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水磨钻挖孔适用于一定地质条件,一定水文条件和一定施工环境的桩基的人工挖孔施工,尤其适用地质构造明确,无地下水地层的施工。杭金衢高速改扩建项目第六合同,桩基础分直径1米、1.2米、1.3米、1.5米几个型号,其中最大桩长30米,最小桩长8米。有三个桥为水中桩基,其他桩基均为路上桩,采用了水磨钻人工挖孔的施工工艺。本文结合项目的实际施工,对水磨钻挖孔的施工进行简析。
Drilling holes drilled for a certain geological conditions, a certain hydrological conditions and the construction of artificial pile foundation digging construction, especially for clear geological structure, no groundwater strata construction. Hangjinqu high-speed expansion project sixth contract, pile foundation sub-diameter of 1 m, 1.2 m, 1.3 m, 1.5 m several models, of which the maximum length of 30 meters, the minimum length of 8 meters. There are three bridges for the water pile foundation, the other pile foundation are road pile, using the construction process of water drilling drill digging holes manually. In this paper, the actual construction of the project, the water mill drill dig hole construction analysis.