摘要
为了缓解长江中下游干流河段航道整治工程建设需大量开山采石影响料源区生态环境的问题,针对目前航道整治工程建设需要大量减少块石材料的技术要求,提出了桩网砂枕坝航道整治工程新技术的材料结构型式和施工工艺。详细分析了桩网砂枕坝水毁破坏机理,提出了避免水毁破坏的对策;通过对桩网砂枕坝工程的耐久性、整体性、适应性、取材容易等特性的分析,说明了桩网砂枕坝的技术特性满足航道整治工程的技术要求;通过同类型工程等工效方案的建筑综合成本的比较分析,说明了桩网砂枕坝方案具有经济实惠的特点。从分析成果来看,桩网砂枕坝航道整治工程新技术具有可行性,其推广应用具有一定的生态、经济和社会效益。
During the construction of channel regulation project in the middle and lower Yangtze river,plentiful stone materials are quarried through blasting,which leads to ecological destruction of stone materials source area. In view of the situation and the demand of reducing stone materials during construction of channel regulation projects,we present a new technique for channel regulation project,namely pile net-sand pillow dam（ PNSPD）.We propose the material structure and construction process of the new technique. On the basis of analyzing waterlogging damage mechanism of PNSPD,we put forward some countermeasures. Based on the analysis of several features,including durability,integrity,adaptability and material availability,we conclude that technical characteristics of PNSPD can meet the requirements of channel regulation project. Furthermore,as for architecture comprehensive cost for the same type and equal efficiency,PNSPD is an economical scheme in comparison with other schemes. Finally,the new technique of PNSPD is feasible for channel regulation project,with ecological,economic and social advantages for further application.
出处
《长江科学院院报》
CSCD
北大核心
2016年第7期150-154,共5页
Journal of Changjiang River Scientific Research Institute
关键词
桩网砂枕坝
航道整治
材料结构
施工工艺
技术经济
pile net-sand pillow dam
channel regulation
material structure
construction technique
technical economy
