The factors which affect rock type are random and fuzzy.
影响围岩类别的因素有很多,并且具有高度的随机性和模糊性.
MPa and nearly horizontal, the jacking strength is about 6.
最小主应力状态为近水平; 测点洞段围岩的抗劈裂强度一般为6.
Under this condition, the field measuring displacement actually reflects the viscoelastic - plastic character.
在这种情况下, 工程开挖后的现场量测位移,实际上反映了围岩的粘弹塑性特性.
Host - rock alteration is made up of retrograde and mineralized alteration.
围岩蚀变包括退化蚀变和矿化蚀变.
At the same time, the spatial distribution of deformation modulus is obtained.
最后, 初步得出了此巷道围岩变形模量的空间分布规律.
Must open original trash hole and country rock segregation.
必须将原来的废物坑与围岩隔离开.
We confirmed reasonable support parameters in terms of theory of broken - rock circle.
根据围岩松动圈范围合理选择锚喷支护结构,确定了合理的支护参数.
Thirdly , the process of tunnel excavation was simulated by employing numerical method.
在工程类比基础上, 运用数值计算方法,模拟隧道开挖过程,分析围岩稳定性.
Theyas reference for design and construction of similar tunnels.
严格控制围岩变形防止结构沉降等,可供类似隧道设计与施工参考.
Give collectivity distortion trend in zone of swelling wall rock tunnel.
给出膨胀土围岩地区隧道变形的总体趋势.
So, stability of rock mass around underground cavern grows more remarkable.
因此, 地下洞室的围岩稳定性问题就变得尤为突出.
The test results also indicate that the restraint of the surrounding rock has scale effect.
测试成果还表明,围岩约束具有尺度效应.
So, the steel fiber reinforced concrete shotcrete is more suitable in large displacement conditions.
因此, 钢纤维喷射混凝土作为初期支护更适合用在围岩大变形的场合.
Rockbursts in coal mines are dynamic failure rockopening or excavation . Its mechanism is very complex.
冲击地压是矿山工程中一种特殊的围岩破坏现象, 发生机理十分复杂.
Direct to the shortage existing in the classification of surrounding rock stability, provide a new method.
针对目前围岩稳定性分类方法存在的不足, 给出一新的分类法.