A combined loading test device for uneven settlement of power transmission tower geological disasters

Abstract

The application discloses a kind of uneven settlement of power transmission tower geological disaster combined loading test device, it is related to the technical field of electric power engineering.The installation unit includes power transmission tower, upper tower section and lower tower section arranged on the power transmission tower;Uneven settlement displacement simulation unit includes base and rotating bottom plate, rotating assembly is arranged between the base and rotating bottom plate.The device has accurate displacement control function, efficiently tests the mechanical response of power transmission tower structure and its foundation under different goaf settlement conditions, the device uses a simplified method, divides the power transmission tower system into two parts of lower tower leg and equivalent load support, truly reflects the stress state in the settlement process, reduces the complexity of model making, improves the reliability and operation convenience of test, the device is equipped with a variety of sensors, real-time monitoring data in the settlement process, provides support for comprehensive evaluation of the influence of surface subsidence on the safety of power transmission tower system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power engineering, and particularly relates to a combined loading test device for uneven settlement of a power transmission tower geological disaster. BACKGROUND

[0002] The power grid is a key infrastructure for the stable operation of modern society, and the power transmission tower, as a core component of the power transmission and distribution system, plays an important role in the power grid engineering.

[0003] With the expansion of the power grid construction, many power transmission line constructions are built in complex geological conditions, such as goaf collapse areas and soft soil foundation areas. In these areas, the support of the power transmission tower may have uneven displacement due to ground surface deformation, which may change the internal force distribution of the tower structure and even cause the tower to collapse, posing a threat to the safe operation of the power transmission line. Therefore, safety assessment, prediction and early warning of the tower structure have engineering value for ensuring the safety of the power grid. SUMMARY

[0004] In view of the problems of the existing combined loading test device for uneven settlement of a power transmission tower geological disaster, the present application is proposed.

[0005] Therefore, the present application provides a combined loading test device for uneven settlement of a power transmission tower geological disaster, which aims to solve the problem that the support of the power transmission tower may have uneven displacement due to ground surface deformation, which may change the internal force distribution of the tower structure and even cause the tower to collapse, posing a threat to the safe operation of the power transmission line.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a combined loading test device for uneven settlement of a power transmission tower geological disaster, comprising a mounting unit, including a power transmission tower, an upper tower section and a lower tower section arranged on the power transmission tower; an uneven settlement displacement simulation unit, including a base and a rotating base plate, a rotating assembly arranged between the base and the rotating base plate, a sliding seat arranged on the rotating base plate, a displacement assembly arranged on the sliding seat, a driven block arranged on the sliding seat, and a lifting assembly arranged on the driven block.

[0007] As a preferred scheme of the combined loading test device for uneven settlement of a power transmission tower geological disaster, the upper tower section includes a rigid arm, the rigid arm is arranged in the hollow structure of the upper tower section, a ring beam is arranged on the rigid arm, and a force loading point is arranged on the ring beam.

[0008] As a preferred scheme of the combined loading test device for uneven settlement of a power transmission tower geological disaster, the lower tower section includes four groups of column feet, the column feet are arranged at the four corner positions of the lower tower section, and a connecting seat is arranged at the lower end of the column feet.

[0009] As a kind of preferred scheme of the uneven settlement combination loading test device of geological disasters of the transmission tower of the application, wherein: the rotating component includes eight groups of fixed holes on the bottom plate, eight groups of the fixed hole is uniformly distributed on the circumference of annular structure, four groups of circular arc grooves are arranged on the rotating bottom plate;The rotating bottom plate is fixedly connected by bolt through circular arc groove and fixed hole.

[0010] As a kind of preferred scheme of the uneven settlement combination loading test device of geological disasters of the transmission tower of the application, wherein: the displacement component includes fixed block arranged on the sliding seat close to one end, hydraulic cylinder arranged on the fixed block, sliding block arranged on the sliding seat close to the other end;The output end of the hydraulic cylinder and the sliding block are fixedly connected.

[0011] As a kind of preferred scheme of the uneven settlement combination loading test device of geological disasters of the transmission tower of the application, wherein: the lifting component includes fixed base arranged on the driven block, lifting slide rail arranged on the fixed base upper side, lifting sliding block arranged on the inner side of two groups of lifting slide rails.

[0012] As a kind of preferred scheme of the uneven settlement combination loading test device of geological disasters of the transmission tower of the application, wherein: the lifting slide rail and the lifting sliding block are slidingly connected, the fixed plate is arranged on two groups of lifting sliding blocks, and the jack is arranged between two groups of slide rails on the fixed base;

[0013] The output end of the jack and the bottom of the fixed plate are fixedly connected, and the fixed plate and the connecting seat are matched.

[0014] As a kind of preferred scheme of the uneven settlement combination loading test device of geological disasters of the transmission tower of the application, wherein: it further includes fixing component, the fixing component includes fixing slide rail arranged on the fixed plate, movable sliding block arranged in the fixing slide rail, threaded rod arranged on one side of the fixing slide rail;The other end of the threaded rod and one side of the movable sliding block are in contact.

[0015] As a kind of preferred scheme of the uneven settlement combination loading test device of geological disasters of the transmission tower of the application, wherein: the shaped block is arranged on the inner side of the fixing slide rail and the other side of the movable sliding block, and the connecting plate is arranged between two groups of shaped blocks;The connecting plate and the connecting seat are screw connected.

[0016] As a preferred scheme of the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application, wherein: further comprising a monitoring assembly, the monitoring assembly comprising a force sensor and a displacement sensor, the force sensor being arranged between the other side lifting slide rail and the sliding block, and the displacement sensor being arranged between the one side lifting slide rail and the fixed block.

[0017] The device has precise displacement control function, can efficiently test mechanical response of the power transmission tower structure and its foundation under different goaf settlement conditions, and has the advantages of simplifying the method, dividing the power transmission tower system into two parts of lower tower leg and equivalent load support, reflecting the stress and displacement state in the settlement process, reducing the model manufacturing complexity, improving the test reliability and operation convenience, and being equipped with various sensors to monitor the data in the settlement process in real time, thereby providing support for comprehensively evaluating the influence of the ground settlement on the safety of the power transmission tower system. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a whole structure schematic view of the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application.

[0020] Figure 2 It is a partial structure schematic view of the installation unit in the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application.

[0021] Figure 3 It is a partial structure schematic view of the installation unit in the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application.

[0022] Figure 4 It is a structure schematic view of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application.

[0023] Figure 5 It is a partial structure schematic view of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application.

[0024] Figure 6 It is a partial structure schematic view of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of geological disasters of the power transmission tower of the application.

[0025] Figure 7It is a local structure schematic view of the uneven settlement displacement simulation unit in the uneven settlement combined loading test device for the power transmission tower geological disaster of the application.

[0026] Figure 8 It is a local structure exploded view of the uneven settlement displacement simulation unit in the uneven settlement combined loading test device for the power transmission tower geological disaster of the application. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0028] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the application, therefore the application is not limited by the specific embodiments disclosed below.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments.

[0030] Thirdly, the application is described in detail in conjunction with the schematic view, and in the detailed description of the embodiments of the application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic view is only an example, which should not limit the scope of protection of the application here. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0031] Embodiment 1, refer to Figure 1 - Figure 8 For the first embodiment of the application, a combined loading test device for uneven settlement of power transmission tower 101 geological disasters is provided, which comprises a power transmission tower 101, a ring beam 102b is threadedly connected to the upper part of the power transmission tower 101, a sex arm is arranged at the lower end center position of the ring beam 102b, the sex arm is inserted into the hollow structure of the upper tower section 102 of the power transmission tower 101, which has a stabilizing effect, and a force loading point 102c is arranged on one side of the ring beam 102b, the function of the force loading point 102c is to simulate the influence of the force and bending moment generated by the upper tower section 102 of the power transmission tower 101 on the lower tower section 103. By applying corresponding force at the force loading point 102c, the influence of the weight, wind load and other loads of the upper tower section 102 on the tower bottom can be simulated, so as to reproduce the mechanical behavior of the actual power transmission tower 101 under different load conditions in the experiment.

[0032] Further, the connecting seat 103b of the four-cornered column foot 103a arranged in the lower tower section 103 is used to connect the uneven settlement displacement simulation unit 200, which can achieve the purpose of selecting the number of sleeves actually needed to be used. The uneven settlement displacement simulation unit 200 comprises a base 201, which is uniformly provided with eight fixing holes 203a. The eight groups of fixing holes 203a are uniformly distributed on the circumference of the annular structure. Four groups of circular arc grooves 203b provided on the rotating bottom plate 202 are also uniformly distributed on the circumference of the annular structure, and the center positions of the circular arc grooves 203b are consistent with those of the eight groups of fixing holes 203a. When the rotating bottom plate 202 is at any position, the four groups of circular arc grooves 203b will correspond to a threaded hole respectively. This ensures that the rotating bottom plate 202 can always be accurately aligned with the threaded hole on the base 201 during rotation, thereby realizing stable connection and accurate rotation.

[0033] Further, the sliding seat 204 is fixedly installed without blocking the circular arc grooves 203b on the rotating bottom plate 202. The outer part of the sliding seat 204 is slidingly connected with a driven block 206 and a sliding block 205c. The sliding block 205c is arranged at the other end of the sliding seat 204. The sliding seat 204 is fixedly installed with a fixed block 205a at one end. The driven block 206 is arranged between the fixed block 205a and the sliding block 205c. The sliding seat 204 presents an isosceles trapezoidal shape, and the driven block 206 and the sliding block 205c are adapted thereto to realize a specific motion track or limit the driven block 206 and the sliding block 205c to only perform horizontal displacement.

[0034] Among them, the hydraulic cylinder 205b is arranged at the upper part of the fixed block 205a close to both ends. The end of the output end of the hydraulic cylinder 205b is connected with the sliding block 205c. The hydraulic cylinder 205b can generate linear movement through liquid pressure, thereby driving the sliding block 205c to move along the sliding seat 204.

[0035] Further, the fixed base 207a is arranged on the driven block 206. The lifting slide rails 207b are fixedly installed at the upper part of the fixed base 207a close to both ends. The lifting slide blocks 207c are slidingly connected in the grooves on the inner side of the lifting slide rails 207b. The lifting slide blocks 207c present an isosceles trapezoidal shape. The lifting slide blocks 207c are adapted to the grooves on the inner side of the lifting slide rails 207b to realize a specific motion track and limit the moving direction of the lifting slide blocks 207c to only perform vertical upward and downward displacement.

[0036] Among them, the upper parts of the two groups of lifting sliders 207c are fixedly connected to the fixed plate 207d, and the upper part of the fixed base 207a is located between the two groups of lifting rails 207b with a jack 207e. The output end of the jack 207e is in contact with the bottom of the fixed plate 207d. The jack 207e applies an upward force to the fixed plate 207d to lift the fixed plate 207d. At this time, the lifting slider 207c limits the moving direction of the fixed plate 207d to prevent the fixed plate 207d from deviating during the lifting process.

[0037] Furthermore, a fixed rail 208a is provided on the fixed plate 207d, and a movable slider 208b is slidably connected to the fixed rail 208a. A threaded rod 208c is threadedly connected to one end of the fixed rail 208a, and the other end of the threaded rod 208c contacts one side of the movable slider 208b. By rotating the threaded rod 208c, the movable slider 208b can be pushed to slide in the fixed rail 208a. Then, a 匚-shaped block 208d is fixedly installed on the inner side of the movable slider 208b and the fixed rail 208a. The two sets of 匚-shaped blocks 208d are fixedly installed on the inner side of the movable slider 208b and the fixed rail 208a. 8d is set in a mirror image to form a "mouth" shaped structure. A connecting plate 208e is movably connected between the two groups of 匚-shaped blocks 208d. The movable slider 208b is pushed by rotating the threaded rod 208c to cooperate with the two groups of 匚-shaped blocks 208d to stably clamp the connecting plate 208e. When the threaded rod 208c is not rotated, the position of the connecting plate 208e is fixed at the current position. The connecting plate 208e is fixedly connected to the connecting seat 103b by bolts. This arrangement facilitates the replacement of the uneven settlement displacement simulation unit 200 and is flexible in design.

[0038] The force sensor 209a is arranged between the lifting rail 207b on the other side and the sliding block 205c, and the displacement sensor 209b is arranged between the lifting rail 207b on one side and the fixed block 205a. The force sensor 209a is used to detect the reaction force, and the displacement sensor 209b is used to measure the displacement.

[0039] Example 2, reference Figure 1 - Figure 8 This is the second embodiment of the present invention. Unlike the first embodiment, this embodiment also demonstrates a high degree of professionalism and precision in the design of the transmission tower 101 system model. The model consists of two major components: the lower tower section 103 and the equivalent load support. The equivalent load support comprises the key elements of the ring beam 102b, the force application point 102c, and the rigid arm 102a, which respectively serve to secure the transmission tower model and simulate the upper load and torque. Through computer mechanics and modal analysis, the moment length of the rigid arm 102a and the mass of the counterweight can be finely adjusted to ensure the desired dynamic similarity between the model transmission tower 101 and the actual prototype tower.

[0040] The lower tower section 103 of the model transmission tower 101 is designed according to the actual size of the transmission tower 101 in a certain proportion, and the upper tower section 102 is simplified by equivalent load and torque. These loads are applied to the model through equivalent load supports. In addition, displacement and acceleration sensors are installed at the top and bottom of the tower section to monitor and record the response of the transmission tower 101 in real time during the dynamic process.

[0041] The lower tower section 103 is geometrically scaled according to the actual transmission tower 101 in a ratio of 1:α (where α represents the geometric reduction multiple), and the adjacent angle bars of the tower section are connected by bolts to ensure the stability and repeatability of the structure.

[0042] Further, the lower tower section 103 of the transmission tower 101 is built according to the above-mentioned proportion and design principles, the top of the tower is connected to the equivalent load support by bolts, and the column foot 103a at the bottom is connected to the uneven settlement displacement simulation device by bolts, forming a stable experimental system. The equivalent load support, the lower tower section 103 and the uneven settlement displacement simulation device are fixedly connected by bolts, further ensuring the stability of the overall structure. Each tower leg is equipped with an independent uneven settlement displacement simulation unit 200, which is fixed to the ground by ground anchor bolts. These devices have independent degrees of freedom and can simulate multi-directional settlement.

[0043] In addition to displacement and acceleration sensors, strain, displacement and force sensors 209a are also arranged on the key bars of the transmission tower 101 model. The comprehensive arrangement of these sensors can capture the mechanical behavior of the tower under the influence of uneven settlement in detail, providing rich data support for in-depth analysis and accurate assessment of the safety of the tower.

[0044] Further, the device is designed with multiple degrees of freedom, including arbitrary horizontal degrees of freedom and a vertical degree of freedom, to simulate displacement in different directions. The device mainly consists of a rotating base plate 202, a hydraulic cylinder 205b, a driven block 206, a fixed block 205a, a sliding block 205c, a displacement sensor 209b, a force sensor 209a, a jack 207e and a controller. The hydraulic cylinder 205b is responsible for driving the sliding block 205c to produce horizontal displacement, while the jack 207e is used to control the vertical displacement. Adjust the angle of the rotating base plate 202 so that the column foot 103a can produce displacement in any direction in the horizontal direction.

[0045] The controller is responsible for receiving the displacement information of the actual project and converting it into a control signal for the hydraulic cylinder 205b, thereby achieving precise control of the simulation device. Independent force and displacement sensors 209b are arranged on each degree of freedom to ensure real-time monitoring and precise control of the settlement displacement in each direction.

[0046] The uneven settlement displacement simulation device is fixed to the ground by anchor bolts, ensuring the stability of the device. At the same time, the device is connected with the power transmission tower 101 model through bolts, ensuring the reliability and safety during the simulation process. The rest of the structure is the same as that of example 1.

[0047] Example 3, with reference to Figure 1 Figure 8 As the third embodiment of the present application, the difference between this embodiment and the second embodiment is that the tower bears the vertical gravity load and horizontal wind load of the upper tower section 102, the conductor, the ground wire, the insulator, etc. The horizontal wind load on the upper structure forms an unbalanced bending moment and a horizontal force at the top of the test model; the gravity load of the upper structure generates equal vertical loads at each corner point of the top of the test model. An equivalent load support is used to apply the load to the model. The vertical load is loaded by stacking heavy objects.

[0048] According to the geometric ratio of the similar model, the dimensional analysis is used to determine the similar ratio of the physical and mechanical parameters of the tower leg of the power transmission tower 101 and the load. The similar physical and mechanical parameters include the geometric similarity ratio, the density similarity ratio, the mass similarity ratio, the damping ratio similarity ratio, the stress similarity ratio and the frequency similarity ratio. The specific parameter results are shown in Table 1, and the similarity constants of the local similar model of the power transmission tower are shown in Table 2.

[0049] Table 1 Similarity ratio of each physical parameter

[0050]

[0051] Table 2 Similarity constants of the test model

[0052]

[0053]

[0054] With the precise displacement control function, the device can efficiently test the mechanical response of the power transmission tower 101 structure and its foundation under different goaf settlement conditions. The device uses a simplified method to divide the power transmission tower 101 system into two parts, the lower tower leg and the equivalent load support, which truly reflects the stress state during the settlement process, reduces the complexity of model manufacturing, and improves the reliability and operation convenience of the test.

[0055] Further, the design is flexible, and the settlement behavior of the power transmission tower under various working conditions can be simulated. The device is equipped with various sensors to monitor the data in real time during the settlement process, providing support for comprehensive evaluation of the influence of ground settlement on the safety of the power transmission tower 101 system.

[0056] ​In addition to the advantages in technology and functionality, the device provided by the present application also has a number of practical advantages, including ease of installation and operation, functional diversity, reusability, and lower cost. These advantages make the device not only suitable for scientific research environments, but also very suitable for widespread application in engineering practice, providing solid experimental support for the stability and safety of the power transmission tower 101.

[0057] The rest of the structure is the same as that of Example 2.

[0058] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the generality of the application. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the application as expressed in the appended claims. Accordingly, the application is not limited to the particular embodiments described but extends to the scope of the appended claims.

[0059] Furthermore, in order to provide a brief description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those features that are not relevant to the best mode for carrying out the application currently under consideration or those features that are not relevant to implementing the application).

[0060] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and they should be included in the scope of the claims of the present application.

Claims

1. A combined loading test device for uneven settlement of transmission towers caused by geological disasters, characterized by: include, An installation unit (100) comprises a transmission tower (101), an upper tower section (102) and a lower tower section (103) arranged on the transmission tower (101); An uneven settlement displacement simulation unit (200) is provided below the lower tower section (103), the uneven settlement displacement simulation unit (200) comprising a base (201) and a rotating base plate (202), a rotating assembly (203) provided between the base (201) and the rotating base plate (202), a sliding seat (204) provided on the rotating base plate (202), a displacement assembly (205) provided on the sliding seat (204), a driven block (206) provided on the sliding seat (204), and a lifting assembly (207) provided on the driven block (206), wherein the lower tower body of the lower tower section (103) is connected to the lifting assembly (207); The displacement assembly (205) comprises a fixed block (205a) disposed on the sliding seat (204) near one end, a hydraulic cylinder (205b) disposed on the fixed block (205a), and a sliding block (205c) disposed on the sliding seat (204) near the other end; The output end of the hydraulic cylinder (205b) is fixedly connected to the sliding block (205c).

2. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 1 is characterized in that: The upper tower section (102) comprises a rigid arm (102a), the rigid arm (102a) being arranged in a hollow structure of the upper tower section (102), a ring beam (102b) arranged on the rigid arm (102a), and a force loading point (102c) arranged on the ring beam (102b).

3. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 2, characterized in that: The lower tower section (103) comprises four groups of column feet (103a), the column feet (103a) being arranged at the four corners of the lower tower section (103), and a connecting seat (103b) being arranged at the lower end of the column feet (103a).

4. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 3 is characterized by: The rotating assembly (203) comprises eight groups of fixing holes (203a) on the bottom plate, the eight groups of fixing holes (203a) being evenly distributed on the circumference of the annular structure, and four groups of circular arc grooves (203b) provided on the rotating bottom plate (202); The rotating base plate (202) is fixedly connected via bolts passing through the arc groove (203b) and the fixing hole (203a).

5. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 4 is characterized in that: The lifting assembly (207) comprises a fixed base (207a) arranged on the driven block (206), lifting slide rails (207b) arranged on both sides of the upper portion of the fixed base (207a), and a lifting slider (207c) arranged on the inner sides of the two sets of lifting slide rails (207b); The driven block (206) is arranged between the fixed base (207a) and the sliding base (204).

6. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 5, characterized in that: The lifting rails (207b) and the lifting sliders (207c) are slidably connected, a fixed plate (207d) is placed on the two sets of lifting sliders (207c), and a jack (207e) is arranged on the fixed base (207a) and located between the two sets of rails; The output end of the jack (207e) is fixedly connected to the bottom of the fixing plate (207d), and the fixing plate (207d) and the connecting seat (103b) are matched.

7. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 6, characterized in that: It also includes a fixing assembly (208), the fixing assembly (208) including a fixing rail (208a) arranged on the fixing plate (207d), a movable slider (208b) arranged in the fixing rail (208a), and a threaded rod (208c) arranged on one side of the fixing rail (208a); The other end of the threaded rod (208c) contacts one side of the movable slider (208b).

8. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 7, characterized in that: a U-shaped block (208d) disposed inside the fixed slide rail (208a) and on the other side of the movable slide block (208b), and a connecting plate (208e) disposed between two groups of the U-shaped blocks (208d); The connecting plate (208e) and the connecting seat (103b) are threadedly connected.

9. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 8, characterized in that: It also includes a monitoring component (209), the monitoring component (209) including a force sensor (209a) and a displacement sensor (209b), the force sensor (209a) being arranged between the lifting rail (207b) on the other side and the sliding block (205c), and the displacement sensor (209b) being arranged between the lifting rail (207b) on one side and the fixed block (205a).

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