我院兼职教授Ravi Jain 教授编辑出版Environmental Implications of Mining and Mineral Processing: Crucial Economic Development and Environmental Issues

发布者:指导老师(2018-04-16)

我院兼职教授Ravi Jain 教授编辑出版Environmental Implications of Mining and Mineral Processing: Crucial Economic Development and Environmental Issues

Edited and published by Pro. Dr. Ravi Jain

    我院兼职教授Ravi Jain,现为欧洲科学院和美国环境工程科学院院士、美国太平洋大学工程与计算机科学学院荣誉院长。获加州州立大学学士和硕士,得克萨斯理工大学博士,哈佛大学MPA和英国剑桥大学高级学者等。曾任美国辛辛那提大学研究和国际工程学院副院长,麻省理工学院和伊利诺伊大学-香槟校区教授。现任并担任国际学术期刊《Clean Technology and Environmental Policy》主编,《Technology Transfer and Commercialization》副主编等。他共著有20本著作和发表了超过190篇的期刊论文,在工程管理领域有很高的学术造诣。Ravi Jain教授在我院作为兼职教授已经6年,为研究生开设课程3门次,指导青年教师和博士生论文写作20余篇。该专辑反映了近年来世界各国在采矿和选矿环境和安全方面的最新进展。有需要的可以到学院资料室查阅原文。以下是主要论文的中英文摘要。

1

Heavy metal pollution and accumulation in maize grown in arable soils located near a lead and zinc slag heap in Yunnan, Southwest China

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 97-115出版年: 2016

        An investigation on heavy metals (HMs), Pb, Zn and Cd pollution and accumulation in maize grown in arable soils along a lead and zinc slag heap in Yunnan, Southwest China was conducted using multivariate statistical methods. Calculation of the Nemerow pollution index revealed that all sampled soils were heavily polluted. The concentrations of Pb, Zn and Cd in the maize samples presented a decreasing trend from roots to shoots to seeds, except for Zn (roots > seeds > shoots), and the content of HMs in the maize roots was positively correlated with both soil total and extractable HMs. Arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) intensively colonised in the maize roots, and their functional roles are discussed in the soils contaminated by HMs. The study results showed that intensive mining and smelting activities contributing to soil metal contamination present a high metal-pollution risk for crops grown.

Keywords: heavy metal; Zea mays; rhizosphere soil; arbuscular mycorrhizal fungus; dark septate endophyte.

中国西南部云南省铅锌矿渣堆附近玉米耕地土壤中的重金属污染和积聚研究

本文采用了多元统计方法对中国西南部云南省铅锌矿渣堆附近耕地土壤中的铅锌镉重金属的污染和积聚对玉米作物生长进行了研究。计算得到的内梅罗污染指数显示,取样的所有土壤都受到严重污染。在玉米样本中,除了重金属锌(根>种子>芽)以外,重金属的积累量表现为从根到芽再到种子逐渐下降的特点。玉米根系中的重金属含量与土壤中重金属的总量及可吸收量成正相关关系。本文研究了集中寄生在玉米根系中的丛枝菌根真菌(AMF)和深色有隔内生菌(DSE)的功能作用,研究结果显示,密集的采矿和冶金活动造成了土壤中含有较高的重金属含量,对植物生长构成高金属污染风险。

关键词:重金属;玉米;根际土壤;丛枝菌根真菌;深色有隔内生菌。

  


2

Ecosystem quality assessment of an aquatic habitat in a globally important boron reserve: Emet Stream Basin (Turkey)

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION : 59 : 2-4 特刊: SI : 116-141 出版年: 2016

         In this study, ecosystem quality of Emet Stream Basin was evaluated by investigating some water quality parameters and trace toxic element accumulations. According to data observed, the contaminated areas had much higher concentrations, an average of 20 times for water and 40 times for sediment in terms of arsenic and 30 times for water and 10 times for sediment in terms of boron than the uncontaminated areas. The amounts of arsenic in muscle tissues of Squalius cii, Capoeta tinca and Barbus oligolepis were much higher and the amounts of zinc in muscle tissues of C. tinca and B. oligolepis were higher than the limit values of Turkish Food Codex. According to results of factor analysis, three factors named as 'mining, agricultural and climate factors' explained 75.41% of the total variance and according to results of cluster analysis, three statistically significant clusters named as 'low, moderate and high polluted areas' were formed.

Keywords: Emet Stream Basin; arsenic; boron; factor analysis; cluster analasis; Turkey.

全球重要的硼储存区土耳其埃梅特流域水生栖息地生态环境质量评估

在研究中,通过水质参数和微量有毒元素积累的研究对埃梅特流域的生态环境质量进行了评估。根据观测数据,与未污染的地区相比,污染区域的元素含量更高,水和沉积物中砷的平均含量分别是未污染地区的20倍和40倍,水和沉积物中硼的平均含量分别是未污染地区的30倍和10倍。鲢鱼、土耳其突吻魮和棋盘鲫鱼类的肌肉组织中砷的含量更高,土耳其突吻魮和棋盘鲫肌肉组织中锌的含量比土耳其食品卫生条例的极限值还要高。根据影响因素分析结果,采矿、农业和气候三因子的影响占总方差的75.41%根据聚类分析结果,形成了低、中、高污染区三个统计学上显著的集群。

关键词:埃梅特流域;砷;硼;要素分析;聚类分析;土耳其。


  

3

Modelling of chemical grout column permeated by water in transparent soil

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 142-155出版年: 2016

           The process of injecting chemical grout into cohesionless soil and its permeation by water are simulated by using a transparent soil model and a finite element model (FEM). The urea-formaldehyde resin is used as the grouting material in the transparent soil modelling. Two black and white charge-coupled device cameras are mounted in an orthogonal position to provide a three dimensional view of the groundwater-grout interface. The groundwater-grout interface is primarily influenced by the advection of the flowing water with increasing distance from the injection point owing to the reduction in the grouting pressure. An equation based on fluid dynamics in porous media and Darcy's law is then proposed to predict the displacement of the groundwater-grout interface in flowing water. A numerical model based on the FEM is also developed to simulate this process. The numerical simulation results are found to match the physical modelling well.

Keywords: transparent soil; chemical grouting; grout column; flowing water.

基于透明土介质的化学动水注浆模型试验研究

利用透明土模型试验和有限元数值模型模拟了动水作用下化学浆液在无粘性土中的扩散形态。透明土模型中的注浆材料选择脲醛树脂浆液。两台垂直相交的黑白电耦合相机提供了地下水和浆液界面的三维观察信息。随着远离注浆点距离的增加,注浆压力逐渐降低,地下水-浆液界面主要受到动水流动的影响。在孔隙介质流体力学和达西定律基础上建立了动水环境下地下水-浆液界面扩散距离的预测方程。数值模拟结果验证了物理建模的有效性。

关键词:透明土;化学注浆;浆液柱体;动水。


  

4

Mechanical properties and failure mechanism of cemented red clay under chemical erosion environment

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION : 59 : 2-4 特刊: SI : 156-168 出版年: 2016

          This paper presents an experimental investigation on the strength behaviour of red clay improved by cement, considering initial water content, cement content and curing pH levels. Along with the unconfined compressive tests, acoustic emission signals were detected to investigate the compression failure. It was shown that unconfined compressive strength (UCS) of the cement red clay rose first and fell later with water content increasing, and maximum UCS was reached at omega = 75%. As cement content increased from 15% to 30% under water content of 75%, UCS of blocks increased from 1.03 MPa to 6.09 MPa. Stress-strain curves of blocks curing in acid condition were divided into four stages: microcracks closure, elastic deformation and stable crack propagation, rapid crack growth and final failure. Acoustic emission signals detected in compression process showed that a large number of microcracks occurred in the second stage with more in the third stage.

Keywords: red clay; cement soil; mechanical properties; failure mechanism; chemical corrosion; acoustic emission.

化学侵蚀环境下胶结红粘土的力学特征和破坏机理

本文对水泥改良红粘土的强度特性进行了试验研究,试验中考虑了初始含水量、水泥含量和养护pH值对结果的影响。在无侧限抗压试验过程中,采用声发射技术对水泥土压缩破坏过程进行了监测。实验发现随着含水率的增加,水泥土的强度先增大后减小,在含水率为75%左右达到最大值。当水泥改良红粘土含水率为75%时,随着水泥含量从15%增加到30%,试块的无侧限抗压强度从1.03 MPa增加到6.09 MPa。在酸性条件下,试样的应力-应变曲线可以划分为四个阶段:微裂缝闭合、水泥土弹性变形与裂纹稳定扩展、裂纹快速发展、破坏失效四个阶段。无侧限抗压试验过程中检测到的声发射信号表明,在第二阶段和第三阶段产生了大量微裂纹。

关键词:红粘土;水泥土;力学特征;破坏机理;化学侵蚀;声发射 


  

5

Mitigating mine subsidence dynamically to minimise impacts on farmland and water resources: a case study

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION : 59 : 2-4 特刊: SI : 169-186 出版年: 2016

        Subsidence related to underground mining can negatively impact farmland and water resources. This paper has developed dynamic subsidence reclamation (DSR-reclamation concurrent with mining) approaches to minimise these impacts and are illustrated using a case study in China. Two reclamation plans using DSR and traditional reclamation (TR-reclamation upon completion of all mining) approaches were designed respectively. Then farmland utilisation, water resources development and cost-benefit analyses were performed for the two sets of plans. The results show that farmland and water resource utilisation by DSR is larger than TR throughout the mining period. Farmland utilisation by DSR increased as much as 12.94%. Similarly, final water volume by DSR was 15.01% more than TR. The total revenue using DSR increased by 24.17% as compared with TR over a ten year period. So, DSR can be a very positive and cost effective approach for protection of farmland and water resources.

Keywords: underground mining; subsidence; farmland; water resource; dynamic subsidence reclamation; DSR.

减轻采煤沉陷对耕地和水资源的影响:案例研究

煤炭地下开采引起的地表沉陷对耕地和水资源有着十分严重的负面影响。为了减轻这些不利影响,本文提出了动态沉陷复垦(DSR-复垦与采矿同步进行)方法,并以中国山东某一高潜水位煤矿为实例进行了验证。首先分别利用动态沉陷复垦和传统复垦(TR-采矿结束后进行复垦)方法设计了两套复垦方案,并进行对比分析。结果显示在整个采矿期间,动态沉陷复垦方案中耕地和水资源利用均比传统复垦方案高。采用动态沉陷复垦后的耕地面积比传统复垦方案增加了12.94%,水资源的总量也提高了15.01%。在对两套复垦方案进行经济效益分析的10年中,利用动态沉陷复垦方法的总收益要比传统复垦方法高24.17%。由此可见,动态沉陷复垦方法不仅能够有效地保护耕地和水资源,而且还具备较高的经济可行性。

关键词:煤炭地下开采;沉陷;耕地;水资源;动态沉陷复垦;DSR


  

6

An experimental investigation on the permeability of chemically grouted sands and its application for mitigating underground sand and water inrushes

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION : 59 : 2-4 特刊: SI : 187-202 出版年: 2016

         This paper presents an experimental investigation on the hydraulic conductivity of coarse sand samples before and after chemical grouting. A newly developed device that applies aerostatic pressure is used to prepare the chemically grouted sand, which can also be used to simulate grouting into soil mass at different depths with different pumping pressures. A static high-pressure triaxial test system is then used to investigate the permeability of the chemically grouted sands under a high confining pressure. The experimental results show that chemical grouting obviously reduces the permeability of sand. The results also show that the hydraulic conductivity of the chemically grouted coarse sand increases with increased hydraulic gradients at a constant confining pressure. The hydraulic conductivity of the chemically grouted sand is generally reduced with increased confining pressure. However, under a high confining pressure, the hydraulic conductivity is increased with increases in the confining pressure owing to the rupture of the particles or samples. A case history is then presented, which uses chemical grouting to control groundwater seepage into a deep coalmine shaft and thus demonstrates the feasibility and durability of the use of chemical grouting as a ground treatment to prevent groundwater inrush from sand aquifers.

Keywords: sand and water inrushes; chemical grouting; high confining pressure; hydraulic conductivity; underground mining; shaft.

化学注浆固砂体渗透性试验研究及其在防治地下水砂突涌中的应用

本文对化学注浆前后粗砂试样的渗透系数进行了试验研究。试验采用的可施加气压的新型试验设备制备化学注浆固砂体,同时可以模拟不同泵压条件下和不同深度的注浆土体。本文还通过静态高压三轴渗透试验系统对固砂体在高围压条件下的渗透性进行了研究。试验结果表明通过化学注浆的砂体试样,其渗透性发生了明显降低;试验结果还表明,在恒定的围压下,化学注浆粗砂试样的渗透系数会随着水力梯度的增加而增加。通常情况下,化学注浆固砂体渗透系数是随着围压增加而降低。然而,在高围压条件下,由于砂土颗粒破裂或试样被剪坏,渗透系数会随着围压的增加而增加。最后结合化学注浆法防治深部矿井井筒地下水突涌的案例,证明了化学注浆在防治含水砂层突涌事故的可行性和可靠性。

关键词:水砂突涌;化学注浆;高围压;渗透系数;地下开采;井筒。


  

7

Image processing for erosion control of open-pit mines

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 203-212出版年: 2016

        Soil erosion is one of the most severe land degradation problems afflicting many parts of the world where topography of the land is relatively steep. Owing to inaccessibility to this steep terrain, such as slopes in open-pit mines and forested mountains, advanced data processing techniques are required to identify and predict high risk erosion zones. Unlike existing methods that require human observations, which can be expensive and error-prone, the proposed approach uses a fully automated algorithm to indicate when an area is at risk of erosion; this is accomplished by processing Landsat and aerial images. In this paper, an image processing algorithm is presented to identify the scene of an image by classifying it in one of six categories: open-pit mine, mountain, forest, degraded forest, cropland, and grassland or orchard. This paper focuses on automatic scene detection using global features with local representations to show the gradient structure of an image. The output of this work counts as a contextual cueing and can be used in erosion detection, and for erosion control in a variety of applications; particularly, predicting erosion risks in open-pit mines. We also discuss the environmental implications of deferred erosion control in open-pit mines.

Keywords: contextual cueing; machine learning; soil erosion; erosion control; image processing.

关于露天煤矿侵蚀治理的图像处理

对于地形陡峭的地区,水土流失是最严重的的土地退化问题之一。由于人工无法到达例如露天矿和植被覆盖的山体的斜坡等较为陡峭的地方,这就需要先进的数据处理技术来识别和预测高风险的水土流失区域。与现有的人工观察的方法不同,这种技术造价高昂并且容易出错,因此,该方法是采用一种完全自动化的算法,通过处理陆地卫星和航空图像来预测某个区域是否处于被侵蚀的危险之中。本文通过一种图像处理算法,可以在露天矿、山地、森林、退化森林、农田、草地或果园等六种类型中识别出与之相符的类型。本文重点介绍了利用全局特征对局部图像进行自动场景监测的技术,用来显示图像的梯度结构。这项工作成果可作为土壤侵蚀的一种预测方法,可以应用在侵蚀监测工作中用来控制各种类型中的侵蚀程度,特别是用来预测露天矿中水土流失的风险。除此之外,我们还讨论了在露天矿中减缓水土流失对环境的影响。

关键词:预测;机器学习;水土流失;侵蚀治理;图像处理。

  


  

8

The simulation of mine solid waste generation in Panzhihua City based on system dynamics

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION : 59: 2-4 特刊: SI : 213-229 出版年: 2016

         In recent years, the scale of steel production in Panzhihua City - an important mining centre for black, non-ferrous metal in China - has rapidly doubled in response to the tremendous demand for industrial development, placing tremendous pressure on the environment. This paper simulates and predicts the discharge, treatment and reutilization of solid waste in the iron and steel industry by constructing a system dynamics model. The results show that the model can be applied effectively. The solid waste volume has a tendency to rapidly increase and the stripping ratio shows a decreasing trend. The reutilized volume of tailings increases substantially over time and the reutilized ratio in the environment scenario is higher than that in the current scenario.

Keywordssolid waste generation; Panzhihua City; system dynamics.

基于系统动力学的攀枝花市矿山固体废物产量的模拟研究

攀枝花市是中国黑色金属和有色金属的重要采矿枢纽,近年来,由于对工业发展的巨大需求,其规模倍增,给环境带来了巨大的压力。本文通过建立一个系统动力学模型,模拟和预测钢铁工业固体废物的排放、处理和再利用。研究结果表明系统动力学模型是可行的。固体废物量有快速增长的趋势,剥采比则有减少的趋势。尾矿再利用量随时间大幅增加,环境型情境下的重率利用率高于当前。

关键词:固体废物产量; 攀枝花市; 系统动力学。 


  

9

CFD modelling of dust dispersion in a room-and-pillar mining area

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 230-249出版年: 2016

        This paper presents dust dispersion characteristics in a room-and-pillar mining face area using computational fluid dynamics (CFD) modelling and tracking of dust particles without sprays operating. CFD use was validated with a published exponential decay behaviour experimental data. Simulations were conducted for two continuous miner cuts; each involving box and slab cuts. Particle size distribution (PSD) of in-mine dust samples collected from continuous miner wet-scrubbers was used for simulations. The dust particles ranged from 0.5-44 mu m. Data analyses were focused on PSD and dust particle tracks in different vertical and horizontal planes downwind of the cutting face. The coarser particles (similar to> 5 mu m) settled quickly under gravity, while the finer particles (similar to< 1 mu m) stayed suspended and travelled long distances. Dust concentration varied from roof to floor with finer particles near the top and coarser particles near the bottom. The results were used as a validation for the concepts underlying the Southern Illinois University Carbondale (SIUC) innovative spray system. Additional improvements were also identified for dust control.

Keywords: CFD modelling; coal dust control; particle size; dust concentration; SIUC innovative spray system.

房柱式矿区煤尘扩散的流体力学模型

本文通过建立计算流体力学模型,在无喷雾条件下追踪尘粒,对房柱式采煤工作面区域的煤尘扩散特性进行了研究。计算流体力学模型的应用验证了已发表的指数衰减特性试验数据。试验数值模拟了两次连续采煤机采掘带,每次模拟中都涉及到了运煤箱和纵切采煤。从连续采煤机中洗涤器中收集到矿井煤尘样本的粒度分布结果进行数值模拟。尘粒的粒径在0.5-44微米之间。数据分析主要集中于粒径分布和不同的垂直和水平面上煤尘粒子的轨道。较粗的颗粒(粒径> 5 微米)在重力作用下迅速沉降,而较细的颗粒(粒径< 1微米)则处于悬浮状态,并扩散了较长的距离。从顶板到底板煤尘的浓度分布不均,在顶板附近存在细小的颗粒,底板附近存在有较粗的颗粒。此项研究结果验证了南伊利诺伊大学所提出的新型喷雾系统概念。此外,还对煤尘防治方面进行了改进。

关键词:计算流体力学模型;矿井煤尘防治;粒径;煤尘浓度;南伊利诺伊大学新型喷雾系统。  


  

10

Safety and environmental implications of coal mining

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 250-268出版年: 2016

        This paper presents an investigation on the global issues associated with coal mining, including frequent accidents, occupational diseases and environmental impacts. These problems are caused by complex geological conditions, lack of technology implementation, human factors, lack of financial investment, and ineffective safety and environmental management. A comparison analysis of mine safety and environmental protection in selected coal producing countries is presented from the perspective of regulations and practices related to coal mining. The results show that comprehensive and stringent regulations, practical policies, and best practices have been developed to enhance coal mining safety and environmental protection in the past decades in coal producing countries. Risk assessment in coal mines is an important part of protecting workers and the environment, which includes three steps: risk identification, risk analysis, and risk evaluation. Some suggestions for controlling and preventing disasters, such as water inrush, coal dust, gas disaster, roof collapse, fire, and subsidence, are proposed for the improvement of mine safety and environmental impacts in coal mines in the future.

Keywordsmine safety; accidents; occupational diseases; environmental impacts; risk assessment; disaster control

煤炭开采的安全和环境影响

本文研究了煤炭开采引起的全球问题,包括频繁的事故,职业病和环境影响,并指出这些问题是由复杂的地质条件,缺乏先进技术,人为因素,财政投入不足以及缺少有效的安全和环境管理五个方面的因素造成的。不同国家煤矿安全和环境保护的法律法规和实践的对比分析表明,在过去的几十年里,煤炭生产国家通过实施全面严格的法律法规,实用性的政策,和最佳的实践加强了煤炭安全开采和环境保护。煤矿的风险评估是保护矿工和环境的重要组成部分,它包括三个步骤:风险识别,风险分析和风险评价。为了进一步改善煤矿安全和环境影响,本文对突水,煤尘,瓦斯灾害,顶板冒落,火灾,和地面沉降的控制与预防提出了建议。

关键词:煤矿安全;事故;职业病;环境影响;风险评估;灾害治理。

  


  

11

Solidification characteristics and mechanisms of cement treated Pb/Zn contaminated soils from a mining site in Hunan Province, China

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 269-283出版年: 2016

          This paper presents a study on the stabilization of mine soils from a mining site contaminated with heavy metals through the use of ordinary Portland cement (OPC). The aim of this study was to explore the effects of binder content (%), and the curing age of contaminated soils on the toxicity and strength properties of the contaminated soils using toxicity characteristic leaching procedure (TCLP), acid-neutralising capacity (ANC) test. Sequential extraction procedure (BCR), unconfined compression test (UCT), X-ray diffraction (XRD) and scanning electron microscopy (SEM) procedures were carried out to analyse the solidification mechanisms. The results showed that as the curing time was increased from 0 d to 28 d, OPC stabilized contaminated soil underwent several changes: 1) leaching of Zn and Pb decreased; 2) ANC (beta) increased; 3) exchangeable Zn and Pb decreased; 4) residual contents increased; 5) strength improved.

Keywords: cement binder; pollution prevention; heavy metal contaminated soil; mining.

水泥处理铅/锌污染土壤的凝固特征和机理——以湖南省某矿区为例

本文通过使用普通硅酸盐水泥(OPC)对被重金属污染的矿区土壤稳定性进行研究。本研究使用毒性特征沥滤方法(TCLP法)和抗酸力(ANC)测试法探究污染土的粘结剂含量、养护龄期对污染土的毒性和强度特性的影响。为分析其固化机理而进行了逐级提取流程(BCR)、无侧限抗压强度试验(UCT)、X射线衍射(XRD)和扫描电子显微镜(SEM)等项试验。结果显示,当养护龄期从0逐渐增加到28天,普通硅酸盐水泥固化污染土发生了一些变化:1)锌和铅元素浸出量减少;2)抗酸力(β)增加;3)交换性的锌和铅含量减少;4)残留量增加;5)强度提升。

关键词:水泥粘结剂;污染防治;重金属污染土壤;煤矿开采。


  

12

Fuzzy comprehensive evaluation of landslide caused by underground mining subsidence and its monitoring

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION: 59: 2-4特刊: SI: 284-302出版年: 2016

       Open-pit coal mines can recycle resources by underground coal mining but it will lead to subsidence of upper slope, and may cause geological environmental disasters such as landslides. A fuzzy comprehensive evaluation model of the slope stability in coal mining subsidence areas is proposed. Based on the model the evaluation of slope stability in the subsidence zone in Antaibao open pit coal mine is carried out. By conducting the qualitative and quantitative analyses simultaneously, the evaluation results are more scientific than the qualitative description only and semi-quantitative analysis. According to the results of stability evaluation division, to ensure the mine safety production in the danger zone, the monitoring network composed of 20 monitoring points successfully implements monitoring and forecasting for stable condition of slopes.

Keywords: mining site subsidence; fuzzy comprehensive evaluation; landslide; stability analysis; remote real-time monitoring.

地下开采沉陷引起的滑坡的模糊综合评价与监测

露天煤矿可以通过地下开采回收资源,但是这样会导致边坡沉降,也可能导致滑坡等地质环境灾害,针对此问题,本文提出了煤矿开采沉陷区边坡稳定性的模糊综合评价模型。此模型在安太堡露天煤矿沉降区边坡稳定性评价得以应用。通过进行定性与定量结合分析,评价结果相对于仅定性和半定量分析更加科学。根据稳定性评价划分的结果,为确保在危险区煤矿的安全生产,由20个监测点构成的监测网络成功实现了边坡稳定状态的监测和预测。

关键词:矿区地表沉陷;模糊综合评价;滑坡;稳定性分析;远程实时监控。