CN108239896A - Existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method - Google Patents
Existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method Download PDFInfo
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- CN108239896A CN108239896A CN201810235567.5A CN201810235567A CN108239896A CN 108239896 A CN108239896 A CN 108239896A CN 201810235567 A CN201810235567 A CN 201810235567A CN 108239896 A CN108239896 A CN 108239896A
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- disease treatment
- foundation base
- existing railway
- longeron
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 201000010099 disease Diseases 0.000 title claims abstract description 30
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
Abstract
The invention discloses a kind of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structures, and the main beam including being used to support rail, the both ends of the main beam are fixed.The construction method based on above-mentioned constructing structure is further included, is included the following steps：First, rail is removed；The 2nd, main beam and secondary crossbeam are installed；3rd, longeron is set up；The 4th, rail is installed；5th, refoot construction.It is an object of the invention to：For the problem that existing existing railway Disease Treatment of Foundation Base construction technology, exist can not realize do not cut off traffic in the case of construct, a kind of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method are provided.The constructing structure and construction method make somebody a mere figurehead rail track, can guarantee that Business Line normally under the premise of driving, carries out thorough Disease Treatment of Foundation Base.
Description
Technical field
The invention belongs to construction of railways technical fields, and in particular, to a kind of existing railway Disease Treatment of Foundation Base line frame
Empty constructing structure and the construction method based on the constructing structure.
Background technology
The existing railway design standard that China is now in operation state is relatively low, in recent years, due to railway speed increase, rate of traffic flow
Greatly, start many reasons such as heavy haul train, prolonged fatigue rupture, winter freeze-thaw damage, ground water pressure be excessive, to runing
In substrate destruction it is more serious.Caused by bottom slab crack, frost boiling, arch deformation etc. in various degree the defects of and disease it is more next
It is more, circuit stabilization is influenced, jeopardizes traffic safety.Existing construction technology can only first stop the operation of rail track, then carry out iron
Road Disease Treatment of Foundation Base construction, which results in huge economic losses.
Invention content
It is an object of the invention to：For existing existing railway Disease Treatment of Foundation Base construction technology, existing can not realize
The problem of being constructed in the case of not cutting off traffic provides a kind of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure
And construction method.The constructing structure and construction method make somebody a mere figurehead rail track, under the premise of can guarantee that Business Line is normally driven a vehicle, into
The thorough Disease Treatment of Foundation Base of row.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure, the main beam including being used to support rail, institute
The both ends for stating main beam are fixed.Using main beam structure, first the both ends of main beam structure are fixed, then are laid in the top of crossbeam
Rail, so as to construct to the substrate below rail.This programme can meet under the premise of Business Line is normally driven a vehicle,
Carry out thorough Disease Treatment of Foundation Base.
Preferably, the buttress of fixed setting is further included, the both ends of the crossbeam are arranged on the top of the buttress,
Using branch pier structure, the fixation for making main beam both ends is more stable.
Preferably, formwork erection is poured and is made the buttress at the scene, ensures the stability of support construction, so as to improve
The safety of circuit.
Preferably, sleeper head is further included, the sleeper head is arranged between the main beam and the buttress.Pillow
Wood has good antivibration characteristic, and this programme makes the vibration resistance of structure stronger.
Preferably, longeron and secondary crossbeam are further included；The longeron is arranged on the top of the main beam；The pair
Crossbeam is arranged on the lower section of the longeron.In the extending direction of rail, i.e., on longitudinal direction, by setting up longeron, and main beam it
Between set up the mode of secondary crossbeam, the support for making rail is more dense, so as to improve travel safety.
Preferably, the main beam and secondary crossbeam are connect respectively by U-shaped connector with the longeron, connecting portion
Part is simply firm, convenient for in-site installation and dismounting.
Preferably, the longeron is set side by side with two, and the longeron is connected by connecting plate to be extended, and two
The connector of longeron is interlaced.It is set up in parallel two longerons, it is ensured that the stability of structure；And be staggered, it further improves vertical
The stress intensity of beam.
Based on the construction method of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure, include the following steps：
First, rail is removed；
The 2nd, main beam and secondary crossbeam are installed；
3rd, longeron is set up；
The 4th, rail is installed；
5th, refoot construction.
Based on above-mentioned constructing structure, since its is simple in structure so that difficulty of construction substantially reduces.And the construction party of this programme
In method, step 1 to the four fundamental rules workshop off period that is able to be expert at can carry out.Finally, the construction that refoots is carried out, carries out thorough substrate
Disease Treatment.
Preferably, in the step 1, further include rail cut-off, the operation of erection joint clamping plate.Due to substrate
Disease may be in local appearance, and rail longitudinal length is longer.At this point, in order to avoid constructing on a large scale, to the stabilization of rail
Property impacts.This programme then under the premise of rail stability is influenced as small as possible, carries out local Disease Treatment of Foundation Base.
Preferably, in the step 2, the operation that accurate adjustment is carried out to the position of main beam and secondary crossbeam is further included.
Ensure the position precision of main beam and secondary crossbeam, so as to ensure the accuracy of rail, improve travel safety.
In conclusion by adopting the above-described technical solution, compared with the prior art, the beneficial effects of the invention are as follows：
1st, the present invention can guarantee that Business Line normally under the premise of driving, carries out thorough Disease Treatment of Foundation Base, economy and society
Meeting remarkable benefit, has and widely promotes the use prospect.
2nd, section of the present invention is small, does not invade limit, is especially suitable for constructing in the narrow space of single-track tunnel, meets single-track tunnel hole
Interior aerial hardened link safety clearance requirement solves the headroom limitation problem of single-track railway tunnel.
3rd, overhead transmission line needs skylight to reduce, more light and flexible during construction, especially during constructing tunnel, to existing
Structure is destroyed smaller, it is only necessary to gutter be repaired after the completion of construction.
4th, difficulty of construction reduces, and particularly convenient for having bad luck, installing and reinforcing in tunnel, greatly shortens fixed track usage plan
Construction period.
5th, meet large span overhead transmission line requirement, meet intensity, stability requirement.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is the A portions enlarged structure schematic diagram of the present invention.
Fig. 3 is the side structure schematic view of the present invention.
Fig. 4 is the work progress schematic diagram of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
The present embodiment discloses a kind of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure, as shown in Figs. 1-3, to answer
For constructing tunnel, the main beam 1 including being used to support rail, the both ends of the main beam 1 are fixed.Main beam uses H
Shaped steel, size are 290mm × 200mm × 8mm × 12mm.
Specifically, as shown in Figs. 1-3, the present embodiment further includes the buttress 2 of fixed setting, the both ends setting of the crossbeam 1
In the top of the buttress 2.Formwork erection is poured and is made the buttress 2 at the scene.Sleeper head 3 is further included, the sleeper head 3 is arranged on
Between the main beam 1 and the buttress 2.Branch pier foundation, implantation reinforcing bar, dog, steel plate, asbestos are poured using high-strength mortar
The buttress of paper composition meets required precision, faces combination forever and greatly improves construction efficiency.
Specifically, as shown in Figs. 1-3, the present embodiment further includes longeron 4 and secondary crossbeam 5；The longeron 4 is arranged on the master
The top of crossbeam 1；The pair crossbeam 5 is arranged on the lower section of the longeron 4.The main beam 1 and secondary crossbeam 5 are respectively by U-shaped
Connector 6 is connect with the longeron 3.The longeron 4 is set side by side with two, and the longeron 4 is connected by connecting plate 7 to be extended,
And the connector of two longerons 4 is interlaced.Rail distance rod is provided between the longeron 4 and rail.Longeron uses biplate 45B works
Word girder steel, longeron size are 450mm × 152mm × 13.5mm × 10mm, are 87.4kg/m per linear meter(lin.m.) weight, joint length is
12m, longeron is longitudinally connected to be bolted using the installation of connecting plate 7, and connecting plate 7 is steel plate.Secondary crossbeam uses H profile steel, and size is
290mm×200mm×8mm×12mm.Major and minor crossbeam is uniformly distributed arrangement by 1m spacing, and buttress is symmetrically and evenly divided by 3m spacing
Cloth is arranged.
Specifically, as shown in Figs. 1-3, rail is fixed on the top of the main beam 1 and secondary crossbeam 4 by fastener 8.It is described
Insulation spacer is both provided between main beam 1 and rail and between the secondary crossbeam 4 and rail.Use spring strip II type fastener
Install the needs that L-type nylon spacer solves insulation of track circuit additional between rail and gauge apron, it is good to ensure to insulate
It is good, the normal use for the Block signaling equipment that automatically closes up.
Fixed track usage plan makes somebody a mere figurehead scheme using sunk type, and using the more light self-control steel construction of weight, use is had bad luck in hole
Hand fit's flat car cart can be completed.Main force structure is longitudinal main stress structure-longeron and lateral main stress
The major and minor crossbeam of structure.Buttress, major and minor crossbeam, longeron and U-shaped connector composition stress frame is selected to make somebody a mere figurehead track circuit
And it reinforces.Its whole force path is：Rail → major and minor crossbeam (H profile steel) → longeron (I-steel) → sleeper head → buttress.It protects
Demonstrate,prove fixed track usage plan after Rail inspection, circuit rigidity and stability, it is ensured that Heavy Haul Freight Train by when be perfectly safe.This
Outside, using the loads change of strain transducer monitoring of structures, dynamic monitoring is to reduce construction risk.
This embodiment reduces a large amount of mechanical work and labour, construction site electricity consumption uses tunnel intraoral illumination power
Electricity, the internal combustion apparatus used in tunnel are small machine, and energy-saving and emission-reduction in work progress reach preferable environment protecting.No
It needs to hang from wheel running device and material is had bad luck in fortune flat car tunnel, does not need to track lifter progress steel beam lifting operation.
The large-scale circuit transport lifting special equipment such as track crane, flat car is not needed to, through calculating, 6000 yuan of track strengthening cost reduction/
M, fixed track usage plan construction only needs 12 skylight points (each 3~4h of skylight) from preparation of construction to aerial completion, than other engineering methods
At least reduce 5 skylight blocking times, economic and social benefit is notable.
The construction method of the present invention described in detail below, as shown in figure 4, including the following steps：
1st, light, cable change shifting and reinforce
Light, cable carry out site inspection before changing shifting to existing optical cable, determine light, cable length and change shifting scheme, according to
Scene needs to prepare optical cable connecting box, optical cable, cable, punch device, expansion bolt, iron wire, mackintosh etc. in advance.Use electricity
Hammer is drilled in tunnel side wall and installs expansion bolt.Optical cable lengthens optical cable using optical cable connecting box and carries out continued access, and cable makes
Continued access is carried out with jumper.It is unified to be bundled using iron wire after the completion of light, the continued access of cable scene, at binding using gum cover pipe into
Row protection.Light, cable after reinforcing is hung on the expansion bolt that tunnel side wall is installed, it is firm using iron wire reinforce.
2nd, rail cut-off, erection joint clamping plate
It is investigated for the rail in the range of fixed track usage plan and defect detecting test, it is ensured that rail state of the art is good.By 25m
The rail end that rail is cut-off for 12.5m rail and after cut-offfing punch and erection joint clamping plate.
3rd, change and move draining, pour branch pier foundation
Change and check water flow, water (flow) direction, and make ditch stopend in advance before moving draining.Preparation, which changes, moves draining use
φ 100mm wired hoses, pour φ 150mm steel pipes, bamboo blanket template and TK grouting materials that buttress uses.Manual demolition ditch
And cable trough cover boards, it is transported to refuge chamber and carries out pile, pile is neat, firm, unsuitable excessively high, and meeting railway security gauge will
It asks.Steel pipe is transferred, and hose is penetrated in steel pipe in buttress position.In ditch, upstream position installs stopend, template packet card
Firmly hose, temporary clay is blocked after blocking using TK grouting materials at gap.Ditch checks drainage situation after changing, it is ensured that flows in ditch
Water is smoothly discharged by hose.Installation form carries out pouring buttress using TK grouting materials at the steel pipe of buttress position decentralization.
4th, sleeper head is set up
The preferable conservator of quality is selected, conservator is cut-off into 600mm bolster wood using internal combustion handsaw, sleeper makes after cut-offfing
Binding reinforcing is carried out with φ 8mm iron wires and iron wire is inlaid into sleeper using hand hammer, it is ensured that surfacing.Select quality preferable
Plank, specification is the same as sleeper head size, thickness 50mm, 30mm, 20mm.It is set up in length and breadth for every layer when sleeper pier is set up, using taking off
Nail layering nail connects, and in the steel plate of top layer setting 600mm × 600mm × 20mm, is carried out between steel plate, longeron and sleeper head using railway spike
It is fixed.Implantation reinforcing bar is carried out at high-strength mortar buttress, reinforcing bar is welded with top layer steel plate.Buttress elevation is according to circuit longitudinal slope
It is controlled, is controlled using spirit level, total powerstation.
5th, longeron and major and minor crossbeam are unloaded on the way
Longeron and major and minor the crossbeam building up station near job location carry out entrucking without barrier, and entrucking is hung using 1 25t
Vehicle lifts ,+2 N17 flat cars cooperation shipments of 2 JY290 railcars.It is live manually using crowbar, argue, the rope made of hemp, mounting board etc.
Tool unloads, transports and pile.It unloads and is completed in point, pile is neatly firm, carries out support pad reinforcing when necessary, and intrusion is forbidden to pacify
Full gauge.
6th, rail is removed, major and minor crossbeam is installed
It is recycled during manual demolition fastener according to the classification of fastener specification, convenient for being installed and used when restoring.When rail is removed,
Rail is transported to other than major and minor construction of beam range temporarily storage using hanger rail device and pulley, original position is transported back after installing
It is installed.Major and minor crossbeam is forbidden to overlap with rail foot, avoids causing track circuit red band, using rubber mat plate as
Support pad is isolated.In order to adjust track level, height, used using 2mm, 5mm, 10mm nylon back plate as track accurate adjustment.In order to
Ensure that crossbeam position is accurate, rail is marked using paint in both sides, and crossbeam, which penetrated on rear center's alignment rail, to be marked
Heart point.Railway roadbed ballast is using bag weaved pack pile other than boundary of works area.
7th, longeron, accurate adjustment are set up
Unilateral longeron sets up 2 450mm I-steel, and 2 I-steel are forbidden to occur using alternate joint when longeron is matched
Opposite joint.Longeron connector is attached and is fastened using connecting plate and bolt.Longeron is connect with crossbeam using U-shaped card and steel
Board slot use is bolted and fastens, and installs spring washer during connection additional to prevent bolt looseness.Longeron height, horizontal adjustment are adopted
It is carried out with choker block asbestos paper, it is uneven to be controlled using spirit level.
8th, detaching sleeper, fastener for installing
Rail is removed at tunnel bottom before excavating, the sleeper of unit is excavated in extraction, installs crossbeam fastener system.In order to avoid there is rail
Road circuit red band, fastener system install insulation spacer additional, and the card of L-type nylon material is installed between gauge apron and the rail flange of rail
Slot.Fastener use spring strip II type fastener, install and be combined according to 1435mm gauges, gauge rail to when transfiniting use 0-6,2-4
Nylon baffle seat adjustment.Line frame dead band installs rail distance rod additional.
9th, rail, installation sleeper are removed
Rail is removed in tunnel bottom after the completion of refooting, and is inserted into sleeper, fastener for installing.
10th, it is upper to be cut, make firm by ramming
Ballast backfill is carried out using the ballast of pack.Line tamping is carried out using flexible shaft tamping machine, in the range of reinforcing rail
It makes firm by ramming at pillow bottom, it is ensured that the closely knit stabilization of railway roadbed.
11st, longeron and major and minor crossbeam are removed
Longeron and major and minor crossbeam first removed when removing longeron using electric track flatcar by longeron transport tunnel and under
Road.Major and minor crossbeam is first segmented when removing removes circuit rail, treats that major and minor crossbeam restores circuit rail and fastener after removing.
Major and minor crossbeam carries out benefit quarrel to major and minor crossbeam position immediately after having removed, makes firm by ramming, it is ensured that railway roadbed is closely knit, stablizes.Major and minor crossbeam
Longeron is transported into tunnel and lower road using electric track flatcar after dismounting.
12nd, circuit geometric dimension is rebuild
Using locomotive traction K13 pneumatic ballast vehicles to tunnel refoot regulation location carry out unloading quarrel.Using tamping car to tunnel
It refoots and renovates the mechanical levelling of location progress, makes firm by ramming.After the completion of making firm by ramming, circuit is opened after reaching train clearance condition, it is artificial on duty
Patrol foster, circuit ladder raises speed to constant speed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure, it is characterised in that：Including being used to support rail
Main beam (1), the both ends of the main beam (1) are fixed.
2. existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 1, it is characterised in that：Also wrap
The buttress (2) of fixed setting is included, the both ends of the crossbeam (1) are arranged on the top of the buttress (2).
3. existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 2, it is characterised in that：It is described
Formwork erection is poured and is made buttress (2) at the scene.
4. existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 2, it is characterised in that：Also wrap
Sleeper head (3) is included, the sleeper head (3) is arranged between the main beam (1) and the buttress (2).
5. existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 1, it is characterised in that：Also wrap
Include longeron (4) and secondary crossbeam (5)；The longeron (4) is arranged on the top of the main beam (1)；The pair crossbeam (5) is arranged on
The lower section of the longeron (4).
6. existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 5, it is characterised in that：It is described
Main beam (1) and secondary crossbeam (5) are connect respectively by U-shaped connector (6) with the longeron (3).
7. existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 5, it is characterised in that：It is described
Longeron (4) is set side by side with two, and the longeron (4) is connected by connecting plate (7) to extend, and the connector phase of two longerons (4)
Mutually staggeredly.
It is 8. special based on the construction method of the existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure described in claim 5
Sign is, includes the following steps：
First, rail is removed；
The 2nd, main beam and secondary crossbeam are installed；
3rd, longeron is set up；
The 4th, rail is installed；
5th, refoot construction.
9. the construction method of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 8, special
Sign is：In the step 1, further include rail cut-off, the operation of erection joint clamping plate.
10. the construction method of existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure according to claim 8, special
Sign is：In the step 2, the operation that accurate adjustment is carried out to the position of main beam and secondary crossbeam is further included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235567.5A CN108239896A (en) | 2018-03-21 | 2018-03-21 | Existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method |
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| CN201810235567.5A CN108239896A (en) | 2018-03-21 | 2018-03-21 | Existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method |
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| CN115839045A (en) * | 2022-12-15 | 2023-03-24 | 中铁西北科学研究院有限公司 | Roadbed uneven settlement deformation area renovation process and frozen soil renovation roadbed structure |
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