CN214470627U - Measuring device of TBM tunnel construction monitoring point - Google Patents

Abstract

The utility model relates to a measuring device of TBM tunnel construction monitoring point, the device includes that a TBM pipe sheet groove is arranged in the TBM tunnel, a T-shaped bolt is movably arranged on a clamping groove of a channel of the TBM pipe sheet groove, a hexagon nut is arranged on the thread of the T-shaped bolt, a gasket is arranged between the hexagon nut and the bolt head of the T-shaped bolt, the right end of the T-shaped bolt is planar, the right end of the T-shaped bolt is connected with the side surface of a steel plate by welding, reflective stickers are pasted on the front surface and the back surface of the steel plate, a positioning ring and a positioning cross are arranged on the reflective stickers, the centers of the positioning ring and the positioning cross are coincided, a triangular coating sheet is arranged at each end of the positioning cross, a laser total station is arranged outside the TBM pipe sheet groove, the device can directly and truly reflect the deformation of the TBM pipe sheet groove, the construction risk of the TBM tunnel is reduced, the construction cost is saved, and the device can be repeatedly used, the consumption of raw materials is reduced, and the monitoring cost of the TBM tunnel is saved.

Description

Measuring device of TBM tunnel construction monitoring point

Technical Field

The utility model belongs to the technical field of the tunnel construction, concretely relates to measuring device of TBM tunnel construction monitoring point.

Background

At present, in the TBM tunnel construction process, the installation of monitoring point all adopts and will paste the steel sheet that the reflection of light pasted on ground and weld in advance on the gasket of bolt among the prior art, treats that the section of jurisdiction is assembled the back, and the tie bolt is installed with the gasket that contains the steel sheet simultaneously to screw up through the nut, paste the reflection of light on the steel sheet at last and paste the cross intersection that the reflection of light pasted just can be looked at through total powerstation transmission laser and accomplish the monitoring. The monitoring points installed by the method cannot directly reflect the deformation of the pipe piece, and when the pipe piece is not deformed, the position of the gasket of the connecting bolt is slightly changed to drive the position change of the reflective sticker, so that the monitored data cannot truly reflect whether the TBM pipe piece is deformed.

Chinese patent CN204851268U discloses an efficient tunnel vault monitoring point installation device, which mainly comprises a vault point base, a vault point adhesive member highlight flashlight base, a light telescopic rod with scales, a hydraulic telescopic rod, a pressure display dial, a miniature hydraulic jack, a jack rocking handle, a tripod binding band, a detachable knob and a hydraulic telescopic rod support; the method is characterized in that: the light telescopic rod is internally provided with a hydraulic telescopic rod, the top of the light telescopic rod is provided with a highlight flashlight support, the top of the light telescopic rod with scales is provided with a groove, the size of the groove is consistent with that of the base of the vault point, the bottom of the light telescopic rod with scales is provided with a miniature hydraulic jack, the hydraulic telescopic rod is arranged at the top of the miniature hydraulic jack, and the miniature hydraulic jack is provided with a jack rocking handle; monitoring personnel can not only not occupy construction machinery but also do not disturb under the condition of tunnel construction, high-efficient convenient the laying of tunnel vault monitoring point, improve monitoring personnel's cloth point efficiency from this, reduce the cloth point difficulty, ensure tunnel vault monitoring point and tightly follow the tunnel face, guarantee monitoring personnel's safety simultaneously, but fail the monitoring point installation that the TBM section of jurisdiction of direct reflection tunnel construction warp.

SUMMERY OF THE UTILITY MODEL

The utility model provides a measuring device of TBM tunnel construction monitoring points aiming at the defects of the prior art, the measuring device comprises a TBM tunnel, wherein a TBM pipe sheet groove is formed in the TBM tunnel, the upper and lower symmetrical positions and the upper left and right symmetrical positions of the TBM pipe sheet groove are equally divided into T-shaped bolts, bolt heads of the T-shaped bolts are movably arranged on clamping grooves of the TBM pipe sheet groove, hexagonal nuts are arranged on threads of the T-shaped bolts, gaskets are arranged between the hexagonal nuts and the bolt heads of the T-shaped bolts, the right end of the T-shaped bolts is planar, the right end of the T-shaped bolts is connected with the side face of a steel plate through welding, light reflecting pastes are pasted on the front face and the back face of the steel plate, a positioning ring and a positioning cross are arranged on the light reflecting pastes, the centers of the positioning ring and the positioning cross are overlapped, triangular coating sheets are arranged at each end of the positioning cross, and a laser total station is arranged outside the TBM pipe sheet groove.

Furthermore, the bolt head of the T-shaped bolt is of a conical structure with a small inside and a large outside, and the inner diameter and the outer diameter of the bolt head of the T-shaped bolt are respectively 10mm and 18 mm.

Further, Q235 steel is adopted as the steel plate, and the thickness of the steel plate is 4mm, and the side length is 50mm multiplied by 50 mm.

Further, the bolt head of the T-shaped bolt is perpendicular to the side face of the steel plate.

Furthermore, the triangular coating sheet is coated with a coating layer made of one or a mixture of carbon powder, black rubber and black PPS material.

Furthermore, the side length of the reflecting sticker is equal to that of the steel plate.

Further, the output power of the laser total station is not less than 25 mW.

Further, the T-shaped bolt is a finished bolt with the strength grade of 8.8 and M8 multiplied by 30, and the gasket is a flat gasket with the diameter of 12.

Compared with the prior art, the beneficial effects of the utility model are that: measuring device simple structure, small, the field measurement's of being convenient for operation, the measurement degree is controllable, can be direct, true reflection TBM pipe sheet groove's deformation, and then judge whether the TBM tunnel warp, reduce the construction risk in TBM tunnel, practice thrift the cost in TBM tunnel construction, simultaneously, measuring device repeatedly usable reduces the consumption of raw and other materials, practices thrift the monitoring cost in TBM tunnel.

Drawings

Fig. 1 is a schematic structural diagram of the measuring device of the present invention.

Description of reference numerals:

the method comprises the following steps of 1-clamping groove, 2-TBM pipe sheet groove, 3-steel plate, 4-gasket, 5-hexagon nut, 6-T-shaped bolt, 7-reflective sticker, 8-positioning ring, 9-positioning cross, 10-triangular coating sheet and 11-laser total station.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, the utility model provides a measuring device of TBM tunnel construction monitoring point, measuring device includes: the tunnel boring machine is characterized in that a TBM duct piece groove 2 is arranged in a TBM tunnel, the upper end position and the lower end position of the TBM duct piece groove 2 are symmetrical up and down, a T-shaped bolt 6 is arranged at the upper end position of the left and right sides symmetrically, a bolt head of the T-shaped bolt 6 is movably arranged on a clamping groove 1 of a channel of the TBM duct piece groove 2, a hexagon nut 5 is arranged on a thread of the T-shaped bolt 6, a gasket 4 is arranged between the hexagon nut 5 and the bolt head of the T-shaped bolt 6, the right end of the T-shaped bolt 6 is planar, the right end of the T-shaped bolt 6 is connected with the side face of a steel plate 3 through welding, a light reflecting sticker 7 is pasted on the front face and the back face of the steel plate 3, a positioning ring 8 and a positioning cross 9 are arranged on the light reflecting sticker 7, the centers of the positioning ring 8 and the positioning cross 9 are coincident, each end of the positioning cross 9 is provided with a triangular coating piece 10, and a laser total station 11 is arranged outside the TBM duct piece groove 2.

Further, as shown in fig. 1, the bolt head of the T-shaped bolt 6 has a tapered structure with a small inside and a large outside, and the inner diameter and the outer diameter of the bolt head of the T-shaped bolt 6 are 10mm and 18mm, respectively.

Further, as shown in FIG. 1, Q235 steel was used as the steel sheet 3, and the steel sheet 3 had a thickness of 4mm and a side length of 50 mm. times.50 mm.

Further, as shown in fig. 1, the bolt head of the T-shaped bolt 6 is perpendicular to the side surface of the steel plate 3.

Further, as shown in fig. 1, the triangular coating sheet 10 is coated with a coating layer made of one or more of carbon powder, black rubber and black PPS material.

Further, as shown in fig. 1, the dimension of the reflecting sticker 7 is equal to the dimension of the steel plate 3.

Further, as shown in fig. 1, the power output by the laser total station 11 is not less than 25 mW.

Further, the T-shaped bolt 6 adopts a finished bolt with the strength grade of 8.8 and M8 multiplied by 30, and the gasket 4 adopts a flat gasket with the diameter of 12.

Measuring device's theory of operation as follows:

cutting the steel plate 3 according to the thickness of 50mm multiplied by 4 mm; screwing the gasket 4 and the hexagon nut 5 to a nut of the T-shaped bolt 6, and connecting the side surface of the steel plate 3 with the right end of the T-shaped bolt 6 through welding; embedding the bolt head of a T-shaped bolt 6 into a clamping groove 1 of a TBM segment groove 2, screwing a hexagon nut 5, and pressing a gasket 4 on the inner surface of the TBM segment groove 2; and adhering the light reflecting sticker 7 to the steel plate 3, irradiating the cross point of the positioning cross 9 by a laser signal emitted by the laser total station 11, comparing the coordinate of the cross point of the positioning cross 9 measured by the worker with the coordinate of the cross point of the positioning cross 9 measured by the worker, and judging the deformation of the tunnel.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a measuring device of TBM tunnel construction monitoring point which characterized in that includes:

be provided with TBM pipe piece groove (2) in the TBM tunnel, the upper end position of the upper and lower symmetric position of TBM pipe piece groove (2), controlling the symmetry is equallyd divide and is provided with T type bolt (6), the bolt head of T type bolt (6) sets up with moving about on draw-in groove (1) of the channel of TBM pipe piece groove (2), be provided with hexagon nut (5) on the screw thread of T type bolt (6), hexagon nut (5) with be provided with gasket (4) between the bolt head of T type bolt (6), the right-hand member of T type bolt (6) is planar, the right-hand member of T type bolt (6) is connected with the side of steel sheet (3) through the welding, reflection of light subsides (7) are all pasted to front, reverse side of steel sheet (3), be provided with location ring (8) and location cross (9) on reflection of light subsides (7), location ring (8), The centers of the positioning crosses (9) are overlapped, triangular coating pieces (10) are arranged at each end of the positioning crosses (9), and a laser total station (11) is arranged outside the TBM pipe piece groove (2).

2. The measuring device of the TBM tunnel construction monitoring point as claimed in claim 1, wherein the bolt head of the T-shaped bolt (6) is in a conical structure with a small inside and a large outside, and the inner diameter of the bolt head of the T-shaped bolt (6) is 10mm and the outer diameter of the bolt head of the T-shaped bolt is 18 mm.

3. The measuring device of the TBM tunnel construction monitoring point, according to claim 1, is characterized in that the steel plate (3) is made of Q235 steel, and the thickness of the steel plate (3) is 4mm, and the side length of the steel plate is 50mm x 50 mm.

4. The measuring device of the TBM tunnel construction monitoring point as claimed in claim 1, wherein the bolt head of the T-shaped bolt (6) is perpendicular to the side surface of the steel plate (3).

5. The measuring device of the TBM tunnel construction monitoring point as claimed in claim 1, wherein the triangular coating sheet (10) is coated with a coating layer made of one or more of carbon powder, black rubber and black PPS material.

6. The measuring device of the TBM tunnel construction monitoring point as claimed in claim 1, wherein the side length of the reflective sticker (7) is equal to the side length of the steel plate (3).

7. The measurement device of the TBM tunnel construction monitoring point as claimed in claim 1, wherein the power output by the laser total station (11) is not less than 25 mW.

8. The measuring device of the TBM tunnel construction monitoring point as claimed in claim 1, wherein the T-shaped bolt (6) is a finished bolt with the strength grade of 8.8 and M8 x 30, and the gasket (4) is a flat gasket with the diameter of phi 12.

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