Weak Mineral Soil Compaction via Ground Pile Parameter Optimization
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Solution Overview
Problem
Existing methods for strengthening weak water-saturated clay soils for building foundations are inadequate, as they fail to achieve the required degree of soil compaction and often require additional operations due to lack of precise calculations for soil properties and compaction parameters.
Innovation Solution
A method involving preliminary engineering and geological surveys to determine optimal design parameters for ground pile compaction, including void ratio and liquidity index calculations, to achieve the desired modulus of deformation, with iterative adjustments to well expansion and spacing to ensure the actual average reduced modulus of deformation matches design values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional soil strengthening methods are used, then some compaction is achieved, but the required degree of soil strengthening for modern foundations cannot be reached
Solution Approach 1:
The patent applies parameter changes by systematically varying compaction parameters (well spacing, well diameter, compaction pressure, soil moisture content) based on mathematical models and laboratory tests. The method determines optimal parameter combinations to achieve the required soil strength modulus for modern foundation requirements, transforming weak soils into reliable foundation bases through controlled parameter adjustment.
2Strength
If additional soil compaction operations are performed to achieve design values, then soil strength improves, but productivity decreases and material consumption increases
Solution Approach 1:
The patent implements preliminary action by conducting comprehensive laboratory testing and mathematical modeling before field compaction operations. The method pre-determines optimal compaction parameters (well spacing, diameter, pressure) based on soil characteristics and design requirements, allowing single-pass compaction to achieve design strength values without requiring multiple corrective operations, thereby maximizing productivity.
Solution Approach 2:
The patent applies feedback principles by using mathematical models that incorporate soil test data to predict compaction outcomes and adjust parameters accordingly. The method continuously monitors and refines compaction parameters based on measured soil response, ensuring optimal efficiency and eliminating the need for additional compaction operations.
3Ease of manufacture
If traditional compaction methods are used without precise calculations, then compaction operations can be performed, but the number of wells and material consumption cannot be optimized
Solution Approach 1:
The patent applies segmentation by dividing the compaction process into distinct stages: laboratory soil testing, mathematical parameter optimization, field implementation, and verification. This systematic segmentation allows precise calculation of well spacing, diameter, and material requirements, optimizing material consumption while maintaining process simplicity through standardized procedures.
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 method increases the productivity and efficiency of soil compaction, reduces material consumption and labor intensity, and ensures the base is compacted to the required design specifications, enhancing the stability of building foundations.
Implementation Method 1
creation of a compacting effect on the compacting material by the hollow tubular working tool to form a ground pile
Data Source
AI summary
Methods for strengthening soils under bases and foundations of buildings and structures with compaction of the base composed of weak mineral soils by determining the optimal design process parameters of the ground piles over the entire area of the base. The essence of the invention is that the method of compaction of bases composed of weak mineral soils that includes formation of a well, filling each well with the compacting material, and creation of a compacting effect on the compacting material by the hollow tubular working tool to form a ground pile. Preliminary engineering and geological surveys of the base area is performed to determine the values of the modulus of deformation, the Poisson's ratio, the internal friction angle, the specific cohesion, the specific gravity, and the initial void ratio of the weak mineral soil.