CN101586464A - Construction method of railway tunnel lining side wall concrete - Google Patents
Construction method of railway tunnel lining side wall concrete Download PDFInfo
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- CN101586464A CN101586464A CNA2008100478022A CN200810047802A CN101586464A CN 101586464 A CN101586464 A CN 101586464A CN A2008100478022 A CNA2008100478022 A CN A2008100478022A CN 200810047802 A CN200810047802 A CN 200810047802A CN 101586464 A CN101586464 A CN 101586464A
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Abstract
The invention provides a construction method of railway tunnel lining side wall concrete. Firstly concrete for an inverted arch and the inner part of the inverted arch is constructed, then sleepers are placed, and a lining trolley traveling track is laid; a lining trolley is moved to a place to be lined, molding boards are connected to the top of a gantry, and end of hydraulic oil cylinders and jacks at two sides; the side hydraulic oil cylinders at two sides are started to regulate the molding boards at two sides of the lining trolley to the design positions, and all side jacks are locked to fix the side molding boards; short side wall molding boards at two sides of a tunnel are respectively mounted, the upper end heads of the short side wall molding boards are connected with the lower ends of arc-shaped molding boards at two sides to form a molding board assembly, and the molding board assembly is mounted at one end of the jack on a water groove side wall to be mounted with one side of the short side wall molding board; and then the concrete is cast and lined, and the cast lined concrete is dismounted with the mold after reaching the strength of mold removal. The construction method reduces procedures and shortens the erection time, saves the construction cost, and enhances the structure of the tunnel lining side wall and improves the external quality.
Description
Affiliated technical field
The present invention relates to a kind of construction method of railway tunnel lining side wall concrete, specifically a kind ofly can make the one-time formed job practices of railway tunnel lining side wall, belong to railway construction concrete construction technology field.
Background technology
At present, raising along with the construction quality standard, tunnel lining all adopts whole hydraulic formwork chassis to carry out concrete pouring construction, but owing to be subjected to the restriction of Tunnel Design lining cutting section configuration, known tunnel lining trolley is carrying out tunnel lining concrete when building, lining concrete must be taked to build for three times, and promptly the first step is built at the bottom of the ditch with the lower part concrete; Second step was built cover plate top, ditch with the short side wall concrete in lower part; The 3rd step was built abutment wall and arch ring concrete.Because it is various that lining concrete is built operation, artificial increase the twice constuction joints, and must pre-buried twice connect a batch reinforcing bar in order to ensure effectively connecting between the per pass constuction joint, cause operation to increase, difficulty of construction and cost increase and make its tunnel lining concrete circle globality poor.
Summary of the invention
When the objective of the invention is to build at existing tunnel lining concrete, lining concrete must be taked to build for three times, and it is various that lining concrete is built operation, and difficulty of construction and cost increase, the problem of tunnel lining concrete circle globality difference.The invention provides a kind of new tunnel lining side wall concrete job practices, this tunnel lining side wall concrete job practices not only can make the tunnel lining side wall concrete build one-shot forming, reduce working procedure, and can save batch reinforcing bar that connects between the twice constuction joint, save construction cost, also can guarantee the globality force structure and the one-time formed presentation quality of lining side wall of lining concrete arch ring and abutment wall.
The technical solution adopted for the present invention to solve the technical problems is: a kind of railway tunnel lining side wall coagulation job practices is characterized in that:
The first step: the inverted arch concrete a ' that constructs earlier, the fill concrete b ' that constructs again measures then and emits the tunnel center line for the treatment of lining cutting place, and settles sleeper and lay the lining trolley rail along the tunnel center line.
Second step: start walking system 3 and lining trolley is moved to treats lining cutting place, start vertical hydraulic oil cylinder 8 lining trolley vault absolute altitude is debugged to design attitude.
The 3rd step: adjust translation or transverse hydraulic oil cylinder 9 the lining trolley center line is overlapped with the tunnel center line, this moment, chassis dome portions template was adjusted to design attitude.
The 4th one: the curved sidewall formwork hinge is connected on the termination of portal frame both sides hydraulic jack 6 and jack 5, the side hydraulic oil cylinder 6 that starts both sides is adjusted to design attitude with lining trolley two cheek boards, lock all side direction jack 5, fixation side is to template.
The 5th step: the short sidewall template in both sides, tunnel is installed respectively, with bolt short sidewall template 14 upper ends and both sides arc formwork lower end is linked together, jack 15 1 terminations and short sidewall template one side that are supported on the abutment wall of ditch are fitted together.
The 6th step: build lining concrete.
The 7th step: lining concrete to be built carries out form removal after reaching form removal intensity.Carry out according to following steps during form removal:
1, the side direction jack 15 that comes loose is removed short sidewall template;
2, all side direction jack 5 that come loose start side hydraulic oil cylinder 6 lining trolley two cheek boards are inwardly drawn in;
3, starting vertical hydraulic jack 8 reduces lining trolley top template downwards;
4, next circulation lining cutting is carried out in the whole demouldings of lining trolley template.
Ditch of the present invention cover plate is that tunnel gutter cover plate seat is provided with short sidewall template with the lower part in the bottom of existing lining trolley, makes its short sidewall template and top lining shuttering form integral body; Build the rear pattern plate demoulding smoothly that finishes in order to ensure lining concrete, ditch cover plate seat platform is made into the slope, ditch cover plate seat template construct becomes chamfering, and cover plate seat two right angles in ditch are made as fillet.Lining concrete is built finish the rear pattern plate demoulding smoothly.Carrying out lining concrete when building, make the tunnel lining side wall concrete at the bottom of the ditch with down to the moulding of vault one-time-concreting.
Lining trolley described in second step of the present invention, bottom at the vehicle frame underframe is respectively equipped with travelling wheel, travelling wheel is installed on the rail track, one side is equipped with gearbox and motor in vehicle frame platform bottom, with lead motor is connected with power line, portal frame is fixed on the both sides of vehicle frame platform, the middle part of gantry pillar is respectively equipped with crossbeam and waist rail, be installed in translation hydraulic jack two ends piston rod hinge-coupled on the level and smooth groove in portal frame top on vertical hydraulic jack base, on the vertical hydraulic cylinder piston rod back timber is installed, on back timber, is respectively equipped with column; The both sides of portal frame are respectively equipped with hydraulic jack and jack; Hinge-coupled is on the sidewall of portal frame respectively in one termination of hydraulic jack, and another termination difference hinge-coupled of hydraulic jack and hydraulic jack is on the curved sidewall template of both sides.
Curved sidewall template and arc top template described in the 3rd, the 4th step of the present invention, arc dome portions template two ends difference hinge-coupled is at the upper end of portal frame both sides curved sidewall template.
Short sidewall template described in the 5th step of the present invention links together short sidewall template upper end and both sides arc formwork lower end with bolt, and the termination and short sidewall template 14 1 sides that are supported on jack 15 on the abutment wall of ditch link together.
The invention has the beneficial effects as follows, this railway tunnel lining concrete construction method, carrying out tunnel lining concrete when building, 3 road working procedures are merged into working procedure one, reduce working procedure and saving and connect a batch reinforcing bar, shorten construction period, saved construction cost under the constant situation of structure stress, strengthened tunnel lining abutment wall structure and presentation quality guaranteeing.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is known railway tunnel lining concrete construction block diagram.
Fig. 2 is known railway tunnel lining chassis structural representation.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is a railway tunnel lining concrete construction block diagram of the present invention.
Fig. 5 is a railway tunnel lining trolley formwork structural representation of the present invention.
Fig. 6 is that the B of Fig. 5 is to view.
In the drawings 1, the template assembly, 2, walking system, 3, underframe, 4, portal frame, 5, jack, 6, hydraulic jack, 7, translation mechanism, 8, vertical hydraulic jack, 9, the translation hydraulic jack, 10, electric system, 11, hydraulic control panel, 12, jack, 13, grout hole, 14, short sidewall template, 15 jack.
Among the lining concrete railway tunnel figure of or prior art known: a, be the inverted arch concrete at Fig. 1, b, be following fill concrete at the bottom of the ditch, c, be following abutment wall pin concrete at the bottom of the ditch, d, be short abutment wall, e, for connecing a batch reinforcing bar, f, be the ditch, g, bottom surface, tunnel, are the concrete arch wall at h.
In Fig. 4 lining concrete railway tunnel of the present invention figure: a ', being inverted arch, b ', is fill concrete, f ', is the ditch, h ', is the concrete arch wall, g, bottom surface, tunnel.
The specific embodiment
In the railway tunnel lining concrete construction step of or prior art known, with existing railway tunnel lining chassis and formwork structure: inverted arch concrete a at Fig. 1; The following partially filled concrete b of ditch f; The ditch with lower part abutment wall pin concrete c and bury underground meet a batch reinforcing bar e; Short abutment wall coagulation d and bury underground meet a batch reinforcing bar e; The first step is finished with the lower part concrete at the bottom of building the ditch, and the bottom of trench of ditch f recharges concrete with top and forms bottom surface, tunnel g; Second step built cover plate top, ditch and finishes with the short side wall concrete in lower part; The 3rd step was built tunnel concrete arch wall h; To just can finish tunnel arch wall concreting through 3 procedures.
In railway tunnel lining concrete construction step of the present invention, adopt lining trolley of the present invention and formwork structure, only need 2 procedures just can finish the tunnel concrete arch wall and build.This 2 procedure is: the first step is finished inverted arch a ' and is filled concreting b ' with the lower part concrete at the bottom of building the ditch, and second step finished and builds short abutment wall and concrete arch wall.
Become the lining trolley of band template by hydraulic system, traveling or running gear, support system, shell system, template assembly, accessory system aggregate erection in the structure of lining trolley of the present invention.
1, described hydraulic system: form by hydraulic control panel 11, side hydraulic oil cylinder 6 and jack 5, vertical hydraulic jack 8, translation or transverse hydraulic oil cylinder 9.Wherein the side direction template that act as the adjustment lining trolley of side hydraulic oil cylinder can be shunk and be expanded the side direction template of lining trolley in the horizontal direction, thereby satisfies design section size width requirement in the horizontal direction; The height of lining trolley arch template at vertical direction adjusted in acting as of vertical hydraulic jack 8, and its lining trolley arch template in the vertical direction is raise and reduction, thereby reaches the requirement for height of lining trolley dome portions template in the vertical direction; The effect of translation hydraulic jack 9 is to move in the horizontal direction template, guarantees that the template center line overlaps with the tunnel center line, adheres to specification the section of lining concrete.The translation hydraulic jack is fixed on the portal frame back timber, its two ends adopt bolt to be connected with vertical hydraulic jack base, after the translation hydraulic jack starts, the vertical hydraulic jack base that horizontal thrust by the translation hydraulic jack and pulling force will be fixed on the portal frame back timber chute moves to the left and right, and the arch template is connected with vertical hydraulic jack, therefore, the arch template is and then translation hydraulic jack move left and right also, thereby reaches the purpose that tunnel center line and lining trolley template center line coincide.
2, described walking system: as Fig. 5, shown in Figure 6, walking system is made up of sleeper, rail, travelling wheel, motor, gearbox.Sleeper act as fixedly rail, rail is fixed to design attitude; Rail makes its chassis along fixing rail running for the chassis traveling play the guiding role; Motor power passes to the chassis travelling wheel after by the gearbox reducer, thereby its chassis is moved along rail.Before and after the every side of lining trolley a motor is set, the motor in back plays a driving role, and the motor in front plays draw.
3, described support system: as Fig. 5, shown in Figure 6, support system comprises two parts, used hydraulic jack and the jack of a part between template and portal frame, and another part is between bottom girder and rail.Part between portal frame and template is that the ambient pressure that template is born is passed to portal frame by hydraulic jack or hydraulic jack, plays the effect of support shuttering.Be connected by bolt hinge between this part hydraulic jack and jack and the portal frame, can rotating certain angle, use hydraulic jack that template is debugged back in place hydraulic jack and jack locking when operation, locking is taked to insert latch and is fixed in pin hole.Part between bottom girder and rail is that the pressure that bottom girder is born is passed to rail by hydraulic jack and jack, and then is passed to ground.
4, described shell system: as shown in Figure 5, shell system comprises portal frame, crossbeam, bottom girder, back timber, column.Wherein portal frame, crossbeam, bottom girder are formed gantry system, mainly bear all pressure that template is come by the jack transmission, back timber and column bear arc dome portions template by the pressure that the column transmission comes, and pass to gantry system by the back timber jack at last.
5, template assembly: as shown in Figure 5, template assembly 1 comprises arc dome portions template, abutment wall arc formwork, short sidewall template, waist rail.Wherein arc vault template, abutment wall arc formwork, short sidewall template are the members that makes the concrete formation of building, and are the major parts of concreting former lining trolley.Wherein short sidewall template is divided into upper and lower two parts, and top is connected with the abutment wall arc formwork, and ditch cover plate seat platform is made into the slope belt fillet, so that the demoulding, two ends connect by bolt respectively up and down.Waist rail is the member that connects template, and length and chassis are isometric, and main effect is that template is connected into integral body, increases the integral rigidity of chassis.
6, described accessory system: as Fig. 5, shown in Figure 6, accessory system comprises fence, operating platform, operation window, wherein fence is to play the security protection effect, operating platform is for manually-operated platform, and operation window is to enter the window that concrete vibrating is carried out in the concrete space for artificial and vibrating spear.
Under the effect of lining trolley, the tunnel lining concrete pouring construction is finished according to the following steps:
1, in digging the hole, tunnel, a ' part of constructing earlier inverted arch concrete, the b ' partially filled concrete of constructing is again measured then and is emitted the tunnel center line for the treatment of lining cutting place, and settles sleeper and lay the lining trolley rail along the tunnel center line.
2, as shown in Figure 6, start walking system and lining trolley is moved to treats lining cutting place, start vertical hydraulic oil cylinder 8 lining trolley vault absolute altitude is debugged to design attitude.
3, as shown in Figure 5, adjust translation hydraulic jack 9 the lining trolley center line is overlapped with the tunnel center line, this moment, chassis arch template was adjusted to design attitude.
4, as shown in Figure 5, the side hydraulic oil cylinder 6 that starts both sides is adjusted to design attitude with lining trolley two cheek boards, locks all side direction jack 5, and fixation side is to template.
5, as shown in Figure 5, short sidewall template 14 is installed, is adopted bolt that short sidewall template is connected with top assembly template, and adopt side direction jack 15 to be supported on and fix short sidewall template 14 on the abutment wall of ditch.
6, build lining concrete.
7, carry out form removal after lining concrete to be built reaches form removal intensity, carry out according to following steps during form removal:
(1), the side direction that comes loose jack 15, remove short sidewall template 14;
(2), all side direction jack 5 that come loose, start side hydraulic oil cylinder 6 lining trolley two cheek boards inwardly drawn in;
(3), starting vertical hydraulic oil cylinder 8 reduces lining trolley top template downwards;
(4), the whole demouldings of lining trolley template, carry out next circulation lining cutting.
Claims (2)
1, a kind of construction method of railway tunnel lining side wall concrete is characterized in that construction sequence is:
The first step: the inverted arch concrete a ' that constructs earlier, in inverted arch, divide fill concrete b ', measure then and emit the tunnel center line for the treatment of lining cutting place, and settle sleeper and lay the lining trolley walking rails along the tunnel center line;
Second step: start action edge and lining trolley is moved to treat lining cutting place, start vertical hydraulic jack (8) lining trolley vault absolute altitude is debugged to design attitude;
The 3rd step: adjust translation hydraulic jack (9) the lining trolley center line is overlapped with the tunnel center line, this moment, chassis dome portions template was adjusted to design attitude;
The 4th one: the curved sidewall formwork hinge is connected on the termination of portal frame both sides hydraulic jacks (6) and jack (5), the side hydraulic oil cylinder (6) that starts both sides is adjusted to design attitude with lining trolley two cheek boards, lock all side direction jack (5), fixation side is to template;
The 5th step: the short sidewall templates in both sides, tunnel (14) are installed respectively, with bolt short sidewall template upper end and both sides arc formwork lower end are linked together, the termination and short sidewall template (14) one sides that are contained in the jack (15) on the abutment wall of ditch link together;
The 6th step: build lining concrete;
The 7th step: lining concrete to be built carries out form removal after reaching form removal intensity.
2, a kind of railway tunnel lining side wall coagulation job practices according to claim 1 is characterized in that: carry out according to following steps during form removal:
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| CN2008100478022A CN101586464B (en) | 2008-05-22 | 2008-05-22 | Construction method of railway tunnel lining side wall concrete |
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| CN2008100478022A CN101586464B (en) | 2008-05-22 | 2008-05-22 | Construction method of railway tunnel lining side wall concrete |
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| CN101586464B CN101586464B (en) | 2012-03-28 |
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| CN108166995A (en) * | 2018-01-26 | 2018-06-15 | 林海剑 | A kind of lining trolley template automatic adjustment system and method |
| CN108374677A (en) * | 2018-04-16 | 2018-08-07 | 中交第公路工程局有限公司 | A kind of combined machine trolley device of tunnel side ditch and the construction of Bridge guardrail coagulation |
| CN108374677B (en) * | 2018-04-16 | 2024-03-22 | 中交一公局集团有限公司 | Combined mechanical trolley device for coagulation construction of tunnel side ditch and bridge guardrail |
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