝɨɥɶɧɚɹ) ɢ ɨɩɪɟɞɟɥɹɟɬɫɹ ɩɨ ɬɚɛɥ., ɩɪɢɜɟɞɟɧɧɵɦ ɜ ɫɩɪɚɜɨɱɧɢɤɟ [2] ɢ ɪɚɛɨɬɚɯ [3, 4].
99
13.ɁɍȻɈɇȺɊȿɁȺɇɂȿ
13.1.Ɉɫɧɨɜɧɵɟ ɬɢɩɵ ɡɭɛɨɪɟɡɧɵɯ ɢɧɫɬɪɭɦɟɧɬɨɜ
ɇɚɪɟɡɚɧɢɟ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɩɪɨɢɡɜɨɞɢɬɫɹ ɬɪɟɦɹ ɦɟɬɨɞɚɦɢ:
1)ɤɨɩɢɪɨɜɚɧɢɟɦ (ɮɚɫɨɧɧɵɦ ɮɪɟɡɟɪɨɜɚɧɢɟɦ);
2)ɨɛɤɚɬɤɨɣ (ɨɝɢɛɚɧɢɟɦ);
3)ɫɦɟɲɚɧɧɵɦ, ɤɨɝɞɚ ɨɞɧɚ ɱɚɫɬɶ ɩɪɨɮɢɥɹ ɡɭɛɱɚɬɨɝɨ ɤɨɥɟɫɚ ɨɛɪɚɛɚɬɵɜɚɟɬɫɹ ɨɛɤɚɬɤɨɣ, ɚ ɞɪɭɝɚɹ ɱɚɫɬɶ ɬɨɝɨ ɠɟ ɩɪɨɮɢɥɹ – ɤɨɩɢɪɨɜɚɧɢɟɦ.
ɂɡɜɟɫɬɧɵ ɫɥɟɞɭɸɳɢɟ ɬɢɩɵ ɡɭɛɨɪɟɡɧɵɯ ɢɧɫɬɪɭɦɟɧɬɨɜ:
1)ɞɢɫɤɨɜɵɟ ɦɨɞɭɥɶɧɵɟ ɮɪɟɡɵ – ɩɪɟɞɧɚɡɧɚɱɟɧɵ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɧɟɜɵɫɨɤɨɣ ɬɨɱɧɨɫɬɢ ɩɨ ɦɟɬɨɞɭ ɤɨɩɢɪɨɜɚɧɢɹ;
2)ɩɚɥɶɰɟɜɵɟ ɦɨɞɭɥɶɧɵɟ ɮɪɟɡɵ (ɱɟɪɧɨɜɵɟ ɢ ɱɢɫɬɨɜɵɟ) – ɩɪɟɞɧɚɡɧɚɱɟɧɵ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɬɨɱɧɵɯ ɤɨɫɨɡɭɛɵɯ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɦɨɞɭɥɹ 20 ɦɦ ɢ ɜɵɲɟ, ɚ ɬɚɤɠɟ ɲɟɜɪɨɧɧɵɯ ɤɨɥɟɫ ɩɨ ɦɟɬɨɞɭ ɤɨɩɢɪɨɜɚɧɢɹ;
3)ɝɪɟɛɟɧɤɢ ɡɭɛɨɪɟɡɧɵɟ ɩɪɹɦɨɡɭɛɵɟ (ɱɟɪɧɨɜɵɟ, ɱɢɫɬɨɜɵɟ, ɲɥɢɮɨɜɨɱɧɵɟ) –
ɩɪɢɦɟɧɹɸɬɫɹ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɩɪɹɦɨɡɭɛɵɯ ɢ ɤɨɫɨɡɭɛɵɯ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɦɨɞɭɥɟɦ ɞɨ 60 ɦɦ ɢ ɞɢɚɦɟɬɪɨɦ ɞɨ 12 000 ɦɦ ɩɨ ɦɟɬɨɞɭ ɨɛɤɚɬɤɢ;
4)ɝɪɟɛɟɧɤɢ ɡɭɛɨɪɟɡɧɵɟ ɤɨɫɨɡɭɛɵɟ (ɱɟɪɧɨɜɵɟ, ɱɢɫɬɨɜɵɟ, ɲɥɢɮɨɜɨɱɧɵɟ) –
ɩɪɢɦɟɧɹɸɬɫɹ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɲɟɜɪɨɧɧɵɯ ɤɨɥɟɫ ɦɨɞɭɥɟɦ 3…24 ɦɦ ɧɚɪɭɠɧɨɝɨ ɡɚɰɟɩɥɟɧɢɹ ɩɨ ɦɟɬɨɞɭ ɨɛɤɚɬɤɢ;
5)ɱɟɪɜɹɱɧɵɟ ɦɨɞɭɥɶɧɵɟ ɮɪɟɡɵ (ɱɟɪɧɨɜɵɟ, ɱɢɫɬɨɜɵɟ, ɩɨɜɵɲɟɧɧɨɣ ɬɨɱɧɨɫɬɢ) – ɩɪɢɦɟɧɹɸɬɫɹ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɰɢɥɢɧɞɪɢɱɟɫɤɢɯ ɩɪɹɦɨɡɭɛɵɯ ɢ ɤɨɫɨɡɭɛɵɯ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɩɨ ɦɟɬɨɞɭ ɨɛɤɚɬɤɢ;
6)ɱɟɪɜɹɱɧɵɟ ɮɪɟɡɵ ɞɥɹ ɧɚɪɟɡɚɧɢɹ ɱɟɪɜɹɱɧɵɯ ɤɨɥɟɫ (ɚɪɯɢɦɟɞɨɜɵ, ɷɜɨɥɶ-
ɜɟɧɬɧɵɟ, ɫ ɩɪɹɦɨɭɝɨɥɶɧɵɦ ɩɪɨɮɢɥɟɦ ɜ ɩɪɨɞɨɥɶɧɨɦ ɫɟɱɟɧɢɢ) – ɩɪɢɦɟɧɹɸɬɫɹ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɱɟɪɜɹɱɧɵɯ ɤɨɥɟɫ, ɪɚɛɨɬɚɸɳɢɯ ɜ ɡɚɰɟɩɥɟɧɢɢ ɫ ɨɞɧɢɦ ɢɡ ɬɪɟɯ ɬɢɩɨɜ ɱɟɪɜɹɤɨɜ (ɱɟɪɜɹɤ ɚɪɯɢɦɟɞɨɜ, ɱɟɪɜɹɤ ɷɜɨɥɶɜɟɧɬɧɵɣ, ɱɟɪɜɹɤ ɫ ɩɪɹɦɨɭɝɨɥɶɧɵɦ ɩɪɨɮɢɥɟɦ ɜ ɧɨɪɦɚɥɶɧɨɦ ɫɟɱɟɧɢɢ);
7)ɞɨɥɛɹɤɢ ɡɭɛɨɪɟɡɧɵɟ (ɞɢɫɤɨɜɵɟ, ɱɚɲɟɱɧɵɟ, ɜɬɭɥɨɱɧɵɟ, ɯɜɨɫɬɨɜɵɟ) – ɩɪɟɞɧɚɡɧɚɱɟɧɵ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɰɢɥɢɧɞɪɢɱɟɫɤɢɯ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɫ ɩɪɹɦɵɦɢ ɢ ɤɨɫɵɦɢ ɡɭɛɰɚɦɢ ɜɧɭɬɪɟɧɧɟɝɨ ɢ ɧɚɪɭɠɧɨɝɨ ɡɚɰɟɩɥɟɧɢɹ, ɚ ɬɚɤɠɟ ɲɟɜɪɨɧɧɵɯ ɤɨɥɟɫ. Ⱦɨɥɛɹɤɢ ɦɨɝɭɬ ɛɵɬɶ ɨɛɞɢɪɨɱɧɵɦɢ (ɞɥɹ ɩɪɟɞɜɚɪɢɬɟɥɶɧɨɣ ɨɛɪɚɛɨɬɤɢ ɩɨɞ ɱɢɫɬɨɜɨɟ ɞɨɥɛɥɟɧɢɟ ɢɥɢ ɲɥɢɮɨɜɚɧɢɟ), ɱɢɫɬɨɜɵɦɢ ɤɥɚɫɫɚ Ⱥ ɢ ɱɢɫɬɨɜɵɦɢ ɤɥɚɫɫɚ Ȼ (ɞɥɹ ɧɚɪɟɡɚɧɢɹ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɪɚɡɥɢɱɧɨɣ ɫɬɟɩɟɧɢ ɬɨɱɧɨɫɬɢ);
8)ɪɟɡɰɵ ɡɭɛɨɪɟɡɧɵɟ ɱɢɫɬɨɜɵɟ – ɩɪɢɦɟɧɹɸɬɫɹ ɞɥɹ ɨɛɪɚɛɨɬɤɢ ɤɨɧɢɱɟɫɤɢɯ ɩɪɹɦɨɡɭɛɵɯ ɡɭɛɱɚɬɵɯ ɤɨɥɟɫ ɦɟɬɨɞɨɦ ɨɛɤɚɬɤɢ;
100
