A basement roof advance covering soil steel plate post-pouring band structure
By setting steel plates and pouring steel pipes at the post-pouring strip of the basement roof slab, combined with the formwork support system, the problem of the backfilling sequence of the basement roof slab was solved, enabling early backfilling and convenient pouring, shortening the construction cycle and ensuring construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- COAL IND HANDAN DESIGN RES INST
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-16
AI Technical Summary
In existing technologies, the soil covering the basement roof slab must be poured after the post-pouring strip is poured before backfilling, which results in slow construction progress and difficulty in quality control.
Steel plates and casting steel pipes are installed at the post-pouring strip, and combined with the formwork support system, the top slab is covered with soil in advance. The combination structure of steel plates and casting steel pipes ensures waterproofing and ease of construction. The post-pouring strip concrete is then poured through the casting steel pipes.
It enables the basement roof slab to be backfilled with soil in one go, shortens the construction period, ensures construction quality, prevents rainwater intrusion, and makes the post-pouring strip pouring convenient and the quality controllable.
Smart Images

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