Support device for shield connecting pipeline and control method for connecting pipeline

Abstract

The present invention discloses a support device for a shield connecting pipeline and a method for controlling the connecting pipeline. The device includes: a base arranged at the upper port of a shield working shaft; a gantry including two columns and a crossbeam, wherein the two columns are respectively erected on opposite sides of the base, and the crossbeam is connected to the two columns; a first roller for the connecting pipeline to be placed, rotatably mounted on the two columns and arranged below the crossbeam, with a guide space for the connecting pipeline to be passed through formed between the first roller and the crossbeam; a second roller for the connecting pipeline to be placed, the second roller being arranged in the same direction as the first roller; and a strap for being movably sleeved on the connecting pipeline, which is movably mounted on the crossbeam. The present invention solves the problem of difficulty in controlling the connecting pipeline between the shield main machine and the supporting trailer that has not been lowered into the shaft after the shield main machine is lowered into the shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of shield construction, and in particular to a supporting device for a shield connecting pipeline and a control method for the connecting pipeline. Background Art

[0002] In recent years, with the rapid development of urban subway tunnels, shield construction methods have become increasingly mature and have been widely used in tunnels such as coal mines, electricity, and water supply. The total length of the shield machine is generally 100 meters, and the working shafts for electricity and water conservancy are generally 20 meters. In order to reduce project costs, reduce project land, and save construction costs during the construction of power and water supply tunnels, the shield working shaft is generally only sufficient for the shield machine to be lowered into the shaft, and the shield rear trailer is placed on the ground. The shield machine lowered into the shaft is connected to the shield rear trailer through an extended connecting pipeline. The ground part of the connecting pipeline, the part extending into the working shaft, and the part extending to the shield machine (meeting the rear supporting connection length) are more than 150 meters long in total, and the number of various connecting pipelines is as many as 100 or more.

[0003] Such a large number of long connecting pipelines need to be placed on the ground of the working shaft, extended to the working shaft, and then lowered into the working shaft, and kept pace with the forward movement of the shield machine. The connecting pipelines are long and heavy, and they also contain media such as oil and water. In addition, the depth of the working shaft is generally over 20 meters. Under the action of gravity, the connecting pipelines tend to slide down automatically in the working shaft, making it difficult to control. The connecting pipelines are prone to confusion, rotation, and entanglement. When the connecting pipelines leak (leakage of media such as oil and water) it is difficult to find the leak point, which affects the construction progress. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, a support device for a shield connecting pipeline and a method for controlling the connecting pipeline are provided to solve the problem that the connecting pipeline between the shield main machine and the subsequent supporting trailer that has not been lowered into the well is difficult to control after the shield main machine is lowered into the well.

[0005] To achieve the above-mentioned purpose, a support device for a shield connecting pipeline is provided, comprising:

[0006] A base provided at the upper end of the shield working shaft;

[0007] The gantry comprises two columns and a crossbeam, wherein the two columns are respectively erected on opposite sides of the base, and the crossbeam is connected to the two columns;

[0008] A first roller for placing the connecting pipeline is rotatably mounted on the two columns and arranged below the crossbeam, with a guide space for the connecting pipeline to pass through formed between the first roller and the crossbeam;

[0009] a second roller for the connecting pipeline to rest on, the second roller being arranged in the same direction as the first roller; and

[0010] A strap for being movably sleeved on the connecting pipeline is installed on the beam in a liftable manner.

[0011] Furthermore, an oblique brace is obliquely connected between the column and the base.

[0012] Furthermore, the first roller is rotatably mounted on the diagonal support.

[0013] Furthermore, the first roller is located above the second roller.

[0014] Furthermore, the oblique support is fixed with a first ear plate, the first ear plate is provided with a first shaft hole, and the first roller is rotatably inserted into the first shaft hole.

[0015] Furthermore, the crossbeam is equipped with a hand hoist, and the strap is connected to the hand hoist.

[0016] Furthermore, the hand hoist is arranged on a side of the beam facing the second roller.

[0017] Furthermore, a second ear plate is vertically provided on the base, and a second shaft hole is opened in the second ear plate, and the second roller is rotatably provided in the second shaft hole.

[0018] The present invention provides a method for controlling a connecting pipeline, comprising the following steps:

[0019] Install the base on the upper port of the shield machine so that the guide space is aligned with the upper port;

[0020] The middle portion of the connecting pipeline is sequentially passed through the guide space and the belt, and placed on the first roller and the second roller. The first end of the connecting pipeline is then extended into the working pit and connected to the shield machine. The second end of the connecting pipeline is connected to the shield supporting trailer provided outside the shield working pit.

[0021] The shield machine advances forward, and at the same time the belt descends to allow the middle part of the connecting pipeline to rest on the first roller and the second roller, so that the shield machine pulls the connecting pipeline forward. When the shield machine is in a non-propelled state, the belt rises to pull the connecting pipeline upward to prevent the connecting pipeline from sliding down into the working well.

[0022] The beneficial effects of the present invention are that the support device for the shield connecting pipeline of the present invention is installed at the edge of the upper port of the shield working shaft, the guide space is aligned with the upper port of the shield working shaft, and the connecting pipeline is connected to the shield supporting trailer, and is passed through the guide space and the belt, and is placed on the first roller and the second roller respectively. Then, the connecting pipeline is extended to the bottom plate of the working shaft and then connected to the shield machine main body. Under the action of its own gravity and the rolling friction with the first roller and the second roller, on the one hand, the connecting pipeline can be prevented from being damaged by dry friction. On the other hand, the liftable belt can be bundled and connected with the connecting pipeline in a classified manner, which can prevent the connecting pipeline from sliding down or sliding down too fast under the action of gravity, thereby achieving the speed control of the connecting pipeline. In addition, as the shield main body advances forward, the connecting pipeline is released in an orderly manner through the belt after each advance of a certain distance, thereby preventing the connecting pipeline from being entangled or knotted. Even if the connecting pipeline leaks, it can be quickly found and repaired, thereby achieving the protection of the connecting pipeline and orderly management of the connecting pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 This is a schematic structural diagram of a support device for a shield connecting pipeline according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the use status of the support device for the shield connecting pipeline according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Figure 1 This is a structural diagram of a support device for a shield connecting pipeline according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the use status of the support device for the shield connecting pipeline according to an embodiment of the present invention.

[0029] Reference Figure 1 and Figure 2 As shown, the present invention provides a support device for shield-connected pipelines, comprising: a base 1, a gantry 2, a first roller 3, a second roller 4 and a strap 5.

[0030] The base 1 is installed at the upper port of the shield working shaft 6.

[0031] The gantry 2 includes two columns 21 and a crossbeam 22 .

[0032] Specifically, two columns 21 are respectively vertically arranged on opposite sides of the base 1 , and a crossbeam 22 is connected to the two columns 21 .

[0033] The first roller 3 is rotatably mounted on the two upright posts 21 and disposed below the crossbeam 22 , with a guide space formed between the first roller 3 and the crossbeam 22 for the connecting pipeline 7 to pass through. The first roller 3 is used to place the connecting pipeline 7 .

[0034] The second roller 4 is arranged in the same direction as the first roller 3 and is located below the first roller 3. The second roller 4 is used for placing the connecting pipeline 7.

[0035] The strap 5 is used to be movably sleeved on the connecting pipeline 7. The strap 5 is installed on the crossbeam 22 in a liftable manner.

[0036] The support device of the shield connecting pipeline of the present invention is installed on the edge of the upper port of the shield working shaft, and the guide space is aligned with the upper port of the shield working shaft. After the connecting pipeline is connected to the shield supporting trailer, it is passed through the guide space and the belt, and is placed on the first roller and the second roller respectively. Then, the connecting pipeline is extended to the bottom plate of the working shaft and then connected to the shield machine main body. Under the action of its own gravity and the rolling friction with the first roller and the second roller, on the one hand, the connecting pipeline can be prevented from being damaged by dry friction. On the other hand, the lifting belt can be bundled and connected with the connecting pipeline in a classified manner, which can prevent the connecting pipeline from sliding down and sliding down too fast under the action of gravity, thereby realizing the speed control of the connection pipeline. In addition, as the shield main body advances forward, the connecting pipeline is released in an orderly manner once through the belt after each advance of a certain distance, so as to prevent the connecting pipelines from being entangled or knotted with each other. Even if the connecting pipeline leaks, it can be quickly found and repaired, thereby realizing the protection of the connecting pipeline and the orderly management of the connecting pipeline.

[0037] The support device for the shield connecting pipeline of the present invention lifts the connecting pipeline by raising and tightening the belt to prevent the connecting pipeline from sliding down into the shield working shaft; and lowers the belt and releases the connecting pipeline so that the connecting pipeline can be lowered to the bottom of the shield working shaft in an orderly manner under the traction of the shield main machine.

[0038] In this embodiment, the base and the gantry are both made of section steel.

[0039] The base is a rectangular steel frame. If conditions permit, the base can be installed at the wellhead of the shield working shaft by bolts.

[0040] As a preferred embodiment, an oblique brace 211 is obliquely connected between the two columns 21 and the base 1 .

[0041] Specifically, one side of the column close to the shield working shaft and the other side away from the shield working shaft are respectively connected with diagonal braces.

[0042] In this embodiment, a support column is further connected between the middle portion of the crossbeam and the base, and a diagonal brace is connected to the side close to the shield working pit and the other side away from the shield working pit.

[0043] In this embodiment, the first roller 3 is rotatably mounted on a plurality of diagonal supports 211 .

[0044] Specifically, the diagonal brace 211 is fixed with a first ear plate 212. The first ear plate 212 is provided with a first shaft hole. The first roller 3 is rotatably installed in the first shaft holes of the plurality of diagonal braces.

[0045] In some embodiments, the first roller is mounted in the first shaft hole through a bearing.

[0046] In this embodiment, the crossbeam 22 is equipped with a hand chain hoist 51, and the strap 5 is connected to the hand chain hoist 51. The hand chain hoist 51 is provided on a side of the crossbeam 22 facing the second roller 4.

[0047] Specifically, a connecting lug is installed on the side of the crossbeam 22 facing the second roller 4, and the hand chain hoist is hung on the connecting lug.

[0048] As a preferred embodiment, a second ear plate 11 is vertically provided on the base 1. The second ear plate 11 is provided with a second shaft hole. The second roller 4 is rotatably provided in the second shaft hole.

[0049] In some embodiments, the second roller is mounted in the second shaft hole through a bearing.

[0050] The present invention provides a method for controlling a connecting pipeline 7, comprising the following steps:

[0051] S1: Install the base 1 on the upper port of the shield machine so that the guide space is aligned with the upper port.

[0052] S2: Pass the middle part of the connecting pipeline 7 through the guide space and the belt 5 in sequence, and place it on the first roller 3 and the second roller 4. Then extend the first end of the connecting pipeline 7 into the working shaft 6 and connect it to the shield main machine. Connect the second end of the connecting pipeline 7 to the shield supporting trailer arranged outside the shield working shaft 6.

[0053] S3: The shield machine moves forward, and at the same time, the belt 5 descends and unties the connecting pipeline to release the connecting pipeline so that the middle part of the connecting pipeline 7 is placed on the first roller 3 and the second roller 4, so that the shield machine pulls the connecting pipeline 7 forward and lowers it into the shield working shaft. When the shield machine is in a non-propelled state, the belt 5 rises and tightens the connecting pipeline to pull the connecting pipeline 7 upward to prevent the connecting pipeline 7 from sliding down into the working shaft 6.

[0054] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A support device for a shield connecting pipeline, characterized in that: include: A base provided at the upper end of the shield working shaft; The gantry comprises two columns and a crossbeam, wherein the two columns are respectively erected on opposite sides of the base, and the crossbeam is connected to the two columns; A first roller for placing the connecting pipeline is rotatably mounted on the two columns and arranged below the crossbeam, with a guide space for the connecting pipeline to pass through formed between the first roller and the crossbeam; a second roller for the connecting pipeline to rest on, the second roller being arranged in the same direction as the first roller; as well as A strap for movably sleeved on the connecting pipeline, mounted on the crossbeam in a liftable manner; An oblique brace is obliquely connected between the column and the base; The crossbeam is equipped with a hand chain hoist, and the strap is connected to the hand chain hoist.

2. The support device for shield connecting pipeline according to claim 1, characterized in that: The first roller is rotatably mounted on the diagonal support.

3. The support device for shield connecting pipeline according to claim 2, characterized in that: The first roller is located above the second roller.

4. The support device for shield connecting pipeline according to claim 2, characterized in that: The oblique support is fixed with a first ear plate, the first ear plate is provided with a first shaft hole, and the first roller is rotatably inserted into the first shaft hole.

5. The shield connecting pipeline support device according to claim 1, characterized in that: The hand chain hoist is arranged on a side of the beam facing the second roller.

6. The shield connecting pipeline support device according to claim 1, characterized in that: A second ear plate is vertically arranged on the base. The second ear plate is provided with a second shaft hole. The second roller is rotatably arranged in the second shaft hole.

7. A method for controlling the connecting pipeline of a supporting device for a shield connecting pipeline according to any one of claims 1 to 6, characterized in that: The following steps are involved: Install the base on the upper port of the shield machine so that the guide space is aligned with the upper port; The middle portion of the connecting pipeline is sequentially passed through the guide space and the belt, and placed on the first roller and the second roller. The first end of the connecting pipeline is then extended into the working pit and connected to the shield machine. The second end of the connecting pipeline is connected to the shield supporting trailer provided outside the shield working pit. The shield machine advances forward, and at the same time the belt descends to allow the middle part of the connecting pipeline to rest on the first roller and the second roller, so that the shield machine pulls the connecting pipeline forward. When the shield machine is in a non-propelled state, the belt rises to pull the connecting pipeline upward to prevent the connecting pipeline from sliding down into the working well.

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