张晓林++杨秋亮
【摘要】深基坑边坡支护施工是整个深基坑施工的重点,它是确保在基坑土方开挖和基础施工时,基坑边坡不产生失稳和坍塌的关键。在深基坑边坡支护施工中,监理如何去控制好边坡支护的施工质量,确保深基坑的边坡在支护后,能保证持续稳定和安全,本文结合一工程深基坑边坡支护的成功案例,谈谈在深基坑边坡支护施工中,监理工作的几个要点。
【关键词】深基坑边坡支护;监理工作要点
Key Points in Construction Supervision of Slope Support in Deep Foundation
Zhang Xiao-lin,Yang Qiu-liang
(FYI Engineering Construction Supervision Co., LtdFenyiJiangxi336600)
【Abstract】The deep foundation pit slope supporting construction is the key point of the deep foundation pit construction, which is the key to ensure the foundation pit excavation and foundation construction, the slope does not produce instability and collapse. In the deep foundation pit slope supporting construction, the supervision how to control the construction quality of the slope support, to ensure that the deep foundation pit slope after the support, to ensure the stability and safety, this article combines a deep foundation pit Slope supporting the success of the case, to talk about the deep foundation pit slope support construction supervision work of several points.
【Key words】Deep foundation pit slope support;Key points of supervision work
深基坑是指基坑开挖深度超过5m,且地下水位又在基坑开挖范围内的基坑。深基坑开挖时,需要对其边坡进行支护,以确保在基坑土方开挖时和以后的基础施工中,基坑边坡不产生失稳和坍塌,能持续保证土方开挖和基础施工时的安全。那么,在深基坑边坡支护施工中,作为工程监理应当作些什么工作,如何去控制好深基坑边坡支护的施工质量,本文结合工程实践,谈谈在深基坑边坡支护施工中,监理工作的几个要点。
1. 工程慨况:
1.1紫城中心花苑工程位于分宜县城北侧,建筑面积为123320m2,占地面积为15646m2,该工程设有六层裙楼(其中地下两层,地面四层),裙楼上设有三栋28层的塔楼,基础为整体现浇钢筋混凝土筏板基础,基底标高为-10.9m,距自然地面深9.4m。由于基坑开挖深度超过5m,该基坑开挖属于深基坑开挖。
1.2根据地质工程勘察部门提供的该工程地基岩土勘察报告,其地质情况自上而下描述为:①杂填土:由建筑垃圾、粘土等组成,平均厚度为1.83m;……