| 四川威远县黄荆沟镇垮岩山危岩成因及防治 |
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| 引用本文： | 王明典,周东.四川威远县黄荆沟镇垮岩山危岩成因及防治[J].中国地质灾害与防治学报,2005,16(B12):37-40. |
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| 作者姓名： | 王明典 周东 |
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| 作者单位： | 四川省地矿局101地质工程队,四川广汉618300 |
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| 摘 要： | 四川省威远县黄荆沟镇垮岩山危岩，受恶劣的地质环境条件及地表水入渗的影响，发育形成了最宽达120cm，延伸数十米的宽大裂缝，岩石变形破坏迹象明显，严重威胁到岩下的住户及威煤中学师生的生命财产安全。文章对垮岩山危岩发育特征及形成机制进行系统分析和定性评价，得出了危岩体在饱水情况下处于欠稳定状态，在地震情况下处于不稳定状态的结论。针对危岩特征及成因机制分析，采用预应力锚索锚固，辅以清危、排水的综合治理方案，具有技术可行、经济合理的特点。经过1a多时间的考验，经监测证实治理效果明显，为今后类似的危岩治理起到参考作用。
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| 关 键 词： | 危岩体 基本特征 成因 防治措施 四川威远县 |
| 文章编号： | 1003-8035（2005）SO-0037-04 |
| 收稿时间： | 2005-08-23 |
| 修稿时间： | 2005-12-19 |
Formation of the dangerous rock mass at Kuayanshan in Huangjinggou Town, Weiyuan County, Sichuan Province and countermeasures |
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| WANG Ming-dian, ZHOU Dong.Formation of the dangerous rock mass at Kuayanshan in Huangjinggou Town, Weiyuan County, Sichuan Province and countermeasures[J].The Chinese Journal of Geological Hazard and Control,2005,16(B12):37-40. |
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| Authors: | WANG Ming-dian ZHOU Dong |
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| Institution: | 101 Geology Engineering Team, Sizhuan Bureau of Geology and Mineral resource, Guanghan 618300, China |
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| Abstract: | Affected by adversely geological environment and surface water intiltration, the dangerous rock mass at Kuayanshan in Huangjinggou Town, Weiyuan County, Sichuan Province shows obvious signs of deformation with large cracks up of 120 cm in width and tens of meters in length. Life of students and property of Weimei High School are under risk of the dangerous rock mass. In this article, we analyzed the basic characteristic and formation mechanism of the dangerous rock. We found that the dangerous rock mass is unstable under saturation and earthquake condition. The comprehensive countermeasures against deformation of the dangerous rock mass include prestressed cable anchoring, removing upper part of the dangerous rock and construction of drainage system. These countermeasures are easy to implement and also cost-effective. Monitoring results after they were taken for one year show that these measures are effective. |
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| Keywords: | dangerous rock mass basic characteristic formation mechanism countermeasures |
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