CAJ | 학술논문

为了向隧道围岩支护设计提供可靠的松动圈厚度理论依据，以茶镇隧道的工程实际为例，通过弹塑性理论分析，采用围岩深部位移测量的方法，计算了茶镇隧道围岩松动圈的分布范围，分析了茶镇隧道围岩松动圈对围岩稳定性、锚杆支护参数设计合理性的影响．研究结果表明：通过理论计算得出的松动圈厚度为1．9 m＜B＜2．0 m．
위료향수도위암지호설계제공가고적송동권후도이론의거，이다진수도적공정실제위례，통과탄소성이론분석，채용위암심부위이측량적방법，계산료다진수도위암송동권적분포범위，분석료다진수도위암송동권대위암은정성、묘간지호삼수설계합이성적영향．연구결과표명：통과이론계산득출적송동권후도위1．9 m＜B＜2．0 m．
The reliable theoretical basis of loose circle thickness for surrounding rock supporting design is studied.Taking Chazhen tunnel engineering practice as an example,using the method of deep rock displacement measurement,through the analysis and calculation of elastic plastic theory,the distribution range of surrounding rock loose circle is calculated,and the effect of the surrounding rock loose circle on the stability of surrounding rock and the design rationality of bolt support parameters is analyzed.The research results show:The thickness of the loosen zone(1.9 m<B <2.0 m)is obtained by theoretical calculation.