群锚对断层的加固机理分析及工程应用

An Analysis of Strengthening Mechanism of the Pre-Stressed Multi-Bolts and its Application to Engineering

应用前文“群锚加固机理数值试验研究”中的力学模型与分析思路，对断层在群锚作用下的加固机理与效果进行了数值试验分析与探讨；并应用该模型与数值分析方法，对李家峡左岸泄水道边坡的开挖与锚固进行了三维分期开挖与加固的数值仿真分析。文中验证了预应力对实际边坡的加固效果，分析了加固后边坡的局部与整体的稳定性态与安全储备。该项研究可作为其它工程的借鉴。

Mechanical model and analysis thoughts in the previous paper concerning“strengthening mechanism numerical tests by multi-bolts” are used to conduct the numerical testand discussion of strengthening mechanism and effects of pre-stressed faults by multi-bolts. Thismodel and the numerical method are used to carry out the numerical simulation analysis of 3Dexcavation and strengthening of discharge canal slopes on the left bank of Lijiaxia Gorge. Thestrengthening effect of prestress upon actual slopes is tested. The local and whole stability andsafety of strengthened slopes are also analysed. This research results can be used as the referencefor other projects.