[1]缪林昌,王非,吕伟华.城市地铁隧道施工引起的地面沉降[J].东南大学学报(自然科学版),2008,38(2):293-297.[doi:10.3969/j.issn.1001-0505.2008.02.022]
 Miao Linchang,Wang Fei,Lü Weihua.Ground surface settlement due to urban tunnel construction[J].Journal of Southeast University (Natural Science Edition),2008,38(2):293-297.[doi:10.3969/j.issn.1001-0505.2008.02.022]
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城市地铁隧道施工引起的地面沉降()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第2期
页码:
293-297
栏目:
土木工程
出版日期:
2008-03-20

文章信息/Info

Title:
Ground surface settlement due to urban tunnel construction
作者:
缪林昌 王非 吕伟华
东南大学交通学院, 南京 210096
Author(s):
Miao Linchang Wang Fei Lü Weihua
School of Transportation, Southeast University, Nanjing 210096, China
关键词:
地面沉降 隧道施工 固结 地层损失
Keywords:
ground settlement urban tunnel construction consolidation ground lose
分类号:
TU91;U21
DOI:
10.3969/j.issn.1001-0505.2008.02.022
摘要:
分析了城市隧道施工引起地表沉降的原因, 主要包括地层损失和在新的应力状态下土层固结与蠕变方面的原因.通常认为地层损失的体积等于隧道地表沉降槽的体积,而忽略了由于隧道施工降水排水和新的应力状态下土层固结引起的沉降变形.以矿山法施工为例,推导了隧道施工在新的状态下的土体内部孔隙水压消散的公式,进而考虑土体的固结引起的沉降变形.研究成果应用到南京地铁Ⅰ号线鼓楼-玄武门段,根据具体地质条件和矿山法施工的实施进行理论计算分析,结果表明同时考虑地层损失和土体固结变形计算的地表沉降与实测结果吻合较好.
Abstract:
The causes of the ground surface settlement due to the urban tunnel construction are analyzed, which includes two main causes, one is the ground lose, the other is the consolidation and creep of soil layers under new stress state. In general, it is assumed that the volume of ground lose during the tunnel construction is equal to the trough volume. This view neglects the effect of dewatering water, drainage of soil layers and the consolidation of soil layers under the new stress state due to the tunnel construction. The pore pressure dissipating formula during the tunnel construction is presented based on the mining method construction, it can be used to calculate the settlement of consolidation of soil layers during the tunnel construction. The calculation method has been applied to the engineering case of the Gulou-Xuanwu section of No.Ⅰline of Nanjing subway of China. The calculation results of the ground settlement are in agreement with the measured settlements because the effects of the ground lose and consolidation of soil layers under the new stress state are considered simultaneously.

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备注/Memo

备注/Memo:
作者简介: 缪林昌(1961—),男,博士,教授,博士生导师, Lc.miao@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(50478072).
引文格式: 缪林昌,王非,吕伟华.城市地铁隧道施工引起的地面沉降[J].东南大学学报:自然科学版,2008,38(2):293-297.
更新日期/Last Update: 2008-03-20