CN113482658A

CN113482658A - T-beam bench construction platform and method in tunnel

Info

Publication number: CN113482658A
Application number: CN202110884977.4A
Authority: CN
Inventors: 郭小坤; 杨同军; 秦文涛; 洪碧武; 郭军峰; 郝璐; 钱玉春; 肖县桃; 黄红飞; 肖红顺; 刘华彬; 马杨铭; 杨光; 邵晖; 李春品
Original assignee: Southwest Communication Construction Group Co ltd
Current assignee: Southwest Communication Construction Group Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-10-08
Anticipated expiration: 2041-08-03
Also published as: CN113482658B

Abstract

The invention provides a T-beam bench base construction platform and method in a tunnel, and relates to the field of civil engineering. The T-beam platform base construction platform in the tunnel comprises a platform surface frame, supporting legs and a platform surface plate. The table top frame is basically in a rectangular structure and comprises two longitudinal rods and two transverse rods which are detachably connected, and a hollow part is formed by enclosing; the number of the supporting legs is at least four, the supporting legs are arranged at four corners of the table top frame, one ends of the supporting legs are fixedly connected with the table top frame, the other ends of the supporting legs are arranged on the ground, and the supporting legs comprise a first section and a second section which are in telescopic connection; the table panel is arranged in the hollow part and is detachably connected with the table top frame. The construction method of the T-beam platform in the tunnel is based on the construction platform of the T-beam platform in the tunnel. The T-beam platform base construction platform in the tunnel is beneficial to reducing the cost of the T beam for the tunnel.

Description

T-beam bench construction platform and method in tunnel

Technical Field

The invention relates to the field of civil engineering, in particular to a T-beam bench construction platform and a method in a tunnel.

Background

The T-beam is a beam body widely used in traffic engineering such as tunnels, bridges and the like. In the related art, the T-beam is generally prefabricated in a prefabricated yard, which is generally flat. And after prefabrication is completed, transporting to the site for installation. Prefabricated yards are often equipped with pedestals for T-beam casting, formwork installation. Since the volume of the T-beam is usually large, the prefabrication site is usually close to the construction site to save transportation cost. For tunnel engineering, tunnels are often found in mountainous areas, it is difficult to find a proper prefabricated yard near the tunnels or the cost for building the prefabricated yard is too high, and if the site of the prefabricated yard is too far for finding flat ground, the transportation cost is greatly increased. Therefore, the total cost of manufacturing and transporting the T-beam for the tunnel tends to be high. How to reduce the cost of the T beam for the tunnel is a problem to be solved urgently.

Disclosure of Invention

The invention provides a platform and a method for constructing a T-beam platform base in a tunnel, and aims to solve the problem that the cost of a T-beam for the tunnel is high in the related technology.

The invention is realized by the following steps:

in a first aspect, the present invention provides a platform for constructing a T-beam platform in a tunnel, comprising: the table top frame is basically in a rectangular structure and comprises two longitudinal rods and two transverse rods which are detachably connected, a hollow part is formed by enclosing, a groove is formed in the surface of each longitudinal rod adjacent to the hollow part, the length direction of the groove extends in the same direction as the length direction of the longitudinal rods, two ends of the groove penetrate through the end faces of two ends of each longitudinal rod in the length extending direction, and two opposite edges of the table top plate are arranged in the grooves; the number of the supporting legs is at least four, the supporting legs are arranged at four corners of the table-board frame, one ends of the supporting legs are fixedly connected with the table-board frame, the other ends of the supporting legs are arranged on the ground, and the supporting legs comprise a first section and a second section which are in telescopic connection; the table top plate is arranged in the hollow part and is detachably connected with the table top frame, and the table top plate comprises a first plate body, a second plate body and a supporting column, wherein two opposite edges of the first plate body are arranged in the groove; the second plate body is spaced from the first plate body, is basically parallel to the first plate body, and is longer than the first plate body along the length extension direction of the transverse rod, the length of the second plate body is basically equal to that of the first plate body along the length extension direction of the longitudinal rod, and the surface of the second plate body, close to the first plate body, is in contact with the table top frame; one end of the supporting column is fixedly connected with the first plate body, and the other end of the supporting column is fixedly connected with the second plate body.

Optionally, the support leg further comprises a sleeve, one end of the first section is fixedly connected with the longitudinal rod of the table top frame, and the other end of the first section is located in the sleeve and is in threaded connection with one end of the sleeve; one end of the second section is positioned in the sleeve and is in threaded connection with one end of the sleeve far away from the first section, and the other end of the second section is used for being arranged on the ground; the thread on the first section has an opposite hand to the thread on the second section.

Optionally, an operating panel is further disposed outside the sleeve, and the operating panel is fixedly connected with the sleeve.

Optionally, the number of the deck plates is multiple, and the multiple deck plates are arranged along the length extension direction of the longitudinal rod.

Optionally, be equipped with a plurality of first connecting holes on the vertical pole, a plurality of first connecting holes are arranged along the length extending direction of vertical pole, and the tip of horizontal pole is equipped with the second connecting hole, and the mesa frame still includes the connecting piece, and the connecting piece can be dismantled with first connecting hole and second connecting hole and be connected.

Optionally, the apparatus further comprises a calibration assembly, including: the rod body is of a cylindrical structure, one end of the rod body is connected with the table top frame, and the length direction of the rod body basically extends along the horizontal direction; the rotating structure comprises a bearing, a plumb part and a laser emitting part, wherein the inner ring of the bearing is fixedly sleeved on the rod body; the laser emitting pieces are connected to two ends of the bearing in the first radial direction respectively and used for emitting laser along the first radial direction of the bearing; one end of the plumb part is fixedly connected with the outer ring of the bearing, the other end of the plumb part is a free end, and the length direction of the plumb part extends along the second radial direction of the bearing; the first radial direction is perpendicular to the second radial direction.

Optionally, the longitudinal rod and the transverse rod are both connected with a calibration assembly, the calibration assembly connected with the longitudinal rod is used for calibrating the levelness of the longitudinal rod, and the calibration assembly connected with the transverse rod is used for calibrating the levelness of the transverse rod; wherein, the one end of the body of rod of calibration subassembly is connected with the first connecting hole of vertical pole.

In a second aspect, the invention further provides a method for constructing the T-beam in the tunnel, which comprises the following steps:

transporting the longitudinal rods, the transverse rods, the deck plate and the support legs into a tunnel;

connecting the longitudinal rods, the transverse rods and the deck plate, and adjusting the supporting legs to form a T-beam bench seat construction platform in the tunnel;

erecting a T-beam pouring template and pouring a T-beam by taking the upper surface of the deck plate as a reference;

and after the pouring is finished, removing the pouring template, and moving the T beam to a construction site.

Optionally, the two longitudinal bars are respectively a first longitudinal bar and a second longitudinal bar; the two cross rods are respectively a first cross rod and a second cross rod; the step is connected vertical pole, horizontal pole and deck plate, adjusts the landing leg, and T roof beam platform base construction platform includes in the formation tunnel: the lower ends of the supporting legs are arranged on the ground in the tunnel, and each longitudinal rod is connected with two supporting legs; adjusting the length of the supporting legs at the two ends of the first longitudinal rod to ensure that the length extension direction of the first longitudinal rod is basically along the horizontal direction; the second longitudinal rod and the first longitudinal rod are arranged at an interval, the first longitudinal rod and the second longitudinal rod are connected through the first cross rod, the length of a supporting leg on the second longitudinal rod, which is close to one end of the first cross rod, is adjusted, and the length extension direction of the first cross rod is basically along the horizontal direction; adjusting the length of the supporting leg at the other end of the second longitudinal rod to enable the length extension direction of the second longitudinal rod to be basically along the horizontal direction; mounting a deck plate in a deck frame; one end of the second transverse rod is connected with one end, far away from the first transverse rod, of the first longitudinal rod, the other end of the second transverse rod is connected with one end, far away from the first transverse rod, of the second longitudinal rod, and whether the extending direction of the second transverse rod is basically along the horizontal direction is checked.

Optionally, the step of mounting the table top plate on the table top frame comprises: the edges of the two sides of the first plate body of one deck plate are clamped into the grooves from the end parts of the two longitudinal rods, the second plate body is positioned on the upper part of the first plate body, the deck plate is pushed along the length extending direction of the grooves, the deck plate is abutted against the first transverse rod, and then the rest of deck plates are pushed in sequence.

The invention has the beneficial effects that: the T-beam platform base construction platform in the tunnel obtained through the design comprises a platform surface frame, supporting legs and a platform panel, wherein the platform surface frame is basically in a rectangular structure and comprises two longitudinal rods and two transverse rods which are detachably connected, and the platform surface frame is enclosed to form a hollow part. The quantity of landing leg is at least four, four landing legs set up respectively in mesa frame's four corners, the one end of landing leg with mesa frame fixed connection, the other end are used for setting up in ground, and the landing leg includes first festival section and the second festival section of scalable connection. The table top plate is arranged in the hollow part and is detachably connected with the table top frame. When the T-beam platform base construction platform in the tunnel is transported, the platform surface frame and the platform surface plate can be detached, so that the transportation is facilitated. After transporting the part of this T roof beam platform construction platform in tunnel in the tunnel, can assemble in the tunnel to realize the regulation to mesa frame's levelness through the distance between the first festival section of regulation landing leg and the second festival section, make the deck plate when installing on mesa frame, the upper surface of deck plate is basically located the horizontal plane, thereby construct a horizontal plane that is applicable to the T roof beam shaping through T roof beam platform construction platform in this tunnel, then use the upper surface of deck plate as the installation that the mould was pour to the T roof beam, then pour and form the T roof beam. Because the table-board frame and the table-board of the T-beam pedestal in the tunnel are detachable, the transportation is convenient, and the transportation cost is low. And because the horizontal plane can be constructed by adjusting the supporting legs, the T-beam pouring template can be installed without specially constructing a prefabricated field. The T-beam platform base in the tunnel can be conveyed into the tunnel to be installed and used for pouring and forming of the T beam, and the transportation cost of the T beam is greatly reduced due to the fact that the T-beam platform base is close to a construction site where the T beam needs to be used. The table top plate comprises a first plate body, a second plate ladder and a support column, and a two-layer plate body structure is beneficial to increasing the thickness of the table top plate and improving the bearing capacity of the table top plate; the machined T-shaped beam can have the lower surface as large as possible, namely the machined T-shaped beam can be used for machining the T-shaped beam structure as large as possible; can also simplify the connection operation between deck plate and the mesa frame through the spacing of recess to first plate body, during the use, only need with first plate body push in the recess can. Therefore, the T-beam platform base construction platform in the tunnel provided by the invention is beneficial to reducing the total cost of T-beam forming.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a T-beam platform construction platform in a tunnel provided by an embodiment of the present invention when a deck plate is not installed in a hollow portion;

FIG. 2 is a schematic structural diagram of a T-beam platform construction platform in a tunnel according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a cross bar of a T-beam bench construction platform in a tunnel, which is provided by the embodiment of the invention, connected to the middle of a vertical bar;

FIG. 4 is a cross-sectional view of a T-beam platform construction platform in a tunnel according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a calibration assembly of a T-beam bench construction platform in a tunnel according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a calibration assembly of a T-beam bench construction platform in a tunnel at another viewing angle according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a method for constructing a T-beam platform in a tunnel in step S202 according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of the method for constructing a T-beam platform in a tunnel in step S203 according to the embodiment of the present invention;

fig. 9 is a schematic structural diagram of the method for constructing a T-beam platform in a tunnel in step S205 according to the embodiment of the present invention.

Icon: 1-a table top frame; 11-a longitudinal bar; 111-a first connection aperture; 112-a groove; 12-a cross-bar; 13-a hollow portion; 14-a connector; 2-a support leg; 21-a first segment; 22-a second segment; 23-an operating panel; 24-a sleeve; 3-a deck plate; 31-a first plate body; 32-a second plate body; 33-a support column; 4-calibrating the assembly; 41-rod body; 42-a bearing; 43-a laser emitting member; 44-plumb bob rod; 45-weight; l1-first radial direction; l2-second radial direction;

11 a-a first longitudinal bar; 11 b-a second longitudinal bar; 12 a-first cross bar.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

Please refer to fig. 1-8.

The embodiment of the invention provides a T-beam bench seat construction platform in a tunnel, which comprises a bench framework 1, supporting legs 2 and a bench panel 3, and please refer to fig. 1 and 2. The table top frame 1 is basically in a rectangular structure, the table top frame 1 comprises two longitudinal rods 11 and two transverse rods 12 which are detachably connected, and the two longitudinal rods 11 and the two transverse rods 12 are enclosed to form a hollow part 13. By enclosing, the two longitudinal bars 11 and the two transverse bars 12 are connected to form a closed substantially rectangular frame structure, and the two longitudinal bars 11 and the two transverse bars 12 are located at the edge of the hollow portion 13. Specifically, the two vertical bars 11 are disposed at an interval and the longitudinal extending directions thereof are substantially parallel to each other, and the two horizontal bars 12 are disposed at an interval and the longitudinal extending directions thereof are substantially parallel to each other. One end of the transverse rod 12 is detachably connected with one of the longitudinal rods 11, and the other end of the transverse rod is detachably connected with the other longitudinal rod 11. The number of the supporting legs 2 is at least four, specifically, the number of the supporting legs 2 can be four, and the four supporting legs 2 are respectively arranged at four corners of the table top frame 1. For example, two ends of each longitudinal rod 11 may be fixedly connected with one leg 2, and a total of four legs 2 are connected to the two longitudinal rods 11. One end of the supporting leg 2 is fixedly connected with the table top frame 1, specifically, fixedly connected with the lower surface of the vertical rod 11 of the table top frame 1, and the other end of the supporting leg 2 is arranged on the ground. The leg 2 comprises a first section 21 and a second section 22 of telescopic connection, by which is meant: the relative position between the first section 21 and the second section 22 may vary along the length extension of the leg 2, such that the overall length of the leg 2 can be lengthened or shortened. The table top plate 3 is arranged in the hollow part 13 of the table top frame 1, and the table top plate 3 is detachably connected with the table top frame 1. When the table top plate 3 is connected with the table top frame 1, the hollow part 13 of the table top frame 1 is sealed by the table top plate 3; when the table top 3 is removed from the table top frame 1, the hollow part 13 of the table top frame 1 is exposed. In particular, the deck plate 3 may have a substantially rectangular configuration so as to fit the shape of the hollow portion 13. Referring to fig. 1, 2 and 4, the surface of the longitudinal bar 11 adjacent to the hollow portion 13 is provided with a groove 112, in other words, when the two longitudinal bars 11 are disposed at intervals, the groove 112 is located on the surface of the two longitudinal bars 11 opposite to each other. The longitudinal direction of the groove 112 extends in the same direction as the longitudinal direction of the longitudinal rod 11, and further, both ends of the groove 112 penetrate end faces of both ends of the longitudinal rod 11 in the longitudinal direction. The two opposite edges of the deck plate 3 are placed in the grooves 112, in other words, for the deck plate 3 having a substantially rectangular structure, two of the two opposite edges are substantially parallel to the longitudinal direction of extension of the side rails 11, the other two opposite edges are substantially parallel to the longitudinal direction of extension of the cross rails 12, and two of the edges of the deck plate 3 that are substantially parallel to the longitudinal direction of extension of the side rails 11 are placed in the grooves 112 of the side rails 11. Specifically, the thickness of the edge of the deck plate 3 placed in the groove 112 is substantially equal to the distance between the two side walls of the groove 112 in the vertical direction. Referring to fig. 4, the table panel 3 includes a first plate 31, a second plate 32 and a supporting column 33. Wherein, two opposite edges of the first plate 31 are disposed in the groove 112. Specifically, the first plate 31 has a substantially rectangular structure, and when in use, the upper surface and the lower surface of the first plate 31 extend substantially along the horizontal plane. The first plate 31 has two edges extending in a direction substantially corresponding to the longitudinal direction of the side rail 11. Two edges of the first plate 31, which substantially coincide with the longitudinal direction of the side rail 11, are placed in the groove 112 and caught by the side walls of the groove 112, so that the displacement of the first plate 31 in the vertical direction shown in fig. 4 is restricted. The second plate 32 is spaced apart from the first plate 31 and is substantially parallel to the first plate 31, in other words, the upper and lower surfaces of the second plate 32 extend substantially in the horizontal plane direction. The length of the second plate 32 is greater than the length of the first plate 31 along the length extension of the crossbar 12. The length of the second plate 32 is substantially equal to the length of the first plate 31 along the length extension direction of the vertical rod 11, and the surface of the second plate 32 facing the first plate 31 is in contact with the table top frame 1. One end of the supporting column 33 is fixedly connected to the first plate 31, and the other end is fixedly connected to the second plate 32. In use, the two side edges of the first plate 31 are disposed in the grooves 112, the second plate 32 is located above the first plate 31, and the lower surface of the second plate 32 contacts with the upper surface of the table frame 1. The supporting columns 33 serve to fixedly connect the first board 31 and the second board 32, and the number of the supporting columns 33 may be multiple, so as to serve a stronger supporting function to increase the carrying capacity of the table panel 3.

The T-beam platform base construction platform in the tunnel provided by the embodiment of the invention comprises a platform surface frame 1, supporting legs 2 and a platform panel 3, wherein the platform surface frame 1 is basically in a rectangular structure and comprises two longitudinal rods 11 and two transverse rods 12 which are detachably connected, and the platform surface frame 1 is enclosed to form a hollow part 13. The quantity of landing leg 2 is at least four, four landing legs 2 set up respectively in the four corners of mesa frame 1, the one end of landing leg 2 with mesa frame 1 fixed connection, the other end are used for setting up in ground, and landing leg 2 includes first festival section 21 and the second festival section 22 of scalable connection. The table top plate 3 is arranged in the hollow part 13 and is detachably connected with the table top frame 1. When transporting the T-beam platform base construction platform in the tunnel, the platform surface frame 1 and the platform surface plate 3 can be detached, thereby being convenient for transportation. After the components of the T-beam platform base construction platform in the tunnel are transported into the tunnel, the components can be assembled in the tunnel, the levelness of the table top frame 1 can be adjusted by adjusting the distance between the first section 21 and the second section 22 of the supporting leg 2, so that when the platform panel 3 is installed on the table top frame 1, the upper surface of the platform panel 3 is basically located in the horizontal plane, a horizontal plane suitable for T-beam forming is constructed by the T-beam platform base construction platform in the tunnel, the T-beam pouring mold is installed by taking the upper surface of the platform panel 3 as a reference, and then the T-beam is poured. Because the table-board frame 1 and the table-board 3 of the T-beam pedestal in the tunnel can be detached, the transportation is convenient, and the transportation cost is low. And because the horizontal plane can be constructed by adjusting the supporting legs 2, the T-shaped beam can be cast without specially constructing a prefabricated field. The T-beam platform base in the tunnel can be conveyed into the tunnel to be installed and used for pouring and forming of the T beam, and the transportation cost of the T beam is greatly reduced due to the fact that the T-beam platform base is close to a construction site where the T beam needs to be used. In use, the edge of the deck plate 3 substantially parallel to the extension direction of the crossbar 12 rests against the surface of the crossbar 12 adjacent to the hollow portion 13, i.e. against the inner side surface of the crossbar 12; the position of the deck plate 3 in the vertical direction is defined by both sides of the groove 112, so that both side edges of the deck plate 3 are held in the groove 112. When the deck plate 3 needs to be disassembled, the cross rod 12 on one side is firstly disassembled, and then the deck plate 3 is moved along the direction of the groove 112, so that the deck plate 3 is separated from the groove 112; when the deck plate 3 needs to be installed, the two side edges of the deck plate 3 are placed in the groove 112, and then the deck plate 3 is pushed along the length extension direction of the groove 112. The first plate 31 and the groove 112 are matched to limit the position of the deck plate 3 in the vertical direction as shown in fig. 4, and the second plate 32 can be used for constructing a larger plane, so that the installation of the T-beam pouring formwork is facilitated. Therefore, the T-beam platform base construction platform in the tunnel provided by the invention is beneficial to reducing the total cost of T-beam forming.

In some embodiments, the leg 2 may be provided as a cylinder, a hydraulic cylinder or a jack, with a piston rod of the cylinder, the hydraulic cylinder or the jack as the first section 21 and a cylinder as the second section 22, so that the telescopic connection of the first section 21 and the second section 22 can be realized, thereby changing the total length of the leg 2.

In some other embodiments, referring to fig. 1, the legs 2 may also be arranged: the leg 2 further comprises a sleeve 24, one end of the first section 21 is fixedly connected with the longitudinal bar 11 of the table top frame 1, and the other end is positioned in the sleeve 24 and is in threaded connection with one end of the sleeve 24. For example, in the orientation shown in FIG. 1, the upper end of the first segment 21 is fixedly attached to the lower surface of the side rail 11, and the lower end of the first segment 21 is positioned within the sleeve 24 and threadably attached to the upper end of the sleeve 24. For example, the first section 21 may be provided with an external thread and the inner wall of the sleeve 24 may be provided with an internal thread adapted to the first section 21. One end of the second section 22 is located in the sleeve 24 and is threadedly connected to an end of the sleeve 24 remote from the first section 21, the other end of the second section 22 being for location at the ground. For example, in the orientation shown in FIG. 1, the upper end of the second segment 22 is threadably connected to the lower surface of the sleeve 24. For example, the inner surface of the lower portion of the sleeve 24 may be provided with internal threads and the second section 22 may be provided with external threads that mate with the internal threads of the lower portion of the sleeve 24. The thread on the first section 21 is of opposite hand to the thread on the second section 22. For example, the threads of the first section 21 may be left-handed threads and the threads of the second section 22 may be right-handed threads, and correspondingly, the inner surface of the upper end of the sleeve 24 may be left-handed threads and the inner surface of the lower end of the sleeve 24 may be right-handed threads. Of course, in other embodiments, the threads of the first section 21 may be right-handed threads and the threads of the second section 22 may be left-handed threads. When the length of the supporting leg 2 is required to be adjusted, the sleeve 24 is rotated, and the first section 21 is fixedly connected with the vertical rod 11, so that the first section 21 cannot rotate around the axis of the first section 21; since the lower surface of the second segment 22 is in contact with the ground, the second segment does not rotate around its axis, so that both the first segment 21 and the second segment 22 can rotate relative to the sleeve 24, and under the action of the threads, the first segment 21 and the second segment 22 can simultaneously go deep into the sleeve 24 or simultaneously slide out of the sleeve 24, thereby shortening or lengthening the total length of the leg 2.

It should be noted that the structure of the leg 2 may have various forms as long as the length of the leg 2 can be adjusted. Different configurations of legs 2 have different applicability. For example, in order to realize that the upper surfaces of the table top frame 1 and the table top plate 3 are basically located in a horizontal plane in an area with obviously uneven terrain, the length of the supporting legs 2 needs to be adjusted more, and at the moment, air cylinders, hydraulic cylinders or jacks can be selected as the supporting legs 2, so that the aim of saving labor is fulfilled; if the adjustment of the leg 2 is expected to be small in a relatively flat terrain, the leg 2 in which the first section 21 and the second section 22 are connected by the sleeve 24 in a threaded manner can be selected, when the sleeve 24 is rotated, the rotation of the sleeve 24 is converted into a relative movement of the sleeve 24 and the first section 21 and the second section 22 in the vertical direction, and one rotation of the sleeve 24 corresponds to one thread pitch of the movement of the sleeve 24 relative to the first section 21 and the second section 22, so that a high adjustment accuracy can be achieved.

In some embodiments, referring to fig. 1, an operation panel 23 is further disposed outside the sleeve 24, and the operation panel 23 is fixedly connected to the sleeve 24. Specifically, operation panel 23 includes operating ring and connecting rod, and the internal diameter of operating ring is greater than sleeve 24's external diameter, and the sleeve 24 outside is located to the operating ring, and the length direction of connecting rod sets up along the radial of operating ring, the inboard fixed connection of connecting rod one end and operating ring, the other end and sleeve 24's surface fixed connection. The number of the connecting rods may be set to two or more, and the two or more connecting rods are distributed at intervals in the circumferential direction of the operation panel 23. By providing the operation panel 23, the sleeve 24 can be more easily rotated, and a power saving effect is achieved.

In some other embodiments, uneven friction may be provided on the outer surface of the sleeve 24 to increase the maximum static friction between the hand and the surface of the sleeve 24 when the sleeve 24 is rotated, thereby preventing slippage between the hand and the surface of the sleeve 24 and facilitating rotation of the sleeve 24.

In some embodiments, referring to fig. 2 and 3, the number of the deck boards 3 is plural, and the plural deck boards 3 are arranged along the length extending direction of the vertical bar 11. The edges of two adjacent deck boards 3 are in contact, thereby forming a relatively smooth upper surface. When a plurality of deck boards 3 are spliced, the edges of the adjacent two first boards 31 and second boards 32 in the same length extending direction of the cross bar 12 contact with each other. The installation that forms bigger upper surface in order to be used for T roof beam to pour the template is spliced through a plurality of deck plate 3 for the volume of each deck plate 3 can be less relatively, thereby the transportation of the interior T roof beam platform of tunnel bench construction platform of further being convenient for.

In some embodiments, referring to fig. 2, the vertical bar 11 is provided with a plurality of first connection holes 111, the plurality of first connection holes 111 are arranged along a length extending direction of the vertical bar 11, specifically, an axial direction of each first connection hole 111 extends along the length extending direction of the horizontal bar 12, and the first connection hole 111 penetrates through the vertical bar 11 in the direction. Specifically, the first connection hole 111 penetrates through the surface of the longitudinal bar 11 opposite to the hollow portion 13 at one end, and penetrates through the side wall of the groove 112 facing the hollow portion 13 at the other end. The end of the cross bar 12 is provided with a second connecting hole, specifically, the second connecting hole extends along the length direction of the cross bar 12, and the second connecting hole can be a blind hole. The table top frame 1 further comprises a connecting member 14, and the connecting member 14 is detachably connected to the first connecting hole 111 and the second connecting hole. Specifically, the first connection hole 111 and the second connection hole may be both provided as threaded holes, and the connection member 14 may be provided as a screw rod. The connecting member 14 passes through the first connecting hole 111, and the end of the connecting member 14 extends into the second connecting hole, so that the longitudinal bar 11 can be detachably connected with the lateral bar 12. Further, one end of the connecting member 14 away from the cross bar 12 protrudes from the surface of the longitudinal bar 11, and the end of the connecting member 14 may be provided with a nut, thereby achieving the fixing. If the length of prefabricated T roof beam needs to be adjusted, the relative position of horizontal pole 12 and vertical pole 11 can be adjusted to the accessible, connects horizontal pole 12 on different first connecting hole 111 to the area of adjustable hollow portion 13, and then the adjustment is located the quantity of deck plate 3 of hollow portion 13, makes the upper surface of deck plate 3 can satisfy operation requirement.

In some embodiments, referring to fig. 1, 5 and 6, the T-beam platform construction platform in the tunnel further includes a calibration assembly 4, and the calibration assembly 4 includes a rod 41 and a rotating structure. The rod body 41 is basically a cylindrical structure, one end of the rod body 41 is connected with the table top frame 1, and specifically, the rod body 41 and the table top frame 1 may be fixedly connected or detachably connected. The length direction of the lever body 41 extends substantially in the horizontal direction. The rotating structure includes a bearing 42 fixedly sleeved on the rod 41, specifically, the inner ring of the bearing 42 is fixedly sleeved on the rod 41 in an interference fit manner, and can also be welded on the rod 41. The rotating structure further comprises a plumb member and a laser emitting member 43 fixedly connected to the outer ring of the bearing 42. Wherein, the number of the laser emitting parts 43 is two, and the two laser emitting parts 43 are respectively connected to two ends of the first radial direction L1 of the bearing 42 and are used for emitting laser along the first radial direction L1 of the bearing 42. For example, the laser emitting member 43 includes a power supply compartment and a laser lamp electrically connected to the power supply compartment, and a battery is disposed in the power supply compartment, so that the laser lamp is powered on to emit laser. One end of the plumb part is fixedly connected with the outer ring of the bearing 42, the other end of the plumb part is a free end, and the length direction of the plumb part extends along the second radial direction L2 of the bearing 42. For example, the plumb member may include a plumb rod 44 and a weight 45, and one end of the plumb rod 44 is fixedly connected to the outer ring of the bearing 42 and the other end is fixedly connected to the weight 45. The end where the weight 45 is located is the free end of the plumb member. The length of the plumb rod 44 extends in a second radial direction L2. The first radial direction L1 is perpendicular to the second radial direction L2. With the above-described structure, the outer race of the bearing 42 can freely rotate around the rod body 41. Since the two laser emitting members 43 are located at two ends of the first radial direction L1, the resultant force of the gravity of the two laser emitting members passes through the center of the outer ring of the bearing 42, so that the moment for driving the outer ring of the bearing 42 to rotate is not generated. Whereas, under the action of the weight of the plumb, the position of the plumb is always at the lowest position of the center of gravity, i.e., the plumb rod 44 may always extend in the vertical direction, in other words, the second radial direction L2 is in the vertical direction. The first radial direction L1 is now in the horizontal direction so that the laser light emitted by the two laser emitting members 43 is in the horizontal direction. So that the levelness of the upper surface of the table top 3 can be calibrated by the laser light emitted from the laser emitting member 43.

In some embodiments, the calibration assembly 4 is connected to each of the side rail 11 and the cross rail 12, the calibration assembly 4 connected to the side rail 11 is used for calibrating the levelness of the side rail 11, and the calibration assembly 4 connected to the cross rail 12 is used for calibrating the levelness of the cross rail 12. Specifically, one end of the rod 41 of the calibration assembly 4 is connected to the first connection hole 111 of the vertical rod 11. For example, the rod 41 may be provided with a threaded portion so that the rod 41 can be coupled to the side rail 11 through the first coupling hole 111. Threaded holes may also be provided in crossbar 12 so that rods 41 may also be attached to crossbar 12. The alignment assembly 4 may be attached to the middle of each cross bar 12 and each side bar 11.

The embodiment of the invention also provides a construction method of the T beam in the tunnel, which comprises the following steps:

s1, transporting a longitudinal rod 11, a cross rod 12, a deck plate 3 and supporting legs 2 into a tunnel;

s2, connecting the longitudinal rods 11, the cross rods 12 and the deck plate 3, and adjusting the supporting legs 2 to form a T-beam bench base construction platform in the tunnel;

specifically, the number of the vertical rods 11 is two, and the two vertical rods are respectively a first vertical rod 11a and a second vertical rod 11 b. The number of the cross bars 12 is two, and the two cross bars are respectively a first cross bar 12a and a second cross bar.

Step S2 may be further refined as:

s201, arranging the lower ends of the supporting legs 2 on the ground in a tunnel, and connecting two supporting legs 2 to each longitudinal rod 11;

s202, referring to fig. 7, the lengths of the support legs 2 at the two ends of the first vertical rod 11a are adjusted, so that the length extending direction of the first vertical rod 11a is substantially along the horizontal direction;

s203, please refer to fig. 8, the second vertical bar 11b and the first vertical bar 11a are arranged at an interval, the first vertical bar 11a and the second vertical bar 11b are connected through the first cross bar 12a, and the length of the leg 2 on the second vertical bar 11b near one end of the first cross bar 12a is adjusted, so that the length extending direction of the first cross bar 12a is substantially along the horizontal direction;

s204, adjusting the length of the supporting leg 2 at the other end of the second vertical rod 11b to enable the length extending direction of the second vertical rod 11b to be substantially along the horizontal direction;

s205, installing the table top plate 3 in the table top frame 1;

specifically, referring to fig. 9, the two side edges of the first plate 31 of one deck plate 3 are clamped into the grooves 112 from the ends of the two vertical rods 11, the second plate 32 is positioned on the upper portion of the first plate 31, the deck plate 3 is pushed along the length extending direction of the grooves 112, the deck plate 3 abuts against the first cross rod 12a, and then the rest deck plates 3 are sequentially pushed in.

S206, please refer to fig. 2 and 9, one end of the second cross bar is connected to one end of the first longitudinal bar 11a far from the first cross bar 12a, and the other end of the second cross bar is connected to one end of the second longitudinal bar 11b far from the first cross bar 12a, so as to check whether the extending direction of the second cross bar is substantially along the horizontal direction. If so, the installation of the vertical rods 11, the horizontal rods 12 and the table panel 3 is finished, and the length adjustment of the supporting legs 2 is also finished; if not, the legs 2 are further fine-tuned until each longitudinal bar 11 and each transverse bar 12 extends substantially horizontally. The vertical rods 11 and the horizontal rods 12 have substantially the same height in the vertical direction, and it is known that the upper surface of the deck plate 3 also extends substantially in the horizontal direction.

S4, erecting a T-beam pouring template and pouring the T-beam by taking the upper surface of the deck plate 3 as a reference;

specifically, the upper surface of the deck plate 3 is used as a standard for casting a template bottom plate of the T beam, the T beam casting template is erected on the upper surface of the deck plate 3, and the T beam is cast.

And S5, after the pouring is finished, removing the pouring template, and moving the T beam to a construction site.

According to the construction method of the T-beam platform in the tunnel, which is provided by the embodiment of the invention, based on the construction platform of the T-beam platform in the tunnel, all parts of the construction platform of the T-beam platform in the tunnel can be detached, so that the transportation cost is lower; the construction method can construct a horizontal plane through the T-beam platform construction platform in the tunnel, thereby reducing the requirements on the site; the prefabrication of the T beam can be carried out in the tunnel, and the T beam is close to a construction site, so that the transportation cost can be reduced, and the adverse effect of rainfall weather on the T beam forming can be avoided.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a T roof beam platform base construction platform in tunnel which characterized in that includes:

the table top frame is basically in a rectangular structure and comprises two longitudinal rods and two transverse rods which are detachably connected, a hollow part is formed by enclosing, a groove is formed in the surface of each longitudinal rod adjacent to the hollow part, the length direction of the groove extends in the same direction as the length direction of the longitudinal rods, two ends of the groove penetrate through the end faces of two ends of each longitudinal rod in the length extending direction, and two opposite edges of the table top plate are arranged in the grooves;

the number of the supporting legs is at least four, the supporting legs are arranged at four corners of the table top frame, one ends of the supporting legs are fixedly connected with the table top frame, the other ends of the supporting legs are arranged on the ground, and the supporting legs comprise a first section and a second section which are in telescopic connection;

the table top plate is arranged in the hollow part and is detachably connected with the table top frame;

the table panel comprises a first plate body, a second plate body and a supporting column, wherein two opposite edges of the first plate body are arranged in the groove; the second plate body is spaced from the first plate body, is basically parallel to the first plate body, and is longer than the first plate body along the length extension direction of the transverse rod, the length of the second plate body is basically equal to that of the first plate body along the length extension direction of the longitudinal rod, and the surface of the second plate body, close to the first plate body, is in contact with the table top frame; one end of the supporting column is fixedly connected with the first plate body, and the other end of the supporting column is fixedly connected with the second plate body.

2. The in-tunnel T-beam deck construction platform of claim 1, wherein the legs further comprise a sleeve, one end of the first section being fixedly connected to the side rails of the deck frame and the other end being positioned within the sleeve and threadedly connected to one end of the sleeve; one end of the second section is positioned in the sleeve and is in threaded connection with one end of the sleeve far away from the first section, and the other end of the second section is used for being arranged on the ground; the first section has a thread with a direction of rotation opposite to the direction of rotation of the thread on the second section.

3. A T-beam platform construction platform in a tunnel as claimed in claim 2, wherein an operation panel is further arranged outside the sleeve, and the operation panel is fixedly connected with the sleeve.

4. The T-beam platform construction platform in a tunnel according to claim 1, wherein the number of the platform panels is multiple, and the multiple platform panels are arranged along the length extension direction of the longitudinal rod.

5. The T-beam platform construction platform in a tunnel according to claim 1, wherein a plurality of first connection holes are arranged on the vertical rod, the first connection holes are arranged along the length extension direction of the vertical rod, a second connection hole is arranged at the end of the horizontal rod, and the platform frame further comprises a connecting piece which is detachably connected with the first connection holes and the second connection holes.

6. The in-tunnel T-beam pedestal construction platform of claim 5, further comprising a calibration assembly comprising:

the rod body is of a cylindrical structure, one end of the rod body is connected with the table top frame, and the length direction of the rod body basically extends along the horizontal direction;

the rotating structure comprises a bearing, a plumb part and a laser emitting part, wherein the bearing is fixedly sleeved on the rod body through an inner ring, and the plumb part and the laser emitting part are fixedly connected to an outer ring of the bearing;

the bearing comprises a bearing body, a bearing, two laser emitting pieces and a control unit, wherein the number of the laser emitting pieces is two, the two laser emitting pieces are respectively connected to two ends of the bearing in the first radial direction and are used for emitting laser along the first radial direction of the bearing; one end of the plumb part is fixedly connected with the outer ring of the bearing, the other end of the plumb part is a free end, and the length direction of the plumb part extends along the second radial direction of the bearing; the first radial direction is perpendicular to the second radial direction.

7. The T-beam pedestal construction platform in a tunnel of claim 6, wherein the calibration assembly is connected to both the vertical rod and the cross rod, the calibration assembly connected to the vertical rod is used for calibrating the levelness of the vertical rod, and the calibration assembly connected to the cross rod is used for calibrating the levelness of the cross rod;

one end of the rod body of the calibration assembly is connected with the first connecting hole of the longitudinal rod.

8. A construction method of a T-beam platform in a tunnel is characterized in that the construction platform of the T-beam platform in the tunnel based on any one of claims 1 to 7 comprises the following steps:

9. The method for constructing a T-beam platform in a tunnel according to claim 8, wherein the two longitudinal rods are a first longitudinal rod and a second longitudinal rod respectively; the two cross rods are respectively a first cross rod and a second cross rod;

the step is connected vertical pole, horizontal pole and deck plate, adjusts the landing leg, and T roof beam platform base construction platform includes in the formation tunnel:

the lower ends of the supporting legs are arranged on the ground in the tunnel, and each longitudinal rod is connected with two supporting legs;

adjusting the length of the supporting legs at the two ends of the first longitudinal rod to ensure that the length extension direction of the first longitudinal rod is basically along the horizontal direction;

the second longitudinal rod and the first longitudinal rod are arranged at an interval, the first longitudinal rod and the second longitudinal rod are connected through the first cross rod, the length of a supporting leg on the second longitudinal rod, which is close to one end of the first cross rod, is adjusted, and the length extension direction of the first cross rod is basically along the horizontal direction;

adjusting the length of the supporting leg at the other end of the second longitudinal rod to enable the length extension direction of the second longitudinal rod to be basically along the horizontal direction;

mounting a deck plate in a deck frame;

one end of the second transverse rod is connected with one end, far away from the first transverse rod, of the first longitudinal rod, the other end of the second transverse rod is connected with one end, far away from the first transverse rod, of the second longitudinal rod, and whether the extending direction of the second transverse rod is basically along the horizontal direction is checked.

10. The method of claim 9, wherein the step of mounting the deck plate to the deck frame comprises:

the edges of the two sides of the first plate body of one deck plate are clamped into the grooves from the end parts of the two longitudinal rods, the second plate body is positioned on the upper part of the first plate body, the deck plate is pushed along the length extending direction of the grooves, the deck plate is abutted against the first transverse rod, and then the rest of deck plates are pushed in sequence.