| 水对树脂锚杆锚固力的影响性研究 |
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| 引用本文： | 宋根祥,张盛,勾攀峰,樊鸿.水对树脂锚杆锚固力的影响性研究[J].矿冶工程,2005,25(5):11-14. |
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| 作者姓名： | 宋根祥 张盛 勾攀峰 樊鸿 |
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| 作者单位： | 神火集团,新庄煤矿,河南,永城,476000;四川大学,建筑与环境学院,成都,610065;河南理工大学,资源与材料工程系,河南,焦作,454000;四川省交通厅,公路局,四川,成都,610041 |
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| 基金项目： | 河南省教育厅自然科学基金资助项目（2000440002）. |
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| 摘 要： | 在巷道围岩渗水严重地段, 树脂锚杆锚固力往往低于理论计算值, 锚杆支护的可靠性难以保证。结合现场测试, 在实验室研究了钻孔流水和钻孔内积水两种情况下, 水对树脂锚杆锚固力的影响程度。经过分析表明, 当孔壁渗流水不大时, 树脂锚固剂在搅拌过程中, 通过摩擦挤压作用, 能够堵住某些裂隙出水点, 但是一些分散到树脂胶泥中的水滴, 会影响锚杆的锚固力。而当钻孔内水量较大, 甚至有压力的喷水时, 树脂锚杆锚固力会大大下降。
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| 关 键 词： | 树脂锚杆 树脂锚固剂 钻孔流水 锚固力 |
| 文章编号： | 0253-6099(2005)05-0011-04 |
| 收稿时间： | 2005-01-17 |
| 修稿时间： | 2005年1月17日 |
Study on the Influence of Water on the Anchor-hold of Resin Anchor |
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| SONG Gen-xiang,ZHANG Sheng,GOU Pan-feng,FAN Hong.Study on the Influence of Water on the Anchor-hold of Resin Anchor[J].Mining and Metallurgical Engineering,2005,25(5):11-14. |
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| Authors: | SONG Gen-xiang ZHANG Sheng GOU Pan-feng FAN Hong |
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| Affiliation: | 1. Xinzhuang Coal Mine of Shenhuo Group, Yongcheng 476000, Henan, China;
2. College of Architecture and Environment Engineering, Sichuan University, Chengdu 610065, Sichuan, China;
3. Department of Resources and Materials Engineering, HenanUniversity of Science and Technology, Jiaozuo 454000, Henan, China;
4. Highway Bureau of Transport Department in Sichuan Province, Chengdu 610041, Sichuan, China |
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| Abstract: | Severe seepage is often occurred in wall rock around the laneway due to the anchor-hold of resin anchoring bolt less than the calculated value,thus resulting in difficulty in guaranteeing the security of the anchoring bolt support.Based on the measurement on site,the influence of water is studied on the anchor-hold of resin anchoring bolt in the laboratory under two conditions,including moving water in borehole and water being accumulated in the borehole.The analysis show that resin anchoring cartridge can stop up some fissures by friction and extrusion during its mixing,if there's not much seepage on the wall of borehole.But some drips dispersed in the resin anchoring cartridge will affect the anchor-hold of anchoring bolt.Furthermore,if there's much water accumulated in the borehole which has resulted in the seepage with certain pressure,the anchor-hold of resin anchoring bolt will be weakened greatly. |
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| Keywords: | resin anchoring bolt resin anchoring cartridge moving water in the borehole anchor-hold |
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