“新编凯斯波动分析程序”的编制与应用

The Editorship and Application of “New Pile Wave Analysis Program”

从提高动测桩的功能和精度,深入研究桩-土相互作用机理出发,作者开展了波动方程分析程序的编制和研究。作者采用了凯普威普(CAPWAP C)程序中的一些基本假设和基本模型,而在一些模型和方法上作了某些改进,在此基础上提出了“新编凯斯波动分析程序”。该程序可以解决一般凯斯法(Case method)不能解决的问题:变断面桩;桩身沿长度方向上材料不同的桩;桩身较长的桩(25m 以上)。可以提供较为深入的更全面的数据:单桩总静阻力;桩侧静摩阻力;桩端端承力;各土层的摩阻力,…,等。本文叙述了“新编凯斯波动分析程序”的编制目的,基本原理与模型,计算步骤。并提供了在某工程实例中的应用情况。

To enhance the accuracy and function of the measuring pile and to study more ab- out the pile-soil action mechanism,the authors have studied the wave equation of pile driving.Within some hyposithese of CAPWAP C and some new viewpoints,“New Pile Wave Analysis Program”-NPWAP can resolve some problems which case method cannot, such as:piles with variable cross-sections;piles consisting different materials along their lengths;long pile The new program can provide more accurate and comprehensive data of piles,the whole static resistance of a single pile,the static skin resistance of piles,the skin resistances of each soil layer,the end bearing capacity of piles and so on. This article explains the purpose,theory,math.model and algorithm of NPWAP and then gives an engineering practice.