深基坑工程中三重管高压旋喷桩和桩间墙二次施工应用分析  

Analysis of Secondary Construction of Triple-pipe High-pressure Jet-grouting Piles and Wall between Piles in Deep Foundation Pit Engineering

作　　者：沈朝旭 SHEN Chaoxu(Jilin Provincial Institute of Hydrology and Geology,Changchun,Jilin Province,130012 China)

机构地区：[1]吉林省水文地质调查所,吉林长春130012

出　　处：《科技创新导报》2020年第30期13-16,共4页Science and Technology Innovation Herald

摘　　要：高压旋喷桩作为一种地基止水处理的技术措施多用于防止地基突涌冒水以及深基坑止水帷幕等方面地基加固。以实际深基坑工程中的三重管高压旋喷桩和桩间墙二次施工为例,针对高压旋喷桩三重管及桩间墙二次施工技术中成桩效果、抗压强度及施工效率等方面进行了对比分析,提出了今后类似工程项目地基处理的推荐方案为今后类似的工程提供参考经验。High-pressure jet grouting piles,as a kind of foundation water-stop treatment technical measures,are mostly used for foundation reinforcement in such aspects as prevention of water inrush and deep foundation pit water-stop curtain.Taking the secondary construction of triple-tube high-pressure jet grouting piles and the wall between piles in the actual deep foundation pit project as an example,the pile formation effect,compressive strength and construction efficiency in the secondary construction technology of high-pressure jet grouting piles with triple-tube and pile walls as targeted,a comparative analysis was carried out in other aspects,and the recommended plan for foundation treatment of similar projects in the future was proposed to provide reference experience for similar projects in the future.

关 键 词：深基坑 三重管 高压旋喷桩 桩间墙 二次施工 成桩效果 强度 

分 类 号：TU753[建筑科学—建筑技术科学]