Experimental study on the settlement behavior of soil–rock mixtures under reservoir water level rise and fall

IF 3.7 2区工程技术 Q3 ENERGY & FUELS

Geomechanics for Energy and the Environment Pub Date : 2025-06-18 DOI:10.1016/j.gete.2025.100705

Siwei Wang , Guinan Wang , Shuyi Li

{"title":"Experimental study on the settlement behavior of soil–rock mixtures under reservoir water level rise and fall","authors":"Siwei Wang , Guinan Wang , Shuyi Li","doi":"10.1016/j.gete.2025.100705","DOIUrl":null,"url":null,"abstract":"<div><div>The terrain and landforms in the reservoir area of Baihetan Hydropower Station are complex, with many high mountains and hills. There are many resettlement sites with large scales, and a large amount of soil–rock mixtures are used. The newly filled soil is affected by the periodic rise and fall of the reservoir water level. Therefore, it is of great significance to study the settlement and deformation of high-fill soil–rock mixtures under the action of water level rise and fall. To this end, a device was developed to simulate the settlement of soil–rock mixtures under the action of water level rise and fall in the reservoir area. Large scale physical model experiments were conducted, with model dimensions of 2.8 m × 2.0 m × 2.7 m in length, width, and height. Pore water pressure, soil pressure, and settlement deformation sensors were buried at five different depths of the soil–rock mixtures, and observation windows were set up. The influence of water level rise and fall on the settlement and deformation law of soil and rock filling bodies was studied, and the settlement mechanism was preliminarily revealed (Large pores are filled and compressed due to permeability, while small pores are reduced due to wet dry cycles.).</div></div>","PeriodicalId":56008,"journal":{"name":"Geomechanics for Energy and the Environment","volume":"43 ","pages":"Article 100705"},"PeriodicalIF":3.7000,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geomechanics for Energy and the Environment","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S235238082500070X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

The terrain and landforms in the reservoir area of Baihetan Hydropower Station are complex, with many high mountains and hills. There are many resettlement sites with large scales, and a large amount of soil–rock mixtures are used. The newly filled soil is affected by the periodic rise and fall of the reservoir water level. Therefore, it is of great significance to study the settlement and deformation of high-fill soil–rock mixtures under the action of water level rise and fall. To this end, a device was developed to simulate the settlement of soil–rock mixtures under the action of water level rise and fall in the reservoir area. Large scale physical model experiments were conducted, with model dimensions of 2.8 m × 2.0 m × 2.7 m in length, width, and height. Pore water pressure, soil pressure, and settlement deformation sensors were buried at five different depths of the soil–rock mixtures, and observation windows were set up. The influence of water level rise and fall on the settlement and deformation law of soil and rock filling bodies was studied, and the settlement mechanism was preliminarily revealed (Large pores are filled and compressed due to permeability, while small pores are reduced due to wet dry cycles.).

查看原文本刊更多论文

水库水位升降作用下土石混合体沉降特性试验研究

白鹤滩水电站库区地形地貌复杂，高山丘陵多。安置点多，规模大，土石混合物用量大。新填土受水库水位周期性上升和下降的影响。因此，研究高填方土石混合体在水位升降作用下的沉降变形具有重要意义。为此，研制了模拟库区水位升降作用下土石混合体沉降的装置。进行了大比例尺物理模型实验，模型尺寸为2.8 m × 2.0 m × 2.7 m，长宽高分别为：孔隙水压力、土压力和沉降变形传感器分别埋置在5个不同深度的土石混合体中，并设置观测窗口。研究了水位升降对土石充填体沉降变形规律的影响，初步揭示了其沉降机理（大孔隙因渗透作用而被填充压缩，小孔隙因干湿循环作用而缩小）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Geomechanics for Energy and the Environment Earth and Planetary Sciences-Geotechnical Engineering and Engineering Geology

CiteScore

5.90

自引率

11.80%

发文量

期刊介绍： The aim of the Journal is to publish research results of the highest quality and of lasting importance on the subject of geomechanics, with the focus on applications to geological energy production and storage, and the interaction of soils and rocks with the natural and engineered environment. Special attention is given to concepts and developments of new energy geotechnologies that comprise intrinsic mechanisms protecting the environment against a potential engineering induced damage, hence warranting sustainable usage of energy resources. The scope of the journal is broad, including fundamental concepts in geomechanics and mechanics of porous media, the experiments and analysis of novel phenomena and applications. Of special interest are issues resulting from coupling of particular physics, chemistry and biology of external forcings, as well as of pore fluid/gas and minerals to the solid mechanics of the medium skeleton and pore fluid mechanics. The multi-scale and inter-scale interactions between the phenomena and the behavior representations are also of particular interest. Contributions to general theoretical approach to these issues, but of potential reference to geomechanics in its context of energy and the environment are also most welcome.