基坑支护设计及施工关键技术研究  

Research on Key Technology of Foundation Pit Support Design and Construction

作　　者：刘丹 Liu Dan(Liaoning Division of China Building Materials Industry Geological Exploration Center,Shenyang,China)

机构地区：[1]中国建筑材料工业地质勘查中心辽宁总队,辽宁沈阳

出　　处：《科学技术创新》2025年第6期133-136,共4页Scientific and Technological Innovation

摘　　要：本文以基坑地质条件为基础,先进行基坑支护方案选择、设计及计算,再结合工程经验,进一步开展基坑支护措施关键技术研究及支护效果评价。分析结果表明:结合工程实际,初拟的支护方案有五种,经支护费用估算,方案五具有相对更好的经济性和适用性,因此,基坑支护措施确定为“支护桩+锚杆格构梁+网喷”;同时,经基坑施工变形成果统计,基坑变形值范围为13.02~23.03 mm,平均值为19.92 mm,均小于35 mm的变形控制值,说明基坑支护措施能满足基坑安全控制要求,是合理有效的。Based on the geological conditions of the foundation pit,this article first selects,designs,and calculates the foundation pit support scheme,and then combines engineering experience to further study the key technologies of foundation pit support measures and evaluate the support effect.The analysis results indicate that,based on the actual engineering situation,there are five proposed support schemes.After estimating the support cost,Scheme Five has relatively better economy and applicability.Therefore,the foundation pit support measures are determined as"support piles+anchor rod lattice beams+mesh spraying";At the same time,according to the statistics of the deformation results of the foundation pit construction,the range of deformation values of the foundation pit is 13.02~23.03 mm,with an average value of 19.92 mm,all of which are less than the deformation control value of 35 mm.This indicates that the foundation pit support measures can meet the safety control requirements of the foundation pit and are reasonable and effective.

关 键 词：基坑 支护设计 关键技术 支护效果 

分 类 号：TU473[建筑科学—结构工程] P642[建筑科学—土工工程]