A subfloor drainage system

CN224338304UActive Publication Date: 2026-06-09CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
Filing Date
2025-05-14
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing drainage system is easily disturbed and cannot effectively channel and collect water seeping from inside the structure, leading to leakage problems in the base slab.

Method used

The system employs a base slab blind drain system, a side wall pre-embedded grouting system, and a side wall drainage system, which includes longitudinal and transverse drainage blind drains, reusable grouting pipes, and vertical drainage strips, to construct an efficient water diversion and collection mechanism.

Benefits of technology

It achieves efficient drainage and collection of moisture inside the structure, reduces maintenance costs, optimizes resource allocation, and improves engineering quality and durability. It is applicable to urban rail transit, railways and building construction.

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Abstract

The utility model relates to a kind of bottom plate waterproof and drainage system.The existing waterproof and drainage system is easily interfered by various factors, and water seeping from the inside of structure cannot be drained and collected.The utility model includes bottom plate blind ditch system, side wall pre-buried grouting system and side wall drainage system;Bottom plate blind ditch system is set below cushion, including multiple longitudinal drainage blind ditches and multiple horizontal drainage blind ditches;Side wall pre-buried grouting system includes multiple repeatable grouting pipes and multiple horizontal pre-buried grouting pipes, and repeatable grouting pipe is set between primary support and waterproof layer along vertical direction;Side wall drainage system includes multiple vertical drainage plate strips and multiple longitudinal drainage plate strips, vertical drainage plate strip is set between station vertical height network spray and waterproof layer, and longitudinal drainage plate strip is set in side wall longitudinal construction joint position.The utility model's waterproof and drainage system is not easily interfered by various factors, and water seeping from the inside of structure can be drained and collected.
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