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Environmental Impact Analysis & Prevention and Harness Methods of Long Railway Tunnel Muck

 Li Jia Department of Water Supply and Wastewater Engineering & Environment Engineering, The First Survey and Design Institute of the Railway Ministry (730000)  
Based on concrete practice and collecting of materials relative to it,thisarticle systematically illustrates the ecological problems caused by land occupancy of the long railway tunnel muck,such as agricultural acreage reduction,soil and water loss,mud and stone flow.The author also puts forward corresponding engineering protection methods,such as mortar rubble masonry,loose masonry,stone paving,stone piece held wire coop and type plastic geogrids,environment protection methods,such as garden making by earth covering,biological harness are also recommended to protect environment and to prevent soil and water loss.At the same time,the way in which the tunnel muck are exploited and comprehensively utilized as second resource is introduced to turn waste into treasure,harm into benefit,and to obtain integrated benefit of environment,society and economy.
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