How are pipe piles connected?
Pile pipe connection means that since the length of a pile cannot reach the designed depth, it is necessary to connect the prefabricated piles one by one and continue driving downward until they are driven into the designed depth. The process of connecting the top of the driven pile to the lower end of the following pile.
When single-section piles are driven into the ground and have not reached the design depth, they need to be connected. The piles should generally be lengthened first and then shortened. Electrically welded piles are used to connect piles; in addition, there is also the phenomenon of pile cutting, because each pipe or pile allocation may not exactly meet the actual needs of the construction. Only through reasonable pipe or pile allocation can the cost be effectively saved.
Matching of pipe piles and piles:
The matching of pipe piles and pile foundations is mainly to improve the bearing capacity of the foundation and reduce deformation. Common matching methods include the following:
1. Resonance matching: According to the principle of optical resonance, when the length ratio of the pipe pile and the pile foundation approaches a specific value, the two may resonate, effectively improving the lateral resistance and bearing capacity of the pile. Resonance matching can achieve better results when the site conditions are appropriate.
2. Displacement matching: The tops of pipe piles and pile foundations are vertically matched with each other. The pile vibration can be converted into the bending moment and shear force of the pipe pile, which improves the mechanical performance and foundation bearing capacity of the pipe pile. Displacement matching is suitable for occasions with good soil stability and high earthquake resistance of the foundation.
3. Superposition and matching: The superposition and matching of pipe piles and pile foundations is the most common matching method. Pipe piles and pile foundations can jointly bear loads such as horizontal force, vertical force and bending moment. The superimposed combination is suitable for general foundation conditions and building structures.
Basis for pipe piles and pile foundations:
The main basis for pipe piles and pile foundations are as follows:
1. Pile foundation stress performance: Determine the pile foundation depth and pile type based on the stress conditions of the lower pile foundation, such as:
* Depth of pile foundation
* Pile diameter
* Pile section length, etc.
2. Pile type selection: Determine the pile type based on foundation conditions and building requirements, such as:
* Concrete pile
* Reinforced concrete piles
* Steel pipe pile
* Anchor pile
* Pile type sheet pile
* Cast-in-place piles, etc.
3. Pile depth design: Determine the pile foundation depth according to the building foundation conditions, such as:
* Surface water level
* Groundwater level
* Thickness of plastic soil layer
* Thickness of hard soil layer, etc.
4. Pile spacing design: Determine the pile spacing based on pile type selection and building structure analysis, such as:
* Pile spacing
* Pile height, etc.
5. Pile location design: Determine the pile location based on the building structural performance, such as:
* Pile position
*Pile width
* Pile height, etc.
6. Pile foundation support design: Determine the pile foundation support according to the building facade form and load conditions, such as:
* Depth of pile pier
* Width of pile pier
* Pile pier height, etc.
Issues that need to be paid attention to when matching pipe piles and piles
In actual projects, the following issues need to be considered when matching pipe piles and piles:
1. Soil layer stability: Different matching methods adapt to different soil layer stability, and the appropriate method needs to be selected according to the actual situation.
2. Building structure: The building structure also has certain requirements for the way of matching pipe piles and piles, and the mechanical performance of the structure needs to be comprehensively considered.
3. Professional technology: The process of matching pipe piles and piles requires professional and technical personnel to design and supervise to ensure construction quality and safety.
Conclusion:
The matching of pipe piles and pile foundations is an effective way to improve the bearing capacity of the foundation and reduce deformation. Different matching methods are suitable for different engineering situations and needs. When carrying out actual projects, various factors such as soil stability, building structure and professional technology need to be comprehensively considered to ensure matching effects and construction safety.
Read more: Steel Sheet Piles
Pile pipe connection means that since the length of a pile cannot reach the designed depth, it is necessary to connect the prefabricated piles one by one and continue driving downward until they are driven into the designed depth. The process of connecting the top of the driven pile to the lower end of the following pile.
When single-section piles are driven into the ground and have not reached the design depth, they need to be connected. The piles should generally be lengthened first and then shortened. Electrically welded piles are used to connect piles; in addition, there is also the phenomenon of pile cutting, because each pipe or pile allocation may not exactly meet the actual needs of the construction. Only through reasonable pipe or pile allocation can the cost be effectively saved.
Matching of pipe piles and piles:
The matching of pipe piles and pile foundations is mainly to improve the bearing capacity of the foundation and reduce deformation. Common matching methods include the following:
1. Resonance matching: According to the principle of optical resonance, when the length ratio of the pipe pile and the pile foundation approaches a specific value, the two may resonate, effectively improving the lateral resistance and bearing capacity of the pile. Resonance matching can achieve better results when the site conditions are appropriate.
2. Displacement matching: The tops of pipe piles and pile foundations are vertically matched with each other. The pile vibration can be converted into the bending moment and shear force of the pipe pile, which improves the mechanical performance and foundation bearing capacity of the pipe pile. Displacement matching is suitable for occasions with good soil stability and high earthquake resistance of the foundation.
3. Superposition and matching: The superposition and matching of pipe piles and pile foundations is the most common matching method. Pipe piles and pile foundations can jointly bear loads such as horizontal force, vertical force and bending moment. The superimposed combination is suitable for general foundation conditions and building structures.
Basis for pipe piles and pile foundations:
The main basis for pipe piles and pile foundations are as follows:
1. Pile foundation stress performance: Determine the pile foundation depth and pile type based on the stress conditions of the lower pile foundation, such as:
* Depth of pile foundation
* Pile diameter
* Pile section length, etc.
2. Pile type selection: Determine the pile type based on foundation conditions and building requirements, such as:
* Concrete pile
* Reinforced concrete piles
* Steel pipe pile
* Anchor pile
* Pile type sheet pile
* Cast-in-place piles, etc.
3. Pile depth design: Determine the pile foundation depth according to the building foundation conditions, such as:
* Surface water level
* Groundwater level
* Thickness of plastic soil layer
* Thickness of hard soil layer, etc.
4. Pile spacing design: Determine the pile spacing based on pile type selection and building structure analysis, such as:
* Pile spacing
* Pile height, etc.
5. Pile location design: Determine the pile location based on the building structural performance, such as:
* Pile position
*Pile width
* Pile height, etc.
6. Pile foundation support design: Determine the pile foundation support according to the building facade form and load conditions, such as:
* Depth of pile pier
* Width of pile pier
* Pile pier height, etc.
Issues that need to be paid attention to when matching pipe piles and piles
In actual projects, the following issues need to be considered when matching pipe piles and piles:
1. Soil layer stability: Different matching methods adapt to different soil layer stability, and the appropriate method needs to be selected according to the actual situation.
2. Building structure: The building structure also has certain requirements for the way of matching pipe piles and piles, and the mechanical performance of the structure needs to be comprehensively considered.
3. Professional technology: The process of matching pipe piles and piles requires professional and technical personnel to design and supervise to ensure construction quality and safety.
Conclusion:
The matching of pipe piles and pile foundations is an effective way to improve the bearing capacity of the foundation and reduce deformation. Different matching methods are suitable for different engineering situations and needs. When carrying out actual projects, various factors such as soil stability, building structure and professional technology need to be comprehensively considered to ensure matching effects and construction safety.
Read more: Steel Sheet Piles
