CN113482658B - Construction platform and method for T-beam pedestal in tunnel - Google Patents

Construction platform and method for T-beam pedestal in tunnel Download PDF

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Publication number
CN113482658B
CN113482658B CN202110884977.4A CN202110884977A CN113482658B CN 113482658 B CN113482658 B CN 113482658B CN 202110884977 A CN202110884977 A CN 202110884977A CN 113482658 B CN113482658 B CN 113482658B
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China
Prior art keywords
rod
tunnel
table top
longitudinal
longitudinal rod
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CN202110884977.4A
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CN113482658A (en
Inventor
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
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Southwest Communication Construction Group Co ltd
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Southwest Communication Construction Group Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E21D11/086—Methods of making concrete lining segments

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention provides a construction platform and a construction method for a T-beam pedestal in a tunnel, and relates to the field of civil engineering. The construction platform of the T-beam pedestal in the tunnel comprises a table top frame, supporting legs and a table top 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, and the supporting legs are arranged at four corners of the table top frame, one end of each supporting leg is fixedly connected with the table top frame, and the other end of each supporting leg is arranged on the ground and comprises a first section and a second section which are connected in a telescopic manner; the table top board is arranged in the hollow part and is detachably connected with the table top frame. The construction method of the T-beam pedestal in the tunnel is based on the construction platform of the T-beam pedestal in the tunnel. The construction platform for the T-beam pedestal in the tunnel is beneficial to reducing the cost of the T-beam for the tunnel.

Description

Construction platform and method for T-beam pedestal in tunnel
Technical Field
The invention relates to the field of civil engineering, in particular to a platform and a method for constructing a T-beam pedestal in a tunnel.
Background
T-beams are widely used for traffic engineering such as tunnels and bridges. In the related art, the T-beam is usually prefabricated in a prefabricated field, which is usually a flat ground. After the prefabrication is completed, the prefabricated steel plate is transported to the site for installation. Prefabricated houses are often equipped with benches for T Liang Jiaozhu, mounting templates. Because the T-beams are typically bulky, prefabricated sites are typically required close to the construction site in order to save transportation costs. For tunnel engineering, tunnels are often in mountain areas, suitable prefabricated fields are difficult to find near the tunnels, or the cost for constructing the prefabricated fields is too high, if the prefabricated fields are too far to be located for finding the ground, the transportation cost is greatly increased. Thus, the overall cost of manufacturing and transporting T-beams for tunnels tends to be high. How to reduce the cost of T-beam for tunnel is a urgent problem to be solved.
Disclosure of Invention
The invention provides a construction platform and a construction method for a T-beam pedestal in a tunnel, and aims to solve the problem of high cost of the T-beam for the tunnel in the related technology.
The invention is realized in the following way:
in a first aspect, the present invention provides a construction platform for a T-beam pedestal 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, adjacent to the hollow part, of the longitudinal rod, the length direction of the groove and the length direction of the longitudinal rod extend in the same direction, two ends of the groove penetrate through to the end faces of the two ends of the longitudinal rod along the length extending direction, and two opposite edges of the table top plate are arranged in the groove; the landing legs are at least four in number and are arranged at four corners of the table top frame, one end of each landing leg is fixedly connected with the table top frame, and the other end of each landing leg is arranged on the ground and comprises a first section and a second section which are connected in a telescopic manner; the table top board is arranged in the hollow part and detachably connected with the table top frame, and comprises a first board body, a second board body and supporting columns, wherein two opposite edges of the first board body are arranged in the grooves; the second plate body is spaced from the first plate body and is basically parallel to the first plate body, the length of the second plate body is longer than that of the first plate body along the length extending 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 extending direction of the longitudinal rod, and the surface, close to the first plate body, of the second plate body is in contact with the table top frame; one end of the support column is fixedly connected with the first plate body, and the other end of the support 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 positioned 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, which is far away from the first section, and the other end of the second section is arranged on the ground; the thread of the first segment is threaded in the opposite direction to the thread on the second segment.
Optionally, an operation panel is further arranged on the outer side of the sleeve, and the operation panel is fixedly connected with the sleeve.
Optionally, the number of deck boards is a plurality of, and a plurality of deck boards 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 mesa frame still includes the connecting piece, and the connecting piece can dismantle with first connecting hole and second connecting hole and be connected.
Optionally, the device further comprises a calibration assembly, including: the rod body is in 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 piece and a laser emitting piece, wherein the bearing is fixedly sleeved on the rod body through an inner ring, and the plumb piece and the laser emitting piece are fixedly connected to the outer ring of the bearing; the laser emission parts are respectively connected to two ends of the bearing in the first radial direction and used for emitting laser along the first radial direction of the bearing; one end of the plumb piece is fixedly connected with the outer ring of the bearing, the other end of the plumb piece is a free end, and the length direction of the plumb piece 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 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; one end of the rod body of the calibration assembly is connected with the first connecting hole of the longitudinal rod.
In a second aspect, the present invention also provides a construction method for a T-beam in a tunnel, which includes the following steps:
transporting the vertical bars, the cross bars, the deck plate and the support legs into the tunnel;
connecting a longitudinal rod, a transverse rod and a deck plate, and adjusting supporting legs to form a T-beam pedestal 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 pouring is completed, removing the pouring template, and moving the T beam to a construction site.
Optionally, the two longitudinal bars are a first longitudinal bar and a second longitudinal bar respectively; the two cross bars are a first cross bar and a second cross bar respectively; the step is connected vertical pole, horizontal pole and deck plate, adjusts the landing leg, forms T roof beam pedestal construction platform in the tunnel and includes: 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; the length of the supporting legs at the two ends of the first longitudinal rod is adjusted, so that the length extending direction of the first longitudinal rod is basically along the horizontal direction; the second longitudinal rod and the first longitudinal rod are arranged at opposite intervals, the first longitudinal rod and the second longitudinal rod are connected through the first transverse rod, and the length of a supporting leg, close to one end of the first transverse rod, on the second longitudinal rod is adjusted, so that the length extension direction of the first transverse rod is basically along the horizontal direction; the length of the supporting leg at the other end of the second longitudinal rod is adjusted, so that the length extension direction of the second longitudinal rod is basically along the horizontal direction; mounting the deck plate in the deck frame; one end of the second cross rod is connected with one end, far away from the first cross rod, of the first longitudinal rod, the other end of the second cross rod is connected with one end, far away from the first cross rod, of the second longitudinal rod, and whether the extending direction of the second cross rod is basically along the horizontal direction is checked.
Optionally, the step of mounting the deck plate in the deck frame comprises: the two side edges 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 with the first cross rod, and then the rest deck plates are sequentially pushed in.
The beneficial effects of the invention are as follows: the invention discloses a tunnel inner T beam pedestal construction platform which is obtained through the design, and the tunnel inner T beam pedestal construction platform comprises a table top frame, supporting legs and a table top panel, wherein the table top frame is basically of a rectangular structure and comprises two longitudinal rods and two transverse rods which are detachably connected, and the table top frame is enclosed to form a hollow part. The number of the supporting legs is at least four, the four supporting legs are respectively arranged at four corners of the table top frame, one end of each supporting leg is fixedly connected with the table top frame, the other end of each supporting leg is arranged on the ground, and each supporting leg comprises a first section and a second section which are connected in a telescopic mode. The table top board is arranged in the hollow part and is detachably connected with the table top frame. When the T beam pedestal construction platform in the tunnel is transported, the platform surface frame and the platform panel can be disassembled, so that the transportation is convenient. After the components of the T-beam pedestal 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 is adjusted by adjusting the distance between the first section and the second section of the supporting leg, so that the upper surface of the table top plate is basically positioned in a horizontal plane when the table top plate is installed on the table top frame, a horizontal plane suitable for T-beam forming is constructed through the T-beam pedestal construction platform in the tunnel, then the installation of a T-beam pouring die is carried out by taking the upper surface of the table top plate as a reference, and then a T-beam is formed by pouring. The table top frame and the table top plate of the T beam pedestal in the tunnel are detachable, so that the transportation is convenient and the transportation cost is low. And the horizontal plane can be constructed by adjusting the supporting legs, so that the installation of the T beam pouring template can be performed without specially constructing a prefabricated field. The T beam pedestal in the tunnel can be conveyed into the tunnel for installation and is 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 pedestal is close to a construction site where the T beam is required to be used. The deck plate comprises a first plate body, a second plate ladder and a supporting column, and the two-layer plate body structure is beneficial to increasing the thickness of the deck plate and improving the bearing capacity of the deck plate; the method is beneficial to providing a plane as large as possible in a tunnel with limited space, so that the processed T beam can have a lower surface as large as possible, namely, the method can be used for processing a T beam structure as large as possible; the connection operation between the table top board and the table top frame can be simplified through the limiting of the groove on the first board body, and when the table top board is used, the first board body is only required to be pushed into the groove. Therefore, the T-beam pedestal 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 needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a T-beam pedestal construction platform in a tunnel provided by an embodiment of the invention when a deck plate is not mounted in a hollow portion;
fig. 2 is a schematic structural diagram of a construction platform for a T-beam pedestal in a tunnel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cross bar of a construction platform of a T-beam pedestal in a tunnel according to an embodiment of the present invention when the cross bar is connected to the middle of a longitudinal bar;
FIG. 4 is a cross-sectional view of a T-beam pedestal construction platform in a tunnel provided by an embodiment of the invention;
FIG. 5 is a schematic structural diagram of a calibration assembly for a T-beam pedestal 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 pedestal construction platform in a tunnel according to an embodiment of the present invention at another view angle;
fig. 7 is a schematic diagram of a construction method of a T-beam pedestal in a tunnel according to an embodiment of the present invention at step S202;
fig. 8 is a schematic structural diagram of a construction method of a T-beam pedestal in a tunnel according to an embodiment of the present invention at step S203;
fig. 9 is a schematic structural diagram of the construction method of the T-beam pedestal in the tunnel according to the embodiment of the present invention at step S205.
Icon: 1-a table top frame; 11-a vertical rod; 111-first connection holes; 112-grooves; 12-a cross bar; 13-a hollow portion; 14-connecting piece; 2-supporting legs; 21-a first segment; 22-a second segment; 23-an operation panel; 24-sleeve; 3-a deck plate; 31-a first plate; 32-a second plate; 33-supporting columns; 4-a calibration assembly; 41-a rod body; 42-bearing; 43-a laser emitting member; 44-plumb bob; 45-weight; l1-a first radial direction; l2-a second radial direction;
11 a-a first longitudinal bar; 11 b-a second longitudinal bar; 12 a-first crossbar.
Detailed Description
For the purpose of making 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 clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as 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 should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
Examples
Please refer to fig. 1-8.
The embodiment of the invention provides a construction platform for a T-beam pedestal in a tunnel, referring to fig. 1 and 2, which comprises a table top frame 1, supporting legs 2 and a table top plate 3. Wherein, mesa frame 1 is the rectangle structure basically, and mesa frame 1 includes two vertical poles 11 and two horizontal poles 12 of detachable connection, and two vertical poles 11 and two horizontal poles 12 enclose and close and form hollow portion 13. The enclosing means that the two longitudinal bars 11 and the two transverse bars 12 are connected to form a closed frame structure with a substantially rectangular shape, and the two longitudinal bars 11 and the two transverse bars 12 are positioned at the edge of the hollow part 13. Specifically, the two longitudinal bars 11 are disposed at intervals and have substantially parallel longitudinal extension directions, and the two cross bars 12 are disposed at intervals and have substantially parallel longitudinal extension directions. One end of the cross bar 12 is detachably connected with one of the longitudinal bars 11, and the other end is detachably connected with the other longitudinal bar 11. The number of the legs 2 is at least four, specifically, the number of the legs 2 may be four, and the four legs 2 are respectively disposed at four corners of the table frame 1. For example, two ends of each longitudinal bar 11 may be fixedly connected to one leg 2, respectively, so that a total of four legs 2 are connected to two longitudinal bars 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 a longitudinal 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 segment 21 and a second segment 22 telescopically connected, by which is meant: the relative position between the first segment 21 and the second segment 22 may vary along the length extension of the leg 2, so that the total length of the leg 2 can be lengthened or shortened. The deck plate 3 is provided in the hollow portion 13 of the deck frame 1, and the deck plate 3 is detachably connected to the deck frame 1. When the table top board 3 is connected with the table top frame 1, the hollow part 13 of the table top frame 1 is blocked by the table top board 3; when the deck plate 3 is detached from the deck frame 1, the hollow portion 13 of the deck frame 1 is exposed. In particular, the deck plate 3 may have a substantially rectangular structure so as to be adapted to the shape of the hollow portion 13. Referring to fig. 1, 2 and 4, the surface of the longitudinal bars 11 adjacent to the hollow portion 13 is provided with grooves 112, in other words, when the two longitudinal bars 11 are spaced apart, the grooves 112 are located on the opposite surfaces of the two longitudinal bars 11. The longitudinal direction of the groove 112 extends in the same direction as the longitudinal direction of the vertical rod 11, and further, both ends of the groove 112 penetrate to the end surfaces of both ends of the vertical rod 11 in the longitudinal direction. The opposite edges of the deck plate 3 are placed in the grooves 112, in other words, for a deck plate 3 of a substantially rectangular structure, two of the opposite edges are substantially parallel to the length extension direction of the side rail 11, and the other two opposite edges are substantially parallel to the length extension direction of the cross rail 12, and two edges of the deck plate 3 substantially parallel to the extension direction of the side rail 11 are placed in the grooves 112 of the side rail 11. Specifically, the thickness of the edge of the deck plate 3 placed in the recess 112 is substantially equal to the distance between both side walls of the recess 112 in the vertical direction. Referring to fig. 4, the deck plate 3 includes a first plate 31, a second plate 32, and a support column 33. Wherein the opposite edges of the first plate 31 are disposed in the grooves 112. Specifically, the first plate 31 has a substantially rectangular structure, and when in use, the upper and lower surfaces of the first plate 31 extend substantially in the horizontal plane direction. The extending direction of two edges of the first plate body 31 is substantially identical to the length extending direction of the longitudinal bar 11. Two edges of the first plate 31, which are substantially identical to the extending direction of the longitudinal bar 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 cross bar 12. Along the length extension direction of the longitudinal bar 11, the length of the second plate 32 is substantially equal to the length of the first plate 31, and the surface of the second plate 32 facing the first plate 31 is in contact with the table frame 1. One end of the supporting column 33 is fixedly connected with the first plate 31, and the other end is fixedly connected with the second plate 32. In use, the edges of the first plate 31 are disposed in the recess 112, the second plate 32 is located above the first plate 31, and the lower surface of the second plate 32 is in contact with the upper surface of the table frame 1. The support columns 33 play a role in fixedly connecting the first plate body 31 and the second plate body 32, and the number of the support columns 33 can be plural, thereby playing a stronger supporting role to increase the carrying capacity of the deck plate 3.
The embodiment of the invention provides the construction platform for the T-beam pedestal in the tunnel, which comprises a table top frame 1, supporting legs 2 and a table top plate 3, wherein the table top 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 table top frame 1 is enclosed to form a hollow part 13. The number of the supporting legs 2 is at least four, the four supporting legs 2 are respectively arranged at four corners of the table top frame 1, one end of each supporting leg 2 is fixedly connected with the table top frame 1, the other end of each supporting leg 2 is arranged on the ground, and each supporting leg 2 comprises a first section 21 and a second section 22 which are connected in a telescopic mode. The deck plate 3 is provided in the hollow portion 13 and detachably connected to the deck frame 1. When the T-beam pedestal construction platform in the tunnel is transported, the platform frame 1 and the platform panel 3 can be disassembled, so that the transportation is convenient. After the components of the T-beam pedestal 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 is adjusted by adjusting the distance between the first section 21 and the second section 22 of the supporting leg 2, so that the upper surface of the table top plate 3 is basically positioned in a horizontal plane when the table top plate 3 is installed on the table top frame 1, a horizontal plane suitable for T-beam forming is constructed through the T-beam pedestal construction platform in the tunnel, then the installation of a T-beam pouring die is carried out by taking the upper surface of the table top plate 3 as a reference, and then a T-beam is poured. The table top frame 1 and the table top plate 3 of the T beam pedestal in the tunnel are detachable, so that the transportation is convenient and the transportation cost is low. And because the water level can be constructed by adjusting the supporting legs 2, the pouring forming of the T beam can be carried out without specially constructing a prefabricated field. The T beam pedestal in the tunnel can be conveyed into the tunnel for installation and is 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 pedestal is close to a construction site where the T beam is required to be used. In use, the edge of the deck plate 3 substantially parallel to the extension direction of the rail 12 abuts against the surface of the rail 12 adjacent to the hollow portion 13, i.e. against the inner side surface of the rail 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 caught in the groove 112. When the table top 3 needs to be disassembled, the cross bar 12 on one side is firstly disassembled, and then the table top 3 is moved along the direction of the groove 112, so that the table top 3 is separated from the groove 112; when the deck plate 3 is required to be mounted, the both side edges of the deck plate 3 are placed in the grooves 112, and then the deck plate 3 is pushed in the length extending direction of the grooves 112. The cooperation of the first plate 31 and the groove 112 may serve as a limit for the deck plate 3 in the vertical direction as shown in fig. 4, and the second plate 32 may be used to construct a larger plane, thereby facilitating installation of the T-beam casting formwork. Therefore, the T-beam pedestal construction platform in the tunnel provided by the invention is beneficial to reducing the total cost of T-beam forming.
In some embodiments, the support leg 2 may be configured 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 a telescopic connection of the first section 21 and the second section 22 may be achieved, thereby changing the overall length of the support leg 2.
In some other embodiments, referring to fig. 1, the leg 2 may also be configured such that: the leg 2 further comprises a sleeve 24, one end of the first segment 21 being fixedly connected to the longitudinal bar 11 of the table top frame 1 and the other end being located in the sleeve 24 and being screwed to 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 coupled 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 threadedly coupled to the upper end of the sleeve 24. For example, the first segment 21 may be provided with external threads and the inner wall of the sleeve 24 may be provided with internal threads adapted to the first segment 21. The second segment 22 has one end located in the sleeve 24 and threadedly connected to the end of the sleeve 24 remote from the first segment 21, and the other end of the second segment 22 is adapted to be disposed at the surface. For example, in the orientation shown in FIG. 1, the upper end of the second segment 22 is threadably coupled 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 segment 22 may be provided with external threads that mate with the internal threads of the lower portion of the sleeve 24. The thread of the first segment 21 is threaded in the opposite direction to the thread on the second segment 22. For example, the threads of the first segment 21 may be left-handed and the threads of the second segment 22 may be right-handed, with corresponding left-handed threads on the inner surface of the upper end of the sleeve 24 and right-handed threads on the inner surface of the lower end of the sleeve 24. Of course, in other embodiments, the threads of the first segment 21 may be right-handed threads and the threads of the second segment 22 left-handed threads. In use, if the length of the leg 2 is to be adjusted, the sleeve 24 is rotated, and the first segment 21 does not rotate about its own axis because the first segment 21 is fixedly connected to the longitudinal bar 11; because the lower surface of the second segment 22 is in contact with the ground, the second segment will not rotate about its own 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 screw thread, the first segment 21 and the second segment 22 will 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 adjustment of the length of the leg 2 can be achieved. The legs 2 of different constructions have different application ranges. For example, if for a region with a significantly uneven topography, in order to achieve that the upper surfaces of the table frame 1 and the table panel 3 are substantially located in a horizontal plane, the legs 2 need to be adjusted to a greater length, and at this time, an air cylinder, a hydraulic cylinder or a jack may be selected as the legs 2, so as to achieve the purpose of saving manpower; if the adjustment amount of the leg 2 is expected to be smaller for a region with a relatively flat topography, the leg 2 in which the first segment 21 and the second segment 22 are screwed through the sleeve 24 may be selected, and 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 segment 21 and the second segment 22 in the vertical direction, and the sleeve 24 is rotated by a circle corresponding to a pitch of the movement of the sleeve 24 relative to the first segment 21 and the second segment 22, so that a higher adjustment accuracy can be realized.
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, the operation panel 23 includes an operation ring and a connecting rod, the inner diameter of the operation ring is larger than the outer diameter of the sleeve 24, the operation ring is arranged outside the sleeve 24, the length direction of the connecting rod is arranged along the radial direction of the operation ring, one end of the connecting rod is fixedly connected with the inner side of the operation ring, and the other end of the connecting rod is fixedly connected with the outer surface of the sleeve 24. The number of the connection bars may be set to two or more, and the two or more connection bars are distributed at intervals along the circumferential direction of the operation panel 23. By providing the operation panel 23, the sleeve 24 can be rotated more easily, and the effect of saving power 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 table panels 3 is plural, and the plural table panels 3 are arranged along the length extending direction of the longitudinal bars 11. The edges of two adjacent deck boards 3 are in contact, thereby forming a relatively smooth upper surface. When the plurality of deck boards 3 are spliced, edges of the adjacent two first board bodies 31 and second board bodies 32 which are in the same direction as the length extension direction of the cross bar 12 are contacted with each other. The installation that forms bigger upper surface in order to be used for T roof beam pouring template through the concatenation of a plurality of deck boards 3 for the volume of each deck board 3 can be less relatively, thereby further be convenient for the transportation of T roof beam pedestal construction platform in the tunnel.
In some embodiments, referring to fig. 2, the longitudinal rod 11 is provided with a plurality of first connecting holes 111, the plurality of first connecting holes 111 are arranged along the length extending direction of the longitudinal rod 11, specifically, the axial direction of each first connecting hole 111 extends along the length extending direction of the cross rod 12, and the first connecting holes 111 penetrate through the longitudinal rod 11 in the direction. Specifically, the first connecting hole 111 penetrates through the surface of the vertical rod 11 opposite to the hollow portion 13 at one end, and penetrates through the sidewall 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, in particular, the second connecting hole extends along the length direction of the cross bar 12, and the second connecting hole may be provided as a blind hole. The table frame 1 further comprises a connection piece 14, the connection piece 14 being detachably connected to the first connection hole 111 and the second connection hole. Specifically, the first connection hole 111 and the second connection hole may be provided as screw holes, and the connection member 14 may be provided as a screw. The connecting piece 14 passes through the first connecting hole 111, and the end of the connecting piece 14 protrudes into the second connecting hole, so that the detachable connection of the longitudinal bar 11 and the transverse bar 12 can be realized. Further, an end of the connecting member 14 far from the cross bar 12 protrudes from the surface of the vertical bar 11, and the end of the connecting member 14 may be provided with a nut, thereby achieving fixation. If the length of the prefabricated T-beam needs to be adjusted, the cross bar 12 is connected to different first connecting holes 111 by adjusting the relative positions of the cross bar 12 and the longitudinal bar 11, so that the area of the hollow portion 13 can be adjusted, and the number of the deck boards 3 positioned in the hollow portion 13 can be adjusted, so that the upper surface of the deck boards 3 can meet the use requirement.
In some embodiments, referring to fig. 1, 5 and 6, the in-tunnel T-beam platform further includes a calibration assembly 4, where the calibration assembly 4 includes a rod 41 and a rotating structure. The rod 41 is basically in a cylindrical structure, one end of the rod 41 is connected with the table top frame 1, and specifically, the rod 41 and the table top frame 1 may be fixedly connected or detachably connected. The length direction of the rod body 41 extends substantially in the horizontal direction. The rotating structure comprises a bearing 42 with an inner ring fixedly sleeved on the rod body 41, specifically, the inner ring of the bearing 42 can be fixedly sleeved on the rod body 41 in an interference fit manner, and can also be welded on the rod body 41. The rotating structure further comprises a plumb and a laser emitting member 43 fixedly connected to the outer ring of the bearing 42. Wherein the number of the laser emitting members 43 is two, and the two laser emitting members 43 are respectively connected to two ends of the bearing 42 in the first radial direction L1 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 source compartment and a laser lamp electrically connected to the power source compartment, and a battery is disposed in the power source compartment, so that the laser lamp is energized to emit laser light. One end of the plumb is fixedly connected with the outer ring of the bearing 42, the other end is a free end, and the length direction of the plumb extends along the second radial direction L2 of the bearing 42. For example, the plumb assembly may include a plumb shaft 44 and a weight 45, where one end of the plumb shaft 44 is fixedly connected to the outer race of the bearing 42 and the other end is fixedly connected to the weight 45. The end of the weight 45 is the free end of the plumb. The lengthwise direction of the plumb shaft 44 extends in the 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 41. Since the two laser emitting members 43 are located at both ends in 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 no moment is generated to drive the outer ring of the bearing 42 to rotate. While the position of the plumb is always at the lowest center of gravity under the weight of the plumb, i.e., the plumb line 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 then 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 deck plate 3 can be calibrated by the laser light emitted from the laser emitting member 43.
In some embodiments, the calibration assemblies 4 are connected to the vertical bars 11 and the horizontal bars 12, the calibration assemblies 4 connected to the vertical bars 11 are used for calibrating the levelness of the vertical bars 11, and the calibration assemblies 4 connected to the horizontal bars 12 are used for calibrating the levelness of the horizontal bars 12. Specifically, one end of the rod 41 of the alignment member 4 is connected to the first connection hole 111 of the vertical rod 11. For example, a threaded portion may be provided on the rod body 41 so that the rod body 41 may be coupled to the vertical rod 11 through the first coupling hole 111. Threaded holes may also be provided in the rail 12 so that the rod body 41 may also be attached to the rail 12. The alignment assembly 4 may be connected in the middle of each cross bar 12 and each side rail 11.
The embodiment of the invention also provides a construction method of the T beam in the tunnel, which comprises the following steps:
s1, conveying a longitudinal rod 11, a transverse rod 12, a table panel 3 and supporting legs 2 into a tunnel;
s2, connecting a longitudinal rod 11, a transverse rod 12 and a deck plate 3, and adjusting the supporting legs 2 to form a T-beam pedestal construction platform in the tunnel;
specifically, the number of the vertical bars 11 is two, and the number is the first vertical bar 11a and the second vertical bar 11b. The number of the cross bars 12 is two, namely a first cross bar 12a and a second cross bar.
Step S2 may be further refined to:
s201, arranging the lower ends of the supporting legs 2 on the ground in a tunnel, and connecting two supporting legs 2 on each longitudinal rod 11;
s202, referring to FIG. 7, the lengths of the supporting legs 2 at the two ends of the first vertical rod 11a are adjusted to enable the length extending direction of the first vertical rod 11a to be basically along the horizontal direction;
s203, referring to FIG. 8, the second vertical rod 11b is arranged opposite to the first vertical rod 11a at intervals, the first vertical rod 11a and the second vertical rod 11b are connected by the first horizontal rod 12a, and the length of the supporting leg 2 on the second vertical rod 11b, which is close to one end of the first horizontal rod 12a, is adjusted so that the length extension direction of the first horizontal rod 12a is basically along the horizontal direction;
s204, adjusting the length of the supporting leg 2 at the other end of the second longitudinal rod 11b to enable the length extension direction of the second longitudinal rod 11b to be basically along the horizontal direction;
s205, installing the table top 3 in the table top frame 1;
specifically, referring to fig. 9, the edges of the two sides of the first plate 31 of one deck plate 3 are clamped into the grooves 112 from the ends of the two longitudinal bars 11, the second plate 32 is positioned on the upper portion of the first plate 31, and the deck plate 3 is pushed along the length extending direction of the grooves 112, so that the deck plate 3 is abutted against the first cross bar 12a, and then the rest of deck plates 3 are sequentially pushed in.
S206 referring to FIGS. 2 and 9, one end of the second cross bar is connected to one end of the first vertical 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 vertical bar 11b far from the first cross bar 12a, so as to check whether the extending direction of the second cross bar is basically along the horizontal direction. If yes, the installation of the longitudinal bars 11, the transverse bars 12 and the table top plate 3 is completed, and the length adjustment of the supporting legs 2 is also completed; if not, the leg 2 is trimmed again until each longitudinal bar 11 and each transverse bar 12 extend substantially horizontally. The vertical bars 11 and the cross bars 12 are substantially equal in height in the vertical direction, and then 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 a 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 reference of a template bottom plate of the T-beam pouring template, and the T-beam pouring template is erected on the upper surface of the deck plate 3 to pour the T-beam.
S5, after pouring is completed, removing the pouring template, and moving the T beam to a construction site.
According to the construction method for the T-beam pedestal in the tunnel, provided by the embodiment of the invention, based on the construction platform of the T-beam pedestal in the tunnel, as all the components of the construction platform of the T-beam pedestal in the tunnel can be disassembled, the transportation cost is lower; according to the construction method, a horizontal plane can be constructed through a T-beam pedestal construction platform in the tunnel, so that the requirements on the site are reduced; the T beam can be prefabricated in the tunnel, and the T beam is not only close to a construction site, so that the transportation cost can be reduced, but also adverse effects on T beam forming caused by rainfall weather can be avoided.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. 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 (8)

1. The utility model provides a T roof beam pedestal 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 the 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 rod, and two ends of the groove penetrate through to the end faces of two ends of the longitudinal rod along the length extending direction;
the landing legs are at least four in number and are arranged at four corners of the table top frame, one end of each landing leg is fixedly connected with the table top frame, and the other end of each landing leg is arranged on the ground and comprises a first section and a second section which are connected in a telescopic manner;
the table top plate is arranged in the hollow part and detachably connected with the table top frame, and two opposite edges of the table top plate are arranged in the grooves;
the deck plate comprises a first plate body, a second plate body and supporting columns, wherein two opposite edges of the first plate body are arranged in the grooves; the second plate body is spaced from the first plate body and is basically parallel to the first plate body, the length of the second plate body is longer than that of the first plate body along the length extending 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 extending direction of the longitudinal rod, and the surface, close to the first plate body, of the second plate body is in contact with the table top frame; one end of the support column is fixedly connected with the first plate body, and the other end of the support column is fixedly connected with the second plate body.
2. The in-tunnel T-beam pedestal construction platform of claim 1, wherein the leg further comprises a sleeve, one end of the first section is fixedly connected with a longitudinal rod of the table top frame, and the other end is positioned 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, which is far away from the first section, and the other end of the second section is used for being arranged on the ground; the first segment has a thread turn opposite to a thread turn on the second segment.
3. The construction platform for the T-beam pedestal in the tunnel according to claim 2, wherein an operation panel is further arranged on the outer side of the sleeve, and the operation panel is fixedly connected with the sleeve.
4. The in-tunnel T-beam landing construction platform of claim 1, wherein said plurality of deck panels is plural, and a plurality of said deck panels is arranged along a length extension of said longitudinal bar.
5. The construction platform for the T-beam pedestal in the tunnel according to claim 1, wherein the longitudinal rod is provided with a plurality of first connecting holes, the first connecting holes are distributed along the length extension direction of the longitudinal rod, the end part of the transverse rod is provided with a second connecting hole, and the table top frame further comprises a connecting piece which is detachably connected with the first connecting holes and the second connecting holes.
6. The in-tunnel T-beam bench construction platform of claim 5, further comprising a calibration assembly comprising:
the rod body is in 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 piece and a laser emitting piece, wherein the bearing is fixedly sleeved on the rod body through an inner ring, and the plumb piece and the laser emitting piece are fixedly connected to the outer ring of the bearing;
the laser emission parts are respectively connected to two ends of the bearing in the first radial direction and used for emitting laser along the first radial direction of the bearing; one end of the plumb piece is fixedly connected with the outer ring of the bearing, the other end of the plumb piece is a free end, and the length direction of the plumb piece extends along the second radial direction of the bearing; the first radial direction is perpendicular to the second radial direction.
7. The construction platform for the T-beam pedestal in the tunnel according to claim 6, wherein the calibration assemblies are connected to the longitudinal rod and the transverse rod, the calibration assemblies connected with the longitudinal rod are used for calibrating the levelness of the longitudinal rod, and the calibration assemblies connected with the transverse rod are used for calibrating the levelness of the transverse 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 pedestal in a tunnel, characterized by being based on the construction platform of the T-beam pedestal in the tunnel according to any one of claims 1 to 7, comprising the following steps:
transporting the vertical bars, the cross bars, the deck plate and the support legs into the tunnel;
connecting a longitudinal rod, a transverse rod and a deck plate, and adjusting the supporting legs to form a T-beam pedestal 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 pouring is completed, removing the pouring template, and moving the T beam to a construction site.
The step is connected vertical pole, horizontal pole and deck plate, adjusts the landing leg, forms T roof beam pedestal construction platform in the tunnel and includes:
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;
the length of the supporting legs at the two ends of the first longitudinal rod is adjusted, so that the length extending direction of the first longitudinal rod is basically along the horizontal direction;
the second longitudinal rod and the first longitudinal rod are arranged at opposite intervals, the first longitudinal rod and the second longitudinal rod are connected through the first transverse rod, and the length of a supporting leg, close to one end of the first transverse rod, on the second longitudinal rod is adjusted, so that the length extension direction of the first transverse rod is basically along the horizontal direction;
the length of the supporting leg at the other end of the second longitudinal rod is adjusted, so that the length extension direction of the second longitudinal rod is basically along the horizontal direction;
mounting the deck plate in the deck frame;
one end of the second cross rod is connected with one end, far away from the first cross rod, of the first longitudinal rod, the other end of the second cross rod is connected with one end, far away from the first cross rod, of the second longitudinal rod, and whether the extending direction of the second cross rod is basically along the horizontal direction is checked.
The two side edges 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 with the first cross rod, and then the rest deck plates are sequentially pushed in.
CN202110884977.4A 2021-08-03 2021-08-03 Construction platform and method for T-beam pedestal in tunnel Active CN113482658B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203867583U (en) * 2014-06-10 2014-10-08 中铁十一局集团有限公司 Tunnel constructing platform
CN108979664A (en) * 2018-06-20 2018-12-11 中铁六局集团有限公司 Existing subway tunnel based on mobile casting platform protects steel structure pouring construction method
CN109505630A (en) * 2019-01-14 2019-03-22 中铁局集团有限公司 Full-hydraulic crawler-type self trestle and construction method
CN110359936A (en) * 2019-07-31 2019-10-22 中国铁道科学研究院集团有限公司铁道建筑研究所 A kind of prefabricated assembled rail flowering structure assembly trolley in tunnel and its control system
CN210396748U (en) * 2019-04-29 2020-04-24 同济大学 Shield tunnel repairing and reinforcing platform
CN211391258U (en) * 2019-11-26 2020-09-01 中铁第五勘察设计院集团有限公司 Whole hole T roof beam transport vechicle
CN211474136U (en) * 2020-01-15 2020-09-11 四川省交通勘察设计研究院有限公司 Large-span frame shed tunnel structure and roof plate structure thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203867583U (en) * 2014-06-10 2014-10-08 中铁十一局集团有限公司 Tunnel constructing platform
CN108979664A (en) * 2018-06-20 2018-12-11 中铁六局集团有限公司 Existing subway tunnel based on mobile casting platform protects steel structure pouring construction method
CN109505630A (en) * 2019-01-14 2019-03-22 中铁局集团有限公司 Full-hydraulic crawler-type self trestle and construction method
CN210396748U (en) * 2019-04-29 2020-04-24 同济大学 Shield tunnel repairing and reinforcing platform
CN110359936A (en) * 2019-07-31 2019-10-22 中国铁道科学研究院集团有限公司铁道建筑研究所 A kind of prefabricated assembled rail flowering structure assembly trolley in tunnel and its control system
CN211391258U (en) * 2019-11-26 2020-09-01 中铁第五勘察设计院集团有限公司 Whole hole T roof beam transport vechicle
CN211474136U (en) * 2020-01-15 2020-09-11 四川省交通勘察设计研究院有限公司 Large-span frame shed tunnel structure and roof plate structure thereof

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