高弹性橡胶止水模型实验及全周鼓起变形测量  

Water Stopping Model Experiment of High Elastic Rubber and Measurement of Full Circumferential Bulging Deformation

作　　者：王辉[1] 朱飞鹏[2] 韩威 尚振兰 叶建光[1] 李天宇 彭宣茂[2] WANG Hui;ZHU Feipeng;HAN Wei;SHANG Zhenlan;YE Jianguang;LI Tianyu;PENG Xuanmao(Management Office of Jiangsu Huaishu Xinhe,Huai'an 223001,Jiangsu,China;College of Mechanics and Engineering Science,Hohai University,Nanjing 211100,Jiangsu,China)

机构地区：[1]江苏省淮沭新河管理处,江苏淮安223001 [2]河海大学力学与工程科学学院,江苏南京211100

出　　处：《力学季刊》2024年第2期329-337,共9页Chinese Quarterly of Mechanics

基　　金：国家自然科学基金(12172120)。

摘　　要：针对涵洞、隧道等水工建筑物在长期运营过程中出现的渗漏问题,利用高弹性橡胶进行封堵止水是一种行之有效的措施.为了评价不同橡胶的封堵效果,提出一种高弹性橡胶止水实验模型,将橡胶安装在模型伸缩缝中,通过施加静水压力测试橡胶的封堵性能.同时,提出一种利用电动旋转台的全周三维数字图像相关(Digital Image Correlation, DIC)方法,利用单套三维DIC系统,即可测量得到内侧橡胶在不同静水压力、各个视角下的鼓起变形.按照1∶1比例浇筑了实物模型,开展了静水压力实验,并测得了所选橡胶能承受的最大水压力和全周鼓起变形,验证了止水模型实验的可行性和全周变形测量方法的有效性.The use of high elastic rubber for sealing and water stopping is an effective approach to address the leakage problems that occur in long-term operation of hydraulic structures such as culverts and tunnels.In order to evaluate the sealing effect of different rubbers,a high elastic rubber sealing experimental model is proposed.The rubber is installed in the expansion joint of the model,and the sealing performance of the rubber is tested by applying hydrostatic pressure.Meanwhile,a full circumferential 3D digital image correlation(3D-DIC)method using an electric rotary table is proposed.By using a single 3D-DIC system,the bulging deformation of inner rubber under different hydrostatic pressures and in different angles of view can be measured.A hydrostatic pressure experiment is conducted on a physical specimen poured in 1∶1 ratio.The maximum water pressure that the selected rubber can withstand and the full circumference bulging deformation are measured,verifying the feasibility of the waterstopping model experiment and the effectiveness of measurement method of the full circumference deformation.

关 键 词：高弹性橡胶 模型实验 全周鼓起变形 静水压力 数字图像相关 

分 类 号：O348.1[理学—固体力学]