新疆克孜河阿瓦提引水枢纽工程水工模型试验研究  

Experiment on hydraulic model of KZAWT water division project in Xinjiang

作　　者：颜磊[1] 李琳[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052

出　　处：《水资源与水工程学报》2016年第5期134-140,共7页Journal of Water Resources and Water Engineering

基　　金：新疆水利水电工程重点学科基金项目(XJZDXK-2015-10-05)

摘　　要：对拟除险加固的新疆克孜河阿瓦提(KZAWT)引水枢纽在河道发生不同频率洪水工况下开展模型试验研究。试验结果表明:KZAWT枢纽分流比远小于原设计方案中提出的枢纽控制大河来水量的70%,枢纽最大分流比约为40%。在各级流量下,引水渠道满足引入设计流量要求。泄洪闸和溢流侧堰泄流量均大于设计泄流量,满足泄流要求。溃坝在河道实际来流量小于校核洪水流量3 148 m3/s时溃决。输沙试验结果表明:通过合理调度泄洪冲沙闸,可有效防止泥沙进入引水渠。研究结果可为KZAWT枢纽的除险加固方案设计提供依据和指导,为分洪建筑物多、泄流情况复杂的同类工程除险加固方案设计提供参考。This paper carried out the model experiment for Xinjiang KZAWT water division project which was planned to reinforce and consolidate under working conditions of various frequency of flood in the watercourse. The result shows that the greatest split ratio of KZAWT pivot is about 40% and far smaller than70% proposed by origintal design program. Under all levels of flow,the headrace channel meets the need of design flow. The discharging capacity of floodgate and spillover side weir is greater than the requirement of design and satisfies the requirement of discharge. The dam break will take place when the practical inflow is less than the checking flood flow of 3 148 m3/ s. The result of sediment transport experiment shows that it is effective to avoid the sediment going into the division canal through appropriately adjusting the flood-discharging and sand-sluicing gate. The research results can provide evidence and guidance for the reinforcement design of KZAWT pivot and give reference to the reinforcement design of similar projects which have more flood-division buildings and face complicated discharging conditions.

关 键 词：分流比 冲淤变化 引水防沙 引水枢纽 水工模型试验 

分 类 号：TV131.61[水利工程—水力学及河流动力学]