A new type of single-side operation trolley for tunnel trench construction and its installation and construction method

Abstract

The application is a novel single-side operation trolley for tunnel trench construction and its installation construction method. The operation trolley comprises a portal system, a track system, a wall surface support system, a hydraulic system, a hydraulic connecting rod system, a connecting rod support frame system and a formwork system. The installation construction method comprises the following steps: S1, track system laying and installation; S2, portal system installation; S3, hydraulic system and hydraulic connecting rod system installation; S4, hydraulic connecting rod system and formwork system connection. The application is suitable for single-side cable trench and water trench construction of large-section three-lane and four-lane tunnels, adopts the combination mode of upper bearing type track beam and lower bearing type steel rail, and is suitable for the operation trolley for integral pouring of cable groove and water trench with large cross-section size and large top surface height difference.

Description

Technical Field

[0001] This invention relates to the technical field of tunnel trench construction equipment, and in particular to a novel single-sided work trolley for tunnel trench construction and its installation and construction method. Background Technology

[0002] With the increasing maturity of supporting facilities for mechanized tunnel construction in China, track-driven hydraulic water trench cable trough trolleys have become an indispensable piece of equipment in tunnel construction. With the help of the trolley equipment, workers can quickly install or dismantle trench templates, greatly improving the progress of trench construction.

[0003] In existing highway three / four-lane tunnel construction, the span between the two working faces is large, and the cost of formwork trolleys is high. Therefore, combined steel formwork is generally used when pouring water trenches and cable trenches. However, this method of operation is difficult to move, the formwork is inconvenient to position, and the construction quality is difficult to guarantee. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provides a novel single-sided working trolley for tunnel trench construction and its installation and construction method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel single-sided work trolley for tunnel trench construction includes a gantry system, a track system, a wall support system, a hydraulic system, a hydraulic linkage system, a linkage support frame system, and a formwork system.

[0007] The track system is supported on the left and right sides of the bottom of the gantry system. The wall support system is installed on the tunnel wall. The track system near the tunnel wall is installed on the wall support system. The hydraulic system and hydraulic linkage system are installed on the gantry system. The hydraulic system is connected to the hydraulic linkage system. The linkage support frame system and the formwork system are both connected to the hydraulic linkage system.

[0008] The gantry system includes a front frame and a rear frame, both of which are right-angled triangular structures composed of a trolley crossbeam, a trolley vertical beam, and a trolley diagonal beam. The front frame and the rear frame are connected by an upper crossbeam and a lower crossbeam, and two X-shaped crossbeams are fixed between the upper and lower crossbeams.

[0009] The track system includes a U-shaped track beam mounted on a wall support system and a ground track mounted on a concrete road surface. A first roller is rolled inside the U-shaped track beam, and a second roller is rolled on the ground track. The first roller is mounted at the bottom of the trolley crossbeam of the front frame and the rear frame, and the second roller is mounted at the bottom of the trolley vertical beam of the front frame and the rear frame. One of the second rollers is connected to a drive motor via a belt.

[0010] The wall support system includes an upper support steel plate and a lower support steel plate installed on the tunnel wall. A horizontal support is welded to the middle of the outer side of the upper support steel plate, and an inclined support is welded to the middle of the outer side of the lower support steel plate. The top of the inclined support is welded to the bottom of the horizontal support. A U-shaped track beam is erected on the horizontal support. A track limiting angle steel is welded to the upper surface of the horizontal support on the side of the U-shaped track beam facing away from the tunnel wall.

[0011] The upper and lower support steel plates are installed on the tunnel wall on both the front and rear sides by pre-embedded fixing components. The pre-embedded fixing components include a conical nut pre-embedded inside the tunnel wall. The smaller diameter end of the conical nut is tightened with an inner threaded rod, which is pre-embedded inside the tunnel wall. The larger diameter end of the conical nut is tightened with an outer threaded rod, which passes through the upper and lower support steel plates and is fixed by a mountain-shaped nut.

[0012] The hydraulic system includes a hydraulic pump mounted on the lower crossbeam, a hydraulic crossbar connected to the hydraulic pump, the hydraulic crossbar mounted on the lower crossbeam, and hydraulic uprights connected to the front and rear ends of the hydraulic crossbar. The two hydraulic uprights are respectively mounted on the front frame and the rear frame.

[0013] The hydraulic linkage system includes a linkage mounting bracket connected to the top of two hydraulic poles, and four first hydraulic linkages, two second hydraulic linkages, two third hydraulic linkages, and two fourth hydraulic linkages are mounted at the bottom of the linkage mounting bracket.

[0014] The template system includes cable trough template, cable trough side template, water ditch template, and water ditch side template. The top of the cable trough template is connected to the bottom of four first hydraulic links, the top of the cable trough side template is connected to two second hydraulic links, the top of the water ditch template is connected to the bottom of two third hydraulic links, and the water ditch side template is connected to the bottom of two fourth hydraulic links.

[0015] The linkage support system includes a first linkage support, a second linkage support, and a third linkage support. The first linkage support is installed between the first hydraulic linkage and the second hydraulic linkage. The second linkage support is installed between the side formwork of the cable trough and the lower crossbeam. The third linkage support is installed between the side formwork of the drainage ditch and the concrete pavement.

[0016] The specific steps for installing the new single-sided work trolley used in tunnel and trench construction are as follows:

[0017] S1. Track system laying and installation

[0018] Under-mounted rails: Based on the construction width, the center line for laying the ground rails is measured and marked on the ground. The rails are laid according to the center line, with each rail being 6m long and connected in the middle with clamps, for a total length of 24m. The rails are repeatedly rotated as the work surface moves.

[0019] Upper-bearing track beam: Conical nuts are pre-embedded during the pouring of tunnel wall lining. The upper and lower support steel plates are fixed with external threaded rods made of φ22 precision rolled threaded steel. The longitudinal spacing is set at 0.5m. The U-shaped track beam is erected on the horizontal support. Each U-shaped track beam is 3m long and the joints are connected with angle steel bolts. The total length is 24m. It is parallel to the ground track. The track limiting angle steel is arranged with 4*3 angle steel at intervals and welded to the horizontal support.

[0020] Power system: The walking system adopts one active and three passive modes. The drive motor is installed at the second roller, and emergency braking devices are installed at both the first and second rollers.

[0021] S2, Gantry System Installation

[0022] First install the upper and lower crossbeams, then install the trolley vertical beam, trolley horizontal beam, trolley diagonal beam, and connecting rod mounting bracket;

[0023] The upper crossbeam, trolley vertical beam, and trolley crossbeam are made of double-welded 20 I-beams, the lower crossbeam is made of double-welded 32 channel steel, the trolley inclined beam and connecting rod mounting frame are made of double-welded 14 I-beams, and all connection nodes are connected with steel plate bolts.

[0024] S3, Hydraulic System, Hydraulic Linkage System Installation

[0025] The hydraulic pump is mounted on the lower crossbeam and fixed with bolts. It is used for the hydraulic linkage system and connects the hydraulic linkage system to the linkage mounting bracket.

[0026] S4. Connection between hydraulic linkage system and template system

[0027] The cable trough template is made of steel plate, channel steel, and angle steel. It is a closed integrated structure. The top width is the same as the cable trough cover plate, the bottom width is 4cm smaller than the top width, and it tapers by 2cm on one side. It is inverted trapezoidal in shape, and the bottom corners on both sides are set with arc chamfers. The top of the cable trough template is connected to four first hydraulic connecting rods.

[0028] The side templates of the cable trough are made of steel plates and channel steel, and the top of the side templates of the cable trough are connected to the second hydraulic connecting rod.

[0029] The drainage ditch formwork is made of steel plate, channel steel, and angle steel. It is a closed, integrated structure. The top width is the same as the drainage ditch cover, the bottom width is 4cm smaller than the top width, and it tapers by 2cm on one side, forming an inverted trapezoidal shape. The bottom corners on both sides are chamfered. The top of the drainage ditch formwork is connected to two third hydraulic linkages.

[0030] The side formwork of the ditch is made of steel plate and channel steel, and the top of the side formwork of the ditch is connected to two fourth hydraulic linkages.

[0031] S5, Construction

[0032] This includes subbase construction, rebar tying, formwork positioning, concrete pouring, demolding and curing, and formwork movement for the lower section construction.

[0033] The beneficial effects of this invention are: This invention is applicable to the construction of single-side cable trenches and water ditches in large-section three-lane and four-lane tunnels. It adopts a combination of upper-bearing track beams and lower-bearing steel rails, and is a work trolley suitable for the overall casting of cable troughs and water ditches with large cross-sectional dimensions and top surface height differences. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the work trolley in the tunnel according to the present invention;

[0035] Figure 2 This is a right view of the work trolley in this invention;

[0036] Figure 3 This is a front view of the work trolley in this invention;

[0037] Figure 4 This is a schematic diagram of the wall support system in this invention;

[0038] Figure 5 This is a schematic diagram of the U-shaped track beam in this invention;

[0039] Figure 6 This is a schematic diagram of the upper support steel plate and the horizontal support in this invention;

[0040] Figure 7 This is a schematic diagram of the cable trough template in this invention;

[0041] Figure 8 This is a schematic diagram of the structure of the cable trough side template in this invention;

[0042] Figure 9 This is a schematic diagram of the structure of the drainage ditch template in this invention;

[0043] Figure 10 This is a schematic diagram of the structure of the water ditch side template in this invention;

[0044] In the diagram: 1-Gantry system; 2-Rail system; 3-Wall support system; 4-Hydraulic system; 5-Hydraulic linkage system; 6-Linkage support frame system; 7-Formwork system;

[0045] 101-Trolley crossbeam; 102-Trolley vertical beam; 103-Trolley diagonal beam; 104-X-shaped cross-fixed beam; 105-Front frame; 106-Rear frame; 107-Upper crossbeam; 108-Lower crossbeam;

[0046] 201-U-shaped track beam; 202-Ground track; 203-First roller; 204-Second roller; 205-Belt; 206-Drive motor;

[0047] 301 - Upper support steel plate; 302 - Lower support steel plate; 303 - Horizontal support; 304 - Inclined support; 305 - Track limiting angle steel; 306 - Conical nut; 307 - Internal threaded rod; 308 - External threaded rod; 309 - Mountain-shaped nut;

[0048] 401 - Hydraulic pump; 402 - Hydraulic crossbar; 403 - Hydraulic upright;

[0049] 501 - First hydraulic link; 502 - Second hydraulic link; 503 - Third hydraulic link; 504 - Fourth hydraulic link; 505 - Link mounting bracket;

[0050] 601 - First link support frame; 602 - Second link support frame; 603 - Third link support frame;

[0051] 701-Cable trough template; 702-Cable trough side template; 703-Drainage ditch template; 704-Drainage ditch side template;

[0052] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0053] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0054] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0057] like Figures 1 to 4 As shown, a new type of single-sided working trolley for tunnel trench construction includes a gantry system 1, a track system 2, a wall support system 3, a hydraulic system 4, a hydraulic linkage system 5, a linkage support frame system 6, and a formwork system 7.

[0058] The track system 2 is supported on the left and right sides of the bottom of the gantry system 1. The wall support system 3 is installed on the tunnel wall. The track system 2 near the tunnel wall is installed on the wall support system 3. The hydraulic system 4 and the hydraulic linkage system 5 are installed on the gantry system 1. The hydraulic system 4 is connected to the hydraulic linkage system 5. The linkage support frame system 6 and the template system 7 are both connected to the hydraulic linkage system 5.

[0059] The gantry system 1 includes a front frame 105 and a rear frame 106 arranged at the front and rear. Both the front frame 105 and the rear frame 106 are right-angled triangular structures composed of a trolley crossbeam 101, a trolley vertical beam 102, and a trolley diagonal beam 103. The front frame 105 and the rear frame 106 are connected by an upper crossbeam 107 and a lower crossbeam 108. Two X-shaped cross beams 104 are fixed between the upper crossbeam 107 and the lower crossbeam 108.

[0060] The track system 2 includes a U-shaped track beam 201 (48kg / m) installed on the wall support system 3 and a ground track 202 (43kg / m) installed on the concrete road surface. A first roller 203 is rolled inside the U-shaped track beam 201, and a second roller 204 is rolled on the ground track 202. The first roller 203 is installed at the bottom of the trolley crossbeam 101 of the front frame 105 and the rear frame 106, and the second roller 204 is installed at the bottom of the trolley vertical beam 102 of the front frame 105 and the rear frame 106. One of the second rollers 204 is connected to a drive motor 206 via a belt 205.

[0061] The wall support system 3 includes an upper support steel plate 301 and a lower support steel plate 302 installed on the tunnel wall. A horizontal support 303 is welded to the middle of the outer side of the upper support steel plate 301, and an inclined support 304 is welded to the middle of the outer side of the lower support steel plate 302. The top of the inclined support 304 is welded to the bottom of the horizontal support 303. A U-shaped track beam 201 is erected on the horizontal support 303. A track limiting angle steel 305 is welded to the upper surface of the horizontal support 303 on the side of the U-shaped track beam 201 facing away from the tunnel wall.

[0062] The upper support steel plate 301 and the lower support steel plate 302 are installed on the tunnel wall on both the front and rear sides by pre-embedded fixing components. The pre-embedded fixing components include a conical nut 306 pre-embedded inside the tunnel wall. The smaller diameter end of the conical nut 306 is screwed with an inner threaded rod 307, which is pre-embedded inside the tunnel wall. The larger diameter end of the conical nut 306 is screwed with an outer threaded rod 308, which passes through the upper support steel plate 301 and the lower support steel plate 302 and is fixed by a mountain-shaped nut 309.

[0063] The hydraulic system 4 includes a hydraulic pump 401 mounted on the lower crossbeam 108. The hydraulic pump 401 is connected to a hydraulic crossbar 402, which is mounted on the lower crossbeam 108. Hydraulic uprights 403 are connected to the front and rear ends of the hydraulic crossbar 402. The two hydraulic uprights 403 are respectively mounted on the front frame 105 and the rear frame 106.

[0064] The hydraulic linkage system 5 includes a linkage mounting bracket 505 connected to the top of the two hydraulic uprights 403. Four first hydraulic linkages 501, two second hydraulic linkages 502, two third hydraulic linkages 503, and two fourth hydraulic linkages 504 are mounted on the bottom of the linkage mounting bracket 505. The hydraulic linkage system 5 controls the installation and disassembly of the template system 7 via the hydraulic system 4.

[0065] The template system 7 includes a cable trough template 701, a cable trough side template 702, a drainage ditch template 703, and a drainage ditch side template 704. The top of the cable trough template 701 is connected to the bottom of four first hydraulic connecting rods 501. The top of the cable trough side template 702 is connected to two second hydraulic connecting rods 502. The top of the drainage ditch template 703 is connected to the bottom of two third hydraulic connecting rods 503. The drainage ditch side template 704 is connected to the bottom of two fourth hydraulic connecting rods 504.

[0066] After the hydraulic linkage system 5 completes the installation of the template system 7, a linkage support frame system 6 needs to be manually installed between the linkage baffle and the vehicle frame to stably support the template system 7.

[0067] The linkage support system 6 includes a first linkage support 601, a second linkage support 602, and a third linkage support 603. The first linkage support 601 is installed between the first hydraulic linkage 501 and the second hydraulic linkage 502. The second linkage support 602 is installed between the side formwork 702 of the cable trough and the lower crossbeam 108. The third linkage support 603 is installed between the side formwork 704 of the drainage ditch and the concrete pavement. This ensures the stability of the formwork system 7 during concrete pouring, guaranteeing that the dimensions of the formed cable trough meet the standards. After the concrete has cured to its full strength, the formwork is removed. Before removal, the manually installed linkage support system 6 must be disengaged, and then the hydraulic linkage system 5 is retracted. Once the formwork removal is complete and the formwork system 7 is separated from the concrete, the trolley is moved to the next section to repeat the extension of the hydraulic linkage system 5, thus completing the fabrication of the next section of the drainage ditch cable trough.

[0068] The specific steps for installing the new single-sided work trolley used in tunnel and trench construction are as follows:

[0069] S1, Track System 2 Laying and Installation

[0070] Under-mounted rails: Based on the construction width, the center line for laying the ground rail 202 is measured and marked on the ground. The rails are laid according to the center line, each rail is 6m long and connected in the middle with clamps, with a total length of 24m. The rails are repeatedly rotated as the work surface moves.

[0071] Upper-bearing track beam: Conical nuts 306 are pre-embedded during the pouring of tunnel wall lining. The upper support steel plate 301 and the lower support steel plate 302 are fixed by external threaded rods 308 made of φ22 precision rolled threaded steel. The longitudinal spacing is set at 0.5m. The U-shaped track beam 201 is erected on the horizontal support 303. Each U-shaped track beam 201 is 3m long and the joint is connected by angle steel bolts. The total length is 24m. It is parallel to the ground track 202. The track limiting angle steel 305 is arranged with 4*3 angle steel at intervals and welded to the horizontal support 303.

[0072] Power system: The walking system adopts one active and three passive modes. The drive motor 206 is installed at the second roller 204, and emergency braking devices are installed at both the first roller 203 and the second roller 204.

[0073] S2, Gantry System 1 Installation

[0074] First, install the upper crossbeam 107 and the lower crossbeam 108, then install the trolley vertical beam 102, the trolley crossbeam 101, the trolley inclined beam 103 and the connecting rod mounting bracket 505;

[0075] The upper crossbeam 107, the trolley vertical beam 102, and the trolley crossbeam 101 are made of double-welded 20 I-beams, the lower crossbeam 108 is made of double-welded 32 channel steel, and the trolley inclined beam 103 and the connecting rod mounting frame 505 are made of double-welded 14 I-beams. All connection nodes are connected by steel plate bolts.

[0076] S3, Hydraulic System 4, Hydraulic Linkage System 5 Installation

[0077] Hydraulic pump 401 is mounted on lower crossbeam 108 and fixed with bolts. It is used for hydraulic linkage system 5 and connects hydraulic linkage system 5 to linkage mounting bracket 505.

[0078] S4, Hydraulic linkage system 5 connects to template system 7

[0079] The cable trough template 701 is made of steel plate, channel steel, and angle steel. It is a closed integrated structure. The upper width is the same as the cable trough cover plate, the bottom width is 4cm smaller than the upper width, and it is tapered by 2cm on one side. It is inverted trapezoidal in shape, and the bottom corners on both sides are set with arc chamfers. The top of the cable trough template 701 is connected to four first hydraulic connecting rods 501.

[0080] The side template 702 of the cable trough is made of steel plate and channel steel, and the top of the side template 702 of the cable trough is connected to the second hydraulic connecting rod 502.

[0081] The drainage ditch template 703 is made of steel plate, channel steel, and angle steel. It is a closed, integrated structure. The top width is the same as the drainage ditch cover, the bottom width is 4cm smaller than the top width, and it tapers by 2cm on one side. It has an inverted trapezoidal shape, and the bottom corners on both sides are set with rounded chamfers. The top of the drainage ditch template 703 is connected to two third hydraulic connecting rods 503.

[0082] The side formwork 704 of the ditch is made of steel plate and channel steel, and the top of the side formwork 704 of the ditch is connected to two fourth hydraulic connecting rods 504.

[0083] S5, Construction

[0084] The process includes subbase construction, rebar tying, formwork positioning, concrete pouring, demolding and curing, and formwork movement for the lower section. The cable trench is constructed using an integral pouring process with a length of 9m, and can be constructed continuously.

[0085] This invention is applicable to the construction of single-sided cable trenches and water ditches in large-section three-lane and four-lane tunnels. It adopts a combination of upper-bearing track beams and lower-bearing steel rails and is a work trolley suitable for the integral pouring of cable troughs and water ditches with large cross-sectional dimensions and top surface height differences.

[0086] This invention is a template fixing device for easy tunnel construction. It addresses the issue of tunnel height having a relatively small impact, requiring only a single-sided installation trolley, resulting in a smaller size and material savings compared to existing technologies. Furthermore, it features a hydraulic linkage system 5, making it easier to install and disassemble tunnel templates, thus meeting the requirements of single-sided construction in some tunnels.

[0087] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A single-sided working trolley for tunnel trench construction, characterized in that, It includes a gantry system (1), a track system (2), a wall support system (3), a hydraulic system (4), a hydraulic linkage system (5), a linkage support frame system (6), and a formwork system (7). The track system (2) is supported on the left and right sides of the bottom of the gantry system (1), the wall support system (3) is installed on the tunnel wall, the track system (2) near the tunnel wall is installed on the wall support system (3), the hydraulic system (4) and the hydraulic linkage system (5) are installed on the gantry system (1), the hydraulic system (4) is connected to the hydraulic linkage system (5), and the linkage support frame system (6) and the template system (7) are both connected to the hydraulic linkage system (5). The track system (2) includes a U-shaped track beam (201) installed on the wall support system (3) and a ground track (202) installed on the concrete road surface; The wall support system (3) includes an upper support steel plate (301) and a lower support steel plate (302) installed on the tunnel wall. A horizontal support (303) is welded to the middle of the outer side of the upper support steel plate (301), and an inclined support (304) is welded to the middle of the outer side of the lower support steel plate (302). The top of the inclined support (304) is welded to the bottom of the horizontal support (303). A U-shaped track beam (201) is erected on the horizontal support (303). A track limiting angle steel (305) is welded to the upper surface of the horizontal support (303) on the side of the U-shaped track beam (201) facing away from the tunnel wall. The upper support steel plate (301) and the lower support steel plate (302) are installed on the tunnel wall on both the front and rear sides by pre-embedded fixing components. The pre-embedded fixing components include a conical nut (306) pre-embedded inside the tunnel wall. The smaller diameter end of the conical nut (306) is screwed with an inner threaded rod (307), which is pre-embedded inside the tunnel wall. The larger diameter end of the conical nut (306) is screwed with an outer threaded rod (308), which passes through the upper support steel plate (301) and the lower support steel plate (302) and is fixed by a mountain-shaped nut (309).

2. The single-sided working trolley for tunnel trench construction according to claim 1, characterized in that, The gantry system (1) includes a front frame (105) and a rear frame (106) set at the front and rear. Both the front frame (105) and the rear frame (106) are right-angled triangular structures composed of a trolley crossbeam (101), a trolley vertical beam (102), and a trolley diagonal beam (103). The front frame (105) and the rear frame (106) are connected by an upper crossbeam (107) and a lower crossbeam (108). Two X-shaped cross beams (104) are fixed between the upper crossbeam (107) and the lower crossbeam (108).

3. The single-sided working trolley for tunnel trench construction according to claim 2, characterized in that, A first roller (203) is rolled inside the U-shaped track beam (201), and a second roller (204) is rolled on the ground track (202). The first roller (203) is installed at the bottom of the trolley crossbeam (101) of the front frame (105) and the rear frame (106), and the second roller (204) is installed at the bottom of the trolley vertical beam (102) of the front frame (105) and the rear frame (106). One of the second rollers (204) is connected to a drive motor (206) via a belt (205).

4. A single-sided working trolley for tunnel trench construction according to claim 3, characterized in that, The hydraulic system (4) includes a hydraulic pump (401) installed on the lower crossbeam (108), the hydraulic pump (401) is connected to a hydraulic crossbar (402), the hydraulic crossbar (402) is installed on the lower crossbeam (108), and the front and rear ends of the hydraulic crossbar (402) are connected to hydraulic uprights (403), and the two hydraulic uprights (403) are respectively installed at the front frame (105) and the rear frame (106).

5. A single-sided working trolley for tunnel trench construction according to claim 4, characterized in that, The hydraulic linkage system (5) includes a linkage mounting bracket (505) connected to the top of two hydraulic poles (403), and four first hydraulic linkages (501), two second hydraulic linkages (502), two third hydraulic linkages (503) and two fourth hydraulic linkages (504) are mounted on the bottom of the linkage mounting bracket (505).

6. A single-sided working trolley for tunnel trench construction according to claim 5, characterized in that, The template system (7) includes a cable trough template (701), a cable trough side template (702), a drainage ditch template (703), and a drainage ditch side template (704). The top of the cable trough template (701) is connected to the bottom of four first hydraulic connecting rods (501), the top of the cable trough side template (702) is connected to two second hydraulic connecting rods (502), the top of the drainage ditch template (703) is connected to the bottom of two third hydraulic connecting rods (503), and the bottom of the drainage ditch side template (704) is connected to the bottom of two fourth hydraulic connecting rods (504).

7. A single-sided work platform for tunnel trench construction according to claim 6, characterized in that, The linkage support system (6) includes a first linkage support (601), a second linkage support (602) and a third linkage support (603). The first linkage support (601) is installed between the first hydraulic linkage (501) and the second hydraulic linkage (502). The second linkage support (602) is installed between the side template (702) of the cable trough and the lower crossbeam (108). The third linkage support (603) is installed between the side template (704) of the ditch and the concrete pavement.

8. The installation and construction method of a single-sided working trolley for tunnel trench construction according to claim 7, characterized in that, The specific steps are as follows: S1, Track System (2) Laying and Installation Under-supported track: Based on the construction width, the center line for laying the ground track (202) is measured and marked on the ground. The track is laid according to the center line, with each rail being 6m long and connected in the middle with a clamp, for a total length of 24m. The track is repeatedly rotated as the work surface moves. Upper-bearing track beam: Conical nuts (306) are pre-embedded during the pouring of tunnel wall lining. The upper support steel plate (301) and the lower support steel plate (302) are fixed by external threaded rods (308) made of φ22 precision rolled threaded steel. The longitudinal spacing is set at 0.5m. The U-shaped track beam (201) is erected on the horizontal support (303). Each U-shaped track beam (201) is 3m long. The joints are connected by angle steel bolts. The total length is 24m. It is parallel to the ground track (202). The track limiting angle steel (305) is arranged with 4*3 angle steel at intervals and welded to the horizontal support (303). Power system: The walking system adopts one active and three passive modes. The drive motor (206) is installed at the second roller (204), and emergency braking devices are installed at both the first roller (203) and the second roller (204). S2, Gantry System (1) Installation First install the upper crossbeam (107) and the lower crossbeam (108), then install the trolley vertical beam (102), the trolley crossbeam (101), the trolley inclined beam (103) and the connecting rod mounting bracket (505). The upper crossbeam (107), the trolley vertical beam (102), and the trolley crossbeam (101) are made of 20 I-beams welded together, the lower crossbeam (108) is made of 32 channel steel welded together, the trolley inclined beam (103) and the connecting rod mounting frame (505) are made of 14 I-beams welded together, and all connection nodes are made of steel plate bolts. S3, Hydraulic System (4), Hydraulic Linkage System (5) Installation The hydraulic pump (401) is mounted on the lower crossbeam (108) and bolted, and is used for the hydraulic linkage system (5) to connect the hydraulic linkage system (5) to the linkage mounting bracket (505); S4. Connection between the hydraulic linkage system (5) and the template system (7) The cable trough template (701) is made of steel plate, channel steel, and angle steel. It is a closed integrated structure. The upper width is consistent with the cable trough cover plate, the bottom width is 4cm smaller than the upper width, and the single side is 2cm smaller. It is inverted trapezoidal in shape, and the bottom corners on both sides are set with arc chamfers. The top of the cable trough template (701) is connected to four first hydraulic connecting rods (501). The side template (702) of the cable trough is made of steel plate and channel steel, and the top of the side template (702) of the cable trough is connected to the second hydraulic connecting rod (502); The drainage ditch template (703) is made of steel plate, channel steel, and angle steel. It is a closed integrated structure. The top width is the same as the drainage ditch cover plate, the bottom width is 4cm smaller than the top width, and the bottom width is 2cm smaller on one side. It is an inverted trapezoidal shape with arc chamfers on both bottom corners. The top of the drainage ditch template (703) is connected to two third hydraulic connecting rods (503). The side formwork of the ditch (704) is made of steel plate and channel steel, and the top of the side formwork of the ditch (704) is connected to two fourth hydraulic connecting rods (504); S5, Construction This includes subbase construction, rebar tying, formwork positioning, concrete pouring, demolding and curing, and formwork movement for the lower section construction.

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