| 浆固碎石桩复合地基沉降分析 |
| |
| 引用本文： | 温世清,刘汉龙,闫春雷,周元.浆固碎石桩复合地基沉降分析[J].解放军理工大学学报,2012,0(1):92-96. |
| |
| 作者姓名： | 温世清 刘汉龙 闫春雷 周元 |
| |
| 作者单位： | 1.河海大学 岩土力学与堤坝工程教育部重点实验室， 江苏 南京210098； 2.河海大学 土木与交通学院， 江苏 南京 210098;
3.解放军理工大学 工程兵工程学院， 江苏 南京 210007； 4.舟山市港航管理局， 浙江 舟山 316000 |
| |
| 基金项目： | 江苏省自然科学创新学者攀登基金项目（BK2008040）. |
| |
| 摘 要： | 军理工大学 工程兵工程学院， 江苏 南京 210007； 4.舟山市港航管理局， 浙江 舟山 316000)
摘要：为研究浆固碎石桩复合地基沉降特性，首先建立了路堤荷载作用下桩土复合地基计算模型，并对桩土复合地基各部分变形协调特性进行了分析，随后按照圆形承载板作用下半空间体位移的解，对路堤荷载下复合地基各部分沉降进行分析，建立了桩土变形协调方程，推导出荷载作用下桩身轴力、桩端反力和桩侧摩阻力的计算公式。在考虑注浆渗透改善作用和桩体等效半径后，建立了复合地基沉降的计算公式。现场试验表明，实测值与理论计算值相吻合。
|
| 关 键 词： | 浆固碎石桩 复合地基 地基沉降 |
| 收稿时间： | 2011-04-02 |
| 修稿时间： | 2011-04-02． |
Settlement analysis of composite foundation reinforced by grouted gavel pile |
| |
| WEN Shi-qing,LIU Han-long,YAN Chun-lei and ZHOU Yuan.Settlement analysis of composite foundation reinforced by grouted gavel pile[J].Journal of PLA University of Science and Technology(Natural Science Edition),2012,0(1):92-96. |
| |
| Authors: | WEN Shi-qing LIU Han-long YAN Chun-lei and ZHOU Yuan |
| |
| Institution: | 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University,
Nanjing 210098, China； 2.College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China；
3. Engineering Institute of Crops of Engineers， PLA Univ. of Sci. & Tech., Nanjing 210007, China；
4.Zhoushan Port and Shipping Administration, Zhoushan 316000, China |
| |
| Abstract: | To sesearch the settlement characteristic of composite foundation by grouted gavel pile, firstly the calculation model of the composite foundation under embankment loads was established and the settlement characteristic of the different parts of the composite foundation was analyzed. Then based on the solution of the settlement in half space under the circular bearing plate, the settlements of the different parts of the composite foundation under loads were analyzed, and the formula of the axial force, the counterforce of the pile head and the side friction along the grouted gravel pile were derived. With the consideration of permeation grouting and equivalent radius, the settlement formula of the composite foundation was established. The results of the local tests prove that the theoretical values are close to the actual measurement results.Therefore the equations deduced in this paper are reasonable and practicable. |
| |
| Keywords: | grouted gravel pile composite foundation settlement of foundation |
|
| 点击此处可从《解放军理工大学学报》浏览原始摘要信息 |
| 点击此处可从《解放军理工大学学报》下载免费的PDF全文 |
