Trough Plate Guide Tube Anti-Seepage Wall Construction
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Solution Overview
Problem
Existing anti-seepage reinforcement technologies for water conservancy infrastructure, such as dams and reservoirs, face issues like large disturbance damage, long construction periods, insufficient efficiency, and difficulty in complex geological conditions, particularly in soil with impurities like gravel, leading to incomplete continuity of anti-seepage walls.
Innovation Solution
A trough plate system with a guide tube, grouting pipe, and anti-blocking head is designed for constructing a locked polymer anti-seepage wall, allowing for easy engagement and reuse of trenching equipment, and featuring sealing plugs and a cone-shaped anti-blocking head to prevent soil entry and ensure continuous grouting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conical head is used for forming slots, then the equipment is simple, but the stiffness is insufficient causing deflection and poor continuity of anti-seepage body
Solution Approach 1:
The equipment is divided into a rigid guide tube and a separate conical head component. The guide tube provides structural stiffness and maintains slot straightness, while the conical head focuses on slot formation. This segmentation allows each component to specialize in its function without compromising overall performance.
Solution Approach 2:
The guide tube acts as an intermediary structure that provides rigidity and guidance to the conical head during slot formation. It ensures the conical head remains stable and does not deflect, thereby maintaining slot continuity while keeping the equipment design relatively simple.
2Productivity
If polymer grouting technology is used, then rapid reaction and expansion are achieved, but the technology is greatly affected by geological conditions especially in soil containing impurities
Solution Approach 1:
The conical head is designed as a disposable component that can be easily replaced. In difficult geological conditions, if the conical head becomes blocked or damaged, it can be quickly replaced without affecting the overall equipment or requiring complex repairs, thus maintaining high productivity across various geological conditions.
Solution Approach 2:
The system allows dynamic adjustment of the conical head based on geological conditions. Different conical heads can be selected or replaced according to the specific soil conditions encountered, enabling the system to adapt to various geological environments while maintaining rapid grouting capability.
3Manufacturing precision
If multiple trough plates are engaged for construction, then the anti-seepage wall continuity is improved, but the engagement between trough plates is difficult
Solution Approach 1:
The trough plates are designed with self-aligning features including guide edges and positioning structures that automatically align adjacent plates during engagement. This self-service mechanism reduces the skill level required for operation and speeds up the engagement process while ensuring continuous anti-seepage wall formation.
Solution Approach 2:
The trough plates are designed with standardized interfaces and uniform dimensions that create equivalent engagement conditions for all adjacent plates. This equipotential design ensures that each plate connects seamlessly to its neighbors, maintaining anti-seepage continuity while simplifying the engagement process through standardized procedures.
4Reliability
If slot depth is increased to improve anti-seepage effect, then the grouting effectiveness is improved, but the slot depth is insufficient due to equipment deflection
Solution Approach 1:
The slot formation function is segmented between the conical head (which creates the slot) and the guide tube (which provides rigidity and maintains depth). This segmentation allows the slot to reach the required depth without the entire equipment deflecting, as the guide tube provides structural support throughout the slot formation process.
Data Source
AI summary
A trough plate for constructing a locked polymer anti-seepage wall includes a plate body, a guide tube, a grouting pipe and an anti-blocking head. A construction method of the locked polymer anti-seepage wall includes the steps of positioning an Nth trough plate and then pressing the Nth trough plate into ground, wherein N is a natural number larger than and equal to 1; engaging an (N+1)th trough plate with the Nth trough plate, and then pressing the (N+1)th trough plate into the ground; connecting a grouting pipe of the Nth trough plate with a grouting machine, pulling out the Nth trough plate, and simultaneously grouting through the grouting pipe of the Nth trough plate by the grouting machine; and repeating the steps (B) and (C) till the locked polymer anti-seepage wall is completed, wherein the steps (B) and (C) are repeated every time, N is automatically increased by 1.


