您要查找的是不是：
- soft surrounding rock mass 软弱围岩
- soft surrounding rock masses 软弱围岩
- As the shallow depth and poor geological conditions, the surrounding rocks are always soft, fragmentized or intensively disintegrated rock mass with partial pressure. 在浅埋条件下，地层的条件也相对较差，一般为软岩、破碎岩体或高风化岩体且带有一定的偏压。
- The four common surrounding rock mass classification methods,Q-system,RMR method,HC method,and BQ m. 采用Q系统、RMR分类、水电规范HC分类、国标BQ分类等4种常用围岩分类方法对该隧洞进行了围岩分类。
- SUN Xue-yi.Grouted rock bolt used in underground engineering in soft surrounding rock or high stress region[J].Journal of China Coal Society,1984,9(2):61-69. [4]孙学毅.;高应力地区和软弱围岩地下工程砂浆锚杆[J]
- Abstract The design, blasting techniques and outcomes of maintaining a roadway with soft surrounding rock under overhead mining using destressing are introduced in this paper. 本文介绍了利用卸压法维护跨采软岩巷道的施工设计、爆破工艺技术及取得的成果。
- The results show that the differences of stability of surrounding rock mass are markable for dlfferent excavating sequences. 结果表明，不同的开挖顺序，对围岩的稳定性具有显著的影响。
- ZHOU Xiao-pin,SUN Yun-lun,ZHANG Yong-xing,et al.Numerical analysis of the surrounding rock mass stability in dachnag tongking tin mine[J].Underground Space,2000,20(4):290-293. [7]周小平;孙运轮;张永兴;等.;大厂铜坑矿细脉带采场围岩稳定性数值分析[J]
- The construction of Tianchi Railway Tunnel features the rapid construction with self -developed complete sets of equipment for single -track tunnel and the excavation of soft surrounding rock section by adding an access tunnel. 天池隧道施工有两个特点,一是施工中运用了自行开发的铁路单线隧道配套设备进行施工;
- According to the field investigation at Dayang coal mine, the paper describes behavior of ground pressure of longwall top coal caving face with soft surrounding rock and movement of overlying strata. 本文通过大雁二矿28%23层采面矿山压力的实测分析,论述了软岩矿井大采放比综放开采矿压显现特征和围岩活动规律。
- Analysis of relationship between joint condition and stability of surrounding rock of openings and mining areas is completed. Using CSIR geomechanical classification method,assessment on rock mass quality in the mine is provided. 根据矿区工程地质、水文地质和节理裂隙发育调查统计资料 ,矿区地应力测量和矿岩岩石力学性质试验结果等 ,采用CSIR地质力学分类方法 ,对矿区分布的主要岩组进行的岩体质量分级评价。
- The influence of blasting vibration on existed adjacent underground chambers or surrounding rock mass of the tunnel under excavating is inevitable if the method of blasting is employed for excavation. 由于地下洞室主要采用钻爆法施工,不可避免地存在爆破开挖对邻近已开挖洞室和开挖洞室本身的影响问题。
- Based on Block Theory, this paper ,though geological prospecting and tests, predicts 4 huge key blocks in the surrounding rock mass of underground powerhouse, the Three Gorges Project. 本文以块体理论为基础,预测三峡工程地下厂房围岩存在4个特大型关键块体。
- loess and soft surrounding rock road tunnel 黄土软岩公路隧道
- characteristics of surrounding rock mass 围岩特性
- pressure of surrounding rock mass 围岩压力
- classification of surrounding rock mass 围岩分类
- The influences of blasting vibration on the stability of surrounding rocks mass and concrete lining of existed adjacent chambers, or excavating tunnel and the grouted rockbolts are studied and analyzed in the thesis. 本文主要研究爆破振动对邻近地下洞室和本洞围岩稳定性、混凝土衬砌及砂浆锚杆的影响。
- water infiltration of surrounding rock mass 围岩渗水
- stability of surrounding rock mass 围岩稳定
