As the construction of new transportation infrastructure continues to advance, the smart transportation infrastructure is continually being upgraded, and it is imperative to build smart tunnels. This article focuses on constructing digital, networked, intelligent super-long underwater tunnels in Taihu Lake. Research on the design of smart tunnel facilities is carried out for tunnel intelligent vision systems, full-frequency broadcast delivery systems, vehicle-road collaboration technology, CPS tunnel-based ventilation and energy-saving system, and adaptive intelligent anode lighting system. Utilizing technologies such as dynamic visual landscape, directional acoustic emission, 5G/RSU data acquisition, intelligent sensor data acquisition, and data mining processing algorithm to construct high-efficiency cloud platform architecture for real-time detection of traffic conditions and environmental information in tunnels in real-time. Optimize the smart management and service of tunnels to alleviate the oppressive sense of constriction in tunnels. Reducing the impact on the daily life of the surrounding residents, optimizing emergency response measures, improving the public information release service means, reducing the energy consumption of tunnel lighting, improving tunnel operation efficiency and management level, and finally achieving "safety priority, comfortable travel, energy efficiency."

In view of the fact that the sealing rubber is prone to edge warping under compression, which seriously affects the waterproof effect of segment joint, based on the grid mapping technology in ABAQUS/standard, the compression numerical model of hyperelastic rubber gasket is established, and the numerical simulation of axial compression is carried out for 7 kinds of gaskets with different opening shapes, opening rates and hole arrangement. The results show that in the whole process of compression simulation, the stress on the contact surface of elastic gasket meets the multi peak W distribution law of large at both ends and small in the middle; compared with other types of gasket, the maximum average contact stress of the gasket with closed hole of rounded triangle is increased by 86.8%; compared with other types of gaskets with different opening rate, the maximum average contact stress of the gasket with the opening rate of 0.294 increases by 92.6%; the maximum average contact stress of the gasket arranged with staggered holes is 25.2% higher than that of the gasket arranged with opposite holes; compared with the change of open hole configuration, the change of closed hole configuration is more sensitive to the contact stress. The maximum difference of average contact stress between two simulations under the same working condition is 85.2%.