1) coal mass fracture
煤体压裂
1.
By means of large sized coal sample of 300 mm×300 mm×300 mm, the process of coal mass fracture is studied systematically.
通过对 30 0mm× 30 0mm× 30 0mm的大煤样压裂实验 ,系统研究了煤体压裂过程 ,并运用宏观损伤力学原理 ,建立了煤体压裂本构方程和破碎块度分布公式。
2) top coal fracture
顶煤压裂
1.
The author systematically studies change law of the damage variation D on top coal fracture with Mining depth H,coal strenth R c and seam thickness by elastic plastics coupling finiteelement numerical value analysis with cross test.
运用弹塑性耦合有限元数值分析正交试验法 ,系统研究了放顶煤开采中顶煤压裂的损伤变量 D随开采深度 H,煤的强度 Rc 和煤层厚度的变化规律 ,得出开采深度和煤的强度是影响顶煤损伤参数的主要因素 ,煤层厚度等因素影响是微弱
3) thrust
[英][θrʌst] [美][θrʌst]
煤柱压裂
4) hydraulic fracturing in coal reservoir
煤层压裂
5) fissures of coal
煤体裂隙
1.
The main geological factors which influenced top coal caving and broken characteristic contain:the strength of coal,the mining depth of coal seams,the features of coal seams with middle band,the thickness of coal seam,the fissures of coal,the roof features of coal-bed,etc.
影响顶煤垮落和破碎特性的主要地质因素有煤体强度、煤层采深、夹矸层特征、煤层厚度、煤体裂隙、煤层顶板特征等。
6) issured coall
裂隙煤体
补充资料：标准煤(见煤当量)
标准煤(见煤当量)
standard coal
、~‘~1人、4《1工兀飞coal)见煤当等
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条