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一、概述乐昌武水大桥全部采用冲击钻孔桩基础。该桥址处于溶岩地区,地质状况极为复杂,在冲击钻孔过程中,极易造成卡钻事故。现仅以3号墩为例(如图1所示)来说明岩溶地区冲击
First, an overview Lechang Wushui Bridge all the use of impact bored pile foundation. The bridge site is in the area of karst rock. The geological conditions are extremely complicated. During the impact drilling process, it is very easy to cause a stuck pipe accident. Take Pier 3 as an example (as shown in Figure 1) to illustrate the impact of karst areas