砂性土河床水力冲挖施工探索与研究

Exploration and Study on Construction on Sandy Riverbed Using Hydraulic Impact and Digging Method

分析了水力冲挖施工的常见错误以及引起的后果,提出作业段安排上奉行"短、快、养",断面成型奉行"自上而下,二次成型",高压水枪使用奉行"顺流、顺坡",泥浆泵安设位置奉行"利稳"等解决方案。

By analyzing the common errors and consequences caused in the process of construction when using hydraulic impact and digging method, the corresponding advices are given. The operation management of segment refers to the principle of ＂short, quick, maintenance＂. Molding of cross-section adheres to the principle of ＂top-down, secondary molding＂. Using of high-pressure water gun applies the rules of ＂downstream, down slope＂. Determination of position where mud pumps stay applies ＂good to stabilization＂ rules.