High-low terrain building foundation waterproof closing structure and process

Abstract

The invention discloses a high-low terrain building foundation waterproof closing structure and process. The waterproof closing structure comprises a head closing and edge pressing groove in the position, close to the edge, of the top of a foundation pit, a lower waterproof coiled material is laid from the bottom of the foundation pit to the head closing and edge pressing groove, fine aggregate concrete is poured in the head closing and edge pressing groove, the end face of a first part of an underground water level upper foundation constructed between an underground water level lower foundation constructed at the bottom of the foundation pit and the head closing and edge pressing groove is painted with waterproof paint at least two times, and the waterproof paint extends from the end faceto the top face of the first part and the top face of the foundation pit; and a reinforcing steel bar water stop ring is mounted on reinforcing steel bars extending from the first part to the head closing and edge pressing groove, an upper waterproof coiled material is laid on the top face of the first part of the underground water level upper foundation, and the upper waterproof coiled materialcontinuously extends to a second part of the underground water level upper foundation constructed on the top face of the foundation pit after covering the waterproof paint on the top face of the firstpart. According to the high-low terrain building foundation waterproof closing structure and process, use of the waterproof coiled materials is greatly reduced, the cost is low, and the waterproof performance is good.

Description

technical field [0001] The invention relates to a waterproof closure structure for high and low terrain building foundations and a waterproof closure technology for high and low terrain building foundations, belonging to the technical field of foundation waterproof closures. Background technique [0002] Such as figure 1 As shown, the traditional building foundation waterproof closing process usually constructs the foundation pit 60 first, and then lays the waterproof membrane 20 from the bottom of the foundation pit 60 to the top of the foundation pit 60 . Then construct the foundation 10 below the groundwater level and the foundation 70 above the groundwater level. Usually, in the process of constructing the foundation 70 above the groundwater level, the waterproof coiled material 20 is laid synchronously until the foundation 70 above the groundwater level is constructed, and the waterproof coiled material 20 is used to close the foundation 70 above the groundwater level ...

AI Technical Summary

Problems solved by technology

From the actual construction, it can be found that the waterproof coiled material 20 has effectively waterproofed the foundation 70 above the groundwater level, but the position where the foundation 70 closes above the groundwater level (such as figure 1 The position indicated by 20' in the middle) is usually 10 kilometers away from the foundation below the groundwater table, thousands of meters away, or even farther away. It can be seen that the laying range of the waterproof membrane 20 is huge, which invisibly causes serious damage to the waterproof membrane 20. waste

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