Auxiliary support for monitoring deslagging state of shield tunnel

Abstract

The utility model discloses an auxiliary support for monitoring the slag tapping state of a shield tunnel, which is characterized in that an accommodating space with an open lower end is limited in a shell, after a detection instrument is arranged in the accommodating space, the shell can protect the detection instrument, the situation that the detection instrument is damaged or even damaged due to collision of hard objects is avoided, and meanwhile, the detection instrument can be prevented from being damaged. And sludge dripping from the top of the tunnel is shielded for the detection instrument, so that the working stability and accuracy of the detection instrument are improved. Meanwhile, the upper end and the lower end of the connecting piece are hinged to the supporting piece and the first base part respectively, and the first pivoting part fixed to the shell is connected with the first base part in a pivoting mode, so that the height and the angle of the detection instrument can be adjusted in a large range, the detection instrument can well adapt to different tunnel environments and monitoring requirements, and universality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction monitoring, in particular to an auxiliary support for monitoring the slag discharging state of a shield tunnel. Background Technique

[0002] The shield method is a fully mechanized construction method in the submining method construction, and is widely used in the development and construction of underground spaces such as subway projects, underground passages, civil air defense projects, underground complexes, and utility tunnels. Taking urban subways as an example, during the shield construction of urban subways, it is generally necessary to monitor the slag discharging state (including but not limited to the moisture content and / or the amount of excavated soil of the muck), so as to adjust the excavation parameters or take corresponding protective measures according to the slag discharging state, thereby reducing special geological disaster phenomena such as overexcavation, under-excavation and even ground settlement caused by improper control of the shield slag discharging, and further improving the stability of the subway tunnel construction and the safety of personnel and equipment.

[0003] There are usually two ways of slag discharging in the shield construction of urban subways. One is the full belt conveyor transportation, and the other is the transportation of muck by battery cars (referred to as muck trucks). The traditional monitoring of the slag discharging state mainly relies on manual labor, which requires a large amount of manpower, material resources and financial resources, and is prone to misjudgment due to the manual monitoring method.

[0004] Of course, the existing technology has also emerged the automatic monitoring technology of the muck state. It mainly collects the spectrum and / or cross-section point cloud data of the transported muck through detection instruments (such as near-infrared spectrometers and / or lidars, etc.), and the analysis system calculates the corresponding moisture content and / or the amount of excavated soil from the collected data, and finally automatically makes a judgment on whether the slag discharging state is abnormal. This method can not only save a large amount of manpower, material resources and financial resources, but also improve the accuracy of monitoring. However, this monitoring method still has deficiencies. For example, the support structure for installing the detection instrument is generally an unadjustable structure or can only swing in a certain plane to adjust the angle, which is difficult to meet different tunnel environments and monitoring requirements, and has poor versatility; 2. After installation, the detection instrument is in a completely exposed state and is easily knocked by hard objects and damaged or even damaged, thus affecting the stability and accuracy of monitoring. Content of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the utility model provides an auxiliary support for monitoring the slag discharging state of a shield tunnel, aiming to improve the stability, accuracy and versatility of the slag discharging state monitoring.

[0006] In order to achieve the above object, the auxiliary support for monitoring the slag discharging state of a shield tunnel provided by the utility model includes:

[0007] A housing, the housing defines an accommodation space with an open lower end, and the accommodation space is used for installing a detection instrument;

[0008] The first pivoting mechanism includes a first base and a first pivoting portion fixed to the top end of the housing. The first pivoting portion is annular or shaft-shaped, pivotally connected to the first base and rotatable about its own axis.

[0009] A connecting member, the upper end of the first base is hinged to the connecting member and can swing relative to the connecting member about the hinge center line of the two; and

[0010] A supporting member for connecting the installation position inside the tunnel. The supporting member is hinged to the upper end of the connecting member, and the connecting member can swing relative to the supporting member to adjust the relative angle between the two.

[0011] The beneficial effects of the present utility model compared with the prior art are as follows: 1. The present utility model defines an accommodation space with an open lower end inside the housing. After the detection instrument is installed in the accommodation space, the housing can protect the detection instrument, avoiding damage or even destruction of the detection instrument caused by being knocked by hard objects. At the same time, it also shields the sludge (or sewage) dripping from the top of the tunnel for the detection instrument, thereby improving the working stability and accuracy of the detection instrument. 2. The present utility model hinges the upper and lower ends of the connecting member to the supporting member and the first base respectively, and pivotally connects the first pivoting portion fixed to the housing to the first base, so that the height and angle of the detection instrument can be adjusted within a large range, which can well adapt to different tunnel environments and monitoring requirements, and has good versatility. Description of the Drawings

[0012] Figure 1 Is a three-dimensional structural schematic diagram of the present utility model from one angle;

[0013] Figure 2 Is a three-dimensional structural schematic diagram of the present utility model from another angle;

[0014] Figure 3 Is Figure 2 An enlarged detailed view of part A of

[0015] Figure 4 Is a structural schematic diagram of the first pivoting mechanism of the present utility model;

[0016] Figure 5 Is a structural schematic diagram of the second pivoting mechanism of the present utility model. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0018] The present utility model provides an auxiliary bracket for monitoring the slag discharging state of a shield tunnel. In an embodiment of the present utility model, as Figures 1-5 shown, the auxiliary bracket for monitoring the slag discharging state of a shield tunnel includes a housing 1, a first pivoting mechanism 10, a connecting member 2, and a supporting member 3.

[0019] Among them, the housing 1 defines an accommodation space 11 with an open lower end. The accommodation space 11 is used to install a detection instrument, and the detection instrument can be a near-infrared spectrometer 100 and / or a lidar 200, etc. The quantity can be determined according to the detection needs. For example, there can be at least one near-infrared spectrometer 100 and / or at least two lidars 200. The housing 1 can protect the detection instrument in the installation space 11, avoiding damage or even destruction of the detection instrument caused by being knocked by hard objects. At the same time, it also shields the sludge (or sewage) dripping from the tunnel top for the detection instrument. After installation, the open lower end of the housing 1 and the detection end of the detection instrument both face the externally transported muck to be detected. The detection instrument can collect the state data of the externally transported muck (such as moisture content and / or excavation volume data) through the open lower end of the housing 1. The first pivoting mechanism 10 includes a first base 101 and a first pivoting part 102 fixed to the top end of the housing 1. The first pivoting part 102 is annular or shaft-shaped, and can be pivotally connected to the first base 101 and rotate around its own axis to adjust the angle of the housing 1 in a first plane perpendicular to its own axis, thereby adjusting the position and angle of the detection instrument. The upper end of the first base 101 is hinged to the connecting member 2 and can swing relative to the connecting member 2 around their hinge center line to adjust the angle of the housing 1 in a second plane perpendicular to the first plane, thereby adjusting the position and angle of the detection instrument in different dimensions. The supporting member 3 is used to connect the installation position inside the tunnel to support the entire auxiliary bracket. The shape and structure of the supporting member 3 can have various implementation manners, such as being flat or L-shaped plate, etc. The supporting member 3 is hinged to the upper end of the connecting member 2, and the connecting member 2 can swing relative to the supporting member 3 to adjust their relative angles, thereby adjusting the position (including height and horizontal position) and angle of the housing 1 and the detection instrument. Furthermore, the height and angle of the detection instrument can be adjusted over a large range, which can well adapt to different tunnel environments and monitoring requirements, and has good versatility.

[0020] It can be understood that the installation position (not shown) is a certain installation part on the installation platform inside the tunnel, or a certain position of the tunnel segment, preferably a certain position of the top segment of the tunnel. The installation method can be clamping, bolt connection, etc. For the specific installation method, the existing technology can be adopted and will not be elaborated here.

[0021] In the embodiment of the present utility model, the connecting member 2 includes multiple sections of rods 21, and the adjacent rods 21 are hinged to each other and can swing relative to each other to adjust the positions and angles of the housing 1 and the detection instrument within a larger range, so as to better adapt to different tunnel environments and monitoring requirements.

[0022] It can be understood that there are various implementation manners for the pivotable connection manner between the first pivot portion 102 and the first base portion 101. For example, existing technologies can be adopted, or the following implementation manners can be adopted, such as Figure 4 As shown, the first pivot portion 102 is annular, defining a first circular stepped hole 103 with a larger lower section and a smaller upper section. A first stopper is provided in the lower section, and a first limiting space 104 for enclosing the first stopper is formed between the lower section and the top surface of the housing 1. The first stopper 105 is used to restrict the axial movement of the first stopper 105, but does not restrict the relative rotation of the first pivot portion 102 around its own axis relative to the first stopper 105. The lower part of the first base portion 101 extends into the upper section and is fixedly connected to the first stopper 105. Specifically, it can be detachably fixedly connected (such as by screw connection) or non-detachably fixedly connected (such as by welding or bonding) so that the first pivot portion 102 can rotate relative to the first base portion 101.

[0023] In the above embodiment, the first base portion 101 is in the shape of a stepped shaft with a larger upper part and a smaller lower part. The lower part extends into the upper section of the first circular stepped hole 103, and a first damping member is provided at the joint between the upper section and the lower part of the first base portion 101 to prevent the first pivot portion 102 from rotating relative to the first base portion 101 non-artificially (such as under the action of gravity or vibration), so as to ensure the stable posture during the monitoring process.

[0024] Specifically, the first damping member is a first elastic limiting ring 106 sleeved on the lower part of the first base 101 and moving synchronously with it. A plurality of first arc grooves 107 are formed circumferentially on the inner wall of the upper section. The plurality of first arc grooves 107 can be arranged continuously or at intervals. At least one part of the first elastic limiting ring 106 has a local arc arching outwards 108, and the local arc arching outwards 108 is adapted to the first arc groove 107. When the first pivoting part 102 is not subjected to a manual rotating force, the local arc arching outwards 108 is snapped into the first arc groove 107, which can prevent the first pivoting part 102 from rotating relative to the first base 101. When a manual rotating force is applied to the first pivoting part 102, the local arc arching outwards 108 elastically deforms inwards under the action of human force and disengages from the first arc groove 107, so that the first pivoting part 102 can rotate relative to the first base 101. When the first pivoting part 102 rotates relative to the first base 101 by a predetermined angle and the rotating force applied to the first pivoting part 102 is withdrawn, the local arc arching outwards 108 elastically resets and is snapped into the first arc groove 107 again, which can prevent the first pivoting part 102 from rotating relative to the first base 101 non-manually during the monitoring work, thus ensuring the stability of the monitoring.

[0025] More specifically, axially extending first clamping blocks 109 are circumferentially spaced on the lower part of the first base 101. A first clamping groove 110 cooperating with the first clamping blocks 109 is provided on the inner circumference of the first elastic limiting ring 106. After the first elastic limiting ring 106 is sleeved on the lower part of the first base 101, the first clamping blocks 109 are snapped into the first clamping groove 110, which can prevent the first elastic limiting ring 106 from rotating relative to the first pivoting part 102.

[0026] In some embodiments, two first tongue parts 111 extend from the upper part of the first base 101. The lower part of the connecting member 2 extends between the two first tongue parts 111 and is hinged to the two first tongue parts 111.

[0027] Furthermore, the upper end of the connecting member 2 can be directly or indirectly hinged to the supporting member 3. When an indirect hinging method is adopted. The present utility model may further include a second pivoting mechanism 20. The second pivoting mechanism 20 includes a second pivoting part 201 hinged to the upper end of the connecting member 2 and a second base 202 fixedly connected to the supporting member 3. The second pivoting part 201 is annular or shaft-shaped and can be pivotally connected to the second base 202 and can rotate around its own axis to adjust the angle of the housing 1 in a plane perpendicular to its own axis, thereby further adjusting the position and angle of the detection instrument. It can be understood that the pivotable connection manner between the second pivoting part 201 and the second base 202 can also have various implementation manners, such as adopting the prior art, or the following implementation manners, such as Figure 5As shown, the second base 202 is annular, defining a second circular stepped hole 203 with a larger upper section and a smaller lower section. A second stopper 204 adapted thereto is provided in the upper section. A second limiting space 205 is formed between the upper section and the support member 3 to enclose the second stopper 204 therein, so as to limit the axial movement of the second stopper 204, but not limit the rotation of the second stopper 204 relative to the second base 202 about its own axis. The upper part of the second pivot portion 201 extends into the lower section and is fixedly connected to the second stopper 204, which may be a detachable fixed connection (such as by screws) or a non-detachable fixed connection (such as welding or bonding), so that the second pivot portion 201 can rotate relative to the second base 202.

[0028] In the above embodiment, the second pivot portion 201 is in the shape of a stepped shaft with a smaller upper part and a larger lower part. The upper part extends into the lower section of the second circular stepped hole 203, and a second damping member is provided at the joint between the lower section and the upper part of the second pivot portion 201 to prevent the second pivot portion 201 from rotating relative to the second base 202 non-artificially (such as under the action of gravity or vibration), so as to ensure the stable posture during the monitoring process.

[0029] Specifically, the second damping member is a second elastic limiting ring 206 sleeved on the upper part of the second pivot portion 201 and moving synchronously therewith. A plurality of second arc-shaped grooves 207 are formed circumferentially on the inner wall of the lower section of the second circular stepped hole 203. The plurality of second arc-shaped grooves 207 can be arranged continuously or at intervals. At least one part of the second elastic limiting ring 206 has a local arc-shaped outer arch 208, and the local arc-shaped outer arch 108 is adapted to the second arc-shaped groove 207. When the second pivot portion 201 is not subjected to an artificial rotational force, the local arc-shaped outer arch 208 is engaged in the second arc-shaped groove 207, which can prevent the second pivot portion 201 from rotating relative to the second base 202. When an artificial rotational force is applied to the second pivot portion 201, the local arc-shaped outer arch 208 elastically deforms inwardly under the action of human force and disengages from the second arc-shaped groove 207, so that the second pivot portion 201 can rotate relative to the second base 202. After the second pivot portion 201 rotates relative to the second base 202 by a predetermined angle and the rotational force applied to the second pivot portion 201 is removed, the local arc-shaped outer arch 108 elastically resets and re-engages in the second arc-shaped groove 207, which can prevent the second pivot portion 201 from rotating non-artificially relative to the second base 202 during the monitoring work, thus ensuring the stability of the monitoring.

[0030] More specifically, second clamping blocks 209 extending axially are circumferentially spaced on the upper part of the second pivot portion 201. Second clamping grooves 209 are provided on the inner circumference of the second elastic limiting ring 206 and are adapted to the second clamping blocks 209. After the second elastic limiting ring 206 is sleeved on the upper part of the second pivot portion 201, the second clamping blocks 209 are engaged in the second clamping grooves 210, which can prevent the second elastic limiting ring 206 from rotating relative to the second pivot portion 201.

[0031] In some embodiments, two second tongues extend from the lower part of the second pivot portion 201. The upper part of the connecting member 2 extends between the two second tongues and is hinged to the two second tongues.

[0032] Furthermore, brackets 4 for mounting the camera 300 are provided on both sides of the housing 1 and / or in the accommodation space 11 to collect images of the construction waste through the camera 300. Specifically, the brackets 4 provided on both sides of the housing 1 are U-shaped, pivotally mounted on the housing 1, and the open ends of the U-shaped brackets 300 face outward for hinging the camera 300.

[0033] Optionally, both the first elastic limiting ring 106 and the second elastic limiting ring 206 can be made of materials such as plastics or rubbers with good elastic deformation performance.

[0034] It should be noted that the near-infrared spectrometer 100 and the lidar 200 are both prior arts and well-known to those skilled in the art, and their specific structures and working principles will not be elaborated here.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary support for monitoring the slag discharge status of a shield tunnel, characterized in that: include: A housing, wherein the housing defines a receiving space with an open lower end, and the receiving space is used to install a detection instrument; The first pivot mechanism comprises a first base and a first pivot portion fixed to the top end of the housing, wherein the first pivot portion is ring-shaped or shaft-shaped, can be pivotally connected to the first base, and can rotate around its own axis; A connecting member, the upper end of the first base portion is hinged to the connecting member and can swing relative to the connecting member around a hinge center line between the two; and The support member is used to connect the installation position inside the tunnel. The support member is hinged to the upper end of the connecting member, and the connecting member can swing relative to the support member to adjust the relative angle between the two.

2. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 1, characterized in that: The connecting member comprises a plurality of rods, and two adjacent rods are hinged and can swing relative to each other.

3. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 1, characterized in that: The first pivot portion is annular and defines a first circular step hole with a larger lower section and a smaller upper section. A first stopper corresponding to the lower section is provided in the lower section. The lower section and the top surface of the shell form a first limiting space that surrounds the first stopper. The lower part of the first base extends into the upper section and is fixedly connected to the first stopper, so that the first pivot portion can rotate relative to the first base.

4. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 3 is characterized in that: The first base is in the shape of a stepped shaft with a larger upper portion and a smaller lower portion, the lower portion of which extends into the upper section of the first circular stepped hole, and a first damping member is provided at the junction of the upper section and the lower portion of the first base.

5. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 4, characterized in that: The first damping member is a first elastic limiting ring which is sleeved on the lower part of the first base and moves synchronously therewith. The inner wall of the upper section is circumferentially formed with a plurality of first arc-shaped grooves. The first elastic limiting ring has at least one local arc-shaped outer arch, which is adapted to the first arc-shaped groove. When a rotational force is artificially applied to the first pivot part, the local arc-shaped outer arch elastically deforms inward and disengages from the first arc-shaped groove.

6. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 5, characterized in that: The lower part of the first base is circumferentially spaced with axially extending first clamping blocks, the inner circumference of the first elastic limiting ring is provided with a first clamping groove matching with the first clamping block, and after the first elastic limiting ring is sleeved on the lower part of the first base, the first clamping block is clamped into the first clamping groove.

7. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 3, characterized in that: Two first tongues extend from the upper portion of the first base portion, and the lower portion of the connecting member extends between the two first tongues and is hinged with the two first tongues.

8. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to any one of claims 1 to 7, characterized in that: It also includes a second pivot mechanism, which includes a second pivot part hinged to the upper end of the connecting member and a second base fixedly connected to the supporting member. The second pivot part is annular or axial, can be pivotally connected to the second base, and can rotate around its own axis.

9. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 8, characterized in that: The second base is annular and defines a second circular step hole with a larger upper section and a smaller lower section. A second stopper suitable for the second circular step hole is provided in the upper section of the second circular step hole. The upper section of the second circular step hole and the supporting member form a second limiting space that surrounds the second stopper. The upper part of the second pivot portion extends into the lower section of the second circular step hole and is fixedly connected to the second stopper.

10. The auxiliary support for monitoring the slag discharge status of a shield tunnel according to claim 9, characterized in that: The second pivoting portion is in the shape of a stepped shaft with a small upper portion and a large lower portion, the upper portion of which extends into the lower section of the second circular stepped hole, and a second damping member is provided at the junction of the lower section and the upper portion of the second pivoting portion.

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