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1)  soft and intricate ore-rock
软弱复杂矿岩
1.
A circular increment step load and unload method with many advantages is employed;and a set of creep experiments are performed to study the viscoelasto-plastic characteristics of soft and intricate ore-rock in Jinchuan Mine III.
采用集众优点于一体的分级增量循环加卸载方式,对金川有色金属公司III矿区软弱复杂矿岩进行蠕变试验,试验数据按可恢复的瞬时弹性应变与滞后黏弹性应变,以及不可恢复的瞬时塑性应变与黏塑性应变进行分析,得出软弱复杂矿岩黏弹塑性特性的基本规律。
2)  complex soft rock tunnel
复杂软弱岩层大巷
1.
The complex soft rock tunnel has engineering characteristic of large deformation,difficult to support and continuous distort destroys,practice indicates that it is difficult to control with existing support.
复杂软弱岩层大巷具有变形量大、难支护、围岩持续变形破坏的工程特征,实践表明,现有支护难以控制。
3)  complex rock and ore
复杂岩矿
4)  soft rock mine with complex conditions
软岩复杂条件矿井
5)  weak rock
软弱岩体
1.
Influence of weak rock on stress-deformation of auxiliary dam 1~# of Xilongchi upper reservoir;
软弱岩体对西龙池上库1~#副坝应力变形的影响分析
2.
To reinforce slope of weak rock has been tough problem during rock soil engineering, especially for sl-ope consisting of broken weak rock.
软弱岩石的边坡支护一直是岩土工程中较为棘手的问题,尤其是受地质构造破坏形成的破裂破碎软弱岩体的边坡支护问题更为复杂。
6)  Weak strata
软弱岩层
1.
Large section tunnel construction technology in fractured weak strata;
破碎软弱岩层中大断面隧道施工技术
2.
Large-section room construction technique in weak strata in Jinchuan mine area
金川矿区软弱岩层大断面硐室施工技术
补充资料:白云岩矿
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性质:一种以白云石为主要组分的非金属矿产。含少量方解石、石膏、菱镁石等。用作钙镁磷肥原料时,要求含氧化镁>20%,氧化钙>30%。多为露天开采。一般不选矿,含泥量较大时用洗矿法,有时用浮选法。用于生产硫酸镁、轻质碳酸镁、钙镁磷肥等。还可作橡胶和医药的填料、土壤酸度的中和剂。广泛用于冶金、建材、玻璃、陶瓷等部门。

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