rock pillar的例句大全

Design of Rock Pillar Left in Advance of Shaft Deepening

立井延深预留保护岩柱的设计

Relation between the depth and the length of rock pillar is discussed in detail.

另外,还详细讨论了矿柱顶点的深度与长度之间存在的关系.

compared with normal ground soil, strong weathered rock base has high bearing capacity, low compressibility and small deformation. when strong weathered rock layer is rather thick and groundwater table is very high, beam foundation under pillar is adopted.

强风化岩石地基相对一般地基土承载力高，压缩变形小，当强风化岩层较厚，地下水位很高，可采用柱下梁式基础。

roof stress-distribution and surface subsidence rock movement are studied respectively by 3d fem code ansys before and after ore pillar dilapidation and roof cutting.

应用三维ANSYS有限元程序研究了切顶与矿柱崩落前后顶板的应力分布状态和岩体移动情况。

scientific proofing of the determination of the size of sand barrier pillar for safety mining under thin basement rock layer and thick loose water-bearing bed

厚松散层薄基岩埋藏条件煤层的防砂岩柱安全尺寸论证

Roof falling, floor heave of roadway and pillar failure are important rock mechanical problems in mining.

顶板冒落 、 巷道底鼓和矿柱破坏是采矿过程中的重要岩石力学问题.

The influence of unloading confining-pressure on the failure Modes of Pillar was researched using Rock Failure Process Analysis ( RFPA2D) developed by Northeastern University.

利用东北大学岩石破裂过程分析系统（RFPA2D），研究了围压卸荷对矿柱破坏模式的影响。

Study on Instability and Time Dependence of Pillar in Hard Rock Mass

硬岩矿柱失稳及时间相依性研究

Analyses the migration mechanism of overlying formation of fore-and-aft mining, and the stability influence of roof-floor rock, gains the stress distribution of plastically deforming area form the elasto-plastic stability of coal pillar.

分析了采动影响前后巷道上覆岩层运动、掘巷前后巷道顶底板的岩层及煤柱稳定性；由煤柱的弹塑性稳定性分析中，得出煤柱塑性区应力分布；

Pillar Mining of Rock Cross-cut with Pseudo-sloping Flexible Shield

伪倾斜柔性掩护支架开采石门煤柱