One-time forming equipment for tunnel secondary lining and cable trench side wall and construction method thereof

Abstract

The present invention belongs to the technical field of tunnel construction, and particularly relates to a tunnel secondary lining and cable trench side wall one-time forming device and its construction method; it includes a vehicle platform, a moving support and an arc-shaped template; the moving support is slidably arranged on the vehicle platform, and a number of vertical hydraulic cylinders are rotatably connected below the arc-shaped template, and the bottoms of the number of vertical hydraulic cylinders are slidably connected to the top of the vehicle platform. A number of first adjusting hydraulic cylinders and second adjusting hydraulic cylinders are arranged on the vehicle platform. The first adjusting hydraulic cylinder is connected to the moving support, and the second adjusting hydraulic cylinder is connected to the bottom of the vertical hydraulic cylinder. One side oil cavities of the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder are communicated, and the other side oil cavities of the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder are respectively communicated to the oil supply device. The moving direction of the moving support is opposite to the moving direction of the bottom of the vertical hydraulic cylinder for balancing the force on the bottom of the vehicle platform; it can keep the vehicle platform balanced and the force balanced when adjusting the position of the arc-shaped template.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a one-time forming device for a tunnel secondary lining and a cable trench side wall and a construction method thereof. Background Art

[0002] Generally, before the secondary lining construction, the tunnel invert construction will be carried out first, so that the bottom side of the secondary lining construction trolley can abut against the side of the invert to avoid overflow during concrete pouring. When the secondary lining and the cable trench side wall are constructed at the same time, the bottom of the secondary lining construction trolley needs to abut directly against the bottom of the tunnel.

[0003] For example, the tunnel arch ring and cable trench side wall integrated secondary lining steel formwork trolley of Chinese patent CN109653771B includes a gantry system, a connection system, and a panel system. The gantry system is composed of a crossbeam, a leg, a diagonal brace, and a column; the connection system is composed of an arch shoulder connecting screw rod, a cross brace screw rod, a horizontal oil cylinder, an arch foot connecting screw rod, a diagonal brace screw rod, a lifting screw rod, and an outer support screw rod; and the panel system is composed of an arc panel and a cable trench side wall panel. The tunnel arch ring and cable trench side wall integrated secondary lining steel formwork trolley of the prior art effectively solves the problem of the tunnel arch ring secondary lining concrete and the cable trench side wall concrete being constructed in two processes, reduces the process of treating the interface between the new and old concrete, saves manpower and template resource investment, ensures that the tunnel arch ring and the cable trench side wall concrete on both sides are cast in one go, the quality of the cable trench side wall concrete casting can be controlled, and the progress of the project construction is accelerated.

[0004] However, in the actual construction process, since it is necessary to ensure that the position of the trolley is in the center of the construction position, although the track is laid in advance, the accuracy of the trolley when sliding to the construction position on the track cannot be guaranteed. Therefore, after the trolley moves to the construction position, it is necessary to repeatedly adjust the position. Although some trolleys are provided with a horizontal adjustment device for accurately adjusting the horizontal position of the trolley, after the adjustment, the template used for pouring is not on the central axis of the trolley, and the bottom of the trolley is generally supported only by the track. The offset of the center of gravity of the template may cause uneven force, and there is a probability that the trolley will be damaged. Based on this, a one-time forming equipment for tunnel secondary lining and cable trench side wall and a construction method thereof are proposed. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a one-time forming device for tunnel secondary lining and cable trench side wall and a construction method thereof.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The present invention provides a one-time forming device for a tunnel secondary lining and a cable trench side wall, comprising a vehicle platform, a movable bracket and an arc-shaped template; the movable bracket is slidably arranged on the vehicle platform, the arc-shaped template is connected to the movable bracket, a plurality of vertical hydraulic cylinders are rotatably connected below the arc-shaped template, the bottoms of the plurality of vertical hydraulic cylinders are slidably connected to the top of the vehicle platform, a plurality of first adjusting hydraulic cylinders and second adjusting hydraulic cylinders are arranged on the vehicle platform, the first adjusting hydraulic cylinder is connected to the movable bracket, the second adjusting hydraulic cylinder is connected to the bottom of the vertical hydraulic cylinder, the oil chambers on one side of the same as the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder are connected, the oil chambers on the other sides of the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder are respectively connected to the oil supply device, the moving direction of the movable bracket is opposite to the moving direction of the bottom of the vertical hydraulic cylinder for balancing the force on the bottom of the vehicle platform.

[0008] Furthermore, it also includes an auxiliary hydraulic cylinder, both ends of which are connected to the movable bracket and the arc-shaped template respectively, and the auxiliary hydraulic cylinder is extended and retracted with the movement of the vertical hydraulic cylinder.

[0009] Furthermore, the arc-shaped template includes a top plate, two side plates and two bottom plates, the two side plates are symmetrically hinged to the two side edges of the top plate, and the two bottom plates are hinged to the side edges of the two side plates. The top plate, the two side plates and the two bottom plates form a continuous arc-shaped plate, the top plate is connected to the top of the platform through a vertical hydraulic cylinder, the side plate is connected to the middle side of the platform through a horizontal hydraulic cylinder, and the bottom plate is connected to the bottom side of the platform through a tilting hydraulic cylinder, and a plurality of the horizontal hydraulic cylinders and the tilting hydraulic cylinders are extended and retracted with the movement of the movable bracket.

[0010] Furthermore, a plurality of lifting hydraulic cylinders are arranged at the bottom of the platform, and rollers are arranged at the bottom of the plurality of lifting hydraulic cylinders, and the rollers are arranged to roll on the ground track.

[0011] Furthermore, a plurality of first anchor rods are provided on the inner side surfaces of both sides of the vehicle platform, and the plurality of first anchor rods are used to anchor the vehicle platform to the ground.

[0012] Furthermore, a second anchor rod is provided on the base plate, and the second anchor rod is used to anchor the base plate to the ground. The first anchor rod, the second anchor rod, the base plate and the tilting hydraulic cylinder form a triangular support structure.

[0013] Furthermore, it also includes a moving frame, the bottoms of several vertical hydraulic cylinders are rotatably connected to the moving frame, several of the second adjusting hydraulic cylinders are connected to the moving frame, and the moving frame is slidably arranged on the platform.

[0014] A one-time forming construction method for a tunnel secondary lining and a cable trench side wall comprises the following steps:

[0015] S1: The platform moves to the construction site through the slide rail, and the first anchor rod at the bottom is fixed on the ground;

[0016] S2: The bottom lifting hydraulic cylinder rises until the top plate is 100-200mm away from the target position and then stops. The top vertical hydraulic cylinder continues to rise until one of the ends abuts against the end of the constructed second lining and then stops;

[0017] S3: After the top plate is installed in place, the horizontal hydraulic cylinder pushes the side plate to abut against the end of the constructed second lining and then stops;

[0018] S4: After the side plates are installed in place, the tilting hydraulic cylinder pushes the bottom plate to abut against the end of the constructed cable trench side wall and then stops, and the second anchor rod is connected to the ground.

[0019] Furthermore, in S2, after the lifting hydraulic cylinder is raised to a predetermined position, when the arc template is not in a centered position, the second adjusting hydraulic cylinder pushes the moving frame to move by adjusting the extension and contraction amount of the first adjusting hydraulic cylinder, thereby adjusting the tilt angle of the vertical hydraulic cylinder.

[0020] Furthermore, after the adjustment of the first adjusting hydraulic cylinder is completed, the platform is continuously raised by the lifting hydraulic cylinder until one side end of the top plate abuts against the end of the constructed second lining and then stops.

[0021] The beneficial effects of the present invention are:

[0022] (1) Through the opposite movements of the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder, after the movable bracket moves to one side, the bottom of the vertical hydraulic cylinder moves to the other side, and the top of the vertical hydraulic cylinder is rotatably connected, so the vertical hydraulic cylinder changes from the initial vertical state to the inclined state, and the inclined direction is opposite to the moving direction of the movable bracket. Therefore, the gravity received by the vertical hydraulic cylinder has a horizontal component force, which can correct the center of gravity offset caused by the displacement of the movable bracket, so that the center of gravity is adjusted to the center position of the platform, avoiding the uneven force on the tracks on both sides;

[0023] (2) When the arc template is not in the center position, after the platform moves to the predetermined position through the track, it is first adjusted to a certain height by the lifting hydraulic cylinder at the bottom, and then the horizontal position of the arc template is detected. When an offset occurs, the horizontal position of the arc template is adjusted by the first adjusting hydraulic cylinder, and the center of gravity is adjusted synchronously by the vertical hydraulic cylinder. When the arc template is adjusted to the center position, the height is adjusted for the second time by the lifting hydraulic cylinder at the bottom. The top plate of the arc template is abutted against the end of the second lining of the upper section, and then the side plates and the bottom plate on both sides are unfolded in turn to complete the installation of the arc template. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the left front three-dimensional structure of the present invention;

[0026] Figure 2 It is a front structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the first regulating hydraulic cylinder and the second regulating hydraulic cylinder of the present invention.

[0028] Example: 1. Track; 2. Bottom plate; 3. Side plate; 4. Top plate; 5. First anchor rod; 6. Mobile bracket; 7. Auxiliary hydraulic cylinder; 8. First adjusting hydraulic cylinder; 9. Second anchor rod; 10. Tilt hydraulic cylinder; 11. Horizontal hydraulic cylinder; 12. Vertical hydraulic cylinder; 13. Second adjusting hydraulic cylinder. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0030] like Figure 1-3As shown, a one-time forming device for the secondary lining and the side wall of a cable trench of the present invention comprises a vehicle platform, a movable bracket 6 and an arc-shaped template; the movable bracket 6 is slidably arranged on the vehicle platform, the arc-shaped template is connected to the movable bracket 6, a plurality of vertical hydraulic cylinders 12 are rotatably connected below the arc-shaped template, the bottom of the plurality of vertical hydraulic cylinders 12 are slidably connected to the top of the vehicle platform, a plurality of first adjusting hydraulic cylinders 8 and second adjusting hydraulic cylinders 13 are arranged on the vehicle platform, the first adjusting hydraulic cylinder 8 is connected to the movable bracket 6, the second adjusting hydraulic cylinder 13 is connected to the bottom of the vertical hydraulic cylinder 12, the first adjusting hydraulic cylinder 8 and the second adjusting hydraulic cylinder 13 have the same oil chamber on one side communicated, the first adjusting hydraulic cylinder 8 and the second adjusting hydraulic cylinder 13 have the same oil chamber on the other side communicated to the oil supply device respectively, the moving direction of the movable bracket 6 is opposite to the moving direction of the bottom of the vertical hydraulic cylinder 12, and is used to balance the force on the bottom of the vehicle platform;

[0031] In the actual construction process, it is necessary to ensure that the position of the platform is at the center of the construction position. Although the track 1 is laid in advance, the accuracy of the platform when sliding on the track 1 to the construction position cannot be guaranteed. Therefore, after the platform is moved to the construction position, it is necessary to repeatedly adjust the position. Although some platforms are equipped with a horizontal adjustment device for accurately adjusting the horizontal position of the platform, after the adjustment, the template used for pouring is not on the central axis of the platform. The bottom of the platform is generally supported only by the tracks 1 on both sides. The offset of the center of gravity of the template may cause uneven force, which may cause damage to the platform. The increase in weight after pouring concrete further increases the risk of damage to the platform.

[0032] Therefore, the movable bracket 6 above the platform is not connected to the vertical hydraulic cylinder 12. The movable bracket 6 is directly slidably arranged on the platform horizontally. The movable bracket 6 supports the top of the entire arc template. When the first adjusting hydraulic cylinder 8 is extended or retracted, the movable bracket 6 moves accordingly under the action of the first adjusting hydraulic cylinder 8, and the arc template is also adjusted horizontally accordingly; and since the first adjusting hydraulic cylinder 8 and the second adjusting hydraulic cylinder 13 are arranged in opposite directions and the cylinder bodies on one side are connected to each other, the extension and retraction directions of the telescopic structures are opposite, and the other end that is not connected is connected to the oil supply device, and since the two hydraulic cylinders are arranged in opposite directions, when the telescopic structure of the first adjusting hydraulic cylinder 8 extends to one side, the hydraulic oil in the first adjusting hydraulic cylinder 8 is pushed into the second adjusting hydraulic cylinder 13, so that the telescopic structure of the second adjusting hydraulic cylinder 13 extends in the opposite direction, and since the two hydraulic cylinders are arranged in opposite directions, the effect produced is that one extends and the other retracts, forming opposite movement directions. Through the opposite movements of the first adjusting hydraulic cylinder 8 and the second adjusting hydraulic cylinder 13, the mobile bracket 6 is moved to one side, and the bottom of the vertical hydraulic cylinder 12 moves to the other side, and the top of the vertical hydraulic cylinder 12 is rotatably connected, so the vertical hydraulic cylinder 12 is changed from an initial vertical state to an inclined state, and the inclined direction is opposite to the moving direction of the mobile bracket 6. Therefore, the gravity exerted on the vertical hydraulic cylinder 12 has a horizontal component force, and the horizontal component force will correct the center of gravity offset caused by the offset of the mobile bracket 6, so that the center of gravity is adjusted to the center position of the platform, avoiding uneven force on the tracks 1 on both sides.

[0033] Furthermore, it also includes an auxiliary hydraulic cylinder 7, both ends of which are connected to the movable bracket 6 and the arc-shaped template respectively, and the auxiliary hydraulic cylinder 7 is extended and retracted with the action of the vertical hydraulic cylinder 12;

[0034] Since the height distance between the mobile support 6 and the arc template will change when the vertical hydraulic cylinder 12 is actuated or the first adjusting hydraulic cylinder 8 and the second adjusting hydraulic cylinder 13 drive the mobile support 6 to move, the mobile support 6 and the arc template are connected by the auxiliary hydraulic cylinder 7, and the auxiliary hydraulic cylinder 7 is extended and retracted with the action of the vertical hydraulic cylinder 12. The specific extension and retraction amount of the auxiliary hydraulic cylinder 7 can be controlled by the control device in combination with the sensor.

[0035] Specifically, the arc-shaped template includes a top plate 4, two side plates 3 and two bottom plates 2. The two side plates 3 are symmetrically hinged to the two side edges of the top plate 4, and the two bottom plates 2 are hinged to the side edges of the two side plates 3. The top plate 4, the two side plates 3 and the two bottom plates 2 form a continuous arc plate. The top plate 4 is connected to the top of the platform through a vertical hydraulic cylinder 12, the side plates 3 are connected to the side of the middle part of the platform through a horizontal hydraulic cylinder 11, and the bottom plate 2 is connected to the side of the bottom of the platform through a tilting hydraulic cylinder 10. A plurality of horizontal hydraulic cylinders 11 and tilting hydraulic cylinders 10 are extended and retracted with the movement of the movable bracket 6.

[0036] After a section of tunnel is constructed, the arc formwork needs to be demoulded, and the construction can be carried out continuously at the same time, so as to avoid the arc formwork needing to be repeatedly disassembled and assembled at each construction position, the arc formwork can be expanded and retracted based on the axial direction. The arc formwork is divided into a top plate 4, two side plates 3 and two bottom plates 2, and the ends are hinged to each other. When moving to the next construction position after completing a section of construction, the side plates 3 on both sides need to be rotated and retracted, and the bottom plates 2 on both sides also rotate and retract, and the top plate 4 is lowered, and then starts to move until it moves to the next construction position, first the top plate 4 is abutted in place, and then the side plates 3 on both sides are expanded to the predetermined position, and finally the bottom plates 2 on both sides are expanded. The side plates 3 and the bottom plates 2 on both sides are connected by hydraulic cylinders and controlled to expand and retract.

[0037] In one embodiment, a plurality of lifting hydraulic cylinders are arranged at the bottom of the platform, and rollers are arranged at the bottom of the plurality of lifting hydraulic cylinders, and the rollers are rollingly arranged on the track 1 on the ground. The vertical hydraulic cylinder 12 on the top of the platform is used to assist in the adjustment of the center of gravity position, and to finely adjust the arc template in the vertical direction when the platform is in the center position and does not need to be adjusted, while the lifting hydraulic cylinder at the bottom is used for the overall height adjustment of the platform. After the arc template is adjusted in the horizontal position, if the vertical adjustment is continued through the vertical hydraulic cylinder 12, the arc template will move in the inclined direction, resulting in the arc template not being in the center position. Therefore, it cannot be adjusted through the vertical hydraulic cylinder 12, but needs to be lifted or lowered as a whole by the lifting hydraulic cylinder.

[0038] After the platform moves to the construction position, one end of the arc-shaped template needs to be abutted against the end part of the second lining that has been constructed, so the top of the other end of the arc-shaped template is suspended. In order to prevent the multiple hydraulic cylinders at different positions from being evenly stressed, which causes the platform and the arc-shaped template to be displaced after being adjusted to the predetermined position, it is necessary to fix the posture of the platform. Therefore, in one embodiment, a plurality of first anchor rods 5 are arranged on the inner side surfaces of both sides of the platform. The plurality of first anchor rods 5 are used to anchor the platform to the ground. The plurality of first anchor rods 5 are arranged along the axial direction of the bottom of the platform. Since there are two legs on both sides of the bottom of the platform, the plurality of first anchor rods 5 are arranged on the inner side parts of the two legs. After the platform moves to the predetermined position in the tunnel direction through the track 1, it is fixed to the ground by the first anchor rods 5, and the first anchor rods 5 are tightened and fixed. The first anchor rods 5 form a pulling force toward the ground on the platform, so as to prevent the platform and the arc-shaped template on the top from sliding on the track 1 due to different forces.

[0039] Further, in one embodiment, a second anchor rod 9 is provided on the bottom plate 2, and the second anchor rod 9 is used to anchor the bottom plate 2 to the ground, and the first anchor rod 5, the second anchor rod 9, the bottom plate 2 and the tilting hydraulic cylinder 10 form a stable triangular-like support structure;

[0040] During construction, the top plate 4, the side plate 3 and the bottom plate 2 need to be installed in place, and the bottom plate 2 is used for the construction of the side wall of the cable trench. Therefore, in order to prevent leakage, the bottom plate 2 of the bottom plate 2 is directly in contact with the ground, so the bottom plate 2 can also form a supporting force for the arc-shaped template. After the bottom plate 2 is installed in place, the pressure of the bottom plate 2 after grouting is relatively large. In order to prevent the displacement of the bottom plate 2, in addition to being supported by the tilting hydraulic cylinder 10, the bottom plate 2 is also fixed to the ground by the second anchor rod 9. Then, the platform legs, the first anchor rod 5, the bottom plate 2 and the second anchor rod 9 support each other and form a stable triangular structure, that is, the first anchor rod 5 fixes the platform legs to prevent the platform from moving, and the second anchor rod 9 fixes the bottom plate 2 to prevent the bottom plate 2 from moving. Then, the platform legs and the bottom plate 2 are connected by the tilting hydraulic cylinder 10 to fix them to each other to prevent loosening during the grouting process.

[0041] At the same time, since the vertical hydraulic cylinder 12 is at an inclined angle after the mobile bracket 6 moves horizontally, the concrete will form a horizontal thrust on the arc-shaped formwork after pouring the concrete, and the bottom of the platform is only in contact with the track 1 through rollers. In order to prevent the possible roll problem caused by gravity imbalance before the gravity adjustment on both sides is completed, the safety of the platform can be ensured by connecting the first anchor rod 5 and the second anchor rod 9 to the ground.

[0042] Since the vertical hydraulic cylinder 12 is in a tilted state after the horizontal position of the mobile bracket 6 is adjusted by the first adjusting hydraulic cylinder 8, if the offset distance of the mobile bracket 6 is the same as the tilt distance of the vertical hydraulic cylinder 12, the horizontal force component in the tilted state and the vertical force component in the vertical state may be small, so the adjustment amount of the platform center is insufficient. In order to ensure that the vertical hydraulic cylinder 12 can correct the problem of center of gravity offset when tilting, in one embodiment, the inner diameter of the cylinder body of the first adjusting hydraulic cylinder 8 is 1-3 times the inner diameter of the cylinder body of the second adjusting hydraulic cylinder 13;

[0043] When the cylinder diameter of the first adjusting hydraulic cylinder 8 is larger than the cylinder diameter of the second adjusting hydraulic cylinder 13, the smaller movement of the first adjusting hydraulic cylinder 8 will cause a larger movement of the second adjusting hydraulic cylinder 13, which can push the vertical hydraulic cylinder 12 to a larger tilt angle. The cylinder diameter ratio of the first adjusting hydraulic cylinder 8 and the second adjusting hydraulic cylinder 13 is determined according to the length of the vertical hydraulic cylinder 12. At the same time, since it is impossible to make the center of gravity on both sides of the bottom of the platform completely identical, the offset of the center of gravity can be reduced to a safe range by adjusting the tilt angle of the vertical hydraulic cylinder 12.

[0044] In one embodiment, it also includes a moving frame, a plurality of vertical hydraulic cylinders 12 are rotatably connected to the moving frame at the bottom, a plurality of second adjustment hydraulic cylinders 13 are connected to the moving frame, and the moving frame is slidably arranged on the platform;

[0045] Since the length of the platform is long and the length of the arc template connected to the platform is also long, the number of vertical hydraulic cylinders 12 used to connect the platform and the arc template is also large. If each vertical hydraulic cylinder 12 is connected to a second adjusting hydraulic cylinder 13, it is difficult to achieve synchronous action, resulting in greater control difficulty. When the actions of multiple vertical hydraulic cylinders 12 are not synchronized, the forces generated in the tilting direction will be dispersed, resulting in poor effect on center of gravity correction. Therefore, all vertical hydraulic cylinders 12 are connected to the mobile frame, and the mobile frame is set on the platform, and the second adjusting hydraulic cylinder 13 is connected to the mobile frame. When the first adjusting hydraulic cylinder 8 pushes the mobile bracket 6 to move, the second adjusting hydraulic cylinder 13 synchronously adjusts the mobile frame to move to the other side, causing the vertical hydraulic cylinder 12 on the mobile frame to tilt, and the component force generated after the vertical hydraulic cylinder 12 is tilted is transmitted to the platform, the offset center of gravity of the test bench can be corrected to avoid different forces on the tracks 1 on both sides.

[0046] In one embodiment, when the secondary lining and cable trench are synchronously constructed in a tunnel by the above device, the following steps are required:

[0047] S1: The platform is moved to the construction site via the slide rails, and the first anchor rod 5 at the bottom is fixed on the ground;

[0048] S2: The bottom lifting hydraulic cylinder is raised until the top plate 4 is 100-200 mm away from the target position and then stops, and the top vertical hydraulic cylinder 12 continues to rise until one side end of the top plate 4 abuts against the end of the constructed second lining and then stops;

[0049] S3: After the top plate 4 is installed in place, the horizontal hydraulic cylinder 11 pushes the side plate 3 to abut against the end of the constructed second lining and then stops;

[0050] S4: After the side plate 3 is installed in place, the tilting hydraulic cylinder 10 pushes the bottom plate 2 to abut against the end of the constructed cable trench side wall and then stops, and the second anchor rod 9 is connected to the ground.

[0051] When the platform moves to the center of gravity position of the tunnel construction through the track 1, there is no need to adjust the center of gravity through the first adjusting hydraulic cylinder 8. Therefore, when installing the arc formwork, it is a two-stage installation, that is, the vertical height is roughly adjusted by the lifting hydraulic cylinder, and then finely adjusted by the vertical hydraulic cylinder 12 when it is close to the predetermined position, until the top plate 4 of the arc formwork abuts against the end of the second lining of the previous section, completing the installation of the arc formwork.

[0052] Furthermore, when the platform is not in the center position after being moved to the construction position through the track 1, and it is necessary to adjust the horizontal position of the arc template and adjust the center of gravity, then in S2, after the lifting hydraulic cylinder is raised to the predetermined position, the extension and contraction amount of the first adjusting hydraulic cylinder 8 is adjusted, so that the second adjusting hydraulic cylinder 13 pushes the moving frame to move, thereby adjusting the inclination angle of the vertical hydraulic cylinder 12.

[0053] After adjusting the center of gravity position by the vertical hydraulic cylinder 12, since the vertical hydraulic cylinder 12 is in a tilted state, if the arc template is installed as described above, and the vertical hydraulic cylinder 12 is also used for fine adjustment in the vertical direction, the arc template will be offset in the horizontal direction and the center of gravity will be offset again. Therefore, unlike the above-mentioned vertical adjustment process, after the platform moves to the predetermined position through the track 1, it is first preliminarily adjusted to a certain height by the bottom lifting hydraulic cylinder, and then the horizontal position of the arc template is detected. When an offset occurs, the horizontal position of the arc template is adjusted by the first adjusting hydraulic cylinder 8, and the center of gravity is adjusted synchronously by the vertical hydraulic cylinder 12. When the arc template is adjusted to the center position, the height is adjusted for the second time by the bottom lifting hydraulic cylinder, and the top plate 4 of the arc template is abutted against the end of the second lining of the upper section, and then the side plates 3 and the bottom plate 2 on both sides are unfolded in turn to complete the installation of the arc template.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A one-time forming equipment for tunnel secondary lining and cable trench side wall, characterized by: It includes a vehicle platform, a movable bracket and an arc-shaped template; the movable bracket is slidably arranged on the vehicle platform, the arc-shaped template is connected to the movable bracket, a plurality of vertical hydraulic cylinders are rotatably connected below the arc-shaped template, the bottoms of the plurality of vertical hydraulic cylinders are slidably connected to the top of the vehicle platform, a plurality of first adjusting hydraulic cylinders and second adjusting hydraulic cylinders are horizontally arranged on the vehicle platform, the first adjusting hydraulic cylinder is connected to the movable bracket, the second adjusting hydraulic cylinder is connected to the bottom of the vertical hydraulic cylinder, one side oil chamber of the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder is connected, the other side oil chambers of the first adjusting hydraulic cylinder and the second adjusting hydraulic cylinder are respectively connected to the oil supply device, the moving direction of the movable bracket is opposite to the moving direction of the bottom of the vertical hydraulic cylinder, and is used to balance the force on the bottom of the vehicle platform; It also includes an auxiliary hydraulic cylinder, both ends of which are respectively connected to the movable bracket and the arc-shaped template, and the auxiliary hydraulic cylinder is extended and retracted along with the movement of the vertical hydraulic cylinder.

2. The one-time forming equipment for tunnel secondary lining and cable trench side wall according to claim 1 is characterized by: The arc-shaped template includes a top plate, two side plates and two bottom plates, the two side plates are symmetrically hinged to the two side edges of the top plate, and the two bottom plates are hinged to the side edges of the two side plates. The top plate, the two side plates and the two bottom plates form a continuous arc-shaped plate. The top plate is connected to the top of the platform through a vertical hydraulic cylinder, the side plate is connected to the middle side of the platform through a horizontal hydraulic cylinder, and the bottom plate is connected to the bottom side of the platform through a tilting hydraulic cylinder. Several of the horizontal hydraulic cylinders and the tilting hydraulic cylinders are extended and retracted with the movement of the movable bracket.

3. The one-time forming equipment for tunnel secondary lining and cable trench side wall according to claim 2 is characterized by: A plurality of lifting hydraulic cylinders are arranged at the bottom of the platform, and rollers are arranged at the bottom of the plurality of lifting hydraulic cylinders. The rollers are arranged to roll on tracks on the ground.

4. The one-time forming equipment for tunnel secondary lining and cable trench side wall according to claim 3 is characterized by: A plurality of first anchor rods are arranged on the inner side surfaces of both sides of the vehicle platform, and the plurality of first anchor rods are used to anchor the vehicle platform on the ground.

5. The one-time forming equipment for tunnel secondary lining and cable trench side wall according to claim 4 is characterized by: The bottom plate is provided with a second anchor rod, and the second anchor rod is used to anchor the bottom plate to the ground. The first anchor rod, the second anchor rod, the bottom plate and the tilting hydraulic cylinder form a triangular support structure.

6. The one-time forming equipment for tunnel secondary lining and cable trench side wall according to claim 5 is characterized by: It also includes a moving frame, the bottoms of a plurality of the vertical hydraulic cylinders are rotatably connected to the moving frame, a plurality of the second adjusting hydraulic cylinders are connected to the moving frame, and the moving frame is slidably arranged on the platform.

7. A one-time forming construction method for a tunnel secondary lining and a cable trench side wall, which is applicable to a one-time forming equipment for a tunnel secondary lining and a cable trench side wall according to claim 6, characterized in that: The following steps are involved: S1: The platform moves to the construction site through the slide rail, and the first anchor rod at the bottom is fixed on the ground; S2: The bottom lifting hydraulic cylinder rises until the top plate is 100-200mm away from the target position and then stops. The top vertical hydraulic cylinder continues to rise until one side end of the top plate abuts against the end of the constructed second lining and then stops; S3: After the top plate is installed in place, the horizontal hydraulic cylinder pushes the side plate to abut against the end of the constructed second lining and then stops; S4: After the side plates are installed in place, the tilting hydraulic cylinder pushes the bottom plate to abut against the end of the constructed cable trench side wall and then stops, and the second anchor rod is connected to the ground.

8. A one-time forming construction method for tunnel secondary lining and cable trench side wall according to claim 7, characterized in that: In S2, after the lifting hydraulic cylinder is raised to a predetermined position, when the arc template is not in a central position, the second adjusting hydraulic cylinder pushes the moving frame to move by adjusting the extension and contraction amount of the first adjusting hydraulic cylinder, thereby adjusting the tilt angle of the vertical hydraulic cylinder.

9. A one-time forming construction method for tunnel secondary lining and cable trench side wall according to claim 8, characterized in that: After the adjustment of the first adjusting hydraulic cylinder is completed, the platform is continuously raised by the lifting hydraulic cylinder until one side end of the top plate abuts against the end of the constructed second lining and then stops.

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