Waterproof structure of bottom slab pile cap
By setting a 45° slope at the location to be poured on the foundation slab and laying waterproof membrane and isolation layer, combined with the integral pouring of concrete layer, the problems of low waterproofing efficiency of the foundation slab and poor waterproofing effect of the connection nodes are solved, achieving more efficient waterproofing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH ENG DIV CORP LTD ZHEJIANG CONSTR CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-26
AI Technical Summary
The existing waterproofing methods for the foundation slab and abutment are inefficient and have poor waterproofing effect at the connection joints.
Set a 45° slope at the location to be poured on the foundation slab, lay waterproof membrane and add an isolation layer on top, and then pour the concrete layer integrally with the foundation slab to increase the contact area of the waterproof membrane and improve the adhesion.
It increases the contact area and adhesion of the waterproof membrane, eliminates the risk of leakage, and optimizes the waterproofing effect between the base plate and the base plate support.
Smart Images

Figure CN224412637U_ABST