Sentence examples for mining intensity from inspiring English sources

Coal seam gas content increases with greater depth and mining intensity in underground coal mines, and is a primary factor in mining safety and efficiency.

Under the influence of large thickness of coal seam and high mining intensity, the LLTCC mining operation in ultra-thick coal seam shows a "low gas storage, high absolute gas emission" feature.

Considering possible impact of economic buffering and collected data and documents, this paper finally selected land use database in 1996, 2005 and 2012, representing three types of mining intensity, as data sources.

(3) With increased mining intensity, coal output and recovery, the proportion of roadways with large cross-section, roadways strongly affected by mining activities, and roadways retained or driven adjacent to the gob areas has enhanced obviously.

For examples, the statistical data from NIOSH (The National Institute for Occupational Safety and Health) indicated that: for USA underground coal mines, the pneumoconiosis detection percentage of workers exposure to coal dust had arisen from 4%to9% 9 %, from 1999 to 2007, as the mining intensity increased (Hall 2008).

Following the MinD and MinE concentration profiles along the compartment length over time, we found that the dynamic profiles are characterized by the following succession of events: First, attachment and increase in concentration of MinD at one site of the compartment, then delayed attachment of MinE to MinD and increase in MinE intensity at the trail of MinD.

With an increase in depth of coal mining, outburst intensity and frequency tend to increase, posing more threats to lives of miners and facilities.

As mining depth and intensity increase, mining geology and technical conditions are becoming increasingly complicated.

Table 1 gives an overview of the assumed development for economy, technology, trade, mining risk, cobalt intensity, and mining that are used to build the scenarios for cobalt demand and supply between 2007 and the year 2050.

With the increase of mining depth and intensity, rockburst has become a common safety problem for underground coal mines (Dou and He 2001; Brady and Brown 2004).

With the increase of mining depth and intensity, the complexity of geological structure, gas content and pressure increase, the risk of coal and gas outburst disaster is also growing (Chen 2011; Fan et al. 2017).