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Stability and permanent displacements analysis of wasteland during earthquakes

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Acta Seismologica Sinica(English Edition) 2001年第2期14卷 216-224页

作者： KE Han Geotechnical Institute of Zhejiang University Hangzhou China

According to the results of experiments on the municipal solid waste (MSW), a series of formula are deduced to calculate the leachate free-faced headline curve. By means of static and dynamic finite element method (FEM), the stability of a wasteland during earthquakes is analyzed. It is demonstrated that the positions of the most dangerous sliding surfaces during earthquakes are fairly stable. Based on the above findings, this paper developed the New-mark method by increasing the precision to reckon the permanent deformation of wastelands during earthquakes. The method presented in the paper is not only of great importance to instruct the anti-seismic design of wasteland, but also valuable to the design of ordinary dams and embankments.

关键词： wasteland stability anti-seismic permanent deformation P315.9

Differences between total amount of heavy metals and their occurrence form contents in the wastelands of a molybdenum mine area

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International Journal of Coal Science & Technology 2023年第2期10卷 210-217页

作者： Ping Shi Jing Huang Zecan Wu Aoshuang Chen Guangxin Zhang College of Jangho Architecture Northeastern University(Shenyang)Liaoning 110169China Ecological Environment Bureau of Benxi Manchu Autonomous County(Benxi) Liaoning 117100China

In a single sample plot,the total amount of heavy metals in the soil could not necessarily reflect the contents of their effective states.This must be considered when attempting to determine the degree of soil heavy-metal pollution in an area.In the present study,the soil around the molybdenum mining area in Huludao,China,was surveyed and sampled to evaluate soil heavy-metal pollution using the Nemerow multifactor pollution index method.The Tessier continuous extraction method was used to analyze the distribution of heavy-metal forms'and their content changes in the soil of this area.Thus,the bioactivity of heavy metals in the soil,the absorption of heavy metals by plants,and the distribution of heavy metals in plants were explored to provide data supporting the use of phytoremediation technology to treat the heavy-metal pollution in the molybdenum mining area and develop ecological restoration strategies for the area's wastelands.The pollution index results indicate that heavy-metal pollution in the soil around the tailings pond is severe,mainly due to Pb and Zn heavy metals.Heavy-metal pollution in the surrounding land is mainly due to Cd and Zn.Content analysis of the heavy-metal forms/states in soils shows that exchangeable forms,which are most effective and toxic to plants,of the following metals are highest in the following areas:Cd,Cu,and Zn in the mountains around the stope;Zn,Mo,and Cu in the cultivated land around the dump;and Cd,Zn,and Mo in the cultivated land around the tailings pond.The pollution index analysis provides a basic overview of soil heavy-metal pollution across the entire mining area.However,content analysis of heavy-metal forms/states better reflects the relationship between the availability of heavy metals in the soil and the effectiveness of plants.Thus,the latter analysis can help ensure that phytoremediation strategies are adequately targeted,science-based,and effective.

关键词： Molybdenum mining wasteland Soil pollution Heavy metal Bioavailability Phytoremediation

Evaluation of soil pollution situation in urban industrial wasteland:A case study

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Ecological Economy 2015年第2期8卷 147-153页

作者： SHI Ping GUO Shuang FU Yan-hua College of Jangho Architecture Northeastern University University of Missouri Texas A&M University

Urban industrial wasteland might have been affected by toxic and hazardous substances emitted by the original production activities. Consequently, pollution survey analysis and environmental risk assessment should have been conducted before redevelopment. In the paper, by surveying soil sample from waste dump, tailing pond and surrounding area in Lead-Zinc Mine, fuzzy mathematics method was adopted to establish Fuzzy Comprehensive Evaluation model as to analyze conditions of soil pollution by heavy metal and soil nutrient. It would provide important scientific basis for pollution control and ecological restoration in the mining area and thus carry out comprehensive ecological restoration in Lead-Zinc Mine. Fuzzy Comprehensive Evaluation results indicated that soil pollution by heavy metal were severe. It could give priority to develop forestry. Most deficient soil nutrient elements were available P and N. Due to the lack of nitrogen and phosphorus, it was necessary to improve the soil before phytoremediation.

关键词： urban industrial wasteland soil pollution by heavy metal soil nutrient Fuzzy Comprehensive Evaluation

Evaluation of the Reclamation Suitability of Industrial and Mining wasteland

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Asian Agricultural Research 2013年第5期5卷 65-68,71页

作者： Gengjie ZHANG Zhongke BAI College of Land Science and Technology China University of Geosciences Key Laboratory of Land Consolidation and Rehabilitation

To evaluate the reclamation suitability of industrial and mining wasteland is the premise of reclamation. The wasteland was firstly categorized according to land use status and damage types. Then the evaluation process of reclamation suitability was introduced, which involves two steps, the first step was to exclude those unsuitable wasteland by the limits conditions, while the second step was to evaluate the suitability degree of those suitable wasteland. From the perspectives of soil fertility, soil pollution, farmland water conservancy and land damage, twelve evaluation factors, including soil depth, gravel content, bulk density, organic material content, pollution index, gradient, flatness, irrigation and drainage condition, source of borrowed earth, distance from the residential settlement, erosion modulus and damage extent, were selected to establish an index system for evaluating the abandoned industrial and mining land, aiming to provide references for the future reclamation of industrial and mining wasteland.

关键词： Industrial and mining wasteland Reclaimed farmland

An Analysis of the wasteland Imagery in Ferryman from the Perspective of Symbolism

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海外英语 2018年第21期 185-187页

作者：郑晓婷郑维同济大学浙江学院英国Cardiff University

With the wasteland standing out as the setting stage of the story, the study attempts to analyze the symbolic meanings ofthis imagery in Claire Mcfall's novel Ferryman. By linking the wasteland imagery to that in T. S. Elliot's masterpiece The Waste Land, and through text analysis, the study analyzes the interactive relationship between the characters and the wasteland, and re-veals that the wasteland imagery in the novel is indeed a reflection of the ruthless social reality and the oppressive social system.

关键词： ferryman symbolism wasteland

Restoration Planning of Mining wastelands:A Case Study

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Journal of Botanical Research 2023年第1期5卷 12-21页

作者： Poonam Jaiswal Department of Botany Janki Devi Bajaj Government Girls CollegeUniversity of KotaKota324001India

Mining plays an important role in the economic development of a country.But the consequences of the mining can be seen in the form of degradation of soil,water,and native vegetation,which ultimately results in the disturbance of the local ecosystem.The ecological restoration of such disturbed ecosystems involves the reclamation of soil,conservation of water,erosion control,and re-vegetation of native vegetation.This can be achieved by improving the physical properties of soil,enhancing the nutrient status of soil,selecting appropriate plant species for re-vegetation,providing provision of irrigation facilities for re-vegetated mining wasteland,and so on.The present study was conducted in the Kota district of Rajasthan,where stone mining is one of the major industrial activities.The paper provides a scientific assessment of the existing vegetation of limestone mining wastelands through field surveys and physicochemical analysis of soil and water.Loss of natural vegetation and excessive stoniness of the substratum were major hurdles that restrict the easy recovery of vegetation on mining wastelands but there is almost no negative impact on the water quality.The study summarizes the holistic technology including the vegetational approach to the restoration of mining wastelands and puts forward some existing problems and their solutions.

关键词： Mining wasteland Reclamation Vegetation

Images in Eliot's The Love Song of J. Alfred Prufrock

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海外英语 2015年第6期 183-184页

作者：全春艳普洱学院外国语学院

The Love Song of J. Alfred Prufrock is T.S. Eliot's masterpiece, which marked the beginning of Eliot's career as an influential poet. Prufrock is the image of an ineffectual, sorrowful and depressed western man in twentieth century. Eliot used a lot of images to reveal the city as a wasteland, the tedious life of the western modern people, and the bewildered and split personality of western people. Eliot succeeds in reflecting inner world and spiritual state of modern people with the long, fragmented images,which influence future writers.

关键词： The Love Song images indecision inability wasteland

攀枝花铸钢厂工业废弃地景观利用与改造研究(英文)

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Journal of Landscape Research 2012年第6期4卷 7-10页

作者：姜龙攀枝花学院艺术学院四川攀枝花617000

Renovation design of wasteland on the original Quarter A of Panzhihua Nongnongping Steelcasting Factory was taken for example in this study, natural conditions and biological landscapes in the study area were investigated. Principles and theories of the renovation design were introduced, it was proposed that protection and landscape renovation of industrial heritage had to be insisted to make regular and unique overall spatial layouts. On this basis, design approaches for the wasteland landscape renovation of the steel-casting factory were proposed as "maintaining original images, realizing the functional substitution; optimizing spatial structure; updating seriously-damaged industrial facilities with insignificant functionality; improving and recovering landscape soil; recovering and reconstructing vegetation".

关键词： Steel-casting factory wasteland Landscape renovation

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红池坝专题通过专家现场验收

资源科学 1995年第6期 19-19页

红池坝专题通过专家现场验收由我会承担的国家“八五”科技攻关专题“北亚热带中高山地区草地育牧业生产优化模式研究”，在各级领导和地方政府的大力支持下，经过专题组全体参试人员的共同努力，已圆满完成试验任务，于今年６月中旬通... 详细信息

红池坝专题通过专家现场验收由我会承担的国家“八五”科技攻关专题“北亚热带中高山地区草地育牧业生产优化模式研究”，在各级领导和地方政府的大力支持下，经过专题组全体参试人员的共同努力，已圆满完成试验任务，于今年６月中旬通过国家科委组织的专家现场验收。该专...

关键词： Barren hills wasteland Exploitation and management Distribution Hubei Province