Next, Observation Elevators Manufacturer will introduce the main causes of elevator shaft leakage:

1. Because the bottom plate is made a waterproof layer first, the concrete wall of the side wall is reproduced, which leads to the failure of the concrete wall of the side wall of the elevator shaft and the bottom plate. The original waterproof layer does not have the proper waterproof effect, so the groundwater will continue to leak into the elevator shaft from the fault.
2. During civil construction, a large amount of accumulated water in the bottom plate is not drained or drained, but the concrete is directly poured into the water, causing many honeycombs, pits, holes, and looseness around the bottom plate. The connection with the bottom plate is not strict, and the bottom of the elevator shaft is generally below the positive and negative zero water level. When the groundwater pressure is large, the groundwater will leak into the bottom pit through holes, pits, cracks and looseness, causing the elevator shaft to accumulate water.
3. The inside and outside of the side wall of the elevator shaft are not waterproofed, which causes groundwater to penetrate into the wall from the outer wall of the shaft wall and cause water accumulation in the elevator shaft.

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