神府-东胜煤田采煤塌陷区塌陷强度与风沙蚀积量相关分析

Correlation Analysis Between Regional Aeolian Sand Subsidence Intensity and Deposition in Shenfu-Dongsheng Coal Field

以神府-东胜煤田补连塔矿风沙区为例,通过野外系统观测,以非塌陷区为对照研究了不同塌陷年限T2004年塌陷区和T2005年塌陷区塌陷强度、区域风沙蚀积量和蚀积强度变化,分析了不同塌陷强度的单体沙丘在植被盖度约为10%时,塌陷强度与区域风沙蚀积量的相关关系。结果表明：采煤塌陷后,区域风沙蚀积量受起沙风（≥5 m/s）频率、塌陷强度和地表结构等因素的影响最为明显。因此本文研究的主要目的是通过研究不同塌陷年限塌陷区和不同塌陷强度单体沙丘不同部位的风蚀积沙规律,为有效控制采煤塌陷后地表风沙运动而采取科学的措施提供依据。

Taking Bulianta aeolia desert area of Shengfu-Dongsheng coal filed as an example, the subsidence intensity of T2004 and T2005 subsided area, regional aeolian corrosive accumulation and corrosive intensity are studied in comparison with nonsubsided area, as well as the single sand dune under the vegetation cover of 10% and different subsidence intensity, the correlation analysis is made about the subsidence intensity and regional aeolian corrosive accumulation. The result shows that subsidence occurs after mining, the regional corrosive accumulation is greatly influenced by windy frequency （≥5 m/s）, subsidence intensity and surface structure. Therefore the aim is to provide scientific basis for controlling the movement of sand after subsiding by researching the subsiding age of subsided area and the aeolian corrosive principle of different part of single sand dune with different subsidence intensity.