山东省曲阜单家村煤矿淹水沉井穿过180米含水冲积层,主井沉井深192米,偏斜6.9‰,风井沉井深180米,偏斜7.9‰,每米成井成本6700元。实践证明,在适当建井地质条件下,淹水沉井是一种技术经济合理、易于掌握、投资少、上马快的施工方法。现将我们的施工经验介绍如下。 The submerged caisson at Shanjia Coalmine, Qufu, Shandong Province, passes through a 180-meter aquifer alluvium with a depth of 192 meters and a deflection of 6.9 per thousand. The well is caisson depth of 180 meters with a deflection of 7.9 per thousand and a cost of 6,700 yuan per meter. Practice has proved that, under appropriate geological conditions, flooding caisson is a technologically reasonable and easy to grasp, less investment, quick construction method. Now we introduce the construction experience is as follows.