In-Situ Subsoil Compaction Beneath Buildings With Drilling and Mixing
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Solution Overview
Problem
Traditional methods for modifying subsoil under residential buildings to meet static requirements are invasive, time-consuming, costly, and environmentally harmful, leading to construction delays and economic risks.
Innovation Solution
A method of subsoil compaction using local natural materials, such as gravel and clay, combined with cement, to create a compacted and durable subsoil layer beneath buildings, avoiding extensive excavation and processing of unusable materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional invasive methods are used to modify subsoil, then subsoil resistance requirements are met, but construction time increases and economic risks arise
Solution Approach 1:
The patent replaces traditional mechanical excavation and replacement systems with a chemical/physical in-situ treatment system. A fluid composition is injected into the subsoil to modify its properties directly where needed, eliminating the need for extensive mechanical excavation and material removal/replacement operations.
Solution Approach 2:
The patent introduces a fluid composition as an intermediary substance that mediates between the existing subsoil and the desired improved subsoil properties. This fluid composition chemically or physically interacts with the subsoil to achieve the required resistance without requiring complete removal and replacement of the material.
2Reliability
If traditional invasive methods are used to modify subsoil, then subsoil resistance requirements are met, but construction costs increase
Solution Approach 1:
The patent replaces costly mechanical excavation, material removal, and replacement operations with a more economical in-situ treatment method using injected fluid composition, reducing overall construction costs while achieving the same subsoil resistance requirements.
Solution Approach 2:
The patent enables the subsoil to improve its own properties through the injected fluid composition, eliminating the need for expensive external material imports and the labor-intensive processes of removal, replacement, and compaction associated with traditional methods.
3Reliability
If traditional invasive methods are used to modify subsoil, then building foundation requirements are met, but environmental burden increases
Solution Approach 1:
The patent replaces mechanically invasive excavation and material removal processes with a minimally invasive fluid injection method, significantly reducing environmental disruption, waste generation, and ecological impact while still achieving the required building foundation stability.
Solution Approach 2:
The patent extracts only the essential function of subsoil improvement without the harmful side effects of traditional methods. By injecting fluid composition in-situ, it achieves foundation requirements while leaving the surrounding environment undisturbed and avoiding the waste and pollution associated with extensive excavation.
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 is time-efficient, cost-effective, and environmentally friendly, improving subsoil conditions while ensuring building stability and reducing the need for additional pumping systems and excavation, thus simplifying the construction process.
Implementation Method 1
drilling and mixing the individual soil layer underneath the foundation with adding of compaction material (i. e. cement) or by mixing-up with the gravel from the excavated soil
Implementation Method 2
compaction of the subsoil under the specific building
Data Source
Figure 1~6
AI summary
The subject of technical solution is method of subsoil compaction of buildings, which is realised through the drilling and mixing of individual soil layers underneath the building foundation with the gradual addition of compaction building material.