1) layered and jointed rock masses
层状节理岩体
1.
Using physical simulation method,the variety laws of elastic modulus E with the rock-layer thickness h and the fragmentation degree a,the cube root of rock block volume,of the layered and jointed rock masses under cyclic load with and without bolt support are studied in detail.
运用物理模拟方法,研究了在循环荷载作用下层状节理岩体非锚固与锚固模型的弹性模量E随岩体分层厚度h和块度a(岩块体积的立方根)的变化规律。
2) columnar jointed rock mass
柱状节理岩体
1.
The mechanical properties of columnar jointed rock mass,which is the main composition of dam foundation and surrounding rock of deep cavern at Baihetan hydropower station,are very complex.
白鹤滩水电站坝基基岩及深部洞室围岩以柱状节理岩体为主,其力学特性极其复杂。
2.
The columnar jointed rock mass is considered as a macroscopic composite material in a broader sense.
将柱状节理岩体整体考虑为一种广义宏观复合材料是一种行之有效的研究方法,为此建立复合型多弱面软化模型,采用VC++语言成功开发并嵌入FLAC3D程序。
3) layered rock mass
层状岩体
1.
Numerical modeling of flexural deformation of laneway in layered rock mass;
层状岩体巷道弯曲变形的有限元模拟
2.
Deformation of huge underground opening excavated in layered rock mass with steep dip angle;
陡倾角层状岩体中地下洞室围岩的变形
3.
Stability analysis and anchor methods for blocks of underground layered rock mass in cavern excavation;
层状岩体开挖洞室围岩块体稳定分析及锚固方法
4) stratified rock mass
层状岩体
1.
Study on integration of three-dimensional modeling and numerical simulation for stratified rock mass;
层状岩体三维可视化构模与数值模拟的集成研究
2.
Excavation response of tunnel in stratified rock mass based on Hoek-Brown criterion
基于Hoek-Brown准则的层状岩体隧道开挖响应分析
3.
A definition of water-inrush-factor was presented,and the criterion about the instability of seepage flow of water in stratified rock mass was described by water-inrush-factor.
利用煤矿底板突水因数表述了层状岩体渗流失稳条件。
5) Bedded rock
层状岩体
1.
The mechanism analyses of bedded rock blasting damage and fracture;
层状岩体爆破损伤断裂机理分析
2.
Model study of seepage in single fissure bedded rock;
单裂隙层状岩体渗流模型研究
3.
Study on the shearing strength mechanical characteristics of bedded rock
层状岩体的抗剪强度力学特性研究
6) layered rock
层状岩体
1.
Numerical simulation of excavating openings in layered rockmass considering the couple stress;
考虑偶应力的层状岩体地下洞室开挖模拟
2.
The physico-mechanical characteristics of layered rock are different between its tangential and normal orientations.
层状岩体沿层面方向和垂直于层面方向的物理力学特性各异,表现出明显的各向异性,其破坏形式也与一般各向同性岩体不同。
补充资料：含铋层状氧化物铁电体
分子式：
CAS号：
性质：化学通式为：(Bi2O2)2+(Ax-1BxO3x-1)2-，式中，x为钙钛矿层厚度方向的元胞数，其值为1～5；A为较大阳离子，配位数为12；B为较小阳离子，配位数为6。A、B离子组合应满足∑XAVA+∑XBVB=6x，式中，x为相应于A、B位离子浓度，V为相应于A、B位离子的离子价态。这类层状氧化物中凡具有铁电行为的化合物就称为含铋层状结构氧化物。其结构是由二维钙钛矿层和层有规则地相互交替排列而成，沿层面具有较好的解理性。自发极化强度较高。压电性能和介电性能的各向异性大。居里温度高。自发极化强度、机械品质因素、频率的时间稳定性和温度稳定性都较高。常规陶瓷工艺很难获得致密烧结体，需用热压烧成新工艺。：PbBi2Nb2O9，BaBi2Nb2O9，SrBi2TaO9，Bi4Ti3O12，PbBi4Ti4O15，PbBi4Ti5O18等属这类铁电体。用于制作滤波器，换能器等。
CAS号：
性质：化学通式为：(Bi2O2)2+(Ax-1BxO3x-1)2-，式中，x为钙钛矿层厚度方向的元胞数，其值为1～5；A为较大阳离子，配位数为12；B为较小阳离子，配位数为6。A、B离子组合应满足∑XAVA+∑XBVB=6x，式中，x为相应于A、B位离子浓度，V为相应于A、B位离子的离子价态。这类层状氧化物中凡具有铁电行为的化合物就称为含铋层状结构氧化物。其结构是由二维钙钛矿层和层有规则地相互交替排列而成，沿层面具有较好的解理性。自发极化强度较高。压电性能和介电性能的各向异性大。居里温度高。自发极化强度、机械品质因素、频率的时间稳定性和温度稳定性都较高。常规陶瓷工艺很难获得致密烧结体，需用热压烧成新工艺。：PbBi2Nb2O9，BaBi2Nb2O9，SrBi2TaO9，Bi4Ti3O12，PbBi4Ti4O15，PbBi4Ti5O18等属这类铁电体。用于制作滤波器，换能器等。
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参考词条