超深基坑内⑨层井废井封井方法研究  

Study on the method of sealing the abandoned well in layer⑨of ultra deep foundation pit

作　　者：韩泽亮 Han Zeliang(Shanghai Foundation Engineering Group Co.,Ltd.,Shanghai 200002,China)

机构地区：[1]上海市基础工程集团有限公司,上海200002

出　　处：《山西建筑》2020年第15期6-8,共3页Shanxi Architecture

摘　　要：近年来随着城市的发展与科技的进步,越来越多涉及⑨层降水的超深基坑工程也得以开展。而这些直接深入⑨层土的降压井本身也是一个承压水渗漏的突破口,因此在施工中如何保证这些⑨层降水井的安全;当这些⑨层降水井遇到损坏无法修复后如何进行妥善的处理则显得尤为重要。以硬X射线自由电子激光装置项目对一口损坏的⑨层井进行成功封堵、顺利筑底的事件为案例,详细分析比选了几种不同的处理方案,最终总结出一套完整有保证的⑨层废井的封井方法,该方法对类似的废桩、勘探孔、遗落钻杆处理也可以提供一定的借鉴价值。In recent years,with the development of the city and the progress of science and technology,more and more ultra-deep pit projects involving⑨layer precipitation have also been carried out.And these direct lysing⑨layer of soil pressure-lowering well itself is also a breakthrough in pressurized water leakage,so in the construction of how to ensure the safety of these⑨layer precipitation wells;In this paper,the hard X-ray free electron laser device project on a damaged⑨layer well for successful sealing,smooth bottoming of the event as a case,a detailed analysis than selected several different treatment options,and finally concluded a complete set of guaranteed⑨layer waste well sealing method,this method for similar waste piles,exploration holes,residual drill pipe treatment can also provide a certain reference value.

关 键 词：超深基坑 降压井 封井 MJS 注浆 

分 类 号：TU753[建筑科学—建筑技术科学]