A spatial deformation measurement system for discontinuous caisson foundations

Abstract

The application provides a discontinuous caisson foundation space deformation measuring system, relates to the technical field of caisson foundation space deformation measurement, and comprises a magnetic displacement meter, a wireless composite sensor and a cloud platform. The magnetic displacement meter for the first caisson foundation is connected with a permanent building structure, and the magnetic displacement meters are also connected between the remaining caisson foundations. The wireless composite sensor is arranged on each caisson foundation. An intelligent detection terminal acquires the data of the magnetic displacement meter and the wireless composite sensor in real time. After the data is transmitted to the platform, the change conditions of each caisson foundation in space can be monitored in real time according to calculation. The underwater discontinuous caisson foundation space deformation is monitored in real time, the abnormal space deformation of the caisson foundation cannot be known, and the safety of the whole process construction of the upper structure is ensured.

Description

Technical Field

[0001] The present invention relates to the field of spatial deformation measurement of caisson foundation technology, and in particular to a discontinuous caisson foundation spatial deformation measurement system. Background Art

[0002] Caisson foundations, used on the seashore and for revetments, are a crucial infrastructure for offshore projects. Through their substantial weight and large contact area, caisson foundations provide support, bearing the weight of the structures and equipment above them. They provide a stable foundation for buildings, docks, bridges, offshore wind turbines, and other structures, ensuring their safe placement in offshore environments.

[0003] The settlement and horizontal displacement of a caisson foundation are directly related to the stability of the entire structure. Therefore, these values ​​can be used to assess foundation stability, guiding superstructure construction. This ensures that the caisson foundation is stable before proceeding with the superstructure, and monitors the displacement of the caisson foundation throughout the superstructure construction process to ensure project safety.

[0004] The level of automation in civil engineering is extremely low. Conventional projects often rely on manual monitoring, where personnel use total stations and levels to observe settlement. This monitoring method is subject to significant human error and is not only time-consuming and labor-intensive, but also ineffective for observing caisson foundations located underwater for extended periods, such as those near the seashore or on revetments. In the emerging field of automated monitoring, static levels are used for settlement monitoring. These levels operate based on the "connecting pipe" principle, but they are large and difficult to install on structural components such as rails and switches. They are also easily affected by the superstructure, and underwater operations can also result in equipment malfunctioning due to water ingress and damage to connecting pipes.

[0005] In view of this, this application is filed. Summary of the Invention

[0006] The present invention provides a discontinuous caisson foundation spatial deformation measurement system, which can at least partially improve the above-mentioned problem.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A discontinuous caisson foundation spatial deformation measurement system includes: a cloud platform, a magnetic displacement meter assembly, and a wireless composite sensor assembly, wherein a permanent building structure and multiple caisson foundations are connected using the magnetic displacement meter assembly, and the wireless composite sensor assembly is configured on the caisson foundation;

[0009] The cloud platform is configured to implement the following steps by executing a computer program stored therein:

[0010] Obtaining the vertical relative displacement and the horizontal relative displacement of the caisson foundation collected by the magnetic displacement meter assembly;

[0011] Acquiring angle information collected by the wireless composite sensor assembly;

[0012] The spatial deformation calculation is performed on the vertical relative displacement, horizontal relative displacement and angle information according to a preset formula to generate a settlement value and a horizontal displacement value.

[0013] Preferably, the angle information includes angle data between the caisson foundation and the xy plane, xz plane and yz plane.

[0014] Preferably, the preset formula is:

[0015]

[0016]

[0017] in, is the rightmost settlement value of the upper surface corresponding to the i-th caisson foundation, is the horizontal displacement value of the rightmost end of the lower surface corresponding to the i-th caisson foundation, is the rightmost settlement value of the upper surface corresponding to the i-1th caisson foundation, is the horizontal displacement value of the rightmost end of the lower surface corresponding to the i-1th caisson foundation, is the angle change between the upper surface of the ith caisson foundation and the xy plane, is the angle change between the ith caisson foundation and the yz plane, is the length of the i-th caisson foundation, is the vertical relative displacement obtained by the magnetic displacement meter connected to the left side of the upper surface of the i-th caisson foundation, is the horizontal relative displacement obtained by the magnetic displacement meter connected to the left side of the lower surface of the i-th caisson foundation.

[0018] Preferably, the magnetic displacement meter assembly includes the same number of first magnetic displacement meters and second magnetic displacement meters as the caisson foundations, the first magnetic displacement meters are arranged on the upper side of the first end surface of the caisson foundation, and the second magnetic displacement meters are arranged on the lower side of the first end surface of the caisson foundation, the first magnetic displacement meters are configured to collect the vertical relative displacement of the caisson foundation, and the second magnetic displacement meters are configured to collect the horizontal relative displacement of the caisson foundation.

[0019] Preferably, the first magnetostrictive displacement meter and the second magnetostrictive displacement meter are configured to detect relative deformation between two objects by changing the relative positions of the magnetic ring and the top sensor.

[0020] Preferably, the first end face of the caisson foundation is the other side facing away from the sea.

[0021] Preferably, the wireless composite sensor assembly includes the same number of wireless composite sensors as the caisson foundations, and the wireless composite sensors are arranged on the caisson foundations. The wireless composite sensors are configured to detect the angle changes between the top surface of the caisson foundation and the constructed coordinate axes xy plane, xz plane and yz plane.

[0022] Preferably, the permanent building structure is a building structure that is considered to be free from relative deformation and horizontal deformation after experiencing historical settlement for a preset time.

[0023] In summary, the system for measuring spatial deformation of discontinuous caisson foundations comprises a magnetic displacement meter, a wireless composite sensor, and a cloud platform. Caisson foundation No. 1 is connected to the permanent building structure using a magnetic displacement meter, and the remaining caisson foundations are also connected using magnetic displacement meters. Wireless composite sensors are deployed in each caisson foundation. An intelligent detection terminal acquires data from the magnetic displacement meters and wireless composite sensors in real time. This data is transmitted to the platform, and calculations are performed to monitor the spatial changes of each caisson foundation in real time. This system enables real-time monitoring of the spatial deformation of underwater discontinuous caisson foundations, preventing the undetected occurrence of abnormal spatial deformation in the caisson foundations and ensuring the safety of the entire superstructure construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a schematic diagram of a spatial rectangular coordinate system of a discontinuous caisson foundation spatial deformation measurement system provided by an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the installation of a magnetic displacement meter in a discontinuous caisson foundation spatial deformation measurement system provided by an embodiment of the present invention;

[0026] Figure 3 This is a front view of the on-site arrangement of a discontinuous caisson foundation spatial deformation measurement system for measuring only settlement values ​​provided by an embodiment of the present invention;

[0027] Figure 4 This is a top view of the on-site arrangement of a discontinuous caisson foundation spatial deformation measurement system for measuring only settlement values ​​provided by an embodiment of the present invention;

[0028] Figure 5 This is a top view of the on-site arrangement of a discontinuous caisson foundation spatial deformation measurement system for measuring only horizontal displacement values ​​provided by an embodiment of the present invention;

[0029] Figure 6 It is a front view of the on-site arrangement of a discontinuous caisson foundation spatial deformation measurement system for measuring only horizontal displacement values ​​provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] refer to Figures 1 to 6 As shown, the first embodiment of the present invention discloses a discontinuous caisson foundation spatial deformation measurement system, which includes: a cloud platform, a magnetic displacement meter assembly, and a wireless composite sensor assembly, wherein the permanent building structure and multiple caisson foundations are connected using the magnetic displacement meter assembly, and the wireless composite sensor assembly is configured on the caisson foundation;

[0032] The cloud platform is configured to implement the following steps by executing a computer program stored therein:

[0033] Obtaining the vertical relative displacement and the horizontal relative displacement of the caisson foundation collected by the magnetic displacement meter assembly;

[0034] Acquiring angle information collected by the wireless composite sensor assembly;

[0035] The spatial deformation calculation is performed on the vertical relative displacement, horizontal relative displacement and angle information according to a preset formula to generate a settlement value and a horizontal displacement value.

[0036] Preferably, the angle information includes angle data between the caisson foundation and the xy plane, xz plane and yz plane.

[0037] Preferably, the magnetic displacement meter assembly includes the same number of first magnetic displacement meters and second magnetic displacement meters as the caisson foundations, the first magnetic displacement meters are arranged on the upper side of the first end surface of the caisson foundation, and the second magnetic displacement meters are arranged on the lower side of the first end surface of the caisson foundation, the first magnetic displacement meters are configured to collect the vertical relative displacement of the caisson foundation, and the second magnetic displacement meters are configured to collect the horizontal relative displacement of the caisson foundation.

[0038] Preferably, the first magnetostrictive displacement meter and the second magnetostrictive displacement meter are configured to detect relative deformation between two objects through a relative position change between the magnetic ring 1 and the top sensor 2 .

[0039] Preferably, the first end face of the caisson foundation is the other side facing away from the sea.

[0040] Preferably, the wireless composite sensor assembly includes the same number of wireless composite sensors as the caisson foundations, and the wireless composite sensors are arranged on the caisson foundations. The wireless composite sensors are configured to detect the angle changes between the top surface of the caisson foundation and the constructed coordinate axes xy plane, xz plane and yz plane.

[0041] Preferably, the permanent building structure is a building structure that is considered to be free from relative deformation and horizontal deformation after experiencing historical settlement for a preset time.

[0042] See also Figure 1 In this embodiment, the foundation of caisson No. 1 is connected to the permanent building structure using a magnetic displacement meter. The remaining caisson foundations are also connected using magnetic displacement meters. Wireless composite sensors are deployed in each caisson foundation. The intelligent detection terminal acquires data from the magnetic displacement meters and wireless composite sensors in real time and transmits the data to the platform.

[0043] Specifically, a spatial rectangular coordinate system is established with the midpoint of the side of the permanent building structure near the caisson foundation as the origin. Each structure is connected via a magnetic displacement meter, which measures the relative displacement between two connected points. The caisson foundation is equipped with a wireless composite sensor, calibrated to an initial value of 0° during installation. The intelligent detection terminal monitors the angles between the caisson foundation and the xy, xz, and yz planes, as well as the magnetic displacement meter values, in real time and transmits the data to the platform. This effectively addresses the existing problem of being unable to monitor the spatial deformation of discontinuous caisson foundations in real time, and solves the problem of being unable to determine the spatial deformation of the caisson foundation during the entire construction process of the caisson foundation superstructure, ensuring the safety of construction and building.

[0044] Among them, the permanent building structure is considered to be a building structure that will not experience relative deformation and horizontal deformation after experiencing a certain period of historical settlement. The magnetostrictive displacement meter measures the relative deformation between two objects through the relative position change of the magnetic ring 1 and the top sensor 2 (the magnetic ring 1 is relatively large in actual engineering applications, and the lateral deformation will not be destroyed). The caisson foundation is a reinforced concrete structure. The wireless composite sensor can measure the angular change between the top surface of the caisson foundation and the constructed coordinate axes xy plane, xz plane and yz plane. The magnetostrictive displacement meter and the wireless composite sensor are arranged on the other side away from the sea and cannot be arranged close to the middle (it will affect the sensor when the upper structure is cast).

[0045] Preferably, the preset formula is:

[0046]

[0047]

[0048] in, is the rightmost settlement value of the upper surface corresponding to the i-th caisson foundation, is the horizontal displacement value of the rightmost end of the lower surface corresponding to the i-th caisson foundation, is the rightmost settlement value of the upper surface corresponding to the i-1th caisson foundation, is the horizontal displacement value of the rightmost end of the lower surface corresponding to the i-1th caisson foundation, is the angle change of the upper surface of the i-th caisson foundation with the xy plane, is the angle change of the i-th caisson foundation with the yz plane, is the length of the i-th caisson foundation, is the vertical direction relative displacement of the left side of the upper surface of the i-th caisson foundation obtained by the magnetic displacement gauge, is the horizontal direction relative displacement of the left side of the lower surface of the i-th caisson foundation obtained by the magnetic displacement gauge.

[0049] In the embodiment, because the caisson foundation is a rigid body, the surface does not deform, and each surface remains in a planar state, so the rotation of the upper surface can obtain the rotation of the entire caisson foundation in space, and adding the final calculated settlement and horizontal displacement can obtain the change of each caisson foundation in space. According to the real-time data transmitted to the platform, the spatial deformation of each caisson foundation can be calculated. Among them, the main calculation is the rightmost settlement value of each caisson foundation and the rightmost horizontal displacement value ; the specific formula is: and , is the rightmost settlement value of the i-th caisson foundation, is the rightmost horizontal displacement value. The angles of the caisson foundation with the xy plane, the xz plane and the yz plane are monitored in real time, and the displacement values of the magnetic displacement gauges are monitored in real time. Because the caisson foundation is a rigid body, the surface does not deform, and each surface remains in a planar state, so the rotation of the upper surface can obtain the rotation of the entire caisson foundation in space, and adding the final calculated settlement and horizontal displacement can obtain the change of each caisson foundation in space. According to the real-time data transmitted to the platform, the spatial deformation of each caisson foundation can be calculated. The angles of the i-th caisson foundation with the xy plane, the xz plane and the yz plane are respectively denoted as , and , the length, width and height of each caisson foundation are respectively denoted as , and , the vertical direction relative displacement of the left side of the caisson foundation obtained by the magnetic displacement gauge is denoted as , the vertical direction relative displacement of the right side of the caisson foundation obtained by the magnetic displacement gauge is denoted as . The horizontal direction relative displacement of the left side of the caisson foundation obtained by the magnetic displacement gauge is denoted as , and the horizontal direction relative displacement of the right side of the caisson foundation obtained by the magnetic displacement gauge is denoted as 1≤i≤n, n is the number of caisson foundations. The caisson foundation connected to the permanent building structure is the No. 1 caisson foundation, the one connected to the No. 1 caisson foundation is the No. 2 caisson foundation, and so on.

[0050] It's important to note that the transmitted data provides real-time spatial deformation of each caisson foundation. The calculation results are not limited to the settlement and horizontal displacement values ​​at the rightmost end of each caisson foundation. Because these two values ​​are representative, the formula above calculates and outputs these values ​​for each caisson foundation. Since the vertical direction of the caisson foundation is primarily based on settlement, for ease of calculation, vertical downward is considered positive, and angles are considered counterclockwise. There's more than one way to calculate length in a rectangular coordinate system; other side lengths and angles can also be used.

[0051] In summary, the system for measuring spatial deformation of discontinuous caisson foundations comprises a magnetic displacement meter, a wireless composite sensor, and a cloud platform. Caisson foundation No. 1 is connected to the permanent building structure using a magnetic displacement meter, and the remaining caisson foundations are also connected using magnetic displacement meters. Wireless composite sensors are deployed in each caisson foundation. An intelligent detection terminal acquires data from the magnetic displacement meters and wireless composite sensors in real time. This data is transmitted to the platform, and calculations are performed to monitor the spatial changes of each caisson foundation in real time. This system enables real-time monitoring of the spatial deformation of underwater discontinuous caisson foundations, preventing the undetected occurrence of abnormal spatial deformation in the caisson foundations and ensuring the safety of the entire superstructure construction process.

[0052] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A discontinuous caisson foundation spatial deformation measurement system, characterized in that: include: A cloud platform, a magnetic displacement meter assembly, and a wireless composite sensor assembly, wherein the permanent building structure and multiple caisson foundations are connected using the magnetic displacement meter assembly, and the wireless composite sensor assembly is configured on the caisson foundation; The cloud platform is configured to implement the following steps by executing a computer program stored therein: Obtaining the vertical relative displacement of the caisson foundation and the horizontal relative displacement of the caisson foundation collected by the magnetic displacement meter assembly; Acquiring angle information collected by the wireless composite sensor assembly; Performing spatial deformation calculation on the vertical relative displacement, horizontal relative displacement and angle information according to a preset formula to generate a settlement value and a horizontal displacement value; The preset formula is: in, is the rightmost settlement value of the upper surface corresponding to the i-th caisson foundation, is the horizontal displacement value of the rightmost end of the lower surface corresponding to the i-th caisson foundation, is the rightmost settlement value of the upper surface corresponding to the i-1th caisson foundation, is the horizontal displacement value of the rightmost end of the lower surface corresponding to the i-1th caisson foundation, is the angle change between the upper surface of the ith caisson foundation and the xy plane, is the angle change between the ith caisson foundation and the yz plane, is the length of the i-th caisson foundation, is the vertical relative displacement obtained by the magnetic displacement meter connected to the left side of the upper surface of the i-th caisson foundation, is the horizontal relative displacement obtained by the magnetic displacement meter connected to the left side of the lower surface of the i-th caisson foundation; The magnetic displacement meter assembly includes the same number of first magnetic displacement meters and second magnetic displacement meters as the caisson foundations. The first magnetic displacement meters are arranged on the upper side of the first end surface of the caisson foundation, and the second magnetic displacement meters are arranged on the lower side of the first end surface of the caisson foundation. The first magnetic displacement meters are configured to collect the vertical relative displacement of the caisson foundation, and the second magnetic displacement meters are configured to collect the horizontal relative displacement of the caisson foundation.

2. A discontinuous caisson foundation spatial deformation measurement system according to claim 1, characterized in that: The angle information includes angle data between the caisson foundation and the xy plane, the xz plane and the yz plane.

3. A discontinuous caisson foundation spatial deformation measurement system according to claim 1, characterized in that: The first and second magnetostrictive displacement meters are configured to detect relative deformation between two objects through a relative position change between the magnetic ring and the top sensor.

4. A discontinuous caisson foundation spatial deformation measurement system according to claim 1, characterized in that: The first end face of the caisson foundation is the other side facing away from the sea.

5. The discontinuous caisson foundation spatial deformation measurement system according to claim 1, characterized in that: The wireless composite sensor assembly includes the same number of wireless composite sensors as the caisson foundations. The wireless composite sensors are arranged on the caisson foundations and are configured to detect the angle changes between the top surface of the caisson foundation and the constructed coordinate axes xy, xz and yz planes.

6. The discontinuous caisson foundation spatial deformation measurement system according to claim 1, characterized in that: The permanent building structure is a building structure that is considered to be free from relative deformation and horizontal deformation after experiencing historical settlement for a preset time.

7. The discontinuous caisson foundation spatial deformation measurement system according to claim 1, characterized in that: The caisson foundation adopts a reinforced concrete structure.

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