郑州至开封城市通道工程U槽封水方案研究

Study on the Sealing Water Scheme with U Trough in the Urban Channel Engineering from Zhengzhou to Kaifeng

郑州至开封城市通道第一合同段工程地下水位较高,为保证工程顺利进行,使箱涵在无水条件下施工,降水工作就显得十分重要。根据水文地质条件、工程特点及基坑开挖深度及原方案存在的问题,提出了U槽封水方案,并对其施工工艺与方法进行了研究。

Because of the higher level of the the groundwater in the first contract section in the channel engineering from Zhengzhou to Kaifeng, the dewatering work is very important in order to ensure the smooth development of the engineering and make the box culvert can be constructed under the condition of no water. According to the hydro- geological conditions, engineering characteristics, foundation pit excavation depth and the problems existing in former scheme, this paper advances the sealing scheme with U trough, and studies on its construction technologies and methods.