深圳市南山区后海片区风化深槽的分布特征分析  

Analysis of distribution characteristics of weathered deep troughs in Houhai area of Nanshan District of Shenzhen

作　　者：王贤能 李志波 Wang Xianneng;Li Zhibo(Shenzhen Geoher Group Co.,Ltd.,Shenzhen 518057,China)

机构地区：[1]深圳市工勘岩土集团有限公司,广东深圳518057

出　　处：《工程勘察》2022年第4期8-15,共8页Geotechnical Investigation & Surveying

基　　金：深圳市科创委技术攻关项目(JSGG20180504170317195)。

摘　　要：深圳市南山区后海片区发育多处风化深槽,岩体主要为全、强风化岩。风化深槽的发育规模与断层破碎带的发育程度密切相关。因其深埋地下,其分布特征及工程特性难以准确判断,对工程建设有不利影响。本文通过收集后海片区内大量的地质勘察资料和施工技术资料,结合周边地面调查,圈划了6条风化深槽,描述了各风化深槽的发育特征;文中初步判别了多条隐伏断裂的存在,分析了深圳大学断裂、后海断裂、深圳湾口岸断裂的主要特征;探讨了高层建筑大直径超长桩的施工技术。研究成果对开展南山区的城市地质调查工作有重要的借鉴意义。There are many weathered deep troughs in Houhai area of Nanshan District of Shenzhen, and the rock mass is mainly completely and highly weathered rock. The development scale of weathered deep trough is closely related to the development degree of fault fracture zone. Because of its deep underground, its distribution characteristics and engineering characteristics are difficult to be accurately judged, which has adverse effects on engineering construction. By collecting a large number of geological survey data and construction technique data in the area, combined with the surrounding ground survey, six weathered deep troughs are delineated, and the development characteristics of each weathered deep trough are described. In this paper, the existence of several concealed faults is preliminarily identified, and the main characteristics of Shenzhen University fault, Houhai fault and Shenzhen Bay port fault are analyzed. The construction technique for large diameter super long piles in high-rise building is discussed. The study results have important reference significance for carrying out urban geological survey in Nanshan District.

关 键 词：风化深槽 后海片区 深圳大学断裂 后海断裂 桩基施工技术 

分 类 号：TU457[建筑科学—岩土工程]