广西永福某石灰岩矿山地质环境问题及恢复治理探讨

Discussion on Geological Environment Problems and Recovery of One Limestone Deposit in Guilin City of Guangxi Province

摘要:

桂林是广西石灰岩矿的主要产地之一，开采石灰岩的矿山达250个。桂林地区石灰岩矿山的地质环境问题基本类似，发育的地质灾害主要有崩塌、滑坡、岩溶地面塌陷。该文以广西永福某石灰岩矿山为例，在收集矿山地质资料的基础上，通过详细的野外调查，发现该矿山地质环境问题主要为采场的高陡岩质边坡，基岩裸露，破坏和影响了地貌景观，容易引发岩质崩塌灾害；矿山功能区和废渣、表土的堆放占用和破坏了土地资源，可能引发小型的滑坡；灰岩石料加工等人类工程活动致使粉尘污染和噪音污染较为严重，对附近居民的生活环境造成了影响。针对矿山的地质环境问题划分了恢复治理分区，提出了相应的工程措施，恢复治理工程的实施可从根本上改变矿山采场的地貌景观，恢复破坏和压占的土地资源，消除地质灾害隐患，创造绿色矿山，为桂林地区石灰岩矿山的地质环境问题恢复治理提供参考。

Abstract:

Guilin city is one of the main origin areas of limestone deposits in Guangxi province. There are 250 limestone deposits. Geological environmental problems are similar in Guilin city, such as collapse, landslide and karstic ground subsidence. Based on geological datas and field investigation, main geological and environmental problems are high and steep rock slope, exposed bedrock damage and landscape destructions which may cause collapse disasters. Waste residue occupying land resources may cause landscape disasters, and processing stone products may cause serious dust pollution deteriorate the living environment of nearby villages. In this paper, geological and environmental problems, its damage and controlling countermeasures have been analyzed, and geological environment remediation zones have been divided. Environmental engineering projects can fundamentally change the landscape of the mined areas and recovered the land source, eliminate the potential hazards, create green mines and set an examples for geological environmental protection of limestone mining in Guilin as well.