中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2010, Vol. 29 ›› Issue (5): 697-699.

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浅埋偏压隧道口的软弱围岩综合加固处治研究

王伟1,2, 杨转运1,3, 易丽云3, 刘会3   

  1. 1.重庆交通大学(桥梁)结构工程重点实验室, 重庆 400074; 2.江西省交通设计院, 江西 南昌 330002; 3.四川建筑职业技术学院, 四川 德阳 618000
  • 收稿日期:2010-04-11 修回日期:2010-07-28 出版日期:2010-10-15 发布日期:2015-01-22
  • 作者简介:王伟(1968—),男,江西上饶人,高级工程师,从事公路工程设计技术工作。E-mail:zhuanyun@gmail.com。
  • 基金资助:
    重庆交通大学(桥梁)结构工程重点实验室开放基金资助项目( CQSLBF-Y07-3)

Comprehensive Strengthening Treatment of Soft Surrounding Rocks at Shallow and Unsymmetrical Loading Tunnel Entrance

WANG Wei1,2, YANG Zhuan-yun1,3 , YI Li-yun3, LIU Hui3   

  1. 1.Key Laboratory of Bridge Structure Engineering, Chongqing Jiaotong University, Chongqing 400074, China; 2.The Communications Design Institute of Jiangxi Province, Nanchang 330002, Jiangxi , China; 3.Sichuan College of Architecture Technology, Deyang 618000, Sichuan, China
  • Received:2010-04-11 Revised:2010-07-28 Online:2010-10-15 Published:2015-01-22

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摘要： 以夹坑隧道浅埋偏压段隧道洞口施工为例,依据隧道地质条件,综合利用砂浆锚杆加小导管注浆加固边仰 坡、反压护道处治偏压技术、地表注浆、大管棚超前预加固围岩、预留核心土多台阶开挖技术、隧道拱部加固采用超 前小导管注浆、径向小导管注浆及临时施做仰拱支护等综合治理加固和超前支护技术措施,并且通过施工监控围 岩和地表变形数据,动态反馈施工加固的效果。

关键词: 隧道, 浅埋偏压, 围岩支护, 加固

Abstract: By means of strengthening the monitoring and measurement, technical problems of Jiakeng Tunnel, such as mortar bolt with a small catheter grouting slope around, the backfill pressure in unsymmetrical loaded zone, surface pre-grouting coordinated with pipe-shed, reserved the core soil excavation, pre-grouting and temporary supporting of invert, are successfully solved by excavation construction technology. Reinforcing effect and observational method has been shown by analyzing monitoring data such as the ground settlements, the vault subsidence, and the horizontal convergence. The results show that those measures ensure the safety of construction and accelerate the progress of the projects

Key words: tunnel, shallow tunnel unsymmetrical loading, surrounding rock support, streng thening

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