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随着城市建设的快速发展和城市人口的不断增加,环境污染越来越严重,特别是生活污水、废水与雨水的无秩序、合流排放,使得城市雨水排放沟渠、河涌严重污染,市民为此深恶痛绝,为此政府要求水务职能部门花大力气解决这个问题。深圳市政府投巨资要求水务职能部门整治污水、雨水合流排放,尽快使深圳各个街道的沟渠、河涌的水变得清澈、无臭、无污染。由于政府对水环境污染的高度重视,深圳市利用社会资金修建了许多污水处理厂,同时政府也要求水务部门修建了为污水处理厂输送污水的干管,城市污水干管大部分离地表较深,同时由于地质情况复杂,地下水位较高,开挖深基槽存在许多不安全隐患。本文主要就城市污水干管工程深基槽支护开挖方面的问题作一探讨,希望对广大工程技术人员有所帮助。
With the rapid development of urban construction and the continuous increase of urban population, environmental pollution is becoming more and more serious. In particular, the orderly and combined discharge of domestic sewage, waste water and rainwater leads to serious pollution of urban drainage ditches and river creek. Abhorrence, for which the government demanded that the water authority function vigorously solve this problem. The Shenzhen municipal government voted heavily to require water functional departments to rectify the sewage and rainwater to merge and discharge. As soon as possible, the ditches and creek water in various streets of Shenzhen become clear, odorless and pollution-free. As the government attaches great importance to the pollution of the water environment, Shenzhen City, the use of social capital to build a number of sewage treatment plants, while the government also asked the water department to build a sewage treatment plant for the delivery of sewage pipe, most of the urban sewage pipe away from the surface At the same time, there are many unsafe problems in deep foundation trench excavation due to complicated geological conditions and high groundwater table. This paper mainly discusses the problems of deep foundation trench excavation in the urban sewer system and hopes to help the general engineers and technicians.