摘 要深基坑支护属临时性工程,支护目的是为下道工序制造施工条件。随着我国房地产业进展的需要以及城市规划用地资源的紧缺，深基坑工程越来越多，但因深基坑支护属临时性工程,往往被施工单位所忽略,施工事故急剧上升，造成巨大的经济损失.加强深基坑支护施工工艺及质量控制是关键，有效减少施工事故，控制修建成本为目的，所以对深基坑支护施工工艺及质量控制的讨论具有重要的应用价值。 关键词：深基坑支护；施工工艺；质量控制。AbstractDeep foundation pit bracing project is belong to temporary work. The purpose of bracing is to creat the conditions of construction for the next working procedure. There are more and more deep foundation pit projects with the developing demands of the realty industry and the lack of land resources for urban planning. However, they are often ignored by construction units for which are belong to temporary work。 Therefore, construction accidents rised sharply， and it made huge economic loss. The key is to enhance the construction technology and the controlling of qulality of deep foundation pit project 。 Reasonably reducing construction accident and controlling construction cost is what the purpose is。 Therefore， there are important application value for the study of construction technology and controlling of qulality of deep foundation pit project。Key words ： deep foundation pit bracing project; construction technology； controlling of qulality引 言一般深基坑是指开挖深度超过 5 米（含 5 米)或地下室室三层以上（含三层），或深度虽未超过 5 米，但地质条件和周围环境及地下管线特别复杂的工程。深基坑支护属临时性工程，工艺工序包含施工准备、基坑场地清理、坑壁支护、降水、土方开挖、监测、清底等多道工序,支护目的是为下道工序制造施工条件。深基坑支护施工作业过程中事故频发，导致修建成本增加，造成严重的经济损失,因此，深基坑支护施工工艺及质量控制，在工程建设过程中属重要环节.为切实抓好深基坑支护施工工艺及质量控制,必须严格根据《建筑...
