Key strata is a rock seam which plays an important controlling roles in the movement of mining overlayer strata while the key strata is sometimes made up of two or more compound rock strata.
在采场覆岩运动中起主要控制作用的岩层为关键层,而有时关键层是由2层或2层以上岩层形成的复合岩层所组成,我们称其为复合关键层。
It is mainly to research the compound karst developmental mechanism between the two soluble rocks,which are involved in the chemical karstification and the biological karst processes.
文章主要从自然条件上研究两者复合岩溶发育的机理,探讨了化学岩溶作用过程和生物岩溶作用的机理。
Similar Simulation Verification of Shearing Slip Model of Overlying Composite Stratum in Stope
采场上覆复合岩层剪切滑移模型的相似模拟验证
The complex of sand bodies developed in a cyclical sequence of off-lapping sedimentary beds.
砂岩复合体发育于退覆沉积层的旋回层内。
Study on Fracture Process Driven by Detonation Gas during the Complex Perforation in Oil well;
油井岩层复合射孔爆燃气体压裂机理研究
Mechanical Characteristic Study of Stratified Composite Rock under Compression
压缩条件下层状复合岩石力学特性研究
Clearance-reserving suppor technique applied to tunnel having high-stress soft wallrock
高应力软岩层巷道空帮让压复合支护研究
Study on Complex Active Support System of Seam Gateway with Thick Carbonaceous Mudstone Roof
厚层炭质泥岩顶板煤巷复合主动支护系统研究
Analysis for Long-short Compound Bolt Reinforcement in Layer Rock Slope
层状岩体边坡长短复合锚杆加固的稳定性分析
complex reservoir analysis
复杂岩性储集层分析
Dynamic compressive failure strength analysis of CBF basalt fiber stiffened laminated plates
玄武岩纤维复合材料层合加筋板轴向动力压缩破坏分析
SEISMIC STRATIGRAPHY, FACIES ARCHITECTURE AND RESERVOIR CHARACTER OF A DELTA COMPLEX, EUGENE ISLAND BLOCK-300 FIELD
美国尤金岛油田三角洲复合体的地震地层学、岩相结构和油藏特征
Mechanism Research on Blasting Damage and Fracture of Bedded Composite Rock and Its Engineering Application;
层状复合岩体爆破损伤断裂机理及工程应用研究
Research on Rockmass Stability Control and Hybrid Support for High Stress and Complex Rockmass in a Deep Mine;
深部高应力复杂岩层稳定性控制及综合支护技术研究
Research on the Equivalent Elastic Properties of Rockmass Reinforced by Rockbolts Based on the Composite Theory of Layered Material;
基于层状材料复合理论的加锚岩体等效弹性性质的研究
Research and Numerical Simulation of Anchoring Composite Support System in Layered Rocks Based on Mechanics of Composite Materials;
基于复合材料力学的层状岩体锚固支护系统研究与数值模拟
Research and Application of Diamond-impregnated PDC Bit or Drilling in Medium Hard Rock Formation
中硬岩层钻进孕镶金刚石复合片钻头的研究与应用
COMPREHENSIVE MECHANICAL MODEL OF RESERVOIRS OF CARBONATE SALT ROCK AFTER ACID-FRACTURING DAMAGE AND ITS APPLICATION
碳酸盐岩储层酸压后测试伤害的复合力学模型及其应用
For instance, according to the nature of cohesion, the fault rocks can be divided into cohesive and incohesive fault rocks.
例如，断层岩可以划分成粘合断层岩和非粘合断层岩。
According to the weight stress field, the seismic stress field, the temperature stress field in the composite stratified rock mass, the initial stress field in rock mass is discussed theoretically in this paper.
本文从复合层状岩体自重应力场、造应力场、度应力场出发,在理论上探讨了岩体初始应力场。