A shock-absorbing trench support device and its usage method

Abstract

The present invention provides a shock-absorbing trench support device and a method for using the same, which includes a steel collar, a support provided on the steel collar, a support component provided on the support, and a prestressing component provided on the support component; the support component includes four diamond-shaped support units, a first tension cable and a second tension cable provided between the diamond-shaped support units, the four diamond-shaped support units are connected end to end by four first bolts, the first tension cable and the second tension cable are respectively provided between two opposite first bolts, the prestressing component is connected to both ends of the second tension cable. The present invention can capture tiny seismic waves and attenuate the vibration wave energy in time to achieve the purpose of protecting the surrounding buildings. The present invention can significantly increase the depth and stability of the shock-absorbing trench, call on deeper soil to isolate the action of vibration waves, and at the same time reduce the construction land, and has good application prospects.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction earthquake resistance and tensioning, and particularly relates to a shock-absorbing trench support device and a using method thereof. Background Art

[0002] Traditional shock-absorbing trenches adopt a slope form to increase the depth and stability of the shock-absorbing trenches. Its disadvantages are as follows: If you want to achieve the effect of supporting the soil body, the slope gradient is relatively gentle. For shock-absorbing trenches with a relatively large depth, more land area needs to be occupied and the depth increase is limited, which is not conducive to the current urban-intensive building situation in China. Or fill with sand and gravel, slag or other loose materials. Its disadvantages are as follows: The longitudinal wave can propagate through water or solid media. Filling with porous loose materials increases the solid media and is prone to water accumulation, further reducing the shock isolation effect. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a shock-absorbing trench support device and a using method thereof, which can capture tiny seismic waves and attenuate the vibration wave energy in time to achieve the purpose of protecting the surrounding buildings. The present invention can significantly increase the depth and stability of the shock-absorbing trench, utilize deeper soil to isolate the vibration wave, and at the same time reduce the construction land, having good application prospects.

[0004] In the first aspect, the invention provides the following technical solution. A shock-absorbing trench support device includes a steel waling, a support provided on the steel waling, a support component provided on the support, and a prestress component provided on the support component;

[0005] The support component includes four diamond-shaped support units, a first tension cable and a second tension cable provided between the diamond-shaped support units. The four diamond-shaped support units are connected end to end through four first bolts, and the first tension cable and the second tension cable are respectively provided between two opposite first bolts;

[0006] The diamond-shaped support unit includes four support rods, a third tension cable and a fourth tension cable provided between the support rods. The four support rods are connected end to end through four second bolts, and the third tension cable and the fourth tension cable are respectively provided between two opposite second bolts;

[0007] Wherein, the first tension cable and the second tension cable are vertically arranged, the third tension cable and the fourth tension cable are vertically arranged, and the prestress component is connected to both ends of the second tension cable.

[0008] Compared with the prior art, the beneficial effects of the present application are as follows: By providing a support component, and the support component is composed of four diamond-shaped support units, the present invention utilizes the support component composed of four diamond-shaped support units to capture minute seismic waves through the good sensitivity of the support component, and attenuate the vibration wave energy in a timely manner to protect the surrounding buildings, and can significantly increase the depth and stability of the shock-absorbing trench, call on deeper soil to isolate the vibration wave, and at the same time reduce the construction land area, which has practical significance and good application prospects. Therefore, the present invention can solve the problem of insufficient utilization rate of the depth of traditional shock-absorbing trenches, can be widely used in the field of engineering earthquake resistance, can give full play to the shock isolation and earthquake resistance effects of the shock-absorbing trench, and has a relatively simple structure and is convenient for manufacturing and use.

[0009] Preferably, a first gasket is provided between the first cable and the diamond-shaped support unit and between the second cable and the diamond-shaped support unit, and the first gasket is sleeved on the first bolt.

[0010] Preferably, a second gasket is provided between the third cable and the support rod and between the fourth cable and the support rod, and the second gasket is sleeved on the second bolt.

[0011] Preferably, both the first gasket and the second gasket are made of polytetrafluoroethylene.

[0012] Preferably, the support is provided on one side of the steel collar, and one of the first bolts in the support component is provided on the support.

[0013] Preferably, the support includes a bearing base and bearing plates symmetrically provided on the bearing base. The bearing base is of a U-shaped structure, and an opening groove matching the steel collar is reserved on the bearing base, and a bearing groove matching the first bolt is reserved on the bearing plate.

[0014] Preferably, the first cable, the second cable, the third cable, and the fourth cable are all made of Ni-Ti alloy.

[0015] Preferably, the prestress component includes a threaded cylinder with openings at both ends, threaded rods symmetrically threaded at both ends of the threaded cylinder, and hooks fixed at the ends of the threaded rods away from the threaded cylinder. The hooks are connected to the ends of the second cable.

[0016] In a second aspect, the invention provides the following technical solution, a method for using a shock-absorbing trench support device, using the above shock-absorbing trench support device, the method comprising:

[0017] S1. Measure the first excavation depth and excavate to the corresponding depth;

[0018] S2. Drill holes at the corresponding depth positions in the corresponding concrete wall and fix the bracket beam and the steel purlin with expansion screws;

[0019] S3. Install the bearing on the steel purlin by bolts and welding;

[0020] S4. Hoist and fix the first bolt at one end of the support component to the bearing, and weld the bearing and the support component firmly;

[0021] S5. Apply a preset prestress to both ends of the second tension cable through the prestress component to improve the stiffness of the support component;

[0022] S6. Repeat steps S1 - S5 in a cycle until the target depth of the shock-absorbing trench is excavated to complete the construction. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 Is a three-dimensional view of the shock-absorbing trench support device provided in the first embodiment of the present invention;

[0025] Figure 2 Is a three-dimensional view of the support component provided in the first embodiment of the present invention;

[0026] Figure 3 Is a three-dimensional view of the diamond-shaped support unit provided in the first embodiment of the present invention;

[0027] Figure 4 Is a structural diagram of the first gasket and the second gasket provided in the first embodiment of the present invention;

[0028] Figure 5 Is a three-dimensional view of the bearing provided in the first embodiment of the present invention;

[0029] Figure 6 Is a three-dimensional view of the prestress component provided in the first embodiment of the present invention;

[0030] Figure 7 Is a flowchart of the usage method of the shock-absorbing trench support device provided in the second embodiment of the present invention.

[0031] Description of the Reference Numerals:

[0032]

[0033]

[0034] The present invention will be further described below in conjunction with the accompanying drawings and the description of the drawings. Specific embodiments

[0035] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0036] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0038] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0039] Embodiment 1

[0040] In an embodiment of the present invention, as Figure 1 shown, a shock-absorbing ditch support device includes a steel waling 1, a support 2 provided on the steel waling 1, a support assembly 3 provided on the support 2, and a prestress assembly 4 provided on the support assembly 3;

[0041] Specifically, the steel purlin 1 is a support structure for the shock absorption trench. By welding the support 2 on the steel purlin 1, and during the subsequent construction of the shock absorption trench, welding and fixing the support component 3 on the support 2. After the installation of the support component 3, applying a certain prestress on the support component 3 through the prestress component 4, so as to improve the structural stiffness of the support group 3 to an appropriate level. Therefore, the support component 3 with good sensitivity can capture tiny seismic waves and attenuate the vibration wave energy in time to protect the surrounding buildings, and can significantly increase the depth and stability of the shock absorption trench, call on deeper soil to isolate the vibration wave, and at the same time reduce the construction land area.

[0042] As Figure 2 shown, the support component 4 includes four diamond-shaped support units 31, a first cable 32 and a second cable 33 arranged between the diamond-shaped support units 31. The four diamond-shaped support units 31 are connected end to end by four first bolts 34. The first cable 32 and the second cable 33 are respectively arranged between two opposite first bolts 34;

[0043] Specifically, the support component 4 is composed of four diamond-shaped support units 31, and adjacent diamond-shaped support units 31 are connected by first bolts 34. If the diamond-shaped support units 31 are regarded as a whole, then the support component 3 can also be regarded as a diamond-shaped support component composed of four diamond-shaped support units 31. Along the clockwise or counterclockwise direction, the four diamond-shaped support units 31 are denoted as the first unit, the second unit, the third unit and the fourth unit. The first unit, the second unit, the third unit and the fourth unit are connected end to end by first bolts 34. The first unit and the third unit are arranged in parallel, the second unit and the fourth unit are arranged in parallel, and the ends of the first unit and the third unit are arranged above the ends of the second unit and the fourth unit, or the ends of the first unit and the third unit are arranged below the ends of the second unit and the fourth unit. At the same time, the first cable 32 and the second cable 33 are vertically arranged in the diamond-shaped support component 3, and the length of the first cable 32 is greater than that of the second cable 33. Therefore, the first cable 32 is equivalent to the long diagonal of the diamond structure composed of four diamond-shaped support units 31, and the second cable 32 is equivalent to the short diagonal of the diamond structure composed of four diamond-shaped support units 31. In this way, the diamond-shaped support unit 31, the first cable 32 and the second cable 33 are combined to form a diamond-shaped and relatively sensitive support component 3, so as to capture tiny seismic waves and attenuate the vibration wave energy in time to protect the surrounding buildings.

[0044] As Figure 3As shown, the diamond-shaped support unit 31 includes four support rods 311, a third tension cable 312 and a fourth tension cable 313 disposed between the support rods 311. The four support rods 311 are connected end to end through four second bolts 314. The third tension cable 312 and the fourth tension cable 313 are respectively disposed between two opposite second bolts 314;

[0045] Specifically, similar to the support assembly 3, the diamond-shaped support unit 31 is composed of four support rods 311. And between two adjacent support rods 311 there are second bolts 314. If the support rods 311 are regarded as a whole, then the support assembly 3 can also be regarded as a diamond-shaped support unit composed of four support rods 311. Along the clockwise or counterclockwise direction, the four support rods 311 are denoted as the first support rod, the second support rod, the third support rod and the fourth support rod. The first support rod, the second support rod, the third support rod and the fourth support rod are connected end to end through second bolts 314. The first support rod and the third support rod are arranged in parallel, and the second support rod and the fourth support rod are arranged in parallel. And the ends of the first support rod and the third support rod are located above the ends of the second support rod and the fourth support rod, or the ends of the first support rod and the third support rod are located below the ends of the second support rod and the fourth support rod. At the same time, the third tension cable 312 and the fourth tension cable 313 are vertically disposed inside the diamond-shaped support assembly 3, and the length of the third tension cable 312 is greater than that of the fourth tension cable 313. Therefore, the third tension cable 312 is equivalent to the long diagonal of the diamond structure composed of the four support rods 311, and the fourth tension cable 313 is equivalent to the short diagonal of the diamond structure composed of the four support rods 311. In this way, the four support rods 311, the third tension cable 312 and the fourth tension cable 313 cooperate to form a diamond-shaped and relatively sensitive diamond-shaped support unit 31, which can capture tiny seismic waves and attenuate the vibration wave energy in time to protect the surrounding buildings.

[0046] Among them, the first tension cable 32 and the second tension cable 33 are vertically arranged, the third tension cable 312 and the fourth tension cable 313 are vertically arranged, and the prestress assembly 4 is connected to both ends of the second tension cable 33;

[0047] Specifically, the prestress assembly 4 can apply a certain prestress to both ends of the second tension cable 312, so that the second tension cable 312 is tightened to a certain degree, which can improve the overall stiffness of the structure, solve the problem of insufficient utilization rate of the depth of the traditional shock-absorbing trench, can be widely used in the field of engineering earthquake resistance, can give full play to the shock isolation and earthquake resistance effect of the shock-absorbing trench, and has a relatively simple structure and is convenient for manufacturing and use;

[0048] It is worth mentioning that the prestressing component 4 can also be provided at both ends of the first tension cable 32. However, since the length of the first tension cable 32 is greater than that of the second tension cable 33, in order to save costs and facilitate operation, the prestressing component 4 is provided at both ends of the second tension cable 33 to facilitate the process of applying prestress.

[0049] As Figure 4 shown, in this embodiment, a first gasket 35 is provided between the first tension cable 32 and the diamond-shaped support unit 31 and between the second tension cable 33 and the diamond-shaped support unit 31. The first gasket 35 is sleeved on the first bolt 34;

[0050] Specifically, by providing the first gasket 35, the friction between the first tension cable 32 and the diamond-shaped support unit 31 and between the second tension cable 33 and the diamond-shaped support unit 31 can be reduced, so as to provide a good working environment for dissipating seismic waves for the first tension cable 32 and the second tension cable 33.

[0051] In this embodiment, a second gasket 315 is provided between the third tension cable 312 and the support rod 311 and between the fourth tension cable 313 and the support rod 311. The second gasket 315 is sleeved on the second bolt 314;

[0052] Specifically, by providing the second gasket 315, the friction between the third tension cable 312 and the support rod 311 and between the fourth tension cable 313 and the support rod 311 can be reduced, so as to provide a good working environment for dissipating seismic waves for the third tension cable 312 and the fourth tension cable 313.

[0053] In this embodiment, both the first gasket 35 and the second gasket 315 are made of polytetrafluoroethylene;

[0054] Specifically, the first gasket 35 and the second gasket 315 made of polytetrafluoroethylene have a relatively smooth surface, which is used to reduce the frictional resistance between components and provide a good working environment for dissipating seismic waves for the tension cable. In the present invention, seismic waves are dissipated through the support component 3 and the hysteresis of materials. To achieve this purpose, a structure with relatively flexible movement is required. Using polytetrafluoroethylene gaskets is a relatively economical and ideal solution.

[0055] In this embodiment, the support 2 is provided on one side of the steel collar 1, and one of the first bolts 34 in the support component 3 is provided on the support 2;

[0056] Specifically, by installing the support component 3 on the support 2, the overall construction of the shock-absorbing trench can be completed. By installing the first bolt 34 at one end of the support component 3 on the support 2, it is convenient to weld the support component 3 to the support 2 in subsequent steps.

[0057] As Figure 5 shown, in this embodiment, the support 2 includes a bearing base 21 and bearing plates 23 symmetrically arranged on the bearing base 21. The bearing base 21 is of a U-shaped structure, and an opening groove matching the steel girt 1 is reserved on the bearing base 21. A bearing groove matching the first bolt 34 is reserved on the bearing plate 23;

[0058] Specifically, when installing the support 2 and the support component 3, the opening groove in the support 2 is welded and fixed in cooperation with the steel girt 1. Then, one of the first bolts 34 in the support component 3 is placed in the matching bearing groove, and the first bolt 34 is welded to the support 2 to complete the installation of the support component 3 and the support 2.

[0059] In this embodiment, the first cable 32, the second cable 33, the third cable 312, and the fourth cable 313 are all made of Ni-Ti alloy;

[0060] Specifically, Ni-Ti alloy has good shape memory metal properties. The phase change properties and good hysteresis properties of Ni-Ti alloy are used to slowly release energy to reduce or block the energy transfer of seismic waves.

[0061] As Figure 6 shown, in this embodiment, the prestressing component 4 includes a threaded cylinder 41 with openings at both ends, threaded rods 42 symmetrically threaded at both ends of the threaded cylinder 41, and hooks 43 fixed at the ends of the threaded rods 42 away from the threaded cylinder. The hooks 43 are connected to the ends of the second cable 33;

[0062] Specifically, during the actual prestressing process, the hooks 43 are hooked on both ends of the second cable 33, and the threaded cylinder 41 is rotated inward, so that the prestressing can be loaded by the overall shortening deformation of the second cable 33.

[0063] Embodiment Two

[0064] In the second embodiment of the present invention, as Figure 7 shown, a method for using a shock-absorbing trench support device uses the shock-absorbing trench support device described in Embodiment One. The method includes:

[0065] S1. Measuring the first excavation depth and excavating to the corresponding depth;

[0066] S2. Drilling holes at the corresponding depth positions of the corresponding concrete wall and fixing the corbel beam and the steel girt 1 with expansion screws;

[0067] S3. Installing the support 2 on the steel girt 1 by bolts and welding;

[0068] S4. Hoist and fix the first bolt 34 at one end of the support assembly 3 to the support 2, and weld the support 2 and the support assembly 3 firmly.

[0069] Specifically, during the process of firmly welding the support 2 and the support assembly 3, the fixation between the support 2 and the support assembly 3 can be achieved by welding and fixing the first bolt 34 to the bearing groove on the support 2. At the same time, during the actual installation process, the support assembly 3 is arranged between the two steel wales 1, and correspondingly, there are two supports 2, which are respectively arranged at both ends of the support assembly 3.

[0070] During the process of step S4, it is necessary to realize the assembly process of installing the support assembly 3. The assembly process of the support assembly 3 is as follows:

[0071] First, put the two ends of the third tension cable 312 and the fourth tension cable 313 on the four second bolts 314 respectively. Then, fix the third tension cable 312 and the fourth tension cable 313 with the second bolts 314 on the four diamond-shaped support rods 311 to form four diamond-shaped support units 31. And place the second gaskets 315 on the contact surfaces of the third tension cable 312, the fourth tension cable 313 and the support rods 311. Then, put the two ends of the first tension cable 32 and the second tension cable 33 on the four diamond-shaped support units 31 respectively, connect the first bolts 34, and install the first gaskets 35 on the contact surfaces of the first tension cable 32, the second tension cable 33 and the diamond-shaped support units 31, thus completing the assembly of the support assembly 3.

[0072] S5. Apply a preset prestress at the two ends of the second tension cable 33 through the prestress component 4 to improve the stiffness of the support assembly 3.

[0073] S6. Repeat steps S1 - S5 cyclically until the target depth of the shock-absorbing trench is excavated to complete the construction.

[0074] In summary, for the shock-absorbing trench support device and its usage method in the above embodiments of the present invention, by setting the support assembly 3, and the support assembly is composed of four diamond-shaped support units 31. The present invention uses the support assembly 3 composed of four diamond-shaped support units 31 to capture tiny seismic waves through the good sensitivity of the support assembly 3, and timely attenuate the vibration wave energy to achieve the effect of protecting the surrounding buildings. And it can significantly increase the depth and stability of the shock-absorbing trench, utilize the deeper soil layer to isolate the vibration wave, and at the same time reduce the construction land area. It has practical significance and good application prospects. Therefore, the present invention can solve the problem of insufficient depth utilization rate of the traditional shock-absorbing trench, can be widely used in the field of engineering earthquake resistance, can give full play to the shock isolation and earthquake resistance effect of the shock-absorbing trench, and has a relatively simple structure and is convenient for manufacturing and use.

[0075] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A shock-absorbing ditch support device, characterized in that, It includes a steel collar, a support provided on the steel collar, a support component provided on the support, and a prestressing component provided on the support component; The support component includes four diamond-shaped support units, a first tension cable and a second tension cable provided between the diamond-shaped support units. The four diamond-shaped support units are connected end to end by four first bolts, and the first tension cable and the second tension cable are respectively provided between two opposite first bolts; The diamond-shaped support unit includes four support rods, a third tension cable and a fourth tension cable provided between the support rods. The four support rods are connected end to end by four second bolts, and the third tension cable and the fourth tension cable are respectively provided between two opposite second bolts; Wherein, the first tension cable and the second tension cable are arranged perpendicularly, the third tension cable and the fourth tension cable are arranged perpendicularly, and the prestressing component is connected to both ends of the second tension cable.

2. The shock-absorbing ditch support device according to claim 1, wherein First gaskets are provided between the first tension cable and the diamond-shaped support unit and between the second tension cable and the diamond-shaped support unit, and the first gaskets are sleeved on the first bolts.

3. The shock-absorbing trench support device according to claim 2, characterized in that, Second gaskets are provided between the third tension cable and the support rod and between the fourth tension cable and the support rod, and the second gaskets are sleeved on the second bolts.

4. The shock-absorbing ditch support device according to claim 3, characterized in that, Both the first gasket and the second gasket are made of polytetrafluoroethylene.

5. The shock-absorbing ditch support device according to claim 1, wherein The support is provided on one side of the steel collar, and one of the first bolts in the support component is provided on the support.

6. The shock-absorbing ditch support device according to claim 5, characterized in that, The support includes a bearing base and bearing plates symmetrically provided on the bearing base. The bearing base is of a U-shaped structure, and an opening groove matching the steel collar is reserved on the bearing base, and a bearing groove matching the first bolt is reserved on the bearing plate.

7. The shock-absorbing trench support device according to claim 1, characterized in that The first tension cable, the second tension cable, the third tension cable and the fourth tension cable are all made of Ni-Ti alloy.

8. The shock-absorbing trench support device according to claim 1, characterized in that, The prestressing component includes a threaded cylinder with openings at both ends, threaded rods symmetrically threaded at both ends of the threaded cylinder, and hooks fixedly provided at the ends of the threaded rods away from the threaded cylinder. The hooks are connected to the ends of the second tension cable.

9. A method for using a shock-absorbing trench support device, which utilizes the shock-absorbing trench support device according to any one of claims 1-8, characterized in that, The method includes: S1. Measure the primary excavation depth and excavate to the corresponding depth; S2. Drill holes at the corresponding depth positions of the corresponding concrete wall and fix the corbel beam and the steel collar with expansion screws; S3. Install the support on the steel collar by bolts and welding; S4. Hoist and fix the first bolt at one end of the support component to the support, and weld the support and the support component firmly; S5. Apply a preset prestress to both ends of the second tension cable through the prestressing component to improve the stiffness of the support component; S6. Repeat steps S1 to S5 cyclically until the target depth of the shock-absorbing trench is excavated to complete the construction.

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