Water subsidence monitoring pile for coal mining subsidence area

Abstract

The utility model discloses a coal mining subsidence area water area subsidence monitoring pile which comprises a monitoring platform, supporting legs and inserting pipes, the bottom of the monitoring platform is provided with a plurality of supporting legs to form a pile foundation structure, the number of the inserting pipes corresponds to that of the supporting legs, and each inserting pipe sequentially penetrates through the monitoring platform and the supporting legs and extends out of the supporting legs. And each insertion pipe is correspondingly fixed with the corresponding supporting leg. The monitoring pile has the advantages that the monitoring pile can be disassembled and installed, the pile foundation structure formed by the monitoring platform and the multiple supporting legs is roughly fixed in sludge, and then the inserting pipe penetrates through the monitoring platform and the supporting legs, extends out of the supporting legs and is inserted into the sludge depth in a water area; the pile foundation structure is stably fixed in the water area under the condition that water is not pumped at the preset installation position of the monitoring pile, coal mining subsidence monitoring in the water area is achieved, and therefore the problem that it is difficult to arrange the coal mining subsidence monitoring pile in the water area is well solved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological measurement, in particular to a water area subsidence monitoring pile in a coal mining subsidence area. Background Art

[0002] In order to accumulate data from coal mining surface observation stations and analyze the laws of surface movement and deformation, fixed monitoring piles for surface deformation are currently deployed in coal mining areas in my country to monitor coal mining subsidence areas. Ordinary monitoring piles in non-water areas are basically pre-buried square platform markers, and the GNSS deformation real-time monitoring system is installed on prefabricated poles or stainless steel vertical poles. However, in submerged waters with a water depth of more than 1.5 meters, it is basically impossible to deploy pre-buried markers. There are also many inconveniences in burying prefabricated poles for the GNSS monitoring system, which brings certain difficulties to the monitoring of coal mining subsidence in waters. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to realize coal mining subsidence monitoring in water areas.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A water subsidence monitoring pile for a coal mining subsidence area comprises a monitoring platform, supporting legs and insert pipes. A plurality of supporting legs are arranged at the bottom of the monitoring platform to form a pile foundation structure. The number of the insert pipes corresponds to the number of the supporting legs. Each insert pipe passes through the monitoring platform and the supporting legs in sequence and extends out of the supporting legs. Each insert pipe is fixed to a corresponding supporting leg.

[0006] The monitoring pile can be installed in a split manner. It is first roughly fixed in the mud through the pile foundation structure formed by the monitoring platform and multiple supporting legs. Then, a pipe is inserted through the monitoring platform and the supporting legs and the supporting legs are extended to insert deep into the mud in the water area. The pile foundation structure is stably fixed in the water area without pumping water at the preset installation position of the monitoring pile, thereby realizing coal mining subsidence monitoring in the water area, thereby better solving the problem of difficulty in setting coal mining subsidence monitoring piles in the water area.

[0007] Preferably, the monitoring platform comprises a platform body and a vertical rod, the vertical rod is fixed to the top of the platform body, and a plurality of supporting legs are fixed to the bottom of the platform body.

[0008] Preferably, a first mounting hole is provided on the platform body, the vertical rod comprises a rod body and a mounting base plate, the rod body passes through the mounting base plate and is fixedly connected to the mounting base plate, the bottom of the rod body can be inserted into the first mounting hole, and the mounting base plate is fixed to the platform body.

[0009] Preferably, the bottom of the monitoring platform is rectangular, and the tops of the supporting legs are fixed along the four corner ends of the bottom of the monitoring platform.

[0010] Preferably, the bottom of the supporting leg is expanded in a direction away from the center of the monitoring platform.

[0011] Preferably, a reinforcement beam is fixed between the support legs.

[0012] Preferably, the insertion rod is arranged along the length direction of the supporting leg.

[0013] Preferably, the supporting leg comprises a channel steel, a fixing plate, a guide ring and a locking screw. The top of the channel steel is connected to the monitoring platform through the fixing plate. A plurality of guide rings are provided on the channel steel. The insert pipe passes through the monitoring platform, the fixing plate and the guide ring in sequence and extends along the length direction of the supporting leg. A plurality of locking threaded holes are provided on the channel steel. The locking screw is threadedly matched with the locking threaded hole and tightens the insert pipe.

[0014] Preferably, the cannula is formed by connecting a plurality of cannula bodies, one end of the cannula body is provided with an internal thread, and the other end is provided with an external thread matching the internal thread, wherein the bottom cannula body has only the top portion provided with an external thread.

[0015] Preferably, the bottom of the cannula is conical.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The monitoring pile can be installed in a split manner. First, the pile foundation structure formed by the monitoring platform and multiple supporting legs is roughly fixed in the silt. Then, a pipe is inserted through the monitoring platform and the supporting legs and the supporting legs are extended to insert the deep silt in the water area. The pile foundation structure is stably fixed in the water area without pumping water at the preset installation position of the monitoring pile, thereby realizing coal mining subsidence monitoring in the water area, thereby better solving the problem of difficulty in setting coal mining subsidence monitoring piles in the water area.

[0018] 2. The cannula is guided by the guide ring to ensure that the cannula extends along the length of the support leg, thereby preventing the cannula from being deflected when it is moved downward.

[0019] 3. By setting up reinforcement beams, the connection strength and rigidity between the support legs are increased.

[0020] 4. The end of the plug body at the bottom away from the external thread is tapered, which facilitates the insertion of the plug into the deep of harder silt and ensures that the pile foundation structure is stably fixed in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the platform body of the utility model embodiment;

[0023] Figure 3 This is a schematic diagram of the structure of the vertical rod of the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the support leg of an embodiment of the utility model;

[0025] Figure 5 It is a schematic structural diagram of the cannula body according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further explained in conjunction with the drawings in the specification.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically limited.

[0029] See also Figure 1 This embodiment discloses a water area subsidence monitoring pile for coal mining subsidence areas, including a monitoring platform 1, support legs 2 and an intubation pipe 3.

[0030] See also Figures 1 to 3 The monitoring platform 1 includes a platform body 11 and a vertical rod 12. The top of the platform body 11 is fixed with a vertical rod 12 for fixing the GNSS deformation monitoring system. Specifically, a first mounting hole 111 is provided on the platform body 11. The vertical rod 12 includes a rod body 121 and a mounting base plate 122. The rod body 121 penetrates the mounting base plate 122 and is welded and fixed to the mounting base plate 122. The bottom of the rod body 121 can be inserted into the first mounting hole 111. The mounting base plate 122 is fixed to the platform body 11 by bolts. The bottom of the rod body 121 can be inserted into the first mounting hole 111 to achieve positioning of the rod body 121 during installation, and then the mounting base plate 122 is fixed to the platform body 11 by bolts.

[0031] Furthermore, a plurality of reinforcing ribs 123 are provided on the installation base plate 122 , and a plurality of annular protrusions 124 are sleeved on the rod body 121 .

[0032] The platform body 11 is rectangular or circular. In this embodiment, the platform body 11 is rectangular, the top of the support leg 2 is fixed along the four corner ends of the bottom of the platform body 11 to form a pile foundation structure, and the bottom of the support leg 2 is expanded in a direction away from the center of the monitoring platform 1, so that the bottom width of the pile foundation structure is greater than the top width, ensuring the stability of the later installation of the monitoring pile. When the platform body 11 is circular, at least three support legs 2 are provided, and are evenly distributed along the circumference of the platform body 11.

[0033] For details, see Figure 4 The support leg 2 includes a channel steel 21, a fixing plate 22, a guide ring 23 and a locking screw (not shown in the figure). The top of the channel steel 21 is connected to the bottom angle of the platform body 11 through the fixing plate 22. A plurality of guide rings 23 are welded on the channel steel 21. The insert 3 sequentially passes through the platform body 11, the fixing plate 22, and the guide ring 23 and extends along the length direction of the support leg 2. The insert 3 is guided by the guide ring 23 to ensure that the insert 3 extends along the length direction of the support leg 2, thereby preventing the insert 3 from being deflected when it is sleeved downward. A plurality of locking threaded holes 211 are provided on the channel steel 21. The locking screw is threadedly matched with the locking threaded holes 211 and presses against the insert 3 to fix the insert 3 and prevent the insert 3 from shaking and moving up and down on the support leg 2.

[0034] Furthermore, the four corner ends of the platform body 11 are respectively provided with second mounting holes 112, and the fixing plate 22 is provided with a third mounting hole 221 corresponding to the second mounting hole 112, and the insert 3 sequentially passes through the second mounting hole 112, the third mounting hole 221, and the guide ring 23 and extends along the length direction of the support leg 2.

[0035] Furthermore, a reinforcement beam 4 is fixed between the channel steels 21 to increase the connection strength and rigidity between the support legs 2, wherein both ends of the reinforcement beam 4 are connected to the channel steels 21 by bolts.

[0036] See also Figure 5 The cannula 3 is formed by connecting a plurality of cannula bodies 31, one end of the cannula body 31 is provided with an internal thread, and the other end is provided with an external thread matching the internal thread, wherein the bottom cannula body 21 has only the top provided with an external thread.

[0037] Furthermore, the end of the bottommost inserting pipe body 21 away from the external thread is tapered, which facilitates the insertion of the inserting pipe 3 into the deep of harder silt, ensuring that the pile foundation structure is stably fixed in the water area.

[0038] The installation process of this embodiment is as follows:

[0039] Step 1: First, fix the support legs 2 on the platform body 11 to form a pile foundation structure;

[0040] Step 2: Use a small boat to transport the assembled pile foundation structure, the insert pipe body 31 and the vertical rod 12 to the preset installation position of the monitoring pile;

[0041] Step 3: Put the pile foundation structure into the water as a whole, and gradually insert the bottom end of the channel steel 21 into the softer mud at the bottom of the water. After the pile foundation structure is stable as a whole, insert the insert pipe body 31 through the second installation hole 112, the third installation hole 221, and the guide ring 23 in sequence to insert into the inner cavity of the channel steel 21, and then successively connect multiple insert pipe bodies 31 to form an insert pipe 3 and extend it downward along the length direction of the channel steel 21 until the bottom insert pipe body 31 is inserted into the deep of the harder mud, completing the installation of the insert pipe 3 at the first corner end of the platform body 11, and fixing the insert pipe 3 by threading the locking screw with the locking threaded hole 211 and tightening the insert pipe 3; then repeat the above process to complete the installation of the insert pipe 3 at the other three corner ends;

[0042] Step 4: Insert the bottom of the rod body 121 into the first mounting hole 111 on the platform body 11 , then fix the mounting base plate 122 to the platform body 11 by bolts, and then fix the GNSS deformation monitoring system on the rod body 121 .

[0043] The monitoring piles in this embodiment can be installed in a split manner. First, the pile foundation structure formed by the monitoring platform and a plurality of supporting legs is roughly fixed in the mud. Then, the monitoring platform 1 and the supporting legs 2 are penetrated by the insert pipe 3 and the supporting legs 2 are extended to insert the supporting legs 2 into the mud deep in the water area. The pile foundation structure is stably fixed in the water area without pumping water at the preset installation position of the monitoring pile, thereby realizing coal mining subsidence monitoring in the water area, thereby better solving the problem of difficulty in setting coal mining subsidence monitoring piles in the water area.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0045] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.

Claims

1. A water subsidence monitoring pile in a coal mining subsidence area, characterized by: It includes a monitoring platform, supporting legs and inserting pipes. A plurality of supporting legs are arranged at the bottom of the monitoring platform to form a pile foundation structure. The number of the inserting pipes corresponds to the number of the supporting legs. Each inserting pipe passes through the monitoring platform and the supporting legs in sequence and extends out of the supporting legs. Each inserting pipe is fixed to the corresponding supporting leg.

2. A coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: The monitoring platform comprises a platform body and a vertical rod, the vertical rod is fixed on the top of the platform body, and a plurality of supporting legs are fixed on the bottom of the platform body.

3. A coal mining subsidence area water area subsidence monitoring pile according to claim 2, characterized in that: The platform body is provided with a first mounting hole, the vertical rod comprises a rod body and a mounting base plate, the rod body penetrates the mounting base plate and is fixedly connected to the mounting base plate, the bottom of the rod body can be inserted into the first mounting hole, and the mounting base plate is fixed to the platform body.

4. The coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: The bottom of the monitoring platform is rectangular, and the tops of the supporting legs are fixed along the four corner ends of the bottom of the monitoring platform.

5. A coal mining subsidence area water area subsidence monitoring pile according to claim 4, characterized in that: The bottom of the support leg is expanded in a direction away from the center of the monitoring platform.

6. The coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: A reinforcement beam is also fixed between the support legs.

7. The coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: The insert tube is arranged along the length direction of the supporting leg.

8. The coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: The support leg includes a channel steel, a fixed plate, a guide ring, and a locking screw. The top of the channel steel is connected to the monitoring platform through the fixed plate. A plurality of guide rings are arranged on the channel steel. The insert pipe passes through the monitoring platform, the fixed plate, and the guide ring in sequence and extends along the length direction of the support leg. A plurality of locking threaded holes are arranged on the channel steel. The locking screw is threadedly matched with the locking threaded hole and tightens the insert pipe.

9. The coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: The cannula is formed by connecting a plurality of cannula bodies, one end of the cannula body is provided with an internal thread, and the other end is provided with an external thread matching the internal thread, wherein the cannula body at the bottom is only provided with an external thread at the top.

10. The coal mining subsidence area water area subsidence monitoring pile according to claim 1, characterized in that: The bottom of the cannula is arranged in a conical shape.

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