{"title":"Justification of cross direction profile of pipe-culvert of closed mine-type spillway","authors":"T. Lyapota","doi":"10.52321/igh.37.1.35","DOIUrl":null,"url":null,"abstract":"The main purpose of the study is to develop models for the strength reliability of closed spillways at earth-fill dams. The object of the research is closed mine-type spillway structures. The strength reliability model of a closed spillway structure includes a material model, a shape model, a model of actual load, and a fracture model. The material model in most cases is reinforced concrete. The shape model is very important, especially for precast culverts of glory hole spillways, because giving it a certain shape can significantly reduce the value of stresses acting in weak sections. As a result of the stress reduction, there is a decrease in material requirements, primarily for metals, leading to reduced energy and economic costs. This also makes it possible to increase the reliability and durability of such structures, increase their operational safety, and adapt them to various operating conditions. The shape model for the culvert is justified. The load model determines the behavior of the structure during construction and operation. This article suggests a justification for the methodology for calculating the strength of a precast culvert of segment blocks. The methodology allows to perform strength analysis of culverts of closed spillways with a cross-section outline similar to a membrane. The state of reinforced concrete load-carrying units under various combinations of loads has been studied. The limits of stresses and displacements, the excess of which can lead to destruction in the load-carrying units, are determined.","PeriodicalId":20937,"journal":{"name":"Quarterly Journal of Engineering Geology and Hydrogeology","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Quarterly Journal of Engineering Geology and Hydrogeology","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.52321/igh.37.1.35","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The main purpose of the study is to develop models for the strength reliability of closed spillways at earth-fill dams. The object of the research is closed mine-type spillway structures. The strength reliability model of a closed spillway structure includes a material model, a shape model, a model of actual load, and a fracture model. The material model in most cases is reinforced concrete. The shape model is very important, especially for precast culverts of glory hole spillways, because giving it a certain shape can significantly reduce the value of stresses acting in weak sections. As a result of the stress reduction, there is a decrease in material requirements, primarily for metals, leading to reduced energy and economic costs. This also makes it possible to increase the reliability and durability of such structures, increase their operational safety, and adapt them to various operating conditions. The shape model for the culvert is justified. The load model determines the behavior of the structure during construction and operation. This article suggests a justification for the methodology for calculating the strength of a precast culvert of segment blocks. The methodology allows to perform strength analysis of culverts of closed spillways with a cross-section outline similar to a membrane. The state of reinforced concrete load-carrying units under various combinations of loads has been studied. The limits of stresses and displacements, the excess of which can lead to destruction in the load-carrying units, are determined.
期刊介绍:
Quarterly Journal of Engineering Geology and Hydrogeology is owned by the Geological Society of London and published by the Geological Society Publishing House.
Quarterly Journal of Engineering Geology & Hydrogeology (QJEGH) is an established peer reviewed international journal featuring papers on geology as applied to civil engineering mining practice and water resources. Papers are invited from, and about, all areas of the world on engineering geology and hydrogeology topics. This includes but is not limited to: applied geophysics, engineering geomorphology, environmental geology, hydrogeology, groundwater quality, ground source heat, contaminated land, waste management, land use planning, geotechnics, rock mechanics, geomaterials and geological hazards.
The journal publishes the prestigious Glossop and Ineson lectures, research papers, case studies, review articles, technical notes, photographic features, thematic sets, discussion papers, editorial opinion and book reviews.