| 锚杆预紧力对综掘巷道围岩支护的重要作用 |
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| 引用本文： | 李丁成. 锚杆预紧力对综掘巷道围岩支护的重要作用[J]. 太原科技, 2008, 169(2): 80-81 |
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| 作者姓名： | 李丁成 |
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| 作者单位： | 大同煤矿集团有限责任公司晋华宫矿,山西,大同,037016 |
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| 摘 要： | 论述了在大断面综掘巷道锚杆支护施工中,加大锚杆顸紧力对加固围岩起到的重要作用,试验得出螺母扭矩与锚杆拉力的关系及影响因素,提出锚杆预紧力不应小于杆体强度的1/2.
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| 关 键 词： | 锚杆预紧力 加固围岩 作用原理 锚杆拉力 预紧力 综掘巷道 围岩支护 作用 Rock Force Support Anchor 强度 杆体 影响因素 关系 扭矩 螺母 试验 加固围岩 大锚杆 支护施工 大断面 |
| 文章编号： | 1006-4877(2008)02-0080-02 |
| 修稿时间： | 2007-11-11 |
Important Effect of Anchor Bar Pretightening Force to Support Force of Adjoining Rock Fully-excavating Laneway |
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| LI Ding-cheng. Important Effect of Anchor Bar Pretightening Force to Support Force of Adjoining Rock Fully-excavating Laneway[J]. Taiyuan Science and Technology, 2008, 169(2): 80-81 |
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| Authors: | LI Ding-cheng |
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| Abstract: | The article elaborated effect of increasing the anchor bar pretightening force to reinforce adjoining rock during the course of heavy fully-excavating laneway anchor bar suppoting.The experiment arrived at relation of between nut torque and tensile force of anchor bar.The article proposed that anchor bar pretightening force don't go below one-second of the intensity of rod. |
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| Keywords: | anchor bar pretightening force reinforce adjoining rock principle of action |
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