CN104652299A - Electrified railway existing bridge and culvert whole-hole moving-out construction method - Google Patents
Electrified railway existing bridge and culvert whole-hole moving-out construction method Download PDFInfo
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- CN104652299A CN104652299A CN201510060819.1A CN201510060819A CN104652299A CN 104652299 A CN104652299 A CN 104652299A CN 201510060819 A CN201510060819 A CN 201510060819A CN 104652299 A CN104652299 A CN 104652299A
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- beam slab
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention provides an electrified railway existing bridge and culvert whole-hole moving-out construction method, which comprises the following steps that a flagstone foundation is formed through building flagstones under an existing railway bridge; a tension pile is arranged in foundation soil; earthwork is used for filling between the flagstone foundation and the tension pile for forming an earthwork filling layer; a concrete side slag blocking wall is cast; a beam conveying rail is paved and fixed; the whole-hole beam plate moving-out is carried out in a construction operation site; stone ballasts are filled back, a railway route is recovered and the like. The electrified railway existing bridge and culvert whole-hole moving-out construction method provided by the invention has the advantages that the condition that the normal use of a railway power supply system is not influenced in the beam plate dismounting process can be ensured, in addition, each hole beam plate on the railway bridge can realize the integral one-step dismounting, the rail-way sealing construction time is shortened, in addition, the construction is convenient, the safety is higher, the construction period is short, and the construction cost is low.
Description
Technical field
The invention belongs to construction of railway project technical field, particularly construction method is shifted out in the whole hole of the existing bridges and culverts of a kind of electric railway.
Background technology
Past highway and railway intersection adopts highway undercrossing tunnel mode usually, namely arranges railroad bridge at this place.Past generally adopts single hole or porous beam bridge, and aperture is less.Along with the develop rapidly of economy, original railroad bridge facility cannot meet instructions for use, therefore needs to carry out reorganization and expansion construction to it.But along with popularizing of electric railway, the quickening of the railroad train speed of service and the increasing of freight volume, in construction of railway project enclosed point, closedown railway contact line and enclosed point time length are restricted, and the mode that therefore beam slab of railroad bridge cannot adopt wheeled crane to lift is removed.When existing for electrification porous beam bridge is replaced as frame bridge by needs, normally close railway contact line, slabstone is built by laying bricks or stones below existing beam slab, rail facility above beam slab is removed in enclosed point, and adopt large-tonnage wheeled crane to move outside beam slab, backfill ballast, recover circuit, but the construction method of this employing wheeled crane need close railway contact line and disposable integral dismounting porous beam slab needs longer railway enclosed point, thus have a strong impact on the entirety allotment of railway transportation, and workload is comparatively large, speed of application is slow, and construction cost is high.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide that a kind of operating process is simple, construction cost is low, do not need to close railway contact line in work progress and the construction enclosed point time short and construction method can be shifted out in the whole hole of the existing bridges and culverts of electric railway of shifting out beam slab, disposable whole hole.
In order to achieve the above object, the whole hole of the existing bridges and culverts of electric railway provided by the invention is shifted out construction method and is comprised the following step carried out in order:
1) in Existing Railway Bridges beam slab both sides to be removed, every hole foundation soil in tension pile is set respectively;
2) under every bar rail track beam slab place to be removed Existing Railway Bridges below build slabstone by laying bricks or stones with formation sheet stone foundation, then fill with the earthwork between sheet stone foundation and tension pile and form the earthwork and fill layer;
3) in the sheet stone foundation of rail track opposite side, build the together concrete side block parallel with rail track bearing of trend to be cut wall;
4) the fortune beam orbit of laying one from beam slab to be removed to tension pile on layer is filled in sheet stone foundation and the earthwork;
5) form layer of concrete transporting concreting in the space on beam orbit between sleeper, and sleeper is embedded in layer of concrete;
6) by traversing for the rail track above beam slab to be removed between two rail tracks;
7) jack is adopted from the two ends of beam slab to be removed by beam slab jack-up to be removed;
8) fortune beam coaster is pushed into the below of beam slab to be removed along fortune beam orbit;
9) make jack release to be put by beam slab to be removed on fortune beam coaster;
10) motor-driven chain hoist is set between fortune beam coaster and two tension piles, and utilize motor-driven chain hoist by fortune beam coaster and on beam slab to be removed be pulled outwardly to assigned address along fortune beam orbit;
11) terminal block quarrel device is installed not removing beam slab and removed between beam slab;
12) the sheet stone foundation outside former rail track placement to be installed and be cut side block that wall parallels of concrete side block is cut device;
13) remove beam slab place backfill ballast, and recover rail track;
14) in other enclosed point, step 6 is repeated)-13), to remove all beam slabs successively.
Described lateral retaining wall device comprises many root posts and Duo Gen i iron; In the preformed hole that wherein the bottom intervening gaps of many root posts is come in and gone out in sheet stone foundation, many i iron levels overlay the inner side of many root posts;
The whole hole of the existing bridges and culverts of electric railway provided by the invention is shifted out construction method and can be ensured to remove the normal use not affecting railway power system in beam slab process, and the every hole beam slab on railroad bridge can be removed in disposable whole hole, shorten the railway closure construction time, and there is constructability, safety is higher, the duration is short, construction cost is low advantage.
Accompanying drawing explanation
Fig. 1 transports beam coaster in the implementation process adopting construction method provided by the invention to be shifted out in existing for the electric railway whole hole of bridges and culverts to move to schematic diagram below beam slab.
Fig. 2 is that in the implementation process adopting construction method provided by the invention to be shifted out in existing for the electric railway whole hole of bridges and culverts, beam slab shifts out rear schematic diagram.
Fig. 3 is side block quarrel wall construction schematic diagram in the implementation process adopting construction method provided by the invention to be shifted out in existing for the electric railway whole hole of bridges and culverts.
Detailed description of the invention
Shift out construction method below in conjunction with specific embodiment to the whole hole of the existing bridges and culverts of electric railway provided by the invention to be described in detail.
Now be described for certain engineering: this project is for removing existing three hole beam bridges, existing railway comprises two strand roads, distance between centers of tracks is 8.10m, three hole beam bridges are 6.7m-12.6m-6.7m structure, every pore structure comprises 2 T-shaped beam slabs, and wherein the every sheet weight of lateral opening beam slab is 28t, and the every sheet weight of mesopore beam slab is 52t, every sheet beam slab height is 1.45m, and width is 1.90m.
As shown in Fig. 1-Fig. 2, it is comprise the following step carried out in order that construction method is shifted out in the whole hole of the existing bridges and culverts of electric railway provided by the invention:
1) in Existing Railway Bridges beam slab 7 to be removed both sides, every hole foundation soil in tension pile 5 is set respectively;
The present embodiment is in the foundation soil of beam slab 7 both sides, every hole, arrange two tension piles 5 paralleled with rail track 1, distance between tension pile 5 and its nearest rail track 1 center line is 15.0m, it is hand excavated pile, stake footpath is 1.25m, underground buried depth is 6.0m, ground upper part adopts and installs template, concreting mode is made, and stake apical side height is consistent with the apical side height of beam slab 7 to be removed;
2) below the Existing Railway Bridges at every bar rail track 1 time beam slab 7 place to be removed, build slabstone by laying bricks or stones with formation sheet stone foundation 6, then fill with the earthwork between sheet stone foundation 6 and tension pile 5 and form the earthwork and fill layer 10;
Sheet stone foundation 6 is the side of close tension pile 5 is skewed cube-shaped structure, and end face width is greater than the width of beam slab 7 to be removed, in the present embodiment, the slabstone grade of mortar of building by laying bricks or stones of formation sheet stone foundation 6 is M10, end face width is 25.0m, grade of side slope is 1:1, and the earthwork is filled in process and adopted mechanical ramming;
3) in the sheet stone foundation 6 away from tension pile 5 side, build the together concrete side block parallel with rail track 1 bearing of trend to be cut wall 2;
In the present embodiment, in the middle of two rail tracks 1 and apart from be positioned at the same side rail track 1 center line 2.5m place each stone foundation 6 on build one side block and to be cut wall 2, the width of side block quarrel wall 2 is 0.5m, and side block quarrel wall 2 end face is 0.8m apart from the discrepancy in elevation between rail track 1 rail foot surface.
4) sheet stone foundation 6 and the earthwork fill on layer 10 lay one from beam slab 7 to be removed to the fortune beam orbit 4 of tension pile 5;
In the present embodiment, fortune beam orbit 4 adopts two 43Kg/m rail, and rail spacing is 0.70m; Sleeper is sleeper, and sleeper spacing is 0.60m; Laying length is 17.0m; Railway spike is adopted to be connected between rail with sleeper; Distance between at the bottom of the fortune rail surface of beam orbit 4 and beam slab is 5cm;
5) forming layer of concrete transporting concreting in the space on beam orbit 4 between sleeper, thus sleeper being embedded in layer of concrete;
In the present embodiment, concrete grade is C30, and the thickness of layer of concrete is 30cm;
6) by traversing for the rail track 1 above beam slab 7 to be removed between two rail tracks 1;
In the present embodiment, the rail track 1 above beam slab 7 to be removed is moved to the position between two rail tracks 1 by the mode adopting the overall section of track laterally to pass;
7) jack is adopted from the two ends of beam slab 7 to be removed by beam slab 7 jack-up to be removed;
In the present embodiment, below the two ends of every sheet beam slab 7 to be removed, adopt 2 50t hydraulic jack will remove beam slab 7 jack-up;
8) fortune beam coaster 3 is pushed into the below of beam slab 7 to be removed along fortune beam orbit 4;
9) make jack release to be put by beam slab 7 to be removed on fortune beam coaster 3;
10) motor-driven chain hoist is set between fortune beam coaster 3 and two tension piles 5, and utilize motor-driven chain hoist by fortune beam coaster 3 and on beam slab to be removed 7 be pulled outwardly to assigned address along fortune beam orbit 4;
11) terminal block quarrel device is installed not removing beam slab and removed between beam slab;
12) the sheet stone foundation 6 outside former rail track 1 placement to be installed and be cut side block that wall 2 parallels of concrete side block is cut device 8;
13) remove beam slab place backfill ballast, and recover rail track 1;
14) in other enclosed point, step 6 is repeated)-13), to remove all beam slabs successively.
In the present embodiment, the beam slab below every bar rail track 1 is removed and is divided into 2 enclosed point constructions, and first time removes interstitial hole beam slab, and second time removes two lateral opening beam slabs;
In work progress, be divided into four enclosed point and carry out beam slab Demolition Construction:
First time is closed and will put 150 minutes, carries out moving outside the whole hole of uplink mesopore beam, ballast backfill, circuit resume operation;
Second time is closed will put 150 minutes, carries out moving outside the whole hole of the lateral opening beam of uplink two, ballast backfill, circuit resume operation;
Third time is closed and will put 150 minutes, carries out moving outside the whole hole of downlink mesopore beam, ballast backfill, circuit resume operation;
Close for 4th time and will put 150 minutes, carry out moving outside the whole hole of the lateral opening beam of downlink two, ballast backfill, circuit resume operation.
Claims (2)
1. a construction method is shifted out in the whole hole of the existing bridges and culverts of electric railway, it is characterized in that: it comprises the following step carried out in order:
1) in Existing Railway Bridges beam slab to be removed (7) both sides, every hole foundation soil in tension pile (5) is set respectively;
2) under every bar rail track (1) beam slab to be removed (7) place Existing Railway Bridges below build slabstone by laying bricks or stones with formation sheet stone foundation (6), then fill with the earthwork between sheet stone foundation (6) and tension pile (5) and form the earthwork and fill layer (10);
3) in the sheet stone foundation 6 away from tension pile 5 side, build the together concrete side block parallel with rail track 1 bearing of trend to be cut wall 2;
4) the upper laying one of layer (10) is filled from beam slab to be removed (7) to the fortune beam orbit (4) of tension pile (5) in sheet stone foundation (6) and the earthwork;
5) form layer of concrete transporting concreting in the space between the upper sleeper of beam orbit (4), and sleeper is embedded in layer of concrete;
6) by traversing for the rail track (1) of beam slab to be removed (7) top between two rail tracks (1);
7) jack is adopted from the two ends of beam slab to be removed (7) by beam slab to be removed (7) jack-up;
8) beam coaster (3) is pushed into beam slab to be removed (7) below along fortune beam orbit (4) will be transported;
9) make jack release to be put by beam slab to be removed (7) in fortune beam coaster (3);
10) fortune beam coaster (3) and tension pile (5) between motor-driven chain hoist is set, and utilize motor-driven chain hoist will transport beam coaster (3) and on beam slab to be removed (7) edge transport beam orbit (4) be pulled outwardly to assigned address;
11) terminal block quarrel device is installed not removing beam slab and removed between beam slab;
12) the sheet stone foundation (6) outside former rail track (1) placement is upper installs and be cut side block that wall (2) parallels of concrete side block is cut device (8);
13) remove beam slab place backfill ballast, and recover rail track (1);
14) in other enclosed point, step 6 is repeated)-13), to remove all beam slabs successively.
2. construction method is shifted out in the whole hole of the existing bridges and culverts of electric railway according to claim 1, it is characterized in that: described side block quarrel device (8) comprises many root posts (17) and many i iron (18); Wherein the bottom standoff distance of many root posts (17) is inserted in the preformed hole (19) in sheet stone foundation (6), and many i iron (18) levels overlay the inner side of many root posts (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060819.1A CN104652299B (en) | 2015-02-05 | 2015-02-05 | Construction method is shifted out in the whole hole of a kind of existing bridges and culverts of electric railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060819.1A CN104652299B (en) | 2015-02-05 | 2015-02-05 | Construction method is shifted out in the whole hole of a kind of existing bridges and culverts of electric railway |
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| Publication Number | Publication Date |
|---|---|
| CN104652299A true CN104652299A (en) | 2015-05-27 |
| CN104652299B CN104652299B (en) | 2016-05-11 |
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| CN201510060819.1A Active CN104652299B (en) | 2015-02-05 | 2015-02-05 | Construction method is shifted out in the whole hole of a kind of existing bridges and culverts of electric railway |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059668A (en) * | 2017-06-15 | 2017-08-18 | 中铁六局集团天津铁路建设有限公司 | The construction method of culvert cover plate is changed under railway contact line charged condition |
| CN107604823A (en) * | 2017-10-19 | 2018-01-19 | 中铁六局集团有限公司 | It is a kind of that the construction method for shipping beam is crossed by railway |
| CN109083149A (en) * | 2018-07-19 | 2018-12-25 | 中铁六局集团有限公司 | A kind of concreting mould bases for high slope large span side slope |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4477467B2 (en) * | 2004-10-13 | 2010-06-09 | 鉄建建設株式会社 | Bridge structure and its replacement method |
| JP4956332B2 (en) * | 2007-08-28 | 2012-06-20 | 鹿島建設株式会社 | Bridge girder replacement method |
| CN203411917U (en) * | 2013-06-18 | 2014-01-29 | 北京市政路桥管理养护集团有限公司 | Rapid beam descending mechanism based on bridge synchronous jacking and overall replacement technology |
| CN103938557A (en) * | 2014-03-11 | 2014-07-23 | 卢耒运 | Overpass bridge dismounting method |
| CN104099879A (en) * | 2014-07-24 | 2014-10-15 | 上海绿地建设(集团)有限公司 | Construction method for demolishing anti-collision walls |
-
2015
- 2015-02-05 CN CN201510060819.1A patent/CN104652299B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4477467B2 (en) * | 2004-10-13 | 2010-06-09 | 鉄建建設株式会社 | Bridge structure and its replacement method |
| JP4956332B2 (en) * | 2007-08-28 | 2012-06-20 | 鹿島建設株式会社 | Bridge girder replacement method |
| CN203411917U (en) * | 2013-06-18 | 2014-01-29 | 北京市政路桥管理养护集团有限公司 | Rapid beam descending mechanism based on bridge synchronous jacking and overall replacement technology |
| CN103938557A (en) * | 2014-03-11 | 2014-07-23 | 卢耒运 | Overpass bridge dismounting method |
| CN104099879A (en) * | 2014-07-24 | 2014-10-15 | 上海绿地建设(集团)有限公司 | Construction method for demolishing anti-collision walls |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107059668A (en) * | 2017-06-15 | 2017-08-18 | 中铁六局集团天津铁路建设有限公司 | The construction method of culvert cover plate is changed under railway contact line charged condition |
| CN107604823A (en) * | 2017-10-19 | 2018-01-19 | 中铁六局集团有限公司 | It is a kind of that the construction method for shipping beam is crossed by railway |
| CN109083149A (en) * | 2018-07-19 | 2018-12-25 | 中铁六局集团有限公司 | A kind of concreting mould bases for high slope large span side slope |
| CN109083149B (en) * | 2018-07-19 | 2023-08-04 | 中铁六局集团有限公司 | A concrete placement die carrier for high slope large-span side slope |
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| Publication number | Publication date |
|---|---|
| CN104652299B (en) | 2016-05-11 |
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