The basement can be said to be a very common project, but the most troublesome thing in the basement is the waterproofing problem. Therefore, we must do a good job of basement waterproofing to avoid causing great difficulties to the future life. In the end, how to do basement waterproofing is correct. ? Let's take a look at how the basement waterproofing construction plan is done.
Basement waterproofing design basic requirements:
(1) The waterproofing design scheme for the basement shall follow the basic principle of prevention, priority to row, adaptation to local conditions, advanced design, waterproof and reliable, and economical and reasonable. It can be designed according to the requirement of basement waterproof engineering protection table.
(2) Design of general basement waterproofing works. The external walls are mainly resistant to water pressure or self-waterproofing, and then waterproof outside the coiled material (that is, facing the water surface); and the coiled material waterproofing method shall be constructed in compliance with relevant state regulations.
(III) The underground works are relatively complex. The underground soil quality, water quality, and groundwater level must be known when designing. Effective design is adopted to ensure waterproof quality.
(4) When the maximum water level of the basement is higher than that of the basement floor, the design of the basement shall consider the integral reinforced concrete structure to ensure the waterproof effect.
(5) The determination of the elevation of the basement fortification shall be based on the highest water level elevation provided by the survey data, plus 500mm for the elevation of the fortification, the upper part may be treated for moisture protection, and the surface water may be designed according to the safety and waterproof basement.
(6) Basement waterproofing. According to the actual situation, flexible waterproof or rigid waterproofing may be adopted. If necessary, a rigid and flexible combination waterproofing scheme may be adopted. Under special requirements, multiple defense schemes such as overhead and clip walls can be used.
(7) When the underground outdoor waterproof working face is used, external defense in-paste method may be used, and conditions may be changed to external protection and external attachment method.
(8) For the protection of the underground outdoor waterproof layer, a soft protective layer such as polystyrene board may be adopted.
(9) For the special parts, such as deformation joints, construction joints, wall pipe, embedded parts and other weak links should be carefully designed and detailed treatment should be carried out as required.
Basement waterproof construction program which there are several?
Option one: external defense outside the method of construction
The method of waterproofing the exterior of the exterior is to lay a waterproof membrane on the floor cushion as a waterproof layer, and after the wall construction of the envelope structure is completed, the facade waterproof membrane (waterproof layer) is directly laid on the envelope structure. The outer wall surface, then take protective measures of the basement waterproof construction method.
The advantage of this basement waterproof construction scheme is that over time, the concrete of the wall of the envelope structure will gradually dry out, which can effectively prevent indoor humidity, but when the foundation pit is used for large excavation and sheet pile support, it is necessary to take Measures to address the problem of horizontal support sites affecting the closure of the basement.
Option II: External defense inside the method of construction
In the outer defense inlay method, the permanent protective wall is first assembled on the floor mat, and then the waterproof membrane (waterproof layer) is laid on the permanent protective wall and the floor mat, and the waterproof layer of the basement is completed. Finally, the concrete of the envelope structure is poured. This basement waterproofing construction scheme is a basement plugging construction method that has to be adopted because it is limited in the construction environment conditions and it is difficult to implement the external prevention and external attachment method.
Option 3: Waterproof Lining Lining
Wall waterproof construction of the lining This basement waterproof construction plan is to take waterproof measures in addition to the concrete wall of the retaining structure and its inner surface. In order to meet the requirements for the sealing of the basement, an additional wall is required to be built on the inner side of the main wall. . Although the basement waterproof design scheme is multi-channel protection and is conducive to drainage, there is a high cost, the wall structure of the envelope structure is not easy to be fully dried, and it is difficult to ensure the water tightness of the joints of the column and wall concrete.
Basement Waterproof Construction Precautions
1. The construction materials and auxiliary materials are mostly flammable materials. The warehouse and construction site for storage materials must comply with the relevant national fire protection regulations. The use of xylene and other solvents should have appropriate anti-virus measures.
2. The operator must wear a safety helmet when working in the basement waterproof engineering site.
3, pay attention to product protection. Waterproof construction must be coordinated with relevant process operations, and the waterproof professional team and relevant construction operators should jointly protect the waterproof layer from damage. Do not wear waterproof shoes with spiked shoes.
The above points are the relevant information of the basement waterproofing construction scheme summed up for everyone on this site. I believe we will have a certain understanding after reading it. This way, everyone will know a lot, if you still have those who want to understand You can check it out on our website.
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