A device to prevent basement floor from uplift and water seepage

Abstract

The invention provides a device for preventing a basement bottom floor from heaving and water permeating. The device comprises self-permeating water collecting pits and a drainage device, the self-permeating water collecting pits are generally distributed along a basement foundation beam, peripheries and bottoms of the self-permeating water collecting pits are covered by geotechnical cloth, gaps between the water collecting pits and containers with filtering holes are filled by sand inverted filters, filter nets are wound on outer walls of the containers with the filtering holes, water guide tubes are arranged in the containers, and the water guide tubes are connected with an indoor drainage system of the basement. By means of the device for preventing the basement bottom floor from heaving and water permeating, the basement bottom floor which is damaged under the pressure action of underground water can be radically repaired, and repair expenses are low. As for a new construction, by means of the device, the underground water level can be controlled within a certain range according to an anti-floating bearing capacity of the basement bottom floor, the construction costs of the basement are lowered, and the device is easily acceptable.

Description

technical field [0001] The invention relates to a device for preventing basement floor uplift and water seepage, which belongs to the construction field and can be used for repairing or preventing basement floor structure damage and water seepage. Background technique [0002] There are many factors affecting the change of the groundwater level, and it is difficult to accurately provide the design anti-floating water level of the basement. At present, after the basement of many buildings is completed, due to changes in the hydrogeological conditions around the site, or due to factors such as heavy rainfall, the basement floor is subject to groundwater buoyancy exceeding the original design value, causing cracking and water seepage, and even uplift damage. The solutions are: [0003] 1. Increase the anti-floating water level during design. Although this method can prevent the basement from being damaged by uplift or cracking and water seepage, increasing the anti-floating wa...

AI Technical Summary

Problems solved by technology

[0003]1. Increase the anti-floating water level during design. Although this method can prevent the basement from being damaged by heaving or cracking and water seepage, increasing the anti-floating water level will obviously increase the cost of civil construction and extended duration

[0004]2. Inject the foamed polyurethane water-stopping agent into the cracked and seeped areas to achieve the purpose of water-stopping and anti-seepage, but this method can only solve the existing leakage problem, cannot be used to deal with basement heave damage

However, this method has great limitations: first, it can only be used for new projects, and cannot be used to deal with the leakage and uplift damage of the completed basement; Drainage during the construction stage before the pouring belt is closed, after the post-casting belt is closed, it cannot reduce and control the groundwater level; finally, because the distance between the post-casting belts is relatively large, usually about 35 meters, the post-casting belt is used as the water-conducting belt Precipitation effects are limited

However, it cannot be applied to the geological conditions of sand and gravel layers, and the waterproof structure is complicated, and leakage is likely to occur due to improper construction.

When the anti-floating anchor rod is applied to the completed basement, a large number of holes will be pierced through the original complete basement floor and waterproof layer, destroying the integrity of the concrete itself and the waterproof layer, resulting in a large number of possible water seepage points, waterproofing It is very difficult to handle, and there is a serious risk of water seepage

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