北京地铁施工中若干地下水处理方法

在多年的地铁建设实践中,对于地下水的处理先后使用了堵水法、明排法和降水法等多种方法。从实践经验来看,降水法在处理地下水方面效果显著,在地铁施工中得到了广泛的应用。降水法又包括管井降水和辐射井降水。管井降水在多年的工程实践中取得了成功的经验,由于其施工简便,降水效果良好,是目前北京地铁工程降水中应用最广泛的一种方法。而辐射井降水作为一种新的降水方法在解决城市复杂地区的降水有着非常明显的优势,并且有较好的降水效果,因而在北京地铁工程降水中得到了越来越多的应用。

Some Groundwater Treatment Methods During the Construction of Beijing Subway

Groundwater treatment is a difficult problem occurring during the construction of subway.Some methods,such as dewatering,clogging and open-pumping,are used to deal with this problem during the practice of subway construction in Beijing.The dewatering method,including pipe well point and radial well,are widely used because of its marked effects.Of these dewatering methods,the methods of pipe well point and radial well are the most effective ones.