祝介旺. 2018: 蓟县矿山高切坡地质灾害致灾模式及环境综合治理研究—以蓟县大兴峪北矿区高切坡为例. 工程地质学报, 26(2): 348-355. DOI: 10.13544/j.cnki.jeg.2017-027
    引用本文: 祝介旺. 2018: 蓟县矿山高切坡地质灾害致灾模式及环境综合治理研究—以蓟县大兴峪北矿区高切坡为例. 工程地质学报, 26(2): 348-355. DOI: 10.13544/j.cnki.jeg.2017-027
    ZHU Jiewang. 2018: GEOLOGICAL HAZARD MODES AND INTEGRATED ENVIRONMENTAL MANAGEMENT OF HIGHLY INCISED SLOPES IN JIXIAN MINES ILLUSTRATED WITH EXAMPLE OF NORTHERN DAXINGYU MINE, JIXIAN. JOURNAL OF ENGINEERING GEOLOGY, 26(2): 348-355. DOI: 10.13544/j.cnki.jeg.2017-027
    Citation: ZHU Jiewang. 2018: GEOLOGICAL HAZARD MODES AND INTEGRATED ENVIRONMENTAL MANAGEMENT OF HIGHLY INCISED SLOPES IN JIXIAN MINES ILLUSTRATED WITH EXAMPLE OF NORTHERN DAXINGYU MINE, JIXIAN. JOURNAL OF ENGINEERING GEOLOGY, 26(2): 348-355. DOI: 10.13544/j.cnki.jeg.2017-027

    蓟县矿山高切坡地质灾害致灾模式及环境综合治理研究—以蓟县大兴峪北矿区高切坡为例

    GEOLOGICAL HAZARD MODES AND INTEGRATED ENVIRONMENTAL MANAGEMENT OF HIGHLY INCISED SLOPES IN JIXIAN MINES ILLUSTRATED WITH EXAMPLE OF NORTHERN DAXINGYU MINE, JIXIAN

    • 摘要: 随着国家对矿山的关闭,形成了大量的废弃矿山。废弃矿山已成为地质灾害发生的重要载体。天津蓟县以大兴峪北矿区为中心的8个矿区,紧邻城区,总面积达207.8 ha,存在大量人工高切坡,地质灾害严重,影响到人们的日常生活和生存环境。文章以大兴峪北矿区为研究对象,对蓟县白云岩高切坡的破坏模式及致灾因素、灾害治理方法和环境整治措施进行综合研究。研究认为,高切坡主要存在坡面泥石流、崩塌、顺层滑移拉裂、滑移弯曲4种灾害形式,其成因主要是人为的开采改变了坡形,在内外因素综合作用下,触发了顺层边坡的破坏机制,形成一系列灾害。灾害的治理宜采用削上、补下、锚杆(索)锚固和坡面防护等措施;环境整治可采用平台植树、穴式种植、藤类爬坡和喷播绿化等方法。由于研究区位于城市规划范围之内且居于交通要道,环境的美化需重点考虑,环境整治措施及效果制约着灾害治理措施的选择,故对研究区选用削坡、局部加锚杆的方式治理灾害。在消除灾害的同时,削置平台,为绿化提供场地,种植乔、灌木,取得了很好的综合治理效果。

       

      Abstract: With the national-wide mines shutdown, a great amount of mine slots are abandoned, which become one main media for the formation of geological hazards. At the center of Daxingyu Mine, there are eight mine lots close to the county of Jixian. Their total area is 207.8 ha. The existing man-made highly incised slopes lead to frequent geological hazards, and seriously influence the routine living environment of the residents in those areas. This paper takes the Daxingyu Mine of Jixian as the example, and investigates in detail for the damage modes and hazard factors, possible hazard protection and integrated environment management solutions for the highly incisive slopes formed with dolomite rocks in the Jixian mine area. Based on the investigation, there are four types of hazard modes including slope debris flow, collapse, bedding slip cracks, and slip bending. They mainly result from the change of slope shape with the man-made digging. With the multiple influence of internal and external factors, the formation of bedding landslide can be triggered, which finally leads to the series of geological hazards. The proper hazard protection solutions include top cutting, bottom filling, anchor reinforcement, slope protection. The integrated environment remediation should employ platform tree planting, hole planting, vine climbing and spray seeding greening methods. In addition, the targeted mine slot is located within the urban planning scope close to a critical traffic junction. So the environment landscape design should also need to be considered seriously. Thus the solutions of slope cutting and local anchor reinforcement can be selected for the hazard remediation, which will highly rely on the integrated environment management measures. In addition, the arbor and bushes can be planted on the created platform with the slope-cutting, which results in a very good comprehensive treatment measure.

       

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