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矿石垫层
相关语句
  ore cushion
     EXPERIMENTAL STUDY ON WAVE ATTENUATION CAUSED BY ORE CUSHION
     矿石垫层消波分析实验
短句来源
     Hign pressure airflow caused by caving in of the top of the underground space in the mine is simulated by filling in shock wave pipe with high pressure gas. Ore cushion is simulated by filling in the pipe with gravels.
     在激波管内充填高压气体模拟矿顶冒落后产生的高压气浪 ,充填块石模拟矿石垫层
短句来源
  “矿石垫层”译为未确定词的双语例句
     Since this methodhas been used in China's metal mines, especially in gold mines,important progresses in thetechnology have extended in the following aspects:(1)The crushed ore pad left in advancewas covered with plastic film and the gradient of entrance was established at twice.
     该法在我国地下金属矿山,尤其是黄金矿山应用以来,在工艺技术上取得了如下重要进展。 (1)预留碎矿石垫层加盖塑料薄膜技术,进路坡度分两次形成;
短句来源
  相似匹配句对
     EXPERIMENTAL STUDY ON WAVE ATTENUATION CAUSED BY ORE CUSHION
     矿石垫层消波分析实验
短句来源
     THE TECHNOLOGICAL CATEGORIES OF ORES
     矿石工艺类型
短句来源
     The design of sand bedding
     砂垫层设计
短句来源
     DETERMINATION OF GOLD 1N ORES
     矿石中金的测定
短句来源
     PROTECTION FUNCTION OF SOIL CUSHION
     土垫层的防护作用
短句来源
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The underhand slice stoping with cemented filling is the most effective min-ing method for incompetant orebody with complicated mining conditions. Since this methodhas been used in China's metal mines, especially in gold mines,important progresses in thetechnology have extended in the following aspects:(1)The crushed ore pad left in advancewas covered with plastic film and the gradient of entrance was established at twice.(2)Once filling of three layers at different heights of the entrance with mortar of varied...

The underhand slice stoping with cemented filling is the most effective min-ing method for incompetant orebody with complicated mining conditions. Since this methodhas been used in China's metal mines, especially in gold mines,important progresses in thetechnology have extended in the following aspects:(1)The crushed ore pad left in advancewas covered with plastic film and the gradient of entrance was established at twice.(2)Once filling of three layers at different heights of the entrance with mortar of varied ratioswas conducted,and a part of cement was replaced by loess in the top filling layer of the en-trance. (3)The suspended vertical reinforcement in the filling body was omitted,the fillinglevel indicators were installed and the lavout of steel fill-pass set was conducted in ad-vance. (4)Contorlled sings free face blasting without cutting holes was used.This paperpresents these new technologies and makes an approach to their trend.

下向分层胶结充填采矿法是矿岩破碎、开采技术条件复杂的难采矿体最有效的采矿方法。该法在我国地下金属矿山,尤其是黄金矿山应用以来,在工艺技术上取得了如下重要进展。(1)预留碎矿石垫层加盖塑料薄膜技术,进路坡度分两次形成;(2)进路不同高度上分3层一次充填不同配比的料浆,进路最上层用黄泥代替部分水泥;(3)取消充填体中的吊挂竖筋,设置充填液面指示装置和预埋充填小井;(4)单自由面无掏槽控制爆破技术。本文介绍了这些新工艺技术,并探讨其发展方向。

With respect to the stability of level-pillar changed, the treatment of Shouwangfen CopperMine's No. S6 mined-out area, which had been decided to insulate the area with level-pillar, also changed intocaving the leval pillar as the mineral base. The design and putting into practice are indicated emphatically.

S6水平阶段矿柱是1984年确定的,用于分隔处理空区,因其稳固性发生变化,又改用崩落矿柱作矿石垫层处理空区方案。本文重点介绍方案的核心──水平阶段矿柱的崩落设计和施工方法。

Hign pressure airflow caused by caving in of the top of the underground space in the mine is simulated by filling in shock wave pipe with high pressure gas.Ore cushion is simulated by filling in the pipe with gravels.The experiments have been done in the effect of the wave attenuation in which the ore cushion has multifarious thickness and porosity.The laws of the wave attenuation and the method of calculating thickness of the ore cushion have been found out.

在激波管内充填高压气体模拟矿顶冒落后产生的高压气浪 ,充填块石模拟矿石垫层。对不同厚度、不同孔隙率的垫层的消波作用进行了试验 ,并在矿山进行了现场实验 ,得出了一致的规律。获得了垫层厚度的确定方法。

 
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