flyash

The paper introduced the construction technology of liquid flyash pouring retailing backwall in order to assure refill quality of retailing backwall,protect retailing backwall depression or jumping.

介绍了为保证回填质量,防止沉陷或跳车,在地形受限制地方,采用液态粉煤灰灌注,对这项方法、步骤和注意事项进行了详细阐述。