Study on the Theoretical and Experimental in Leakage Characteristics of New Type Prestressed Pipe Seal

[摘要] Based on the leakage rate analysis theory, a new type of prestressed porous rubber sealing device is invented. The compressive force and stress variation of the device are calculated by numerical simulation. The sealing coefficient of device is obtained and verified by outdoor experiments. The results show that the compressive stress is proported to the elastic modulus of the sealing ring, curvature angle of the transition section and the friction coefficient. The device of prestressed pore sealing can effectively solve the leakage problem of splicing construction, which is a simple seal structure.

[发布机构] Research Institute of Highway, M.O.C, Beijing; 100088, China^1;Beijing Jiaotong University, Beijing; 100088, China^2

[效力级别] 经济学

[关键词] Compressive forces;Curvature angle;Friction coefficients;Leakage problems;Outdoor experiment;Sealing devices;Stress variations;Transition sections