裂缝(岩石),fracture (rock)
1)fracture (rock)裂缝(岩石)
2)fracture(rock)裂缝(岩石)
3)fractured rock裂缝岩石
1.The properties of elastic waves excited from a two-dimensional (2D) point source propagation in 2Dfractured rocks were in.应用边界元法模拟了两种点源产生的弹性波在二维裂缝(岩石)中的传播特性。
2.In this paper, a new heterogeneous anisotropic constitutive model of fractured media was presented, and the properties of elastic waves excited from a two-dimensional (2D) point source propagation in 2Dfractured rocks were investigated by the pseudo-spectral method (PSM).全文主要工作包括以下几个方面： 介绍了Hudson的几种裂纹模型以及刘恩儒等提出的裂缝模型，用弹性常数随角度的变化关系图讨论了含排列干/充水裂缝(岩石)的各向异性。
英文短句/例句
1.The Study of Elastic Wave Propagation Properties of Rocks with Distributed Fractures;含分布裂缝岩石中弹性波传播特性研究
2.Research on the Elastic Constitutive Model and Wave Propagation Properties of Rocks with Distributed Fractures;含分布裂缝岩石的弹性本构及波传播特性研究
3.Frost caused the split in the rock.霜冻使岩石裂了一条缝。
4.A cranny, hollow, or crevice, as in rock.裂缝裂痕、中空或裂隙，如在岩石上
5.She thumped on the rocky ground with both fists. It seemed to shake a little more and a crack appeared.她紧握双拳，猛击岩石；岩石松动了，出现一条裂缝。
6.The root of the tree loosen their holds in the fissure of the rock.树根在岩石的裂缝处松开了。
7.Evaluation of fracture development in volcanic rocks based on rock mechanical parameters基于岩石力学参数评价火山岩裂缝发育程度
8.shatter cone(岩石上因强大冲击波而形成的)碎裂屑锥, (有裂缝的)锥状岩屑
9.having small chinks or crannies (especially in or between rocks or stones).有细微的裂缝或者缝隙（特别是在岩石、石头之上或者之间）。
10.Relationship between the Characteristic of Lithology-lithofacies and Distribution of Fractures in Carboniferous Reservoirs,Northwest Margin of Junggar Basin准噶尔盆地西北缘石炭系火山岩岩性岩相特征与裂缝分布关系
11.On the lava platform are also seen now and then considerable fissures which were caused by the abrupt cooling of the lava.石龙上常常有宽大的裂缝，那是岩浆冷却后所致。
12.Study on Fracture of Carboniferous Volcanic Reservoir in 9～(th) Area, Kramay Oil-field;克拉玛依油田九区石炭系火山岩储层裂缝研究
13.Experimental Study on Rock Mechanics Based on Deep Fracture in Typical Banks基于典型岸坡深部裂缝的岩石力学试验研究
14.FRACTAL DIMENSION ACHIEVES FRACTURED ROCK POROSITY INDEX M AND ITS APPLICATION分形分维求取裂缝性岩石孔隙度指数m及应用
15.(geology) of rock material; forced while molten into cracks between layers of other rock.（地质学）用于岩石材料的；融入岩石裂缝或岩层之间时直接生成岩石的。
16.Induced porosity is typified by fracture development as found in some shales and limestones and by the vugs or solution cavities commonly found in limestones.次生孔隙度是以某页岩和石灰岩的裂缝和石灰岩中的岩穴和溶洞为代表。
17.Molten rock that reaches the earth"s surface through a volcano or fissure.火山岩通过火山口或裂缝溢出地表的岩石融化物
18.RESEARCH ON INFLUENCE OF CRACK LENGTH ON TEST VALUES OF ROCK DYNAMIC FRACTURE TOUGHNESS裂缝长度对岩石动态断裂韧度测试值影响的研究
相关短句/例句
fracture(rock)裂缝(岩石)
3)fractured rock裂缝岩石
1.The properties of elastic waves excited from a two-dimensional (2D) point source propagation in 2Dfractured rocks were in.应用边界元法模拟了两种点源产生的弹性波在二维裂缝(岩石)中的传播特性。
2.In this paper, a new heterogeneous anisotropic constitutive model of fractured media was presented, and the properties of elastic waves excited from a two-dimensional (2D) point source propagation in 2Dfractured rocks were investigated by the pseudo-spectral method (PSM).全文主要工作包括以下几个方面： 介绍了Hudson的几种裂纹模型以及刘恩儒等提出的裂缝模型，用弹性常数随角度的变化关系图讨论了含排列干/充水裂缝(岩石)的各向异性。
4)fissured rock裂缝性岩石
5)chockstone裂缝中岩石
6)crevices in a rock岩石的裂缝
延伸阅读
大型设备基础混凝土裂缝防治大型设备基础混凝土裂缝防治protection and treatment for crack during construction of large volume foundationdaxlng shebe一Jiehu hunningtu}iefeng fangZhl大型设备蓦础混凝土裂缝防治(proteetion。ndtreatment for eraek during eonstruetion of large vol-ume foundation)在冶金工厂建设中，设备基础的混凝土约占混凝土工程总量的60%以上。随着冶金设备向大型化发展，设备基础的体积愈趋庞大。以中国上海宝钢工程为例，容积为4063m“的1号高炉，其基础混凝土工程量约为600om3;3座3oot转炉的基础底板的混凝土工程量将近700om“。施工时每次混凝土的浇筑量多在looom3以上。施工中，水泥水化热引起混凝土浇筑块体内部温度和温度应力剧烈变化，以及混凝土的凝结收缩，都会引起对结构整体性、耐久性和强度有影响的混凝土裂缝。防止这种裂缝的产生和对已出现裂缝的有效治理是保证工程质量的关键之一。裂缝原因和防止原则在大型设备基础的施工中，当混凝土内部温度变化和凝结收缩引起的变形受到约束时，浇筑块体内就要产生应力。当其中的拉应力超过混凝土材料的抗拉极限时就会出现裂缝。对变形的约束有两类情况:一是混凝土浇筑块体内部各质点间因变形量不同而产生相互牵制和影响，称为“自约束”;二是浇筑块体的变形受到外部物体(如地基、相邻结构、下部混凝土浇筑层等)的阻碍，称为“外约束”。为防止裂缝的产生，应从以下几个方面考虑对策。(1)提高混凝土自身和混凝土结构的抗裂能力。施工中要严格控制材料和施工工艺，使结构质量完全符合设计和规范要求。(2)减少混凝土中的总发热量，降低水泥水化发热速率，合理调剂混凝土在凝结过程中的温度与湿度，以减小温度应力和收缩产生的应力。(3)减弱内、外约束的影响。(4)重视控制温度对防止裂缝产生的决定性作用，在基础施工的全过程中，按阶段进行温度应力分析，确定温度控制指标和技术措施。沮控防裂措施包括基础设计、混凝土配制、混凝土浇筑与养护、施工中混凝土温度监测四个方面。基础设计主要措施有:(1)基础混凝土的强度等级应为C巧一C25。(2)对独立的大型钢筋混凝土设备基础不设沉降缝、温度缝等永久变形缝。(3)当基础设置于岩石地基上时，在混凝土垫层上表面应设滑动层(可采用一毡二油构造)，以减少地基对混凝土变形的约束。(4)基础配筋除应满足基础承载力及构造要求外，还要增配承受因水泥水化热引起的温度应力及控制裂缝开展的构造钢筋。混凝土配制主要措施有:(1)选定混凝土配合比时，应在保证基础强度、耐久性和施工工艺要求的前提下尽量减少水泥用量，以降低混凝土的绝对温升值。
