density of rock

For the soft rock , the shrink of material and reconstruction of particle is dominant , and density of rock is large .

至于孔隙率较高且连通性较高的软砂岩则以颗粒重组和收缩占主导地位，岩石密度增大。研究表明冻结速度对岩石损伤扩展也有一定影响。

Estimation of mean trace length and trace midpoint density of Rock Mass Joints

岩体节理平均迹长和迹线中点面密度估计

The peak value of energy density of rock attenuates exponentially with distance .

岩杆中能量密度峰值随距离以指数形式衰减。

Poisson ratio and density of rock has little influence , so they are not the sensitive factor .

岩体的密度、泊松比对孔壁处应力变化影响很小，不是影响地应力测量精度的敏感因素。

Estimate the Mean Trace Length and the Midpoint Density of Rock Joint Based on the Circular Window Method

圆形窗口法估算岩体节理迹长及迹线密度

The applicability of a failure criterion for the strain energy density of rock under static-dynamic loading is proposed .

阐述了岩石在动静组合载荷作用下使用应变能密度定义破坏准则的适用性。

It is difficult to detect the absolute density of rock by CT image in quantitative analysis of rock damage process in compression .

用CT图像定量分析岩石受力损伤破坏过程的难点，是难以知道岩石内部的绝对密度变化量。

A method to measure the density of rock fill by use of the rigidity correlation method is put forward with regard to the characteristics of the rockfill of Yanshan Reservoir .

针对燕山水库大坝堆石体的特点，提出了刚度相关法测试堆石体密度的思路。

Under the same heat transfer intensity , the larger the specific heat and density of rock is , the higher the degree of heat accumulation of the soil around the pipe . The smaller the rock thermal conductivity is , the greater the soil temperature gradient .

相同换热强度下，岩土的比热和密度越小，埋管周围土壤的热堆积程度越高；岩土导热系数越小，土壤温度梯度越大。

The product of the velocity and density of a rock is termed in the acoustic impedance .

岩石的波速和密度之乘积称为声波阴抗。

The relation between stress-strain and density variation of rock crack has been obtained through the meso-damage theory and damage statistics model .

把细观损伤理论和宏观统计损伤模型结合，建立应力–应变与微裂纹密度变化的关系；

The density of sedimentary rock varies with depth . Density variation must be considered in researching sedimentary basin and its internal geologic structure with the use of gravimetric data .

沉积岩的密度是随深度而变化的，用重力资料研究盆地及其内部构造时必须考虑变密度的情况。

There is linear relationship between the density of carbonate rock and the longitudinal or rotational wave . Lithologic difference of carbonate rock can be judged with density , wave speed , longitudinal and rotational wave speed ratio or Poisson 's ratio .

纵、横波速与岩石的密度具有线性关系，利用密度、波速、纵横波速比或泊松比可初步判断碳酸盐岩在岩性上的差别。

The relationships between density of the rock , uniaxial compressive strength , tensile strength and the longitudinal or transverse wave velocity are also the positive correlativity , which are best fitted by quadratic function , exponential function and linear function , respectively .

煤系岩石密度、单轴抗压和抗拉强度与其纵波或横波速度之间也呈正相关关系，它们分别服从二次函数、指数函数和线性函数分布。

Reckoning the density of the basement rock of sedimentary basin by gravity data

利用重力资料推算沉积盆地的基底密度

The technique and application of assessing the distrbuting density of structures in rock mass

节理化岩体结构面分布密度的确定方法及其应用

Model of porosity can be established according to density of framework of rock , density of rock and density of fluid in rock .

由骨架密度、体积密度、流体密度联合建立孔隙度解释模型。

Published tomorrow in Science , an international team reports finding what could be the critical difference between these disasters : the density of the sedimentary rock overlying the quake zone .

在提前出版的自然科学杂志上，一个国际科研小组报告称，发现了这两场地震的关键区别：地震带沉积岩层叠的密度。

Because both density of framework of rock and density of rock are dynamic performance , and included same components of detritus , matrix , cement , and their connotation and applicable conditions are consistent , porosity calculated according to the model is more accurate .

由于骨架密度和体积密度均是动态变量，且都包含有碎屑、杂基、胶结物组分，模型中参数的地质含义和应用条件相互统一，从而使得计算的孔隙度值更加准确。

Percentages of more than 20 elements in rock can be given by geochemical well-log , and percentages of minerals in rock can be calculated based on established model of rock constitution and conversion ratio between elements and minerals , then density of framework of rock can be calculated .

地球化学测井能给出二十余种元素的含量，根据矿物组合模型、元素含量与矿物的转换关系可以得到岩石的矿物种类及其百分含量，然后得出比较准确的岩石骨架密度。

The distribution of electric current density of the ground around rock bolt and the magnetic field on the ground

锚杆周围的地下电流密度分布及其在地面上产生的磁场

During the statistical process of density , the probability density distribution of the rock mass structural plane in sample space is assumed as normal distribution .

在密度统计过程中，把岩体结构面样本在空间上的概率密度分布假设成正态分布。