全程注浆在隧道穿越既有建筑物中的试验研究

›› 2008, Vol. 29 ›› Issue (12): 3451-3458.

全程注浆在隧道穿越既有建筑物中的试验研究

逄铁铮^1，2

1. 北京交通大学隧道及地下工程教育部工程研究中心，北京 100044；2. 厦门路桥建设集团有限公司，厦门 361026

收稿日期:2008-01-16 出版日期:2008-12-10 发布日期:2013-08-11
作者简介:逄铁铮，男，1969年生，博士研究生，高级工程师，现任厦门市成功大道工程建设指挥部总工程师，主要从事道路桥梁设计及城市道路、桥梁、隧道建设管理工作。

Experimental study of whole process grouting used in tunnel passing through existing structures

PANG Tie-zheng^{1, 2}

1. Tunnel and Underground Engineering Research Center of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China; 2. Xiamen Road And Bridge Construction Group Co., Ltd., Xiamen 361026, China

Received:2008-01-16 Online:2008-12-10 Published:2013-08-11

摘要/Abstract

摘要： 厦门市成功大道工程是福建省2005年重点建设项目，项目由多座立交和两条特长城市隧道组成，其中莲前至梧村山隧道里程长度为3 700 m，采用双洞双向6车道标准。隧道在埔南工业区的685 m段采用跨度达34 m的浅埋连拱结构穿越地面67栋密集建构筑物。洞顶至地表的覆盖层只有7～24 m，水文、地质较差，洞顶基本为杂填土和残积亚黏土层，洞底多为全、强风化花岗岩，地下饱和水位高（局部洞身地处海平面以下20 m左右），施工风险极大。为了保证既有地面建构筑物的安全，提出了以过程控制和过程恢复为核心的全过程注浆方案，并预留104#和105#拆迁房为试验楼，采取地面注浆和洞内注浆的方法来进行过程控制和房屋抬升的试验。在现场试验中，根据全过程注浆的思路，提出了建筑物安全风险控制标准。通过室内试验比较了不同浆液的注浆效果，分析实际施工中房屋基础改造和地基注浆加固、动态跟踪注浆以及工后房屋恢复抬升的特点和效果。在注浆过程中进行实时的信息反馈和分析，进而了解注浆工艺和参数与地层加固效果和建筑物抬升效果之间的关系，得出了一系列有意义的结论。试验结果为隧道后续穿越建构筑物施工提供经验和指导，研究思路可为类似的隧道穿越工程提供一定的参考。

关键词: 全程注浆, 注浆抬升, 跟踪注浆, 恢复注浆

Abstract: Xiamen Triumph Avenue Project is a significant construction project in Fujian Province in 2005. This project consists of multi-overpass and two overlength tunnels. The tunnel from Lianqian to Wucunshan covers 3.7 km, which is the standard twin-tunnel two-way six-lane. The first stage project of Xiamen airport line located at Punan Industrial Zone contains multi-arch tunnel with width of 34 m buried in shallow depth. It passes through the bottom of 67 existing buildings and may cause great risks. The layer between the ground surface and the tunnel top is only 7?24 m of length and is bad in hydrology and geology. The top of the tunnel consists of mixed backfill soils and sedentary sub-clay layers, and the bottom consists of fully and strong weathered granites. The ground water level is high (part of the tunnel is about 20 m below sea-level). In order to guarantee the safety of existing ground surface structures, whole process grouting is put forward which aims at process control and process restoration. #104 and #105 buildings which are going to be removed are reserved as structures for experiment. The method of surface grouting and grouting from tunnel is adopted on these two buildings. According to the thought of whole process grouting, control standards for the existing structures are made. Laboratory experiment is made to compare the effect of different kinds of groutings. The effect and feature of grouting and consolidation on foundation, dynamic track grouting and restoration uplift after tunnel complete are studied. The relationship between grouting and uplift effect is also studied. The result of this experiment can provide experience and guidance for further construction of the first stage project of Xiamen airport line and the study can be adopted as reference for similar projects.

Key words: whole process grouting, uplift grouting, dynamic track grouting, restoration grouting

中图分类号:

U 459.2

逄铁铮 . 全程注浆在隧道穿越既有建筑物中的试验研究[J]. , 2008, 29(12): 3451-3458.

PANG Tie-zheng . Experimental study of whole process grouting used in tunnel passing through existing structures[J]. , 2008, 29(12): 3451-3458.

参考文献

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

本文评价

推荐阅读 10

[1]	和法国，谌文武，韩文峰，张景科. 高分子材料SH固沙性能与微结构相关性研究[J]. , 2009, 30(12): 3803 -3807 .
[2]	刘晓明，赵明华，苏永华. 软岩崩解分形机制的数学模拟[J]. , 2008, 29(8): 2043 -2046 .
[3]	叶观宝，蔡永生，张振 , . 加芯水泥土桩复合地基桩土应力比计算方法研究[J]. , 2016, 37(3): 672 -678 .
[4]	于崇，李海波，李国文，刘亚群. 大连地下石油储备库地应力场反演分析[J]. , 2010, 31(12): 3984 -3990 .
[5]	迟世春，宋振河. 土的量化记忆模型及其参数确定[J]. , 2004, 25(1): 77 -81 .
[6]	高文华，朱建群，张志敏，黄自永. 基于Hoek-Brown非线性破坏准则的软岩地基极限承载力数值模拟[J]. , 2011, 32(2): 593 -598 .
[7]	王光进，杨春和，张超，马洪岭，冒海军，侯克鹏. 粗粒土三轴试验数值模拟与试样颗粒初始架构初探[J]. , 2011, 32(2): 585 -592 .
[8]	郭明伟，李春光，王水林，栾广博. 优化位移边界反演三维初始地应力场的研究[J]. , 2008, 29(5): 1269 -1274 .
[9]	李宗利，任青文 . 自然营造力作用下岩体混凝土水力劈裂分析与探讨[J]. , 2008, 29(8): 2121 -2125 .
[10]	黎剑华，徐斌，徐满清，刘优平. 层状饱和土体中排桩对简谐荷载隔振效果分析[J]. , 2010, 31(S2): 12 -18 .