Retaining Wall Block Tieback Connection Mechanism

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Solution Overview

Problem

Existing retaining wall systems fail to provide a fast and secure connection of tiebacks to wall panels without risking damage to the panels, and lack features for stabilizing unstable slopes and retaining soil on steep slopes effectively.

Innovation Solution

A mechanically stabilized earth retaining wall block system with block members featuring an elongate channel, reinforcing members, and connecting anchors that allow for force transmission and secure attachment of tiebacks, enabling the formation of a versatile and stable retaining wall structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If tiebacks are securely connected to wall panels using known methods, then connection strength is improved, but the risk of damaging or spalling the panel increases

Engineering Contradiction:
Improveconnection strengthVSAvoidpanel damage risk
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary connection system comprising a connection element with a body that engages with both the tieback and the wall panel through a recess, distributing forces across multiple contact points (flanges, ribs, and recess surfaces) rather than concentrating stress at single attachment points, thereby securing tiebacks while preventing panel damage

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connection element is segmented into multiple functional features including flanges for lateral engagement, ribs for vertical engagement, and a recess for tieback insertion, allowing forces to be distributed across multiple segments and reducing stress concentration on any single point of the wall panel

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If retaining wall systems are designed to stabilize unstable slopes and retain soil on steep slopes, then structural stability is improved, but device complexity increases

Engineering Contradiction:
Improveslope stabilityVSAvoidsystem complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The connection element serves multiple functions simultaneously: it anchors tiebacks to the wall panel, distributes structural forces, provides lateral and vertical engagement through flanges and ribs, and prevents panel damage, thereby achieving slope stabilization without requiring multiple separate components

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the tieback attachment mechanism, force distribution system, and panel protection features into a single integrated connection element, reducing the number of separate components needed while maintaining the stability required for steep slope retention

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9458594B2System and method for retaining wall
Publication Date: 2016.10.04 OLDCASTLE INFRASTRUCTURE INC
  • US9458594B2 patent drawing
  • US9458594B2 patent drawing
  • US9458594B2 patent drawing

AI summary

A retaining wall system for mechanically stabilizing an earthen wall is provided. The system comprises a plurality of modular block members that may be assembled in a number of desired states or orientations. Tieback members for supporting the wall and related fill are provided and the wall comprises interconnection members for the tieback members.