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中文摘要：
目前确定固结系数的常用方法是时间对数法和时间平方根法,这两种方法均为作图法,受人为因素的影响较大。从太沙基一维固结理论出发,推导出了任意相邻两时刻地基固结沉降速率之间的关系式,并通过用最小二乘法处理数据,得到了一种计算地基土体固结系数的方法。最后,通过工程实例应用对其合理性和可行性进行了验证,结果表明,该方法计算效果良好,且无需作图,简便易行,可以对试验数据进行快速处理。同时,该方法只需试验前期1 h之内的数据,可以减少测读次数,加快试验进程。
英文摘要：
At present,the common methods for evaluating consolidation coefficient are the logarithm of time and the square root of time methods,both of which are graphical methods.In these two methods,there are some large influences of the man-made factors during graphical construction.The relationship between settlement-velocity of arbitrary moment and settlement-velocity of next moment is developed based on the one-dimensional consolidation theory,which provides a new method for evaluating consolidation coefficient by analyzing the measured data with the least square method.Then the rationality of the new method is verified through project cases study;and the results indicate that the new method can determine the consolidation coefficient with high accuracy and convenience to use.In addition,when the new method is adopted for evaluating consolidation coefficient,the latter measured data after an hour is not necessary,which means that the process of consolidation test can be accelerated.
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