How to deal with water seepage in elevator shafts

How to deal with water seepage in the elevator shaft?

1. Elevator shaft waterproofing construction method - first remove the accumulated water in the elevator shaft foundation pit and interlayer, and clean the base layer;

2. Elevator shaft waterproofing construction method - cloth Holes: Construction operators started from the first measurement of the elevator shaft foundation pit to find leaking points one by one and marked them with red spray paint. The marking method is determined according to the location of the leakage. Large-area leakage is marked with dense red dots, and crack leakage is marked with red ×. Generally, the two sides are marked alternately every 250px along the direction of the crack. Red ○ mark;

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3. Elevator shaft waterproofing construction method - drilling elevator shaft waterproofing construction: After the holes are laid, the following construction workers hold electric drills according to the The red mark is drilled 3 to 100px away from the leakage point at an angle of 45° to the base surface. The hole diameter is the diameter of the grouting nozzle (10mm). The drilling depth is half of the thickness of the structural layer. The drilling depth of the hole marked with the red dot is It should be shallow, and the drilling depth at the point marked with a red × should be deeper and slightly inclined toward the crack. The point marked by the red ○ should be drilled deeper until water flows out; then install the grouting nozzle at the place where the hole is drilled. During installation, it should be as deep as possible, with only 1 to 37.5px exposed outside the wall and tightened.

What is the main cause of leakage in elevator shafts?

1. The reason for the leakage in the elevator shaft - because the bottom plate is first made of waterproof layer, and then the side wall concrete wall is poured, which causes the elevator shaft side concrete wall and the bottom plate to be faulted. The original construction waterproof layer did not have the proper waterproofing effect, so groundwater would continue to leak into the elevator shaft from the fault.

2. The reason for leakage in the elevator shaft - during the waterproofing construction of the elevator shaft, the large amount of water in the bottom plate was not drained and drained, but the concrete was poured directly into the water, resulting in many honeycombs and honeycombs around the bottom plate. Pockmarked, holes, loose. The connection with the bottom plate is not tight, and the bottom of the elevator shaft is generally below the plus or minus zero water level. When the groundwater pressure is high, groundwater will leak into the pit through holes, pits, cracks, looseness, etc., causing accumulation in the elevator shaft. water.

3. The reason for the leakage in the elevator shaft - the side walls of the elevator shaft are not waterproofed inside and outside, causing groundwater to penetrate into the wall from the outer wall of the shaft wall and cause water accumulation in the elevator shaft.

The editor’s warm reminder: When repairing water leakage in the elevator shaft, you must choose to carry out construction on a sunny and windless day to ensure the safety of the construction workers. Okay, how to deal with water seepage in the elevator shaft? The knowledge about the main causes of leakage in elevator shafts has been introduced. I hope it can help you.