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| 动静载荷试验法荷载-沉降曲线分析方法研究 | |
| 引用本文： | 张学峰,马晔,闫仙丽,刘镇,钱晓明.动静载荷试验法荷载-沉降曲线分析方法研究[J].公路交通科技,2010,27(4). |
| 作者姓名： | 张学峰 马晔 闫仙丽 刘镇 钱晓明 |
| 作者单位： | 1. 交通运输部公路科学研究院,北京,100088 2. 西安建筑科技大学,陕西,西安,710055 3. 杭州公科路桥技术有限公司,浙江,杭州,310053 4. 浙江浙西高速公路管理有限公司,浙江,杭州,310014 |
| 基金项目： | 交通运输部公路科学研究院科研创新项目;;2008年北京市科技计划资助项目(D08050303450801) |
| 摘 要： | 为将准静荷载试验法中动态荷载-沉降曲线转换为静态荷载-沉降曲线,并尽量与工程实际相接近,对已有分析方法进行了适用性探讨和分析比较,在原有理论基础上提出了新的C模型分析方法,将整个试验过程中桩-土系统的阻尼系数按照理论前提随时间变化分为3段,各段分别计算,最后组合成随时间变化的阻尼系数曲线。然后根据单质点模型的平衡方程计算出静态P-S曲线。借助大型计算软件MATLAB,对具体工程实例分别采用已有方法与C模型法分别进行编程计算。计算结果表明:C模型法计算出的静态P-S曲线处于由卸载点法和起始刚度法得出的静态曲线之间,该方法能较合理地分析准静载荷试验法的荷载-沉降曲线。 |
| 关 键 词： | 道路工程 荷载-沉降曲线 C模型 准静载荷试验法 |
Analytic Method of Load-settlement Curve in Statnamic Load Testing |
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| ZHANG Xuefeng,MA Ye,YAN Xianli,LIU Zhen,QIAN Xiaoming.Analytic Method of Load-settlement Curve in Statnamic Load Testing[J].Journal of Highway and Transportation Research and Development,2010,27(4). | |
| Authors: | ZHANG Xuefeng MA Ye YAN Xianli LIU Zhen QIAN Xiaoming |
| Institution: | 1.Research Institute of Highway;Ministry of Transport;Beijing 100088;China;2.Xi'an University of Architecture and Technology;Xi'an Shaanxi 710055;3.Hangzhou Gongke Bridge Technology Co.;Ltd.;Hangzhou Zhejiang 310053;4.Hangzhou Zhexi Highways Management Co.;Hangzhou Zhejiang 310014;China |
| Abstract: | In order to convert the dynamic loadsettlement curve in statnamic load testing to a static load-settlement curve and make it as closely as possible to the practice,the existing methods were analyzed and compared.Based on the existing theory,a new C model method were proposed,in which in accordance with the theoretical premises the damping coefficient of the pile-soil system was divided into three sections during the whole course of the experiment,each section was calculated separately and finally combined i... |
| Keywords: | road engineering load-settlement curve C model statnamic load testing |
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