| 地铁区间隧道水平旋喷预加固效果数值模拟 |
| |
| 引用本文： | 吴波,高波,骆建军.地铁区间隧道水平旋喷预加固效果数值模拟[J].西南交通大学学报,2004,39(5):605-608. |
| |
| 作者姓名： | 吴波 高波 骆建军 |
| |
| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031 |
| |
| 基金项目： | 中铁四局集团有限公司科研基金(2002 03)的资助. |
| |
| 摘 要： | 为了解水平旋喷桩预加固隧道围岩的力学效果，针对深圳地铁大剧院—科学馆区间隧道水平旋喷预加固工程实例，将旋喷桩简化为厚0．5m的预支护结构，借助三维弹塑性有限元程序，对有无水平旋喷桩加固时隧道开挖引起的变形进行了对比分析．分析结果表明，隧道施工过程中，有旋喷桩时，拱顶和地表最大沉降减小50％左右，洞周塑性区范围大大缩小。
|
| 关 键 词： | 区间隧道 水平旋喷桩 加固效果 数值模拟 |
| 文章编号： | 0258-2724(2004)05-0605-04 |
Numerical Simulation of Reinforcing Effect of Horizontal Drilling Jet-Grouting Pegs on Shenzhen Metro Tunnel between Stations |
| |
| WU Bo,GAO Bo,LUO Jian-jun.Numerical Simulation of Reinforcing Effect of Horizontal Drilling Jet-Grouting Pegs on Shenzhen Metro Tunnel between Stations[J].Journal of Southwest Jiaotong University,2004,39(5):605-608. |
| |
| Authors: | WU Bo GAO Bo LUO Jian-jun |
| |
| Abstract: | To explain the reinforcing effect and mechanism of horizontal drilling jet-grouting pegs on surrounding rock around a tunnel, as an example, the reinforcing result of horizontal drilling jet-grouting pegs for Shenzhen metro tunnel between Dajuyuan and Kexueguan stations was analyzed with the 3D elastoplastic FEM (finite element method), and deformations induced by tunnel excavating with horizontal drilling jet-grouting pegs or not were compared. In the analysis, jet-grouting pegs were simplified as solid support with a thickness of 0.5 m. The numerical simulation result shows that the maximum excavation-induced settlements of vault and ground surface are reduced to 50% or so and plastic area in surrounding rock is reduced greatly when horizontal drilling jet-grouting pegs are used. |
| |
| Keywords: | metro tunnel between stations horizontal drilling jet-grouting peg reinforcing effect numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
