CN214091900U

CN214091900U - Self-propelled hydraulic inverted arch trestle

Info

Publication number: CN214091900U
Application number: CN202023088330.0U
Authority: CN
Inventors: 杨志华; 申志晔; 袁硕; 陈丽君; 张弛
Original assignee: Luoyang Tengyu Tunnel Machinery Co ltd
Current assignee: Luoyang Tengyu Tunnel Machinery Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-31
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a self-propelled hydraulic pressure invert landing stage relates to tunnel or underground works concrete construction technical field, improves the engineering time and reduces artifical intensity of labour technical problem when solving the landing stage construction, the utility model discloses a landing stage girder, bridge floor and guardrail board, landing stage girder lies in the bridge floor below, the guardrail board welds in the left and right sides both ends of girder, invert lining landing stage front and back are equipped with preceding access and back access respectively, preceding access and back access are connected with hydraulic system and hydraulic system respectively, hydraulic system rear side is equipped with preceding landing leg and well landing leg in proper order, the front side is preceding access, preceding landing leg and well landing leg are close to preceding access, hydraulic system below is equipped with the walking landing leg, the back access lies in between hydraulic system and the walking landing leg, the front side of walking landing leg is equipped with the back landing leg, the back landing leg is close to the back access; the method is used for the trestle structure, is flexible in application, is suitable for complex working conditions, has the advantages of being suitable for span change, convenient to transport and fast to assemble after one-time construction is finished.

Description

Self-propelled hydraulic inverted arch trestle

Technical Field

The utility model relates to a tunnel or underground works concrete construction technical field, more specifically relate to tunnel or underground concrete self-propelled hydraulic pressure invert landing stage technical field for landing stage structure uses in a flexible way, is applicable to complicated operating mode.

Background

The traditional construction link of the inverted arch of the tunnel in China can not realize full mechanical operation, and the carrying, assembling and disassembling work and a large amount of manual repeated operation exist in each construction cycle. On one hand, the labor intensity of workers is high, on the other hand, construction interruption is caused, continuous operation cannot be formed, the construction efficiency is low, the construction progress is influenced, and due to the fact that a large number of workers are repeatedly assembled and disassembled, the positioning accuracy of an inverted arch construction template is easily reduced, and the inverted arch construction quality is reduced.

With the progress of tunnel construction technology in China, the requirement on mechanization of inverted arch construction is higher and higher, and although some manufacturers can provide mechanical inverted arch trestles at present, the disadvantages of complicated trestle structure, large investment, heaviness, inflexible operation, low safety performance and the like exist, so that the tunnel construction technology cannot be popularized in a large area. When the tunnel is constructed, the bottom arc of the excavated section is called an inverted arch; in the construction process of the tunnel inverted arch part, an inverted arch trestle needs to be built on an inverted arch excavation surface so as to communicate the excavation surface at the front end of the tunnel with a filling surface channel at the rear end of the tunnel, wherein the filling surface is a term of concrete construction of the inverted arch, and the inverted arch trestle enables the tunnel excavation to be outwards discharged slag and materials to be transported into the tunnel without being influenced by the inverted arch construction, so that the continuous and simultaneous implementation of the inverted arch concrete construction and the tunnel excavation is ensured. But the transport of parts of the material can be done using the trestle itself.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve current landing stage and realize that the construction of whole width of cloth invert once finishes, reduce engineering time and reduce artifical intensity of labour's problem, the utility model provides a self-propelled hydraulic pressure invert landing stage.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

self-propelled hydraulic pressure invert landing stage, including landing stage girder, bridge floor and guardrail board, the landing stage girder is located the bridge floor below, the guardrail board weld in both ends about the girder, the bridge floor is surrounded by the inboard of guardrail board, hydraulic pressure invert landing stage front and back is equipped with preceding access and back access respectively, preceding access and back access dock with the bridge floor respectively, preceding access and back access are connected with hydraulic oil system and hydraulic oil system respectively, hydraulic oil system rear side is equipped with preceding landing leg and well landing leg in proper order, and the front side is preceding access, preceding landing leg and well landing leg are close to preceding access, the hydraulic oil system below is equipped with the walking landing leg, back access is located hydraulic oil system with between the walking landing leg, the front side of walking landing leg is equipped with the back landing leg, the back landing leg is close to the back access.

Further, two inverted arch template hangers are mounted at the middle position close to the hydraulic inverted arch trestle, one of the inverted arch template hangers is located at the front side of the hydraulic inverted arch trestle, and the other inverted arch template hanger is located at the rear side of the hydraulic inverted arch trestle.

Further, the two inverted arch template hangers are symmetrical about the center of gravity on the hydraulic inverted arch trestle.

Further, the upper sides of the two inverted arch template hangers and the middle supporting legs are in sliding fit with the upper sides of the guardrail plates.

Further, the front supporting leg, the middle supporting leg, the inverted arch template hanging frame and the rear supporting leg are of hydraulic driving up-down telescopic structures.

Further, an oil hydraulic rod is arranged between the oil hydraulic system and the front approach bridge, and the oil hydraulic rod is connected with the oil hydraulic system and the front approach bridge; and a hydraulic rod is arranged between the hydraulic system and the rear approach bridge and is connected with the hydraulic system and the rear approach bridge.

The utility model has the advantages as follows:

1. oil hydraulic stem and hydraulic stem can stretch out and draw back the height of leading bridge and back approach before adjusting, and the hydraulic stem extension when not using the landing stage shortens when using the landing stage. Preceding access bridge and back access bridge are connected with hydraulic system and hydraulic system respectively, hydraulic system rear side is equipped with preceding landing leg and well landing leg in proper order, and the front side is preceding access bridge, preceding landing leg and well landing leg, and the hydraulic system below is equipped with walking landing leg, and back access bridge is located hydraulic system with between the walking landing leg, the front side of walking landing leg is equipped with the back landing leg, and the back landing leg is close to the back access bridge, and preceding access bridge and back access bridge pass through hydraulic system and adjust, and watering lorry or excavator can freely move on the landing stage.

2. Preceding landing leg, well landing leg and back landing leg are hydraulic drive and the not co-altitude of upper and lower flexible regulation landing stage, and before, when the back landing leg shrink, well landing leg plays supporting role, and the walking landing leg rolls, and landing stage moving as a whole when removing a position, well landing leg shrink, the landing leg extension continues the construction around, has improved landing stage operating duration, has increased the efficiency of construction and has reduced artifical intensity of labour.

3. When freight train or dig the car in the work progress when landing stage bridge floor position, landing stage focus position does not have the support and can presses disconnected landing stage, the invert template stores pylon extends downwards, increases the reliability of landing stage life and construction.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the structure of the front view direction of the present invention;

fig. 3 is a schematic view of the top view structure of the present invention;

fig. 4 is a schematic view of the internal structure of the present invention in the front view direction;

fig. 5 is a schematic diagram of the left-side view direction internal structure of the present invention.

Reference numerals: 1-main beam, 2-bridge deck, 3-front approach bridge, 4-hydraulic system, 41-hydraulic rod, 5-front support leg, 6-middle support leg, 7-inverted arch template hanger, 8-inverted arch template hanger, 9-rear support leg, 10-hydraulic system, 101-hydraulic rod, 11-walking support leg, 12-rear approach bridge and 13-guardrail plate.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.

The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", "front" and "rear" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the scope of the present invention may be considered as the scope of the present invention.

Example 1

As shown in fig. 1-5, this embodiment provides a self-propelled hydraulic inverted arch trestle, which includes a trestle girder 1, a bridge deck 2, a front approach bridge 3, an oil hydraulic system 4, a front support leg 5, a middle support leg 6, an inverted arch template hanger 7, an inverted arch template hanger 8, a rear support leg 9, a hydraulic system 10, a walking support leg 11, a rear approach bridge 12, and a guardrail plate 13, wherein the trestle girder 1 is located below the bridge deck 2, the guardrail plate 13 is welded at the left and right ends of the girder 1, the bridge deck 2 is surrounded by the inner side of the guardrail plate 13, the front and rear ends of the hydraulic inverted arch trestle are respectively provided with a front approach bridge 3 and a rear approach bridge 12, the front approach bridge 3 and the rear approach bridge 12 are respectively butted with the bridge deck 2, the front approach bridge 3 and the rear approach bridge 12 are respectively connected with the oil hydraulic system 4 and the hydraulic system 10, the rear side of the oil hydraulic system 4 is sequentially provided with the front support leg 5 and the middle support leg 6, the front side is preceding approach 3, preceding landing leg 5 and well landing leg 6 are close to preceding approach 3, hydraulic system 10 below is equipped with walking landing leg 11, back approach 12 is located hydraulic system 10 with between the walking landing leg 11, the front side of walking landing leg 11 is equipped with back landing leg 9, back landing leg 9 is close to back approach 12.

Be close to two invert template stores pylons are installed to the intermediate position of hydraulic pressure invert trestle, invert template stores pylon 7 is close to the front side of hydraulic pressure invert trestle, invert template stores pylon 8 is close to the rear side of hydraulic pressure invert trestle, invert template stores pylon basis it is different to face upward the gravity that hydraulic pressure invert trestle received different positions or two have on the hydraulic pressure invert trestle invert template stores pylon about the focus position symmetry on the hydraulic pressure invert trestle.

The upper sides of the inverted arch template hanging frame and the middle supporting leg 6 are in sliding fit with the upper side of the guardrail plate 13, and the front supporting leg 5, the middle supporting leg 6, the inverted arch template hanging frame and the rear supporting leg 9 are of hydraulic driving up-down telescopic structures.

An oil hydraulic rod 41 is arranged between the oil hydraulic system 4 and the front approach bridge 3, the oil hydraulic rod 41 is connected with the oil hydraulic system 4 and the front approach bridge 3, a hydraulic rod 101 is arranged between the hydraulic system 10 and the rear approach bridge 12, and the hydraulic rod 101 is connected with the hydraulic system 10 and the rear approach bridge 12.

Example 2

The hydraulic system 4 of self-propelled hydraulic pressure inverted arch landing stage (hereinafter referred to as landing stage for short) drives the hydraulic stem 41 to stretch out and draw back, hydraulic system 10 drives hydraulic stem 101 to stretch out and draw back, and the height of preceding approach 3 and back approach 12 is adjustable to the flexible of hydraulic stem like this, and the hydraulic stem extension when not using the landing stage, the hydraulic stem shortens when using the landing stage.

The front supporting leg 5, the middle supporting leg 6 and the rear supporting leg 9 are hydraulically driven and extend up and down to adjust different heights of the trestle, when the front supporting leg 5 and the rear supporting leg 9 are contracted, the middle supporting leg 6 plays a supporting role, the walking supporting leg 11 rolls (a roller rolls), the trestle integrally moves, when the trestle moves to a certain position, the middle supporting leg 6 is contracted, the front supporting leg 5 and the rear supporting leg 9 are expanded to continue construction, the operation time of the trestle is improved, the construction efficiency is improved, when the hydraulic inverted arch trestle needs to move in the left-right direction, the front supporting leg 5 and the rear supporting leg 9 are expanded, the middle supporting leg 6 is contracted, the expansion length of the front supporting leg 5 and the rear supporting leg 9 is larger than that of the walking supporting leg 11, the trestle moves left and right, the trestle moves in a way that the lower end of the trestle is provided with other hydraulic systems (not shown in the figure) to drive guide rails (I-shaped steel rails in the left-right direction of the front supporting leg 5 and the rear supporting leg 9, not shown) slides or moves.

Freight train or dig the car in the work progress when 2 positions on trestle bridge floor, trestle focus position does not have the support and can presses disconnected trestle, inverted arch template stores pylon 7 or inverted arch template stores pylon 8 extend downwards, increase trestle life and the reliability of construction.

Example 3

Rear leg 9, walking landing leg 11 of hydraulic pressure invert trestle are located the concrete that has poured and solidified, preceding landing leg 5 is located ground unwatered part, and when walking landing leg 11 drive trestle removed, well landing leg 6 is in the extension state, 6 upsides of landing leg in the guardrail board 13 is relative slide, preceding landing leg 5 is close to ground unwatered part, extension of 5 lower extremes of preceding landing leg, well landing leg 6 shrink and slide to ground unwatered part re-extension, invert template stores pylon 7 and invert template stores pylon 8 downwardly extending, and other parts that do not pour on the ground are poured around the concrete that has poured and solidified when the tank car is on following back approach bridge 12 to bridge floor 2, and the tank car withdraws from the excavator behind the trestle and excavates concrete on bridge floor 2 to preceding approach bridge 3 along back approach bridge 12, to ground construction.

The hydraulic inverted arch trestle can automatically realize the movement operation in the front-back direction and the left-right direction, the main structure is a modularized assembly type, and the hydraulic inverted arch trestle has the characteristics of being suitable for span changing, convenient transportation, quick assembly and the like, the effective construction length is 10m, the maximum construction length of one cycle is 20m, the width of a hydraulic inverted arch trestle bridge channel is 3.6m, the inverted arch backfilling height is 2.3m, the gradients of the front and rear trestles are not more than 25%, the allowed maximum load is 60T, and the movement speed of the inverted arch lining trestle is less than 8 m/min.

The hydraulic inverted arch trestle can finish the one-time construction of the whole inverted arch by manually matching with mechanical slag removal, reinforcing steel bar binding, formwork erection and inverted arch pouring. Concrete is poured by a tank car through a chute, an inserted vibrating rod vibrates compactly, inverted arch backfilling construction is carried out after the strength of inverted arch concrete reaches design requirements, and a measuring pile is embedded in the center line of the backfilled top surface of the inverted arch.

Claims

1. Self-propelled hydraulic inverted arch trestle, including trestle girder (1), bridge floor (2) and guardrail board (13), trestle girder (1) is located bridge floor (2) below, guardrail board (13) weld in both ends about girder (1), bridge floor (2) are surrounded by the inboard of guardrail board (13), hydraulic inverted arch trestle front and back are equipped with preceding access (3) and back access (12) respectively, preceding access (3) and back access (12) dock with bridge floor (2) respectively, its characterized in that preceding access (3) and back access (12) are connected with hydraulic system (4) and hydraulic system (10) respectively, hydraulic system (4) rear side is equipped with preceding landing leg (5) and well landing leg (6) in proper order, the front side is preceding access (3), preceding landing leg (5) and well landing leg (6) are close to preceding access (3), the hydraulic system (10) is provided with walking legs (11) below, the rear approach bridge (12) is located between the hydraulic system (10) and the walking legs (11), the front side of the walking legs (11) is provided with rear legs (9), and the rear legs (9) are close to the rear approach bridge (12).

2. The self-propelled hydraulic inverted arch trestle of claim 1, wherein: be close to two invert template stores pylons (7,8), two are installed to the intermediate position of hydraulic pressure invert trestle one of them of invert template stores pylon (7,8) is located the front side of hydraulic pressure invert trestle, another is located the rear side of hydraulic pressure invert trestle.

3. The self-propelled hydraulic inverted arch trestle of claim 2, wherein: the two inverted arch formwork hangers (7,8) are symmetrical with respect to the position of the center of gravity on the hydraulic inverted arch trestle.

4. The self-propelled hydraulic inverted arch trestle of claim 2, wherein: the upper sides of the two inverted arch template hangers (7,8) and the middle supporting leg (6) are in sliding fit with the upper side of the guardrail plate (13).

5. A self-propelled hydraulic invert trestle according to claim 1 or 2, characterised in that: the front supporting legs (5), the middle supporting legs (6), the inverted arch template hangers (7,8) and the rear supporting legs (9) are of hydraulic driving up-down telescopic structures.

6. The self-propelled hydraulic inverted arch trestle of claim 1, wherein: an oil hydraulic rod (41) is arranged between the oil hydraulic system (4) and the front approach bridge (3), and the oil hydraulic rod (41) is connected with the oil hydraulic system (4) and the front approach bridge (3); a hydraulic rod (101) is arranged between the hydraulic system (10) and the rear approach bridge (12), and the hydraulic rod (101) is connected with the hydraulic system (10) and the rear approach bridge (12).