模拟管袋坝接缝管路的糙率率定试验方法  

Experimental Method for Roughness Calibration of Simulating Seams Pipeline Between Tubes of Geotube Dam

作　　者：李少鹏[1] 束一鸣[1] 满晓磊 郝雪航 毛文龙 顾克 刘云锋[1] Li Shaopeng1, Shu Yiming1, Man Xiaolei2, Hao Xuehang3 ,Mao Wenlong, Gu Ke4 ,Liu Yunfeng(1. College of Water Conservancy b- Hydropower Engineering, Hohai Univ., Nanjing 210098, China; 2.Chuzhou Univ. , Chuzhou 239000, China; 3. China Water Resources Beifang Investigation Design Re- search Co. Ltd, Tianjin 300222, China;4. College of Civil Transportion Engineering, Hohai Univ., Nan- jing 210098, Chin)

机构地区：[1]河海大学水利水电学院,南京210098 [2]滁州学院,安徽滁州239000 [3]中水北方勘测设计研究有限责任公司,天津300222 [4]河海大学土木与交通学院,南京210098

出　　处：《三峡大学学报（自然科学版）》2018年第2期19-23,共5页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金项目(51179065)

摘　　要：为了解决模拟管袋坝袋间接缝管路的糙率边界条件模拟和观察试验的矛盾,自行设计一套糙率率定的试验装置,主要包括供水设备、模拟管路和数据采集设备.针对该试验装置提出了相应的试验原理和试验方法,并验证该试验装置及试验方法是可行的.在此基础上进行了纱网糙率率定试验,选出适当糙率的纱网完成对管路边界条件的模拟,同时满足观察管路中砂体的运移状态的需要.To solve the contradiction between roughness boundary condition simulation of the seams pipeline between tubes of geotube dam and experimental observation, a set of experimental study apparatus is de- signed. The apparatus mainly consists of water supply equipment, simulated pipeline and information collec- ting device. The related experimental principle and method are proposed; and then the experimental equip- ment and method＇s validity is also proved. A series of model experiment on the roughness coefficient of gauze are carried out; and the gauze having the proper roughness is selected out to simulate the boundary condition of the seams pipeline, simultaneously observing the movement status of the sand body in the pipeline is real- ized.

关 键 词：接缝管路 曼宁糙率 试验装置 率定方法 综合糙率 

分 类 号：TV36[水利工程—水工结构工程]