Settlement driving control structure and method for forced-settlement rectification
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Solution Overview
Problem
Conventional soil excavation methods for building inclination rectification fail to effectively drive vertical settlement in low-rise buildings and can lead to sudden subsidence and deformation in high-rise buildings, resulting in structural damage and instability.
Innovation Solution
A settlement driving control structure involving a vertical hole, anchor bolt, grouting pipes, and waterstop rubber rings, reinforced with micro-expansive early-strength concrete, to form a mini pile, allowing controlled tensioning and grouting to stabilize the building foundation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If soil excavation method is used for inclination rectification, then the construction period is shortened and implementation is simplified, but the building cannot effectively settle vertically to target position in low-rise buildings
Solution Approach 1:
The patent applies preliminary action by pre-installing anchor bolts and grouting pipes into the raft foundation before soil excavation begins. The anchor bolts are positioned at predetermined locations to provide controlled settlement driving force, and grouting pipes are installed to create anchorage bodies that will later enable precise settlement control. This preliminary preparation allows the system to achieve both rapid construction and precise settlement control by having the settlement driving mechanism ready before the actual rectification work starts.
Solution Approach 2:
The patent uses an intermediary approach by introducing anchor bolts as mediator elements between the raft foundation and the settlement driving mechanism. These anchor bolts serve as intermediaries that transmit controlled forces from the tensioning device to the foundation, enabling precise settlement control. The grouting pipes act as intermediaries to create anchorage bodies that provide stable attachment points for the anchor bolts, facilitating controlled force transmission without direct soil excavation.
2Ease of manufacture
If soil excavation method is used for inclination rectification, then implementation is simplified, but sudden subsidence occurs in high-rise buildings causing structural damage
Solution Approach 1:
The patent applies preliminary action by pre-installing anchor bolts and grouting pipes into the raft foundation before soil excavation begins. The anchor bolts are positioned at predetermined locations to provide controlled settlement driving force, and grouting pipes are installed to create anchorage bodies that will later enable precise settlement control. This preliminary preparation allows the system to achieve both rapid construction and precise settlement control by having the settlement driving mechanism ready before the actual rectification work starts.
Solution Approach 2:
The patent uses an intermediary approach by introducing anchor bolts as mediator elements between the raft foundation and the settlement driving mechanism. These anchor bolts serve as intermediaries that transmit controlled forces from the tensioning device to the foundation, enabling precise settlement control. The grouting pipes act as intermediaries to create anchorage bodies that provide stable attachment points for the anchor bolts, facilitating controlled force transmission without direct soil excavation.
3Manufacturing precision
If soil excavation is completed for inclination rectification, then rectification is achieved, but settlement deformation stabilizes after internal stress adjustment which is not conducive to consolidating results
Solution Approach 1:
The patent applies continuity of useful action by maintaining the anchor bolt system in place after soil excavation and continuing to apply controlled settlement driving forces through the tensioning device. Rather than stopping after initial rectification, the system continuously adjusts and stabilizes the settlement process by controlling the release and tensioning of anchor bolts, ensuring that internal stresses are gradually adjusted and settlement deformation stabilizes in a controlled manner that consolidates rectification results.
Solution Approach 2:
The patent implements feedback control by monitoring settlement deformation during and after soil excavation, and using this information to adjust the tensioning device and anchor bolt system accordingly. The controlled release and tensioning of anchor bolts is based on real-time settlement measurements, allowing the system to feedback-adjust the settlement driving forces to achieve stable consolidation of rectification results.
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
The solution ensures stable and quick settlement of buildings, preventing sudden subsidence and excessive inclination, enhancing structural stability and consolidating rectification results.
Implementation Method 1
micro-expansive early-strength concrete is filled above the anchorage body to reinforce the vertical hole to form a mini pile
Implementation Method 2
two grouting pipes extending along the anchor bolt and configured for grouting to form an anchorage body at the bottom of the vertical hole
Data Source
AI summary
A settlement driving control structure for forced-settlement rectification and a settlement driving control method for forced-settlement rectification are provided. The settlement driving control structure includes: a vertical hole is formed in a raft of a building, a lower end of an anchor bolt is anchored at the bottom of the vertical hole and the other end of the anchor bolt extends out of the vertical hole to be connected to a tensioning device, two grouting pipes are configured for grouting to form an anchorage body, and two waterstop rubber rings are spaced apart on a position of the anchor bolt above the anchorage body. For a building with a great load on the upper part, a building foundation and a deep stable stratum are connected as a whole by stress application through the device.