CN111636877A - Manufacturing method of forced centering bracket with pre-buried sliding groove and T-shaped bolt - Google Patents
Manufacturing method of forced centering bracket with pre-buried sliding groove and T-shaped bolt Download PDFInfo
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- CN111636877A CN111636877A CN202010359443.5A CN202010359443A CN111636877A CN 111636877 A CN111636877 A CN 111636877A CN 202010359443 A CN202010359443 A CN 202010359443A CN 111636877 A CN111636877 A CN 111636877A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 284
- 239000010959 steel Substances 0.000 claims abstract description 284
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 9
- 238000005553 drilling Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 230000005641 tunneling Effects 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 6
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- 230000000977 initiatory effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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Abstract
The invention provides a manufacturing method of a forced centering bracket with an existing pre-buried chute and T-shaped bolts, which comprises the steps of firstly manufacturing an arc-shaped steel plate arranged on the pre-buried chute of a duct piece, fixing the arc-shaped steel plate on the existing pre-buried chute on the inner side of the duct piece through the T-shaped bolts, manufacturing a square steel plate for placing a forced centering disc, and then manufacturing angle steels respectively connected with the arc-shaped steel plate and the square steel plate; the arc-shaped steel plate, the square steel plate and the angle steel are welded together to form a bracket, and the bracket is fixed on the existing embedded chute on the inner side of the duct piece through a T-shaped bolt. The problems that the bracket is inconvenient to carry, the operation time for mounting the bracket is long, the bracket is damaged and deformed, the cyclic utilization rate is low, and the duct piece needs to be repaired after the bracket is detached are solved. The invention improves the existing forced centering bracket into a non-drilling installation mode, effectively ensures the tunneling speed of the shield tunnel, and saves manpower, material resources and operation time.
Description
Technical Field
The invention particularly relates to a manufacturing method of a forced centering bracket with an existing embedded sliding groove and T-shaped bolts, and belongs to the technical field of shield measurement.
Background
A double-line tunnel is arranged between a Ha plain station and an Xu rising street station of No. 3 line second-stage engineering of Haerbin subway, the left line is 1500.761m in length, the right line is 1494.611m in length, the line gradient is V-shaped, the minimum flat curve radius is 450, the maximum gradient is 27.261 per thousand, and the thickness of covering soil is 8.5-36 m. The shield of the left and right lines of the tunnel starts from the small mileage end of the Asahi street station and is disassembled and lifted out when reaching the large mileage end of the Haping street station.
As the shield interval line between the Haping road station and the Xurising street station is as long as about 1500m, in order to ensure the accuracy of plane control measurement in the tunnel and ensure the normal through of the tunnel, the plane control in the tunnel is arranged into a cross double-branch conducting wire form. The construction lead control point in the hole is to install forced centering brackets near the maximum span of the duct piece, the forced centering brackets are generally symmetrically arranged on the duct piece with a difference of about 5 rings, and nearly 10 pairs of brackets are required to be arranged on a single line. The Zhongqiangtianhe shield machine in the shield section of the Ha-shui-Lu-Xu street station of the Harbin subway adopts a Japanese calculation workshop system for guiding, namely a shield machine attitude measurement system mainly comprises a prism, a total station and other auxiliary systems. The total station and the rearview prism for directly measuring the attitude of the shield machine are required to be arranged into a hanging basket forced centering bracket according to the actual situation on site, and the hanging basket forced centering bracket is required to be frequently disassembled and assembled to ensure the accurate attitude measurement of the shield machine due to the influence of turning radius or gradient in the tunneling process of the shield machine. Therefore, the number of the forced centering brackets for installing the wire control points is large, and the frequency of detaching and installing the basket forced centering brackets is high.
Disclosure of Invention
Aiming at the problems that the bracket is inconvenient to carry, the operation time for mounting the bracket is long, the bracket is damaged and deformed, the cyclic utilization rate is low, the duct piece needs to be repaired after the bracket is disassembled and the like, the invention provides the manufacturing method of the forced centering bracket with the pre-buried chute and the T-shaped bolt, which is used for transforming the existing forced centering bracket into a non-drilling mounting mode, effectively ensuring the tunneling speed of the shield tunnel and saving the labor, material and operation time.
The invention provides a manufacturing method of a forced centering bracket with an existing embedded sliding groove and a T-shaped bolt convenient to install and disassemble, which specifically comprises the following steps:
(1) manufacturing an arc-shaped steel plate arranged on a duct piece pre-embedded sliding groove, wherein the arc-shaped steel plate is fixed on an existing pre-embedded sliding groove on the inner side of a duct piece through a T-shaped bolt, and a plurality of round holes are formed in the arc-shaped steel plate, correspond to the existing pre-embedded sliding groove in position and are used for the T-shaped bolt to penetrate through;
(2) manufacturing a square steel plate for placing a forced centering disc, wherein the forced centering disc is used for placing a total station;
(3) manufacturing angle steels respectively connected with the arc-shaped steel plate and the square steel plate;
(4) the arc-shaped steel plate, the square steel plate and the angle steel are welded together to form a bracket, the bracket is fixed on an existing embedded chute on the inner side of the duct piece through a T-shaped bolt, and the bracket is vertically installed on the inner side of the duct piece of the shield tunnel.
Preferably, the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt specifically comprises the following steps:
(1) manufacturing a first arc-shaped steel plate arranged on the duct piece pre-buried sliding groove, wherein a plurality of round holes are formed in the first arc-shaped steel plate;
(2) manufacturing a first square steel plate for placing a forced centering disc, wherein the first square steel plate is arranged above the head end of the first arc-shaped steel plate;
(3) manufacturing a first angle steel connected with a first arc-shaped steel plate and a first square steel plate respectively, wherein the first angle steel is vertical to the first square steel plate;
(4) one end of the first square steel plate is welded on the first arc-shaped steel plate from top to bottom at a position of 45mm, the other end of the first square steel plate is vertically welded with the upper end of the angle steel, and the upper end of the first angle steel is vertically welded with the first square steel plate; the lower extreme welds up 29mm department from down on an arc steel sheet, finally forms the bracket, the bracket passes through T type bolt fastening on the inboard existing pre-buried spout of section of jurisdiction.
More preferably, the size of the first square steel plate is 320mm × 130mm × 8mm, and a forced centering disc is arranged in the center of the first square steel plate; the size of the first angle steel is 40mm multiplied by 3mm, the length of the inner side of the first angle steel is 268mm, and the length of the outer side of the first angle steel is 301 mm.
More preferably, the size of the first arc-shaped steel plate from top to bottom is 443mm × 50mm × 4mm between lengths of 0mm to 443mm in the length direction, 50mm × 130mm × 4mm between lengths of 443mm to 493mm in the length direction, and 27mm × 50mm × 4mm between lengths of 493mm to 520mm in the length direction; and round holes with the diameter of 14mm are respectively arranged at positions 20mm, 195mm, 390mm and 500mm away from the bottom end of the first arc-shaped steel plate, and the four round holes are all positioned on the central axis of the first arc-shaped steel plate.
Preferably, the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt specifically comprises the following steps:
(1) manufacturing a first arc-shaped steel plate arranged on the duct piece pre-buried sliding groove, wherein a plurality of round holes are formed in the first arc-shaped steel plate;
(2) manufacturing a second square steel plate for placing a forced centering disc, wherein the second square steel plate is arranged above the head end of the first arc-shaped steel plate;
(3) manufacturing a second angle steel respectively connected with the first arc-shaped steel plate and the second square steel plate;
(4) one end of the second square steel plate is welded with the upper end of the second angle steel; the other end of the arc-shaped steel plate is welded on a 45mm position from top to bottom on the first arc-shaped steel plate; the lower extreme of No. two angle steel welds in 39mm departments from the bottom up on an arc steel sheet, forms the bracket, the bracket passes through T type bolt fastening on the inboard existing pre-buried spout of section of jurisdiction.
More preferably, the size of the second square steel plate is 320mm × 130mm × 8mm, and a forced centering disc is arranged at a central axis of the second square steel plate, which is 120mm away from the second angle steel end; the size of the second angle steel is less than 40mm multiplied by 3mm, the length of the inner side of the second angle steel is 422mm, and the length of the outer side of the second angle steel is 487 mm.
Preferably, the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt specifically comprises the following steps:
(1) manufacturing two second arc-shaped steel plates arranged on the segment pre-buried sliding groove, wherein each arc-shaped steel plate is provided with a round hole;
(2) manufacturing a third square steel plate for placing a forced centering disc, wherein the third square steel plate is positioned below the two second arc-shaped steel plates;
(3) manufacturing two square steel pipes which are respectively connected with a second arc-shaped steel plate and a third square steel plate, wherein the two square steel pipes are perpendicular to the third square steel plate;
(4) the lower ends of the two square steel pipes are correspondingly and vertically welded on a right starting end of a third square steel plate and 300mm away from the right starting end of the third square steel plate, the upper ends of the two square steel pipes are respectively welded with the two corresponding arc-shaped steel plates to finally form a bracket, and the bracket is fixed on an existing embedded sliding groove on the inner side of the duct piece through a T-shaped bolt.
More preferably, the size of the second arc-shaped steel plate is 100mm × 60mm × 4mm, a round hole with a diameter of 14mm is arranged at a position 73mm away from the bottom end of the second arc-shaped steel plate above the second arc-shaped steel plate, a round hole with a diameter of 14mm is arranged at a position 78mm away from the bottom end of the second arc-shaped steel plate below the second arc-shaped steel plate, and the round holes are all located on the central axis of the second arc-shaped steel plate.
More preferably, the size of the third square steel plate is 200mm × 200mm × 10mm between 0mm and 200mm in the length direction from left to right, and the size of the third square steel plate is 400mm × 140mm × 10mm between 200mm and 600mm in length; and a forced centering disc is arranged on the third square steel plate and is 75mm away from the left end of the third square steel plate.
More preferably, the outer edge of the cross section of the square steel pipe is 50mm long, 28mm wide and 3mm thick, wherein the inner side of the square steel pipe far away from the forced centering disc is 193mm long, and the outer side of the square steel pipe is 158mm long; the length of the inner side of the square steel pipe close to the forced centering disc is 372mm, and the length of the outer side of the square steel pipe is 345 mm.
The working principle of the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt is as follows:
the existing forced centering brackets are installed in the following sequence: the design position of the section of jurisdiction of installation bracket is firstly levelled with the horizontal ruler and is placed the square steel sheet of forcing the centering dish, then mark the drilling position on the section of jurisdiction according to the installation hole of reserving on the bracket, drill on the section of jurisdiction with the electric drill, install the inflation screw after the hole on the section of jurisdiction meets the requirements, install the bracket on the inflation screw, detect the horizontal degree of placing the square steel sheet of forcing the centering dish with the horizontal ruler once more, satisfy the horizontally requirement when erecting with guaranteeing the total powerstation, screw up nut fixed bracket at last.
The installation sequence of the forced centering bracket designed by the invention is as follows: the method comprises the steps of firstly leveling a square steel plate for placing a forced centering disc at the design position of a duct piece embedded chute of an installation bracket by using a horizontal ruler, then placing the head of a T-shaped bolt in the embedded chute according to an installation hole reserved in a bracket arc-shaped steel plate, installing the bracket on a screw after ensuring the mechanical engagement performance of the T-shaped bolt and the embedded chute, detecting the horizontal degree of the square steel plate for placing the forced centering disc by using the horizontal ruler again, meeting the horizontal requirement when a total station is erected, and finally screwing a nut to fix the bracket.
This force centering bracket is according to the size and the shape design of section of jurisdiction self, and the existing pre-buried spout of make full use of section of jurisdiction and T type bolt are tailor-made to one's own volume, and the force centering bracket direct mount that will design through T type bolt no longer needs the electric drill to drill the installation on the pre-buried spout of section of jurisdiction, and installation easy operation is convenient, can save a large amount of installation operation time.
Compared with the prior art, the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt has the beneficial effects that:
1. compared with the forced centering bracket with the conventional design, the forced centering bracket has the advantages of small appearance, material saving and convenient carrying.
2. Compared with the forced centering bracket with the conventional design, the forced centering bracket provided by the invention does not need to drill holes on the duct piece and install the bracket after installing the expansion screws, only needs to ensure the mechanical engagement performance of the T-shaped bolts and the embedded sliding grooves and tighten the nut mounting bracket, is simple and convenient, and can save a large amount of mounting operation time.
3. Compared with the forced centering bracket with the conventional design, the forced centering bracket is convenient to disassemble, small in damage and deformation of the bracket and high in recycling rate.
4. Compared with the forced centering bracket with the conventional design, the forced centering bracket provided by the invention does not need to be installed by drilling on the pipe piece, so that the pipe piece after the forced centering bracket is disassembled does not need to repair a drilled hole, and the appearance quality and the service life of the pipe piece are not affected.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a manufacturing method of a forced centering bracket with an embedded sliding groove and a T-shaped bolt according to the present invention;
FIG. 2 is a schematic structural diagram of a first arc-shaped steel plate according to the present invention;
FIG. 3 is a schematic structural view of a first square steel plate according to the present invention;
fig. 4 is a schematic structural view of a second embodiment of the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt according to the present invention;
FIG. 5 is a schematic structural view of a second square steel plate according to the present invention;
fig. 6 is a schematic structural view of a third embodiment of the manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt according to the present invention;
FIG. 7 is a schematic structural view of a third square steel plate according to the present invention;
FIG. 8 is a schematic structural view of a No. two arc-shaped steel plate according to the present invention;
FIG. 9 is a schematic overall structure diagram of three embodiments of the method for manufacturing the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt according to the present invention;
FIG. 10 is a schematic view of the construction of the bolt of the present invention;
FIG. 11 is a schematic structural view of a trough embedment according to the present invention;
in the figure: 1-a first arc-shaped steel plate; 2-a first square steel plate; 3-first angle steel; 4-second square steel plate; 5-second angle steel; 6-second arc steel plate; 7-third square steel plate; 8-square steel pipes; 9-T bolt; 10-a total station; 11-a platform; 12-a belt conveyor; 13-transport vehicle; 14-walkway plates; 15-groove type embedded part.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, wherein the manufacturing method of the bracket comprises three designs, and the manufacturing method of the first design specifically comprises the following steps:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1 to 3. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt comprises the following steps:
(1) manufacturing a first arc-shaped steel plate 1 installed on a duct piece pre-embedded sliding groove, wherein the first arc-shaped steel plate 1 is fixed on an existing pre-embedded sliding groove on the inner side of a duct piece through T-shaped bolts 9, and a plurality of round holes are formed in the first arc-shaped steel plate 1, correspond to the existing pre-embedded sliding groove in position and are used for the T-shaped bolts 9 to penetrate through;
(2) manufacturing a first square steel plate 2 for placing a forced centering disc, wherein the first square steel plate 2 is arranged above the head end of the first arc-shaped steel plate 1;
(3) manufacturing a first angle steel 3 which is respectively connected with a first arc-shaped steel plate and a first square steel plate, wherein the first angle steel 3 is perpendicular to the first square steel plate 2;
(4) one end of a square steel plate 2 is welded in 45mm department from the top down on an arc steel plate 1, and the other end is welded with the upper end vertical welding of an angle steel 3, the lower extreme of an angle steel 3 welds in arc steel plate 1 and from up 29mm department down, finally forms the bracket, the bracket passes through T type bolt 9 to be fixed on the inboard existing pre-buried spout of section of jurisdiction.
The size of the first square steel plate 2 is 320mm multiplied by 130mm multiplied by 8mm, a forced centering disc is arranged at the center of the square steel plate 2, and the total station 10 is installed on the forced centering disc; the size of the first angle steel 3 is less than 40mm multiplied by 3mm, the length of the inner side is 268mm, and the length of the outer side is 301 mm.
From bottom to top, the size of the first arc-shaped steel plate 1 in the length direction between 0mm and 443mm is 443mm multiplied by 50mm multiplied by 4mm, the size of the steel plate in the length direction between 443mm and 493mm is 50mm multiplied by 130mm multiplied by 4mm, and the size of the steel plate in the length direction between 493mm and 520mm is 27mm multiplied by 50mm multiplied by 4 mm; and round holes with the diameter of 14mm are respectively arranged at the positions 20mm, 195mm, 390mm and 500mm away from the bottom end of the first arc-shaped steel plate 1, and the four round holes are all positioned on the central axis of the first arc-shaped steel plate 1.
One end of the first square steel plate 2 and the first arc-shaped steel plate 1 are welded on the arc-shaped steel plate 1 at a position 45mm from the top end to the bottom end; the other end is vertically welded with the angle steel 3.
One end of the first angle steel 3 is vertically welded with the first square steel plate 2; the other end is welded on the first arc-shaped steel plate 1 from the bottom end to the top end at a position of 29mm, and the cross section width of the first arc-shaped steel plate 1 is 52 mm.
The head of the T-shaped bolt 9 is designed to be a cuboid 23mm multiplied by 12mm multiplied by 8mm, a tooth structure with the interval of 3mm and the height of 1.5mm is designed behind the head, a screw rod of the nut is a threaded cylinder, the diameter of the screw rod is designed to be 12mm, a gasket is arranged in the middle of the screw rod, a groove-type embedded part 15 and a design drawing of the T-shaped bolt are shown in figures 10-11, and the upper end of the T-shaped bolt 9 is connected with an embedded sliding groove at the lower end of the groove-type embedded part 15 in a matched mode.
The pre-buried sliding grooves and the T-shaped bolts 9 are existing pipe piece pieces, the existing pre-buried pieces and the T-shaped bolts are used for avoiding drilling holes in the pipe pieces, and the pipe pieces to be correspondingly installed are high in hardness and are C50 pipe pieces, so that the drilling is inconvenient. The invention only needs to ensure the mechanical engagement performance of the T-shaped bolt 9 and the embedded sliding groove to tighten the nut mounting bracket, is simple and convenient, and can save a large amount of mounting operation time.
The second embodiment is as follows: the present embodiment is explained with reference to fig. 4 to 5. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt comprises the following steps:
(1) manufacturing a first arc-shaped steel plate 1 installed on a duct piece pre-embedded sliding groove, wherein the first arc-shaped steel plate 1 is fixed on an existing pre-embedded sliding groove on the inner side of a duct piece through T-shaped bolts 9, and a plurality of round holes are formed in the first arc-shaped steel plate 1, correspond to the existing pre-embedded sliding groove in position and are used for the T-shaped bolts 9 to penetrate through;
(2) manufacturing a second square steel plate 4 for placing a forced centering disc, wherein the second square steel plate 4 is arranged above the head end of the first arc-shaped steel plate 1;
(3) manufacturing a second angle steel 5 which is respectively connected with the first arc-shaped steel plate and the second square steel plate;
(4) one end of the second square steel plate 4 is welded with the upper end of the second angle steel 5; the other end of the arc-shaped steel plate is welded on the first arc-shaped steel plate 1 at a position of 45mm from top to bottom; no. two angle steel 5's lower extreme welds in 39mm departments from the bottom up on arc steel sheet 1, forms the bracket, the bracket passes through T type bolt 9 to be fixed on the inboard existing pre-buried spout of section of jurisdiction.
The size of the second square steel plate 4 is 320mm multiplied by 130mm multiplied by 8mm, and a forced centering disc is arranged at the central axis of the second square steel plate 4 which is 120mm away from the 5 end of the second angle steel; the size of the second angle steel 5 is less than 40mm multiplied by 3mm, the length of the inner side is 422mm, and the length of the outer side is 487 mm.
One end of a second square steel plate 4 is welded with a second angle steel 5; the other end is welded on the arc-shaped steel plate 1 at the position of 45mm from the top end to the bottom end.
No. two angle steel 5 and square steel plate 4 welding end are 46mm for the cross-sectional width on No. two square steel plate 4, and the other end welds in the position of 39mm department from the bottom to the top on arc steel sheet 1, and its cross-sectional width on arc steel sheet 1 is 57 mm.
The third concrete implementation mode: the present embodiment is explained with reference to fig. 6 to 8. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt comprises the following steps:
(1) manufacturing two second arc-shaped steel plates 6 arranged on the segment pre-buried sliding groove, wherein each arc-shaped steel plate 6 is provided with a round hole;
(2) manufacturing a third square steel plate 7 for placing a forced centering disc, wherein the third square steel plate 7 is positioned below the two second arc-shaped steel plates 6;
(3) manufacturing two square steel pipes 8 which are respectively connected with a second arc-shaped steel plate 6 and a third square steel plate 7, wherein the two square steel pipes 8 are perpendicular to the third square steel plate 7;
(4) the lower ends of the two square steel pipes 8 are correspondingly and vertically welded on the starting end on the right side of the third square steel plate 7 and 300mm away from the starting end on the right side of the third square steel plate, the upper ends of the two square steel pipes are respectively welded with the two corresponding arc-shaped steel plates 6, and finally a bracket is formed and fixed on the existing embedded sliding groove on the inner side of the duct piece through the T-shaped bolt 9.
The size of the second arc-shaped steel plate 6 is 100mm multiplied by 60mm multiplied by 4mm, a round hole with the diameter of 14mm is arranged at the position, 73mm away from the bottom end, of the second arc-shaped steel plate 6 positioned above, a round hole with the diameter of 14mm is arranged at the position, 78mm away from the bottom end, of the second arc-shaped steel plate 6 positioned below, and the round holes are all positioned on the central axis of the second arc-shaped steel plate 6.
The size of the steel plate of the third square steel plate 7 in the length direction of 0-200 mm is 200mm multiplied by 10mm, and the size of the steel plate in the length direction of 200 mm-600 mm is 400mm multiplied by 140mm multiplied by 10 mm; and a forced centering disc is arranged on the third square steel plate 7 at a central axis 75mm away from the left end.
The length of the outer edge of the cross section of the square steel pipe 8 is 50mm, the width of the outer edge of the cross section of the square steel pipe is 28mm, and the thickness of the outer edge of the cross section of the square steel pipe is 3mm, wherein the length of the inner side of the square steel pipe far away from the forced centering disc is 193mm, and the length of the outer side of the square; the length of the inner side of the square steel pipe close to the forced centering disc is 372mm, and the length of the outer side of the square steel pipe is 345 mm.
Two second arc-shaped steel plates 6 are respectively welded with 1 corresponding square steel pipe at the position 5mm away from the bottom end of each second arc-shaped steel plate according to the sequence from bottom to top, and the central line of the cross section of each square steel pipe 8 along the length direction is superposed with the central line of the second arc-shaped steel plate 6; the cross-sectional widths of the 2 square steel pipes 8 on the two corresponding second arc-shaped steel plates 6 are 61mm and 56mm respectively from bottom to top.
No. three square steel plate 7 and 2 square steel pipes 8 correspond respectively and weld perpendicularly in No. three square steel plate 7 on the right side initiating terminal and apart from its right side initiating terminal 300mm department position, and the central line of 8 cross sections of square steel pipe along length direction and the coincidence of the central line of No. three square steel plate 7.
As the shield interval line of the Ha-Ping road station-Xu-Sheng street station is longer, the number of the arranged guide line control points is more, the frequency of detaching and installing the hanging basket to forcibly center the bracket is higher, and a large amount of work is not effectively used in the measurement field but used in the preparation of measurement work. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt does not need a drilling machine to drill, can ensure that the work of installing and disassembling the forced centering bracket is finished by 1 person, does not need to repair the segment after the forced centering bracket is disassembled, and can save a large amount of manpower, material resources and time to ensure the tunneling speed of the shield tunnel.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A manufacturing method of a forced centering bracket with an existing embedded sliding groove and a T-shaped bolt is characterized by comprising the following steps:
(1) manufacturing an arc-shaped steel plate arranged on a duct piece pre-embedded sliding groove, wherein the arc-shaped steel plate is fixed on the existing pre-embedded sliding groove on the inner side of the duct piece through a T-shaped bolt (9), and a plurality of round holes are formed in the arc-shaped steel plate, correspond to the existing pre-embedded sliding groove in position and are used for the T-shaped bolt (9) to penetrate through;
(2) manufacturing a square steel plate for placing a forced centering disc, wherein the forced centering disc is used for placing a total station (10);
(3) manufacturing angle steels respectively connected with the arc-shaped steel plate and the square steel plate;
(4) the arc-shaped steel plate, the square steel plate and the angle steel are welded together to form a bracket, and the bracket is fixed on the existing embedded sliding groove on the inner side of the duct piece through a T-shaped bolt (9).
2. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt as claimed in claim 1, is characterized by comprising the following steps:
(1) manufacturing a first arc-shaped steel plate (1) arranged on a duct piece pre-buried sliding groove, wherein a plurality of round holes are formed in the first arc-shaped steel plate (1);
(2) manufacturing a first square steel plate (2) for placing a forced centering disc, wherein the first square steel plate (2) is arranged above the head end of the first arc-shaped steel plate (1);
(3) manufacturing a first angle steel (3) which is respectively connected with a first arc-shaped steel plate (1) and a first square steel plate (2);
(4) the one end of a square steel plate (2) welds in 45mm department from the top down on an arc steel plate (1), the upper end vertical welding of the other end and an angle steel (3), the lower extreme of an angle steel (3) welds in arc steel plate (1) and from up 29mm department down, finally forms the bracket, the bracket passes through T type bolt (9) to be fixed on the inboard existing pre-buried spout of section of jurisdiction.
3. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt is characterized in that the size of the first square steel plate (2) is 320mm x 130mm x 8mm, and the center of the square steel plate (2) is provided with a forced centering disc; the size of the first angle steel (3) is less than 40mm multiplied by 3mm, the length of the inner side is 268mm, and the length of the outer side is 301 mm.
4. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt according to claim 2, characterized in that the size of the first arc-shaped steel plate (1) from bottom to top is 443mm x 50mm x 4mm between 0mm and 443mm in the length direction, 50mm x 130mm x 4mm between 443mm and 493mm in the length direction, and 27mm x 50mm x 4mm between 493mm and 520mm in the length direction; and round holes with the diameter of 14mm are respectively arranged at positions 20mm, 195mm, 390mm and 500mm away from the bottom end of the first arc-shaped steel plate (1), and the four round holes are all positioned on the central axis of the first arc-shaped steel plate (1).
5. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt as claimed in claim 1, is characterized by comprising the following steps:
(1) manufacturing a first arc-shaped steel plate (1) arranged on a duct piece pre-buried sliding groove, wherein a plurality of round holes are formed in the first arc-shaped steel plate (1);
(2) manufacturing a second square steel plate (4) for placing a forced centering disc, wherein the second square steel plate (4) is arranged above the head end of the first arc-shaped steel plate (1);
(3) manufacturing a second angle steel (5) which is respectively connected with the first arc-shaped steel plate (1) and the second square steel plate (4);
(4) one end of the second square steel plate (4) is welded with the upper end of the second angle steel (5); the other end is welded on the 45mm position from top to bottom on the first arc-shaped steel plate (1); the lower extreme of No. two angle steel (5) welds in 39mm departments from the bottom up on arc steel sheet (1), forms the bracket, the bracket passes through T type bolt (9) to be fixed on the inboard existing pre-buried spout of section of jurisdiction.
6. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt is characterized in that the size of the second square steel plate (4) is 320mm multiplied by 130mm multiplied by 8mm, and a forced centering disc is arranged on a central axis of the second square steel plate (4) which is 120mm away from the end of the second angle steel (5); the size of the second angle steel (5) is less than 40mm multiplied by 3mm, the length of the inner side is 422mm, and the length of the outer side is 487 mm.
7. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt as claimed in claim 1, is characterized by comprising the following steps:
(1) manufacturing two second arc-shaped steel plates (6) arranged on the segment pre-buried sliding groove, wherein each arc-shaped steel plate (6) is provided with a round hole;
(2) manufacturing a third square steel plate (7) for placing a forced centering disc, wherein the third square steel plate (7) is positioned below the two second arc-shaped steel plates (6);
(3) manufacturing two square steel pipes (8) which are respectively connected with a second arc-shaped steel plate (6) and a third square steel plate (7);
(4) the lower ends of two square steel pipes (8) are correspondingly and vertically welded on a third square steel plate (7) at the position of a right starting end and 300mm away from the right starting end, the upper ends of the two square steel pipes are respectively welded with two corresponding arc-shaped steel plates (6), and finally a bracket is formed and is fixed on an existing embedded sliding groove on the inner side of a pipe piece through a T-shaped bolt (9).
8. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt according to claim 7, wherein the size of the second arc-shaped steel plate (6) is 100mm x 60mm x 4mm, a round hole with the diameter of 14mm is arranged at a position 73mm away from the bottom end of the second arc-shaped steel plate (6) above, a round hole with the diameter of 14mm is arranged at a position 78mm away from the bottom end of the second arc-shaped steel plate (6) below, and the round holes are all located on the central axis of the second arc-shaped steel plate (6).
9. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt according to claim 7, characterized in that the dimension of the third square steel plate (7) from left to right in the length direction between 0mm and 200mm is 200mm x 10mm, and the dimension of the steel plate between 200mm and 600mm is 400mm x 140mm x 10 mm; and a forced centering disc is arranged on the central axis of the third square steel plate (7) which is 75mm away from the left end.
10. The manufacturing method of the forced centering bracket with the pre-buried sliding groove and the T-shaped bolt is characterized in that the length of the outer edge of the cross section of the square steel pipe (8) is 50mm, the width of the outer edge of the cross section of the square steel pipe is 28mm, and the thickness of the outer edge of the square steel pipe is 3mm, wherein the length of the inner side of the square steel pipe (8) far away from the forced centering disc is 193mm, and the length of the outer side of the square steel pipe is 158 mm; the inner side of the square steel pipe (8) close to the forced centering disc is 372mm long, and the outer side of the square steel pipe is 345mm long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359443.5A CN111636877A (en) | 2020-04-29 | 2020-04-29 | Manufacturing method of forced centering bracket with pre-buried sliding groove and T-shaped bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359443.5A CN111636877A (en) | 2020-04-29 | 2020-04-29 | Manufacturing method of forced centering bracket with pre-buried sliding groove and T-shaped bolt |
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| CN111636877A true CN111636877A (en) | 2020-09-08 |
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|---|---|---|---|
| CN202010359443.5A Pending CN111636877A (en) | 2020-04-29 | 2020-04-29 | Manufacturing method of forced centering bracket with pre-buried sliding groove and T-shaped bolt |
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Application publication date: 20200908 |