您要查找的是不是:
- rock mass thickness 岩体厚度
- Unloading rock mass mechanics II. 卸荷岩体力学2。
- The rock mass produced by an intrusive process. 侵入岩浆岩浆侵入过程中生成的岩块
- The numerical simulation show that the PFRC structure could work well utilizing the utmost self-bearing capacity of the rock mass and effectively reduce thickness of the 2(superscript nd) support. 计算结果表明,聚丙烯纤维混凝土锚喷支护结构能充分发挥围岩自承载能力,提高隧道的稳定性,能有效减少二次衬砌混凝土的厚度。
- Simultaneously, the displacements of the rock mass were monitored. 与此同时,还对矿房围岩的变形进行了监测;
- The rhodium target, mass thickness is more than 150 mg/cm 2 , adapts to producing 103 Pd on Cyclone 30 accelerator. 确定了脉冲电镀工艺参数 ,成功地制备适用于生产10 3 Pd的Cyclone 3 0加速器照射用铑靶 ,镀层厚度大于 15 0mg/cm2 。
- A fracture or crack in a rock mass along which no appreciable movement has occurred. 裂缝,裂口岩石块中的碎片或缝隙,在其周围未发生过可被觉察到的运动
- The rock mass structure can be expressed by rock stratum effect thickness influence coefficient. It is more scientific then using roof rock and sand content in the study of coal seam gas preservation. 研究表明,煤层围岩岩体结构控制了煤层瓦斯的赋存,岩体结构可用岩层效应厚度影响系数来表示,应用这一参数研究煤层瓦斯赋存比用煤层顶板岩性及含砂率更科学。
- Abstract: Through measuring the characteristic X-ray for copper target of mass thickness 23m g/cm2, its K-shell ionization cross section was calculated. 摘要:在电子碰撞的情形下,通过对铜靶的特征X射线测量,从而推算出它的K壳层电离截面。
- Theory and practice of grouting drainage and anchorage of rock mass II. 岩体灌浆排水锚固理论与实践2。
- There is a large scale of dynam-relaxed rock mass lies in Daliushu dam site. 大柳树坝址区存在大面积、大范围的岩体松动破坏现象。
- Cleavage and fracture have a strong impact on blasted result for rock mass. 摘要节理裂隙对岩体爆破效果有很大的影响。
- The formulas of rock mass displacements and deformations are devel... 通过工程实例分析表明,理论预计结果与现场实测结果吻合。
- Accumulating sand can lead to great pressure on top of the grottoes and ponding in the rock mass. 积沙还能造成窟顶巨大压力和岩体积水。
- Geologically, the rock mass of the Mogao Grottoes is semi-binder calcirudite of the quaternary sediment of very loose structure. 莫高窟岩体在地质学上属第四纪沙泥质、钙质半胶结砾岩,结构十分松散。
- Discontinuities or weakness planes are those structural features which separate intact rock blocks within a rock mass. 不连续面或弱面指在岩体内分割完整岩石的那些构造形迹。
- A rock mass of large horizontal extent bounded,especially above,by physically different material. 地层一个水平的大岩石区域,特别是在它的上面邻接的是不同物质的材料。
- The process of alternating solid rock masses is called metamorphism. 固体岩体变换的过程即所谓变质作用。
- These screes are generally small pieces of rock which have become detached from the rock mass. 这些碎石通常都是些小石块,它们从岩体上分离下来。
- This article emphasizes a prediction of overbreak,the unstable wedge, for openings in jointed rock mass. 本文着重于岩体中洞室超挖-不稳定楔形体的预测。