A building construction pile foundation structure
Through the adaptive adjustment and dynamic buffering of intelligent pile foundation structures, the problems of uneven settlement and impact loads of traditional pile foundations under complex geological conditions are solved, thereby improving the stability and seismic performance of buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI QIONGQU CONSTR ENG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional pile foundation structures cannot monitor their status in real time and make dynamic adaptive adjustments under complex geological conditions, which makes it difficult to effectively buffer uneven settlement and impact loads, and easily leads to building tilting and irreversible damage.
The intelligent pile foundation structure, composed of high-strength concrete core piles, annular hydraulic compensation sleeves, deformable alloy friction wing plates, distributed fiber optic strain sensors, and hydraulic control units, achieves adaptive compensation and dynamic buffering through real-time data interaction and algorithm control.
It effectively reduces the risk of cracking caused by differential settlement, improves the stability of building foundations and their resistance to uplift and lateral displacement, and significantly enhances seismic performance under complex geological conditions.
Smart Images
Figure CN224495188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and more specifically, to a pile foundation structure for building construction. Background Technology
[0002] In the field of housing construction, pile foundations, as a key load-bearing component of building structures, directly affect the safety and durability of buildings. Traditional pile foundation structures often face problems such as uneven settlement and difficulty in effectively buffering impact loads under complex geological conditions. Uneven settlement can lead to building tilting and wall cracking; while impact loads such as earthquakes and mechanical vibrations can easily cause irreversible damage to pile foundations. Although existing technologies are constantly improving, there are still significant technological gaps in real-time monitoring of pile foundation conditions and achieving dynamic adaptive adjustment.
[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Most devices employ a fixed stiffness design (such as precast concrete piles and steel piles), which cannot dynamically adjust the load according to foundation settlement. This can easily lead to building tilting and structural cracking when encountering uneven settlement. Some pile foundations using grouting compensation require manual intervention, resulting in delayed response and low adjustment accuracy, making it difficult to cope with sudden or continuous settlement changes (such as soft soil creep and groundwater loss).
[0004] Therefore, a pile foundation structure for building construction is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pile foundation structure for building construction to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a pile foundation structure for building construction, comprising: a high-strength concrete core pile body penetrating the foundation, wherein an annular hydraulic compensation sleeve is coaxially sleeved on the upper section of the high-strength concrete core pile body, which has an independent pressure zone inside, and deformable alloy friction wing plates are radially penetrating the upper, middle and lower parts of the high-strength concrete core pile body, having a ground-responsive opening and closing structure.
[0007] The bottom of the high-strength concrete core pile is fixedly installed with a conical energy dissipation base containing non-Newtonian fluid material.
[0008] Preferably, the annular hydraulic compensation sleeve has no fewer than four partitions, each partition being separated by a flexible diaphragm to form an independent chamber. The annular hydraulic compensation sleeve has no fewer than four independent pressure partitions, which transmit pressure through hydraulic oil to adaptively compensate for uneven settlement of the foundation and alleviate local stress concentration in the pile.
[0009] Preferably, the deformable alloy friction wing plate is made of shape memory alloy and automatically unfolds into a 120° fan-shaped plate when the contact pressure with the rock layer exceeds a predetermined threshold.
[0010] Preferably, a distributed fiber optic strain sensor is provided on one side of the high-strength concrete core pile, and the distributed fiber optic strain sensor and the high-strength concrete core pile are integrated by co-casting.
[0011] Preferably, a hydraulic control unit is provided at the bottom of the annular hydraulic compensation sleeve. The hydraulic control unit has a built-in artificial intelligence algorithm to predict the pressure adjustment scheme based on historical settlement data.
[0012] Preferably, the sidewall of the conical energy dissipation base has radial damping channels, and the channels are filled with shear-thickening composite material.
[0013] Preferably, it also includes a miniature pressure sensor pre-embedded in the annular hydraulic compensation sleeve to provide real-time feedback of hydraulic oil pressure to the control unit.
[0014] Preferably, distributed fiber optic strain sensors are embedded simultaneously during the pouring of the high-strength concrete core pile, and the annular hydraulic compensation sleeve is installed by high-pressure jet grouting after the high-strength concrete core pile reaches the required strength.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] 1. Compared with existing technologies, this new pile foundation structure for building construction utilizes components such as a ring-shaped hydraulic compensation sleeve, a high-strength concrete core pile, a hydraulic control unit, and miniature pressure sensors. Through real-time data interaction between the miniature pressure sensors and the hydraulic control unit, and the coordinated control of independent pressure zones between the hydraulic control unit and the ring-shaped hydraulic compensation sleeve, the hydraulic control unit can analyze historical settlement data using built-in algorithms to dynamically predict and precisely adjust the hydraulic oil pressure in each zone. This achieves the effect of adaptively adjusting the stress distribution of the pile body caused by uneven foundation settlement through a multi-zone independent compensation mechanism, effectively reducing the risk of cracking in the superstructure due to differential settlement and improving the overall stability of the building foundation.
[0017] 2. Compared with existing technologies, this new pile foundation structure for building construction utilizes components such as deformable alloy friction wing plates, distributed fiber optic strain sensors, and a conical energy dissipation base. Through real-time monitoring of the strain across the entire pile section by the distributed fiber optic strain sensors, and the responsive interaction between the deformable alloy friction wing plates and the ground pressure, the friction wing plates, made of shape memory alloy, can automatically expand into a 120° fan-shaped plate in areas where the contact pressure with the rock strata exceeds a predetermined value, thereby increasing frictional resistance. Combined with the synergistic energy dissipation effect of the non-Newtonian fluid and the shear-thickening material within the conical energy dissipation base, this device achieves efficient bearing and dynamic buffering of complex geological loads and seismic loads through intelligent friction enhancement and vibration energy dissipation. This significantly improves the pile foundation's pull-out resistance, lateral displacement resistance, and seismic performance in high-intensity earthquake zones and easily settled foundations. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial structural schematic diagram of the present invention;
[0020] Figure 3 This is a schematic diagram of the main structure of the distributed optical fiber strain sensor of this utility model;
[0021] Figure 4 This is a schematic diagram of the main structure of the annular hydraulic compensation sleeve of this utility model;
[0022] The attached figures are labeled as follows: 101, high-strength concrete core pile; 201, annular hydraulic compensation sleeve; 301, deformable alloy friction wing plate; 401, distributed fiber optic strain sensor; 501, hydraulic control unit; 601, conical energy dissipation base. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] As attached Figure 1 and Figure 4As shown, a pile foundation structure for building construction includes: a high-strength concrete core pile 101 penetrating the foundation; distributed fiber optic strain sensors 401 are simultaneously embedded during the pouring of the high-strength concrete core pile 101 to achieve real-time strain monitoring and structural health assessment of the entire pile. An annular hydraulic compensation sleeve 201 is installed via high-pressure jet grouting after the high-strength concrete core pile 101 reaches the required strength, forming a tightly fitting dynamic adjustment interface that can adaptively adjust the hydraulic pressure of each zone according to differences in ground settlement. The annular hydraulic compensation sleeve 201 is coaxially sleeved on the upper section of the high-strength concrete core pile 101, which has independent pressure zones. A flexible diaphragm isolates these zones to achieve differentiated pressure control across multiple areas, effectively balancing stress concentration caused by uneven settlement. Deformable alloy friction wing plates 301 are radially penetrating the upper, middle, and lower parts of the high-strength concrete core pile 101, featuring a ground-responsive opening and closing structure. These wing plates can automatically adjust their deployment angle according to the lateral pressure of soil and rock at different depths, enhancing pile-soil interaction.
[0025] like Figure 1 As shown, a conical energy dissipation base 601 is fixedly installed at the bottom of the high-strength concrete core pile 101. This base contains a non-Newtonian fluid material that rapidly hardens under impact loads using a shear thickening effect, absorbing and dissipating seismic or mechanical vibration energy. The sidewalls of the conical energy dissipation base 601 have radial damping channels filled with a shear thickening composite material. Multi-level damping control is achieved through dynamic viscosity changes in the material, thereby improving the impact resistance of the pile foundation.
[0026] like Figure 1 and 4 As shown, the annular hydraulic compensation sleeve 201 has no fewer than four partitions, each partition forming an independent chamber separated by a flexible diaphragm. Combined with pre-embedded miniature pressure sensors, it collects hydraulic oil pressure data in real time and transmits it to the hydraulic control unit 501, achieving dynamic pressure closed-loop control. It also includes miniature pressure sensors pre-embedded within the annular hydraulic compensation sleeve 201, which provide real-time feedback of hydraulic oil pressure to the hydraulic control unit 501. Combined with historical settlement data, a predictive model is constructed to optimize the pressure regulation strategy in advance.
[0027] like Figure 1 and 2 As shown, the deformable alloy friction wing plate 301 is made of shape memory alloy. When the contact pressure with the rock strata exceeds a predetermined threshold, it automatically unfolds into a 120° fan-shaped plate, thereby increasing the pile side friction and pull-out resistance, and improving the bearing stability of the pile foundation in complex strata. Its stratum-responsive opening and closing structure can dynamically adjust the shape of the wing plate according to different geological conditions, realizing the coordinated deformation of the pile foundation and the surrounding rock and soil.
[0028] like Figure 1 and 2As shown, a distributed fiber optic strain sensor 401 is installed on one side of the high-strength concrete core pile 101. The distributed fiber optic strain sensor 401 and the high-strength concrete core pile 101 are integrated by co-casting, ensuring that the sensor deforms synchronously with the pile, achieving high-precision, fully distributed strain monitoring. This system can generate the pile strain distribution curve in real time, providing reliable data support for structural safety assessment.
[0029] like Figure 2 and 4 As shown, a hydraulic control unit 501 is installed at the bottom of the annular hydraulic compensation sleeve 201. The hydraulic control unit 501 incorporates an artificial intelligence algorithm to predict pressure adjustment schemes based on historical settlement data and dynamically optimizes hydraulic zone pressure by combining real-time monitoring data, thereby achieving intelligent adaptive compensation for pile foundation settlement. Its closed-loop control system can quickly respond to changes in strata, ensuring that the pile foundation maintains stable bearing capacity during long-term service.
[0030] Example
[0031] Multi-story residential buildings on soft soil foundations
[0032] In a soft soil foundation area in southern China, a number of six-story residential communities are planned for construction. The area consists of deep silty clay soil below the surface, which has low bearing capacity, high compressibility, and is prone to uneven settlement, thus requiring high stability and adaptability of the pile foundations.
[0033] In the initial stage of construction, a foundation survey was conducted to determine the pile foundation layout. Pile foundation construction then commenced, starting with the pouring of high-strength concrete core piles 101. During pouring, distributed fiber optic strain sensors 401 were simultaneously embedded. These sensors, integrated with the high-strength concrete core piles 101 through a co-casting process, enable real-time monitoring of the pile's strain at various stages. After the high-strength concrete core piles 101 reached the required strength, an annular hydraulic compensation sleeve 201 was installed using a high-pressure jet grouting method. This sleeve fits onto the upper section of the high-strength concrete core piles 101, and its interior is divided into at least four independent pressure zones by flexible diaphragms. Simultaneously, a hydraulic control unit 501 was installed at the bottom of the annular hydraulic compensation sleeve 201. This unit incorporates artificial intelligence algorithms and incorporates miniature pressure sensors embedded within the annular hydraulic compensation sleeve 201 to provide real-time feedback of hydraulic oil pressure to the hydraulic control unit 501. Furthermore, the deformable alloy friction wing plates 301, which are radially penetrating the upper, middle, and lower parts of the high-strength concrete core pile 101, are made of shape memory alloy and are in their initial contracted state. The conical energy dissipation base 601, which is fixedly installed at the bottom of the pile, has radial damping channels on its sidewalls filled with shear-thickening composite material and contains non-Newtonian fluid material to prepare for subsequent load bearing.
[0034] When the residential building reached the third floor, due to the characteristics of the soft soil foundation, slight uneven settlement occurred in some areas where the pile foundations were located. At this time, the miniature pressure sensor embedded in the annular hydraulic compensation sleeve 201 detected the changes in hydraulic oil pressure in the corresponding zone in real time and fed the data back to the hydraulic control unit 501. The hydraulic control unit 501 used its built-in artificial intelligence algorithm, combined with previously accumulated historical settlement data, to quickly predict a suitable pressure adjustment scheme. Then, the hydraulic control unit 501 controlled the hydraulic system of the corresponding zone to adjust the pressure. By injecting or withdrawing hydraulic oil into the independent chamber of that zone, the annular hydraulic compensation sleeve 201 underwent corresponding expansion and contraction deformation in that zone, thereby compensating for the settlement of the pile foundation. Meanwhile, as the foundation settles, the interaction between the high-strength concrete core pile 101 and the surrounding strata changes. When the contact pressure of the rock strata at the location of the deformable alloy friction wing plate 301 exceeds a predetermined threshold, the deformable alloy friction wing plate 301, made of shape memory alloy, automatically unfolds into a 120° fan-shaped plate, increasing the contact area with the surrounding strata, enhancing the friction between the pile and the strata, and further stabilizing the pile foundation. Meanwhile, when the pile is affected by settlement, the non-Newtonian fluid material at the bottom of the conical energy dissipation base 601 can adjust its state according to stress changes, absorbing and dissipating the energy generated by settlement, reducing additional deformation of the pile. The distributed fiber optic strain sensor 401 continuously monitors the strain of the pile and transmits the data to the monitoring system in real time, allowing construction personnel to promptly grasp the working status of the pile foundation, ensuring the stability of the pile foundation during residential construction, and effectively reducing the impact of uneven settlement of soft soil foundations on the building structure.
[0035] The implementation principle of this utility model for a pile foundation structure for building construction is as follows:
[0036] First, the distributed fiber optic strain sensor 401 is co-cast and integrated with the high-strength concrete core pile 101 to collect strain data of the upper, middle and lower parts of the pile under load in real time, and transmit it to the hydraulic control unit 501 through fiber optics to provide real-time basic data for pile foundation stress state assessment.
[0037] Secondly, the miniature pressure sensor of the annular hydraulic compensation sleeve 201 provides real-time feedback on the hydraulic oil pressure of each independent zone. The hydraulic control unit 501 analyzes historical settlement data and current strain signals based on the built-in algorithm, predicts the settlement trend of each zone, actively adjusts the hydraulic oil pressure of the corresponding chamber, and drives the sleeve to expand and contract through the flexible diaphragm to dynamically compensate for the pile stress difference caused by uneven settlement of the foundation.
[0038] Next, when the rock pressure in contact with the deformable alloy friction wing plate 301 exceeds a predetermined threshold, the shape memory alloy triggers a phase transition due to stress / temperature changes, automatically unfolding into a 120° fan-shaped plate, increasing the contact area and frictional resistance between the pile and the surrounding strata, and enhancing the bearing capacity of the pile foundation under horizontal loads or pull-out conditions in real time.
[0039] Next, when external loads such as earthquakes are transmitted to the bottom of the pile, the viscosity of the non-Newtonian fluid material in the conical energy dissipation base 601 increases sharply with the increase of stress. Combined with the shear thickening composite material in the damping channel of the side wall, the vibration energy is absorbed through viscous damping and shear deformation, and the kinetic energy is converted into heat energy dissipation, reducing the transmission of pile vibration to the superstructure.
[0040] Finally, distributed fiber optic sensing, hydraulic compensation, friction wing plate, energy dissipation and other modules form a closed-loop control system through data interaction. The hydraulic control unit 501 integrates real-time data of the entire system and dynamically optimizes the pressure regulation strategy and wing plate trigger threshold, so that the pile foundation structure is upgraded from "passive bearing" to "active adaptation", realizing intelligent response to complex geological loads under all working conditions.
[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A pile foundation structure for building construction, characterized in that, include: A high-strength concrete core pile (101) penetrates the foundation. The upper section of the high-strength concrete core pile (101) is coaxially sleeved with an annular hydraulic compensation sleeve (201), which has an independent pressure zone. The upper, middle and lower parts of the high-strength concrete core pile (101) are radially penetrated by deformable alloy friction wing plates (301), which have a stratum-responsive opening and closing structure. The bottom of the high-strength concrete core pile (101) is fixedly installed with a conical energy dissipation base (601) containing non-Newtonian fluid material.
2. The pile foundation structure for building construction according to claim 1, characterized in that: The annular hydraulic compensation sleeve (201) has no fewer than four partitions, and each partition is separated by a flexible diaphragm to form an independent chamber.
3. The pile foundation structure for building construction according to claim 1, characterized in that: The deformable alloy friction wing plate (301) is made of shape memory alloy and automatically unfolds into a 120° fan-shaped plate when the contact pressure with the rock layer exceeds a predetermined threshold.
4. A pile foundation structure for building construction according to claim 1, characterized in that: A distributed fiber optic strain sensor (401) is provided on one side of the high-strength concrete core pile (101), and the distributed fiber optic strain sensor (401) and the high-strength concrete core pile (101) are integrated by co-casting.
5. A pile foundation structure for building construction according to claim 1, characterized in that: The bottom of the annular hydraulic compensation sleeve (201) is provided with a hydraulic control unit (501), which has a built-in artificial intelligence algorithm to predict the pressure adjustment scheme based on historical settlement data.
6. A pile foundation structure for building construction according to claim 1, characterized in that: The conical energy dissipation base (601) has radial damping channels on its sidewalls, and the channels are filled with shear-thickening composite material.
7. A pile foundation structure for building construction according to claim 1, characterized in that: It also includes a miniature pressure sensor embedded in the annular hydraulic compensation sleeve (201) to provide real-time feedback of hydraulic oil pressure to the control unit.
8. A pile foundation structure for building construction according to claim 1, characterized in that: Distributed fiber optic strain sensors (401) are embedded simultaneously during the pouring of the high-strength concrete core pile (101). The annular hydraulic compensation sleeve (201) is installed by high-pressure jet grouting after the high-strength concrete core pile (101) reaches the required strength.