1) periodic roof weighting
顶板周期来压
1.
The relationship between periodic roof weighting and gas emission from stopping area was studied by monitoring on site.
通过现场监测研究了顶板周期来压与采场瓦斯涌出变化之间的关系,并对工作面超前支承压力变化和采空区老顶垮落对瓦斯流动的影响进行了分析。
2) periodic weighting of the main roof
老顶周期来压
3) periodic roof pressure
周期顶板压力
4) roof weighing
顶板来压
1.
A new adaptive pattern recognition method is presented for forecasting roof weighing of high-production and high-efficiency face.
介绍高产高效工作面基于智能技术的顶板来压预测预报方法——自适应模式识别方法,即灰色等维拓扑方法预测预报顶板来压。
5) periodic weighting
周期来压
1.
When working face advance is more 30 meters each time,main roof has a periodic weighting.
当工作面推进到60 m左右,老顶出现初次破断,形成初次来压,之后工作面每推进30 m,老顶出现周期来压。
6) periodical pressure
周期来压
1.
it obtained the rule of strata behaviors of the working face, and analyzed the periodical pressure arose from periodical break occurred in nether roof, and explained mechanical principle of the road retained for next sublevel, the technical measures of strata control under this condition are put forward .
根据广西呼略矿不稳定煤层倾斜长壁开采的工业性试验,以及矿压观测成果,得出了工作面的矿压显现规律,分析了由直接顶周期性断裂而引起采场的周期来压现象,阐述了沿空成巷的力学原理,提出了在这种开采条件下岩层控制的技术措施。
2.
With the study on the moving law of the surrounding rocks in the seam mining processing of the fully mechanized coal mining face in 4-2 seam of Fengshuigou Mine,the paper understood the initial pressure and the periodical pressure distance of the 4-2 seam roof pressure,the support strength of the hydraulic supports in the coal mining face,the stress variation and stress a.
综采工作面矿压显现规律对矿山生产实践具有深刻的指导意义,文章通过对石场煤矿4-2煤层综采工作面围岩在煤层开采过程中的移动规律进行研究,掌握了4-2煤层顶板初次来压和周期来压步距、工作面支架支护强度、围岩破坏活动过程煤壁中应力变化大小和应力影响范围。
补充资料：压砧,压头,顶锤
CAS: 79983-71-4
分子式: C14H17Cl2N3O
分子质量: 314.21
中文名称: 己唑醇；(RS)-2-(2,4-二氯苯基)-1-(1H-1,2,4-三唑-1-基)-己-2-醇；压砧,压头,顶锤
英文名称: alpha-butyl-alpha-(2,4-dichlorophenyl)- (+-)-1h-4-triazole-1-ethanol
(rs)-2-(2,4-dichlorophenyl)-1-(1h-1,2,4-triazol-1-yl)hexan-2-ol
(rs)-2-(2,4-dichlorophenyl)-1-(4h-1,2,4-triazol-4-yl)hexan-2-ol
4-dichlorophenyl)-1h-1,2,4-triazole-1-ethanol (+-)-alpha-butyl-alpha-(
anvil
hexaconazole
pp 523
alpha-butyl-alpha-(2,4-dichlorophenyl)- (+-)-1h-4-triazole-1-ethanol
1,2,4-Triazole-1-ethanol,alpha-butyl-alpha-(2,4-dichlorophenyl)-,(+/-)
性质描述: 纯品为无色晶体，熔点111℃，蒸气压0.11mPa(20℃) 25℃，密度1.29g/cm3。溶解性（20℃），水0.018mg/L，甲醇246g/L，甲苯59g/L，稳定性，室温（40℃以下）至少9个月内不分解，酸；碱性（PH5，7～9）水溶液中30天内稳定。PH7水溶液中紫外线照射下10天内稳定。
用途: 该品属唑类杀菌剂，是留醇脱甲基化抑制剂，对真菌尤其是担子菌和子囊菌引起的病害有广谱性的保护和治疗作用。
分子式: C14H17Cl2N3O
分子质量: 314.21
中文名称: 己唑醇；(RS)-2-(2,4-二氯苯基)-1-(1H-1,2,4-三唑-1-基)-己-2-醇；压砧,压头,顶锤
英文名称: alpha-butyl-alpha-(2,4-dichlorophenyl)- (+-)-1h-4-triazole-1-ethanol
(rs)-2-(2,4-dichlorophenyl)-1-(1h-1,2,4-triazol-1-yl)hexan-2-ol
(rs)-2-(2,4-dichlorophenyl)-1-(4h-1,2,4-triazol-4-yl)hexan-2-ol
4-dichlorophenyl)-1h-1,2,4-triazole-1-ethanol (+-)-alpha-butyl-alpha-(
anvil
hexaconazole
pp 523
alpha-butyl-alpha-(2,4-dichlorophenyl)- (+-)-1h-4-triazole-1-ethanol
1,2,4-Triazole-1-ethanol,alpha-butyl-alpha-(2,4-dichlorophenyl)-,(+/-)
性质描述: 纯品为无色晶体，熔点111℃，蒸气压0.11mPa(20℃) 25℃，密度1.29g/cm3。溶解性（20℃），水0.018mg/L，甲醇246g/L，甲苯59g/L，稳定性，室温（40℃以下）至少9个月内不分解，酸；碱性（PH5，7～9）水溶液中30天内稳定。PH7水溶液中紫外线照射下10天内稳定。
用途: 该品属唑类杀菌剂，是留醇脱甲基化抑制剂，对真菌尤其是担子菌和子囊菌引起的病害有广谱性的保护和治疗作用。
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