CN2298276Y

CN2298276Y - Combined load-carrying sliding backplate jacking lance structure

Info

Publication number: CN2298276Y
Application number: CN 97208959
Authority: CN
Inventors: 许宝根
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-08
Filing date: 1997-04-08
Publication date: 1998-11-25
Anticipated expiration: 2007-04-08

Abstract

The utility model relates to a combined load-carrying sliding guard plate jacking lance structure, which is used for overpass tunnel construction of the railway and the highway, and is composed of assembling a plurality of load-carrying sliding guard plates. Each load-carrying sliding guard plate body is composed of a sliding guard plate, a shifting beam, a spiral material outlet device and an oil roof. The shifting beam can be jacked by the oil roof and the sliding guard plate is jacked to glide along the shifting beam; after the lance structure body is assembled, the shifting beam and the sliding guard plate can be respectively jacked by the oil roof by that the frame bridge is served as a rear seat. The utility model has simple structure, small size, easy fabrication, and strong applicability, and is especially suitable for the construction of jacking frame bridge of the overpass tunnel of the railway and the highway; the passing speed limiting of train can be caused to be enhanced to more than 100 kilometers /h.

Description

Combined type load-bearing sliding shelling plate jacking shield structure body

The utility model belongs to the railway civil engineering and executes mouthful facility, is mainly used in the construction of Rail Highway grade separation tunnel jacking frame bridge.

I enclose on the railway line and mostly am at grade intersection with intersecting of urban road at present, along with development of Urban Traffic, this type of usual friendship all should change graded crossing into, be that highway passes through under railway, during construction, need rail track is built on stilts, excavate the roadbed under it, prefabricated frame bridge is headed into, frame bridge is as the railway line roadbed again, and trap for automobile passes through in framework, form the graded crossing of railway and highway, existing is special a kind of shallow girder made from the rail track overhead method, utilizes the track loop wheel machine that roof beam structure is placed on and records on the hole control pile of railway rail both sides, when frame width increases, because the lateral stability deficiency of shallow girder, can only adopt the transverse beam reinforcement means, but the speed of a motor vehicle that this moment, circuit allowed train to pass through can not surpass 45 highways/hour, can not satisfy the requirement of trunk railway rapid transit.

The purpose of this utility model provides the jacking of a kind of combined type load-bearing sliding shelling plate and follows the structure body, on it is positioned over before the frame bridge, partly arrange along top board and abutment wall, be frame bridge jacking open circuit, and can bear the huge load of train, thereby the speed that train is passed through reach 100 kilometers/hour or more than, so can satisfy the requirement of trunk railway rapid transit, solved the deficiency of existing construction equipment and method.

Narrate structure of the present utility model and jacking principle below in conjunction with accompanying drawing.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is an I-I view profile of the present utility model.

Fig. 3 is an II-II view profile of the present utility model.

See Fig. 1,2,3, the utility model comprises by a plurality of load-bearing sliding shelling plate bodies and combining, each load-bearing sliding shelling plate body comprises by sliding shelling plate (A) and trave lling girder (B) and forming that sliding shelling plate (A) includes oil top (1), top board (2), i beam muscle (3), side plate (4), limited block (5), nipper (6), connecting rod formations such as (7).Steel top board (2) front end is welded with nipper (6) and is convenient to sliding shelling plate (A) and can be easy to when advancing insert in the dirt bed; The bottom surface of top board (2) is weldering steel i beam muscle at regular intervals (3) laterally, passes to trave lling girder (B) with the intensity of enhancing top board (2) and with the train load that bears on the top board (2); The left and right sides of top board (2) is welded with steel side plate (4), has screw on the side plate (4) and connects use as adjacent sliding shelling plate (A); Top board (2) afterbody projection can advance (see figure 4) in order to bearer bar bridge formation (C) by built on frame bridge (C) top.In rear end, top board (2) below oil top (1) is housed, its oily footstock is fixed on the i beam muscle (3) by connecting rod (7), and oily push rod end can lean frame bridge (C) with sliding shelling plate (A) jacking; Below in i beam muscle (3) is welded with to lateral symmetry the limited block (5) of polylith, does longitudinal sliding motion with limit slippage backplate (A) along the slide plate (12) on the trave lling girder (B).Trave lling girder (B) includes oil top (8), i beam (9), upper cover plate (10), lower cover (11), slide plate (12), preceding tooth bar (13), soil output (14), driver (15), bearing support formations such as (16).Two steel i beams (9) and the upper and lower cover plate of steel (10,11) are welded into the trave lling girder (B) of square, vertically be welded with the steel slide plate (12) of band oil groove in the above on the two side ends symmetrically, on slide plate (12), do longitudinal sliding motion in order to sliding shelling plate (A); Front end at trave lling girder (B) is welded with preceding tooth bar (13), cuts when being beneficial to trave lling girder (B) jacking in the dirt bed; At trave lling girder (B) inner chamber front end soil output (14) and driver (15) are housed, and are fixed on the inner chamber of trave lling girder (B) by bearing support (16); On lower cover (11) middle part, have unearthed breach (E), so that the earth that soil output (14) is taken out of ejects from trave lling girder (B) inner chamber; In the rear end of trave lling girder (B) inner chamber oil top (8) is housed, oily footstock is fixed on the lower cover (11) of inner chamber, and oily push rod can lean frame bridge (C) with trave lling girder (B) jacking.

Narrate jacking principle of the present utility model below in conjunction with mode of occupation.

Fig. 4 installs and uses state diagram for the utility model.

Fig. 5 is state diagram after the utility model jacking.

See Fig. 4,5, frame bridge (C) and the supporting base (D) that is embedded on the frame bridge (C) are prefabricated, be positioned over the job site, the sliding shelling plate (A) of a plurality of load-bearing sliding shelling plate bodies is linked into an integrated entity with bolt, formed load-bearing sliding shelling plate jacking shield structure body, the supporting base (D) that each trave lling girder (B) rear end frame is placed on frame bridge (C) is gone up as a supporting-point, the front end frame of each trave lling girder (B) is placed on existing certain slope dirt bed to be dug as another supporting-point, this moment, whole shield structure body just can bear the heavy load of train, during work, at first start driver (15) and spiral discharging device (14) and start oil top (8) with each trave lling girder (B) respectively after the jacking, restore on oil top (8), spiral discharging device this moment (14) can be discharged the earth in the jack-in process, after trave lling girder (B) advances a process (about 0.5 meter), the oil top (1) that starts each sliding shelling plate (A) is with process of sliding shelling plate (A) jacking, restore on oil top (1), excavate the earth body of cleaning frame bridge (C) front lower then, again with process of frame bridge (C) jacking, so cycle operation is till frame bridge (C) puts (wearing frame holder railway bed) in place.

The utility model has the advantages that simple in structurely, volume is little, makes combination easily, adaptability By force, be used for the jacking frame construction in Rail Highway grade separation tunnel, can make train pass through speed limit Bring up to 100 kilometers/hour or more than.

Fig. 2 is the utility model Figure of abstract.

Claims

1, a kind of combined type load-bearing sliding shelling plate jacking shield structure body, comprise by a plurality of load-bearing sliding shelling plate bodies and combining, each load-bearing sliding shelling plate body is made up of sliding shelling plate (A) and trave lling girder (B), sliding shelling plate (A) includes oil top (1), top board (2), i beam muscle (3), side plate (4), limited block (5), nipper (6), connecting rod formations such as (7), trave lling girder (B) includes oil top (8), i beam (9), upper cover plate (10), lower cover (11), slide plate (12), preceding teeth (13), soil output (14), driver (15), bearing support formations such as (16) is characterized in that:

A, on trave lling girder (B), vertically be welded with slide plate (12) on the two side ends symmetrically, inner chamber front end at trave lling girder (B) is installed with soil output (14) by bearing support (16), inner chamber lower cover (11) middle part at trave lling girder (B), have soil outlet (E), oil top (8) is loaded on trave lling girder (B) intracavity posterior end, the oil footstock is fixed on the lower cover (11), and oily push rod end can lean frame bridge (C);

B, limited block (5) is arranged at the below balanced welding of the i beam muscle (3) of sliding shelling plate (A), with limit slippage backplate (A) along doing longitudinal sliding motion on the slide plate (12) of trave lling girder (B), oil top (1) is loaded on top board (2) rear end of sliding shelling plate (A), the oil footstock is fixed on the i beam muscle (3) by connecting rod (7), and oily push rod end can lean frame bridge (C).