CAJ | 학술논문

为了研究注浆对破碎围岩巷道支护条件的改善情况，进行了围岩松动圈测试，对松动圈大小进行测定，并根据不同支护形态下巷道围岩松动圈的大小对比支护效果及实施支护后巷道围岩稳定性。结果表明，围岩碎胀变形量与松动圈大小和支护情况密切相关；注浆后松动圈厚度明显减小，未注浆段松动圈厚度为1.5 m，注浆段仅为0.4 m；松动圈大小不仅与围岩的岩性、构造、巷道断面情况等有关，还受到巷道所处范围内地应力及具体施工的影响。
위료연구주장대파쇄위암항도지호조건적개선정황，진행료위암송동권측시，대송동권대소진행측정，병근거불동지호형태하항도위암송동권적대소대비지호효과급실시지호후항도위암은정성。결과표명，위암쇄창변형량여송동권대소화지호정황밀절상관；주장후송동권후도명현감소，미주장단송동권후도위1.5 m，주장단부위0.4 m；송동권대소불부여위암적암성、구조、항도단면정황등유관，환수도항도소처범위내지응력급구체시공적영향。
In order to study the improvement of grouting for roadway support conditions of broken surrounding rock, the relaxation zone of surrounding rock is tested, the relaxation zone size is determinated, and according to the relaxation zone size of the surrounding rock in roadway under different support forms, supporting effect and stability of surrounding rock in roadway after implementing support are compared. The results show that the hulking deformation of surrounding rock is closly related with the relaxation zone size and support situation; The thickness of relaxation zone reduces obviously after grouting, in the no grouting part, the thickness of relaxation zone is 1.5 m, and it is only 0.4 m in the grouting part; The relaxation zone size, Not only is related to surrounding rock properties, structure, cross section situation of roadway and so on,but also is influenced by roadway geostress and concrete construction.