Bailey Suspension Layout for Complex Pipe Crossing Support

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Solution Overview

Problem

The existing Bailey support systems are inadequate for crisscross spanning in complex underground pipeline intersections, particularly at road intersections where height differences and safety risks are significant, leading to increased costs and safety concerns.

Innovation Solution

A Bailey support system comprising multiple suspension systems (Type I to V) with I-shaped steel assemblies, Bailey support assemblies, suspension devices, and drilled piles, arranged in specific configurations to provide stable support for complex pipes and cables without the need for heightening drilled piles, utilizing a method that includes detecting underground pipe networks, installing drilled piles, and arranging steel assemblies and support devices for secure pipeline support.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If drilled piles are heightened to achieve crisscross spanning, then the spanning capability is improved, but the safety risk increases due to exposed length and concentrated weight

Engineering Contradiction:

Improvecrisscross spanning capabilityVSAvoidsafety risk

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The support system is divided into multiple independent Bailey support assemblies (first, second, third, fourth, fifth) arranged in different orientations. Each assembly spans a specific direction and supports specific pipelines, avoiding the need for a single tall drilled pile. The segmentation distributes the load across multiple shorter piles arranged in a spatial configuration that achieves the required crisscross spanning capability without increasing individual pile height.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The solution transitions from a vertical dimension problem (heightening single piles) to a spatial arrangement problem. Multiple Bailey support assemblies are arranged in three-dimensional space with different orientations (parallel and perpendicular configurations). This spatial arrangement achieves crisscross spanning by utilizing horizontal and diagonal positioning rather than vertical height, thereby avoiding the safety risks associated with tall exposed piles.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If drilled piles are heightened for crisscross spanning, then the support coverage is improved, but the construction cost increases

Engineering Contradiction:

Improvesupport coverageVSAvoidconstruction cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The Bailey support assemblies are designed as reusable components. After the pipelines are supported and stabilized, the Bailey support assemblies can be removed and reused in other construction projects. This recovers the investment in these expensive components, significantly reducing the overall construction cost compared to permanent concrete piles or other non-reusable support structures.

Inventive Principle:

Principle #34Discarding and recovering

Solution Approach 2:

The system uses temporary Bailey support assemblies instead of permanent expensive foundations. These supports are installed only for the duration needed to support pipelines during construction, then removed and reused elsewhere. This approach replaces costly permanent infrastructure with temporary, reusable, and more economical support elements.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Strength

If drilled piles are heightened to support complex pipelines, then the load bearing capacity is improved, but the safety risk increases due to monsoon exposure

Engineering Contradiction:

Improveload bearing capacityVSAvoidmonsoon exposure risk

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The total load from complex pipelines is distributed across multiple shorter drilled piles arranged in a Bailey support configuration. Instead of concentrating weight on one or two tall piles that would be exposed to monsoon forces, the load is segmented and borne by several shorter piles, reducing the exposure risk while maintaining adequate load bearing capacity through collective support.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11473262B2Bailey support system applied to cross protection of complex pipes and cables and construction method thereof

Publication Date: 2022.10.18 CHINA RAILWAY 18TH BUREAU GRP CO LTD

AI summary

Disclosed is a Bailey support system applied to cross protection of complex pipes and cables in an intersection tunnel, including a type I suspension system, a type II suspension system, type III suspension systems, a type IV suspension system, and a type V suspension system, where two groups of the type III suspension systems are disposed on a front side of the type IV suspension system, and two groups of the type III suspension systems are disposed on a rear side of the type IV suspension system and are in one-to-one correspondence with the other two groups disposed on the front side, the type II suspension system and the type I suspension system are sequentially disposed on a left side of the type IV suspension system from left to right, and the type V suspension system is disposed on a right side of the type IV suspension system.