低应变法动测桩承载力的应用前景探讨

Research on Application Prospect for Estimating Pile BearingCapacity by Lon Strain Dynanic Testing

从工程实践需要、应用研究现状、技术水平以及规范情况等方面,对低应变法动测桩承载力的意义、作用、存在问题进行了探讨.认为当前动测技术水平不够高、质检机构过滥、规范条文过粗,是导致建筑市场对动测法缺乏信心的主要原因.除了进行有效的技术管理外,尚应着力解决低应变法动测桩承载力的基本手段、分析方法等问题.关键在于确定方法的适用条件,努力做到程序化,只有这样,才能使低应变动测法得到健康、稳步的发展,更好地为经济建设服务.

The sigmficance,function and problems of low strain dynamic testing of pile beering capacity are discussed in the need of engineering practices,the regulations,states of application and research.The main reason for construction market to lack confidence in dynamic testing methods is that the level of techinques of dynamic testing is low ,the number of testing stations is too much,and the clause of regufations is not in detail.For the study development of low strain dynqmic testing methods to serve well the economic development,the basic means of analysis and test in estimating pile bearing capacity by low strain dynamic testing are further studied,lying in that applicable conditions must be determined and the working procedure must be programmed.