摘要
水库枢纽重力坝工程施工导流建筑物施工技术分析是重力坝水库枢纽工程施工规划组织的中心内容,构成水库枢纽工程施工合规达标的重要保证条件,对重力坝水库枢纽工程施工质量管理具有重要的工程意义。为此,结合大埔县韩江高陂重力坝水库枢纽工程施工导流建筑物施工技术分析实践案例展开研究。结果表明,了解工程概况,首先从施工程序及时段和导流时段及流量等方面进行重力坝水库枢纽工程施工导流方案分析;同时围绕导流建筑物布置及型式(主要包括一期右岸扩建及河床防护措施、围堰型式、围堰基础防渗措施、纵向围堰基础处理、围堰的防冲刷措施和二期左岸河床防护措施等方面)、导流工程施工(主要包括右岸河床扩挖工程施工、导流河床防护工程施工、围堰施工及围堰拆除等方面)、截流(主要包括截流设计标准、截流方式的选择及计算成果和截流施工等几个方面)等着重实施重力坝水库枢纽工程施工导流建筑物施工技术分析。可为类似水库枢纽重力坝工程施工导流建筑物施工技术分析提供借鉴参考。
The analysis of the construction diversion structures in the construction of the gravity dam at the reservoir hub is the central content of the construction planning and organization of the reservoir hub project.It constitutes an important guarantee for the compliance of the construction of the reservoir hub project and has important engineering significance for the construction quality management of gravity dam reservoir project.Therefore,a practical study is conducted on the construction technology analysis of diversion structures for the construction of the Hanjiang Gaopi Gravity Dam Reservoir Hub Project in Dapu County.The results show that,understanding the project overview,first of all,an analysis of the construction diversion plan for the gravity dam at the reservoir hub is carried out,focusing on construction procedures,timing,diversion periods,and flow rates.At the same time,the analysis of construction technology for diversion structures in the construction of gravity dam reservoir hub projects is emphasized around the diversion building layout and type(mainly including the right bank expansion and riverbed protection measures,cofferdam type,cofferdam foundation seepage prevention measures,longitudinal cofferdam foundation treatment,cofferdam erosion protection measures and protection measures for the left bank riverbed in the second phase,etc.),diversion engineering construction(mainly including the right bank riverbed expansion excavation construction,diversion riverbed protection engineering construction,cofferdam construction and cofferdam demolition,etc.),closure(mainly including aspects of closure design standard,closure way of selection,calculation results and closure construction).It can provide reference for the construction technology analysis of diversion building in gravity dam project of similar reservoir hub.
作者
王雷
WANG Lei(Guangdong No.2 Hydropower Bureau CO.LTD.,Guangzhou 511340,China)
出处
《河南水利与南水北调》
2023年第12期60-62,共3页
Henan Water Resources & South-to-North Water Diversion
关键词
水库
重力坝施工
导流建筑物
施工技术
分析
reservoir
construction of gravity dam
diversion building
construction technology
analysis
