查询词典 rock boring machine

Next, take the rock mechanics as a foundation, has analyzed the gas drilling broken rock mechanism; Thought that the gas drilling broken rock mechanism is different with the conventional drilling fluid well drilling, the bottom of the well rock destruction way destroys for the volume, the bottom of the well rock and the drill bit contact plane disproportionality causes the gas well drilling well diviation another reason.

其次，以岩石力学为基础，分析了气体钻井破岩机理；认为气体钻井破岩机理不同于常规钻井液钻井，井底岩石破坏方式为体积破坏，井底岩石与钻头接触平面不均衡性是导致气体钻井井斜的又一原因。

Based on isotopic ages and the cycle of magamtism, the ages of Yanbian granites can be subdivided into five periods:①late Permian granites (260-245Ma), the typical plutons are Liukesong and Liangbing plutons, and the main rock type include diorite-monzonitic-K syenogranites;②Triassic granites (225-200Ma), the typical plutons are Sandaogou, Chunyang, Qishiergedingzi, Dahuanggou, Naozhi, and Qinglinzi plutons, the main rock type include quartz dioritesgranodiorites-monzonitic-alkali granites;③early Jurassic granites (190-180Ma), which composed of quartz diorites-granodiorites - monzonitic ,and the typical plutons are Shimen, Miantian, Daxinggou and Yushuchuan rock;④Middle-Late Jurassic (170-150Ma), which composed of granodiorites- monzonitic- garnet-bearing muscovite granites, the typical plutons are Huangniling, Weizigou, Loutuoshan and Dongqing rock;⑤early Cretaceous (about 130Ma), the typical pluton is Zhongping pluton, and its rock type is paulite diorite.

另外，根据同位素年龄和岩石组合并考虑到岩浆的旋回性，将延边显生宙花岗岩进一步划分为五个期次：1。晚二叠世(260-245Ma)，代表性岩体为六棵松和亮兵，主体岩性为辉石闪长岩、二长花岗岩和钾长花岗岩；2。三叠世(225-200Ma)，代表性岩体为三道沟、春阳、七十二个顶子、大荒沟、闹枝、青林子，岩石组合为石英闪长岩—花岗闪长岩—二长花岗岩—碱长花岗岩，以花岗闪长岩和二长花岗岩为主；3。早侏罗世(190-180Ma)，石英闪长岩—花岗闪长岩—二长花岗岩组合，主体岩性为花岗闪长岩，代表性岩体有石门、棉田、大兴沟、榆树川等；4。中侏罗世(170-150Ma)，主体岩性为花岗闪长岩和含石榴石花岗岩，代表性岩体有黄泥岭、苇子沟、骆驼山、东清5。

The method of prediction on stochastical simulating 3D parameter field of rock mechanics is brought forward in this paper. Namely, rock mechanics parameters- curve obtained by known and limited conventional log materials is took as inputs of hard data;and seismic attribute data body, hydrating of mud shale and rock environmental parameters data is took as constraint of soft data. By simulating stochastically through optimizing algorithm of Sequential Gauss Simulation,dynamical data field of rock mechanics parameter of three-dimensional space are gotten, then log response of rock mechanics parameters in position of any point in space is predicted.

提出三维岩石力学参数场随机模拟预测的方法，即以已知有限的常规测井资料计算出来的岩石力学参数曲线作为硬数据输入，以已知地震属性数据体及泥页岩水化和岩石环境参数数据作为软数据约束，选择序贯高斯模拟方法，随机模拟得到动态规律变化的岩石力学参数的三维空间数据场，然后由岩石力学参数的三维空间数据场预测空间任一位置的岩石力学参数在井上的测井响应，并把该反映动态规律变化的测井响应按照油田勘探开发的要求输出成特定格式，供生产和工程上使用。

Proceeding from the thought of blasted fragments having the fractal characteristics, the calculation of blasted fragment sizes was related to the mechanism of blasting in jointed rock masses by the new concept of "rock mass fracture ratio" presented and , thus, the model of damage mechanics for blasting in rock masses was established, which reflects the blasting essence of both rock masses breaking along joint planes and rock breaking.

从爆破岩块具有分形特征的思想出发，通过提出&岩体破裂比率&概念，将爆破块度计算同节理岩体爆破机制相联系，建立起岩体爆破块度的损伤力学模型，该模型反映了岩体沿节理面破裂和岩石本身破裂的岩体爆破本质。

With the geometry model of the roller cone rock bit and kinematics model, by setting up rock failure model of bottom rock and interaction model between teeth and rock, the interaction dynamic modeling of Bits and rock is established in the process of petroleum drilling.

本文对在钻井过程中由于牙轮钻头与岩石互作用及钻柱的弹性变形导致牙轮钻头和钻柱在钻井过程的振动问题进行了深入地分析研究。

With the geometry model and kinematics model of roller cone rock bit, the interaction model of rock bit and rock is established which was based on the experiment of interaction between single tooth and rock. It is a good fundament for the computer simulation on working action of rock bit drilling.

在牙轮钻头几何学、运动学基础上，利用单齿压入与刮切岩石实验建立了钻头与岩石互作用力学模型，实现了对钻头在钻井过程中工作行为的仿真计算； 2。

In the process of impact of abrasive jet on rock, resulting dynamic stress plays an important role in rock destruction. The stress wave resulted makes local rock tensile and shearing, then makes rock destructed. In the conditions of some hypotheses, the mechanical model that rock is applied by stress wave, i.e. jet wave basic equations, are set up by wave theory, and the formula of the maximum normal stress resulted by stress wave is deduced according to known boundary conditions.

描述了岩石材料在磨料射流的冲击下破坏的主要原因，分析了应力波就是岩石局部受到拉伸和剪切并最终使岩石发生破坏的根本因素，在这一假设的前提下采用波动理论建立了岩石受应力波作用的力学模型即射流波动的基本方程，在已知的边界条件下推导出了由波动引起的最大正应力的计算公式。

In-situ monitoring gave the following results: 1 a tension stress zone occurred at the bottom of reinforced rock mass which indicated that the role of rock bolting was remarkable; 2 stress concentration at surrounding rock of main shaft was gradually transferred from shaft wall to complete rock mass far from shaft center; 3 vertical displacement was gradually smaller from up to bottom and from center to outside of the reinforced loose rock mass.

首先，建立了主溜井三维有限元计算模型，模拟了主溜井围岩的塌落破坏过程和加固后的加固体的稳定性及变形特性；同时，还采用多点位移计等对加固体的稳定性进行了实地监测。计算结果表明：网棚锚注加固体的纵剖面上的压力和位移规律是①加固体下部局部出现拉应力区，表明锚杆的使用是合理的；②加固体内的应力由塌落中心向周围围岩过渡，应力越来越大，最终将荷载传至围岩中；③从下到上下沉逐渐减小；④从加固体中心到周围下沉位移逐渐减小，且近似一条抛物线。

While the organic matters in the carbonate rock and the mud rock are all more than that in Ordovician, especially, source rock thickness of carbonate rock is a suite of very important marine facies source rock in Tarim basin.

而寒武系无论是碳酸盐岩还是泥岩，其有机质丰度均高于奥陶系，尤其是碳酸盐岩烃源岩厚度也较大，因而是塔里木盆地一套十分重要的海相烃源岩。

England is also credited with being the birthplace of many musical genres and movements such as hard rock, British invasion, heavy metal, britpop, glam rock, drum and bass, progressive rock, punk rock, gothic rock, shoegazing, acid house, UK garage, trip hop and dubstep.

英格兰还记的诞生地与目前的许多音乐流派和运动，如坚硬的岩石，英国入侵，重金属，英伦摇滚，华丽摇滚，鼓声和低音，前卫摇滚，朋克摇滚，哥特摇滚， shoegazing ，酸房子，英国车库，行程hop和dubstep 。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。