Confined water stratum shield tunneling machine receiving and sealing device and shield tunneling machine

Abstract

The utility model belongs to the technical field of shield construction, and discloses a confined water stratum shield tunneling machine receiving and sealing device and a shield tunneling machine. The annular flexible part is arranged on the outer side of the shield tunneling machine in a sleeving mode, and the two semi-annular hooping parts abut against the outer side of the annular flexible part; the multiple humidity monitors are distributed on the outer side of the shield tunneling machine at intervals in the circumferential direction and used for monitoring the humidity value of the outer side of the shield tunneling machine. Each humidity monitor is connected to the control mechanism, the control mechanism can drive the driving mechanism to be opened and closed according to numerical values of the humidity monitors, and under driving of the driving mechanism, the two semi-annular hooping pieces can be close to or away from each other so as to tighten or release the annular flexible piece. According to the device, the annular flexible part can be adjusted according to the real-time condition of a surrounding soil layer, the sealing effect is guaranteed, and it is guaranteed that follow-up construction is conducted smoothly; and meanwhile, the arrangement of the semi-annular hooping piece has a protection effect on the annular flexible piece, so that the service life of the device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shield construction, in particular to a receiving sealing device for a shield machine in a pressurized water stratum and a shield machine. Background Art

[0002] Shield construction, as a new type of dark excavation construction method, has been widely used in tunnel construction and underground rail transit. During the construction process, all of them pass through pressurized water strata to a certain extent. Construction under such stratum conditions will face a series of problems such as segment leakage and shield machine floating.

[0003] The sealing device disclosed in the prior art has multiple elastic inner rings arranged on the outer wall of the cutter head of the shield machine, and the elastic inner rings are squeezed or released by the control part arranged on the elastic inner rings to achieve the sealing effect. However, after aging, the elastic inner rings are prone to cracking, and thus the sealing effect cannot be guaranteed. At the same time, the control part cannot make timely adjustments according to the actual situation of the surrounding soil layer. When the pressure of the surrounding soil layer changes, the sealing effect cannot be guaranteed. Utility Model Content

[0004] The utility model aims to provide a receiving sealing device for a shield machine in a pressurized water stratum and a shield machine, which can perform real-time monitoring according to the surrounding soil layers, and perform sealing in time, and have a long service life.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, a receiving sealing device for a shield machine in a pressurized water formation is provided, which is used to seal the gap between the ground wall and the shield machine, comprising:

[0007] A sealing assembly, comprising an annular flexible member and two semi-annular clamping members, wherein the annular flexible member is sleeved on the outside of the shield machine, and the two semi-annular clamping members are both in contact with the outside of the annular flexible member;

[0008] A monitoring component, comprising a plurality of humidity monitors, wherein the plurality of humidity monitors are distributed at intervals along the circumferential direction on the outside of the shield machine and are used to monitor the humidity value on the outside of the shield machine;

[0009] The control component includes a control mechanism and a driving mechanism. Each humidity monitor is connected to the control mechanism. The control mechanism can drive the opening and closing of the driving mechanism according to the value monitored by the humidity monitor. Under the drive of the driving mechanism, the two semi-annular clamping members can move closer to or away from each other to tighten or release the annular flexible member.

[0010] As an optional solution for receiving the sealing device of the shield machine in the pressurized water stratum, the sealing assembly further comprises an oil reservoir, which is fixedly arranged on the outside of the semi-annular clamp and connected to the control mechanism;

[0011] The semi-annular clamp and the annular flexible member are both provided with oil injection channels, which are connected to the oil reservoir. The control mechanism can control the opening and closing of the oil reservoir to inject oil into the gap between the shield machine and the annular flexible member.

[0012] As an optional solution for receiving a sealing device for a shield machine in pressurized water strata, the sealing assembly also includes a plurality of reinforcement members, which are circumferentially spaced and distributed on the outside of the semi-annular clamping member, and each of the reinforcement members is connected between the ground wall and the semi-annular clamping member.

[0013] As an optional solution for receiving the sealing device of the shield machine in pressurized water strata, an axial force meter is fixedly provided on each of the reinforcement members, and the axial force meter is connected to the control mechanism.

[0014] As an optional solution for receiving the sealing device of the shield machine in pressurized water strata, a sealing member is provided between two adjacent reinforcement members.

[0015] As an optional solution for receiving the sealing device of the shield machine in pressurized water strata, two driving mechanisms are provided, and the two driving mechanisms are connected to the two ends of the semi-annular clamping member in a one-to-one correspondence.

[0016] As an optional solution for receiving the sealing device of the shield machine in pressurized water strata, a fixing plate is fixedly provided on the outside of each semi-annular clamp, one of which is fixedly provided with a fixed end of the driving mechanism, and the other fixing plate is connected to the output end of the driving mechanism.

[0017] As an optional solution for receiving the sealing device of the shield machine in pressurized water strata, the annular flexible member is made of rubber material.

[0018] As an optional solution for receiving the sealing device of the shield machine in pressurized water strata, the control component also includes an alarm, which is connected to the humidity monitor.

[0019] On the other hand, a shield machine is provided, comprising the above-mentioned pressurized water stratum shield receiving sealing device.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a receiving sealing device for a shield machine in a pressurized water stratum and a shield machine. The sealing device is used to block the gap between the ground wall and the shield machine. The sealing device includes a sealing component, a monitoring component and a control component. The sealing component includes an annular flexible member and two semi-annular clamping members. The annular flexible member is sleeved on the outside of the shield machine, and the two semi-annular clamping members are both in contact with the outside of the annular flexible member; the monitoring component includes a plurality of humidity monitors, and the plurality of humidity monitors are distributed at intervals along the circumferential direction on the outside of the shield machine to monitor the humidity value on the outside of the shield machine; the control component includes a control mechanism and a driving mechanism, each humidity monitor is connected to the control mechanism, and the control mechanism can drive the opening and closing of the driving mechanism according to the value of the humidity monitor. Under the drive of the driving mechanism, the two semi-annular clamping members can move closer or farther from each other to tighten or release the annular flexible member. The device can adjust the annular flexible member according to the real-time situation of the surrounding soil layer to ensure the sealing effect and ensure the smooth progress of subsequent construction; at the same time, the setting of the semi-annular clamping member has a protective effect on the annular flexible member, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the receiving sealing device of the shield machine in the pressurized water stratum provided by the specific implementation method of the utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the receiving sealing device of the shield machine in the pressurized water stratum provided by the specific implementation method of the utility model. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of the receiving sealing device of the shield machine in the pressurized water stratum provided by the specific implementation method of the utility model. Figure 3 .

[0025] In the figure:

[0026] 100, ground wall; 200, shield machine;

[0027] 1. Sealing assembly; 11. Annular flexible member; 12. Semi-annular clamping member; 121. Fixed plate;

[0028] 13. Oil reservoir; 14. Reinforcement; 141. Axis force gauge; 15. Sealing element;

[0029] 2. Monitoring components;

[0030] 3. Control component; 31. Control mechanism; 32. Driving mechanism. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 or an electrical connection; 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 the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0036] like Figures 1 to 3As shown, this embodiment provides a receiving sealing device for a shield machine in a pressurized water formation. The sealing device is used to block the gap between the ground wall 100 and the shield machine 200. The sealing device includes a sealing component 1, a monitoring component 2 and a control component 3. The sealing component 1 includes an annular flexible member 11 and two semi-annular clamping members 12. The annular flexible member 11 is sleeved on the outside of the shield machine 200, and the two semi-annular clamping members 12 are both in contact with the outside of the annular flexible member 11; the monitoring component 2 includes a plurality of humidity monitors, which are distributed at intervals along the circumferential direction on the outside of the shield machine 200 to monitor the humidity value on the outside of the shield machine 200; the control component 3 includes a control mechanism 31 and a driving mechanism 32, each humidity monitor is connected to the control mechanism 31, and the control mechanism 31 can drive the opening and closing of the driving mechanism 32 according to the value of the humidity monitor. Under the drive of the driving mechanism 32, the two semi-annular clamping members 12 can move closer to or farther from each other to tighten or release the annular flexible member 11. The device can adjust the annular flexible member 11 according to the real-time conditions of the surrounding soil layer to ensure the sealing effect and ensure the smooth progress of subsequent construction; at the same time, the setting of the semi-annular clamping member 12 has a protective effect on the annular flexible member 11, thereby extending the service life of the device.

[0037] Optionally, the annular flexible member 11 is made of a rubber material having good elasticity, wear resistance and aging resistance.

[0038] Specifically, the semi-annular clamp 12 is made of steel, which is easy to obtain and simple to manufacture; the humidity monitor is an existing device in the field, and its specific structure and principle refer to the existing technology, and this embodiment does not make specific limitations on this; the control mechanism 31 is an STM32 controller commonly used in the field; the driving mechanism 32 is a hydraulic driving mechanism, a pneumatic driving mechanism or an electric driving mechanism commonly used in the field, as long as it can drive the two semi-annular clamps 12 to move closer to or away from each other, and no specific limitations are made here.

[0039] Optionally, refer to Figure 1 The sealing assembly 1 also includes an oil reservoir 13, which is fixed on the outer side of the semi-annular clamp 12 and connected to the control mechanism 31. The semi-annular clamp 12 and the annular flexible member 11 are both provided with oil injection channels, which are connected to the oil reservoir 13. The control mechanism 31 can control the opening and closing of the oil reservoir 13 to control whether to inject oil into the gap between the shield machine 200 and the annular flexible member 11. The above arrangement can ensure the smoothness of the shield machine 200 relative to the annular flexible member 11, avoid damage to the annular flexible member 11 due to excessive friction, and improve the service life of the sealing device.

[0040] Optionally, the sealing assembly 1 further includes a plurality of reinforcement members 14, which are circumferentially spaced apart on the outside of the semi-annular clamping member 12, and each reinforcement member 14 is connected between the ground wall 100 and the semi-annular clamping member 12 to further improve the stability of the semi-annular clamping member 12 clamped on the outside of the annular flexible member 11, thereby ensuring the sealing effect.

[0041] Specifically, the reinforcement member 14 is a steel rod, which is easy to obtain and simple to obtain.

[0042] Further, continue to refer to Figure 1 Each reinforcing member 14 is provided with an axial force meter 141, and the axial force meter 141 is connected to the control mechanism 31. With the above arrangement, during the tightening process of the semi-annular clamp 12, the stress condition of the reinforcing member 14 can be monitored in real time to avoid damage to the reinforcing member 14 due to stress concentration.

[0043] Specifically, the axial force meter 141 is an existing device in the art, and its specific structure and principle refer to the existing technology, and this embodiment does not make any specific limitations on this.

[0044] Optionally, a sealing member 15 is provided between two adjacent reinforcement members 14 to further improve the sealing performance between the shield machine 200 and the ground wall 100 .

[0045] Exemplarily, the sealing member 15 is a rubber membrane commonly used in the art, which has strong flexibility, resilience and water-proof properties.

[0046] Optionally, refer to Figure 3 There are two driving mechanisms 32, and the two driving mechanisms 32 are connected to the two ends of the semi-annular clamping member 12 in a one-to-one correspondence to improve the stability of the two semi-annular clamping members 12 when they are approaching or moving away from each other.

[0047] Optionally, a fixing plate 121 is fixedly disposed on the outer side of each semi-annular clamp 12, wherein a fixing end of the driving mechanism 32 is fixedly disposed on one fixing plate 121, and the other fixing plate 121 is connected to the output end of the driving mechanism 32. The above arrangement can further improve the stability of the two semi-annular clamps 12 in the process of approaching or moving away from each other, thereby ensuring the sealing effect.

[0048] Optionally, the control component 3 further includes an alarm, which is connected to the humidity monitor. When the value monitored by any humidity monitor exceeds a set upper limit, the alarm will send out an alarm signal to alert the operator. Specifically, the alarm signal can be a warning sound, as long as it can serve to alert the operator, and is not specifically limited here.

[0049] In addition, this embodiment also provides a shield machine 200, including the above-mentioned receiving sealing device for a shield machine in a pressurized water stratum, which has all the beneficial effects of the above-mentioned receiving sealing device for a shield machine in a pressurized water stratum, and will not be repeated here.

[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A receiving sealing device for a shield machine in a pressurized water stratum, used for sealing a gap between a ground wall (100) and a shield machine (200), characterized in that: include: A sealing assembly (1) comprises an annular flexible member (11) and two semi-annular clamping members (12), wherein the annular flexible member (11) is sleeved on the outside of the shield machine (200), and the two semi-annular clamping members (12) are both in contact with the outside of the annular flexible member (11); A monitoring component (2) comprising a plurality of humidity monitors, the plurality of humidity monitors being distributed at intervals along the circumferential direction on the outside of the shield machine (200) and being used to monitor the humidity value on the outside of the shield machine (200); The control assembly (3) comprises a control mechanism (31) and a driving mechanism (32). Each of the humidity monitors is connected to the control mechanism (31). The control mechanism (31) can drive the driving mechanism (32) to open or close according to the value monitored by the humidity monitor. Under the drive of the driving mechanism (32), the two semi-annular clamping members (12) can move closer to or farther from each other to tighten or release the annular flexible member (11).

2. The receiving sealing device of a shield machine for pressurized water strata according to claim 1, characterized in that: The sealing assembly (1) further comprises an oil reservoir (13), wherein the oil reservoir (13) is fixedly arranged on the outside of the semi-annular clamping member (12) and connected to the control mechanism (31); The semi-annular clamp (12) and the annular flexible member (11) are both provided with oil injection channels, and the oil injection channels are connected to the oil reservoir (13). The control mechanism (31) can control the opening and closing of the oil reservoir (13) to inject oil into the gap between the shield machine (200) and the annular flexible member (11).

3. The receiving sealing device of a shield machine for pressurized water strata according to claim 1, characterized in that: The sealing assembly (1) further comprises a plurality of reinforcing members (14), wherein the plurality of reinforcing members (14) are distributed at intervals along the circumferential direction on the outside of the semi-annular clamping member (12), and each of the reinforcing members (14) is connected between the ground wall (100) and the semi-annular clamping member (12).

4. The receiving sealing device for a shield machine in a pressurized water stratum according to claim 3, characterized in that: An axial force meter (141) is fixedly provided on each of the reinforcement members (14), and the axial force meter (141) is connected to the control mechanism (31).

5. The receiving sealing device for a shield machine in a pressurized water stratum according to claim 3, characterized in that: A sealing member (15) is provided between two adjacent reinforcement members (14).

6. The receiving sealing device of a shield machine in a pressurized water formation according to any one of claims 1 to 5, characterized in that: Two driving mechanisms (32) are provided, and the two driving mechanisms (32) are connected to two ends of the semi-annular clamping member (12) in a one-to-one correspondence.

7. The receiving sealing device of a shield machine in a pressurized water formation according to any one of claims 1 to 5, characterized in that: A fixing plate (121) is fixedly arranged on the outside of each semi-annular clamping member (12), wherein a fixing end of the driving mechanism (32) is fixedly arranged on one of the fixing plates (121), and the other fixing plate (121) is connected to the output end of the driving mechanism (32).

8. The receiving sealing device of a shield machine in a pressurized water formation according to any one of claims 1 to 5, characterized in that: The annular flexible member (11) is made of rubber material.

9. The receiving sealing device of a shield machine in a pressurized water formation according to any one of claims 1 to 5, characterized in that: The control component (3) also includes an alarm, which is connected to the humidity monitor.

10. A shield machine, characterized in that: It comprises a receiving sealing device for a shield machine in a pressurized water stratum as described in any one of claims 1-9.

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