水利水电技术2018，Vol.49Issue(5)：44-49,6.DOI:10.13928/j.cnki.wrahe.2018.05.007
胶凝砂砾石坝在中小型水利工程中的最新应用与实践
Latest practice and application of cemented sand and gravel dam tomid-smallscale water conservancy project
摘要
Abstract
As the risk-resistance capacities of earth-rockfill embankment and dam are relatively poor,an economical and environment-friendly substitutive dam type with high safety is necessary to be developed.The projects of Shunjiang Weir and Maomaohe Mountain Pool are two projects within the few permanent projects built with cemented sand and gravel in China.For the applications and practices of both the projects,the stability and stress analyses are made with finite element method and material mechanics method,in which the material mixture ratio design and construction technology and process control are carried out through the thickest and thinnest envelope lines of the graded sand-gravel,the relevant digitalized quality monitoring and control platform is established based on the Ultra Wideband (UWB) network technology,while comprehensive investment economic comparison is made as well.The result shows that comparing the new type of dam with the conventional one,the stress on the cemented sand and gravel trapezoidal cross-section is uniform and the shear-resistance safety factor under an abnormal working condition can reach over 5 with the compressive strength of 28 d being larger than 6 MPa,while the construction speed and quality are relatively easy to be achieved and the comprehensive investment can be saved by about 10％ than that of concrete dam.Through obtaining raw materials locally and waste recycling,the new type of dam has a certain advantage in the aspects of eco-environment protection,economic feasibility,convenient construction,etc.关键词
胶凝砂砾石/配合比/施工/质量控制与评定Key words
cemented sand and gravel/mixture ratio/construction/quality control and evaluation分类
建筑与水利引用本文复制引用
刘中伟,贾金生,冯炜,王月..胶凝砂砾石坝在中小型水利工程中的最新应用与实践[J].水利水电技术,2018,49(5):44-49,6.基金项目
国家科技支撑计划(2014BAB03B04) （2014BAB03B04）
中国水利水电科学研究院基本科研项目(SM0145B54201600000) （SM0145B54201600000）
先进实用技术示范(126214000000151022) （126214000000151022）
流域水循环模拟与调控国家重点实验室科研项目(SKL2018CG05) （SKL2018CG05）
