复杂地质中城门洞型隧洞围岩稳定性快速分析与设计方法

doi:10.13722/j.cnki.jrme.2014.1315

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摘要着眼于当前地下洞室发展现状，针对信息施工的关键难题——信息反馈难以满足时效性要求，提出了基于围岩各主要影响因素数值试验结果量化规律的洞室围岩应力场快速分析的思路与方法。应用系统数值试验概化出影响地下洞室应力场和变形场的八个主要因素(无断层时)，以数值试验所得结果为主样本群、以工程实测资料和专家经验为边界样本群基于神经网络技术构建无断层条件地下洞室快速分析系统。在此基础上，通过采用课题组提出的“断层对变形影响系数”的概念显著削减含断层地下洞室数值试验方案，分别构建了单/双断层地下洞室快速分析系统。综合以上三个系统和开发的快速反演和稳定性评价模块，基于VB和FORTRAN混合编程技术构建了隧道快速智能化分析评价系统。经多个实际工程验证显示出较好的可靠性和现场快速分析与评价的适用性。

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关键词 ：信息化施工, 隧道(洞), 快速智能, 神经网络, 结构面

Abstract：Focused on the current situation of the underground caverns and the key difficult problem of the information construction, a new method is put forward for the rapid analysis of the stress field of surrounding rock, which is based on the quantitative laws of the results of numerical tests under the main influence factors of the surrounding rock. Firstly, eight main influences of the stress field of the surrounding rock without fault were pointed out which is based on the systems numerical testing. Then, a Fast Analysis System for the Tunnels(FAST) without fault is build which is based upon lots of numerical test results，measured data, expertise and the powerful artificial neural network method. Further more, the FAST with one fault or two were established separately, which is benefited from the influence coefficient of deformation from fault that was introduced by our research group years ago and greatly reduce the number of the numerical experiments. After comprehension of these three FASTs and the fast inverse analysis system and the fast evaluation system, a fast intellectual analysis and evaluation system is established based on the mixed programming techniques of VB and FORTRAN. Several practical engineering applications have showed a good reliability and applicability of the system.

Key words： information construction tunnel fast automatic artificial neural network structural plane

引用本文:

李宁1, 2，刘乃飞1，张承客1. 复杂地质中城门洞型隧洞围岩稳定性快速分析与设计方法[J]. 岩石力学与工程学报, 2015, 34(07): 15-15.
LI Ning1, 2，LIU Naifei1，ZHANG Chengke1. FAST ANALYSIS AND DESIGN METHODS FOR THE STABILITY OF CITY GATE TUNNELS IN COMPLICATED GEOLOGICAL CONDITIONS. , 2015, 34(07): 15-15.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2014.1315 或 http://www.rockmech.org/CN/Y2015/V34/I07/15

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