山区建筑场地勘察中的几个问题  

Considerations of Engineering Investigations of Building Sites in Mountain Areas

作　　者：唐延贵 岳大昌 秦超 TANG Yangui;YUE Dachang;QIN Chao(Chengdu Global Geotechnical Co.Ltd.,Chengdu 610094)

机构地区：[1]成都四海岩土工程有限公司,成都610094

出　　处：《土工基础》2023年第3期422-425,共4页Soil Engineering and Foundation

摘　　要：山区工程建设场地较平原场地地质条件更加复杂,地质构造、地层岩性、边坡(滑坡)稳定性等都可能影响建筑地基基础选型及工程造价。以峨眉山市某工程勘察为例,从以下几个方面进行了探讨:①根据场地内填土、断裂破碎带的平面分布情况,分析和评价了地层岩性对地基均匀性和地基基础选型的影响,提出了相应的处理措施建议;②根据断裂破碎带的空间分布情况,分析和评价了其对场地稳定性、场地地震效应、地基均匀性和基础选型的影响;③根据勘察成果及建筑物总平面条件,分析和评价了边坡稳定性问题,提供了针对性的治理措施建议。Geological conditions in mountain areas are more complex than in plain areas for the engineering constructions.The geological structure,stratum lithology and engineering slope stability will potentially affect the building foundation types and engineering cost.This paper presents a case history of a building site investigation and treatment in Emeishan City.The following aspects are evaluated:(1)Based on the plane distribution of the fill soil and fault fracture zone,the influence of stratum lithology on the foundation uniformity and foundation type selection are analyzed and evaluated.The corresponding control measures are proposed in the paper.(2)Based on the spatial distribution of the fault fracture zone,the influence on the area stability,site seismic effect,foundation uniformity and foundation type selection are analyzed and evaluated.(3)Based on the survey results,the overall planning and design,slope stability are analyzed and evaluated,and corresponding suggestions on control measures are recommended.

关 键 词：山区地基 岩土均匀性 断层破碎带 环境边坡 

分 类 号：P642[天文地球—工程地质学]