Shotcrete and bolting is a common support system used in highway tunnel,and this support system will produce a derived reinforced rock arch under the natural rock arch,how about the mechanical conditions in the derived reinforced rock arch and how to design the derived reinforced rock arch also how to design the shotcrete and bolting support system are deserved to be studied.
目前公路隧道普遍采用喷锚支护体系,将在岩石承载拱以下形成次生的岩石加固承载结构,该次生承载结构的受力如何以及如何设计该次生结构即锚喷支护设计问题,是一个值得探讨的问题。
Critical pressure differential determinative rule is established for sanding with bare gas well completion in consolidated sandstone gas pool.
结合试验结果将固结砂岩储层简化为具有残余强度的弹脆塑性体,计算了强度参数。
Bio-enzyme can remove the oil from the solid particle's surface of the rocks in short time.
生物酶能迅速剥离岩石固体颗粒表面的原油。
Main influ-encing factors on rock abrasiveness are the sturdiness of rock mass and contentof hard minerals,and the coefficient of rock abrasiveness is a function of thespecific energy consumption in drilling and the content of hard minerals.
影响岩石磨蚀性的主要因素是岩石的整体坚固程度和硬矿物含量。
<Tittle>Fluid ascent through the solid lithosphere and its relation
流体穿过固体岩石圈上升及其与地震的关系
Study on the Reinforcement Mechanism of Fully Grouted Rock Bolt Considering the Interaction between Bolt and Wallrock Mass
全长注浆岩石锚杆与围岩体相互作用下的锚固机理研究
The rock formed by the cooling and solidifying of molten rock.
熔岩融化的岩石冷却凝固后形成的岩石
A solid, liquid, or gaseous foreign body enclosed in a mineral or rock.
内含物包含在矿砂或岩石中的固体、液体或气体等外物
The main rocks in the complex are gabbro, gabbro-diabase, pyroxenite and olivine-pyroxenite etc.
杂岩体主要岩石类型为:辉长岩、长辉绿岩、辉石岩、榄辉石岩等。
DIRECT DETERMINATION OF TRACE SILVER IN SOLID ROCK OR MINERAL SAMPLES BY GRAPHITE FURNACE AAS
固体进样石墨炉原子吸收法测定岩矿样品中微量银
Formed by solidification from a molten state.Used of rocks.
火成的由熔化的岩石凝固形成的。用于修饰岩石
The strength of rock may be generally regarded as a measure of resistance of rock in breaking-up.
岩石坚固性可视为岩石抵抗破坏的一种度量。
A rock consisting of pebbles and gravel embedded in cement.
砾岩由水泥固结的卵石和砾石形成的砾岩
A body of igneous rock formed beneath the surface of the earth by consolidation of magma.
火成岩岩浆凝固后在地表下形成的火成岩岩体
A process of rock alteration or mineral formation brought about by the action of gases emitted from solidifying magma.
气成作用；气成通过从岩浆凝固中释放气体的作用下引起的岩石改变或矿物形成的过程
Petrochemical characteristics and rock types of Dawanghaizai rock body
大望海寨岩体岩石化学特征及岩石类型划分
A light, porous, glassy lava, used in solid form as an abrasive and in powdered form as a polish and an abrasive.
轻石，浮石一种在固体状时用作研磨物且粉状时用作磨光物和研磨物的轻多孔火山岩
Sandstone and conglomerate are the consolidated equivalent of sand and gravel.
砂岩和砾岩分别是砂和砾石固结的产物。
Any of the surfaces of a rock or crystal.
表面岩石或晶体的表面
New Inert Gas from Rocks
地球岩石中的惰性气体