含覆

煤升温氧化过程中含断层上覆岩层对氡迁移影响的研究

Study on Effects of Overlying Strata with Faultage on Transfer of Radon in the Process of Coal Oxidation

两淮地区的大多煤系地层都被巨厚松散层所覆盖，其底部的第四含水层直接覆于煤系地层之上，威胁煤矿安全生产。

In Huaibei mining area , most coal measure strata are covered with extremely thick loose strata , at the bottom of which the fourth aquifer threatens the safety of coal mining .

含水层和上覆弱透水层水文地质参数的计算方法

Method for the Analysis of Hydrogeologic Parameters in Aquifer and Aquitard

福建省大田县广平含煤区推覆构造特征及找煤预测

Nappe Structure Features and Looking for Coal in Guangping Coal-bearing Area , Datian County , Fujian Province

3在含病毒底泥上覆不同网目的筛绢，同时使用含氯消毒剂处理含病毒底泥进行效果对比。

Effects between covering different sizes mash on the sediment with virus and treating sediment with virus by chlorine-containing disinfectant are also compared .

在我国华北煤田石炭&二叠纪煤系地层的底部，存在着含水丰富的奥陶纪石灰岩。②含煤建造上覆缺失湖相建造；

Below Carboniferous-Permian coal-bearing formations in coal fields of North China , there is a stratum of Ordovician limestone containing an abundant supply of water .

本项工作系统地进行了膨胀土的物理-力学性质试验及分析，尤其是膨胀率与干容重和含水量及外覆压力关系分析。

Systematic physio-mechanical properties test and analysis , especially analysis of relationship between expansion rate , dry density , water content , and overlying pressure , are carried out .

通过对压实土的增温变形试验，探讨在不同含水量及上覆压力作用下，压实土的增湿变形的变化规律。

This paper discusses the changing laws of moisture boost deformation of the compressed soil with different moisture content and pressure through the moisture boost deformation experiment on the compressed soil .