What are the main causes of water leakage in elevator shaft? In order to avoid these situations.

The water leakage in the elevator is a terrible thing, so what are the main reasons for the water leakage in the elevator shaft? What are the hazards of water leakage in elevator shaft? We will explain it for you.

1. What is the main reason for the water leakage in the elevator shaft?

1. The concrete wall of the side wall of the elevator shaft was broken together with the bottom plate because the floor was waterproof first and the side wall was cast in place. The ground waterproofing of the original project didn't have the proper moisture-proof effect, and underground water would seep into the elevator shaft from the fault block.

2. In the waterproof engineering of elevator shaft, a large amount of accumulated water in the bottom plate is not discharged, and concrete is directly poured into the water, resulting in many honeycombs, pits, holes and looseness around the bottom plate. The work handover with the bottom plate is not tight, and the bottom of the elevator is generally below plus or minus zero water level. When the groundwater pressure is high, the groundwater will leak into the pit according to holes, pits, cracks and looseness, resulting in water accumulation in the elevator shaft.

3. The inside and outside of the side wall of the elevator shaft is not waterproof, which leads to groundwater infiltrating into the wall from the shaft wall, resulting in water accumulation in the elevator shaft.

2. What are the hazards of water leakage in elevator shafts?

Water seepage in elevator shaft will affect people's normal use. If water accumulates, the power switch and wiring of the oil pressure buffer in the pit may be soaked. If there is too much water, the fire hose will rise and fall on the portal crane or the junction box of the elevator car after the compensation chain gets wet, which will lead to elevator failure and potential safety hazards.

3. What are the solutions to the water seepage in the elevator shaft?

1. Clean up the accumulated water in the deep foundation pit and interlayer of the elevator shaft, and remove the bottom layer;

2. Hole arrangement: The construction workers gradually searched for the leakage point from the first survey of the deep foundation pit of the elevator shaft and marked it with bright red spray paint. According to the location of water leakage, the identification method is clear;

3. Waterproof project of perforated elevator shaft: After the holes are laid, the construction team that follows will drill holes with a hand-held electric drill at the position of 3- 100px next to the water leakage place at an angle of 45o with the ground according to the mark, and the diameter is the diameter of the grouting nozzle, and the drilling depth is half the thickness of the solid layer. Assemble the grouting nozzle in the drilling area, and set it as deep as possible. Only 1-37.5px is exposed in the wall and tightened.