应力流守恒原理及地下洞室群支护结构设计方法

doi:10.3973/j.issn.2096-4498.2019.S2.029

隧道建设（中英文） ›› 2019, Vol. 39 ›› Issue (S2): 220-227.DOI: 10.3973/j.issn.2096-4498.2019.S2.029

应力流守恒原理及地下洞室群支护结构设计方法

刘建友¹, 吕　刚¹, 赵　勇², 王　婷¹

(1. 中铁工程设计咨询集团有限公司, 北京　100035; 2. 中国铁路经济规划研究院, 北京　100844)

收稿日期:2019-05-28 出版日期:2019-12-31 发布日期:2020-04-04
作者简介:刘建友(1982—), 男, 江西抚州人, 2010 年毕业于中国科学院研究生院, 地质工程专业, 博士, 高级工程师, 主要从事隧道及地下工程的设计和研究工作。E-mail: 13522182378@ 163. com。
基金资助:
中国铁路总公司科技研究开发计划重大课题(2014G004-C)

Principle of Stress Flow Conservation and Design Method for Support Structure of Underground Cavern Group

LIU Jianyou¹, LYU Gang¹, ZHAO Yong², WANG Ting¹

(1. China Railway Engineering Consulting Group Co., Ltd., Beijing 100035, China; 2. China Railway Economic and Planing Research Institute, Beijing 100844, China)

Received:2019-05-28 Online:2019-12-31 Published:2020-04-04

摘要/Abstract

摘要：

为解决复杂洞室群各洞室之间岩墙、岩板的受力计算和稳定性分析的难题,基于力学平衡的思想提出应力流守恒原理,即隧道开挖前后任意水平剖面围岩竖向应力流和任意竖直剖面的水平应力流将保持不变,从而计算洞室群中各个岩墙、岩板、岩柱的受力,并根据其稳定性设计支护结构措施。京张高铁八达岭长城站地下洞室群支护结构设计结果表明,与传统经验法和数值模拟法设计相比,基于应力流守恒原理的洞室群支护结构设计方法具有计算便捷、安全可靠的优点。

关键词: 应力流守恒, 地下洞室群, 岩墙, 岩板, 支护结构设计

Abstract:

In order to calculate the stress and analyze the stability of the rock wall and rock plate between the underground caverns, the principle of stress flow conservation, i. e. the vertical stress flow of surrounding rock of arbitrary horizontal section and the horizontal stress flow of arbitrary vertical section remain unchanged before and after tunnel excavation, is put forward based on the idea of mechanical balance. Thus, the force of each rock wall, plate and pillar in the cavern group is calculated, and the supporting structure measures are designed according to their stability. The design results of underground cavern group in Badaling Great Wall Station on Beijing-ZhangjiakouHigh-speed Railway show that, compared with the traditional empirical method and numerical simulation method, the support structure design method based on the principle of stress flow conservation has the advantages of convenient calculation, safety and reliability.

Key words: stress flow conservation principle, underground cavern group, rock wall, rock plate, support structure design

中图分类号:

U 45

刘建友, 吕刚, 赵勇, 王婷. 应力流守恒原理及地下洞室群支护结构设计方法[J]. 隧道建设, 2019, 39(S2): 220-227.

LIU Jianyou, LYU Gang, ZHAO Yong, WANG Ting. Principle of Stress Flow Conservation and Design Method for Support Structure of Underground Cavern Group[J]. Tunnel Construction, 2019, 39(S2): 220-227.

[1]	柴喜林. 不同地质条件下小净距隧道施工方案[J]. 隧道建设, 2009, 29(增刊2): 184-188.
[2]	杨德春, 唐琪. 浅析盾构始发井设计与始发技术应用[J]. 隧道建设, 2007, 27(增刊): 307-313.
[3]	干昆蓉, 杨毅, 李建设. 某隧道岩溶突水机理分析及安全岩墙厚度的确定[J]. 隧道建设, 2007, 27(3): 13-16,50.

应力流守恒原理及地下洞室群支护结构设计方法

Principle of Stress Flow Conservation and Design Method for Support Structure of Underground Cavern Group

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