摘要
为了提升轨道交通车站深基坑工程的成槽质量和槽壁稳定性,解决整个地下工程质量安全产生问题,文章以某轨道交通3号线车站深基坑工程为研究对象,采用地下深基坑减压降水成槽技术,并通过常规成槽试验和优化后的5 m降深优化试验,对结果进行对比分析。结果表明,较小井间距条件下的减压降水显著提高了成槽质量和槽壁稳定性。优化后的方案在经济成本上也优于其他方案,能获得较为良好的施工效果,具有一定的应用价值。
In order to improve the trenching quality and trench wall stability of deep foundation pit engineering at rail transit station and solve the quality and safety problems of the entire underground engineering,this paper takes the deep foundation pit engineering at a station on rail transit line 3 as the research object,adopts the underground deep foundation pit decompression and dewatering trenching technology,and compares and analyzes the results of the conventional trenching test and the optimized 5 m depth reduction optimization test.The results show that the decompression and dewatering under the condition of smaller well spacing significantly improves the trenching quality and trench wall stability.The optimized scheme is also superior to other schemes in terms of economic cost,which can obtain better construction effect and has certain application value.
作者
胡新达
董建宁
陈高升
HU Xinda;DONG Jianning;CHEN Gaosheng(Guangcheng Construction Group Co.,Ltd.,Wenzhou 325000,Zhejiang,China)
出处
《工程技术研究》
2023年第8期41-44,共4页
Engineering and Technological Research
关键词
软土
地下工程
深基坑
降水
成槽
轨道交通车站
soft soil
underground engineering
deep foundation
dewatering
forming slot
rail transit station
