水力发电学报2023，Vol.42Issue(12)：119-131,13.DOI:10.11660/slfdxb.20231212
基于多元优化的百米级胶凝砂砾石坝设计方法
Design method of 100-meter cemented sand and gravel dams based on multivariate optimization
摘要
Abstract
With the improvement of the cemented sand and gravel(CSG)dam construction technology,demands for the construction of 100-meter CSG dams are increasing;An urgent need is to study their different profile forms and cementation contents.This paper uses the finite element method to formulate a regression equation for the prediction model of a CSG dam response surface.Using this equation as the objective function,the artificial bee colony algorithm is applied to optimize the CSG dam profile form and the gelling content,and a series of optimal profile solution sets are obtained.Finally,a set of dam models so optimized and a real dam project is selected to test experimentally for comparison and validation.The results show that in the loading process,the damage modes of the two groups of dam models are different.The real project model cracks at the contact surface of the dam body and foundation,gradually growing into a through crack,and its dam heel suffers shear crack damage.The optimized model suffers slip instability damage but no obvious structural damage to the dam body is observed,indicating that its structural strength is enhanced significantly.In comparison with real projects under normal working conditions,the optimized model reduces horizontal displacement by 36.9%and vertical displacement by 25.5%,and increases the overload safety factor by 9.1%,respectively.The results lay a basis for the profile forms of CSG dams and would help simplify the design method of 100-meter CSG dams.关键词
响应面法/人工蜂群算法/胶凝砂砾石坝/模型试验/剖面优化Key words
response surface method/artificial bee colony algorithm/cemented sand and gravel dam/model test/profile optimization分类
水利科学引用本文复制引用
丁泽霖,徐良杰,王肖楠..基于多元优化的百米级胶凝砂砾石坝设计方法[J].水力发电学报,2023,42(12):119-131,13.基金项目
国家自然科学基金青年基金(51709114) （51709114）
"十三五"国家重点研发计划项目(2018YFC0406803) （2018YFC0406803）
