地下工程变形缝用膏状嵌缝材料极限沉降试验研究  

Experimental Study on Ultimate Settlement of a Paste Caulking Material for Deformation Joints of Underground Engineering

作　　者：杨海荣 刘昶 张宸 Yang Hairong;Liu Chang;Zhang Chen(School of Architecture,North China University of Water Resources and Electric Power,Zhengzhou,He'nan450046,China;School of Civil Engineering,Zhengzhou University,Zhengzhou,He'nan450001,China)

机构地区：[1]华北水利水电大学建筑学院,河南郑州450046 [2]郑州大学土木工程学院,河南郑州450001

出　　处：《中国建筑防水》2023年第2期47-52,共6页China Building Waterproofing

摘　　要：为研究膏状嵌缝材料用于地下工程变形缝时的沉降情况,设计了极限沉降试验模型,即保持变形缝缝宽和水压不变的情况下,在相同时间间隔内按照设定的下降高度使变形缝发生沉降变形,并通过观察水压变化与防水材料渗漏情况得出膏状嵌缝材料在变形缝正常止水状态下沉降变形的极限值。该试验模型对类似膏状嵌缝材料的极限沉降值测试具有广普性。In order to study the settlement of the paste caulking material used in the deformation joint of underground engineering,an ultimate settlement test model is designed,that is,under the condition that the width and water pressure of the deformation joint remain unchanged,the deformation joint is subject to settlement deformation at the same time interval according to the set fall height,and the limit value of the settlement deformation of the paste caulking material under the normal water stop state of the deformation joint is obtained by observing the water pressure change and the leakage of the waterproofing material.The test model is widely used to test the limit settlement value of similar paste caulking materials.

关 键 词：地下工程 变形缝 膏状嵌缝材料 极限沉降试验 

分 类 号：TU502[建筑科学—建筑技术科学] TU578