Subway Construction

日期：2026.02.10

类型： Industry dynamics

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Subway construction covers core scenarios such as shield tunnels, station foundation pits and side walls, connecting passages and pump rooms, entrances, exits and air shafts. Faced with multiple challenges including high groundwater level, many segment joints, structural deformation risks, narrow construction space and wet base surfaces, the product provides targeted solutions:
Shield Tunnel Segment Protection: Suitable for key parts such as shield tunnel segment assembly joints and segment damage repair, it can be directly constructed on wet segment base surfaces without additional leveling and drying. It deeply penetrates and fills the gaps of segment joints, forms a permanent insoluble crystalline waterproof barrier, and effectively blocks groundwater penetration through the joints.The product has good compatibility with special gaskets for segments, can form a composite protection system of "gasket + waterproof mortar", and has anti-vibration performance at the same time, which can adapt to the structural stress release after shield construction and avoid joint leakage.
Station Foundation Pit and Side Wall Protection: Aiming at the scenarios of subway station foundation pit excavation and side wall shotcrete construction, the product can be constructed as the side wall anti-seepage base course, which can closely bond with the shotcrete base surface, fill the gaps and micro-cracks of the base surface, resist the groundwater penetration around the foundation pit, and prevent the side wall from dampness and leakage affecting the subsequent decoration process.After construction, it can bear the earthwork extrusion impact during foundation pit backfilling, has both waterproof and structural reinforcement functions, and is suitable for the treatment of complex nodes of station side walls (such as reserved holes, internal and external corners) to ensure the overall waterproof effect.
Connecting Passage and Pump Room Protection: Connecting passages and pump rooms are core areas with high water level and high humidity in subway projects, with narrow space and high construction difficulty.The product's one-component dry powder form is suitable for operation in narrow spaces. It can be manually applied after mixing with water without large-scale equipment; it has no aging or leakage after long-term immersion, can effectively block groundwater penetration, and is resistant to acid-base and salt erosion, resisting the corrosion of water and soil media in the pump room, so as to ensure the traffic safety of the connecting passage and the normal operation of the pump room equipment.
Entrance, Exit and Air Shaft Protection: Suitable for the waterproof construction of subway entrance and exit passages, air shaft facades and base courses, the product has impermeable, weather-resistant and UV-resistant properties, can resist aging damage caused by alternating rain, sun exposure and temperature changes, and avoid leakage of entrance and exit passages and corrosion of air shaft structures.It has good compatibility with entrance and exit paving materials and air shaft exterior wall decoration layers, with convenient and efficient construction, which can shorten the construction period of entrances, exits and air shafts and ensure rapid put into use.

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