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1、概述 深圳特区在基抗开挖时出现了不少事故,给业主和施工单位等都造成了很大损失,社会上也产生了不良影响。根据调查分析其中原因,有两个主要原因:一是基坑围护结构与开挖本身就是一种临时性工程,地下工程完成后一般就失去了作用,因此参与建设各方都没有充分认识其安全的重要性,设计中所留有的完全储备不大,若施工期间的条件有变,或实际地层情况与设计时不符,就很容易使围护体系或基坑处于危险;二是施工监测的工作没有跟上,这样基坑施工开挖时,往往带有盲目性,一旦出现问题,不能及时
1. Outline The Shenzhen Special Economic Zone (SEZ) has encountered a lot of accidents during the excavation of the foundation and caused great losses to the owners and construction units. The society also had adverse effects. According to the investigation and analysis of the reasons, there are two main reasons: First, the foundation pit retaining structure and excavation itself is a temporary project, after the completion of underground works are generally lost their role, so all parties involved in the construction did not fully understand its The importance of safety, the complete reserve left in the design is not large, if the conditions during construction change, or the actual formation and design time does not match, it is easy to envelopment system or foundation pit at risk; Second, construction monitoring Of the work did not keep up, so excavation excavation, often with blindness, in case of problems, can not be timely