Parameters Optimization of Curtain Grouting Reinforcement Cycle in Yonglian Tunnel and Its Application
Parameters Optimization of Curtain Grouting Reinforcement Cycle in Yonglian Tunnel and Its Application
复制标题
永连隧道帷幕注浆加固循环参数优化及应用
DOI：
10.1155/2015/615736
复制
发表时间：
2015-05
影响因子：
--
通讯作者：
刘建国
中科院分区：
文献类型：
--
作者：
张霄;张乾青;王倩;刘建国
从工程实际出发，帷幕注浆法是治理地质灾害的一种有效方法，可以提高围岩的强度和抗渗能力。注浆加固周期的最佳参数尤其是加固周期厚度的选择是帷幕注浆设计中最令人感兴趣的研究领域之一。基于流固耦合理论和正交分析方法，分析了加固圈厚度、弹性模量和渗透率对注浆后隧道涌水量及围岩稳定性的影响。将注浆后隧道的涌水量作为注浆加固圈的性能评价指标，得出渗透性是影响注浆加固圈性能的最重要因素，其次是加固圈厚度和弹性模量。利用COMSOL软件计算了不同加固圈厚度条件下的孔隙水压力场、应力场和围岩塑性区。帷幕灌浆加固周期的最佳加固厚度和渗透率可采用8 m和围岩渗透率的1/100。工程实例可供类似工程参考。
For practical purposes, the curtain grouting method is an effective method to treat geological disasters and can be used to improve the strength and permeability resistance of surrounding rock. Selection of the optimal parameters of grouting reinforcement cycle especially reinforcement cycle thickness is one of the most interesting areas of research in curtain grouting designs. Based on the fluid-structure interaction theory and orthogonal analysis method, the influence of reinforcement cycle thickness, elastic modulus, and permeability on water inflow of tunnel after grouting and stability of surrounding rock was analyzed. As to the water inflow of tunnel after grouting used as performance evaluation index of grouting reinforcement cycle, it can be concluded that the permeability was the most important factor followed by reinforcement cycle thickness and elastic modulus. Furthermore, pore water pressure field, stress field, and plastic zone of surrounding rock were calculated by using COMSOL software under different conditions of reinforcement cycle thickness. It also can be concluded that the optimal thickness of reinforcement cycle and permeability can be adopted as 8 m and 1/100 of the surrounding rock permeability in the curtain grouting reinforcement cycle. The engineering case provides a reference for similar engineering.
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DOI：
--
发表时间：
2009
期刊：
--
影响因子：
--
作者：
Zhang Min-qing
通讯作者：
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DOI：
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发表时间：
1993
期刊：
International water power & dam construction
影响因子：
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作者：
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通讯作者：
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DOI：
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发表时间：
2012
期刊：
Chinese journal of rock mechanics and engineering
影响因子：
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作者：
Zhang Chengping
通讯作者：
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影响因子：
4.5
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K. Terzaghi
通讯作者：
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DOI：
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发表时间：
2011
期刊：
Chinese journal of rock mechanics and engineering
影响因子：
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作者：
Zhang Gong-shi
通讯作者：
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