九尾岭断裂的性状及对深圳地铁5号线的影响
摘要:深圳地铁5号线穿越深圳北东向断裂束的主要断裂之一九尾岭断裂,在主断裂下盘发育多条次生断裂和共轭断裂。断裂自身稳定性、断裂带及影响范围带的工程地质、水文地质特征对地铁线路的选择和影响是关键因素。通过断裂自身稳定性、地应力、区域构造活动性、断裂带工程水文特性方面综合分析了其对深圳地铁5号线的影响。得出断裂自身稳定性较好,但其影响范围内岩体破碎、节理裂隙发育、渗透系数大,地铁施工易导致掉块、坍塌、涌水等问题,应高度重视。对类似工程的勘察设计有一定的借鉴意义。
Abstract:Shenzhen Metro Line 5 passed through Jiu Wei Ling fault,which is one of the main faults of the northeast trerd at Shenzhen,there are multiple secondary faults and conjugate faults in the footwall of the main fault。The faults stability、the fault zone and the engineering geology and hydrogeological properties of the influence zone are the key factors for the selection and influence of the subway line。In this paper,the influence of the faults are analyzed in terms of its own stability,geostress,regional tectonic activity and the hydrologic characteristics of the faults zone on the Shenzhen Metro Line 5。It is provided that the fracture is stable,but rock masses break,joint fractures develop and permeability coefficient is large in the influence area,metro construction is liable to cause problems such as falling blocks,collapsing and water gushing,we should attach a great importance to it。This paper can be reference in similar engineering investigation and design。
中文标题:
九尾岭断裂的性状及对深圳地铁5号线的影响
Engineering Characteristics of Jiu Wei Ling Fault and Its Influence on Shenzhen Metro Line 5
作者:
李新元
Li Xinyuan
作者简介:李新元,男,1981年生,汉族,大学本科,高级工程师,注册土木工程师(岩土),长期从事岩土工程勘察工作。E-mail:459981804@qq.com
通讯地址:
深圳市工勘岩土集团有限公司, 广东深圳 518063
ShenzhenGeokeyGroupCo.,Ltd.,Shenzhen518063,Guangdong,China
中图分类号:TU441.35
doi:10.3969/j.issn.1007-2993.2019.03.001
出版物:岩土工程技术
收稿日期:2018-11-13
网络出版日期:2021-07-06
关键词:九尾岭断裂,深圳地铁5号线,地质构造,矿山法
Key words:Jiu Wei Ling fault,Shenzhen Metro Line 5,geological structure,miningmethod
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