论文部分内容阅读
桩的持力层选择和入土深度是桩基设计的重要环节,就砂性土持力层而言,如何合理地确定桩尖插入持力层的深度,发挥它对桩基的支承作用,则是影响桩基工程可靠性和经济性的重要前题。南通市桩基工程为解决这一问题,曾在9根桩的静载荷试验中分别对不同桩端标高进行了测试,由此找出桩入砂土层深度的变化规律。本文系综合该项试验成果,就提高当地打入桩承载力问题提出粗浅的看法。
The selection of the bearing layer and the depth of soil penetration of the pile are important aspects of the design of the pile foundation. In terms of the sandy soil bearing layer, how to reasonably determine the depth of the penetration of the pile tip and exert its supporting effect on the pile foundation? It is an important issue that affects the reliability and economy of pile foundation engineering. In order to solve this problem, the pile foundation engineering of Nantong City has tested the different pile end elevations in the static load test of 9 piles, and thus find out the change law of the depth of the pile into the sand layer. This article summarizes the results of this experiment and puts forward a superficial view on improving the bearing capacity of locally driven piles.