摘要
以京沪高速铁路三标荆河特大桥钻孔桩施工为例,结合岩溶区钻孔桩施工的重点和难点,介绍了预钻孔的施工原理,阐述了潜孔钻机在岩溶强发育地层桩基施工中的应用,总结得出了潜孔钻机预钻孔施工的优点及注意事项。
Taking the drilling piles construction of three-standardization Jinghe super-large bridge along Beijing-Shanghai high-speed railway as an example,the paper combining with the key points and difficult ones in the drilling pile construction in karst areas,introduces the construction principle of the prepared holes,illustrates the application of DTH drill in the pile foundation construction of karst developing areas,and concludes the advantages of the prepared holes of DTH drill and its precautions.
出处
《山西建筑》
2009年第30期102-103,共2页
Shanxi Architecture
关键词
岩溶区
钻孔桩
潜孔钻机
冲击应力
karst areas
drilling pile
DTH drill
impact stress
