1 前言 在河道上修建护坡或拦河闸坝下游海漫时,由于基础部位多处于地下水位高、渗透系数大的土质上,如采用浆砌石做基础,不仅施工条件差、难度大,质量难以控制,一旦漫水,灰浆流失,易留下隐患,而且施工期长,费用大。对于较小规模的工程项目,消耗在基坑排水上的费用将占据整个工程投资的较大比例。 1 Foreword In the river to build the slope protection or downstream of the barrier dam when the sea diffuse, because the foundation is mostly in the groundwater level is high, the permeability coefficient of soil, such as the use of masonry as a foundation, not only poor construction conditions, difficulty, quality Difficult to control, once the water, mortar loss, easy to leave hidden dangers, and the construction period is long, the cost is big. For smaller projects, the cost of draining the foundation pit will account for a large proportion of the total project investment.