粉砂岩制砂取代河砂对砼强度的影响研究及意义——浏阳高坪沿甸村坳上组滑坡地质灾害治理工程实践  

Research and Significance of Replacing River Sand with Silt Sand on Concrete Strength:The Engineering Practice of Landslide Geological Hazard Treatment in the Aoshang Group of Yandian Village,Gaoping,Liuyang

作　　者：楼鲜荭 孔存书 杨世勇 刘和鑫 LOU Xian-hong;KONG Cun-shu;YANG Shi-yong;LIU He-xin(Hunan Nuclear Geology 301 Brigade,Changsha 410114,China;Nuclear Industry Changsha South-Centre Construction Engineering Testing Co.,Ltd.,Changsha 410199,China)

机构地区：[1]湖南省核工业地质局三0一大队,长沙410114 [2]核工业长沙中南建设工程检测有限公司,长沙410199

出　　处：《价值工程》2020年第27期126-128,共3页Value Engineering

摘　　要：由于河砂禁采,被山砂取代。近年来,湖南对地质灾害防治工程投入大,抗滑桩是主要措施之一。因灾害点比较偏僻,混凝土多采用现场搅拌的方式,取代河砂的是山砂。浏阳高坪滑坡治理中抗滑桩垮孔事故,是对粉砂制砂取代河砂对砼抗压强度的影响进行研究的原因。实验室将一组单一变量的标准试块进行3天、7天、28天的抗压强度比对测试,从而得出粉砂制砂不可取代河砂的结论,从而给湖南治理工程抗滑桩材料的选用起指导和警示作用。Because river sand is banned from mining,it is replaced by mountain sand.In recent years,Hunan Province has invested a lot in geological disaster prevention project,and anti-slide pile is one of the main measures.Because of the remoteness of the disaster site,concrete is often used in the way of site mixing,instead of river sand is mountain sand.The caving accident of anti-slide pile during the treatment of Gaoping landslide in Liuyang is the reason to study the influence of silt-sand making on the compressive strength of concrete instead of river sand.By comparing the compressive strength of a group of standard test blocks with a single variable for 3 days,7 days and 28 days,it is concluded that silty sand making can not replace river sand,which will play a guiding and warning role in the selection of anti-slide pile materials for Hunan governance project.

关 键 词：粉砂岩制砂 取代河砂 砼强度比对试验 结论 

分 类 号：TU528[建筑科学—建筑技术科学]