| 竹节桩复合地基沉桩施工超孔隙水压力研究 |
| |
| 引用本文： | 叶俊能,周晔,朱瑶宏,刘干斌.竹节桩复合地基沉桩施工超孔隙水压力研究[J].水文地质工程地质,2019,0(1):103-103. |
| |
| 作者姓名： | 叶俊能 周晔 朱瑶宏 刘干斌 |
| |
| 作者单位： | 1.宁波市轨道交通集团有限公司, 浙江 宁波315012; 2.宁波大学岩土工程研究所, 浙江 宁波315211 |
| |
| 基金项目： | 国家自然科学基金项目资助(51478228) |
| |
| 摘 要： | 结合宁波轨道交通4号线东钱湖车辆段竹节桩复合地基处理试验段沉桩施工，开展了土体中超静孔压现场测试，并在考虑竹节桩竹节间空隙对竖向超静孔压分布影响的基础上，推导建立了竹节桩沉桩引起的竖向孔压离散化计算公式。利用建立的离散化计算公式对2 m桩间距试验工况的孔压进行计算，并将计算结果与测试结果进行对比，结果表明:计算结果与实测结果较为吻合，考虑竹节空隙影响的竖向超静孔压计算理论可以较好获得竹节桩沉桩施工引起的超静孔压，可为竹节桩的设计和施工提供依据。
|
| 关 键 词： | 竹节桩 沉桩施工 超孔隙水压力 |
| 收稿时间： | 2018-06-20 |
| 修稿时间： | 2018-10-08 |
A study of the excess pore water pressure during pile-sinking construction of nodular pile composite foundation |
| |
| YE Junneng,ZHOU Ye,ZHU Yaohong,LIU Ganbin.A study of the excess pore water pressure during pile-sinking construction of nodular pile composite foundation[J].Hydrogeology and Engineering Geology,2019,0(1):103-103. |
| |
| Authors: | YE Junneng ZHOU Ye ZHU Yaohong LIU Ganbin |
| |
| Affiliation: | 1.Ningbo Rail Transit Group Co., Ltd., Ningbo, Zhejiang315012, China; 2.Institution of Geotechnical Engineering, Ningbo University, Ningbo, Zhejiang315211, China |
| |
| Abstract: | In combination with the pile-sinking construction of the experimental section of the nodular pile composite foundation at the Dongqian Lake depot of Line 4 of the Ningbo rail transit line, an excess pore water pressure test was conducted and the influence of nodular inter-joint voids on the vertical pore water pressure was considered. The theory of calculating the discretization of the vertical distribution of excess pore pressure caused by nodular pile sinking was deduced. The established theory was used to calculate the 2 m pile spacing test conditions, and the calculation results were compared with the test results. The calculated results were in good agreement with the measured results. Considering the vertical excess static pore pressure calculation theory influenced by the nodular joints, nodular can be better described. The excess pore water pressure caused by the construction of piles can provide design and construction parameters for the pile foundation. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《水文地质工程地质》浏览原始摘要信息 |
|
点击此处可从《水文地质工程地质》下载全文 |
|
