Portal water stop structure for jacking pipe receiving

Abstract

The utility model belongs to the field of water stop structures, and particularly relates to a tunnel portal water stop structure for receiving a jacking pipe, which comprises a tunnel portal steel ring fixed at a hole opening of a receiving well, the water stopping assembly is mounted on the tunnel portal steel ring; the sleeve has a first state and a second state; when the casing pipe is in the first state, the casing pipe is located in the tunnel portal steel ring, and at the moment, the water stop assembly turns inwards towards the receiving well opening and abuts against the casing pipe. After a tunnel portal steel ring and a water stopping assembly are installed, a casing pipe is put down in a receiving well, the casing pipe is pushed to enter a tunnel portal through an installed pushing structure, at the moment, the water stopping assembly is pushed away, the water stopping assembly is erected on the casing pipe in the mode of turning inwards towards the tunnel portal, and a pipe jacking machine pushes the casing pipe to enter the receiving well after tunneling to the tunnel portal of the receiving well. At the moment, the water stop assembly lapped on the casing pipe is lapped on the pipe jacking machine along with tunneling of the pipe jacking machine, the water stop assembly turns inwards to form reliable constraint with the pipe jacking machine, and therefore the effect that the pipe jacking machine receives water and stops water is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the water stop structure field, concretely relates to a hole door water stop structure for receiving pipe jacking. BACKGROUND

[0002] Most of the traditional receiving well hole door water stop is that steel strand is arranged at the hinge pressing plate and is closed into a ring, the hinge pressing plate is restrained through the radial restraint force of the ring-shaped steel strand, then the water stop rubber ring is pressed to achieve the water stop purpose, this method has certain water stop effect, but the radial restraint provided by the steel strand is limited, in the high water level stratum, the tunnel peripheral mud water pressure can often break through the water stop rubber ring and then lead to water and sand gushing, and the steel strand restraint is only applicable to the circular pipe jacking machine. SUMMARY

[0003] In order to overcome the insufficient of prior art, the utility model provides a hole door water stop structure for receiving pipe jacking, and the problems that most of the traditional receiving well hole door water stop is that steel strand is arranged at the hinge pressing plate and is closed into a ring, the hinge pressing plate is restrained through the radial restraint force of the ring-shaped steel strand, then the water stop rubber ring is pressed to achieve the water stop purpose, this method has certain water stop effect, but the radial restraint provided by the steel strand is limited, in the high water level stratum, the tunnel peripheral mud water pressure can often break through the water stop rubber ring and then lead to water and sand gushing, and the steel strand restraint is only applicable to the circular pipe jacking machine are solved.

[0004] One of the embodiments of the utility model provides a hole door water stop structure for receiving pipe jacking, which comprises:

[0005] A hole door steel ring fixed to the receiving well hole mouth;

[0006] A water stop assembly installed on the hole door steel ring;

[0007] A sleeve pipe comprising a first state and a second state;

[0008] When the sleeve pipe is in the first state, the sleeve pipe is located in the hole door steel ring, at this time, the water stop assembly is turned inward towards the receiving well hole mouth and abuts on the sleeve pipe;

[0009] When the sleeve pipe is in the second state, the sleeve pipe is located in the receiving well.

[0010] This utility model discloses a portal water-stopping structure for pipe jacking reception. After installing the portal steel ring and water-stopping components, a casing is placed in the receiving well. The casing is pushed into the portal (i.e., inside the portal steel ring) by an installed pushing structure. At this time, the water-stopping components are pushed open and are folded inwards onto the casing. After the pipe jacking machine excavates to the portal of the receiving well, it pushes the casing into the receiving well. At this time, the water-stopping components folded inwards onto the pipe jacking machine as the machine excavates, forming a reliable constraint with the pipe jacking machine, thereby achieving the effect of water-stopping reception by the pipe jacking machine.

[0011] In one embodiment, the water-stopping assembly includes a water-stopping rubber ring, a pad, a hinge pressure plate, and a fastener.

[0012] In one embodiment, the waterproof rubber ring is located on one side of the portal steel ring.

[0013] In one embodiment, the pad is located on the side of the water-stop rubber ring away from the portal steel ring.

[0014] In one embodiment, the hinge pressure plate is located on the side of the pad away from the waterproof rubber ring.

[0015] In one embodiment, the fastener sequentially fixes the water-stop rubber ring, the gasket, and the hinge pressure plate to one side of the portal steel ring.

[0016] In one embodiment, the sleeve is provided with a plurality of clamping plates arranged in a circular array.

[0017] In one embodiment, a jack socket is provided on one side of the sleeve.

[0018] In one embodiment, a guide rail is also included;

[0019] The guide rail is installed in the receiving well, and a jack is provided on the guide rail.

[0020] In one embodiment, the sleeve is disposed on the guide rail.

[0021] The above technical solution provides a portal sealing structure for pipe jacking reception, which has the following beneficial effects:

[0022] After installing the portal steel ring, water-stop rubber ring, pad, hinge pressure plate, and fasteners, a casing is lowered into the receiving shaft. The casing is pushed into the portal (i.e., inside the portal steel ring) by the installed pushing structure. At this time, the movable end of the hinge pressure plate is pushed open. After the movable end of the hinge plate is pushed open, the water-stop rubber ring is also pushed open. The movable end of the hinge plate and the water-stop rubber ring are turned inward and placed on the casing. After the pipe jacking machine excavates to the portal of the receiving shaft, it pushes the casing into the receiving shaft. At this time, the movable end of the hinge plate and the water-stop rubber ring placed on the casing are placed on the pipe jacking machine as the machine excavates. The movable end of the hinge plate and the water-stop rubber ring are turned inward and form a reliable constraint with the pipe jacking machine, thereby achieving the effect of water-stopping the pipe jacking machine. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a diagram showing the usage state of this utility model;

[0025] Figure 2 for Figure 1 Enlarged view of point A;

[0026] Figure 3 This is a side view of the sleeve of this utility model;

[0027] Figure 4 This is a diagram showing the state of the sleeve of this utility model being ejected;

[0028] Figure 5 This is a diagram illustrating the usage status of existing water-stopping structures.

[0029] The markings in the diagram are explained as follows:

[0030] 100. Portal steel ring;

[0031] 200. Water-stopping components;

[0032] 210. Water-stop rubber ring; 220. Pad; 230. Hinge pressure plate; 240. Fastener;

[0033] 300, sleeve;

[0034] 400, pallet;

[0035] 500. Jack socket;

[0036] 600, guide rail;

[0037] 700, Jack. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0041] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0042] Combination Figures 1 to 5 As shown, one embodiment of this utility model provides a water-stopping structure for a tunnel entrance for pipe jacking reception, comprising:

[0043] A steel ring 100 for the entrance of the receiving well is fixed to the well opening;

[0044] Water-stopping component 200, which is installed on the portal steel ring 100;

[0045] Sleeve 300, the sleeve 300 includes a first state and a second state;

[0046] When the casing 300 is in the first state, the casing 300 is located inside the portal steel ring 100. At this time, the water-stopping component 200 is turned inward toward the receiving well opening and abuts against the casing 300.

[0047] When the casing 300 is in the second state, the casing 300 is located inside the receiving well.

[0048] This utility model discloses a portal water-stopping structure for pipe jacking reception. After installing the portal steel ring 100 and water-stopping component 200, a casing 300 is placed in the receiving well. The casing 300 is pushed into the portal (i.e., inside the portal steel ring 100) by the installed pushing structure. At this time, the water-stopping component 200 is pushed open and is folded inwards towards the portal and placed on the casing 300. After the pipe jacking machine excavates to the portal of the receiving well, it pushes the casing 300 into the receiving well. At this time, the water-stopping component 200 placed on the casing 300 is placed on the pipe jacking machine as the machine excavates. The inward folding of the water-stopping component 200 forms a reliable constraint with the pipe jacking machine, thereby achieving the effect of water-stopping reception by the pipe jacking machine.

[0049] It should be noted that the first state is the state when the casing 300 is working, and the second state is the state when the casing 300 is not working.

[0050] In one embodiment, the water-stopping component 200 includes a water-stopping rubber ring 210, a pad 220, a hinge pressure plate 230, and a fastener 240;

[0051] The water-stop rubber ring 210 is located on one side of the portal steel ring 100;

[0052] The pad 220 is located on the side of the water-stop rubber ring 210 away from the portal steel ring 100;

[0053] The hinge pressure plate 230 is located on the side of the pad 220 away from the water-stop rubber ring 210;

[0054] The fixing component 240 sequentially fixes the water-stop rubber ring 210, the pad 220 and the hinge pressure plate 230 to one side of the portal steel ring 100.

[0055] In this embodiment, after installing the portal steel ring 100, water-stop rubber ring 210, pad 220, hinge pressure plate 230, and fixing component 240, the casing 300 is lowered into the receiving well. The casing 300 is pushed into the portal (i.e., inside the portal steel ring 100) by the installed pushing structure. At this time, the movable end of the hinge pressure plate 230 is pushed open. After the movable end of the hinge plate is pushed open, the water-stop rubber ring 210 is also pushed open. The movable end of the hinge plate and the water-stop rubber ring 210 are turned inward and placed on the casing 300. After the pipe jacking machine excavates to the portal of the receiving well, it pushes the casing 300 into the receiving well. At this time, the movable end of the hinge plate and the water-stop rubber ring 210 placed on the casing 300 are placed on the pipe jacking machine as the pipe jacking machine excavates. The movable end of the hinge plate and the water-stop rubber ring 210 are turned inward and form a reliable constraint with the pipe jacking machine, thereby achieving the effect of water-stopping the pipe jacking machine.

[0056] It should be noted that, as Figure 5As shown, during pipe jacking reception, i.e., when the pipe jacking machine enters the tunnel, it breaks through the tunnel entrance into the receiving shaft within the soil. Because the direction of the breakthrough is opposite to the starting direction, after the pipe jacking machine pushes open the hinge pressure plate 230, it cannot form a constraint with the hinge pressure plate 230. The mud and water around the tunnel will break through the water-stop rubber ring 210, causing water and sand to gush in during reception, which is very likely to cause the end of the receiving shaft to collapse. However, this utility model first pushes the casing 300 into the steel ring 100 of the tunnel entrance, thereby turning the movable end of the hinge plate and the water-stop rubber ring 210 inward toward the tunnel entrance of the receiving shaft. Figures 1-2 As shown, the movable end of the hinge plate and the water-stop rubber ring 210 are turned inward, which can better withstand the pressure of mud and water and prevent water and sand from flowing in during reception.

[0057] In one embodiment, the sleeve 300 is provided with a plurality of clamping plates 400 arranged in a circular array.

[0058] In this embodiment, after the pipe jacking machine excavates to the tunnel entrance, its cutting edge will push the clamping plate 400 on the casing 300, thereby pushing the casing 300 until it is pushed out of the tunnel entrance to the receiving well. The casing 300 is then lifted out of the receiving well. During this process, the pressure plate on the casing 300 will also be pushed onto the pipe jacking machine, forming a reliable constraint to prevent the water-stop rubber ring 210 from flipping out and to ensure the water-stopping effect.

[0059] In one embodiment, a jack socket 500 is provided on one side of the sleeve 300.

[0060] In this embodiment, the jack socket 500 is used to receive the pressure of the jack 700.

[0061] In one embodiment, a guide rail 600 is also included;

[0062] The guide rail 600 is installed in the receiving well, and a jack 700 is provided on the guide rail 600;

[0063] The sleeve 300 is mounted on the guide rail 600.

[0064] In this embodiment, after installing the portal steel ring 100, water-stop rubber ring 210, pad 220, hinge pressure plate 230, and fixing component 240, the casing 300 is lowered into the receiving shaft. The casing 300 is pushed into the portal (inside the portal steel ring 100) by the jack 700. The casing 300 pushes open the hinge pressure plate 230 and the rubber ring so that they rest on the casing 300. After the pipe jacking machine excavates to the portal, it pushes the casing 300 into the receiving shaft. The hinge pressure plate 230 and the water-stop rubber ring 210 rest on the casing 300 as the excavation progresses and rest on the pipe jacking machine. The hinge pressure plate 230 and the pipe jacking machine form a reliable constraint, achieving the purpose of water-stopping the pipe jacking machine. The guide rail 600 limits the movement trajectory of the casing 300.

[0065] It should be noted that after the casing 300 is pushed into the steel ring 100 of the tunnel entrance by the jack 700, the hinge plate 230 is turned inward. The casing 300 is then pushed out by the pipe jacking machine. During the pushing process, the hinge plate 230 is always in the inward state. After turning inward, the hinge plate can withstand greater mud and water pressure, thus better preventing water and sand from flowing in during reception.

[0066] The working principle of this utility model:

[0067] After installing the portal steel ring 100, water-stop rubber ring 210, pad 220, hinge pressure plate 230, and fixing component 240, the casing 300 is lowered into the receiving well. The casing 300 is pushed into the portal (i.e., inside the portal steel ring 100) by the installed pushing structure. At this time, the movable end of the hinge pressure plate 230 is pushed open. After the movable end of the hinge plate is pushed open, the water-stop rubber ring 210 is also pushed open. The movable end of the hinge plate and the water-stop rubber ring 210 are turned inward and placed on the casing 300. After the pipe jacking machine excavates to the portal of the receiving well, it pushes the casing 300 into the receiving well. At this time, the movable end of the hinge plate and the water-stop rubber ring 210 placed on the casing 300 are placed on the pipe jacking machine as the pipe jacking machine excavates. The movable end of the hinge plate and the water-stop rubber ring 210 are turned inward and form a reliable constraint with the pipe jacking machine, thereby achieving the effect of water-stopping the pipe jacking machine.

[0068] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made using the paper parts and drawings of the present utility model under the inventive concept of the present utility model, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A water-stopping structure for a tunnel entrance used for pipe jacking reception, characterized in that, include: A steel ring (100) for fixing the entrance of the receiving well; A water-stopping assembly (200) is installed on the portal steel ring (100); A sleeve (300), the sleeve (300) comprising a first state and a second state; When the casing (300) is in the first state, the casing (300) is located inside the portal steel ring (100), and at this time the water-stopping component (200) is turned inward toward the receiving well opening and abuts against the casing (300); When the casing (300) is in the second state, the casing (300) is located inside the receiving well.

2. The water-stopping structure for a tunnel entrance for pipe jacking as described in claim 1, characterized in that, The water-stopping assembly (200) includes a water-stopping rubber ring (210), a pad (220), a hinge pressure plate (230), and a fastener (240).

3. The water-stopping structure for a tunnel entrance for pipe jacking as described in claim 2, characterized in that, The water-stop rubber ring (210) is located on one side of the portal steel ring (100).

4. The water-stopping structure for tunnel entrance receiving as described in claim 2, characterized in that, The pad (220) is located on the side of the water-stop rubber ring (210) away from the portal steel ring (100).

5. A water-stopping structure for a tunnel entrance for pipe jacking as described in claim 2, characterized in that, The hinge pressure plate (230) is located on the side of the pad (220) away from the water-stop rubber ring (210).

6. A water-stopping structure for a tunnel entrance for pipe jacking as described in claim 2, characterized in that, The fastener (240) sequentially fixes the water-stop rubber ring (210), the pad (220) and the hinge pressure plate (230) to one side of the portal steel ring (100).

7. A water-stopping structure for a tunnel entrance for pipe jacking as described in claim 1, characterized in that, The sleeve (300) is provided with a plurality of clamping plates (400) arranged in a circular array.

8. A water-stopping structure for a tunnel entrance for pipe jacking as described in claim 1, characterized in that, A jack socket (500) is provided on one side of the sleeve (300).

9. A water-stopping structure for a tunnel entrance for pipe jacking as described in claim 1, characterized in that, It also includes a guide rail (600); The guide rail (600) is installed in the receiving well, and a jack (700) is provided on the guide rail (600).

10. A water-stopping structure for a tunnel entrance for pipe jacking as described in claim 9, characterized in that, The sleeve (300) is mounted on the guide rail (600).

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