Analysis on Sealing Performance for a New Type of Rubber Olecranon-Shaped Sealing Ring in Pipe Jacking Joint

Table 1

Main mechanical parameters of the rubber ring.

Material	Shall hardness	Tensile strength (MPa)	Elongation rate (%)	Shear modulus (MPa)	Poisson’s ratio	C 10	C 01
Neoprene	50	≥9	≥375	13.694	0.47	0.328	0.082