The method was adopted to test the stress field of the adits with different elevations on both banks of a large hydropower station. 本文采用该方法对某大型水电站枢纽区两岸不同高程勘探平铜洞壁应力场作了较系统测试。
Special drilling or adits outside orebody may be required. 可能要求在矿体外作专门钻探或坑探。
Deformation properties of horizontal round adits in viscoelastic rocks with fractional Kelvin model 具有分数Kelvin模型的粘弹性岩体中水平圆形硐室的变形特性
The permeability value K from water seepage test in adits with the test scale 1-2 m is dispersed between 10-4 and 101m/ d. 平硐渗水试验的试验尺度为1~2m,渗透系数为10-4~101m/d,非常离散;
The major exploratory work at the phase of technical design included 1:1000 scale engineering geological mapping, pit and trench exploration, 20 exploratory sections, 216 drill holes, 400 m long adits and other various tests. 技术设计阶段主要勘察工作量有:1:1000工程地质测绘,坑槽探,勘探剖面20条,钻孔216个,400m平洞和各类试验。
Based on different usages, the adits are designed with different diameters, slopes and supporting structures in accordance with suitable geological and topographical conditions along with the optimum locations and construction sites selected. 支洞根据其不同的用途,寻求适合的地质与地形条件,选择最佳的支洞位置与施工场地,进行不同的洞径、坡度及支护形式设计。
A new model of analysis the characters of deformation of viscoelastic horizontal round adits in rocks 一种分析粘弹性岩体中水平圆形硐室变形特性的新模型
The exploration adits in the dam area reveal that the pyrite layer is distributed in the dolostone of Sinian, the elevation of which is lower than the impounded levl of the power station. 坝区平硐勘探揭露有黄铁矿层分布于震旦系白云岩中,其分布高程低于电站蓄水水位。
The rock mass quality was assessed based on the data obtained from exploration adits with the methods of engineering geological classification for surrounding rock mass, BQ, RMR and Q-system successively. 基于勘探平硐获取的资料,运用围岩工程地质分类法、BQ法、RMR法和Q系统法进行了地下厂区岩体质量评价;
This paper has described the principle and method of using the dual frequency instrument to solve the problem of hydraulic connection for water leakage in wells and adits. 介绍一种利用双频仪解决矿区井巷巷道中漏水水力联系的原理和方法。
The design in this paper includes the three step composite grouting method used for the water plugging in adits under the hydrodynamic condition, and the application of directional drilling to the water plugging in underground deep workings. 本文工程设计阐述了在动水条件下,封堵水平巷道的三段式组合灌浆方法,以及定向钻进在地下深井巷堵水工程中的应用。
Entering the station main construction from adits, force transformation process is the most important link of structural safety and quality. 由风道进入车站主体施工,受力转换工序是关系结构安全、质量的重要环节。
The application of dual frequency gradient survey to the detection of hydraulic connection for water leakage in wells and adits 双频梯度测量探查井巷漏水水力联系
Structural arrangement way should follow the implementation principle of dynamic design and informational construction, the localization method of arranging adits and shafts by tracing slippery belt, the excavation procedure of layered parallel construction, and the function classification of different adits and shafts. 总结认为:结构布置方式应遵循动态设计、信息化施工的实施原则;追踪滑带确定洞井的定位方法;分级平行施工,由平洞至竖井的开挖程序和不同洞井的功能分类。