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mining cranny
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  采动裂隙
     There are fractured zone water disaster, glide fracture water disaster, mining cranny water disaster, man-made channels water disaster based on flood water channel classification.
     根据突水通道分类,有破碎带水害、滑动构造水害、采动裂隙带水害、人为通道水害等。
短句来源
     Through the analog stuff simulation test in lab,analyse the destroy situation of overlying strata and the law of abutment stress distribution,and analyse the character of roof fallen and mining cranny growth.
     通过实验室相似材料模拟试验,分析了近距离采空区下进行采煤,上覆岩层的破坏状况和支承压力分布规律,以及顶板冒落和采动裂隙发育的特征。
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  相似匹配句对
     WEB MINING
     Web挖掘
短句来源
     On Mining Right
     关于采矿权
短句来源
     The Study of Induce-crack Mechanicals and Cranny's Development Process about Hydraulic Fracture in Mining-coal Bed
     本煤层水力压裂致裂机理及裂隙发展过程研究
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there are 14 ts submersions because of C_3 and O_2 limestone water, and 6 ts submersions because of gob water, and 1 time submersions because of flood based on 21 type submersions. It is obvious the main water come from C_3 and O_2 limestone water. There are several kinds of waterdisaster based on water source classification,such as water uisaster from crackszones inroof,from thin limestone under floor,from Ordovician and cambriian limestone under floor.from gob,as well as from surface water. There are fractured...

there are 14 ts submersions because of C_3 and O_2 limestone water, and 6 ts submersions because of gob water, and 1 time submersions because of flood based on 21 type submersions. It is obvious the main water come from C_3 and O_2 limestone water. There are several kinds of waterdisaster based on water source classification,such as water uisaster from crackszones inroof,from thin limestone under floor,from Ordovician and cambriian limestone under floor.from gob,as well as from surface water. There are fractured zone water disaster, glide fracture water disaster, mining cranny water disaster, man-made channels water disaster based on flood water channel classification. There are 4 sorts cause of submersions put forward.

在郑州矿区二十一次典型突水案例中,有十四次是二1煤底板C3灰岩水和O2灰岩水所致,另有六次为老窑水所致,一次是洪水灌入造成淹井。经综合分析,可看出矿区的水害主要来自C3、O2灰岩水。按突水水源分类,在二十一次突水案例中有顶板裂隙水害、底板薄层灰岩水害、底板奥灰—寒灰水害、老窑水害和地表水害;根据突水通道分类,有破碎带水害、滑动构造水害、采动裂隙带水害、人为通道水害等。根据郑州矿区水害的类型,总结提出了四种水害发生原因,有针对性地提出了不同水害的防治技术。

Through the analog stuff simulation test in lab,analyse the destroy situation of overlying strata and the law of abutment stress distribution,and analyse the character of roof fallen and mining cranny growth.Analyse the safety influence of the law of overlying strata pressure to the coal exploitation,so provide the effective bases of the theory and practice for the safety mining coal under close quarters goal,and prevent the cranny water of overlying strata inrushing.

通过实验室相似材料模拟试验,分析了近距离采空区下进行采煤,上覆岩层的破坏状况和支承压力分布规律,以及顶板冒落和采动裂隙发育的特征。分析了上覆岩层来压规律对煤炭开采过程中的安全影响,以此为在采空区下安全采煤防止上覆岩层裂隙水的侵入提供有效的理论和实践上的依据。

 
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