摘要
长江航道整治工程水下抛石主要有护坡、护脚、护底、筑坝等几种用途,属于典型的隐蔽工程,主要作用是加强岸坡及河床的治理与防护,防止岸坡遭水流冲刷引发的崩岸、岸坡及河床水土流失等,增强河床的抗冲刷能力,稳定河势与河床结构,以及通过抛石筑坝改善水道的水流条件来达到优化主航道通航条件等。以长江下游黑沙洲水道航道整治工程为例,探讨长江航道整治工程水下抛石施工工艺,并对块石材质选择、级配控制、抛投工序、收方计量、质量检测等质量控制环节进行介绍,确保工程质量。
The Yangtze River waterway regulation of underwater riprap, which belongs to typical concealed work, has several purposes, such as slope protection, toe protection, bottom protection, and dam construction. The main role is to strengthen the governance and protection of the bank slope and riverbed, prevent the bank collapse, bank slope and riverbed soil erosion caused by water erosion, enhance the anti-erosion ability of the river bed, stabilize the structure of river regime and riverbed, and improve the flow of the watercourse through the riprap dam conditions, so as to optimize the main channel of navigation conditions. Taking the Heishazhou sandbar waterway renovation project on the lower reach of the Yangtze River as an example, this paper probes into the underwater riprap construction technology of the Yangtze River waterway regulation project, and gives a description of the quality control links such as the stone material＇s selection, gradation control, dumping process, debit measurement, and quality inspection.
出处
《水运工程》
北大核心
2012年第10期162-168,共7页
Port & Waterway Engineering
关键词
航道整治
水下抛石
施工工艺
质量控制
waterway regulation
underwater riprap
construction technology
quality control
