[1]陈力,吴明俊.小净距隧道下穿采空区失稳诱发建筑损坏分析[J].高速铁路技术,2026,(01):49-54,70.[doi:10.12098/j.issn.1674-8247.2026.01.007]
　CHEN Li,WU Mingjun.Analysis of Building Damage Induced by Instability in a Small-clearance Tunnel Crossing beneath Mining Goaf[J].HIGH SPEED RAILWAY TECHNOLOGY,2026,(01):49-54,70.[doi:10.12098/j.issn.1674-8247.2026.01.007]
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小净距隧道下穿采空区失稳诱发建筑损坏分析()

《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
期数:
2026年01期
页码:
49-54,70
栏目:
理论探索
出版日期:
2026-01-30

文章信息/Info

Title:
Analysis of Building Damage Induced by Instability in a Small-clearance Tunnel Crossing beneath Mining Goaf
文章编号:
1674-8247(2026)01-0049-06
作者:
陈力1; 吴明俊2
(1. 上海市城市建设设计研究总院(集团)有限公司, 上海 200125; 2.中铁二院贵阳勘察设计研究院有限责任公司, 贵阳 550002)
Author(s):
CHEN Li1;  WU Mingjun2
(1.Shanghai Urban Construction Design & Research Institute(Group)Co., Ltd., Shanghai 200125, China; 2. Guiyang Survey and Design Co., Ltd. of CREEC, Guiyang 550002, China)
关键词:
小净距隧道;  下穿采空区;  隧道失稳;  建筑损坏;  数值分析
Keywords:
small-clearance tunnel;  crossing beneath mining goaf;  tunnel instability;  building damage;  numerical analysis
分类号:
U45
DOI:
10.12098/j.issn.1674-8247.2026.01.007
文献标志码:
A
摘要:
针对隧道下穿施工“活化”煤层采空区,坍塌诱发地表建(构)筑物损坏问题,以某小净距大断面隧道下穿废弃小煤层采空区工程为背景,基于有限元软件探讨隧道、煤层采空区及建筑三者不同位置关系对建筑的变形影响。研究结果表明,(1)隧道下穿施工“活化”煤层采空区,附加地下水作用引起多次坍塌叠加扰动效应,诱发地面坍塌及建筑损坏;(2)设计时应加强并扩大超前支护角度保护范围,加固中岩柱,施工前应转移居民;(3)建筑整体倾斜度较小,但变形较大,巷道与建筑距离越近,对建筑的变形影响越大;(4)采空区一侧隧道先行施工对建筑的影响小于后行施工对建筑的影响。
Abstract:
To address the issue of tunnel construction “activating” mining goaf and inducing collapses that damage surface buildings/structures, this paper took a small-clearance large-section tunnel crossing beneath an abandoned small coal seam goaf as the study case, and explored the impact of varying spatial relationships among the tunnel, coal seam goaf and buildings on the deformation of those buildings based on finite element software. The findings reveal that:(1)Tunneling construction can “activate” the goaf, with additional groundwater effects triggering multiple collapses and cumulative disturbances, thus leading to ground subsidence and building damage.(2)During design, the scope of advanced support should be strengthened and expanded, the middle rock pillar should be reinforced, and residents should be relocated prior to construction.(3)Although the overall tilt of buildings is relatively minor, the deformation is significant. The closer the tunnel is to the building, the greater its influence on building deformation.(4)The impact on the building is smaller when the tunnel on the goaf side is constructed first, compared to when it is constructed later.

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备注/Memo

备注/Memo:
收稿日期:2023-04-27
作者简介:陈力(1987-),男,高级工程师。
更新日期/Last Update: 2026-01-30