Plant Equipment Foundation Lifting via Curtain Wall Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional construction methods for plant equipment foundations result in subsidence and deformation due to inadequate bearing capacity and denseness of the backfilling soil layer, leading to low machining accuracy and difficulty in precise lifting and reinforcement.
Innovation Solution
A method involving the formation of curtain walls and a reinforcing body using grouting and rebars to isolate the lifting area, allowing for controlled and precise lifting with minimal disturbance to the surroundings, and enhancing the foundation's bearing capacity and integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional direct placement on concrete baseplate is used, then construction simplicity is improved, but foundation bearing capacity and machining accuracy deteriorate due to soil layer subsidence and deformation
Solution Approach 1:
The patent applies preliminary action by forming curtain walls through grouting holes before the lifting process. These curtain walls are created in advance to isolate the lifting area, preventing soil layer disturbance during subsequent operations. This preliminary structural preparation ensures that the foundation maintains its integrity and bearing capacity throughout the lifting process, thereby preserving machining accuracy while enabling the lifting operation.
2Device complexity
If conventional lifting without curtain walls is performed, then construction complexity is reduced, but lifting precision and controllability deteriorate due to slurry diffusion and loss of grouting pressure
Solution Approach 1:
The patent applies segmentation by dividing the lifting area from the non-lifting area using curtain walls formed through grouted holes. This spatial segmentation contains the grouting pressure within the lifting zone, preventing slurry diffusion to surrounding areas. The segmented structure enables precise control of lifting force and height, achieving high lifting precision without requiring overly complex construction procedures.
3Ease of manufacture
If conventional grouting without reinforcing body is used, then construction simplicity is maintained, but foundation integrity and lifting controllability deteriorate due to baseplate bulging and difficulty in controlling lifting velocity
Solution Approach 1:
The patent applies composite materials by forming a reinforcing body that combines grouted soil with rebar reinforcement. This composite structure, positioned between the baseplate and curtain walls, significantly enhances foundation integrity and bearing capacity. The reinforcing body prevents baseplate bulging during lifting and provides a stable platform for controlled lifting operations, maintaining construction simplicity while improving structural stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables precise and controlled lifting with reduced disturbance, increased precision, and improved foundation integrity, preventing bulging and subsidence, while maintaining equipment operation stability.
Implementation Method 1
conducting pressure grouting to the bottom of the lifting holes and then backward grouting upwards layer by layer, by which a soil body is pressed to generate an upward lifting force as a slurry in the curtain walls is continuously increased and solidified
Implementation Method 2
a soil body is pressed to generate an upward lifting force
Data Source
AI summary
The present application relates to a precise lifting method and a lifting and reinforcing structure for a plant equipment foundation. The method includes the construction steps of: forming a curtain wall: drilling downwards at two sides of the plant equipment to form curtain holes and grouting the curtain holes, in which the grouting areas overlap each other to form two parallel curtain walls; forming a reinforcing body: drilling grouting holes inclining downwards, grouting the grouting holes to form the reinforcing body attached to a lower surface of a baseplate of the plant equipment foundation among a bottom of the baseplate and two curtain walls; and lifting: drilling lifting holes obliquely downwards to below the bottom of the reinforcing body and between two curtain walls; and conducting pressure grouting to the bottom of the lifting holes and then backward grouting upwards layer by layer.