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Estimation of lateral capacity of rock socketed piles in layered soil-rock profile
International Journal of Geo-Engineering ( IF 2.6 ) Pub Date : 2021-04-20 , DOI: 10.1186/s40703-021-00140-9
A. R. Prakash , Kasinathan Muthukkumaran

Large diameter rock socketed piles were preferred for the purpose of transmission of a huge volume of both vertical and lateral load from superstructure to a deeper depth safely without any structural defects. A series of experimental program was conducted on model pile for studying the behaviour of the rock socketed pile under static lateral load in a soil-rock layered profile system. The model piles were instrumented with displacement and force transducers for measuring the magnitude of the pile movement and load transferred by the pile. The experimental results showed that the rock socketed pile lateral capacity has significantly affected by the depth of embedment of the pile in soil and depth of rock socket. There was a considerable increase in the lateral capacity of the pile when the depth of socketing is three times the diameter of the pile into rock with a minimum embedment. In the 3D socketed piles, the lateral capacity of the pile is almost 18 times higher than the non-socketed piles. From the experimental study, it is also observed that when the piles socketed more in to the hard strata (rock), the depth of fixity increases and the lateral displacement reduces substantially.



中文翻译:

层状土石剖面中嵌岩桩的侧向承载力估算

为了将巨大的垂直和横向载荷从上层建筑安全地传递到更深的深度而没有任何结构缺陷,首选大直径的嵌岩桩。在模型桩上进行了一系列实验程序,以研究嵌岩桩在静力横向荷载下在土石层状剖面系统中的行为。模型桩配有位移传感器和力传感器,用于测量桩运动的大小和桩传递的载荷。实验结果表明,嵌岩桩的侧向承载力受桩基在土壤中的埋深和嵌岩深度的影响很大。当承插深度为最小埋入量的成岩石直径的三倍时,桩的侧向承载力将显着增加。在3D承插式桩中,桩的侧向承载能力几乎是非承插式桩的18倍。从实验研究中,还可以观察到,当桩更多地插入硬地层(岩石)时,固定深度增加,而横向位移则大大减少。

更新日期:2021-04-20
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