Movable steel support for foundation pit construction of engineering adjacent to railway tunnel

Abstract

The utility model relates to a movable steel support for foundation pit construction of an adjacent railway tunnel project, which comprises a steel support body, the steel support body is hung on a main beam through a vertical driving device, the vertical driving device realizes the height lifting of the steel support body, a transverse horizontal driving device is arranged on the main beam, and the transverse horizontal driving device is connected with the main beam. The transverse horizontal driving device realizes transverse horizontal movement of the steel support body; longitudinal horizontal driving devices are connected to the two sides of the main beam correspondingly and achieve longitudinal translation of the steel support body, and a main beam height adjusting device is arranged between the longitudinal horizontal driving devices and the main beam and used for adjusting the hoisting height between the longitudinal horizontal driving devices and the main beam. A jacking and extending device is arranged at the end of one side of the steel support body, and the jacking and extending device achieves fixing and unlocking after the steel support body is in place. The utility model has the advantages that the construction process is simplified, the investment of large-scale mechanical equipment and personnel is reduced, the construction safety risk is reduced, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to adjacent railway tunnel engineering construction equipment technical field, concretely relates to a kind of adjacent railway tunnel engineering foundation pit construction's mobile steel support. BACKGROUND

[0002] Adjacent railway tunnel engineering foundation pit construction has always had the characteristics of long construction period and high safety risk.

[0003] 1) adjacent railway tunnel engineering foundation pit construction, using traditional inner support installation mode needs to use large hoisting equipment, there are large hoisting machinery high frequency of use, steel support installation cycle long problem, greatly increase the large mechanical hoisting process equipment overturning invasion limit safety risk, serious may cause contact network fuse, line interruption, train derailment and other safety accidents, greatly influence railway traffic safety.

[0004] 2) adjacent railway tunnel engineering foundation pit construction uses large mechanical equipment, needs to fill in blockage plan, temporary camp construction plan according to business line construction safety management regulation respectively, according to the requirement of railway bureau using large mechanical equipment needs to execute "one machine one person" safety protection and "big machine dispatching sheet" system, needs to set up protector before daily operation and sign large mechanical dispatching sheet and check the equipment name, quantity, model, overturning distance and operator of the day construction, needs to be signed by multiple parties and approved before construction, construction procedure is very complicated, and manual demand is large.If there is other situation such as filling in equipment, personnel content and so on not consistent with site or construction plan omits construction machinery, then cannot carry out construction operation, easily cause construction period to be extended.

[0005] 3) according to traditional foundation pit inner support installation mode needs to use large hoisting equipment, there are many safety hazards and potential dangers in the installation process of steel support, slightly operate carelessly or communication is not smooth, very likely cause hoisting injury, fall from a height and object strike and other safety accidents, construction risk is big.

[0006] Therefore, how to safely and efficiently carry out adjacent railway tunnel engineering foundation pit construction has been a technical problem to be solved for a long time. SUMMARY

[0007] The utility model discloses a mobile steel support of adjacent railway tunnel engineering foundation pit construction, which is set between crown beams of foundation pit enclosure structures, and comprises a steel support body, a vertical driving device, a horizontal driving device, a main beam height adjusting device and a top extension device.

[0008] The utility model discloses a mobile steel support of adjacent railway tunnel engineering foundation pit construction, which is set between crown beams of foundation pit enclosure structures, and comprises a steel support body, a vertical driving device, a horizontal driving device, a main beam height adjusting device and a top extension device.

[0009] A mobile steel support of adjacent railway tunnel engineering foundation pit construction, characterized in that the mobile steel support is erected between crown beams of foundation pit enclosure structures, and comprises a steel support body, a vertical driving device, a horizontal driving device, a main beam height adjusting device and a top extension device.

[0010] The horizontal driving device comprises a trolley track and a mobile trolley, the trolley track is arranged along the longitudinal direction of the foundation pit, the mobile trolley is erected on the trolley track and can move on the trolley track, and the main beam height adjusting device is arranged on the mobile trolley.

[0011] The mobile trolley is provided with a trolley steel roller and a trolley driving motor, the trolley driving motor drives the trolley steel roller to roll through gear engagement, so that the mobile trolley moves along the trolley track.

[0012] The transverse horizontal driving device comprises an electric hoist arranged on the main beam, and the electric hoist drives the electric hoist roller suspended below the main beam to move along the main beam through a driving motor.

[0013] The vertical driving device comprises an electric hoist arranged on the main beam, and the electric hoist drives the steel wire rope and the reel to rotate to wind or unwind the steel wire rope through a lifting motor, and the bottom of the steel wire rope is provided with a lifting hook, and the steel support body is arranged on the lifting hook.

[0014] The main beam height adjusting device comprises a plurality of adjusting blocks, and the lifting height between the longitudinal horizontal driving device and the main beam is adjusted through the superposition of the adjusting blocks.

[0015] The adjusting blocks are connected through high-strength bolts.

[0016] The top stretching device comprises a jack, and the two ends of the jack are welded to the steel support body and the movable leg steel plate respectively, the movable leg steel plate is stretched out or retracted to the direction of the crown beam on one side under the driving of the jack, and the movable leg steel plate can be fixed with the crown beam.

[0017] The utility model discloses the advantages are:

[0018] (1) the whole process of moving the steel support to move, install and disassemble is operated by using a remote controller, and the installation and disassembly operation is simple, fast, time-saving and energy-efficient.

[0019] (2) the steel support is assembled outside the safety area of the railway range and moved to the railway foundation pit position for installation, and the construction process does not need to use large hoisting equipment and special operation personnel, does not need to set up "one machine one person" safety protection and sign "large machine dispatching order" according to large machinery, avoids the safety risk of large machinery construction in the operating line range, and the construction procedure is correspondingly simple.

[0020] (3) the installation height of the steel support mechanism is lower than that of the traditional large machinery hoisting height, the equipment overturning distance is small, the influence on the railway is greatly reduced, and the railway driving safety is ensured.

[0021] (4) the installation and disassembly process of the steel support is controlled by a remote controller, the labor safety risk of the installation and disassembly process is reduced, and the labor safety risk of the installation and disassembly process is reduced. DRAWINGS

[0022] Figure 1 is the sectional view of the utility model;

[0023] Figure 2 is the structural schematic view of the longitudinal horizontal driving device in the utility model;

[0024] Figure 3It is the structure schematic view of the horizontal driving device in the utility model;

[0025] Figure 4 It is the structure schematic view of the vertical driving device in the utility model;

[0026] Figure 5 It is the structure schematic view of the height adjusting device of the main beam in the utility model;

[0027] Figure 6 It is the structure schematic view of the top stretching device in the utility model. Specific implementation

[0028] The features and other related features of the utility model are further explained in detail in the following by examples combined with the drawings, so as to facilitate the understanding of the same industry technical personnel:

[0029] As Figures 1-6 shown, the various reference numerals in the drawing respectively represent: longitudinal horizontal driving device 1, horizontal driving device 2, vertical driving device 3, height adjusting device of main beam 4, top stretching device 5, steel support body 6;

[0030] Trolley track 1.1, moving trolley 1.2, trolley steel roller 1.2.1, trolley driven gear 1.2.2, trolley roller 1.2.3, trolley driving motor 1.2.4, motor driving gear 1.2.5, trolley and height adjusting device connection reserved hole 1.2.6;

[0031] Shaped steel main beam 2.1, electric hoist 2.2, driving motor 2.2.1, electric hoist roller 2.2.2, bolt gasket 2.2.3, electrical device 2.2.4;

[0032] Shaped steel main beam 3.1, electric hoist 3.2, lifting hook 3.2.1, conical rotor lifting motor 3.2.2, nameplate 3.2.3, steel wire rope and drum 3.2.4, speed reducer 3.2.5, drum assembly 3.2.6, electric trolley 3.2.7;

[0033] Adjusting block 4.1, adjusting block 4.2, adjusting block 4.3, high-strength bolt connection 4.4, anti-derailing device 4.5, steel wire rope 4.6, steel support 4.7, pre-buried bracket steel plate 4.8;

[0034] Jack 5.1, oil inlet 5.2, jack and steel pipe weld 5.3, oil outlet 5.4, jack and movable leg weld 5.5.

[0035] As Figure 1 shown, the mobile steel support adjacent to the railway tunnel engineering foundation pit construction in the embodiment comprises a steel support body, which is arranged between the corbel beams of the foundation pit enclosure structure, and the movement of the steel support body can be realized.

[0036] Specifically, the longitudinal translation of the steel support body 6 is achieved by setting the longitudinal horizontal driving device 1 on the top of the crown beam, the height control of the steel support body 6 is achieved by setting the vertical driving device 3 on the top of the horizontal device, the adjustment is made according to the need of the lifting height by the main beam height adjusting device 4 between the horizontal driving device 1 and the vertical driving device 3, the lateral translation of the steel support body 6 is achieved by the lateral horizontal driving device 2 on the main beam, the installation and removal of the steel support body 6 are remotely controlled to be in place, and the fixing and unlocking of the steel support body 6 are achieved by the oil feeding and returning of the top extension device 5.

[0037] As shown in Figure 2 , the longitudinal horizontal driving device 1 comprises a trolley track 1.1 and a moving trolley 1.2. Each trolley track 1.1 is composed of two steel rails, and the two steel rails are arranged on the crown beam along the longitudinal direction of the foundation pit. The moving trolley 1.2 comprises four trolley steel rollers 1.2.1, the trolley steel roller 1.2.1 at the rear is fixedly welded with a trolley driven gear 1.2.2, a trolley roller shaft 1.2.3 is welded to connect the front wheel and the rear wheel of the trolley, respectively, a trolley driving motor 1.2.4 drives a motor driving gear 1.2.5 to meshingly transmit to drive the trolley driven gear 1.2.2 welded on the rear driven trolley steel roller 1.2.1, so that the moving trolley 1.2 can move along the trolley track 1.1, thereby enabling the steel support body 6 loaded on the longitudinal horizontal driving device 1 to move along the longitudinal direction of the foundation pit.

[0038] As shown in Figure 3 , the lateral horizontal driving device 2 comprises a steel main beam 2.1 and an electric hoist 2.2, the steel main beam 2.1 is connected by using a finished steel product according to the actual length on site, and the steel main beam 2.1 is a cross beam across the crown beam of the foundation pit, which is arranged along the transverse direction of the foundation pit. Two electric hoists 2.2 are arranged on each steel main beam 2.1, respectively, the electric hoist 2.2 drives the electric hoist roller 2.2.2 suspended on the top of the lower flange plate of the steel main beam 2.1 to move along the transverse direction of the steel main beam 2.1, so that the steel support body 6 can move horizontally. In this embodiment, the electrical device 2.2.4 for controlling the driving motor 2.2.1 is integrated and installed on the steel main beam 2.1 by means of bolted joint 2.2.3.

[0039] As shown in Figure 4 , the vertical driving device 3 comprises a steel main beam 3.1 (the steel main beam 3.1 is a cross beam across the crown beam of the foundation pit) and an electric hoist 3.2, the steel main beam 3.1 is arranged along the vertical direction of the foundation pit, and the electric hoist 3.2 is arranged on the top of the steel main beam 3.1. The electric hoist 3.2 drives the electric hoist roller 3.2.2 suspended on the top of the steel main beam 3.1 to move along the vertical direction of the steel main beam 3.1, so that the steel support body 6 can move vertically. Figure 3The steel support body 6 is lifted by the electric hoist 3.2 composed of the steel main girder 3.1 and the electric hoist 3.2, the electric hoist 3.2 is driven by the cone rotor lifting motor 3.2.2 through the speed reducer 3.2.5 to rotate the steel wire and the reel 3.2.4, the hook 3.2.1 fixed at the bottom of the steel wire and the steel support body 6 on the hook 3.2.1 are lifted to realize the movement of the steel support and the vertical movement.

[0040] As shown in Figure 5 The main girder height adjusting device 4 includes three types of adjusting blocks 4.1, 4.2 and 4.3, the adjusting block 4.1 is connected with the trolley, the adjusting block 4.2 is the intermediate block and can be stacked with each other, the adjusting block 4.3 is connected with the main girder, the high-strength bolt connection 4.4 is used for assembling the adjusting blocks, and the installation height of the steel support is adjusted by adjusting the height of the adjusting blocks.

[0041] As shown in Figure 6 The top stretching device is composed of the jacks 5.1 welded at both ends of the steel support body 6 and the movable leg steel plate, the jack and the steel pipe weld 5.3 is formed between one end of the jack 5.1 and the steel support body 6, and the jack and the movable leg weld 5.5 is formed between the other end of the jack 5.1 and the movable leg steel plate. The oil inlet 5.2 and the oil outlet 5.4 of the jack 5.1 are used for the fixing and unlocking of the steel support body 6 after being in place. In the embodiment, the embedded bracket steel plate 4.8 is arranged on the inner side of the crown beam, and the embedded bracket steel plate 4.8 can be connected with the movable leg steel plate.

[0042] Through the joint work of the longitudinal horizontal driving device 1, the transverse horizontal driving device 2, the vertical driving device 3, the main girder height adjusting device 4 and the top stretching device 5, a new type of movable steel support for the adjacent railway tunnel engineering foundation pit construction is formed, which has the characteristics of remote control installation operation, simplified construction process, reduced large-scale mechanical equipment and personnel investment, reduced construction safety risk and improved construction efficiency.

[0043] Although the above embodiment has been described in detail with reference to the drawings, those skilled in the art can realize that various improvements and changes can be made to the utility model without departing from the scope defined by the claims, and therefore, detailed description is not given here.

Claims

1. A mobile steel support for construction of a foundation pit of a railway tunnel, characterized in that: The mobile steel support is arranged between the corbel beams of the foundation pit enclosure structure, and comprises a steel support body, which is hoisted on a main beam by a vertical driving device, the vertical driving device realizes height lifting of the steel support body, a transverse horizontal driving device is arranged on the main beam, and the transverse horizontal driving device realizes transverse horizontal movement of the steel support body; the main beam is arranged across the corbel beams, and longitudinal horizontal driving devices are respectively connected to two sides of the main beam, the longitudinal horizontal driving devices realize longitudinal translation of the steel support body, main beam height adjusting devices are arranged between the longitudinal horizontal driving devices and the main beam, the main beam height adjusting devices are used for adjusting hoisting height between the longitudinal horizontal driving devices and the main beam, and a top extension device is arranged at one side end of the steel support body, and the top extension device realizes fixing and unlocking of the steel support body after being in place.

2. The mobile steel support for the foundation pit construction of the adjacent railway tunnel engineering according to claim 1, characterized in that: The longitudinal horizontal driving device comprises a trolley track and a mobile trolley, the trolley track is arranged along the longitudinal direction of the foundation pit, the mobile trolley is arranged on and can move on the trolley track, and the main beam height adjusting device is arranged on the mobile trolley.

3. The mobile steel support for the construction of a foundation pit of a railway tunnel according to claim 2, characterized in that: The mobile trolley comprises a trolley steel roller and a trolley driving motor, the trolley driving motor drives the trolley steel roller to roll through gear engagement, so that the mobile trolley moves along the trolley track.

4. The mobile steel support for the construction of a foundation pit of a railway tunnel according to claim 1, characterized in that: The transverse horizontal driving device comprises an electric hoist arranged on the main beam, the electric hoist drives an electric hoist roller suspended below the main beam to move along the main beam in the transverse direction through a driving motor.

5. The mobile steel support for the construction of a foundation pit of a railway tunnel according to claim 1, characterized in that: The vertical driving device comprises an electric hoist arranged on the main beam, the electric hoist drives a steel wire rope and a reel to rotate to wind or unwind the steel wire rope, a hook is arranged at the bottom of the steel wire rope, and the steel support body is arranged on the hook.

6. The mobile steel support for the construction of a foundation pit of a railway tunnel according to claim 1, characterized in that: The main beam height adjusting device comprises a plurality of adjusting blocks, and the hoisting height between the longitudinal horizontal driving device and the main beam is adjusted through stacking of the adjusting blocks.

7. The mobile steel support for the construction of a foundation pit of a railway tunnel according to claim 6, characterized in that: High-strength bolts are used to connect the adjusting blocks.

8. The mobile steel support for the construction of a foundation pit of a railway tunnel according to claim 1, characterized in that: The top extension device comprises a jack, two ends of the jack are respectively welded to the steel support body and a movable leg steel plate, the movable leg steel plate is driven by the jack to extend or retract to the direction of the corbel beam on one side, and the movable leg steel plate can be fixed to the corbel beam.

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