云台山景区危岩体稳定性分析  

Stability analysis of perilous rocks in Yuntaishan scenic region

作　　者：高永才[1,2] 孟小军 齐永安[3] 高建良[1] 张盼盼[3] 代明月[3] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454000 [2]焦作云台旅游发展有限公司,河南焦作454361 [3]河南理工大学资源环境学院,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2015年第4期572-576,581,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：河南省自然科学基金资助项目(2010A440004)

摘　　要：通过对研究区地质环境条件和危岩体的特征分析,提出了研究区危岩体的两种成因模式,并根据岩石力学实验结果,运用静力解析法对于景区内的危岩体进行了定量判定。结果表明:在自然条件下,除个别稳定性较差外大部分危岩体稳定性较好;在暴雨和地震条件下,大多数危岩体的稳定性都较差。研究区内分布大量后缘无陡倾裂隙型危岩体,对它们详细研究表明,当砂岩危岩体在临空面上覆岩体厚度超过5 m、灰岩危岩体临空面上覆岩体厚度超过3 m时,其稳定性变得较差。研究结果为景区安全治理措施提供了依据。Two kinds of forming models are put forward through analyzing the geological environmental conditions and the characteristics of perilous rocks. The static analytic method can be used for quantitative judgment of perilous rocks on the basis of experimental results of rock mechanics. The result shows that： the most of the perilous rocks are well stable except few ones under natural conditions; however,the perilous rocks become much unstable under the conditions of heavy rain and earthquake. The perilous rocks without steep dip cracks on their rear edges are widely distributed in the study area. The detailed study on them indicates that the perilous rocks show a poor stability when the thickness of sandstone rocks with free faces exceeds 5 m and those of limestone rocks exceeds 3 m. The stable analysis of the perilous rocks can provide evidences for the safety treatment measures of Yuntaishan scenic region.

关 键 词：危岩体 稳定性分析 静力解析法 岩石临空面 

分 类 号：P694[天文地球—地质学]