water jet assisted mining

用法例句

To solve the tradition technique difficulties of aquifer-protective mining in the shallow coal seam with thin bedrock,based on the analysis of the roof water inrush channel features,from the aspect of mining methods.

在分析顶板导水通道特征基础上,针对浅埋煤层采用传统技术实现保水开采的难点,从开采方法本身采取措施,提出了一套较为系统的薄基岩浅埋煤层保水开采新技术。

To solve the difiiculities of aquifer-protective mining,the water cracks distribution characteristics in the overlying strata are studied by physical simulation.

为解决浅埋煤层的保水开采难题,采用物理模拟方法,研究了浅埋煤层大采高长壁工作面的采动覆岩导水通道的分布特征。

The rational mining level and vertical height should be on the premise of the rational stage inclined length.

合理的开采水平垂高应以合理的阶段斜长为前提,并能使开采水平有必须的储量和合理的服务年限,井田开采有较好的技术经济效果。

Determining reasonable mining height in water-preserved-mining for sandy-soil-rock type of overlying strata in northern Shaanxi Province;

陕北沙土基型覆盖层保水开采合理采高的确定

Study on water-preserved-mining discriminating system on the condition of the shallow coal seams;

浅埋煤层保水开采识别系统研究

Study on Parameters of Water-preserved-mining Grouting Bed-separation in YuShuwan Mine YuShen Coalfield;

榆神矿区榆树湾矿保水开采注浆离层参数研究

Fundamental concepts and mechanical analysis of water-resisting key strata in water-preserved mining;

保水开采隔水关键层的基本概念及力学分析

Aiming at the problem of drought and water shortage in north Shaanxi,we analyzed principles for designing room and pillar water-preserved mining method.

针对陕北干旱缺水的实际,分析了房柱式保水开采的设计原则。

Based on analyzing the conception of structure key-stratum,the notion of generalized key-stratum and water-preserved mining was put forward.

在分析结构关键层内涵的基础上,提出了广义隔水关键层和保水开采的基本概念;依据地层的含、隔水结构,得出隔水层的2种最基本模式。

SIMULATION OF CLAY AQUIFUGE STABILITY OF WATER CONSERVATION MINING IN SHALLOW-BURIED COAL SEAM

浅埋煤层保水开采隔水层稳定性的模拟研究

Study on Parameters of Water-preserved-mining Grouting Bed-separation in YuShuwan Mine YuShen Coalfield;

榆神矿区榆树湾矿保水开采注浆离层参数研究

Simulation Research and Actual Measurements on Water Conservation Mining and Overlayer Strata Movement of Thick Base Rock Shallow Seam

近浅埋煤层保水开采覆岩运动模拟研究与实测

Study on Pillars Stability by Keeping Water in Strip Mining for Small and Medium-sized Mines in Northern Shanxi Province

陕北中小矿井条带保水开采煤柱稳定性研究

Discussion on Technology Mode for Mine Underground Backfilled and Water Keeping Mining

煤矿井下充填保水开采的技术模式探讨

Study On Coal Mining for protecting Ecological Water Level in the Ecological Fragile Mining Area

陕北生态脆弱矿区煤炭与地下水组合特征及保水开采

The Technology and Usable Conditions Classification of Aquifer-Protective Mining in Shallow Sand-Bedrock-Coal Seam;

沙基型浅埋煤层保水开采技术及其适用条件分类

Study on Discriminating Model of Water-preserved-mining Base on the Method of Probability and Integral on the Condition of the Shallow Coal Seam

浅埋煤层条件下基于概率积分法的保水开采识别模式研究

Groundwater Exploitation and Ecological Environment Protection in Weigan River Basin, Xinjiang, P.R. China;

新疆渭干河流域地下水开采—生态环境保护研究

Key Controlling Regions and Main Measures for Soil and Water Conservation in Coal Mining Area

煤矿开采区水土保持的治理重点与主要措施

The Groundwater Potential Analyasis and Water Environmental Protection Research in Water Source Area of Futuan River;

日照市付疃河水源地地下水资源开采潜力分析及水环境保护研究

In areas where groundwater has already been overdrawn, strict control on drawing shall be imposed and effective measures shall be taken to protect groundwater resources and control land subsidence.

在地下水已经超采的地区，应当严格控制开采，并采取措施，保护地下水资源，防止地面沉降。

flat back cut and fill method

水平分层充填开采法

The Study of Mining Method the Water Body for South 2 Mining Area;

大平矿南二采区水体下开采方案研究

Injection-production ratio (IPR) directly affects the pressure maintenance and the productivity of reservoirs.

水驱开发油藏的注采比是否合理直接影响着油藏地层压力保持水平及生产能力。

An Approach to the Analytical Method for the Minimum Safe Mining Depth with Solution Mining in Salt Mine

盐矿水溶开采最小安全开采深度分析方法初探

Study on the Floor Water Invasion Regularity Mining on the Top of Water-pressured;

承压水体上开采底板突水规律的研究

Production mechanism and rising law of water cut for edge and bottom water reservoir

边底水油藏开采机理与含水上升规律