PS-InSAR corner reflector fixing structure suitable for side slope
Through the combined structure of support rods, concrete piers and fine stone concrete cast body, the connection of threaded steel bars and grooves is used to solve the stability and reliability of the angle reflector in the loose layer of the slope, achieving safe, stable and convenient replacement in extreme weather.
Patent Information
- Application Number
- CN202421945428.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In the prior art, when the slope is loose and thick, the angle reflector is fixed and unstable, and is easily damaged in extreme weather, and the replacement problem is not considered for direct casting of cement piers, resulting in poor reliability.
The combined structure of support rods, concrete piers and fine stone concrete cast body is adopted, and the slope stability layer is implanted through threaded steel bars to form a stable installation base, and the grooves and bolts are connected to ensure the stability and convenient replacement of the angle reflector.
In extreme weather, the safety and stability of the angle reflector is improved, and it is convenient for later maintenance and replacement, solving the problems of instability and poor reliability.
Smart Images
Figure CN223296130U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of slope deformation monitoring, and in particular relates to a PS-InSAR corner reflector fixing structure suitable for slopes. Background Art
[0002] Synthetic Aperture Radar (InSAR) measurement is a microwave remote sensing technique that utilizes synthetic aperture radar (SAR) imaging and interferometry. Compared to traditional optical remote sensing, InSAR is less affected by weather conditions such as clouds and fog. It enables all-day, all-weather, and large-scale Earth observation, making it widely used in fields such as three-dimensional surface reconstruction and deformation monitoring. With technological advancements, the field of deformation monitoring is expanding beyond the spatial dimension of monitoring from point to surface, focusing more on the extension of single deformation to time-series deformation monitoring. Persistent scatterer (PS) InSAR is a commonly used technique for time-series deformation monitoring. By targeting typical features that exhibit high coherence in time series, such as exposed rock masses, buildings, roads, and bridges, it can effectively overcome the effects of spatiotemporal incoherence and improve monitoring quality. Selecting PS points is often difficult in areas such as slopes covered by overburden. Corner reflectors with strong radar reflectivity, used as artificial PS points, provide stable and high-quality radiometric information on SAR images and are an effective means of addressing this problem.
[0003] In slope deformation monitoring applications, the corner reflectors are typically secured by inserting their base legs into the slope or by directly casting concrete piers. This approach has the following main drawbacks: 1. When the loose layer on the slope is thick, the stability of the corner reflector cannot be guaranteed solely by the base legs in extreme weather conditions such as strong winds and heavy rain. 2. While directly casting concrete piers effectively ensures the stability of the corner reflector, it does not consider the replacement of the corner reflector, and there is no unified standard for the casting method. Poor casting quality can seriously affect the reliability of the corner reflector. Utility Model Content
[0004] The purpose of the utility model is to overcome the problems of the existing technology and disclose a PS-InSAR corner reflector fixing structure suitable for slopes. The PS-InSAR corner reflector fixing structure of the utility model ensures the stability of the mounting base and greatly improves the safety and stability of the corner reflector in extreme weather conditions such as strong winds and heavy rains.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] A PS-InSAR corner reflector fixing structure suitable for slopes, the PS-InSAR corner reflector fixing structure comprising: a support rod, a concrete pier and a fine stone concrete casting body;
[0007] The corner reflector to be fixed is connected to the concrete pier via a support rod. The concrete pier is set on the fine stone concrete casting body. The fine stone concrete casting body is cast in the loose layer of the slope.
[0008] The concrete pier and the fine stone concrete casting body are connected to each other via pre-buried threaded steel bars, and the threaded steel bars pass through the fine stone concrete casting body and are inserted into the slope stabilization layer.
[0009] According to a preferred embodiment, anchor holes are drilled in the slope stabilization layer, and the threaded steel bars are inserted into the anchor holes.
[0010] According to a preferred embodiment, the anchoring hole is filled with an anchoring agent.
[0011] According to a preferred embodiment, a embedding groove is provided on the top of the concrete pier, and the support rod is inserted into the embedding groove.
[0012] According to a preferred embodiment, a first opening is provided at the bottom of the rod body of the support rod, a connecting rod passes through the first opening, and holes are opened at both ends of the connecting rod and are screwed to the screw holes on the top of the concrete pier respectively.
[0013] According to a preferred embodiment, the bottom of the support rod is further provided with a second opening, which is arranged perpendicular to the first opening, and a bolt is provided in the second opening to lock the position of the support rod and the connecting rod.
[0014] According to a preferred embodiment, the support rods and the connecting rods are both made of rectangular galvanized steel pipes.
[0015] According to a preferred embodiment, both ends of the support rod and the connecting rod are closed structures; and the surfaces of the support rod and the connecting rod are painted with waterproof paint.
[0016] According to a preferred embodiment, the corner reflector adopts a triangular pyramid metal structure, the surface is three isosceles triangles, and the bottom is an equilateral triangle.
[0017] According to a preferred embodiment, the corner reflector is hinged or welded to the support rod.
[0018] The aforementioned main solution and its various further options can be freely combined to form multiple solutions, all of which are solutions that can be adopted and protected by this utility model. After understanding the solution of this utility model, those skilled in the art will understand that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by this utility model, and these are not exhaustive here.
[0019] Beneficial effects of the utility model:
[0020] The PS-InSAR corner reflector fixing structure provides a stable mounting base for the corner reflector device by rationally casting concrete piers. At the same time, connecting rods and support rods are set on the corner reflector device. The corner reflector is tightly fixed to the concrete pier using screw holes and grooves on the top of the pier. This effectively solves the safety and stability issues of the corner reflector in extreme weather conditions such as strong winds and heavy rain. The embedded and bolted fixing method facilitates the subsequent maintenance and replacement of the corner reflector device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic structural diagram of the PS-InSAR corner reflector fixing structure of the utility model;
[0022] Figure 2 This is a schematic diagram of a connection between a connecting rod and a support rod of the utility model;
[0023] Figure 3 This is a top view of the concrete pier;
[0024] Among them, 1-corner reflector, 2-support rod, 3-connecting rod, 4-concrete pier, 5-threaded steel bar, 6-fine stone concrete casting body, 7-bolt, 8-screw, 9-loose layer of slope, 10-slope stabilization layer, 11-rebar hole, 12-anchor, 13-nut, 14-metal screw hole, 15-embedded groove. DETAILED DESCRIPTION
[0025] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.
[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.
[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0030] In addition, the present invention should point out that, in the present invention, unless the specific structure, connection relationship, position relationship, power source relationship, etc. are specifically written out, the structure, connection relationship, position relationship, power source relationship, etc. involved in the present invention are all known to those skilled in the art based on the existing technology without creative work.
[0031] refer to Figure 1 As shown in the figure, a PS-InSAR corner reflector fixing structure suitable for slopes is shown, and the PS-InSAR corner reflector fixing structure includes: a support rod 2, a concrete pier 4 and a fine stone concrete casting body 6.
[0032] The corner reflector 1 to be fixed is connected to the concrete pier 4 via the support rod 2. The concrete pier 4 is set on the fine stone concrete casting body. The fine stone concrete casting body is cast in the loose layer 9 of the slope.
[0033] The concrete pier 4 and the fine stone concrete casting body are connected to each other via pre-buried threaded steel bars 5 , and the threaded steel bars 5 pass through the fine stone concrete casting body and are inserted into the slope stabilization layer 10 .
[0034] Preferably, a rebar planting hole 11 is drilled in the slope stabilization layer 10, and the threaded steel bar 5 is inserted into the rebar planting hole 11. Furthermore, the rebar planting hole 11 is filled with an anchoring agent 12.
[0035] Preferably, a embedding groove 15 is provided on the top of the concrete pier 4 , and the support rod 2 is inserted into the embedding groove 15 .
[0036] Preferably, a first opening is provided at the bottom of the rod body of the support rod 2, and a connecting rod 3 passes through the first opening. Both ends of the connecting rod 3 have holes and are screwed to the screw holes 8 on the top of the concrete pier 4 through screws 8 respectively.
[0037] Furthermore, a second opening is provided at the bottom of the rod body of the support rod 2, and the second opening is arranged perpendicular to the first opening. A bolt 7 is provided in the second opening. A vertical opening is provided on the front middle part of the connecting rod 3, and its size is consistent with the hole opened on the front middle and lower part of the support rod 2. It is fixed to the support rod 2 with a bolt 7 and a nut 13.
[0038] Preferably, the support rod 2 and the connecting rod 3 are both made of rectangular galvanized steel pipes. The ends of the support rod 2 and the connecting rod 3 are closed structures; the surfaces of the support rod 2 and the connecting rod 3 are painted with waterproof paint.
[0039] Preferably, the corner reflector 1 adopts a triangular pyramid metal structure, the surface of which is three isosceles triangles and the bottom is an equilateral triangle.
[0040] Preferably, the corner reflector 1 is connected to the support rod 2 by hinged connection or welding.
[0041] Before pouring the concrete pier 4, the loose layer 9 of the slope at the installation site must be cleaned until the slope stabilization layer 10 is exposed. To ensure the stability of the rebar, four rebar holes 11 are drilled in the slope stabilization layer 10 to a depth greater than 20 cm. These holes are then cemented with cement mortar. After the threaded rebar 5 is implanted, an anchoring agent 12 is poured. Once the rebar is stable, a formwork is erected and C20 fine aggregate concrete is poured to the slope height, forming a fine aggregate concrete casting 6. After final setting, C20 fine aggregate concrete is poured approximately 50-100 cm deeper onto the concrete slope to form the concrete pier 4. The concrete pier 4 is in the form of a regular square pyramid, and a recess 15 is reserved at the top of the concrete pier 4 during pouring. After curing, metal screw holes 14 are drilled at designated locations on the top of the concrete pier 4 to facilitate the attachment of the corner reflector device to the concrete pier 4.
[0042] Preferably, 6-10 or more threaded steel bars 5 may be implanted during the pouring of the concrete pier 4 to improve the stability of the concrete pier 4 .
[0043] Preferably, during the pouring of the concrete pier 4, C20 fine aggregate concrete can be replaced with C25 or C30 fine aggregate concrete.
[0044] The PS-InSAR corner reflector fixing structure provides a stable mounting base for the corner reflector device by rationally casting concrete piers. At the same time, connecting rods and support rods are set on the corner reflector device. The corner reflector is tightly fixed to the concrete pier using screw holes and grooves on the top of the pier. This effectively solves the safety and stability issues of the corner reflector in extreme weather conditions such as strong winds and heavy rain. The embedded and bolted fixing method facilitates the subsequent maintenance and replacement of the corner reflector device.
[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A PS-InSAR corner reflector fixing structure suitable for slopes, characterized in that: The PS-InSAR corner reflector fixing structure comprises: a support rod (2), a concrete pier (4) and a fine stone concrete casting body (6); The corner reflector (1) to be fixed is connected to the concrete pier (4) via a support rod (2); the concrete pier (4) is arranged on the fine stone concrete casting body (6); and the fine stone concrete casting body (6) is cast in the loose layer (9) of the slope. The concrete pier (4) and the fine stone concrete casting body (6) are connected to each other via pre-buried threaded steel bars (5), and the threaded steel bars (5) penetrate the fine stone concrete casting body (6) and are inserted into the slope stabilization layer (10).
2. The PS-InSAR corner reflector fixing structure according to claim 1, wherein: A reinforcement hole (11) is drilled in the slope stabilization layer (10), and the threaded steel bar (5) is inserted into the reinforcement hole (11).
3. The PS-InSAR corner reflector fixing structure according to claim 2, wherein: The anchoring hole (11) is filled with an anchoring agent (12).
4. The PS-InSAR corner reflector fixing structure according to claim 1, wherein: The top of the concrete pier (4) is provided with an embedding groove (15), and the support rod (2) is inserted into the embedding groove (15).
5. The PS-InSAR corner reflector fixing structure according to claim 1, wherein: The bottom of the rod body of the support rod (2) is provided with a first opening, a connecting rod (3) passes through the first opening, and holes are opened at both ends of the connecting rod (3), which are respectively screwed to the screw holes on the top of the concrete pier via screws (8).
6. The PS-InSAR corner reflector fixing structure according to claim 5, wherein: The bottom of the support rod (2) is also provided with a second opening, which is arranged perpendicular to the first opening. A bolt (7) is provided in the second opening for locking the position of the support rod (2) and the connecting rod (3).
7. The PS-InSAR corner reflector fixing structure according to claim 5, wherein: The support rod (2) and the connecting rod (3) are both made of rectangular galvanized steel pipes.
8. The PS-InSAR corner reflector fixing structure according to claim 7, wherein: Both ends of the support rod (2) and the connecting rod (3) are closed structures; the surfaces of the support rod (2) and the connecting rod (3) are painted with waterproof paint.
9. The PS-InSAR corner reflector fixing structure according to claim 1, wherein: The corner reflector (1) adopts a triangular pyramid metal structure, the surface is three isosceles triangles, and the bottom is an equilateral triangle.
10. The PS-InSAR corner reflector fixing structure according to claim 1, wherein: The corner reflector (1) is hinged or welded to the support rod (2).