【摘要】 三轴试验是测试土的抗剪强度的重要方法之一,该试验可以直接测出孔隙水压力,但由于受土的内部结构及测试技术等因素的影响,孔隙水压力值波动很大。本文重点从饱和方法、端部约束、土剪胀、土剪缩等方面分析了其对孔隙水压力的影响,并提出了应对措施,分析所得结果可供工程技术人员参考,以提高土体三轴试验精度。更多还原

【Abstract】 Tri-axial test is to test the shear strength of soil.Its one of the important methods which can directly measure the pore water pressure,but due to the internal structure of soil and testing technology,the influence of such factors as pore water pressure fluctuation is very big.Focus on saturated methods,end constraint,soil shear dilatancy,soil shrinkage aspects,the author analyzes the influence of pore water pressure,and puts forward the countermeasures.The analysis of results obtained can be used for reference in the engineering and technical personnel in order to improve the precision of tri-axial test of soil.更多还原