软弱地层下的基坑支护方案比选  

Design comparison of foundation pit support schemes under soft soil

作　　者：张毅 Zhang Yi(Shenzhen Shen Shan Special Cooperation Zone Zhizhen International Automotive City Planning and Design Co.,Ltd.,Shenzhen Guangdong 518200,China)

机构地区：[1]深圳市深汕特别合作区智臻国际汽车城规划设计有限公司,广东深圳518200

出　　处：《山西建筑》2024年第17期97-100,共4页Shanxi Architecture

摘　　要：淤泥、淤泥质土具有高压缩性、高灵敏度、易流变、蠕变等特点,工程力学性质差,基坑支护代价高。文章以东莞某项目基坑支护为背景,介绍了该基坑设计的要点、难点、重点,对钻孔灌注桩、SMW工法桩支护类型进行对比,综合考虑支护结构刚度、经济性、工期等因素,最终选择经济性好、施工效率高、环境污染性小的SMW工法桩作为支护方案,为今后类似地质条件基坑提供参考借鉴。Sediments and silt with high compressibility,high sensitivity,fluidity and creep characteristics,poor engineering mechanical properties,and high costs of supporting excavations,are difficult to handle in engineering design.Taking a foundation pit support project in Dongguan as the background,this article introduces the key points,difficulties,and highlights of foundation pit design,compares the support types of drilled pile and SMW method,comprehensively considers factors such as stiffness,economy,construction period,and environmental pollution,and ultimately selects SMW method as the support plan due to its good economy,high construction efficiency,and low environmental pollution.This provides a reference for similar foundation pit projects with similar geological conditions in the future.

关 键 词：基坑工程 支护设计 排桩 SMW工法桩 

分 类 号：TU447[建筑科学—岩土工程]