| 顶上隧道涌泥成因分析及整治 |
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| 引用本文： | 田军,杨献章. 顶上隧道涌泥成因分析及整治[J]. 现代隧道技术, 2011, 48(4): 152-156 |
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| 作者姓名： | 田军 杨献章 |
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| 作者单位： | 1. 湖南省郴宁高速公路建设开发有限公司,郴州423000;湖南大学土木工程学院,长沙410082
2. 湖南省郴宁高速公路建设开发有限公司,郴州,423000 |
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| 摘 要： | 针对顶上隧道施工过程中的涌泥事故,通过地质调查、地质雷达探测、钻探等手段,详细研究了事故发生地段的工程地质情况、水文地质情况;分析了该隧道岩溶的发育、赋存、分布规律及规模;指出顶上隧道涌泥的主要原因是岩溶洼地及落水洞中的地表积水和残坡积水以及基岩裂隙水,经岩溶管道不断地渗透于花岗岩体与钙质砂页岩及灰岩接触部位的薄弱地带,从而形成了以垂直发育为主封闭性较好的管道溶洞。实践中结合地质补勘结果,采用跟管管棚、溶洞回填、加强溶洞段初期支护等治理措施,对顶上隧道的涌泥进行了有效处治。
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| 关 键 词： | 岩溶隧道 涌泥成因 整治措施 |
Cause Analysis and Treatment of Mud Outburst in the Dingshang Tunnel |
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| Tian Jun,Yang Xianzhang. Cause Analysis and Treatment of Mud Outburst in the Dingshang Tunnel[J]. Modern Tunnelling Technology, 2011, 48(4): 152-156 |
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| Authors: | Tian Jun Yang Xianzhang |
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| Affiliation: | Tian Jun1,2 Yang Xianzhang1(1 Hunan Chenning Expressway Construction and Development Co.,Ltd.,Chenzhou 423000,2 College of Civil Engineering,Hunan University,Changsha 410082) |
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| Abstract: | Considering the mud outburst during construction of the Dingshang tunnel,the geological and hydrogeological conditions of this tunnel section were studied by means of geological investigation,geological radar prospecting,and drilling.In addition,the development,occurrence,and scope of karst as well as its scale in the Dingshang tunnel were examined.It was postulated that the main cause of the tunnel mud outburst was that water collection in karst depressions,along with sink holes and fissures in the bedrock... |
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| Keywords: | Dingshang tunnel Cause of mud outburst Karst treatment |
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