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树脂锚杆在隧道大变形控制中的应用研究周莉（贵州省公路局，贵州 贵阳 5
树脂锚杆在隧道大变形控制中的应用研究周莉（贵州省公路局，贵州 贵阳 550081 ）摘要：为研究隧道大变形控制最优优化方案，本文通过对锚杆支护力学机理进行分析，基于有限元数值计算软件对各支护方案进行对比研究。研究结果表明，在采用普通砂浆锚杆+树脂锚杆的组合支护形式对隧道进行支护时，若锚杆的设计长度有限，此时锚杆加密的方案较锚杆加长的方案更能有效控制围岩变形；但若对锚杆长度可适当再增加时，此时锚杆加长方案则可对围岩变形起到实质性加固，比锚杆加密方案可取。关键词：锚杆支护；隧道工程；变形控制；数值分析
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Research on the Application of Resin Anchor Rod in Tunnel Large Deformation Control <br>Zhou Li <br>(Guizhou Provincial Highway Bureau, Guiyang 550081, Guizhou) <br>Abstract: In order to study the optimal optimization plan for tunnel large deformation control, this paper analyzes the mechanical mechanism of bolt support based on The finite element numerical calculation software compares and researches the support schemes. The research results show that when the combined support form of ordinary mortar bolt + resin bolt is used to support the tunnel, if the design length of the bolt is limited, the solution of bolt densification is more effective than the plan of lengthening the bolt. Control the deformation of surrounding rock; but if the length of the anchor rod can be appropriately increased, the lengthening of the anchor rod can substantially strengthen the deformation of the surrounding rock at this time, which is preferable to the dense anchor rod. <br>Keywords: bolt support; tunnel engineering; deformation control; numerical analysis
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The application of resin anchor bar in tunnel deformation control is studied<br>Zhou Li<br>(Guizhou Provincial Highway Bureau, Guiyang, Guizhou 550081)<br>Abstract: In order to study the optimal optimization scheme of tunnel large deformation control, this paper compares each support scheme based on finite meta-numerical calculation software by analyzing the algorithm of anchor rod support. The results show that when the tunnel is supported by the combination support form of ordinary mortar anchor and resin anchor, if the design length of the anchor bar is limited, the anchor encryption scheme can control the surrounding rock deformation more effectively than the anchor rod length, but if the anchor rod length can be appropriately increased again, then the anchor bar lengthing scheme can play a substantial reinforcement of the surrounding rock deformation, which is desirable than the anchor rod encryption scheme.<br>Keywords: anchor support, tunnel engineering, deformation control, numerical analysis
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Study on Application of resin bolt in large deformation control of tunnel<br>Zhou Li<br>(Guizhou Provincial Highway Bureau, Guiyang, Guizhou 550081)<br>Abstract: in order to study the optimal scheme of tunnel large deformation control, this paper analyzes the mechanical mechanism of bolt support, and makes a comparative study of various support schemes based on the finite element numerical calculation software. The research results show that when the combined support form of ordinary mortar bolt and resin bolt is used to support the tunnel, if the design length of the bolt is limited, the bolt densification scheme can more effectively control the deformation of surrounding rock than the bolt lengthening scheme; but if the bolt length can be appropriately increased, the bolt lengthening scheme can substantially strengthen the deformation of surrounding rock than the bolt lengthening scheme The encryption scheme is desirable.<br>Key words: bolt support; tunnel engineering; deformation control; numerical analysis<br>
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