某地下洞室围岩松动区深度的测试与分析
摘要:地下洞室开挖后,地应力重新分布,在洞室围岩周围形成一定深度的松动区,松动区深度的确定对评价围岩稳定性和指导洞室支护设计都具有重意义。利用围岩超声波测试成果和施工期位移监测成果,通过对比分析确定出某洞室围岩松动区的深度范围,为选择合理的围岩支护参数提供依据。
Abstract:The excavation of the underground chamber causes the redistribution of the geostress, and certain thickness of the disturbed zone produced surrounding rockmass. It is important to measure out the thickness of the disturbed zone for evaluating the stability of the surrounding rockmass and designing the support of tunnel. Comparing the results of supersonic test with the results of monitoring the displacement during the construction, the scope of the tunnel wall rocks disturbed zone can be measured,and the fit parameters is offered for support of the wall rocks.
中文标题:
某地下洞室围岩松动区深度的测试与分析
Test and Analysis for Surrounding Rockmass Disturbed Zone of Underground Cavern
作者:
董燕君1,黄志鹏2,陈赛超1
Dong Yanjun1,Huang Zhipeng2,Chen Saichao1
作者简介:董燕君,1969年生,男,河南灵宝人,硕士,高级工程师,主要从事岩土工程方面的设计与科研工作。E-mail:dongyj998@163.com
通讯地址:
1. 中南勘测设计研究院, 湖南长沙 410014; 2. 水利部岩土力学与工程重点实验室重庆岩基研究中心, 重庆 400014
1.Mid-southDesignResearchInstituteforHydroelectricProjects,Changsha410014,Hunan; 2.ChongqingRockresearchCentreoftheKeyLaboratoryofGeotechnicalMechanicsEngineeringofMWR,Chongqing400014,China
中图分类号:TU452;TU454
出版物:岩土工程技术
收稿日期:2008-11-07
关键词:围岩松动区厚度,声波测试,位移监测
Key words:thickness of the disturbed zone,ultrasonic test,displacement monitoring
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