Combined loading test device for differential settlement of transmission tower in geological disaster

Abstract

The invention discloses a combined loading test device for differential settlement of a transmission tower in geological disasters, and relates to the technical field of electric power engineering. Comprising a transmission tower, an upper tower section and a lower tower section, and the upper tower section and the lower tower section are arranged on the transmission tower; the differential settlement displacement simulation unit comprises a base, a rotating bottom plate and a rotating assembly arranged between the base and the rotating bottom plate. The device has an accurate displacement control function, efficiently tests the transmission tower structure and the basic mechanical response thereof under different goaf settlement conditions, adopts a simplified method, divides a transmission tower system into two parts, namely a lower tower leg and an equivalent load bracket, truly reflects the stress state in the settlement process, reduces the model manufacturing complexity, and improves the construction efficiency. The device is provided with various sensors, data in the settlement process are monitored in real time, and support is provided for comprehensively evaluating the influence of ground surface settlement on the safety of a transmission tower system.

Description

Technical Field

[0001] The invention relates to the technical field of electric power engineering, and in particular to a combined loading test device for uneven settlement of a transmission tower caused by geological disasters. Background Art

[0002] The power grid is a key infrastructure for the stable operation of modern society. Transmission towers, as core components of the power transmission and distribution system, play an important role in power grid projects.

[0003] With the expansion of power grid construction, many transmission lines are built in areas with complex geological conditions, such as mining subsidence areas and soft soil foundation areas. In these areas, the supports of transmission towers may undergo uneven displacement due to surface deformation, resulting in changes in the internal force distribution of the tower structure. In severe cases, the tower may collapse, posing a threat to the safe operation of the transmission line. Therefore, safety assessment, prediction and early warning of tower structures are of engineering value to ensure the safety of the power grid. Summary of the invention

[0004] In view of the problems existing in the above-mentioned combined loading test device for uneven settlement of transmission towers caused by geological disasters, the present invention is proposed.

[0005] Therefore, the present invention provides a combined loading test device for uneven settlement of transmission towers caused by geological disasters, the purpose of which is to solve the problem that the supports of transmission towers may undergo uneven displacement due to surface deformation, resulting in changes in the internal force distribution of the tower structure, which may cause the tower to collapse in severe cases, posing a threat to the safe operation of transmission lines.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a combined loading test device for uneven settlement of a transmission tower due to geological disasters, comprising an installation unit, including a transmission tower, an upper tower section and a lower tower section arranged on the transmission tower; an uneven settlement displacement simulation unit, comprising 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 solution of the combined loading test device for uneven settlement of transmission tower caused by geological disasters described in the present invention, 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 solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters described in the present invention, the lower tower section includes four groups of column feet, the column feet are arranged at the four corners of the lower tower section, and a connecting seat is arranged at the lower end of the column feet.

[0009] As a preferred solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters described in the present invention, the rotating assembly includes eight groups of fixing holes on the base plate, the eight groups of fixing holes are evenly distributed on the circumference of the annular structure, and four groups of arc grooves are arranged on the rotating base plate; the rotating base plate is fixedly connected by bolts passing through the arc grooves and the fixing holes.

[0010] As a preferred solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters described in the present invention, the displacement assembly includes a fixed block arranged on one end of the sliding seat, a hydraulic cylinder arranged on the fixed block, and a sliding block arranged on the sliding seat near the other end; the output end of the hydraulic cylinder is fixedly connected to the sliding block.

[0011] As a preferred solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters described in the present invention, the lifting assembly includes a fixed base arranged on the driven block, lifting rails arranged on both sides of the upper part of the fixed base, and a lifting slider arranged on the inner side of the two groups of lifting rails.

[0012] As a preferred solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention, the lifting rails and lifting sliders are slidably connected, a fixing plate is placed on two groups of lifting sliders, and a jack is arranged on the fixed base and located between the two groups of rails;

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

[0014] As a preferred solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters described in the present invention, it further includes a fixing assembly, which includes a fixed slide rail arranged on the fixing plate, a movable slider arranged in the fixed slide rail, and a threaded rod arranged on one side of the fixed slide rail; the other end of the threaded rod is in contact with one side of the movable slider.

[0015] As a preferred solution of the combined loading test device for uneven settlement of transmission towers caused by geological disasters described in the present invention, it comprises: a U-shaped block arranged inside the fixed slide rail and on the other side of the movable slide block, and a connecting plate arranged between two groups of the U-shaped blocks; the connecting plate and the connecting seat are threadedly connected.

[0016] As a preferred solution of the combined loading test device for uneven settlement of transmission tower caused by geological disasters described in the present invention, it also includes a monitoring component, which includes a force sensor and a displacement sensor. The force sensor is arranged between the lifting rail and the sliding block on the other side, and the displacement sensor is arranged between the lifting rail and the fixed block on one side.

[0017] The beneficial effects of the present invention are as follows: the device has a precise displacement control function, and can efficiently test the transmission tower structure and its foundation mechanical response under different goaf settlement conditions. The device adopts a simplified method to divide the transmission tower system into two parts: the lower tower leg and the equivalent load bracket, which truly reflects the force and displacement state during the settlement process, reduces the complexity of model making, and improves the test reliability and ease of operation. The device is equipped with a variety of sensors to monitor the data during the settlement process in real time, providing support for a comprehensive assessment of the impact of surface settlement on the safety of the transmission tower system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the combined loading test device for uneven settlement of transmission towers caused by geological disasters according to the present invention.

[0020] Figure 2 It is a partial structural schematic diagram of the installation unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention.

[0021] Figure 3 It is a partial structural schematic diagram of the installation of the motion unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention.

[0023] Figure 5 It is a partial structural schematic diagram of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention.

[0024] Figure 6 It is a partial structural schematic diagram of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention.

[0025] Figure 7It is a partial structural schematic diagram of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention.

[0026] Figure 8 It is a schematic diagram of the partial structural disassembly of the uneven settlement displacement simulation unit in the combined loading test device for uneven settlement of transmission towers caused by geological disasters of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0031] Example 1, reference Figure 1 - Figure 8 , which is the first embodiment of the present invention, provides a combined loading test device for uneven settlement of a transmission tower 101 caused by geological disasters, including a transmission tower 101, wherein the upper part of the transmission tower 101 is connected with a ring beam 102b by bolt threads, and a tension arm is arranged at the center of the lower end of the ring beam 102b, and the tension arm is inserted into the hollow structure of the upper tower section 102 of the transmission tower 101, which plays a stabilizing effect, and a force loading point 102c is arranged on one side of the ring beam 102b, and the role 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 transmission tower 101 on the lower tower section 103. By applying a corresponding force at the force loading point 102c, the influence of the weight of the upper tower section 102, wind force and other loads on the tower bottom can be simulated, so as to reproduce the mechanical behavior of the actual transmission tower 101 under different load conditions in the experiment.

[0032] Further, the connection base 103b is arranged on the four-corner column foot 103a of the lower tower section 103, and the connection base 103b is used to connect the uneven settlement displacement simulation unit 200. The uneven settlement displacement simulation unit 200 can achieve the purpose of selecting the number of sets actually needed to be used. The uneven settlement displacement simulation unit 200 includes a base 201, and eight fixing holes 203a are evenly distributed on the base 201. The eight groups of fixing holes 203a are evenly distributed on the circumference of the annular structure. The four groups of arc grooves 203b opened on the rotating base plate 202 are also evenly distributed on the circumference of the annular structure, and the center positions of these arc grooves 203b are consistent with the center positions of the eight groups of fixing holes 203a. When the rotating base plate 202 is in any position, the four groups of arc grooves 203b will correspond to a threaded hole respectively. It is ensured that the rotating base plate 202 can always be accurately aligned with the threaded holes on the base 201 during the rotation process, so as to achieve stable connection and precise rotation.

[0033] Furthermore, without blocking the arc groove 203b on the rotating base plate 202, a sliding seat 204 is fixedly installed, and the external sliding connection of the sliding seat 204 is connected with a driven block 206 and a sliding block 205c, and the sliding block 205c is arranged at the other end of the sliding seat 204, and a fixed block 205a is fixedly installed at one end of the sliding seat 204, and the driven block 206 is arranged between the fixed block 205a and the sliding block 205c. The sliding seat 204 presents an isosceles trapezoid that is wide at the top and narrow at the bottom, and the driven block 206 and the sliding block 205c are adapted thereto to realize a specific motion trajectory or limit the driven block 206 and the sliding block 205c to horizontal displacement.

[0034] Among them, hydraulic cylinders 205b are arranged near both ends of the upper part of the fixed block 205a, and the output end of the hydraulic cylinder 205b is connected to 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] Furthermore, a fixed base 207a is provided on the driven block 206, and lifting slide rails 207b are fixedly installed at both ends of the upper part of the fixed base 207a. A lifting slider 207c is slidably connected to the inner groove of the lifting slide rail 207b. The lifting slider 207c is an isosceles trapezoid that is wide at the top and narrow at the bottom. The lifting slider 207c is matched with the groove on the inner side of the lifting slide rail 207b to achieve a specific motion trajectory and limit the moving direction of the lifting slider 207c, so that it can only make vertical up and down displacements.

[0036] Among them, a fixing plate 207d is fixedly connected to the upper parts of the two groups of lifting sliders 207c. A jack 207e is arranged between the two groups of lifting slide rails 207b at the upper part of the fixing base 207a. The output end of the jack 207e contacts the bottom of the fixing plate 207d. The jack 207e applies an upward force to the fixing plate 207d to lift the fixing plate 207d. At this time, the lifting slider 207c restricts the moving direction of the fixing plate 207d, preventing the fixing plate 207d from shifting during the lifting process.

[0037] Furthermore, a fixed slide rail 208a is arranged on the fixing plate 207d. A movable slider 208b is slidably connected in the fixed slide rail 208a. One end of the fixed slide rail 208a is threadedly connected with a threaded rod 208c. 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 slide rail 208a. C-shaped blocks 208d are fixedly installed on the inner sides of the movable slider 208b and the fixed slide rail 208a. The two groups of C-shaped blocks 208d are arranged in a mirror image to form a "square" structure. A connecting plate 208e is movably connected between the two groups of C-shaped blocks 208d. By rotating the threaded rod 208c to push the movable slider 208b, the connecting plate 208e is stably clamped by the two groups of C-shaped blocks 208d. Without rotating the threaded rod 208c, 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. Such a setting facilitates the replacement of the non-uniform settlement displacement simulation unit 200, and the design is flexible.

[0038] And a force sensor 209a is arranged between the other lifting slide rail 207b and the sliding block 205c, and a displacement sensor 209b is arranged between one lifting slide rail 207b 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] Embodiment 2, referring to Figure 1 - Figure 8 , is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the design of the transmission tower 101 system model also reflects a high degree of professionalism and accuracy. The model consists of two major parts: the lower tower section 103 and the equivalent load support. The equivalent load support consists of key elements such as a ring beam 102b, a force loading point 102c, and a rigid arm 102a, which respectively undertake the functions of fixing the transmission tower model, simulating the upper load and moment. Through computer mechanics analysis and modal analysis, the moment length of the rigid arm 102a and the mass of the counterweight can be finely adjusted to ensure the required 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 based on the size of the actual transmission tower 101 and is accurately reduced in a certain proportion, while the upper tower section 102 is simplified by using equivalent loads and torques. These loads are applied to the model through equivalent load brackets. 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 the dynamic process in real time.

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

[0042] Furthermore, the lower tower section 103 of the transmission tower 101 is constructed according to the above proportions and design principles. The top of the tower is connected to the equivalent load bracket by bolts, and the column foot 103a at the bottom of the tower is connected to the uneven settlement displacement simulation device by bolts, forming a stable experimental system. The equivalent load bracket, the lower tower section 103 and the uneven settlement displacement simulation device are all fixedly connected by bolts, further ensuring the stability of the overall structure. An uneven settlement displacement simulation unit 200 is separately equipped under each tower leg and fixed to the ground by anchor bolts. These devices have independent degrees of freedom and can simulate settlement in multiple directions.

[0043] In addition to displacement and acceleration sensors, strain, displacement and force sensors 209a are also arranged on each key pole of the transmission tower model 101. 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 evaluation of the safety of the tower.

[0044] Furthermore, the device is designed with multiple degrees of freedom, including any horizontal degree of freedom and one vertical degree of freedom, to simulate settlement displacement in different directions. The device is mainly composed 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. The angle of the rotating base plate 202 is adjusted 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 the control signal of the hydraulic cylinder 205b, so as to realize the precise control of the simulation device. An independent force and displacement sensor 209b is arranged on each degree of freedom to ensure the real-time monitoring and precise control of the settlement displacement in all directions.

[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 to the transmission tower 101 model by 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, reference Figure 1 - Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that the pole tower bears the vertical gravity load and horizontal wind load of the upper tower section 102, conductors, ground wires, insulators, etc. The horizontal wind load on the upper structure forms an unbalanced bending moment and horizontal force at the top of the test model; the gravity load of the upper structure generates equal vertical loads at each corner point at the top of the test model. An equivalent load bracket is used to apply loads to the model. The vertical load is loaded by stacking heavy objects.

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

[0049] Table 1 Similarity ratio of various physical parameters

[0050]

[0051] Table 2 Similarity constants of experimental model

[0052]

[0053]

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

[0055] Furthermore, the design is flexible and can simulate the settlement behavior of transmission towers under various working conditions. The device is equipped with a variety of sensors to monitor data during the settlement process in real time, providing support for a comprehensive assessment of the impact of surface settlement on the safety of the transmission tower 101 system.

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

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

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention 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 invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A combined loading test device for uneven settlement of transmission towers caused by geological disasters, characterized in that: include, An installation unit (100) comprises a power transmission tower (101), an upper tower section (102) and a lower tower section (103) arranged on the power transmission tower (101); The uneven settlement displacement simulation unit (200) comprises a base (201) and a rotating base plate (202), a rotating assembly (203) arranged between the base (201) and the rotating base plate (202), a sliding seat (204) arranged on the rotating base plate (202), a displacement assembly (205) arranged on the sliding seat (204), a driven block (206) arranged on the sliding seat (204), and a lifting assembly (207) arranged on the driven block (206).

2. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 1 is characterized by: 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) being arranged on the rigid arm (102a), and a force loading point (102c) being 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 is characterized in that: The lower tower section (103) comprises four groups of column feet (103a), the column feet (103a) are arranged at the four corners of the lower tower section (103), and a connecting seat (103b) is 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) are evenly distributed on the circumference of the annular structure, and four groups of arc grooves (203b) are arranged on the rotating bottom plate (202); The rotating base plate (202) is fixedly connected by bolts penetrating the circular 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 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).

6. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 5 is characterized by: 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 part of the fixed base (207a), and a lifting slider (207c) arranged on the inner sides of the two sets of lifting slide rails (207b).

7. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 6 is characterized by: The lifting rail (207b) and the lifting slider (207c) are slidably connected, a fixed plate (207d) is placed on the two groups of lifting sliders (207c), and a jack (207e) is arranged on the fixed base (207a) and located between the two groups 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.

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

9. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 8 is characterized by: 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.

10. The combined loading test device for uneven settlement of transmission towers caused by geological disasters according to claim 9, characterized in that: It also includes a monitoring component (209), the monitoring component (209) includes a force sensor (209a) and a displacement sensor (209b), 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).

Images