New steel frame tunnel wall protection structure, wall protection system and construction method

Abstract

The present invention discloses a new type of steel frame structure wall protection structure, wall protection system and construction method for a tunnel, wherein the wall protection structure comprises a first column, a second column, a cross beam and an arched beam; wherein the first column and the second column are arranged in parallel and vertically, and the two ends of the cross beam are respectively connected to the lower parts of the first column and the second column; the head end of the arched beam is connected to the upper end of the first column, and the end of the arched beam is connected to the upper end of the second column; the lower ends of the first column and the second column are both connected to a support plate, and a plurality of column feet buried in the foundation are arranged on the side of the support plate away from the first column and the second column. In the wall protection structure in the above technical solution, after the first column, the second column, the cross beam and the arched beam are assembled together, they are fixed by connecting the support plate to the column feet buried in the foundation. With the wall protection structure, each component can be processed separately, and by controlling the quality of each component, the overall quality of the wall protection structure can be effectively controlled, reducing the construction difficulty.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and in particular to a new type of tunnel steel frame wall protection structure, a wall protection system and a construction method. Background Art

[0002] Tunnel support technology refers to building a tunnel space underground in the city to centrally lay various municipal pipelines such as water supply and drainage, gas, electricity, and communications. This method centrally arranges various pipelines, facilitates pipeline operation management and equipment maintenance, avoids the trouble caused by repeated excavation of the road surface due to burying or repairing pipelines, and avoids soil corrosion and damage to pipelines, thereby extending the service life of the pipelines.

[0003] Traditional tunnel support technology generally adopts reinforced concrete box-type structure, which is poured integrally on the foundation during construction. Since tunnels are generally built under the main roads in the city, the overall pouring construction method is slow and difficult to construct, and the quality of the main structure is difficult to control. The construction occupies the road for a long time, causing great interference to the city's traffic. Dust and noise during the construction period will cause certain damage to the urban environment. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the present invention proposes a new type of steel frame wall protection structure for a tunnel, which can effectively control the quality of the main structure of the tunnel, reduce construction difficulty, and improve construction efficiency.

[0006] The present invention also provides a wall protection system having the above wall protection structure.

[0007] The invention also provides a construction method of the wall protection system.

[0008] A new type of steel frame tunnel wall protection structure according to the first embodiment of the present invention comprises: a first column, a second column, a cross beam and an arched beam;

[0009] Among them, the first column and the second column are arranged in parallel and vertically, and the two ends of the crossbeam are respectively connected to the lower parts of the first column and the second column; the head end of the arched beam is connected to the upper end of the first column, and the tail end of the arched beam is connected to the upper end of the second column; the lower ends of the first column and the second column are both connected to a support plate, and a plurality of column feet buried in the foundation are arranged on the side of the support plate away from the first column and the second column.

[0010] According to the embodiment of the present invention, a new type of steel frame structure wall protection structure for a tunnel has at least the following beneficial effects: the new type of steel frame structure wall protection structure for a tunnel in the above technical solution, after the first column, the second column, the cross beam and the arched beam are assembled together, they are connected to the column foot buried in the foundation through the support plate to achieve fixation. With this wall protection structure, each component can be processed separately, and by controlling the quality of each component, the overall quality of the wall protection structure can be effectively controlled, reducing the difficulty of construction.

[0011] According to some embodiments of the present invention, a first flange is provided at the upper end of the first column, a second flange is provided at the upper end of the second column, a third flange matching the shape of the first flange is provided at the head end of the arched beam, and a fourth flange matching the shape of the second flange is provided at the end of the arched beam; the first flange and the third flange, as well as the second flange and the fourth flange, are connected by bolts.

[0012] According to some embodiments of the present invention, a first rubber pad matching the shape of the first flange is provided between the first flange and the third flange; and a second rubber pad matching the shape of the second flange is provided between the second flange and the fourth flange.

[0013] According to some embodiments of the present invention, a first flange is provided at the upper end of the first column, a second flange is provided at the upper end of the second column, a third flange matching the shape of the first flange is provided at the head end of the arched beam, and a fourth flange matching the shape of the second flange is provided at the end of the arched beam; the first flange and the third flange and the second flange and the fourth flange are welded.

[0014] According to some embodiments of the present invention, an exhaust pipe for exhaust is provided on the arched beam.

[0015] According to some embodiments of the present invention, the outer side wall of the arched beam has a first arc plate extending along its axial direction, a mounting block is connected to the first arc plate, and a mounting hole for mounting the exhaust pipe is formed on the mounting block.

[0016] According to some embodiments of the present invention, the first column, the second column and the arched beam are all provided with flow holes for facilitating the flow of concrete.

[0017] According to the second aspect of the present invention, a new steel frame structure tunnel wall protection system comprises a supporting steel plate and a new steel frame structure tunnel wall protection structure of any one of the first aspect of the present invention, wherein a plurality of the wall protection structures are arranged in parallel, and the supporting steel plate is arranged between every two of the wall protection structures; and the supporting steel plate is connected to the wall protection structures at both ends along the width direction thereof.

[0018] The wall protection system according to the embodiment of the present invention has at least the following beneficial effects: the two wall protection structures are connected together by the supporting steel plate, which is convenient for assembly and disassembly; by controlling the quality of the supporting steel plate and the wall protection structure, the overall quality of the wall protection system can be effectively controlled, thereby reducing the difficulty of construction.

[0019] According to some embodiments of the present invention, the inner wall of the first column is provided with a first vertical plate extending on both sides of the axial direction of the arched beam, the inner wall of the second column is provided with a second vertical plate extending on both sides of the axial direction of the arched beam, and the inner side wall of the arched beam is provided with a second curved plate extending on both sides of the axial direction; the inner side surface of the supporting steel plate is sequentially connected to the first vertical plate, the second curved plate and the second vertical plate.

[0020] According to some embodiments of the present invention, sealant is applied to the joints between the supporting steel plate and the first vertical plate, the second curved plate, and the second vertical plate.

[0021] According to some embodiments of the present invention, a plurality of reinforcing ribs are evenly distributed on the support steel plate, and the reinforcing ribs are integrally formed with the support steel plate.

[0022] According to some embodiments of the present invention, a plurality of fixing pins are provided on opposite sides of each two of the wall protection structures, and the fixing pins are engaged with the reinforcing ribs.

[0023] A construction method for a new type of steel frame structure wall protection system for a tunnel according to an embodiment of the third aspect of the present invention is applied to a wall protection system, the system includes a supporting steel plate and a plurality of wall protection structures; the wall protection structure includes a first column, a second column, a cross beam, an arched beam, a support plate and a column foot; a first flange is provided at one end of the first column, a second flange is provided at one end of the second column, a third flange matching the shape of the first flange is provided at the head end of the arched beam, a fourth flange matching the shape of the second flange is provided at the end of the arched beam, a first rubber pad is provided between the first flange and the third flange, and a second rubber pad is provided between the second flange and the fourth flange; an exhaust pipe is provided on the arched beam; the support plate and the column foot are connected by bolts; it is characterized in that it includes the following steps:

[0024] According to the length of the cross beam, the column foot is buried in the foundation at both ends along the length direction of the cross beam, so that the lower end surface of the support plate abuts against the surface of the foundation;

[0025] Vertically hoist the first column, and weld one end of the first column away from the first flange to the upper end surface of the support plate;

[0026] Vertically hoist the second column, and weld one end of the second column away from the second flange to the upper end surface of the support plate;

[0027] Welding the two ends of the crossbeam along the length direction to the lower part of the inner wall of the first column and the lower part of the inner wall of the second column respectively;

[0028] placing the first rubber pad on the first flange, and placing the second rubber pad on the second flange;

[0029] Installing the exhaust pipe on the arched beam through a mounting block;

[0030] The arched beam is hoisted to the upper ends of the first flange and the second flange, so that the third flange abuts against the first flange, and the fourth flange abuts against the second flange; the first flange and the third flange cooperate to press the first rubber pad, and the second flange and the fourth flange cooperate to press the second rubber pad; the first flange and the third flange, the second flange and the fourth flange are connected by bolts;

[0031] After one of the wall protection structures is installed, the next wall protection structure is installed, and the distance between every two wall protection structures matches the width of the supporting steel plate;

[0032] The supporting steel plate is pre-formed with a plurality of reinforcing ribs by means of sheet metal hemming, and the plurality of reinforcing ribs are arranged in parallel along the length direction of the supporting steel plate;

[0033] Laying the supporting steel plate between the two wall protection structures, and providing a plurality of fixing pins on opposite sides of the two wall protection structures according to the positions of the reinforcing ribs on the supporting steel plate, and engaging the fixing pins on the two wall protection structures with the reinforcing ribs to realize the connection between the supporting steel plate and the two wall protection structures;

[0034] Apply sealant at the connection between the supporting steel plate and the two wall protection structures;

[0035] Concrete pouring is carried out along the outer side surface of the supporting steel plate.

[0036] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0038] Figure 1A schematic diagram of the structure of a new type of steel frame tunnel wall protection structure according to an embodiment of the present invention;

[0039] Figure 2 It is a schematic structural diagram of a new type of steel frame structure wall protection system for a tunnel according to an embodiment of the present invention.

[0040] Reference numerals:

[0041] A first column 100, a first flange 110, and a first vertical plate 120;

[0042] A second column 200, a second flange 210, and a second vertical plate 220;

[0043] Crossbeam 300, support plate 400, column foot 500;

[0044] Arched beam 600, third flange 610, fourth flange 620, first curved plate 630, second curved plate 640, flow hole 650;

[0045] Exhaust pipe 700, mounting block 800;

[0046] Support steel plate 900, reinforcing rib 910, reinforcing rib 920, mounting plate 930 DETAILED DESCRIPTION

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] In the description of the present invention, it should be understood that, with respect to descriptions of orientation, the orientations or positional relationships indicated by terms such as “center, longitudinal, lateral, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, circumferential, radial, and axial” are based on the orientations or positional relationships shown in the accompanying drawings and are 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 therefore should not be understood as a limitation on the present invention.

[0049] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Reference below Figure 1 A new type of steel frame wall protection structure for a tunnel according to an embodiment of the first aspect of the present invention is described.

[0052] The overall structure is as follows:

[0053] like Figure 1 As shown, a new type of steel frame structure wall protection structure for a tunnel according to an embodiment of the present invention comprises a first column 100, a second column 200, a cross beam 300 and an arched beam 600. The first column 100 and the second column 200 are arranged in parallel and vertically, one end of the cross beam 300 is connected to the lower part of the first column 100, and the other end of the cross beam 300 is connected to the lower part of the second column 200; the head end of the arched beam 600 is connected to the upper end of the first column 100, and the tail end of the arched beam 600 is connected to the upper end of the second column 200. The lower ends of the first column 100 and the second column 200 are both connected to a support plate 400, and a plurality of column feet 500 are arranged on the side of the support plate 400 away from the first column 100 and the second column 200, and the column feet 500 are buried in the foundation. With the above-mentioned wall protection structure, the first column 100, the second column 200, the cross beam 300 and the arched beam 600 are assembled together and then connected to the column foot 500 buried in the foundation through the support plate 400 for fixation. With the wall protection structure, each component can be processed separately. By controlling the quality of each component, the overall quality of the wall protection structure can be effectively controlled, reducing the difficulty of construction.

[0054] The specific structure is as follows:

[0055] like Figure 1 As shown, in some specific embodiments of the present invention, one end of the beam 300 is fixedly connected to the lower part of the first column 100 by bolts, and the other end of the beam 300 is fixedly connected to the lower part of the second column 200 by bolts. The cross section of the beam 300 is in an "I" shape, and the beam 300 is used to strengthen the support of the first column 100 and the second column 200.

[0056] like Figure 1 As shown, in some specific embodiments of the present invention, the lower ends of the first column 100 and the second column 200 are fixedly connected to the upper end of the support plate 400 by welding.

[0057] like Figure 1 As shown, in some specific embodiments of the present invention, the upper end of the column foot 500 passes through the support plate 400 and is threadedly connected to the nut. In this embodiment, after the column foot 500 is buried in the foundation, the lower end surface of the support plate 400 abuts against the foundation. In this embodiment, four column feet 500 are evenly arranged on each support plate 400.

[0058] like Figure 1 As shown, in some specific embodiments of the present invention, a first flange 110 is provided at the upper end of the first column 100, a second flange 210 is provided at the upper end of the second column 200, a third flange 610 matching the shape of the first flange 110 is provided at the head end of the arched beam 600, and a fourth flange 620 matching the shape of the second flange 210 is provided at the end thereof; the first flange 110 and the third flange 610 as well as the second flange 210 and the fourth flange 620 are fixedly connected by bolts, that is, the first column 100 and the arched beam 600, and the second column 200 and the arched beam 600 are fixed by bolts.

[0059] In some specific embodiments of the present invention, the first flange 110 and the third flange 610 , as well as the second flange 210 and the fourth flange 620 , may be fixedly connected by welding.

[0060] like Figure 1 As shown, in some specific embodiments of the present invention, a first rubber pad (not shown in the figure) matching the shape of the first flange 110 is arranged between the first flange 110 and the third flange 610; a second rubber pad (not shown in the figure) matching the shape of the second flange 210 is arranged between the second flange 210 and the fourth flange 620; the first rubber pad and the second rubber pad are used for waterproofing.

[0061] like Figure 1 As shown, in some specific embodiments of the present invention, an exhaust pipe 700 for exhaust is provided on the arched beam 600. When pouring concrete, the exhaust pipe 700 is used to exhaust the gas in the concrete to ensure that the concrete is poured fully. After pouring, the exhaust pipe 700 is immersed in the concrete.

[0062] like Figure 1 As shown, in some specific embodiments of the present invention, the outer wall of the arched beam 600 has a first curved plate 630 extending axially thereof, and a mounting block 800 is connected to the first curved plate 630 by bolts, and the mounting block 800 is provided with a mounting hole for mounting the exhaust pipe 700 (not shown in the figure).

[0063] Furthermore, a mounting groove is provided on one side of the mounting block 800 facing the first curved plate 630, and the first curved plate 630 is inserted into the mounting groove and fixedly connected to the mounting block 800 by bolts. In this embodiment, after the first curved plate 630 is inserted into the mounting groove, the bolt passes through a side wall of the mounting groove from above and abuts against the first curved plate 630, so as to fix the mounting block 800 on the first curved plate 630. In other embodiments, after the first curved plate 630 is inserted into the mounting groove, the bolt passes through both side walls of the mounting groove and the first curved plate 630 and is connected to the nut at the same time, so as to realize the fixed connection between the first curved plate 630 and the mounting block 800.

[0064] like Figure 1 As shown, in some specific embodiments of the present invention, the outer wall of the arched beam 600 has a first arc plate 630 symmetrically extending along both sides of its axial direction, and the inner wall of the arched beam 600 has a second arc plate 640 symmetrically extending along both sides of its axial direction, so that the cross-section of the arched beam 600 is in an "I" shape to ensure the balance of the arched beam 600.

[0065] like Figure 1 As shown, in some specific embodiments of the present invention, the arched beam 600 is evenly provided with flow holes 650 for facilitating the flow of concrete, and the number of the flow holes 650 can be adjusted according to the arch length of the arched beam 600 .

[0066] like Figure 1 As shown, in some specific embodiments of the present invention, the inner wall and the outer wall of the first column 100 are symmetrically extended with first vertical plates 120 on both sides of the axial direction of the arched beam 600, so that the cross section of the first column 100 is in an "I" shape to ensure the balance of the first column 100. In this embodiment, the inner wall of the first column 100 refers to the side opposite to the first column 100 and the second column 200, and the outer wall of the first column 100 refers to the side opposite to the first column 100 and the second column 200.

[0067] like Figure 1 As shown, in some specific embodiments of the present invention, the first column 100 is evenly provided with flow holes 650 for facilitating the flow of concrete, and the number of the flow holes 650 can be adjusted according to the height of the first column 100 .

[0068] like Figure 1 As shown, in some specific embodiments of the present invention, the inner wall and the outer wall of the second column 200 are symmetrically extended with second vertical plates 220 on both sides of the axial direction of the arched beam 600, so that the cross section of the second column 200 is in an "I" shape to ensure the balance of the second column 200. In this embodiment, the inner wall of the second column 200 refers to the side of the second column 200 opposite to the first column 100, and the outer wall of the second column 200 refers to the side of the second column 200 opposite to the first column 100.

[0069] like Figure 1 As shown, in some specific embodiments of the present invention, the second column 200 is evenly provided with flow holes 650 for facilitating the flow of concrete, and the number of the flow holes 650 can be adjusted according to the height of the second column 200 .

[0070] like Figure 2 As shown, a new type of steel frame structure wall protection system for a tunnel according to an embodiment of the second aspect of the present invention comprises a supporting steel plate 900 and a plurality of wall protection structures according to any embodiment of the first aspect of the present invention. The supporting steel plate 900 is arranged between every two wall protection structures, and the two ends of the supporting steel plate 900 along its width direction are tightly connected to the wall protection structures respectively.

[0071] Further, the inner side surface of the support steel plate 900 is connected in sequence with the first vertical plate 120 of the inner wall of the first column 100, the second curved plate 640 of the inner wall of the arched beam 600, and the second vertical plate 220 of the inner wall of the second column 200, so that the support steel plate 900 is arranged along the shape of the protective wall structure to tightly connect the two protective wall structures. The first vertical plate 120, the second curved plate 640, and the second vertical plate 220 are in contact with the inner side surface of the support steel plate 900 at the same time to provide support for the support steel plate 900. When pouring concrete, the concrete is directly poured on the outer side surface of the support steel plate 900. In this embodiment, the outer side surface of the support steel plate 900 refers to the side of the support steel plate 900 facing the tunnel, and the inner side surface of the support steel plate 900 refers to the side of the support steel plate 900 facing away from the tunnel.

[0072] Furthermore, sealant is applied at the joints between the support steel plate 900 and the first vertical plate 120, the second curved plate 640 and the second vertical plate 220 to prevent concrete from penetrating into the gaps between the support steel plate 900 and the first vertical plate 120, the second curved plate 640 and the second vertical plate 220 during the pouring process.

[0073] Furthermore, a plurality of reinforcing ribs 910 are evenly distributed on the supporting steel plate 900 , and the reinforcing ribs 910 and the supporting steel plate 900 are integrally formed.

[0074] Furthermore, a plurality of fixing pins (not shown) are provided on opposite sides of each of the two wall protection structures, and the fixing pins are engaged with the reinforcing ribs 910 to fix the supporting steel plate 900. In this embodiment, the number of the fixing pins on each wall protection structure is the same as the number of the reinforcing ribs 910.

[0075] Furthermore, a plurality of fixing pins are disposed on the first column 100 , the second column 200 and the arched beam 600 .

[0076] like Figure 2As shown, in some specific embodiments of the present invention, a plurality of reinforcing ribs 920 are provided between every two wall protection structures. The plurality of reinforcing ribs 920 are arranged along the shape of the wall protection structure. Mounting plates 930 are welded to both ends of the reinforcing ribs 920. The mounting plates 930 are connected to the wall protection structure by bolts for easy disassembly.

[0077] Furthermore, the mounting plate 930 is connected to the first column 100 , the second column 200 and the arched beam 600 by bolts.

[0078] A new type of tunnel steel frame wall protection system in the above technical solution is adopted, and two wall protection structures are connected together by supporting steel plates 900. It is easy to assemble and disassemble. By controlling the quality of supporting steel plates 900 and wall protection structures, the overall quality of the wall protection system can be effectively controlled to reduce the difficulty of construction.

[0079] According to the third aspect of the embodiment of the present invention, a construction method for a new type of steel frame structure wall protection system for a tunnel is applied to a wall protection system, which includes a supporting steel plate and multiple wall protection structures; the wall protection structure includes a first column, a second column, a cross beam, an arched beam, a support plate and a column base; a first flange is provided at one end of the first column, a second flange is provided at one end of the second column, a third flange matching the shape of the first flange is provided at the head end of the arched beam, a fourth flange matching the shape of the second flange is provided at the end of the arched beam, a first rubber pad is provided between the first flange and the third flange, and a second rubber pad is provided between the second flange and the fourth flange; an exhaust pipe is provided on the arched beam; the support plate and the column base are connected by bolts.

[0080] The construction method comprises the following steps:

[0081] According to the length of the beam, column feet are buried in the foundation at both ends along the length direction of the beam, so that the lower end surface of the support plate abuts against the surface of the foundation;

[0082] Vertically hoist the first column, and weld one end of the first column away from the first flange to the upper end surface of the support plate;

[0083] The second column is hoisted vertically, and the end of the second column away from the second flange is welded to the upper end surface of the support plate;

[0084] Welding the two ends of the crossbeam along the length direction to the lower part of the inner wall of the first column and the lower part of the inner wall of the second column respectively;

[0085] placing a first rubber pad on the first flange and placing a second rubber pad on the second flange;

[0086] Install the exhaust pipe on the arched beam through the mounting block;

[0087] Hoist the arched beam to the upper ends of the first flange and the second flange, so that the third flange abuts against the first flange, and the fourth flange abuts against the second flange; the first flange and the third flange cooperate to press the first rubber pad, and the second flange and the fourth flange cooperate to press the second rubber pad; the first flange and the third flange, and the second flange and the fourth flange are connected by bolts;

[0088] After one retaining wall structure is installed, the next retaining wall structure is installed. The distance between every two retaining wall structures matches the width of the supporting steel plate.

[0089] The supporting steel plate is pre-formed with a plurality of reinforcing ribs through sheet metal hems, and the plurality of reinforcing ribs are arranged in parallel along the length direction of the supporting steel plate;

[0090] Lay the supporting steel plate between the two retaining wall structures, and according to the positions of the reinforcing ribs on the supporting steel plate, set a plurality of fixing pins on opposite sides of the two retaining wall structures, and clamp the fixing pins on the two retaining wall structures with the reinforcing ribs to realize the connection between the supporting steel plate and the two retaining wall structures;

[0091] Apply sealant to the joints between the supporting steel plate and the two retaining wall structures;

[0092] Concrete is poured along the outer side of the supporting steel plate.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0094] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A construction method for a new type of steel frame structure wall protection system for a tunnel, applied to the wall protection system, the system includes a supporting steel plate and a plurality of wall protection structures; the wall protection structure includes a first column, a second column, a cross beam, an arched beam, a support plate and a column foot; a first flange is provided at one end of the first column, a second flange is provided at one end of the second column, a third flange matching the shape of the first flange is provided at the head end of the arched beam, a fourth flange matching the shape of the second flange is provided at the end of the arched beam, a first rubber pad is provided between the first flange and the third flange, and a second rubber pad is provided between the second flange and the fourth flange; an exhaust pipe is provided on the arched beam; the support plate and the column foot are connected by bolts; it is characterized in that The first column, the second column and the arched beam are all provided with flow holes for facilitating the flow of concrete, the first column has first vertical plates extending from both sides of the inner wall along the axial direction of the arched beam, the second column has second vertical plates extending from both sides of the inner wall along the axial direction of the arched beam, and the inner side wall of the arched beam has second arc plates extending from both sides along the axial direction; a plurality of the guard wall structures are arranged in parallel, and the supporting steel plate is arranged between every two of the guard wall structures; the supporting steel plates are respectively connected to the guard wall structures at both ends along the width direction, and the inner side surfaces of the supporting steel plates are sequentially connected to the first vertical plate, the second arc plate and the second vertical plate, wherein the flow holes of each of the guard wall structures are all through-set along the width direction of the supporting steel plates, and the construction method comprises the following steps: According to the length of the cross beam, the column foot is buried in the foundation at both ends along the length direction of the cross beam, so that the lower end surface of the support plate abuts against the surface of the foundation; Vertically hoist the first column, and weld one end of the first column away from the first flange to the upper end surface of the support plate; Vertically hoist the second column, and weld one end of the second column away from the second flange to the upper end surface of the support plate; Welding the two ends of the crossbeam along the length direction to the lower part of the inner wall of the first column and the lower part of the inner wall of the second column respectively; placing the first rubber pad on the first flange, and placing the second rubber pad on the second flange; Installing the exhaust pipe on the arched beam through a mounting block; The arched beam is hoisted to the upper ends of the first flange and the second flange, so that the third flange abuts against the first flange, and the fourth flange abuts against the second flange; the first flange and the third flange cooperate to press the first rubber pad, and the second flange and the fourth flange cooperate to press the second rubber pad; the first flange and the third flange, the second flange and the fourth flange are connected by bolts; After one of the wall protection structures is installed, the next wall protection structure is installed, and the distance between every two wall protection structures matches the width of the supporting steel plate; The supporting steel plate is pre-formed with a plurality of reinforcing ribs by means of sheet metal hemming, and the plurality of reinforcing ribs are arranged in parallel along the length direction of the supporting steel plate; Laying the supporting steel plate between the two wall protection structures, and providing a plurality of fixing pins on opposite sides of the two wall protection structures according to the positions of the reinforcing ribs on the supporting steel plate, and engaging the fixing pins on the two wall protection structures with the reinforcing ribs to realize the connection between the supporting steel plate and the two wall protection structures; Apply sealant at the connection between the supporting steel plate and the two wall protection structures; Concrete pouring is performed along the outer side surface of the supporting steel plate.

Images