| 1. | Sometimes magma does not melt its way to the surface, but acting under the pressure of surrounding rocks, flows underground . 有时岩浆并不一直熔化到地表,而是在围岩压力的作用下在地底下流动。 |
| 2. | Analysis of pressure and deformation of wall rock near deep tunnel 深部坑道围岩压力与变形分析 |
| 3. | Site testing of the pressure of surrounding rock mass and the mechanics property of tunnel shoring system 隧道围岩压力与衬砌体受力特性原位测试 |
| 4. | Numerical simulation analysis and study on the abutment pressure distribution laws at the fully mechanized caving face 综放采场围岩压力分布规律数值模拟研究 |
| 5. | 2 . the ground pressure and lining stress of lining of entrance increases as gradient of up - slope increases ( 2 )洞门段围岩压力及衬砌结构受力随仰坡坡度增大而增大。 |
| 6. | ( 8 ) as for the runnel which is located at a karst zone with a high water level , external water load is the main one , and rock pressure is secondary 门)在岩溶富水区隧道地下水水头较大时,外水荷载是衬砌结构的主要荷载,围岩压力相对来说是次要荷载。 |
| 7. | At the meantime , surrounding rockmass pressure of tension collapse and extrusion press slide types have been calculated , by one diversion excavation engineering is taken as an example 以研究区引水洞为例,分别计算了拱顶围岩整体滑落和侧壁围岩整体滑落型围岩压力。 |
| 8. | This paper studied on surrounding rockmass pressure calculating method and application of underground excavation in the low ground stress region , on the basis of one hydraulic engineering in northwest china 摘要以西北某市水利工程地下洞室?洪洞等为例,对低地应力区地下洞室围岩压力计算方法与应用进行了研究。 |
| 9. | The result from different contact case shows that the elastic modulus of contact layer is sensitive to pressure - bearing ratio when its elastic modulus is less than one percent of concrete ' s 不同接触情况下的受力分析结果表明,当接触层弹性模量小于混凝土弹模的1 / 100时,接触层的弹性模量变化对钢衬和围岩压力分担比的影响较大;而接触层厚度对压力分担比的影响不甚明显。 |
| 10. | The studying results show that three types of surrounding rockmass pressure were put out , they are tension collapse , extrusion press slide types and gravity fall surrounding rockmass pressure , and then calculating formula have been discussed 研究认为,低地应力区地下洞室围岩压力可分为拱顶横向拉张塌落型、侧壁切向挤压滑落型和洞周自重掉落石块型三种破坏类型产生的围岩压力,并讨论了低地应力区地下洞室围岩压力的计算公式。 |