1) incompetent beds of red strata
红层软弱夹层
2) soft interlayer
软弱夹层
1.
On soft interlayer affecting roadway stabilization in roof
顶板中软弱夹层对巷道稳定性影响研究
2.
The authors calculated the reaction spectra of seismic waves that came from the practical soil layer at different depths and, by modifying the practical soil layer parameters and analyzing the spectra of seismic waves in varied depths of the soil layer and the soft interlayers, drew some significant conclusions.
在给定基岩地震输入的情况下计算实际场地土层不同深处的地震动反应谱,然后修改实际土层模型参数,在考虑土层厚度和软弱夹层变化的情况下进行地震反应分析,得出一些有意义的结论。
3.
This paper introduces the stable analysis calculation for the sluice chamber motherboard slide along rock foundation and soft interlayer,under non earthquake condition for the spillway chamber of Guanhe reservoir,and resist earthquake check computation.
本文对关河水库溢洪道闸室在非地震情况下,闸室底板沿基岩的滑动和沿基岩中的软弱夹层滑动进行了稳定分析计算,并对之进行了抗震验算。
3) weak interlayer
软弱夹层
1.
A study of influence of weak interlayers distributed at different intervals on opening stability;
不同分布距离的软弱夹层对洞室稳定性的影响研究
2.
FEM Analysis and Study on the Masonry Gravity Dam with Weak Interlayers Embeded in the Foundation;
软弱夹层地基上浆砌石重力坝有限元分析研究
3.
Change of strength of surrounding rock system induced by weak interlayer
软弱夹层引起围岩系统强度变化的试验研究
4) weak intercalated layer
软弱夹层
1.
Numerical simulation and analysis of failure process of soil with weak intercalated layer;
含软弱夹层土样变形破坏过程细观数值模拟及分析
2.
Stability study of deep soft rock roadways with weak intercalated layers;
含软弱夹层深部软岩巷道稳定性研究
3.
Analysis of failure process of similar soil slope with weak intercalated layer based on particle flow simulation;
基于颗粒元模拟的含软弱夹层类土质边坡变形破坏过程分析
5) weak intercalation
软弱夹层
1.
Study on laboratory simulation of the engineering geological properties of weak intercalation;
软弱夹层工程地质性质的室内仿真研究
2.
Research on deformation mechanism about stratified tunnel surrounding rock mass containing weak intercalation;
含软弱夹层层状隧道围岩变形机理研究
3.
Weak intercalation usually has a bad impact on the stability of rock slope, furthermore, some changes will happen to the granule composing and water ratio along with time passing and the climate changing, for special weak intercalation.
软弱夹层影响边坡稳定和爆破效果。
6) weak seam
软弱夹层
1.
Engineering characteristic of weak seam and affection of it to slope stability of left dam abutment of a hydroelectric station;
某水电站左岸坝肩边坡软弱夹层的工程特性及其对边坡稳定性的影响
补充资料：软弱夹层
岩体内存在的层状或带状的软弱薄层。一般，软弱夹层的厚度比相邻岩层的小，力学强度和变形模量也较低，饱和抗压强度仅为干抗压强度的二分之一或更低。有些遇水崩解。按成因，软弱夹层可分为原生型和次生型两类。前者如以石英砂岩为主的岩层夹有粘土质岩层或泥岩薄层；后者为风化、溶滤作用或层间剪切及断层错动而形成的软弱夹层。在软硬相间的岩体内，往往由于岩层褶曲发生顺层错动，使软弱岩层的不同部位受破坏的程度不同而显示构造分带现象。一般可分为节理带和泥化层。泥化层又可进一步划分为劈理揉褶带、泥化带和错动泥化面。软弱夹层每一部分的结构、致密程度、天然含水量、孔隙度、塑性指数及力学强度等均有所不同。多年来，通过对长江葛洲坝水利枢纽和黄河小浪底水利枢纽的坝基和岸坡岩体内软弱夹层的微观结构及力学试验研究发现，泥化带内错动泥化面的抗剪指标最低，其原因是由于片状粘土矿物近似平行于错动泥岩面的定向排列所致。坝基岩体内如有软弱夹层，会影响坝基岩体的抗滑稳定性。河谷谷坡或道路边坡岩体内存在软弱夹层，往往会导致斜坡崩滑失稳。软弱夹层的厚度，层面的起伏差和粗糙度，对其力学性能影响较大。一般取流变起始强度作为软弱夹层的抗剪强度值。这个值相当于屈服强度，约为其峰值强度的80％。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条