| 止水-加强型土钉墙在软弱土层基坑支护中的应用研究 |
| |
| 引用本文： | 周宏益,吴厚信.止水-加强型土钉墙在软弱土层基坑支护中的应用研究[J].探矿工程,2009,36(8):46-50. |
| |
| 作者姓名： | 周宏益 吴厚信 |
| |
| 作者单位： | [1]广东省物料实验检测中心,广东广州510080; [2]广东省地质建设工程勘察院,广东广州510080 |
| |
| 摘 要： | 止水-加强型土钉墙是由土钉墙和止水帷幕组成的一种新型支护体系，具有强度高、止水效果好和比较经济的特点，适用于淤泥和砂层等软弱地层基坑支护工程。结合广州地区某基坑特征，分析了止水-加强型土钉墙的支护机理和受力特点，指出止水-加强型土钉墙是通过压力注浆锚杆（管）、搅拌桩和钢管桩的共同作用，使加筋范围内具有近似于“重力式挡土墙”的特征。最后通过基坑监测数据表明此支护体系有足够的安全储备，可推广于类似地层基坑支护工程.
|
| 关 键 词： | 基坑支护 止水-加强型土钉墙 水泥土搅拌桩 边坡稳定 复合土体 |
| 收稿时间： | 2009/6/21 0:00:00 |
| 修稿时间： | 2009/6/25 0:00:00 |
Application of Reinforced Impervious Soil-nailing Wall in Soft-soil Foundation Pit Support |
| |
| ZHOU Hong-yi and WU Hou-xin.Application of Reinforced Impervious Soil-nailing Wall in Soft-soil Foundation Pit Support[J].Exploration Engineering(Drilling & Tunneling),2009,36(8):46-50. |
| |
| Authors: | ZHOU Hong-yi and WU Hou-xin |
| |
| Institution: | ZHOU Hong-yi , WU Hou-xin( 1. Guangdong Proviee Material Testing Center, Guangzhou Guangdong 510080, China; 2. Guangdong Geological Engineering Investigation Institute, Guangzhou Guangdong 510080, China) |
| |
| Abstract: | The reinforced impervious soil-nailing wall is a new type of supporting system composed of soil nail and impervi- ous wall, which has high water impermeability with high strength but low cost, and is suitable to foundation pit supporting engineering in silt and sand formation. Analysis was made on supporting mechanism and stress characteristics of the rein- forced impervious soil-nailing wall in combination with a case of foundation pit engineering in Guangzhou, and conclusion was drawn that the characteristics of reinforced impervious soil-nailing wall, which was similar to ＇ gravity retaining wall＇ in range of bolt, came from the interaction of pressed grouting bolt, mixing piles and steel pipe pile. The monitoring data show that this foundation supporting system has sufficient safety reservation, and can be extended to foundation pit supporting project in similar formation. |
| |
| Keywords: | foundation pit supporting reinforced impervious soil-nailing wall cement-soil mixing pile slope stability composite soil |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《探矿工程》浏览原始摘要信息 |
| 点击此处可从《探矿工程》下载免费的PDF全文 |
