Tunnel monitoring and measuring point device

Abstract

The utility model provides a measuring point device for tunnel monitoring measurement, which comprises a drill rod, a drill bit arranged at the end part of the drill rod, a connecting part arranged at one end of the drill rod far away from the drill bit and connected with a drilling machine, and a reflecting plate arranged at one end of the drill rod far away from the drill bit and used for installing a reflecting sheet, and a connecting assembly detachably connected with the drill rod is arranged on the reflecting plate. Compared with a traditional monitoring point embedded part, the installation process of the device is simpler, batched production of the monitoring point embedded part is achieved through prefabrication of the drill rod, on-site non-standard fire operation machining is avoided, meanwhile, a quality inspection mechanism can conveniently inspect whether the monitoring point embedding condition meets the standard requirement or not, and the quality inspection efficiency is improved. The splicing technology and the self-propelled technology are simplified, and the field installation procedure is standardized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel monitoring measurement measuring point device belongs to tunnel measurement technical field. BACKGROUND

[0002] Tunnel monitoring measurement is an indispensable link in the tunnel construction process, which involves monitoring and analyzing the whole process of tunnel construction. It is to master the dynamic information of surrounding rock and supporting structure, and timely feedback these information, so as to provide basis for adjusting design and construction. Through real-time monitoring, potential instability can be found early, thereby improving the safety of construction and preventing accidents such as collapse.

[0003] Non-contact measurement, as an efficient, accurate and safe modern measurement technology, is widely used in tunnel monitoring measurement. According to relevant specifications, non-contact measurement measuring point embedded parts should be embedded in surrounding rock, and the depth should not be less than 0.2m.

[0004] At present, the monitoring point generally adopts steel bar + steel sheet to process into embedded parts on site, and then the reflecting sheet is bonded on the steel sheet to form the monitoring point; then drill a hole at the embedded position, insert the embedded part into the hole, and then fix it by using anchoring agent.

[0005] However, the existing monitoring point embedded part on-site processing and installation process is complex, and needs fire operation, and the embedded part working operation is not standardized. Therefore, in view of this, a tunnel monitoring measurement measuring point device is proposed to solve the above technical problems. UTILITY MODEL CONTENT

[0006] In view of the deficiencies of the prior art, the utility model provides a tunnel monitoring measurement measuring point device to solve the technical problems of complex on-site processing and installation process of the existing monitoring point embedded part, and the need for fire operation and the non-standardized embedded part working operation in the background art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme, a tunnel monitoring measurement measuring point device, comprising:

[0008] Drill rod, the end is provided with a drill bit, the drill rod is provided with a connecting part connected with a drilling machine at one end away from the drill bit;

[0009] Reflective plate, provided at one end away from the drill bit on the drill rod, for installing reflecting sheet; and

[0010] Connecting assembly, provided on the reflective plate and detachably connected with the drill rod.

[0011] In a preferred embodiment, the drill rod is further provided with an identification area at one end away from the drill bit.

[0012] In a preferred embodiment, the drill rod is further provided with two sets of first threads and second threads in opposite directions.

[0013] In a preferred embodiment, the connecting assembly comprises:

[0014] a sleeve provided on the reflecting plate; and

[0015] a screw, a threaded hole is formed in the end of the drill rod, a fixing hole is formed in the sleeve, the screw penetrates through the fixing hole and is screwed in the threaded hole.

[0016] In a preferred embodiment, the threaded hole is formed in at least two sets, the axes of the two sets of threaded holes are perpendicular, and the two sets of threaded holes both penetrate through the drill rod.

[0017] In a preferred embodiment, both ends of the reflecting plate are provided with clamping grooves, the two sets of clamping grooves are oppositely arranged and form a cavity for accommodating the reflecting sheet.

[0018] In a preferred embodiment, the connecting part is provided with a connecting groove matched with the movable end of the drilling machine.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The device is used, the initial state, the drill rod and the reflecting plate are in a separated state, the reflecting plate is provided with a reflecting sheet matched with a measuring instrument, the drill rod is connected with the drilling machine through the connecting part at the end, the drill rod is rotated by the drilling machine, the drill rod is placed in the measuring point installation area by the drill bit during rotation, the drill rod is separated from the drilling machine, the reflecting plate is installed on the end of the drill rod exposed outside the soil layer through the connecting assembly, the position of the drill rod is adjusted to make the reflecting sheet face the measuring instrument, the arrangement of the reflecting sheet is quickly completed, compared with the traditional monitoring point pre-embedded part, the installation process is simpler, the drill rod pre-fabrication realizes batch production of the measuring point pre-embedded part, avoids non-standard hot work operation processing on site, and also facilitates the inspection of whether the monitoring point embedding meets the specification requirements by the quality inspection agency, and the splicing process and the self-advancing technology simplify and standardize the on-site installation process. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the specific embodiments. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0022] Figure 1 A front view of a tunnel monitoring and measuring measuring point device provided by the utility model;

[0023] Figure 2 Figure 1 is a schematic view of the connection between the reflector plate and the sleeve in the tunnel monitoring measurement point device of the present application;

[0024] Figure 3 Figure 2 is a side view of the reflector plate in the tunnel monitoring measurement point device of the present application.

[0025] Reference signs:

[0026] 1, drill rod; 2, drill bit; 3, first thread; 4, second thread; 5, connecting groove; 6, identification area; 7, threaded hole; 8, sleeve; 9, fixing hole; 10, reflector plate; 11, clamping groove. DETAILED DESCRIPTION

[0027] It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application, and the skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0028] EMBODIMENT

[0029] As shown in Figure 1 The present application provides a tunnel monitoring measurement point device, which comprises a drill rod 1, an end of which is provided with a drill bit 2, and the end of the drill rod 1 away from the drill bit 2 is provided with a connecting part connected with a drilling machine, the connecting part is provided with a connecting groove 5 adapted to the movable end of the drilling machine, and two groups of first threads 3 and second threads 4 with opposite rotation directions are further provided on the drill rod 1.

[0030] When the device is used, the drill rod 1 is first connected with the drilling machine through the connecting groove 5, the drilling machine can be a conventional handheld drilling machine, the connecting groove 5 is adapted to the rotating end of the drilling machine to realize the detachable connection between the drilling machine and the drill rod 1. After the installation of the drill rod 1 is completed, the drill rod 1 is rotated by starting the drilling machine, and the rock-soil body, concrete and other materials are broken by the drill bit 2 to place them in the measurement point installation area. The thread rotation direction of the first thread 3 is consistent with the drilling rotation direction, and under the action of the first thread 3 and the second thread 4 with opposite rotation directions, the drill cuttings can be ensured to flow back into the grooves of the first thread 3 and the second thread 4 and be closely combined with the drill rod 1, the overall stability of the pre-drill rod 1 is ensured, the drill rod 1 is prevented from loosening and axial movement in the soil layer, and the stability of subsequent measurement is improved.

[0031] As shown in Figure 1 In the present embodiment, the end of the drill rod 1 away from the drill bit 2 is further provided with an identification area 6. The identification area 6 is used for identifying the size and buried length of the drill rod 1, and the relevant parameters can be pasted on the identification area 6 or engraved on the identification area 6.

[0032] As shown in Figure 2、 3 As shown in the figure, in the embodiment, the drill pipe 1 is provided with a reflection plate 10 at the end far away from the drill bit 2, the reflection plate 10 is used for mounting a reflection sheet, both ends of the reflection plate 10 are provided with clamping grooves 11, and the two groups of clamping grooves 11 are oppositely arranged and form cavities for accommodating the reflection sheet.

[0033] As shown in the figure, Figure 1 、 2 As shown in the figure, in the embodiment, the reflection plate 10 is provided with a connecting assembly detachably connected with the drill pipe 1, the connecting assembly comprises a sleeve 8 arranged on the reflection plate 10 and a screw, the end of the drill pipe 1 is provided with a threaded hole 7, the sleeve 8 is provided with a fixing hole 9, and the screw penetrates through the fixing hole 9 and is screwed in the threaded hole 7.

[0034] When the drill pipe 1 is arranged in the measurement area, the position of the drill pipe 1 can be finely adjusted by the drilling machine, so that the threaded hole 7 can face the measuring instrument, and the axis of the fixing hole 9 on the sleeve 8 is perpendicular to the reflection plate 10, so that the reflection sheet can face the measuring instrument. After the arrangement of the drill pipe 1 is completed, the sleeve 8 is sleeved on the end of the drill pipe 1 exposed outside the soil layer, and the position of the sleeve 8 on the drill pipe 1 is fixed by the screw, so that the arrangement of the reflection sheet can be quickly completed.

[0035] As shown in the figure, Figure 1 、 2 As shown in the figure, in the embodiment, the threaded hole 7 is provided with at least two groups, the axes of the two groups of threaded holes 7 are perpendicular, and the two groups of threaded holes 7 all penetrate through the drill pipe 1, so that the drilling machine only needs to be adjusted by a small amplitude to make the axis of one of the two groups of threaded holes 7 face the measuring instrument, and the installation efficiency is further improved.

[0036] The specific use mode and beneficial effects of the utility model are as follows:

[0037] The device is in initial state when in use, the drill rod 1 and the reflecting plate 10 are in separated state, the reflecting plate 10 is installed with the reflecting sheet matched with the measuring instrument, first, the drill rod 1 is connected with the drilling machine through the connecting part at the end, the drill rod 1 is rotated through the drilling machine, the drill rod 1 is placed in the measuring point installation area through the drill bit 2 in the rotating process, then the drill rod 1 is separated from the drilling machine, finally, the reflecting plate 10 is installed on the end of the drill rod 1 exposed outside the soil layer through the cooperation of the sleeve 8 and the screw, and the position of the drill rod 1 is adjusted to make the reflecting sheet face the measuring instrument, so that the arrangement of the reflecting sheet is quickly completed, compared with the traditional monitoring point pre-embedded part, the installation process of the device is simpler, the prefabricated drill rod 1 realizes the batch production of the measuring point pre-embedded part, avoids the non-standard hot work operation processing on site, and also facilitates the inspection of the quality inspection organization on whether the monitoring point embedding meets the specification requirements, the splicing process and the self-advancing technology simplify and standardize the on-site installation process.

[0038] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious for those skilled in the art. Therefore, these modifications or improvements made without deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. A tunnel monitoring and measurement point device, characterized in that: Includes: A drill rod (1) is provided with a drill bit (2) at its end, and a connection portion for connecting to a drilling rig is provided at one end of the drill rod (1) away from the drill bit (2); a reflective plate (10), arranged on an end of the drill rod (1) away from the drill bit (2), and used for mounting a reflective sheet; and A connecting assembly is arranged on the reflecting plate (10) and is detachably connected to the drill rod (1).

2. The tunnel monitoring and measurement point device according to claim 1, characterized in that: An identification area (6) is also provided on the end of the drill rod (1) away from the drill bit (2).

3. The tunnel monitoring and measurement point device according to claim 1, characterized in that: The drill rod (1) is also provided with two groups of first threads (3) and second threads (4) with opposite rotation directions.

4. The tunnel monitoring and measurement point device according to claim 1, characterized in that: The connecting component includes: a sleeve (8) disposed on the reflecting plate (10); and The end of the drill rod (1) is provided with a threaded hole (7), the sleeve (8) is provided with a fixing hole (9), and the screw passes through the fixing hole (9) and is screwed into the threaded hole (7).

5. The tunnel monitoring and measuring point device according to claim 4, characterized in that: At least two groups of threaded holes (7) are provided, the axes of the two groups of threaded holes (7) are perpendicular to each other, and both groups of threaded holes (7) pass through the drill rod (1).

6. The tunnel monitoring and measurement point device according to claim 1, characterized in that: Both ends of the reflective plate (10) are provided with card slots (11), and two groups of the card slots (11) are arranged opposite to each other and form a cavity for accommodating a reflective sheet.

7. The tunnel monitoring and measurement point device according to claim 1, characterized in that: The connecting portion is provided with a connecting groove (5) adapted to the movable end of the drilling rig.

Images