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一、前言文冲船厂位于珠江北岸。3号坞地处船厂的东侧、原三期工程旧址。原三期工程1977年7月动工,1978年12月停建,此后形成一开敞港池式坞坑。土质长期被江水浸泡,坑底最深处标高为97.89m,地面标高为107.50m 左右。受文冲船厂大坞指挥部的委托,四航科研所担负了3~#坞的施工监测任务。施工监测的重要目的,是确保船坞围堰及基坑、边坡开挖的安全。考虑到现场实际情况和工程进展中可能遇到的问题,根据设计单位建议的监测断面和观测内容,监测工作有如下几个方面:
First, the foreword Wenchong Shipyard is located in the north bank of the Pearl River. Dock 3 is located on the east side of the shipyard, the former site of the former three projects. The original three projects started construction in July 1977, and stopped construction in December 1978, after which an open harbor-style dock was formed. Soils have been soaked in the river for a long time. The deepest elevation of the pit bottom is 97.89m and the ground elevation is about 107.50m. Entrusted by the wharf shipyard dock headquarters, Si Hang Institute of Science undertook 3 ~ # dock construction monitoring mission. The important purpose of construction monitoring is to ensure the safety of dock cofferdam, foundation pit and slope excavation. Taking into account the actual situation on site and project progress may encounter problems, according to the design unit recommended monitoring sections and observations, the monitoring of the following aspects: