DISASTER ANALYSIS AND COUNTERMEASURES OF LAND SUBSIDENCE CAUSED BY COAL CUTTING IN CHINA

In recent years, many coal-producing countries have paid great attention to the land subsidence causedby coal cutting. In China, because of the dense population in coalfield areas, the land subsidence hazard is more seri-ous. After a brief analysis on the mechanism of land subsidence, this paper gives a comprehensive and systematical ac-count on all kinds of hazards caused by the land subsidence in China. The study shows that land subsidence has endan-gered land, buildings, traffic and communication lines, dykes and dams. It also causes damage to ecological and socialenvironment. In order to lessen the hazard of land subsidence, preventive measures should be taken to reduce the col-lapse amount, such as extraction with stowing, banded mining system, succession and coordination mining system, orhigh-pressure mudflow between rock strata. Measures of reinforcing or moving certain buildings should also be taken toreduce the destructive degree. In order to harness the subsidence land and bring them under control for farming, mea-sures should be taken such as filling with spoil or fine breeze, excavating the deeper and covering the shallower land.

作 者： SHI Tong-guang JIANG Lu-guang LI Yue YANG Yong-liang   作者單位： SHI Tong-guang(Department of Urban Geographic Information System, Shandong Institute of Architecture and Engineering, Jinan 250014.P. R. China;Information Engineering University of the Chinese People's Liberation Army. Zhengzhou 450052, P. R. China)

JIANG Lu-guang(College of Population, Resources & Environment, Shandong Normal University, Jinan 250014, P. R. China)

LI Yue,YANG Yong-liang(Department of Environmental Sciences, Qingdao University, Qingdao 266071, P. R. China) 

刊 名： 中國地理科學(英文版)  SCI 英文刊名： CHINESE GEOGRAPHICAL SCIENCE  年，卷(期)： 2003 13(2)  分類號： X43  關鍵詞： coal cutting   land subsidence   disaster analysis   countermeasures