桩基动力检测新技术在我室的发展

本文简要地介绍了中国科学院武汉岩土力学研究所岩石动力学研究室自80年代以来,在发展桩基动力检测技术所进行的工作。对桩基动力检测的应力波理论做了系统的研究。其中包括理论分析、数值模拟、模型试验、现场试验和工程应用。无论在理论分析,还是在测量技术和工程应用等方面均获得了一系列重要成果。特别是桩基承载力计算软件 WANG-PCP,是个半解析半数值的计算方法,突破了以前的分析模式,大大地简化了计算过程,易于被广大工程技术人员所掌握,同时提高了计算的精度。桩基完整性快速定量分析软件 WANG-PIP,使桩基完整性快速定量分析成为可能,属国际首创,并已获得美国版权。研制成功了 RAP 型动力验桩仪系列,在加速度和动应变测量方面均已达到定量分析的要求。并已推广应用到十几个省市地区,深受广大用户的好评。同时进行了大量的工程应用和试验,做了上万根桩的动力检测工作,积累了丰富的工程经验,提高了动力验桩测量和分析的水平。

Development of Dynamic Pile Detection Technology in Department of Rock Dynamics at IRSM

The research work on dynamic pile detection in the Department of Rock Dynamics,Institute of Rock and Soil Mechanics Academia Sinica,was introduced in this paper.A series of important results of theoretical ana- lyses,numerical,model tests,in-sire tests and engineering applications were obtained.The program of pile capacity,WANG-PCP,designed by the author is a semi-analytical and semi-numerical method,in which the computation process has been greatly simplified.Therefore this program has higher accuracy and is easily used by civil engineers.The program of quantitative analysis for pile integrity,WANG-PIP can give se- verity and location of damage in pile and estimate the performance of the soil below pile toe from the reflection at pile tip. Also we bare made the pile detection tester of type RAP,in which the accuracies of acceleration and dy- namic strain measurements have satisfied the requirements for quantitative analyses of pile capacity and integrity.