Shipborne Truss In-Situ Testing Platform Stability
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Solution Overview
Problem
Existing in-situ testing techniques for nearshore water areas face challenges due to high costs, instability from wind, waves, and tidal fluctuations, making it difficult to maintain a static platform for accurate geotechnical parameter measurement.
Innovation Solution
A shipborne truss combined in-situ testing platform with a truss load bearing frame, operation platform, drive shoe, and centering device using soft ropes to create a stable, modular, and cost-effective static platform isolated from dynamic shipborne exploration, allowing for accurate testing despite environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a shipborne exploration platform is used for water area in-situ testing, then the platform can operate in various water depths and environmental conditions, but the platform is affected by wind, wave, surge, and tide causing it to move up and down, left and right, making in-situ testing difficult to proceed
Solution Approach 1:
The system is divided into two independent parts: a dynamic shipborne exploration platform and a static in-situ testing platform. The testing platform is separated from the moving ship through soft ropes, allowing each component to perform its function independently - the ship provides mobility while the testing platform provides stability.
Solution Approach 2:
Soft ropes are introduced as intermediary elements connecting the shipborne platform to the in-situ testing platform. These ropes allow relative movement between the ship and testing platform, absorbing the effects of wave motion and maintaining testing stability while preserving the ability to deploy in various water conditions.
2Stability of the object's composition
If conventional pile foundation and elevation typed platform are used for water area in-situ testing, then the platform can provide stable testing conditions, but the cost is expensive
Solution Approach 1:
The in-situ testing platform is designed with multi-functionality, serving both as a stable testing platform and as a structure that can be deployed from and with the shipborne exploration platform. The same platform structure provides both stability for testing and adaptability for various deployment scenarios, eliminating the need for separate expensive pile foundation constructions.
Solution Approach 2:
The platform design allows adjustment of key parameters such as water depth adaptability and testing depth through modular construction and adjustable soft rope lengths. This flexibility enables the platform to maintain stability across varying operational conditions without requiring expensive custom-built solutions for each specific scenario.
3Stability of the object's composition
If a bottom suction platform is used for water area in-situ testing, then the platform can be hoisted by a crane to set upright in water approximating land area static state, but it is subject to operating water depth, space of the platform and loading effects making conventional measures difficult to resolve
Solution Approach 1:
The system transitions from a completely static platform approach to a dynamic configuration where the testing platform is suspended by flexible soft ropes. This dynamic setup allows the platform to adapt to various water depths and loading conditions while maintaining stability, and enables easier handling of complex soil layers through the flexibility and adjustability of the rope suspension system.
Data Source
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AI summary
A shipborne truss combined in-situ testing platform comprising: a truss load bearing frame (400), formed by vertically connecting a plurality of truss modules (410) in series; an operation platform (200), fixed at an upper end of the truss load bearing frame (400), a machine frame seat (204) used for installing an in-situ testing device (201) being disposed on the operation platform (200); a drive shoe (500) fixed at a lower end of the truss load bearing frame (400), the bottom of the drive shoe (500) being provided with shoe teeth (503); a catheter (600), successively penetrating the operation platform (200), the truss load bearing frame (400), and the drive shoe (500) along an up-down direction; and a centering device (300), comprising a plurality of soft ropes (302), one end of the soft rope (302) being connected to the upper end of the truss load bearing frame (400) or the operation platform (200).