Tunnel body rock mass expansion monitoring and measuring device

Abstract

The utility model relates to the technical field of measurement, and particularly discloses a tunnel body rock mass expansion monitoring and measuring device, which comprises a shooting device, a support frame and a lighting device, the supporting frame comprises a main sleeve, three auxiliary sleeves, three transverse rods and three vertical rods. One end of each of the three cross rods is rotationally connected with the main sleeve, and the other end of each of the three cross rods is fixedly connected with one auxiliary sleeve; the vertical rod can be inserted into the main sleeve and the auxiliary sleeve, and locking mechanisms used for limiting movement of the vertical rod are further fixed to the main sleeve and the auxiliary sleeve. The top end of each vertical rod is fixedly provided with a holder which can be detachably connected with the shooting device and the lighting device. The technical scheme of the utility model can adapt to the tunnel construction environment, and improves the imaging quality of the tunnel face surrounding rock photographing record.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a tunnel body rock mass expansion monitoring and measuring device. Background Art

[0002] Tertiary expansive mudstone contains a large amount of hydrophilic minerals such as montmorillonite and illite, which soften and swell easily when exposed to water, and shrink and crack when dehydrated. Expansive rock tunnel deformation is often characterized by rapid speed, great destructiveness, long duration, and difficulty in treatment. During the construction process, the initial support deformation is often large and the stability when exposed to water is poor. After completion, it is easy to cause lining cracks, invert bottom bulges, roadbed uplift and other diseases.

[0003] Therefore, during the construction process, it is necessary to meet the basic monitoring and measurement requirements and carry out targeted monitoring and measurement of the surrounding rock in order to identify the stability of the surrounding rock, grasp the deformation characteristics of the surrounding rock and support structure, and determine the timing of anchoring, support and secondary lining, so as to adjust the support parameters and construction methods in time.

[0004] Monitoring and measurement can be divided into mandatory and optional items. The mandatory items include evaluation of the state of the surrounding rock of the face, observation of deformation and cracking of the support surface, horizontal displacement measurement, arch crown subsidence measurement, arch foot displacement measurement, etc. When evaluating the state of the surrounding rock of the face, it is necessary to set up a tripod at the deformation measurement point, place a digital camera on the tripod to take pictures of the face, fill in the corresponding working face observation form, and the surrounding rock level determination card during the construction stage.

[0005] However, since tunnel construction mostly uses artificial light sources with limited lighting range, coupled with possible obstruction by construction equipment, it is easy for local areas of the face to be insufficiently bright, affecting the imaging quality.

[0006] Therefore, a tunnel body rock expansion monitoring and measuring device is needed which can adapt to the tunnel construction environment and ensure the imaging quality of photographic records. Utility Model Content

[0007] The utility model provides a tunnel body rock mass expansion monitoring and measuring device, which can adapt to the tunnel construction environment and improve the imaging quality of the surrounding rock photographing record of the tunnel face.

[0008] In order to solve the above technical problems, this application provides the following technical solutions:

[0009] A monitoring and measuring device for cave rock expansion, including a photographing device and a support frame, and also a lighting device;

[0010] The support frame includes a main sleeve, three auxiliary sleeves, three horizontal rods and three vertical rods;

[0011] One end of the three cross bars is rotatably connected to the main sleeve respectively, and the other end of the three cross bars is fixedly connected to a secondary sleeve;

[0012] The vertical rod can be inserted into the main sleeve and the auxiliary sleeve, and the main sleeve and the auxiliary sleeve are also fixed with a locking mechanism for limiting the movement of the vertical rod;

[0013] The top of the vertical rod is fixed with a pan head which can be detachably connected with the shooting device and the lighting device.

[0014] The basic scheme principles and beneficial effects are as follows:

[0015] When using this solution, first determine whether the vertical rod for fixing the shooting device is inserted into the secondary sleeve or the main sleeve. For example, the vertical rod for fixing the shooting device is inserted into the main sleeve, and the main sleeve is placed directly above the measuring point; then determine the support positions of the three secondary sleeves according to the environment at the measuring point, and rotate the crossbar so that the secondary sleeves form three support points. Insert the three vertical rods into the corresponding main sleeve and secondary sleeve respectively, and lock the vertical rods through the locking mechanism; finally, install the shooting device and the lighting device on the pan / tilt of the corresponding vertical rod. Adjust the illumination position of the lighting device to fill in the shadow part, and take photos of the palm face through the shooting device.

[0016] In this solution, the main sleeve and the auxiliary sleeve form four support points, which are highly stable. By controlling the extension length of the vertical rod from the bottom of the auxiliary sleeve, it can also adapt to uneven terrain. When fill light is needed, the relative position of the lighting device and the shooting device can be determined through the auxiliary sleeve. Especially when taking multiple shots, the fill light position can be kept consistent, which is convenient for subsequent comparative analysis of the pictures. When fill light is not needed, only the vertical rod for installing the shooting device is inserted into the main sleeve, and it can still maintain stability.

[0017] In summary, this solution can adapt to the tunnel construction environment and ensure the imaging quality of photographic records.

[0018] Furthermore, a limit ring is fixed on the top of the main sleeve, and an external thread is formed on the circumferential surface below the limit ring. The main sleeve also includes a fastening ring, and an internal thread is formed on the inner surface of the fastening ring. The fastening ring is threadedly connected to the main sleeve.

[0019] One ends of the three cross bars are fixedly connected to a limiting sleeve, and the limiting sleeve is sleeved between a limiting ring of the main sleeve and a fastening ring.

[0020] By rotating the fastening ring, the limiting sleeve can be pressed tightly to prevent relative displacement between the limiting sleeves and between the limiting sleeve and the limiting ring, so that the auxiliary sleeve forms three supporting points and remains stable.

[0021] Further, the locking mechanism includes a threaded column and a knob block fixed to the end of the threaded column;

[0022] The main sleeve and the auxiliary sleeve are also provided with threaded holes in radial direction, and the threaded columns are threadedly connected with the threaded holes.

[0023] By rotating the knob block, the threaded column can be pressed against the vertical rod to prevent the vertical rod and the auxiliary sleeve or the main sleeve from relative displacement, thereby achieving fixation of the vertical rod.

[0024] Furthermore, the vertical rod is a telescopic rod.

[0025] It is convenient to adjust the height of the shooting device and the lighting device according to the actual situation.

[0026] Furthermore, the bottom end of the vertical rod is recessed inwards.

[0027] Usually, road spikes are buried at the measuring point, and the bottom end of the vertical pole is recessed inward to accommodate the protruding top surface of the road spike. When the bottom of the vertical pole corresponding to the vertical pole of the camera is aligned with the road spike, the camera is moved to the top of the road spike, that is, the measuring point, to ensure the accuracy of the shooting position.

[0028] Furthermore, the pan / tilt head is an electric pan / tilt head. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view of the first embodiment of the tunnel body rock mass expansion monitoring and measuring device;

[0030] Figure 2 It is a top view of the first embodiment of the tunnel rock expansion monitoring and measuring device. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The symbols in the drawings of the specification include: shooting device 1, lighting device 2, main sleeve 3, auxiliary sleeve 4, cross bar 5, vertical bar 6, limit ring 7, fastening ring 8, limit sleeve 9, knob block 10, and pan head 11.

[0033] Embodiment 1

[0034] like Figure 1 As shown, the tunnel body rock mass expansion monitoring and measuring device of this embodiment includes a shooting device 1, a support frame and a lighting device 2. In this embodiment, the shooting device 1 is a digital camera, and the lighting device 2 is an LED light source.

[0035] The support frame comprises a main sleeve 3 , three auxiliary sleeves 4 , three cross bars 5 and three vertical bars 6 .

[0036] One end of the three cross bars 5 is rotatably connected to the main sleeve 3, and the other end of the three cross bars 5 is fixedly connected to a secondary sleeve 4. Specifically, a limit ring 7 is fixed on the top of the main sleeve 3, and the circumferential surface below the limit ring 7 is also provided with an external thread, and a fastening ring 8 is also provided, and the inner surface of the fastening ring 8 is provided with an internal thread, and the fastening ring 8 is threadedly connected to the main sleeve 3; one end of the three cross bars 5 is fixedly connected to a limit sleeve 9, and the limit sleeve 9 is sleeved between the limit ring 7 and the fastening ring 8 of the main sleeve 3. The limit sleeve 9 can rotate relative to the main sleeve 3 to realize rotation in the horizontal direction.

[0037] The vertical rod 6 can be inserted into the main sleeve 3 and the auxiliary sleeve 4, and the main sleeve 3 and the auxiliary sleeve 4 are also fixed with a locking mechanism for limiting the movement of the vertical rod 6; specifically, the locking mechanism includes a threaded column and a knob block 10 fixed at the end of the threaded column; the main sleeve 3 and the auxiliary sleeve 4 are also radially provided with threaded holes on their outer surfaces, and the threaded column is threadedly connected to the threaded hole. In this embodiment, the threaded hole of the main sleeve 3 is located below the fastening ring 8.

[0038] The top of the vertical rod 6 is fixed with a pan head 11 which can be detachably connected to the shooting device 1 and the lighting device 2. The bottom of the vertical rod 6 is recessed inward. In this embodiment, the vertical rod 6 and the cross rod 5 are both telescopic rods.

[0039] When using this solution, first determine whether the vertical rod 6 for fixing the shooting device 1 is inserted into the secondary sleeve 4 or the main sleeve 3. Figure 2 As shown, for example, the vertical rod 6 for fixing the shooting device 1 is inserted into the secondary sleeve 4, and the secondary sleeve 4 corresponding to the shooting device 1 is placed directly above the measuring point; then the supporting positions of the other two secondary sleeves 4 and the main sleeve 3 are determined according to the environment at the measuring point, and the crossbar 5 is rotated so that the secondary sleeve 4 forms three supporting points. The three vertical rods 6 are respectively inserted into the corresponding secondary sleeves 4, and the secondary sleeves 4 are locked by the fastening ring 8, and the vertical rods 6 are locked by the knob block 10; finally, the shooting device 1 and the lighting device 2 are installed on the pan / tilt 11 corresponding to the vertical rod 6. The irradiation position of the lighting device 2 is adjusted to fill in the shadow part, and the palm face is photographed and recorded by the shooting device 1.

[0040] Embodiment 2

[0041] The difference between this embodiment and the first embodiment is that the pan / tilt in this embodiment adopts an electronic pan / tilt, and also includes a controller electrically connected to the pan / tilt. In this embodiment, the controller adopts a PTZ controller for controlling the pitch and rotation of the electronic pan / tilt.

[0042] The above are only embodiments of the utility model, and the utility model is not limited to the fields involved in this implementation case. The common sense such as the known specific structure and characteristics in the scheme is not described too much here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before the date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A tunnel rock expansion monitoring and measuring device, comprising a photographing device and a support frame, characterized in that: Also includes lighting devices; The support frame includes a main sleeve, three auxiliary sleeves, three horizontal rods and three vertical rods; One end of the three cross bars is rotatably connected to the main sleeve respectively, and the other end of the three cross bars is fixedly connected to a secondary sleeve; The vertical rod can be inserted into the main sleeve and the auxiliary sleeve, and the main sleeve and the auxiliary sleeve are also fixed with a locking mechanism for limiting the movement of the vertical rod; The top of the vertical rod is fixed with a pan head which can be detachably connected with the shooting device and the lighting device.

2. The device for monitoring and measuring cave rock expansion according to claim 1 is characterized in that: The main sleeve has a limit ring fixed on the top, and an external thread is formed on the circumferential surface below the limit ring. The main sleeve also includes a fastening ring, and an internal thread is formed on the inner surface of the fastening ring. The fastening ring is threadedly connected to the main sleeve. One ends of the three cross bars are fixedly connected to a limiting sleeve, and the limiting sleeve is sleeved between a limiting ring of the main sleeve and a fastening ring.

3. The device for monitoring and measuring cave rock expansion according to claim 2 is characterized in that: The locking mechanism comprises a threaded column and a knob block fixed to the end of the threaded column; The main sleeve and the auxiliary sleeve are also provided with threaded holes in radial direction, and the threaded columns are threadedly connected with the threaded holes.

4. The device for monitoring and measuring cave rock expansion according to claim 1 is characterized in that: The vertical rod is a telescopic rod.

5. The device for monitoring and measuring cave rock expansion according to claim 1 is characterized in that: The bottom end of the vertical rod is recessed inwards.

6. The device for monitoring and measuring cave rock expansion according to claim 1, characterized in that: The pan head is an electric pan head.

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