CN111396091A - Movable integral template for tunnel center ditch and application method thereof - Google Patents

Movable integral template for tunnel center ditch and application method thereof Download PDF

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Publication number
CN111396091A
CN111396091A CN202010343543.9A CN202010343543A CN111396091A CN 111396091 A CN111396091 A CN 111396091A CN 202010343543 A CN202010343543 A CN 202010343543A CN 111396091 A CN111396091 A CN 111396091A
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CN
China
Prior art keywords
formwork
template
lifting cylinder
cylinder
panel
Prior art date
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Pending
Application number
CN202010343543.9A
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Chinese (zh)
Inventor
于家武
郭振枝
唐绍武
洪开荣
李志军
候京通
朱小红
龙文华
高坤
陈国安
许江涛
李永强
徐腾
王秋林
李社伟
赵宝峰
熊良
李秀宽
费孟良
徐胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Group Erchu Co Ltd
Original Assignee
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Group Erchu Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Tunnel Group Co Ltd CRTG, China Railway Tunnel Group Erchu Co Ltd filed Critical China Railway Tunnel Group Co Ltd CRTG
Priority to CN202010343543.9A priority Critical patent/CN111396091A/en
Publication of CN111396091A publication Critical patent/CN111396091A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/102Removable shuttering; Bearing or supporting devices therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor

Abstract

The invention discloses a tunnel center ditch movable type integral template and a using method thereof, and the tunnel center ditch movable type integral template comprises a panel and a lifting device arranged below the panel, wherein the panel comprises a top template and side templates positioned at two sides of the top template, the cross section of the panel is in an inverted U shape, the lifting device comprises a bearing vehicle and a lifting cylinder, one end of the lifting cylinder is connected with the bearing vehicle, and the other end of the lifting cylinder is connected with the top template. The invention has the advantages that the inverted U-shaped panel is arranged, the cover plate and the side wall of the central ditch are directly poured above the panel, so that the cover plate and the side wall are integrally poured, the phenomena of frequent warping of the prefabricated cover plate during installation and frequent corner damage during installation of the prefabricated cover plate can be avoided, the problem that the prefabricated cover plate occupies too much space is also solved, the panel is installed on a bearing vehicle below, and can be automatically transported in the central ditch by being driven by the bearing vehicle to move, and the convenience is very high.

Description

Movable integral template for tunnel center ditch and application method thereof
Technical Field
The invention relates to the field of tunnel construction and underground engineering construction, in particular to a movable integral template for a tunnel central ditch and a use method thereof.
Background
In the current tunnel construction process in China, a central ditch mostly adopts a mode of casting a bottom plate, a side wall and a prefabricated cover plate in situ, the method has low construction efficiency, the cover plate needs to occupy a field for prefabrication, construction vehicles cannot pass before the cover plate is installed, the installation cover plate is easy to warp, and the edges and corners of the installed cover plate are easy to crush and damage.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention aims to provide a movable integral template for a tunnel central ditch and a use method thereof, aiming at solving the defects that the existing tunnel central ditch adopts a prefabricated cover plate, the existing tunnel central ditch is inconvenient in site occupation during prefabrication, easy to warp during installation and easy to damage the edges and corners of the cover plate during installation.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a tunnel center ditch movable type integral formwork comprises a panel and a lifting device arranged below the panel, wherein the panel comprises a top formwork and side formworks positioned at two sides of the top formwork, the cross section of the panel is in an inverted U shape, the lifting device comprises a bearing vehicle and a lifting cylinder, one end of the lifting cylinder is connected to the bearing vehicle, and the other end of the lifting cylinder is connected to the top formwork.
According to the invention, when the top template and the side template are positioned at the set positions, the cover plate is poured above the top template, the side wall is poured outside the side template, and the cover plate and the side wall are poured simultaneously, so that the cover plate and the side wall can be poured into a whole, and the cover plate is not warped when being used, and is integrally poured, so that the edge and corner of the cover plate are not damaged due to collision with the side wall when the original cover plate is installed. And also removed the prefabricated inconvenience that occupies the place of apron from, wait for the apron of cast in situ and lateral wall solidification back, can start lifting cylinder and descend for the panel (being top template and lateral wall template) breaks away from, then pulls away whole device.
The bearing car is the device that is used for bearing the weight of the panel, sets up the gyro wheel below the bearing car, makes things convenient for the device to walk promptly.
Furthermore, the side formwork is hinged to the top formwork, the side formwork is controlled to turn through a stretching device, the stretching device comprises a left side air cylinder and a right side air cylinder, one end of the left side air cylinder is hinged to the top formwork, the other end of the left side air cylinder is hinged to the left side formwork, one end of the right side air cylinder is hinged to the top formwork, and the other end of the right side air cylinder is hinged to the right side formwork.
The side template is hinged with the top template, so that when the template is disassembled, the side template is firstly contracted, the side template is firstly demoulded, and then the panel is integrally descended, so that the side wall is not subjected to friction damage in the demould process, and the side template is obliquely demoulded, so that the damage to the surface of the side wall is much lower than that of the side template which is completely and jointly separated.
Further, back ribs are arranged on the back parts of the top template and the side templates. The strength of the template is increased, and crack damage is avoided after the template is pressed by pouring objects on the template.
Further, a top longitudinal beam penetrating through the top template is arranged at the back of the top template, the lifting cylinder is connected to the top template through the top longitudinal beam, and the left side cylinder and the right side cylinder are connected to the top template through the top longitudinal beam. If the lifting cylinder is directly arranged on the top template, when the top template is pulled, the stress point is in a certain range, the phenomenon that the top template is pulled and cracked can occur, the longitudinal beam is arranged, so that the stress point pulled on the top template is a piece longitudinally connected with the top template, the longitudinal beam is thicker and cannot be pulled and cracked, the service life of the top template is prolonged,
further, the back of the side formwork is provided with a side longitudinal beam penetrating through the side formwork, and the left side air cylinder and the right side air cylinder are connected to the side formwork through the side longitudinal beam. The side stringers act in concert with the top stringers.
Furthermore, a lower longitudinal beam penetrating through the bearing vehicle is arranged on the bearing vehicle, the lifting cylinder is connected with the bearing vehicle through the lower longitudinal beam, and the effect of the lower longitudinal beam is consistent with that of the top longitudinal beam.
Furthermore, the lifting cylinder is hinged with the top template, and the lifting cylinder is hinged with the bearing vehicle, in the invention, the upper end and the lower end of the lifting cylinder are hinged, and the surface formed by rotation is parallel to the extending direction of the top template, so that the top template can be obliquely demoulded, namely, one end of the top template descends firstly, and the top template and a pouring object are separated, and then the top template descends integrally, thereby avoiding the damage of the pouring object caused by the larger pulling force generated by demoulding the whole binding surface.
Furthermore, a pressure gauge is arranged at the joint of the lifting cylinder and the top template, and the output end of the pressure gauge is connected to the lifting cylinder. When the lifting cylinder of one end descends, the descending distance of the middle lifting cylinder cannot be directly controlled, the top template is dragged due to too much contraction, the contraction is too little, and the top template can be damaged due to too much pressure.
A use method of a movable integral template of a tunnel center ditch comprises the following steps:
s1: after the device moves to a set position, all lifting cylinders are started simultaneously to lift the top template to the set position;
s2: simultaneously starting all the left side cylinders to adjust the corresponding side templates to the set positions, and simultaneously starting all the right side cylinders to adjust the corresponding side templates to the set positions;
s3: pouring a cover plate on the top surface of the top template, pouring a side wall on the outer side of the side template, and integrally pouring the cover plate and the side wall;
s4: after the cover plate and the side wall are solidified, simultaneously starting all the left side air cylinders, withdrawing the corresponding side template, simultaneously starting all the right side air cylinders, and withdrawing the corresponding side template, so that the side templates on the two sides are separated from the side wall;
s5: starting a lifting cylinder at one end of the top template, lowering one end of the top template to enable the top template to be inclined to 4-8 degrees, and then simultaneously starting the lifting cylinder to enable the top template to be lowered to enable the top template to be separated from the cover plate;
s6: and moving the device to the next section of engineering, repeating the steps S1-S5, and repeating the steps in sequence, and completing the whole engineering.
The method is mainly used for integrally pouring the cover plate and the side wall, and the cover plate and the side wall are basically not damaged when the mold is removed.
In the step S5, a pressure gauge is arranged at the joint of the lifting cylinder and the top template, the limit of the pressure gauge is set in the process of inclining the top template (1-1), when the pressure measured by the pressure gauge is lower than the limit, the lifting cylinder keeps not acting, and when the pressure measured by the pressure gauge exceeds the limit, the lifting cylinder contracts.
The invention at least comprises the following beneficial effects: (1) the inverted U-shaped panel is arranged, and the cover plate and the side wall of the central ditch are directly poured above the panel, so that the cover plate and the side wall are integrally poured, the phenomena that the prefabricated cover plate is often warped when being installed and the prefabricated cover plate is often damaged due to edges and corners when being installed can be avoided, the problem that the prefabricated cover plate occupies too much space is also solved, the panel is installed on a bearing vehicle below and can be automatically transported in the central ditch by being driven by the bearing vehicle to move, and great convenience is brought;
(2) the side formwork and the top formwork are hinged, when the formwork is disassembled, the side formwork is rotated firstly, so that the side formwork is obliquely demoulded, then the top formwork is demoulded, and the damage of the side formwork to a newly poured side wall when the whole demoulding is carried out is avoided;
(3) the two ends of the lifting cylinder are hinged, so that inclined demolding can be adopted when the top template is demolded, the integral demolding is avoided, and the damage to a newly poured cover plate, the lifting cylinder and the like due to overlarge pulling force is avoided.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of example 1;
fig. 2 is a bottom view of the face plate 1 in embodiment 1;
FIG. 3 is a top view of the lifting device of example 1;
FIG. 4 is a schematic structural view of embodiment 2 after the lifting device is removed;
FIG. 5 is a bottom view of the face 1 in example 2;
FIG. 6 is a schematic view of the stretching apparatus of example 3 with the stretching apparatus removed;
FIG. 7 is a schematic structural view of the lifting device of embodiment 3 after being removed;
FIG. 8 is a schematic view of the stretching apparatus of example 4 after its removal;
fig. 9 is a sectional view of the joint of the lift cylinder and the panel in embodiment 5.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-3, the movable integral formwork for the central ditch of the tunnel comprises a panel 1 and a lifting device 2 arranged below the panel 1, wherein the panel 1 comprises a top formwork 1-1 and side formworks 1-2 positioned at two sides of the top formwork 1-1, the cross section of the panel 1 is in an inverted U shape, the lifting device 2 comprises a load-bearing vehicle 2-1 and a lifting cylinder 2-2, one end of the lifting cylinder 2-2 is connected to the load-bearing vehicle 2-1, and the other end of the lifting cylinder 2-2 is connected to the top formwork 1-1.
In the embodiment, the panel 1 is made of a steel structure and is in an inverted U shape, the middle of the panel is horizontally provided with a top template 1-1, the two sides of the panel are vertically provided with side templates 1-2, the extending length of the panel 1 is 6-12m, in the lifting device 2, the length of the load-bearing vehicle 2-1 is consistent with that of the panel 1, the lifting cylinders 2-2 are hydraulic cylinders and are in double rows, the extending direction of each row of the lifting cylinders 2-2 is consistent with that of the panel 1, and in each row of the lifting cylinders 2-2, the lifting cylinders 2-2 are arranged at equal intervals, as shown in fig. 2, namely the bottom view of the panel 1 is provided, wherein the two rows of circles are mounting points of the lifting cylinders 2-. The bearing vehicle 2-1 comprises a bearing plate 2-3 and an auxiliary wheel 2-4 arranged below the bearing plate 2-3, and the device is convenient to walk. The device can walk in the central ditch by generally being pulled by a hoist.
Example 2
Referring to fig. 4 and 5, in this embodiment, on the basis of embodiment 1, the side formwork 1-2 is hinged to the top formwork 1-1, the side formwork 1-2 is also controlled to turn over by the stretching device 3, the stretching device 3 includes a left cylinder 3-1 and a right cylinder 3-2, one end of the left cylinder 3-1 is hinged to the top formwork 1-1, the other end is hinged to the left side formwork 1-2, one end of the right cylinder 3-2 is hinged to the top formwork 1-1, and the other end is hinged to the right side formwork 1-2.
In the embodiment, the side formworks 1-2 on the two sides are hinged with the top formwork 1-1 in the middle, so that the side formworks 1-2 can be separated from the casting from the lower end edge firstly when the formwork is disassembled, and then the upper part is separated slowly, the side formworks can be separated in an incomplete mode and can be separated in an inclined mode, too large adsorption can be avoided, the cylinder is pulled to be damaged, and the casting is also prevented from being damaged, the side formworks 1-2 are designed to be of an inverted L type, the horizontal section of the side formworks is hinged with the top formwork 1-1, and a chamfer is arranged at the joint of the horizontal section and the vertical section, so that the top-out phenomenon cannot occur in the rotation process when the formwork is disassembled, namely, the part is lifted due to the rotation, so that the casting is jacked to damage the casting.
The left cylinder 3-1 and the right flagpole 3-2 both adopt hydraulic cylinders. The left cylinder 3-1 may control the side form 1-2 positioned at the left side of the side form 1-2, and the right cylinder 3-2 may control the side form 1-2 positioned at the right side of the side form 1-2.
Fig. 5 is a bottom view of the panel 1, where the two larger circles represent the mounting points for the lifting cylinders 2-2 and the smaller circle in the middle represents the mounting point for the spreader 3.
Example 3
Referring to fig. 6 and 7, in the present embodiment, on the basis of embodiment 2, the back of both the top form 1-1 and the side form 1-2 in the device is provided with a back rib 1-3. The back of the top template 1-1 is provided with a top longitudinal beam 4 penetrating through the top template 1-1, the lifting cylinder 2-2 is connected to the top template 1-1 through the top longitudinal beam 4, and the left side cylinder 3-1 and the right side cylinder 3-2 are both connected to the top template 1-1 through the top longitudinal beam 4. The back of the side formwork 1-2 is provided with a side longitudinal beam 5 penetrating through the side formwork 1-2, and the left side cylinder 3-1 and the right side cylinder 3-2 are connected to the side formwork 1-2 through the side longitudinal beam 5. The bearing vehicle 2-1 is provided with a lower longitudinal beam 6 penetrating through the bearing vehicle 2-1, and the lifting cylinder 2-2 is connected with the bearing vehicle 2-1 through the lower longitudinal beam 6.
The back ribs 1-3, the top longitudinal beam 4, the side longitudinal beams 5 and the lower longitudinal beam 6 arranged in the embodiment can play a role in strengthening the strength of the panel 1, and the problem that the panel 1 is pulled and damaged due to concentrated pulling force when the panel 1 is pulled by a cylinder can be solved.
Example 4
Referring to fig. 8, in this embodiment, on the basis of embodiment 3, in the device, the lifting cylinder 2-2 is hinged to the top formwork 1-1, and the lifting cylinder 2-2 is hinged to the load-bearing vehicle 2-1.
In this embodiment, mainly make top template 1-1 when the form removal, also can adopt the slope separation, avoid adsorbing too big for the cylinder drags the damage, also avoids damaging the pouring thing, and the pouring thing is apron and the side wall of pouring promptly. In the embodiment, the hinge points are located between the lifting cylinder 2-2 and the top longitudinal beam 4 and between the lifting cylinder and the lower longitudinal beam 6, the top longitudinal beam 4 is a reinforcing member of the top formwork 1-1, which means that the lifting cylinder 2-2 is hinged to the top formwork 1-1, and the lower longitudinal beam 6 is a reinforcing member of the load-bearing vehicle 2-1, which means that the lifting cylinder 2-2 is hinged to the load-bearing vehicle 2-1.
Example 5
Referring to fig. 9, in this embodiment, on the basis of embodiment 4, a pressure gauge 7 is disposed at the connection position of the lifting cylinder 2-2 and the top die plate 1, and the output end of the pressure gauge 7 is connected to the lifting cylinder 2-2.
In the embodiment, mainly during the inclined separation of the top template 1-1, the rows of lifting cylinders 2-2 cannot adjust the shrinkage degree manually, so that the length can be automatically adjusted by the received pressure, and the phenomenon that the top template 1 is damaged by the overlarge pressure is avoided.
In the embodiment, the pressure gauge 7 is installed between the lifting cylinder 2-2 and the top longitudinal beam 4, the relationship between the top template 1-1 and the top longitudinal beam 4 has been explained in the embodiment 4, the top longitudinal beam 4 is a reinforcement of the top template 1-1, which is equivalent to the pressure gauge 7 is arranged at the joint of the lifting cylinder 2-2 and the top template 1, and it can be seen in the figure that the lifting cylinder 2-2 is installed on the top longitudinal beam 4 through the pressure gauge 7, so that the gravity borne by the lifting cylinder 2-2 is consistent with that of the pressure gauge 7, and the pressure gauge 7 can completely measure the gravity borne by the lifting cylinder 2-2.
Example 6
A use method of a movable integral template of a tunnel center ditch comprises the following steps:
s1: after the device moves to a set position, all lifting cylinders 2-2 are started simultaneously to lift the top template 1-1 to the set position;
s2: simultaneously starting all the left side cylinders 3-1, adjusting the corresponding side templates 1-2 to set positions, simultaneously starting all the right side cylinders 3-2, and adjusting the corresponding side templates 1-2 to set positions;
s3: pouring a cover plate on the top surface of the top template 1-1, pouring a side wall on the outer side of the side template 1-2, and integrally pouring the cover plate and the side wall;
s4: after the cover plate and the side wall are solidified, simultaneously starting all the left side air cylinders 3-1, withdrawing the corresponding side templates 1-2, simultaneously starting all the right side air cylinders 3-2, withdrawing the corresponding side templates 1-2, and separating the side templates 1-2 at the two sides from the side wall;
s5: firstly, starting a lifting cylinder 2-2 at the end of one end of a top template 1-1, lowering one end of the top template 1-1 to enable the top template 1-1 to be inclined to 4-8 degrees, and then simultaneously starting the lifting cylinder 2-2 to enable the top template 1-1 to be lowered to enable the top template 1-1 to be separated from a cover plate;
s6: moving the device to the next section of engineering, repeating the steps S1-S5, and repeating the steps in the same way to finish the whole engineering;
in step S5, a pressure gauge 7 is disposed at a connection position between the lifting cylinder 2-2 and the top die plate 1-1, a limit of the pressure gauge 7 is set during the tilting of the top die plate 1-1, when the pressure gauge 7 detects that the pressure applied thereto is lower than the limit, the lifting cylinder 1-1 remains inactive, and when the pressure gauge 7 detects that the pressure applied thereto exceeds the limit, the lifting cylinder 1-1 contracts.
In the invention, the longitudinal length of the top template 1-1 is generally 6-12m, a cover plate is poured on the upper end of the top template, the cover plate is a reinforced cement plate, the weight can be estimated through the actual width and thickness, then the bearing force of the top template 1-1 is obtained, the weight of the cover plate added with the top template 1-1 and the side templates 1-2, namely the weight which needs to be born by the lifting air cylinder 1-1 is obtained, the weight is evenly distributed to each lifting air cylinder 1-1, the lowest gravity which the single lifting air cylinder 1-1 needs to bear is obtained, the lowest gravity floats upwards by 30 percent, namely the limit of a pressure gauge 7 is obtained, when the pressure measured by the pressure gauge 7 exceeds the limit, the lifting air cylinder 1-1 contracts, and certainly, the pressure gauge 7 is not arranged on the lifting air cylinder 2-2 at the end which is started at the beginning for automatic control, is a lifting cylinder 2-2 at the end of the manual operation of the worker.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a portable whole template of tunnel center ditch, its characterized in that includes panel (1) and lifting device (2) of setting in panel (1) below, panel (1) including top template (1-1) and lateral part template (1-2) that are located top template (1-1) both sides, the transversal U type of personally submitting the inversion of panel (1), lifting device (2) are including bearing car (2-1) and lifting cylinder (2-2), lifting cylinder (2-2) one end is connected in bearing car (2-1), and the other end is connected to top template (1-1).
2. A formwork according to claim 1, wherein the side formwork (1-2) is hinged with the top formwork (1-1), the side formwork (1-2) is also controlled to turn by a stretching device (3), the stretching device (3) comprises a left side cylinder (3-1) and a right side cylinder (3-2), one end of the left side cylinder (3-1) is hinged with the top formwork (1-1), the other end is hinged with the left side formwork (1-2), one end of the right side cylinder (3-2) is hinged with the top formwork (1-1), and the other end is hinged with the right side formwork (1-2).
3. A formwork as claimed in claim 1 or 2, wherein the back of both the top formwork (1-1) and the side formwork (1-2) is provided with a back rib (1-3).
4. A formwork as claimed in claim 2, characterized in that the back of the roof formwork (1-1) is provided with a roof rail (4) extending through the roof formwork (1-1), the lifting cylinder (2-2) being connected to the roof formwork (1-1) by means of the roof rail (4), the left-hand cylinder (3-1) and the right-hand cylinder (3-2) being connected to the roof formwork (1-1) by means of the roof rail (4).
5. A formwork as claimed in claim 2, wherein the back of the side formwork (1-2) is provided with side stringers (5) penetrating the side formwork (1-2), and the left side cylinder (3-1) and the right side cylinder (3-2) are connected to the side formwork (1-2) by the side stringers (5).
6. A formwork according to claim 1, wherein the load-bearing vehicle (2-1) is provided with a lower longitudinal beam (6) extending through the load-bearing vehicle (2-1), and the lifting cylinder (2-2) is connected to the load-bearing vehicle (2-1) via the lower longitudinal beam (6).
7. A formwork as claimed in claim 1, wherein the lifting cylinder (2-2) is hinged to the top formwork (1-1) and the lifting cylinder (2-2) is hinged to the load-bearing carriage (2-1).
8. A formwork according to claim 1, wherein a pressure gauge (7) is provided at the connection of the lifting cylinder (2-2) to the top formwork (1), the output of the pressure gauge (7) being connected to the lifting cylinder (2-2).
9. A use method of a movable integral template of a tunnel center ditch is characterized by comprising the following steps:
s1: after the device moves to a set position, all lifting cylinders (2-2) are started simultaneously to lift the top template (1-1) to the set position;
s2: simultaneously starting all the left side cylinders (3-1), adjusting the corresponding side templates (1-2) to a set position, simultaneously starting all the right side cylinders (3-2), and adjusting the corresponding side templates (1-2) to a set position;
s3: pouring a cover plate on the top surface of the top template (1-1), pouring a side wall on the outer side of the side template (1-2), and integrally pouring the cover plate and the side wall;
s4: after the cover plate and the side wall are solidified, simultaneously starting all the left side cylinders (3-1), withdrawing the corresponding side templates (1-2), simultaneously starting all the right side cylinders (3-2), withdrawing the corresponding side templates (1-2), and separating the side templates (1-2) at two sides from the side wall;
s5: starting a lifting cylinder (2-2) at one end of the top template (1-1), lowering one end of the top template (1-1) to enable the top template (1-1) to be inclined to 4-8 degrees, and then simultaneously starting the lifting cylinder (2-2) to enable the top template (1-1) to be lowered to enable the top template (1-1) to be separated from a cover plate;
s6: and moving the device to the next section of engineering, repeating the steps S1-S5, and repeating the steps in sequence, and completing the whole engineering.
10. A method of use according to claim 9, wherein in step S5, a pressure gauge (7) is provided at the connection between the lifting cylinder (2-2) and the top platen (1-1), and during tilting of the top platen (1-1), the limit of the pressure gauge (7) is set, and when the pressure gauge (7) detects that the pressure applied thereto is below the limit, the lifting cylinder (1-1) is kept inactive, and when the pressure gauge (7) detects that the pressure applied thereto exceeds the limit, the lifting cylinder (1-1) is retracted.
CN202010343543.9A 2020-04-23 2020-04-23 Movable integral template for tunnel center ditch and application method thereof Pending CN111396091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010343543.9A CN111396091A (en) 2020-04-23 2020-04-23 Movable integral template for tunnel center ditch and application method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010343543.9A CN111396091A (en) 2020-04-23 2020-04-23 Movable integral template for tunnel center ditch and application method thereof

Publications (1)

Publication Number Publication Date
CN111396091A true CN111396091A (en) 2020-07-10

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ID=71435552

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Application Number Title Priority Date Filing Date
CN202010343543.9A Pending CN111396091A (en) 2020-04-23 2020-04-23 Movable integral template for tunnel center ditch and application method thereof

Country Status (1)

Country Link
CN (1) CN111396091A (en)

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