CN218496034U

CN218496034U - Mine tunnel base point displacement measuring device

Info

Publication number: CN218496034U
Application number: CN202223042991.9U
Authority: CN
Inventors: 胡诗佳; 刘洋; 王静依; 聂闻
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-02-17
Anticipated expiration: 2032-11-16

Abstract

The utility model belongs to the field of roadway measuring devices, in particular to a mine roadway base point displacement measuring device, which comprises a base, wherein an adjusting and supporting unit is arranged below the base, a detection shell is hinged above the base, a measuring unit is arranged between the detection shell and the roadway inner wall, and a positioning unit is arranged between the base and the detection shell; the measuring unit comprises laser ranging sensors fixedly connected to the top wall and the two opposite side walls of the detection shell, positioning piles are anchored in the top wall and the opposite side walls of the roadway respectively, two groups of positioning piles located on the opposite side walls of the roadway are arranged at the same height, and three groups of laser ranging sensors are arranged corresponding to the centers of the three groups of positioning piles respectively. This application is through the detection of three side, and the deformation condition of measuring tunnel lateral wall that can be comprehensive accurately acquires rock mass displacement and deformation data to be convenient for control rock mass stability, ensure that the engineering develops smoothly.

Description

Mine tunnel base point displacement measuring device

Technical Field

The utility model belongs to tunnel measuring device field especially relates to a mine tunnel base point displacement measurement device.

Background

The roadway is used as an underground important transportation channel and a working space, and the stability of the roadway directly influences the normal production of a mine and the life safety of workers. In the prior underground engineering, the original stress balance state of a rock body is destroyed by tunneling operation, so that the surrounding rock body is displaced, deformed and destroyed to a certain degree; and the stress of the surrounding rock body is always in the process of dynamic change, and the displacement, deformation and permeability characteristics of the rock body are changed. In the prior art, the device for measuring the spatial deformation of the CN204924230U roadway calculates the spatial deformation amount of the two spatial points through the length, the azimuth angle, the inclination angle and other parameters, so that the result is more optimized. Through the scheme, only the displacement relation between two points in space can be detected, the deformation condition of each side wall of the roadway cannot be effectively judged, and the deformation data of each side wall in the roadway has important reference significance for stabilizing the rock mass and ensuring the smooth development of the engineering. Therefore, a mine roadway base point displacement measuring device capable of comprehensively measuring the deformation condition of the roadway side wall and accurately acquiring rock mass displacement and deformation data is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mine tunnel base point displacement measurement device to solve above-mentioned problem, reach comprehensive, the accurate purpose of measuring of tunnel deformation.

In order to achieve the above purpose, the utility model provides a following scheme: a plurality of groups of mine roadway base point displacement measuring devices are arranged along the extending direction of a roadway, the distance between every two adjacent measuring devices is 40-50 m, each measuring device comprises a base, an adjusting and supporting unit is arranged below the base, a detecting shell is hinged above the base, a measuring unit is arranged between the detecting shell and the inner wall of the roadway, and a positioning unit is arranged between the base and the detecting shell;

the measuring unit comprises laser distance measuring sensors fixedly connected to the top wall and the two opposite side walls of the detection shell, positioning piles are anchored in the top wall and the opposite side walls of the roadway respectively, two groups of positioning piles located on the opposite side walls of the roadway are arranged at the same height, and the three groups of laser distance measuring sensors are arranged corresponding to the centers of the three groups of positioning piles respectively.

Preferably, spud one end inlays to be established in the tunnel lateral wall, the other end of spud stretches out tunnel lateral wall and still with laser rangefinder sensor corresponds the setting, the spud with be provided with xy coordinate axle and a plurality of holding ring on the relative terminal surface of laser rangefinder sensor, it is a plurality of the holding ring respectively with xy coordinate axle sets up with one heart, is located the inboard the holding ring diameter equals to be located the outside the holding ring radius, laser rangefinder sensor sense terminal with the centre of a circle of xy coordinate axle corresponds the setting.

Preferably, the positioning unit includes fixed connection and is in the support of base top surface, it articulates to detect the casing between the support, the through-hole has been seted up to one side of support, the through-hole with it is corresponding to detect the casing, be close to in the through-hole the one end endwise slip that detects the casing is connected with the stopper, the one end of stopper stretches out the through-hole and still with detect casing lateral wall butt setting, keep away from in the through-hole the one end internal thread cover that detects the casing is equipped with adjust knob's screw rod end, is located in the through-hole the screw rod end with the stopper rotates with the axle center and is connected.

Preferably, it includes three supporting legs to adjust the supporting unit, three groups the top of supporting leg is equidistant respectively to articulate on the bottom surface of base, three groups the bottom of supporting leg is placed respectively on the bottom surface in tunnel, be provided with the adjusting part on the supporting leg, the supporting leg passes through the adjusting part is flexible.

Preferably, the adjusting assembly comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg form the supporting leg, a fixing column is fixedly connected to the bottom end of the upper supporting leg, a blind hole is formed in the fixing column coaxially, a threaded sleeve is sleeved on the outer side of the fixing column circumferentially, a stud is fixedly connected to the top end of the lower supporting leg, one end, away from the lower supporting leg, of the stud is fixedly connected with a sliding column coaxially, the sliding column is adapted to the blind hole, and one end, away from the lower supporting leg, of the threaded sleeve is sleeved on the outer side wall of the stud in a threaded manner.

Preferably, a rubber pad is bonded to one end face, close to the detection shell, of the limiting block, and anti-skid grains are arranged on one side face, far away from the limiting block, of the rubber pad.

Preferably, a level gauge is arranged in the detection shell.

The utility model discloses has following technological effect: the main function of the adjusting and supporting unit is to support the detection shell, so that the laser ranging sensor and the positioning piles on the two sides can be arranged at the same height in the initial state; the positioning unit is mainly used for determining the adjusted relative position of the detection shell, so that the determination of the position of a base point in the initial state is facilitated; the visible light of the laser ranging sensor corresponds to the positioning pile, the deformation of the side wall of the roadway can be detected through the displacement of the visible light spot through the displaced positioning pile, and meanwhile, the deformation condition of the bottom surface of the roadway can be measured. On the whole, this application is through the detection of three side, and the deformation condition of measurement tunnel lateral wall that can be comprehensive accurately acquires rock mass displacement and deformation data to be convenient for control rock mass stability, ensure that the engineering is develoied smoothly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the measuring device of the present invention;

FIG. 2 is a schematic view of the positioning unit structure of the present invention;

fig. 3 is a schematic view of a measuring end of the positioning pile of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1;

wherein, 1, roadway; 2. a lower leg; 3. an upper support leg; 4. a base; 5. a support; 6. detecting the shell; 7. positioning a pile; 8. a laser ranging sensor; 9. a positioning ring; 10. xy coordinate axes; 11. adjusting a knob; 12. a through hole; 13. a limiting block; 14. a stud; 15. a threaded sleeve; 16. a traveler; 17. the column is fixed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.

Referring to fig. 1-4, the utility model provides a mine roadway base point displacement measuring device, which is provided with a plurality of groups along the extending direction of a roadway 1, the distance between adjacent measuring devices is 40m-50m, the measuring device comprises a base 4, an adjusting and supporting unit is arranged below the base 4, a detecting shell 6 is hinged above the base 4, a measuring unit is arranged between the detecting shell 6 and the inner wall of the roadway 1, and a positioning unit is arranged between the base 4 and the detecting shell 6;

the measuring unit includes fixed connection and detects the laser range sensor 8 on the roof of casing 6 and the relative both sides wall, and the inherent spud 7 of anchor respectively in the roof of tunnel 1 and the relative lateral wall, and two sets of spuds 7 that lie in on the 1 relative lateral wall in tunnel are equal altitude to be set up, and three laser range sensor 8 of group correspond the setting with the center of three sets of spuds 7 respectively.

The main function of the adjusting and supporting unit is to support the detection shell 6, so that the laser ranging sensor 8 and the positioning piles 7 on the two sides are arranged at the same height in the initial state; the positioning unit is mainly used for determining the adjusted relative position of the detection shell 6, so that the determination of the base point position in the initial state is facilitated; the visible light of the laser ranging sensor 8 corresponds to the positioning pile 7, and through the positioning pile 7 after displacement, the change of the distance can be detected, the deformation of the side wall of the roadway 1 can be analyzed through the displacement of the visible light spot, and meanwhile, the deformation condition of the bottom surface of the roadway 1 can be measured. On the whole, this application is through the detection of three side, and the deformation condition of measuring 1 lateral wall in tunnel that can be comprehensive accurately acquires rock mass displacement and deformation data to be convenient for control the rock mass and stabilize, ensure that the engineering develops smoothly.

Further optimize the scheme, 7 one ends of spud pile are inlayed and are established in 1 lateral wall in tunnel, the other end of spud pile 7 stretches out 1 lateral wall in tunnel and still corresponds the setting with laser rangefinder sensor 8, be provided with xy coordinate axis 10 and a plurality of holding ring 9 on spud pile 7 and the relative terminal surface of laser rangefinder sensor 8, a plurality of holding ring 9 set up with xy coordinate axis 10 is concentric respectively, it equals the holding ring 9 radius that is located the outside to be located inboard holding ring 9 diameter, the centre of a circle of 8 sense terminals of laser rangefinder sensor and xy coordinate axis 10 corresponds the setting.

Under the initial condition, the laser range sensor 8 corresponds the setting with the xy coordinate axis 10 centre of a circle of spud 7, confirms the position of initial basic point, and the primary function of a plurality of holding rings 9 is the deformation condition of the facula of being convenient for on spud 7 through laser range sensor 8 the position change analysis tunnel 1 bottom surface and the spatial displacement condition of tunnel 1 lateral wall to acquire accurate measured data.

Further optimize the scheme, the positioning unit includes support 5 of fixed connection at 4 top surfaces of base, it articulates between support 5 to detect casing 6, through-hole 12 has been seted up to one side of support 5, through-hole 12 is corresponding with detecting casing 6, the one end endwise slip who is close to detecting casing 6 in the through-hole 12 is connected with stopper 13, the one end of stopper 13 stretches out through-hole 12 and still sets up with detecting 6 lateral wall butts of casing, the one end endotheca that keeps away from detecting casing 6 in through-hole 12 is equipped with the screw rod end of adjust knob 11, the screw rod end that is located through-hole 12 rotates with the axle center with stopper 13 and is connected.

In the initial state, the detection shell 6 is manually adjusted to enable all the laser ranging sensors 8 to correspond to the circle centers of the positioning piles 7, then the adjusting knob 11 is manually rotated to enable the limiting block 13 to abut against the side wall of the detection shell 6, and therefore the initial measurement state is fixed.

Further optimize the scheme, adjust the supporting unit and include three supporting legs of group, the top of three supporting legs of group is equidistant respectively to articulate on the bottom surface of base 4, and the bottom of three supporting legs of group is placed respectively on the bottom surface of tunnel 1, is provided with the adjusting part on the supporting leg, and the supporting leg is flexible through the adjusting part.

According to the bottom surface condition of the roadway 1, stability and stationarity of a measuring state are guaranteed through the adjusting assemblies on the three groups of supporting legs.

Further optimize the scheme, the adjusting part includes landing leg 3 and lower landing leg 2, go up landing leg 3 and lower landing leg 2 formation supporting leg, the bottom fixedly connected with fixed column 17 of going up landing leg 3, the blind hole has been seted up with the axle center in the fixed column 17, the outside circumference cover of fixed column 17 is equipped with threaded sleeve 15, the top fixedly connected with double-screw bolt 14 of lower landing leg 2, the one end that lower landing leg 2 was kept away from to double-screw bolt 14 is with axle center fixedly connected with traveller 16, traveller 16 adaptation is in the blind hole, threaded sleeve 15 keeps away from a one end screw thread cover of lower landing leg 2 and establishes on the lateral wall of double-screw bolt 14.

The threaded sleeve 15 is manually rotated to be in threaded fit with the stud 14, so that the distance between the upper support leg 3 and the lower support leg 2 is controlled, the purpose of adjusting the whole length of the support legs is achieved, and the initial measurement state is adaptive to the terrain of the roadway 1.

According to the further optimized scheme, a rubber pad is bonded on one end face, close to the detection shell 6, of the limiting block 13, and anti-skidding lines are arranged on one side face, far away from the limiting block 13, of the rubber pad.

Through the rubber pad, both can effectively confirm the measuring position who detects casing 6, avoid again to detect casing 6 and produce too big pressure, cause measuring error.

In a further preferred embodiment, a level (not shown) is provided in the test housing 6.

Through the spirit level, can judge the levelness under the initial measuring state to and the levelness when collecting displacement data (be the tunnel 1 after warping), be favorable to accurately judging the deformation condition.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a mine tunnel basic point displacement measurement device, is provided with a plurality of groups along tunnel (1) extending direction, and adjacent distance between the measuring device is 40m-50m, its characterized in that: the measuring device comprises a base (4), an adjusting and supporting unit is arranged below the base (4), a detection shell (6) is hinged above the base (4), a measuring unit is arranged between the detection shell (6) and the inner wall of the roadway (1), and a positioning unit is arranged between the base (4) and the detection shell (6);

the measuring unit comprises laser ranging sensors (8) fixedly connected to the top wall and the two opposite side walls of the detection shell (6), positioning piles (7) are anchored in the top wall and the opposite side walls of the roadway (1) respectively, the two groups of positioning piles (7) located on the opposite side walls of the roadway (1) are arranged at the same height, and the three groups of laser ranging sensors (8) are arranged corresponding to the centers of the three groups of positioning piles (7) respectively.

2. The mine roadway base point displacement measurement device of claim 1, wherein: spud (7) one end inlays to be established in tunnel (1) lateral wall, the other end of spud (7) stretches out tunnel (1) lateral wall and still with laser rangefinder sensor (8) correspond the setting, spud (7) with be provided with xy coordinate axis (10) and a plurality of holding ring (9) on the terminal surface that laser rangefinder sensor (8) is relative, it is a plurality of holding ring (9) respectively with xy coordinate axis (10) set up with one heart, be located the inboard holding ring (9) diameter equals to be located the outside holding ring (9) radius, laser rangefinder sensor (8) sense terminal with the centre of a circle of xy coordinate axis (10) corresponds the setting.

3. The mine roadway base point displacement measurement device of claim 1, wherein: the positioning unit includes fixed connection and is in support (5) of base (4) top surface, it articulates to detect casing (6) between support (5), through-hole (12) have been seted up to one side of support (5), through-hole (12) with it is corresponding to detect casing (6), be close to in through-hole (12) the one end endwise slip that detects casing (6) is connected with stopper (13), the one end of stopper (13) is stretched out through-hole (12) and still with detect casing (6) lateral wall butt setting, keep away from in through-hole (12) the one end internal thread cover that detects casing (6) is equipped with the screw rod end of adjust knob (11), is located in through-hole (12) the screw rod end with stopper (13) rotate with the axle center and connect.

4. The mine roadway base point displacement measurement device of claim 1, wherein: the adjusting and supporting unit comprises three groups of supporting legs, the top ends of the supporting legs are hinged to the bottom surface of the base (4) at equal intervals, the bottom ends of the supporting legs are placed on the bottom surface of the roadway (1) respectively, adjusting assemblies are arranged on the supporting legs, and the supporting legs stretch out and draw back through the adjusting assemblies.

5. The mine roadway base point displacement measurement device of claim 4, wherein: the adjusting assembly comprises an upper supporting leg (3) and a lower supporting leg (2), the upper supporting leg (3) and the lower supporting leg (2) form the supporting legs, a fixing column (17) is fixedly connected to the bottom end of the upper supporting leg (3), a blind hole is formed in the fixing column (17) coaxially, a threaded sleeve (15) is sleeved on the outer side of the fixing column (17) in the circumferential direction, a stud (14) is fixedly connected to the top end of the lower supporting leg (2), a sliding column (16) is fixedly connected to one end, far away from the lower supporting leg (2), of the stud (14) coaxially, the sliding column (16) is matched in the blind hole, and one end, far away from the lower supporting leg (2), of the threaded sleeve (15) is sleeved on the outer side wall of the stud (14) in a threaded mode.

6. The mine roadway base point displacement measurement device of claim 3, wherein: a rubber pad is bonded on one end face, close to the detection shell (6), of the limiting block (13), and anti-skidding lines are arranged on one side face, far away from the limiting block (13), of the rubber pad.

7. The mine roadway base point displacement measurement device of claim 1, wherein: a level gauge is arranged in the detection shell (6).