Research on nonlinear mechanics design method of bolt-net-anchor coupling support for deep soft rock tunnel

SUN Xiao-ming; HE Man-chao; YANG Xiao-jie

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Research on nonlinear mechanics design method of bolt-net-anchor coupling support for deep soft rock tunnel

更新时间：2026-06-25

- Research on nonlinear mechanics design method of bolt-net-anchor coupling support for deep soft rock tunnel
- Vol. 27, Issue 7期　刊出日, (2006)
- 作者机构：
  
  1. 中国矿业大学(北京校区) 力学与建筑工程学院,北京,100083
  2. 黑龙江科技学院,哈尔滨,150027
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU223
- Online First：19 November 2013，
  
  Published：2006
- 稿件说明：
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SUN Xiao-ming, HE Man-chao, YANG Xiao-jie. Research on nonlinear mechanics design method of bolt-net-anchor coupling support for deep soft rock tunnel[J]. 2006, 27(7期　刊出日).
DOI：

SUN Xiao-ming, HE Man-chao, YANG Xiao-jie. Research on nonlinear mechanics design method of bolt-net-anchor coupling support for deep soft rock tunnel[J]. 2006, 27(7期　刊出日). DOI：

摘要

由于深部软岩巷道工程岩体介质已进入到塑性大变形阶段，其破坏主要是由于支护体与围岩之间的不耦合造成的，因此提出了锚网索耦合支护非线性设计方法。与传统的线性参数设计不同，该方法在变形设计的基础上，针对最佳耦合过程进行强度设计，提出锚网索耦合支护参数，并在施工过程中通过反馈设计进行修正。与新奥法不同，采用该设计方法进行锚网索耦合支护既能充分发挥锚网主动支护浅部围岩的能力，又能通过锚索调动深部围岩强度的支护能力，从而可以实现软岩巷道支护体与围岩在强度上、刚度上和结构上的耦合，保证软岩巷道围岩的稳定性。

Abstract

For the engineering rock mass media of soft rock tunnel has been in the plastic and large deformation stage and its deformation and fail are caused by the un-coupling between support and surrounding rock

a nonlinear mechanics design method of bolt-net-anchor coupling support is put forward; and it includes deformation design

strength design and feedback design. This design method is different from the classic design method

it is the parameters design. The coupling support parameters of bolt-net-anchor got by strength design are based on the optimum coupling procedure got by deformation design

and can be modified by feed back design in the supporting period of tunnel. Different from the new Austrian tunneling method

using this design method can realized the coupling on the strength

rigidity and structure between support and surrounding rock by bolt-net support interior surrounding rock and anchor to mobilize the intension of exterior rock.

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Related Institution

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