CN102691293A - Reinforcement construction method with soft foundation grouting in railway frame bridge jacking process - Google Patents
Reinforcement construction method with soft foundation grouting in railway frame bridge jacking process Download PDFInfo
- Publication number
- CN102691293A CN102691293A CN2012101893724A CN201210189372A CN102691293A CN 102691293 A CN102691293 A CN 102691293A CN 2012101893724 A CN2012101893724 A CN 2012101893724A CN 201210189372 A CN201210189372 A CN 201210189372A CN 102691293 A CN102691293 A CN 102691293A
- Authority
- CN
- China
- Prior art keywords
- frame bridge
- station track
- soft
- branch line
- soft foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a reinforcement construction method with soft foundation grouting in a railway frame bridge jacking process. The method comprises the following steps of: reinforcing soft foundations positioned below station tracks on the two sides of a frame bridge to be jacked on a station yard and a main station track in the middle of the frame bridge by virtue of a slant pouring method; and reinforcing soft foundations positioned below branch station tracks in the middle of the station yard by virtue of a direct pouring method. In the railway frame bridge jacking process, the slant pouring method and the direct pouring method are combined for reinforcing the soft foundations under the railway frame bridge below the multiple station tracks; as the speed of vertical pouring is high, the time for reinforcing each station track is only about 48 hours, so that the construction period can be shortened substantially; and thus the reinforcement construction method is applicable to electrified railway construction, and causes least interference on the normal operation of a railway line.
Description
Technical field
The invention belongs to the construction of railways technical field, particularly relate to soft basic grouting and reinforcing job practices in a kind of railway frame bridge jack-in process.
Background technology
Develop rapidly along with town and country construction; The recoverable amount of automobile increases year by year; So existing highway can't satisfy the requirement of traffic; Therefore just need under some existing railway lines, lay frame bridge sometimes, or existing old frame bridge is replaced with the new frame bridge, so that vehicle is current.At present; The method of under existing railway line, replacing old frame bridge with the new frame bridge adopts jacking usually; This method is earlier the soft foundation employing slip casting method of old frame bridge bottom to be reinforced; Existing railway line above reinforcing frame is built bridge simultaneously, the new frame bridge segmentation that utilizes many jack that are installed between old frame bridge and the new frame bridge will be positioned at existing railway line one side is then pushed up to existing railway line, simultaneously old frame bridge is ejected.But; There is following point in this job practices: the following time of existing railway line beyond frame bridge is positioned at the field, station; Maximum 6 strands of this existing railway line; Therefore usually adopt the requirement that can satisfy reinforced soft soil ground under the existing railway line from the method for the oblique slip casting in both sides of existing railway line, still, when frame bridge is positioned at station circuit following time; The circuit at place, field reaches ten multiplies owing to stand, and therefore can't add the soft foundation of the below, station track that is seated in the middle part as if the oblique slip casting rule of simple employing outside circuit.In addition, oblique slip casting method is to adopt the oblique punching grouting behind shaft or drift lining of spiral drilling machine, though the vibrations of this rig are little; Therefore little to the influence of existing railway line, still, because distance is less between the station track of middle part; So if still adopt oblique slip casting method will be difficult to operate; Particularly oblique slip casting method speed of application is slow, so cause long in time limitly, this is unallowed in construction of railways.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of speed of application fast, so soft basic grouting and reinforcing job practices in the railway frame bridge jack-in process of duration weak point.
In order to achieve the above object, soft basic grouting and reinforcing job practices comprises the following steps: in the railway frame bridge jack-in process provided by the invention
1) adopt oblique slip casting method to reinforce to the soft foundation that is positioned at the below, station track of treating both sides, jacking frame bridge place on the field, station;
Arbitrary branch line station track that 2) will be positioned at main line station track one side of a middle part, station is temporarily sealed, and adopts oblique slip casting method that the soft foundation that is positioned at this below, main line station track is reinforced then from this branch line station track;
3) adopt vertical slip casting method to reinforce to the soft foundation below the branch line station track that is positioned at a middle part, station; At first temporarily seal this branch line station track; The position surface of on this branch line station track, treating the jacking frame bridge is then laid the groined type operation platform and is fixed, and afterwards many vibrodrill standoff distances is arranged side by side the end surfaces at operation platform;
4) eyelet that utilizes many vibrodrills that the porous Grouting Pipe is passed on the operation platform inserts in the soft foundation downward vertically; If conflict mutually in the position of Kong Weiyu sleeper; Earlier this sleeper is removed; Thereby below sleeper and in the soft foundation in the outside, sleeper two ends, form a round, afterwards vibrodrill is moved forward to next station place and continue boring;
The feed pipe for mortar that 5) will link to each other with the slip casting jar links to each other with the porous Grouting Pipe upper end that is inserted in the soft foundation; Utilize grouting pump that the injection slurry in the slip casting jar is pressed in the porous Grouting Pipe then; Slurries are radiated in its soft foundation on every side through the eyelet on the porous Grouting Pipe, after the slip casting porous Grouting Pipe upper end closed are lived;
6) slurries of treating above-mentioned injection utilize vibrodrill that the porous Grouting Pipe is extracted from ground after ground solidifies; All reinforced soft soil grounds finish on this branch line station track; Then all vibrodrills and operation platform are moved to the next branch line station track of having sealed, and the branch line station track of consolidated subsoil is open-minded;
7) repeating step 3)-step 6), up to the ground stabilization process of accomplishing all branch line station tracks.
Distance in the described step 4) between the vertical adjacent holes center that forms is 1 meter, and radiation radius is 0.5 meter.
It is 2.44 meters in the beeline of outermost pitch-row between the center, station track that is adjacent in the vertical round that forms in the described step 4), in case influence the normal operation of this station track.
Soft basic grouting and reinforcing job practices is that the mode that adopts oblique slip casting and vertical slip casting to combine is reinforced soft foundation under the railway frame bridge that is positioned at below, multiply road in the railway frame bridge jack-in process provided by the invention; Because the speed of vertical slip casting is fast; Per share road consolidation time approximately only needs 48 hours; Therefore can shorten the construction period significantly, adapt to the electric railway construction, and disturb minimum the normal operation of existing railway line.
Description of drawings
Fig. 1 is branch line station track transversary sketch map in the soft basic grouting and reinforcing job practices work progress in the employing railway frame bridge jack-in process provided by the invention.
Fig. 2 is branch line station track vertical structure sketch map in the soft basic grouting and reinforcing job practices work progress in the employing railway frame bridge jack-in process provided by the invention.
Fig. 3 is for adopting the operation platform that uses in the soft basic grouting and reinforcing job practices work progress in the railway frame bridge jack-in process provided by the invention and going up vibrodrill structure vertical view.
Fig. 4 is in the soft basic grouting and reinforcing job practices work progress in the employing railway frame bridge jack-in process provided by the invention
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment soft basic grouting and reinforcing job practices in the railway frame bridge jack-in process provided by the invention is elaborated.
As shown in Figure 1, soft basic grouting and reinforcing job practices comprises the following steps: in the railway frame bridge jack-in process provided by the invention
1) adopt oblique slip casting method to reinforce to the soft foundation that is positioned at the below, station track of treating both sides, jacking frame bridge place on the field, station;
Arbitrary branch line station track that 2) will be positioned at main line station track one side of a middle part, station is temporarily sealed, and adopts oblique slip casting method that the soft foundation that is positioned at this below, main line station track is reinforced then from this branch line station track;
3) soft foundation to 1 below, branch line station track that is positioned at middle part, station adopts vertical slip casting method to reinforce; At first temporarily seal this branch line station track 1; The position surface of on this branch line station track 1, treating the jacking frame bridge is then laid groined type operation platform 2 and is fixed, and afterwards many vibrodrills 3 standoff distances is arranged side by side the end surfaces at operation platform 2;
4) eyelet that utilizes many vibrodrills 3 that the porous Grouting Pipe is passed on the operation platform 2 inserts in the soft foundation downward vertically, if conflict mutually in the position of Kong Weiyu sleeper 4, earlier this sleeper 4 is removed; Thereby below sleeper and in the soft foundation in the outside, sleeper two ends, form a round 5; Distance between adjacent holes 5 centers is 1 meter, and radiation radius is 0.5 meter, shown in label among Fig. 46; In addition; Be 2.44 meters in the beeline of outermost pitch-row between the center, station track that is adjacent in one round 5,, afterwards vibrodrill 3 moved forward to next station place and continue boring in case influence the normal operation of this station track;
The feed pipe for mortar that 5) will link to each other with the slip casting jar links to each other with the porous Grouting Pipe upper end that is inserted in the soft foundation; Utilize grouting pump that the injection slurry in the slip casting jar is pressed in the porous Grouting Pipe then; Slurries are radiated in its soft foundation on every side through the eyelet on the porous Grouting Pipe, after the slip casting porous Grouting Pipe upper end closed are lived;
6) slurries of treating above-mentioned injection utilize vibrodrill 3 that the porous Grouting Pipe is extracted from ground after ground solidifies; All reinforced soft soil grounds finish on this branch line station track 1; Then all vibrodrills 3 and operation platform 2 are moved to the next branch line station track of having sealed 1, and the branch line station track 1 of consolidated subsoil is open-minded;
7) repeating step 3)-step 6), up to the ground stabilization process of accomplishing all branch line station tracks 1.
Claims (3)
1. soft basic grouting and reinforcing job practices in the railway frame bridge jack-in process, it is characterized in that: described job practices comprises the following steps:
1) adopt oblique slip casting method to reinforce to the soft foundation that is positioned at the below, station track of treating both sides, jacking frame bridge place on the field, station;
Arbitrary branch line station track that 2) will be positioned at main line station track one side of a middle part, station is temporarily sealed, and adopts oblique slip casting method that the soft foundation that is positioned at this below, main line station track is reinforced then;
3) adopt vertical slip casting method to reinforce to the soft foundation below the branch line station track (1) that is positioned at a middle part, station; At first temporarily seal this branch line station track (1); The position surface of on this branch line station track (1), treating the jacking frame bridge is then laid groined type operation platform (2) and is fixed, and afterwards many vibrodrills (3) standoff distance is arranged side by side the end surfaces at operation platform (2);
4) eyelet that utilizes many vibrodrills (3) that the porous Grouting Pipe is passed on the operation platform (2) inserts in the soft foundation downward vertically; If conflict mutually in the position of Kong Weiyu sleeper (4); Earlier this sleeper (4) is removed; Thereby below sleeper and in the soft foundation in the outside, sleeper two ends, form a round (5), afterwards vibrodrill (3) is moved forward to next station place and continue boring;
The feed pipe for mortar that 5) will link to each other with the slip casting jar links to each other with the porous Grouting Pipe upper end that is inserted in the soft foundation; Utilize grouting pump that the injection slurry in the slip casting jar is pressed in the porous Grouting Pipe then; Slurries are radiated in its soft foundation on every side through the eyelet on the porous Grouting Pipe, after the slip casting porous Grouting Pipe upper end closed are lived;
6) slurries of treating above-mentioned injection utilize vibrodrill (3) that the porous Grouting Pipe is extracted from ground after ground solidifies; Going up all reinforced soft soil grounds up to this branch line station track (1) finishes; Then all vibrodrills (3) and operation platform (2) are moved to the next branch line station track of having sealed (1), and the branch line station track (1) of consolidated subsoil is open-minded;
7) repeating step 3)-step 6), up to the ground stabilization process of accomplishing all branch line station tracks (1).
2. soft basic grouting and reinforcing job practices in the railway frame bridge jack-in process according to claim 1 is characterized in that: the distance in the described step 4) between vertical adjacent holes (5) center that forms is 1 meter, and radiation radius is 0.5 meter.
3. soft basic grouting and reinforcing job practices in the railway frame bridge jack-in process according to claim 1 is characterized in that: be 2.44 meters in the beeline of outermost pitch-row between the center, station track that is adjacent in the vertical round (5) that forms in the described step 4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210189372.4A CN102691293B (en) | 2012-06-11 | 2012-06-11 | Reinforcement construction method with soft foundation grouting in railway frame bridge jacking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210189372.4A CN102691293B (en) | 2012-06-11 | 2012-06-11 | Reinforcement construction method with soft foundation grouting in railway frame bridge jacking process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102691293A true CN102691293A (en) | 2012-09-26 |
| CN102691293B CN102691293B (en) | 2014-06-25 |
Family
ID=46857019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210189372.4A Active CN102691293B (en) | 2012-06-11 | 2012-06-11 | Reinforcement construction method with soft foundation grouting in railway frame bridge jacking process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102691293B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239475A (en) * | 2015-11-04 | 2016-01-13 | 中铁六局集团有限公司 | Line reinforced structure in culvert jacking process under complex existing railway line |
| CN113846639A (en) * | 2021-11-16 | 2021-12-28 | 中铁北京工程局集团有限公司 | Construction method for reinforcing railway frame bridge by adopting soft foundation grouting in jacking process |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764286B (en) * | 2020-06-16 | 2021-04-02 | 中铁二十四局集团有限公司 | Frame bridge jacking construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100683589B1 (en) * | 2004-12-24 | 2007-02-15 | 한국철도기술연구원 | Amethod for solidification of railroad bridge and public works-connection part |
| CN101343861A (en) * | 2008-08-22 | 2009-01-14 | 中铁六局集团有限公司 | Construction method for replacing old frame bridge by new frame bridge in existing railway lines |
-
2012
- 2012-06-11 CN CN201210189372.4A patent/CN102691293B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100683589B1 (en) * | 2004-12-24 | 2007-02-15 | 한국철도기술연구원 | Amethod for solidification of railroad bridge and public works-connection part |
| CN101343861A (en) * | 2008-08-22 | 2009-01-14 | 中铁六局集团有限公司 | Construction method for replacing old frame bridge by new frame bridge in existing railway lines |
Non-Patent Citations (1)
| Title |
|---|
| 王强: "浅析顶进软土地基注浆施工", 《科技信息》, no. 22, 31 December 2010 (2010-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239475A (en) * | 2015-11-04 | 2016-01-13 | 中铁六局集团有限公司 | Line reinforced structure in culvert jacking process under complex existing railway line |
| CN113846639A (en) * | 2021-11-16 | 2021-12-28 | 中铁北京工程局集团有限公司 | Construction method for reinforcing railway frame bridge by adopting soft foundation grouting in jacking process |
| CN113846639B (en) * | 2021-11-16 | 2022-11-04 | 中铁北京工程局集团有限公司 | Construction method for reinforcing railway frame bridge by adopting soft foundation grouting in jacking process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102691293B (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103276639B (en) | Roadbed structure for deep soft soil region | |
| CN103485288B (en) | A kind ofly pass through both wired double-deck jacking culvert construction technology | |
| CN102352590A (en) | Method for splicing highfill roadbed by adopting pile-sheet retaining wall | |
| CN203960700U (en) | The closed road structure of stake holder U-lag | |
| KR101011502B1 (en) | Speedy Recovering Method for Concrete Track | |
| CN102277880B (en) | Large-sized box jacking control construction method capable of enhancing accuracy | |
| CN104153389A (en) | Construction method for prefabricated assembly type subway station | |
| CN107059496B (en) | A kind of track road-bridge transition section slip casting correction lifting method | |
| CN204185728U (en) | Ballast bed of track regulation repair structure | |
| CN104328730B (en) | The construction method of embedded reinforcement bitumen layer transformation cement concrete pavement | |
| CN108386202A (en) | City underground running tunnel list shield TBM constructions | |
| CN107191210A (en) | Shield tunnel anti-floating system and its construction method based on prestress anchorage cable | |
| CN103821060A (en) | Construction method of conventional expressway soft foundation treating technology | |
| CN109518544A (en) | A kind of subway precast track plate railway roadbed laying method | |
| CN102691293B (en) | Reinforcement construction method with soft foundation grouting in railway frame bridge jacking process | |
| CN103397581A (en) | Existing railway reinforcement construction method in jacking process of box body | |
| CA2848527C (en) | Railway track support system | |
| CN107060815A (en) | The iterative structure and its construction method of longitudinal concealed beam and shield duct piece in railway roadbed | |
| CN103967052B (en) | A kind of method of protecting the new and old frame core-tube system substrate discrepancy in elevation soil body | |
| CN201459525U (en) | Foundation structure at tunnel-to-bridge junction of high-speed railway in loess regions | |
| CN109355986A (en) | A kind of non-fragment orbit sedimentation regulation method based on rope saw cut | |
| CN103866788B (en) | A kind of method of pillar abutment scarp slope barricadeization transformation | |
| JP2012117330A (en) | Soil roadbed replacement method | |
| CN104793262A (en) | Stratum hierarchical displacement monitoring method | |
| CN104652299A (en) | Electrified railway existing bridge and culvert whole-hole moving-out construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |