水力结构新型纤维混凝土耗能器设计的边界条件研究  

Study on Boundary Conditions for Design of New Fiber Reinforced Concrete Energy Dissipators for Hydraulic Structures

作　　者：李铭杰 LI Ming-jie(Jiangsu Huaishu New River Management Office,Huai'an 223001,Jiangsu,China)

机构地区：[1]江苏省淮沭新河管理处,江苏淮安223001

出　　处：《水利科技与经济》2023年第1期43-47,共5页Water Conservancy Science and Technology and Economy

摘　　要：对大坝溢洪道溜槽新型消能工设计的设定参数试验进行了介绍。在雨季,大量河水流入水库会导致水库水位上升,通过建造溢洪道结构,达到安全泄洪的目的。溢洪道设计中的两个关键点是输水和消能。大坝溢洪道上的能量耗散可以通过一系列耗能设计来实现。溢洪道的一种类型是砌块坡道,在实际工程中砌块坡道应用广泛,该类结构可以保证水工结构发挥作用的同时,减少对环境的影响。该方法的主要特点之一是比其他传统结构耗散更大的能量。目前,在提升能量耗散效率方面的研究发现,在砌块坡道设计中使用纤维混凝土可显著提高耗能率。基于砌块坡道中新型纤维混凝土实测数据,研究消能工设计的边界条件。The parameter setting test for the design of a new type of energy dissipator for the chute of the spillway of the dam is introduced. In rainy season, a large amount of river water flowing into the reservoir will cause the water level of the reservoir to rise. The purpose of safe flood discharge can be achieved by building a spillway structure. Two key points in spillway design are water conveyance and energy dissipation. The energy dissipation on the dam spillway can be realized through a series of energy dissipation designs. One type of spillway is block ramp, which is widely used in practice. This kind of structure can ensure the hydraulic structure to play its role and reduce the impact on the environment. One of the main characteristics of this method is that it dissipates more energy than other traditional structures. At present, many scholars have done a lot of research on improving the energy dissipation efficiency, and found that the use of fiber concrete in the design of block ramp can significantly improve the energy dissipation rate. Based on the measured data of new fiber reinforced concrete in block ramp, the boundary conditions of energy dissipator design are studied.

关 键 词：水力结构 新型纤维 混凝土 耗能器 边界条件 

分 类 号：TV653[水利工程—水利水电工程]