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本世纪末我国燃煤电厂年排灰渣量将达到1.9亿t,如何贮放和利用大量的灰渣是一个涉及许多学科的复杂问题。本文力求综述在灰渣贮放与利用方面目前的发展水平与岩土工程问题: 1.灰渣的湿法与干法贮放方式及其优缺点; 2.挡灰坝的不同型式及其特点; 3.灰渣沉积层的不均匀性、各向异性及灰渣的抗管涌能力; 4.挡灰坝的渗流分析、静力稳定与动力稳定分析; 5.贮灰场的环境保护; 6.灰渣在建筑材料、结构回填与道路工程等方面的应用。
At the end of this century, the ash discharge of coal-fired power plants in our country will reach 190 million tons a year. How to store and utilize a large amount of ash is a complicated issue involving many disciplines. This paper seeks to summarize the current level of development and geotechnical issues in ash storage and utilization: 1. Wet and dry storage of ash and its advantages and disadvantages; 2. Different types of dam and its characteristics ; 3. Inhomogeneity and anisotropy of ash sediment layer and anti-tube surge capacity of ash slag; 4. Seepage analysis, static stability and dynamic stability analysis of ash dam; 5. Environmental protection of ash storage yard; 6 Application of ash in building materials, structural backfill and road engineering.