CN217027200U - Template operation trolley and operation system for construction of height-gradient retaining wall - Google Patents

Abstract

The utility model provides a template operation trolley and an operation system for construction of a retaining wall with gradually changed height, wherein the operation trolley comprises: the device comprises a vehicle body, a longitudinal beam, a track travelling wheel, a traction ring and a gantry lifting frame; the longitudinal beams are arranged at the bottom of the vehicle body in parallel, a group of track travelling wheels is uniformly arranged on the lower side of each longitudinal beam, traction rings are arranged at two ends of the vehicle body, a gantry lifting frame is arranged at the top of the vehicle body, an electric hoist capable of travelling transversely is arranged on the gantry lifting frame, and the electric hoist is connected with the traction rings. The utility model can be used for the supporting system of the whole installation of the road and bridge retaining wall and anti-collision wall construction template, the mould entering, the concrete pouring, the demoulding and the whole template transferring, and has the advantages of convenient installation, simple operation, safety and reliability.

Description

Template operation trolley and operation system for construction of height-gradient retaining wall

[ technical field ] A

The utility model relates to the technical field of construction auxiliary equipment, in particular to a template operation trolley and an operation system for construction of a height gradient retaining wall.

[ background ] A method for producing a semiconductor device

In the prior road and bridge retaining wall and anti-collision wall site concrete pouring construction, manual work or truck crane site matching assembly installation templates are adopted, a support system and a working operation platform are erected by adopting a floor scaffold or a portal frame support system, a formwork is supported, concrete is poured, demolding, formwork removal, formwork transfer and assembly are carried out, each flowing water section needs to repeat complex procedures, the labor and the time are wasted, the construction period is long, and the efficiency is low. The used support systems are made of a plurality of materials, occupy a large construction site and increase the material cost and the transportation cost. After the scaffold rod and the portal frame are used, the scaffold rod and the portal frame are easy to deform during transportation, loading and unloading, and a large amount of manpower and material resources are needed for cleaning, maintenance and repair. Compared with a road and bridge retaining wall construction formwork supporting trolley, the whole supporting and protecting system used at present occupies a large amount of materials, is high in transportation cost, low in efficiency, long in construction period and high in labor cost.

Aiming at the problems, the road and bridge retaining wall construction formwork supporting trolley is developed. The method has the advantages that the standard templates and trolley components with limited specifications and easy installation and disassembly are transported to a construction site, the trolley is assembled to the site at one time, and the standard block templates on the site are assembled into the assembled large templates required by construction by the trolley, so that various defects of the traditional pre-history formwork supporting system are overcome, the construction efficiency is greatly improved, and the difficult problems of integral formwork supporting, demoulding and transferring of the road and bridge ultrahigh retaining wall construction site are solved.

Accordingly, there is a need to develop a formwork work trolley and a work system for the construction of a highly graded retaining wall that address the deficiencies of the prior art to solve or mitigate one or more of the problems set forth above.

[ Utility model ] A method for manufacturing a semiconductor device

In view of the above, the utility model provides the formwork operation trolley and the operation system for the construction of the retaining wall with the gradually-changed height, which can be used for a supporting system for integrally installing the retaining wall of a road bridge and the construction formwork of an anti-collision wall, entering a formwork, pouring concrete, demoulding and integrally transferring the formwork, and are convenient to install, simple to operate, safe and reliable.

In one aspect, the present invention provides a formwork work trolley for construction of a highly graded retaining wall, the work trolley comprising: the device comprises a vehicle body, a longitudinal beam, a track travelling wheel, a traction ring and a gantry lifting frame; the longitudinal beams are arranged at the bottom of the vehicle body in parallel, a set of track traveling wheels are uniformly arranged on the lower side of each longitudinal beam, the track traveling wheels are arranged on tracks, traction rings are arranged at the two ends of the vehicle body, a gantry lifting frame is arranged at the top of the vehicle body, an electric hoist capable of walking transversely is arranged on the gantry lifting frame, and the electric hoist is connected with the traction rings.

The above aspects and any possible implementations further provide an implementation, where the gantry crane includes a cross beam and two vertical legs, the two vertical legs are parallel to each other, two ends of the two vertical legs are connected to the ground and the cross beam respectively, and the vertical legs are perpendicular to the cross beam.

According to the above aspect and any possible implementation manner, an implementation manner is further provided, wherein I-shaped steel is arranged on the lower side of the cross beam, the electric hoist capable of walking transversely is arranged on the I-shaped steel, two ends of the I-shaped steel are connected with the two vertical supporting legs through welding flanges, and the upper side of the I-shaped steel is connected with the cross beam through a connecting piece.

The above aspects and any possible implementation manner further provide an implementation manner, the rail is a standard crane steel rail member, the rail is laid outside the construction retaining wall, the two rails are arranged in parallel, the distance between the rails is not less than 7.5 m, and the distance between any one rail and the construction retaining wall is not less than 1.5 m.

In the above aspect and any possible implementation manner, a lifting point and a ground anchor fixing rope are provided on the periphery of the vehicle body, one end of the ground anchor fixing rope is connected to the ground, and the other end of the ground anchor fixing rope is fixedly connected to the vehicle body through the lifting point.

The above aspects and any possible implementations further provide an implementation where the number of the lifting points and the ground anchor stabilizing pulling ropes is not less than 6.

The aspect and any possible implementation manner described above further provide an implementation manner, and the formwork operation system for the construction of the height gradient retaining wall comprises an operation trolley, a plurality of formworks, adjustable bolts and adjustable supporting rods, wherein the formworks are arranged at the bottom and two sides of the operation trolley, the formwork arranged at one side of the retaining wall is connected with the trolley body through the adjustable supporting rods, and the formwork at the bottom of the operation trolley is connected with the formworks at two sides of the operation trolley through the adjustable bolts.

The above aspects and any possible implementations further provide an implementation, where the work system further includes a construction operation platform, and the construction operation platform is disposed on the vehicle body.

The above aspects and any possible implementation manners further provide an implementation manner, and the construction operation platform is formed by laying pattern panels on the upper side of the truss.

The above aspects and any possible implementation manner further provide an implementation manner, and the operation system further includes a safety fence, and the safety fence is arranged on the periphery side of the construction operation platform.

Compared with the prior art, the utility model can obtain the following technical effects:

1. the bearing capacity is strong, the safety and the reliability are realized, the occupied area is small, and the mold entering, the demolding and the transferring are convenient;

2. the templates are standardized, the occupied space is small, the storage and the transportation are easy, and the transportation cost is saved;

3. standardization and serialization are realized, production management is easy, the processing quality is stable, and the production cost is reduced;

4. the application range is wide, the construction of retaining walls and anti-collision walls with different heights can be realized within the lifting height range according to the construction requirement, the construction of a retaining wall water flowing section with the length of more than 15 meters can be realized by integrally or sectionally lifting the template, and the labor cost can be greatly saved;

6. the standard block template is adopted, so that the template can be used in a turnover mode, the utilization rate is high, and the amortization cost is low.

Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously in the practice of the utility model.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a general assembly drawing of a formwork operation trolley and a formwork support trolley of an operation system for the construction of a highly graded retaining wall according to the present invention;

FIG. 2 is a drawing of a platform truss of the formwork operation trolley and the operation system for the construction of a highly graded retaining wall according to the present invention;

FIG. 3 is a longitudinal sub-beam view of a formwork work trolley and work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 4 is a transverse secondary beam diagram of a formwork operation trolley and an operation system for the construction of a highly graded retaining wall according to the present invention;

FIG. 5 is a drawing of an adjustable tie bar of a form work trolley and work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 6 is a tripod diagram of the platform of the formwork operation trolley and the operation system for the construction of the retaining wall with gradually changed height according to the present invention;

FIG. 7 is a view of the wheel assembly of the formwork work trolley and work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 8 is a longitudinal girder view of a formwork work trolley and work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 9 is a view of a gantry main frame of the formwork work trolley and work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 10 is a drawing of an assembled large steel form of the form work trolley and work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 11 is a drawing of the template work trolley and the work system for the construction of a highly graded retaining wall according to the present invention;

FIG. 12 is a tripod diagram of a template operation trolley and an operation system for the construction of a retaining wall with gradually changed height according to the present invention;

FIG. 13 is a triangular truss diagram of a formwork operation trolley and an operation system for the construction of a highly graded retaining wall according to the present invention;

wherein, in the figure:

1-crane rail; 2, a platform truss; 3-longitudinal secondary beam; 4-transverse secondary beam; 5, walking and dragging an electric hoist; 6-adjustable pull rod 1; 7-a walking tripod 1; 8-a wheel assembly; 9-longitudinal main beam; 10-gantry main frame; 11-assembled large form; 12-scaffold board; 13-a walking tripod 2; 14-ground anchor fiber rope; 15-adjustable tie rod 2; 16-a triangular truss; 17-hoisting the electric hoist; 18-platform guardrail.

[ detailed description ] embodiments

In order to better understand the technical scheme of the utility model, the following detailed description of the embodiments of the utility model is made with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the description of the utility model and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The utility model provides a template operation trolley for construction of a height gradient retaining wall, which comprises: the device comprises a vehicle body, a longitudinal beam, a track travelling wheel, a traction ring and a gantry lifting frame; the longitudinal beams are arranged at the bottom of the vehicle body in parallel, a set of track traveling wheels are uniformly arranged on the lower side of each longitudinal beam, the track traveling wheels are arranged on tracks, traction rings are arranged at the two ends of the vehicle body, a gantry lifting frame is arranged at the top of the vehicle body, an electric hoist capable of walking transversely is arranged on the gantry lifting frame, and the electric hoist is connected with the traction rings. The gantry lifting frame comprises a cross beam and two vertical supporting legs, the two vertical supporting legs are arranged in parallel, two ends of each vertical supporting leg are connected with the ground and the cross beam respectively, and the vertical supporting legs are perpendicular to the cross beam. The crossbeam downside is provided with the I-steel, the electric block setting of horizontal walking is on the I-steel, the I-steel both ends are passed through welded flange and are connected with two vertical landing legs, and the I-steel upside passes through the connecting piece and is connected with the crossbeam.

The track is standard hoist steel rail spare, the track is laid in the construction barricade outside, the track has two and parallel arrangement, and the interval is not less than 7.5 meters between the track, and arbitrary track is not less than 1.5 meters apart from the construction barricade outside. The car body is provided with a lifting point and a ground anchor fixing pull rope on the periphery, one end of the ground anchor fixing pull rope is connected with the ground, and the other end of the ground anchor fixing pull rope is fixedly connected with the car body through the lifting point. The number of the lifting points and the number of the ground anchor fixing pull ropes are not less than 6. The utility model provides a template operating system is used in construction of high gradual change retaining wall, includes operation platform truck, a plurality of template, adjustable bolt and adjustable branch, the template sets up in operation platform truck bottom and both sides, and wherein, the template that sets up in barricade one side is connected through adjustable branch with the automobile body, and operation platform truck bottom template passes through the template of adjustable bolted connection operation platform truck both sides. The operation system further comprises a construction operation platform, and the construction operation platform is arranged on the vehicle body. The construction operation platform is formed by paving a pattern panel on the upper side of the truss. The operation system further comprises safety guardrails, and the safety guardrails are arranged on the periphery of the construction operation platform.

According to the scheme design drawing, a standard crane steel rail part 1 (model: QU70) is adopted to lay a track with the distance from the outer side of the construction retaining wall to the center of the outer side steel rail by 1.5 meters, the distance between the centers of the two steel rails is ensured to be 7.5 meters, and the length of the track laid from the construction starting point is 45 meters; and after the tracks are laid, assembling the walking trolley on the flat tracks according to the drawing. The 6 wheel sets (see figure 7) are assembled on the 2 longitudinal main beams (see figure 8) by 8.8-grade M24X100 bolts (formed by welding 28 channel steel back to back and additional 16 channel steel). The wheel set is mainly assembled by a cylindrical tread wheel with the diameter phi of 500mm, a welded wheel box body, a rotating shaft with the diameter phi of 130mm and a pair of conical roller bearings with the model number of 33026. Then, respectively placing 2 longitudinal main beams of the assembled wheel set on two parallel rails and temporarily reinforcing the rails to ensure that the two longitudinal main beams are parallel and the error of the diagonal of the plane is less than or equal to 5 mm; then, 3 gantry main frames were assembled on the longitudinal main beams as shown in fig. 9 using 8.8-grade M24X100 bolts according to the drawing. After assembly, 3 groups of gantry main frames are ensured to be vertical and parallel to each other. Gantry main frame cross beams and two vertical supporting legs are all formed by welding 28 # channel steel back to back, the inner side vertical supporting legs and the upper cross beams are all formed by welding 16 # channel steel with auxiliary beams, and the outer side vertical supporting legs are not provided with the auxiliary beams due to the influence of construction space. The horizontal and vertical legs are connected by 8.8-grade M24X100 bolts through flanges. The corner part of the joint of the two ends of the cross beam and the vertical supporting leg is additionally provided with a reinforced steel plate. The support legs of the gantry main frame are provided with auxiliary beams at the inner sides of the retaining walls to be poured. The lower side of a cross beam of the gantry main frame is provided with a number 36I-steel of a traveling track of a 10-ton electric hoist, two ends of the I-steel are connected with vertical supporting legs through welding flanges by 8.8-level M24X100 bolts, and the upper side of the I-steel is connected with an upper cross beam through a connecting piece; assembling triangular trusses between the gantry main frames according to the drawing, as shown in figure 13, and transverse and vertical connecting pieces. The triangular truss is mainly formed by welding back-to-back 20 th channel steel and diagonal 12 th channel steel, and is shown in figure 13. The gantry frame is ensured to be vertical to the bottom longitudinal main beam during assembly; the truss of the upper side platform is assembled according to the drawing as shown in figure 2, two ends of the truss are connected with an upper cross beam of the gantry main frame through M20X100 bolts, and a delta 3mm pattern panel is paved on the truss. The safety guardrails with the height not less than 1.2 m are arranged around the platform. The front end of the platform is provided with a ladder stand; 2 chain traction electric hoists of 3 tons are respectively arranged at the end parts of the front and rear longitudinal beams of the trolley and are connected with the ground anchor to fix the traction trolley; in order to enhance the stability of the trolley, 8 ground anchor pull ropes are additionally arranged on the periphery of the trolley frame; 2 hoisting electric hoists of 10 tons are installed on a No. 36I-steel track on the upper part of each gantry main frame;

the inside and outside assembled large formwork of the retaining wall is assembled and constructed by using the gantry construction trolley as shown in figure 10. And assembling the standard templates into an integral large template with a required size by using M20X60 bolts according to construction requirements, additionally arranging a No. 12 channel steel back-to-back through long transverse and vertical movable keel at the back of the integral large template, and connecting and fixing the keel by using M20X 60. The standard template is 3000mm in length, is 1000mm, 2000mm and 3000mm in height, and is formed by welding strip steel with the thickness of 12mm and the width of 100mm and No. 10 vertical rib channel steel with a panel delta 6mm and vertical frames. The upper end of the assembled large template is provided with a hoisting ring. The lower end of the assembled large template is provided with a bolt positioning adjusting seat for adjusting the level and the height of the template. The rear sides of the inner and outer templates are provided with walking board tripods with different heights, which are shown in figure 6 and figure 12, and the walking boards are erected. A ladder stand is arranged on the side surface of the walking platform. Adjustable connecting pull rods are arranged at the upper part and the lower part of the rear side of the assembled template, as shown in figure 5, and are used for adjusting and positioning the inclination angle position of the template; and a split bolt is arranged between the inner and outer templates for fixing.

The utility model adopts the templates with standard dimensions, and assembles the required large templates on site by using the templates with standard dimensions according to the height dimension of the flowing water section wall. The novel formwork supporting trolley is convenient to install and disassemble, formwork supporting, concrete pouring, formwork disassembling and template transferring are carried out on a construction site.

The utility model uses less standard templates, uses a one-step assembly formed road and bridge construction track formwork supporting trolley to assemble the assembled large templates with required specifications on site to the designed height and length. The horizontal keel and the vertical keel of the assembled large formwork are movable keels, and the keels are made of standard sectional materials. The transverse keel is connected with the template and the vertical keel is connected with the transverse keel through bolts, and the standard module templates are connected through bolts. The upper end of the assembled large template is provided with a hoisting ring, namely the middle position is one, and the distance between the middle position and the two sides is 1 respectively. The lower end of the assembled large template is uniformly provided with a bolt positioning adjusting seat. The rear side of the template is provided with walking platforms with different heights, and the side of the walking platform is provided with a crawling ladder. The main structure of the formwork supporting trolley is as follows: the bottom is provided with a longitudinal beam which is made of section steel. A group of track traveling wheels are arranged on the lower side of each longitudinal beam, and traveling traction rings are arranged at two ends of each longitudinal beam. Gantry lifting frames are uniformly arranged on the upper sides of the longitudinal beams, each gantry lifting frame is provided with an electric hoist, the gantry lifting frames can transversely walk, and the lifting height can be designed according to requirements. The portal frames are connected through the section steel components by bolts, and the top end of the trolley is provided with a construction operating platform. Chain traction electric hoists are respectively arranged at the front and the rear of the trolley to complete the template transfer line production of the formwork supporting trolley. When the formwork supporting trolley works, 6 lifting points are totally arranged, and the large formwork on the inner side and the outer side of the retaining wall is lifted. After the trolley walks in place, ground anchor stabilizing pull ropes are arranged around the trolley frame to strengthen the balance and stability of the trolley during pouring construction operation. Each side template of the retaining wall is connected with the trolley by using an adjustable supporting rod, the transverse inclination angle of the template is adjusted, and the bottom edge height and the longitudinal horizontal dimension of the template are adjusted by adopting an adjustable bolt adjusting seat at the lower end of the template. The trolley top operation platform is formed by paving a pattern panel on the upper side of a truss, and safety guardrails are arranged on the periphery of the platform;

1. according to the construction requirement and the actual paying-off of a construction site, positioning and laying a trolley walking track according to a line;

2. and after the track is laid, assembling the walking trolley on the flat track according to the drawing. Firstly, the wheel assemblies are respectively assembled on the two longitudinal main beams by bolts. Then, placing the longitudinal main beam of the assembled wheel assembly on a track and temporarily reinforcing the longitudinal main beam to ensure that the two longitudinal beams are parallel and the error of the diagonal of the plane is less than or equal to 5 mm;

3. several gantry main frames are assembled by bolts according to drawings. And each corner at the upper end of the gantry is provided with a reinforcing steel plate which is connected by bolts. The support legs of the gantry main frame are provided with auxiliary beams at the inner sides of retaining walls to be poured;

4. assembling a transverse and vertical connecting component and a diagonal draw bar between the gantry main frames to ensure that the gantry frame is vertical to the bottom longitudinal main beam;

5. and installing a top platform truss, connecting two ends of the top platform truss with the trolley frame through bolts, and paving a pattern panel on the truss. The safety guardrails with the height not less than 1.2 meters are arranged around the platform. The front end of the platform is provided with a ladder stand;

6. chain type traction electric hoists are arranged at the end parts of the front and rear longitudinal beams of the trolley and are connected with the ground anchor to fix the traction trolley;

7. in order to enhance the stability of the trolley, 8 ground anchor pull ropes are additionally arranged on the periphery of the trolley frame;

8. 2 lifting electric hoists with 10 tons are arranged on the upper part of each gantry main frame;

9. and assembling the inner and outer assembled large formwork of the retaining wall by using a gantry construction trolley. Assembling basic standard templates into an integral large template with required size according to construction requirements, connecting the templates among the standard blocks by using bolts, and additionally arranging transverse and vertical movable keels at the rear side of the assembled large template, wherein the keels are formed by steel section back to back. The transverse keel and the template, and the vertical keel and the transverse keel are connected through bolts, and the upper end of the assembled large template is provided with a hoisting ring. The lower end of the assembled large template is provided with a bolt positioning adjusting seat for adjusting the level and height of the template. The rear side of the template is provided with walking platforms with different heights, and the side of the walking platform is provided with a crawling ladder.

10. Adjustable connecting pull rods are arranged at the upper part and the lower part of the rear side of the assembled template and are used for adjusting and positioning the inclination angle position of the template;

11. the assembled large formwork is provided with a split bolt for fixing.

The formwork operation trolley and the operation system for the construction of the retaining wall with gradually changed height provided by the embodiment of the application are described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core idea; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

As some terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. The present specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, that a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The following description is of the preferred embodiment for carrying out the present application, but is made for the purpose of illustrating the general principles of the application and is not to be taken in a limiting sense. The scope of the present application is to be construed in accordance with the substance defined by the following claims.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article of commerce or system in which the element is comprised.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, but rather is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims (10)

1. The utility model provides a high gradual change retaining wall construction is with template operation platform truck which characterized in that, the operation platform truck includes: the device comprises a vehicle body, a longitudinal beam, a track travelling wheel, a traction ring and a gantry hoisting frame; the longitudinal beams are arranged at the bottom of the vehicle body in parallel, and a group of track traveling wheels is uniformly arranged on the lower side of each longitudinal beam; the track traveling wheels are arranged on the track; traction rings are arranged at two ends of the vehicle body, and a gantry lifting frame is arranged at the top of the vehicle body; and an electric hoist which travels transversely is arranged on the gantry lifting frame and is connected with the traction ring.

2. The mobile workbench according to claim 1, wherein said gantry crane comprises a cross member and two vertical legs, wherein said two vertical legs are arranged parallel to each other, both ends of said two vertical legs are connected to the ground and the cross member respectively, and said vertical legs are arranged perpendicular to the cross member.

3. The operation trolley according to claim 2, wherein I-shaped steel is arranged on the lower side of the cross beam, the electric hoist capable of walking transversely is arranged on the I-shaped steel, two ends of the I-shaped steel are connected with the two vertical supporting legs through welding flanges, and the upper side of the I-shaped steel is connected with the cross beam through a connecting piece.

4. The operation trolley according to claim 1, wherein the rails are standard crane rail members, the rails are laid on the outer side of the construction retaining wall, the two rails are arranged in parallel, the distance between the rails is not less than 7.5 m, and the distance between any one rail and the outer side of the construction retaining wall is not less than 1.5 m.

5. The work trolley according to claim 1, wherein a lifting point and a ground anchor fixing rope are provided around the trolley body, one end of the ground anchor fixing rope is connected to the ground, and the other end of the ground anchor fixing rope is fixedly connected to the trolley body through the lifting point.

6. A service trolley according to claim 5 wherein the lifting points and earth anchor stabilising cables are not less than 6 in number.

7. A formwork operation system for construction of a highly gradient retaining wall, comprising the operation trolley of any one of claims 1 to 6, wherein the operation system further comprises a plurality of formworks, adjustable bolts and adjustable support rods, the formworks are arranged at the bottom and two sides of the operation trolley, wherein the formwork arranged at one side of the retaining wall is connected with the trolley body through the adjustable support rods, and the formwork at the bottom of the operation trolley is connected with the formworks at two sides of the operation trolley through the adjustable bolts.

8. The work system of claim 7, further comprising a construction work platform disposed on the vehicle body.

9. The work system of claim 8, wherein said construction work platform is constructed by laying pattern panels on the upper side of a truss.

10. The work system of claim 9, further comprising a safety fence disposed around the construction work platform.

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