摘要
Abstract
The engineering residue backfill and consumption in the tidal flat enclosed area should meet the requirements of relevant planning and soil environmental protection,and pass the examination and approval of relevant departments.In view of the characteristics of the tidal flat area,such as large area,low terrain,poor foundation bearing capacity,and good soil and water environment,engineering and technical personnel need to study and solve technical difficulties such as the connection between plane layout and subsequent utilization of the land and construction technology,safe passage of heavy duty vehicles,backfill leveling control,and soil pollution risk control,so as to meet the requirements of large-scale,high-intensity,safe and environmental protection construction operations on soft soil foundation..Based on the analysis of the water system and land planning of N1 reservoir area of east tidal flat in Nanhui,Shanghai,combined with the soft base characteristics,engineering residue physical characteristics,landfill leveling standards and residue environmental control indicators,the corresponding technical ideas and solutions are put forward in this paper.After nearly 6 years of the engineering residue backfill in the 22,000-mu newly reclaimed area,the average annual consumption of engineering residue has reached 10 million tons.The water and soil environmental quality in the engineering residue backfill area meets the requirements of environmental protection control,and the social and economic benefits are remarkable.This paper can provide reference for similar projects of large scale of high strength safe consumption of engineering residue on soft soil foundation.关键词
工程渣土/新圈围库区/平面布置/运输道路/堆填工艺/土壤环境Key words
Engineering residue/newly reclaimed area/plane layout/road for transportation/filling process/soil environment分类
资源环境
