锤击沉桩施工参数的相关性探讨

发布时间：2018-04-05 17:45

本文选题：锤击沉桩　切入点：锤击能量　出处：《水运工程》2017年11期

【摘要】：从动能守恒和动量守恒出发,基于一定的假设条件,分析锤击沉桩过程中施工参数间的相关性,如桩锤质量和桩基质量、锤击能量和桩基贯入度、桩锤质量和贯入度、锤击应力和桩基贯入度等。结果表明:通过计算得出的锤击力和锤击应力,选择合适的锤型和锤击能量可保证顺利沉桩;预判桩基在一定岩(土)层条件下可能产生的贯入度,为锤击沉桩过程中的贯入度控制标准提供依据;结合贯入度控制标准,计算出在锤击沉桩过程中的能量消耗,为选锤标准提供依据;根据确定的桩型和桩锤来选择合理的桩垫材料,使其在锤击沉桩过程中发挥最好的效能。
[Abstract]:Based on the conservation of kinetic energy and momentum, and based on certain assumptions, the correlation between construction parameters in the process of hammering pile sinking is analyzed, such as pile hammer mass and pile foundation mass, hammer energy and penetration degree of pile foundation, pile hammer mass and penetration degree.Hammering stress and penetration of pile foundation, etc.The results show that by calculating the hammer force and hammer stress, the proper hammer type and hammering energy can be selected to ensure the smooth piling, and the penetration degree of pile foundation under certain rock (soil) layer condition can be forecasted.This paper provides the basis for the control standard of penetration in the process of hammer driving pile, calculates the energy consumption in the process of hammer driving pile, and provides the basis for selecting hammer standard.According to the determined pile type and pile hammer, the reasonable pile cushion material is selected to make it play the best effect in the process of hammering pile sinking.
【作者单位】：中交上海航道勘察设计研究院有限公司;
【分类号】：U655.55

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