王 雷,崔建军,王诚杰
静压PHC管桩穿越较厚粉砂夹层应用技术研究
王 雷,崔建军,王诚杰
摘 要:为解决在较厚粉砂夹层及硬层等特殊地质条件下应用静压法沉桩会出现爆桩、沉桩困难等问题,结合工程实例,提出了三种解决方案。通过对技术、经济、工期进行对比论证得出,提高管桩桩身抗压承载力的方式为最优选择。经检测,管桩各项技术指标均满足设计要求。
Abstract: It occurs blasting piles, settlement difficulties of pile or other issues on special geological conditions of thick silty sand dissection and hard formation by using the static pressure method. According to the problems motioned above, three kinds of solutions are put forward combined with engineering examples. Through contrastive demonstrating of the technology, economy and progress, it can be drawn that the method of strengthen the pipe in order to improve the compression bearing capacity of the pile body is the best choice. And the test results show that the piles can meet the design requirements of the technical indicators.
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