1) coal seam stability
煤层稳定程度
1.
From standards to criteria the coal seam stability is always a qualitative classification,it is difficult to grasp in practical works and cannot be treated equally without discrimination.
数理统计法虽然赋予了煤层稳定程度一个量的概念,但由于只考虑到各数据点的离散程度,不能反映各数据点的分布状态,亦不能真实、客观体现煤层的变化程度。
2.
Analyzing coal seam stability quantitatively through the mathematical statistics has major significance in exploration works to confirm exploration area coal seam stability type,workload layout reasonably in exploration engineering.
通过选用不稳定指数、煤层厚度、变异系数、可采性指数等四个指标,对内蒙古新上海一号井田十层可采煤层的稳定性进行定量性评价,结果与实际勘查工作中确定的煤层稳定程度基本相符。
3.
Because of qualitative divisions of structure complexity and coal seam stability were used in geological reports of Puxi and Futaixia minefields caused deviation in results.
浦溪、富台下等井田地质报告中采用定性方法划分构造复杂程度与煤层稳定程度,其结果存在偏差。
2) unstable coal seam
不稳定煤层
1.
Longwall mining along the dip of the unstable coal seam and strata control;
不稳定煤层倾斜长壁开采及矿压控制
2.
According to the analysis of the feature and origin of unstable coal seam,the article introduces the corresponding methods of developing and mining district preparation,which provide a technological reference for extracting unstable coal seam.
通过不稳定煤层的特点及成因分析,采取与之相适应的开拓及采区准备方法,为开采不稳定煤层提供了参考。
3.
The raining of unstable coal seam is a thorny thing for miner.
不稳定煤层的开采,历来是采矿工作者的棘手问题。
3) coal bed's stability
煤层稳定性
4) stable and thick coal bed
稳定厚煤层
5) stability grading of coal seam
煤层稳定型别
6) coal roof stability
煤层顶板稳定性
1.
Coal roof faulted structure is most important factor to influence coal roof stability.
煤层顶板断裂构造是煤层顶板稳定性影响因素中最重要的因素,以兖州煤田鲍店煤矿为例,分析了兖州煤田顶板断裂构造特点,探讨其对煤层顶板稳定性影响,分析了小断裂对煤层顶板的稳定性影响,断裂密集区的煤层顶板最易垮落,特别是交错断裂区更易产生顶板垮落式冒顶。
2.
3 coal roof stability is mainly influenced by roof structure and lithology,therefore quantizing the two factors first,through 3D seismic prospecting comprehensive interpretation and wave impedance inversion interpretation,then normalized wave impedance data,made the impedance data and quantized structure data .
考虑3煤层顶板稳定性主要受其顶板的构造信息和岩性信息影响,因此首先依据三维地震勘探综合解释成果及波阻抗反演解释成果对二者进行定量化,然后对波阻抗数据进行归一化处理,使得波阻抗数据和量化后的构造数据具有相同的变化范围及等量贡献。
补充资料：稳定/稳定浴
分子式：
CAS号：
性质：照相中的稳定作用是指防止感光材料在保存过程中由于药膜中残留药液的作用而引起的暗褪色、色污染及霉变等弊病。通过正常冲洗或无水洗加工最后一个工序——稳定工序，可稳定照相影像，使之不变或变化极小。能起稳定作用的浴液称稳定浴。无水加工中的稳定浴主要由pH值控制剂、铁隐蔽剂、防霉剂、坚膜剂、软水剂、有机助剂等组成。
CAS号：
性质：照相中的稳定作用是指防止感光材料在保存过程中由于药膜中残留药液的作用而引起的暗褪色、色污染及霉变等弊病。通过正常冲洗或无水洗加工最后一个工序——稳定工序，可稳定照相影像，使之不变或变化极小。能起稳定作用的浴液称稳定浴。无水加工中的稳定浴主要由pH值控制剂、铁隐蔽剂、防霉剂、坚膜剂、软水剂、有机助剂等组成。
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