深部复合地层巷（隧）道非协调变形控制方法研究

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中图分类号：U455.7 文献标志码：A 文章编号：2095-2945（2025）23-0054-04

Abstract：Intheprocessofcontroling thestabilityofsurroundingrocksduringtunnel（tunel）construction，duetothe diferencesinphysicalandmechanicalpropertiesofsurroundingrocksbetweendiferentstrataundercompositestratum conditions，therockextrusiondeformationaroundthetunnelindepcompositestratumpresentsthecharacteristicsof incompatibledeformation.Aimingat theabove problems，this paperproposesa jointsupport scheme of"lining + non-uniform shearanchor，andverifiesthecontrolefectofthismethodthroughnumericalsimulation.Theresearchresultsshowthatthe "lining + non-uniformshear anchor"supprt greatlyreduces the tensile stressonthe insideof the lining，improves the local stressonthe lining，andweakenstheeccentricpressurephenomenon.Comparedwith liningsupprt，thedeformationaroundthe tunnelissmaleranduniform.Theanchorrodsimprovethestressonthesuroundingrockandlining，makingthedeformation morecordinated.Aftercombinedsupport，therockstressaroundthesoftrocksidetunelissignificantlyreduced，andthe anchorrodsimprovetheintegityoftheuppersoftrock，makingthestressfluctuationsinthesuroundingrocksmaler.Anchors incombinedsupportefectivelycontrolsoftrockandstructural surfaces，inhibitshearandslipofrock massreduceincomptible deformationofcompositerock massandatthesametimeimproveliningstress，reducebiaspressure，andensureliningsafety.

Keywords： stability control; incompatible deformation; combined support; numerical simulation; lining bias

随着国家经济持续稳健发展，基础设施建设与国防建设全面推进，煤矿巷道、输水隧道等民生工程以及国防工程项自不断涌现。（剩余4360字）