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

VSEngineering 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

Engineering Contradiction:
Improveequipment simplicityVSAvoidcontinuity of anti-seepage body
Core Design Contradiction:
Device complexityVSManufacturing precision

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.

Inventive Principle:
Principle #1Segmentation

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.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Engineering Contradiction:
Improvegrouting speedVSAvoidadaptability to geological conditions
Core Design Contradiction:
ProductivityVSAdaptability or versatility

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.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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.

Inventive Principle:
Principle #15Dynamics

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

Engineering Contradiction:
Improveanti-seepage wall continuityVSAvoidengagement ease
Core Design Contradiction:
Manufacturing precisionVSEase of operation

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.

Inventive Principle:
Principle #25Self-service

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.

Inventive Principle:
Principle #12Equipotentiality

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

Engineering Contradiction:
Improveanti-seepage effectivenessVSAvoidslot depth
Core Design Contradiction:
ReliabilityVSLength of stationary object

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.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11499284B2Trough plate for constructing locked polymer anti-seepage wall and construction method of locked polymer anti-seepage wall
Publication Date: 2022.11.15 ZHENGZHOU UNIV
  • US11499284B2 patent drawing
  • US11499284B2 patent drawing
  • US11499284B2 patent drawing

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.