兖州煤田采煤沉陷土地利用分区研究

Characteristics of Karstic Caves in Southern Mountain Areas of Jinan City

摘要:

从采煤沉陷土地持续利用角度,依据沉陷土地利用的自然和社会特性,提出采煤沉陷土地的分区方案;以兖州煤田为例,进行实用分区,并依据各分区的特点提出持续利用方向和方案;最后,根据分区实例,就采煤沉陷土地的持续利用提出几点建议。

Abstract:

Karstic caves develope well in southern mountain are as in Shandong province. Among 34 caves,7 are rather big with the length of 50～5 00m. From basic developing characteristics of caves to see, many typical altered morphotypes are kept in caves (such as fossette and ripple type), but sedimenta ry in caves is rather simple, which are majorly composed of fragemental matters produced by colluvial deposit, residual deposit and percolating water, while che mical sedimentary produced by CaCO 3 is rather few. Caves appear as dry cave ch aracteristics. From the origin to see, large caves belong to secondary percolain g belt caves formed by percolating water; while small caves belong to crack type percolating belt cave, and stable hole formed by different weathering functions . These caves have large exploration potentiality.