论文部分内容阅读
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。
At present, the common methods for determining the consolidation coefficient are the time logarithm method and the time square root method, both of which are plotting methods and are greatly influenced by human factors. Based on the one-dimensional consolidation theory of the terza sand foundation, the relationship between the settlement rates of the foundation consolidation at any two adjacent moments is deduced. By using the least square method to process the data, a method of calculating the soil consolidation coefficient Methods. Finally, the rationality and feasibility of the project are verified by the application of the engineering example. The results show that the method is effective and does not need to be plotted. It is simple and easy to process and can process the test data quickly. At the same time, this method only needs to test the data within 1 h of the previous period, which can reduce the number of readings and speed up the testing process.