Dam survey data analysis and the foundation of dam safety monitoring model are the central problem of the dam monitoring technology , they are not only monitored the dam safety work but also offered feedback information for engineering designers and are refreshened and perfected dam theories 大坝原型观测资料分析及安全监控模型的建立是安全监测工作的最终价值体现,是大坝监测技术的灵魂与核心,它不仅对大坝的安全运行起监控作用,而且还能为工程设计人员提供反馈信息,不断补充和完善坝工理论。
Foundation structure design in soft soils is a very difficult engineering problem . the elastic foundation beam method has some merits such as easy calculation pattern and definite model and m - method is fit to practical situation , so it is used comprehensively and welcome by constructors , thus m - method is recommended by many codes . but it is difficult to select a m - value to some soils , and the codes provides a scope of m - values , and they are different in varied regions and soil conditions , thus it is optional to choose m - value of a soil layer for engineering designers . so it is necessary to calculate m - values by back - analysis method using measured datu of deep foundation pit 软土地区的深基坑支护结构设计是一个十分复杂的工程问题,由于弹性地基梁法具有计算模式明确、计算过程简单的优点,尤其是m法较符合软土基坑工程的实际情况,因而受到广大工程设计人员的欢迎,大多规范也推荐此法。但是m法计算参数的选取是工程界的一大难题,一般规范都给出了m值的大致范围,而且每个地区的地质条件千差万别,因而m的取值具有很大的随意性,有必要根据一个地区的工程实测资料对m值进行反演分析,以便为地层相近或附近地区的基坑工程设计提供参考和依据。