Multi-angle fault dislocation device for vibration table model box

Abstract

The invention discloses a multi-angle fault dislocation device for a vibration table model box. The multi-angle fault dislocation device comprises an angle splice plate, an upper device, a lower device, a bottom plate and the like. The upper device and the lower device are square steel pipes, and the lower device is inserted into the upper device and is fixed by inserting a bolt into a reserved bolt hole; a lower sleeve is welded at the bottom of the lower device; the bottom plate is formed by welding an upper steel plate, a lower steel plate and a bottom plate sleeve, the lower steel plate is provided with a universal spherical hinge, the bottom plate sleeve is inserted into a lower sleeve in the lower device, and a pin is inserted into a pin hole reserved in the sleeve for fixing. According to the invention, the vibration table model box can generate a certain dislocation amount, so that the vibration excitation dislocation transmission is dynamic; the six-degree-of-freedom vibration of the vibration table model box in the front-back direction, the horizontal direction and the vertical direction can be met, installation is easy and convenient, performance is stable, and the angle and the width can be rapidly converted.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel engineering test devices, and in particular relates to a multi-angle fault displacement device for a shaking table model box. Background Art

[0002] Model boxes are important equipment for shaking table tests of underground structures. Domestic and foreign scholars have used different types of model boxes in their respective studies. However, the research on fault-tunnel interaction tends to focus more on structural design, and the consideration of fault rupture mechanism is relatively lacking. The movement of different fault types has different effects on tunnel structures, while there are few studies on the response characteristics of tunnels under fault movement under earthquakes. Therefore, studying the response characteristics of tunnel structures under fault movement is crucial for tunnel seismic design and evaluation.

[0003] In order to reasonably simulate the rupture mechanism of multi-angle faults, the multi-angle fault dislocation device transmits the excitation of the shaking table to the model box, which can quickly convert different fault inclinations and widths, and effectively simulate the impact of fault dislocation under earthquake action on underground structures. Summary of the invention

[0004] In order to design a multi-angle fault dislocation device for a vibration table model box, the device can adjust different angles according to needs to achieve the purpose of simulating different fault angles. The device can transmit power and has a certain degree of freedom. The present invention provides a multi-angle fault dislocation device for a vibration table model box.

[0005] The invention discloses a multi-angle fault displacement device for a vibration table model box, comprising an angle splicing plate, an upper device, a lower device, a bottom plate and the like.

[0006] The upper device and the lower device are square steel pipes. The lower device is inserted into the upper device and fixed by inserting a pin into a reserved pin hole. A lower sleeve is welded at the bottom of the lower device.

[0007] The bottom plate is welded by two layers of steel plates, the lower layer of steel plate and the bottom plate sleeve. The lower layer of steel plate is installed with a universal ball joint. The bottom plate sleeve is inserted into the lower sleeve in the lower device and fixed by inserting a pin through the pin hole reserved on the sleeve.

[0008] Furthermore, the angle splicing plate is composed of two side splicing plates and a bottom splicing plate, which are fixed by bolts.

[0009] Furthermore, the side splicing plates of the angle splicing plates can be processed and manufactured at different angles according to needs.

[0010] Furthermore, the upper devices are connected to each other and to the angle joint plates by chains, so that the entire device forms a whole, and a cloth-reinforced rubber cover is installed on the inner side of the device to cover it.

[0011] Furthermore, the bottom plate sleeve and the lower sleeve are provided with holes at different angles to adjust the angle of the device.

[0012] Furthermore, the upper device and the lower device are provided with holes of different heights to adjust the height of the device.

[0013] The beneficial technical effects of the present invention are:

[0014] The device of the present invention can make the vibration table model box produce a certain amount of dislocation, so that the vibration excitation dislocation transmission has dynamic characteristics, more realistically reflects the impact of the dynamic changes of the fault zone on the underground structure when an earthquake occurs, and provides a research basis for revealing the dynamic response characteristics of underground structures under complex conditions such as active fault zones. The present invention can meet the vibration of the vibration table model box in six degrees of freedom, front and back, horizontal and vertical, and is easy to install, stable in performance, and can quickly change angles and widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic structural diagram of a multi-angle fault displacement device for a vibration table model box.

[0016] Figure 2 It is a side view of the multi-angle fault displacement device used for the vibration table model box of the present invention.

[0017] Figure 3 The present invention is used for the installation diagram of the multi-angle fault displacement device of the vibration table model box Figure 1 .

[0018] Figure 4 The present invention is used for the installation diagram of the multi-angle fault displacement device of the vibration table model box Figure 2 .

[0019] In the figure: 1-angle splicing plate, 2-upper device, 3-lower device, 4-bottom plate, 5-chain, 6-lower sleeve, 7-bottom plate sleeve, 8-universal ball joint, 9-bolt, 10-cloth-reinforced rubber, 11-side splicing plate, 12-bottom splicing plate. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The present invention is a multi-angle fault displacement device for a vibration table model box. Figure 1 , Figure 2 As shown, it includes an angle splicing plate 1, an upper device 2, a lower device 3 and a bottom plate 4.

[0022] The upper device 2 and the lower device 3 are square steel pipes. The lower device 3 is inserted into the upper device 2 and fixed by inserting a pin into a reserved pin hole. A lower sleeve 6 is welded to the bottom of the lower device 3 .

[0023] The bottom plate 4 is composed of two layers of steel plates welded together with a bottom plate sleeve 7. A universal ball joint 8 is installed on the lower steel plate to enable the device to move freely. The bottom plate sleeve 7 is inserted into the lower sleeve 6 in the lower device 3 and fixed by inserting a pin through the pin hole reserved on the sleeve.

[0024] Furthermore, the angle splicing plate 1 is composed of two side splicing plates 11 and a bottom splicing plate 12, which are fixed by bolts.

[0025] Furthermore, the side splicing plates 11 of the angle splicing plate 1 can be processed and manufactured at different angles according to requirements.

[0026] Furthermore, the upper devices 2 are connected to each other and to the angle joint plate 1 by chains 5, so that the entire device forms a whole, and a cloth-reinforced rubber sheet 10 is installed inside the device to cover and prevent soil leakage, thereby ensuring the sealing of the model soil.

[0027] Furthermore, the bottom sleeve 7 and the lower sleeve 6 are provided with holes at different angles to adjust the angle of the device.

[0028] Furthermore, the upper device 2 and the lower device 3 are provided with holes of different heights to adjust the height of the device.

[0029] The specific implementation process is as follows:

[0030] (1) First, follow Figure 3 As shown, the side splicing plate 11 is installed on the bottom splicing plate 12, and the bottom splicing plate 12 and the mold box are fixed through the reserved bolt holes.

[0031] (2) According to Figure 4 As shown, the upper and lower steel plates are welded to the bottom plate sleeve 7 to form the bottom plate 4, the lower steel plate is installed with a universal ball joint 8, and then the bottom plate sleeve 7 is inserted into the lower sleeve 6 in the lower device 3, and fixed by inserting pins through the pin holes reserved on the sleeve.

[0032] (3) Insert the upper device 3 into the upper device 2 and fix it by inserting the pin through the reserved pin hole.

[0033] (4) The upper devices 2 are connected to each other and to the angle joint plate 1 by chains 5 so that the entire device forms a whole.

[0034] (5) Install the cloth-reinforced rubber sheet 10 to cover and prevent soil leakage, thus ensuring the tightness of the model soil.

Claims

1. A multi-angle fault displacement device for a vibration table model box, characterized in that: It comprises an angle joint plate (1), an upper device (2), a lower device (3) and a bottom plate (4); The upper device (2) and the lower device (3) are square steel pipes. The lower device (3) is inserted into the upper device (2) and fixed by inserting a pin into a reserved pin hole. A lower sleeve (6) is welded to the bottom of the lower device (3). The bottom plate (4) is formed by welding two layers of steel plates, the upper and lower layers, and a bottom plate sleeve (7). A universal ball joint (8) is installed on the lower steel plate. The bottom plate sleeve (7) is inserted into the lower sleeve (6) in the lower device (3) and fixed by inserting a pin through a pin hole reserved on the sleeve.

2. The multi-angle fault displacement device for a vibration table model box according to claim 1 is characterized in that: The angle splicing plate (1) is composed of two side splicing plates (11) and a bottom splicing plate (12), which are fixed by bolts.

3. The multi-angle fault displacement device for a vibration table model box according to claim 2 is characterized in that: The side splicing plates (11) of the angle splicing plates (1) can be processed and manufactured to different angles according to requirements.

4. The multi-angle fault displacement device for a vibration table model box according to claim 1 is characterized in that: The upper devices (2) are connected to each other and to the angle joint plate (1) via chains (5), so that the entire device forms a whole, and a cloth-reinforced rubber sheet (10) is installed on the inner side of the device to cover it.

5. The multi-angle fault displacement device for a vibration table model box according to claim 1 is characterized in that: The bottom plate sleeve (7) and the lower sleeve (6) are provided with holes at different angles to adjust the angle of the device.

6. The multi-angle fault displacement device for a vibration table model box according to claim 1 is characterized in that: The upper device (2) and the lower device (3) are provided with holes of different heights to adjust the height of the device.

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