CN206570811U - Existing bridge pile pulling device is passed through in weak soil shield driving area - Google Patents
Existing bridge pile pulling device is passed through in weak soil shield driving area Download PDFInfo
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- CN206570811U CN206570811U CN201720235220.1U CN201720235220U CN206570811U CN 206570811 U CN206570811 U CN 206570811U CN 201720235220 U CN201720235220 U CN 201720235220U CN 206570811 U CN206570811 U CN 206570811U
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- sleeve
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- stake
- inverted triangle
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Abstract
The utility model is related to a kind of weak soil shield driving area and passes through existing bridge pile pulling device, including crawler crane, reaction frame, full-sleeve machine, inverted triangle hammer and full-sleeve；The full-sleeve machine driving full-sleeve circumgyration incision sinks to original stake, and the full-sleeve is often saved sleeve pipe and is formed by connecting using screwed joint, and cutter head is installed in a full set of bottom of the tube；Hammered into shape between full-sleeve and original stake provided with inverted triangle；Crawler crane connects inverted triangle by steel wire rope and hammered into shape；Reaction frame is located between crawler crane and full-sleeve machine.The characteristics of the utility model has following and beneficial effect：Sink to the method that pile body is separated with the soil body and old stake is pulled out after antifriction using complete steel bushing, with the advantage such as stability is high, speed of application is fast.Meanwhile, construction quality is can guarantee that, ensures that successive projects construction application has good prospects.
Description
Technical field
The utility model is related to Soft Soil Area shield driving and passes through existing bridge pile pulling construction field, specifically Soft Soil Area
Shield driving through bridge pile pulling technology and construction method.
Background technology
As urbanization process constantly accelerates, urban track traffic facility ever more important.In subway line planning process,
Use existing arterial road lower room as far as possible in principle, but in subway tunnel shield work progress, tunnel is run into unavoidably
The pile foundation under existing highway bridge is needed to pass through.To make shield make smooth advances, it is necessary to carry out pulling out for tunneling shield front obstacle
Construction, this also turns into technique important in Urban Underground Passage mining process.
General pile pulling construction site is divided into underground, ground and several classes such as waterborne, for different situations have different schemes and
Pile pulling device, the pile foundation of such as bridge pier platform is pulled out and may carried out on the water, to be carried out pile pulling as counterforce device by ship etc. and be applied
Work；And land pile pulling may then use special pile-drawing machine, crane and jack etc..Top or week when the pile foundation to be pulled out
When the building enclosed is more important, in order to not influence the safety of upper building or adjacent buildings, also to use to removing stake
The underpinning technique of base section ground.
Utility model content
Tunnel needs are run into the subway tunnel shield work progress of soft clay area from the pile foundation under existing highway bridge in order to overcome
The difficult point for passing through, making shield make smooth advances, the utility model provides that a kind of stability is good, strong environmental adaptability Soft Soil Area
Shield driving pile pulling device and construction method
To realize above-mentioned technical purpose, the utility model employs following technical scheme：
Existing bridge pile pulling device is passed through in a kind of weak soil shield driving area, including crawler crane, reaction frame, full-sleeve machine, is fallen
Triangle is hammered into shape and full-sleeve；The full-sleeve machine driving full-sleeve circumgyration incision sinks to original stake, and it is equal that the full-sleeve often saves sleeve pipe
It is formed by connecting using screwed joint, cutter head is installed in a full set of bottom of the tube；Hammered into shape between full-sleeve and original stake provided with inverted triangle；Carry out
Band is hung connects inverted triangle hammer by steel wire rope；Reaction frame is located between crawler crane and full-sleeve machine.
As preferred：The crawler crane is also associated with grab bucket by steel wire rope.
The characteristics of the utility model has following and beneficial effect：Sunk to using complete steel bushing and separate pile body with the soil body
The method for pulling out old stake after antifriction, with the advantage such as stability is high, speed of application is fast.Meanwhile, construction quality is can guarantee that, is ensured
Successive projects construction application has good prospects.
Brief description of the drawings
Fig. 1 is that bridge Construction Technology of Pile Pulling schematic flow sheet is got in Soft Soil Area shield driving.
Fig. 2 hangs in schematic diagram for what steel was carved.
Fig. 3 removes obstacles to be schematically represented for grab bucket to be intended to.
Description of reference numerals：Carry out suspender belt 1, counter-force seat 2, full-sleeve machine 3, inverted triangle hammer 4, full-sleeve 5, reaction plate 6, grab bucket
7th, original stake 8.
Embodiment
The utility model is described further with reference to embodiment.The explanation of following embodiments is only intended to help and managed
Solve the utility model.It should be pointed out that for those skilled in the art, not departing from the utility model principle
On the premise of, some improvement and modification can also be carried out to the utility model, these are improved and modification also falls into the utility model
In scope of the claims.
As shown in Figure 1 to Figure 3, existing bridge pile pulling device is passed through in the weak soil shield driving area of the present embodiment：Including crawler belt
Hang 1, reaction frame 2, full-sleeve machine 3, inverted triangle hammer 4 and full-sleeve 5；The driving of full-sleeve machine 3 circumgyration incision of full-sleeve 5 is sunk to
Original stake 8, the full-sleeve 5 is often saved sleeve pipe and is formed by connecting using screwed joint, and cutter head is installed in the bottom of full-sleeve 5；Complete
Provided with inverted triangle hammer 4 between sleeve pipe 5 and original stake 8；Crawler crane 1 connects inverted triangle hammer 4 by steel wire rope；Reaction frame 2 is located at shoe
Band is hung between 1 and full-sleeve machine 3.Described 360 degree of full circle swinging jacketing machines driving, 360 degree of circumgyration incisions of steel sleeve are sunk to, and carry out stake
Body efficiently separates with the soil body and is aided with special equipment and steel wire rope decentralization is firmly latched and then matched somebody with somebody with large lifting equipment with pile body
Old stake is pulled out in conjunction.The moment of torsion and pressing-in force that on the one hand the steel sleeve provides top drive pass to cutter head, another
Aspect plays supporting hole wall during drilling, prevents the effect of hole wall collapse.Steel sleeve single-unit length 6m, according to actual stake
Long various combination, and flexibly allocated in practice of construction, steel bushing pipe diameter is flexibly chosen according to actual conditions.Often section steel sleeve is equal
It is formed by connecting using screwed joint, the carbide button installed in steel bushing bottom of the tube on cutter head, cutter head can be used for passing through soil layer, concrete
And other barriers.The crane gear and Current Collector Sleave mainly include crane, crawler crane and steel wire rope, according to actual conditions
Configure dimension.
The construction process that bridge pile pulling is got in Soft Soil Area shield driving is as shown in Figure 1.
Specific implementation is as follows：
(1) preparation of construction
Need to carry out operation platform before pile pulling to meet the construction requirement of 360 degree of full circle swinging jacketing machines 3, according to the construction of engineering
Feature and field condition organizing construction personnel and plant equipment are marched into the arena, and personnel are giveed training and told somebody what one's real intentions are and its equipment is adjusted
Examination；Access simultaneously interim with water and electricity consumption.
(2) surveying setting-out
Remove after bridge panel, according to former pile foundation construction figure, the coordinate of measurement record stake carries out setting-out and determines to pull out
The pile foundation scope and quantity of processing, and it is numbered, implement in place to draft rational pile pulling order and pile pulling device
Pile pulling.
(3) full circle swinging equipment is in place, fixed
At the positioning of full circle swinging jacketing machine 3 to stake position, positioning is directed at Zhuan Wei centers using cross location-plate, and (plan is pulled out drilling and filled
Note stake is concentrically justified with borehole cleaning), full circle swinging jacketing machine 3 is moved in place.
Positioned according to live unwrapping wire, full-rotating drill is fixed on drilled pile overcentre, and with headstock, operating room phase
Connect；Then reaction frame 2 (effect of reaction frame is to work as in rig full circle swinging drilling process to prevent machine from twisting), counter-force are installed
The parked crawler crane 1 in other end of frame 2, the crane crawler belt pushes down reaction frame 2, and crane can coordinate installation steel bushing and pull out simultaneously
Stake work.
(4) full convolution jacketing machine 3 drives steel sleeve to sink to
Steel sleeve 5 is hung under the cooperation of crawler crane 1 in full-sleeve turn-around machine 3, adjusts perpendicularity of machine body, and embrace fuselage
Bind round system centre keeps vertical line direction consistent with borehole cleaning center.Encircled driving steel sleeve 5 rotates and sunk by full circle swinging jacketing machine 3
Enter.The precision that sleeve pipe press-in is often saved in process of press in will all directly affect the construction quality of drilling, often saves sleeve pipe and is put into clamp dress
Put, shrink clamp hydraulic cylinder, the vertical precision of sleeve pipe is adjusted in the range of requirement using rig and guide deviation-correcting device.Bore
The level monitoring system test sleeve pipe perpendicularity carried at any time using equipment during entering, and hung down per Kong Sanci at two of sleeve pipe
Nogata checks control to theodolite progress perpendicularity is set up.
The driving rotation of steel sleeve 5 is encircled by full circle swinging jacketing machine 3 and sinks to desired depth, generally 3 under the absolute altitude of shield bottom
Rice, pile body and pile peripheral earth frictional resistance are significantly reduced so as to realize.
(5) cast-in-situ bored pile is pulled out
Be relatively large in diameter in view of this engineering pile foundation, the factor such as long deeper, the whole stake withdrawal resistance of stake is larger, whole pile pulling process I
Intend using segmentation amputation, segmentation hangs, repeated mode.
The cut-out of original stake 8：Steel sleeve 5 is sunk to after desired depth, is realized the separation antifriction of stake week, is then transferred special
Inverted triangle hammers 4 (weight 5t, long 5m) into shape in sleeve pipe, cuts between original stake 8 and the pipe of steel bushing 5, driving is encircled by full circle swinging jacketing machine 3
Steel sleeve 5 is rotated, and original eccentric rotary of stake 8 is driven by inverted triangle hammer 4, and original stake 8 is cut off in segmentation, and steel reinforcement cage is also twisted off,
The control pressure count value carried by observing full circle swinging jacketing machine 3 reduces, it is determined that having disconnected.According to construction experience, there is reinforcing bar
The old stake of cage is voluntarily broken into 7 meters or so, and the old stake of no-reinforcing-bar cage section is voluntarily broken into shorter, or even crushes.
Remove original stake 8：When original stake 8 and sleeve pipe 5 rotate simultaneously, inverted triangle hammer 4 is taken down, and transfer steel wire rope will
The part stake lock for being truncated and having departed from whole pile body is firmly disposably extracted；Implement completion top pile body to pull out.Such as exist
Fracture, crushing etc. occur for pile body during pulling out, and grab bucket 7 can be equipped with using crane and be grabbed except residue pile body.
Press-in cleaning：Before original stake 8 confirms well, the sand in cleaning sleeve pipe.Removed with grab bucket 7 in work progress
The soil fallen into sleeve pipe exposes pile crown again.
All remove original stake：Position is pulled out into the lower end rotary digging of steel sleeve 5 to original design, when original stake 8 and set
Pipe 5 rotates simultaneously when, remaining original is taken out with grab bucket 7.
After the circumgyration incision barrier certain depth of steel sleeve 5, loop wheel machine just can be used to be removed using punching grab bucket.Remove fragment
During pile body, such as rush grab bucket and grab except difficulty, can use instead to grab after block stamp is crushed again and remove.
Act that to pull out speed unsuitable too fast during pile pulling, while slowly exerted oneself with crane gear, while with full circle swinging jacketing machine 3
The rotation of steel sleeve 5 is driven to reduce pile body friction stree.The old stake 8 pulled out neatly is stacked at scene, after certain amount is added up i.e.
Shi Qingli or outward transport.
(6) stake holes is backfilled
After original stake 8 is pulled out, stake holes must be backfilled.The quality of backfill is critically important, must ensure that backfill material should reach
Certain intensity, intensity is advisable with being slightly above undisturbed soil, it is desirable to closely knit, uniform.Plan is mixed uniform soil cement using system and returned
Fill out.The mixing of soil cement is to stir to form repeatedly using 7~10% cement of incorporation in general element soil.Stake holes cement earthen backfill
It is required that as follows：
Cubic metre of earth selection must not have the block more than more than 5cm, must not there is an admixtures such as building waste, cement use 32.5 with
On Portland cement.
Cement mixing content control adds 130~180kg cement or so, strength control in 7~10% or so, i.e., every cube soil
In 0.5mPa or so.Turned during stirring using digging machine, it is desirable to stir, cement block heap knot phenomenon must not occur, soil cement is stirred
After mixing must cement initial set before use, this engineering construction require soil cement with mix with.
Pulling out for steel sleeve 5 synchronous with backfilling working must be carried out in backfilling process, is first filled out and is pulled out afterwards, it is impossible to disposably fills out hole
It is full to pull out sleeve pipe again, to prevent from the earthwork loosening of backfill extracting during steel sleeve 5.When first removing pile pulling using grab bucket 7 before backfill
The loose ground fallen into steel sleeve, then successively inserts the good soil of requirement, and the depth of measurement backfill in time, often backfills 2~3m again
1.5~2.5m of steel sleeve must be extracted after height, but to ensure must be with heavy tamping for several times after the completion of often backfilling one layer, it is ensured that backfill
It is closely knit and remain that the bottom of steel sleeve 5 is following in backfill material.
(7) steel sleeve is extracted in jacketing machine driving
Rotation is driven to extract steel sleeve 5 by jacketing machine 3.Equipment is displaced at next position.
In addition, being reply emergency case, the counter-measure of FAQs is as follows：
The difficulty and risk of such engineering pile pulling are larger, and pile body is expanding, pile body inclines because construction reason there may be for former pile foundation
The quality problems such as tiltedly, or because after construction because of situations such as reasons such as geology, the hydrology, the time limits caused by local broken, fracture or
During constructing situations such as pile body is pulled off still inevitably occurs for pile pulling, can for these Difficult factors that may be present
Use following measures in advance：
(1) steel bushing using 100cm bigger than stake diameter is intended, effectively pile body is expanding under prevention conventional construction method or tilts
Rate is excessive to be caused to cut or be cut to the consequence that can not be pulled out outside sleeve pipe by steel sleeve；
(2) pile body causes to remain in old stake in hole by chip or local broken, fracture etc. and barrier is real by grabbing bucket
Apply thorough removing；
(3) during pile pulling by steel wire rope by special equipment displacement pile bottom, lock point design is entered in pile body bottom from bottom
Row, which is hung, to be pulled out, and is met non-reinforced an of bottom and is pulled out tension requirement, accordingly even when pile body has situations such as broken part, fracture
It is equally reached the purpose that pile pulling is removed obstacles；
(4) if during pile pulling, occurring the fracture of rope tool or destroying, the top soil body can be removed with punching grab bucket, it is real
Apply secondary pile pulling；It can still continue to implement to pull out stake；
(5) secondary positioning correcting pile center can be implemented by stake bit shift or pile body too inclination conditions such as occur, can be by
Steel sleeve separation is so as to realize that whole stake is all removed.
Claims (2)
1. existing bridge pile pulling device is passed through in a kind of weak soil shield driving area, it is characterised in that：Including crawler crane (1), reaction frame
(2), full-sleeve machine (3), inverted triangle hammer (4) and full-sleeve (5)；Described full-sleeve machine (3) driving full-sleeve (5) circumgyration incision sinks
Enter original stake (8), the full-sleeve (5) is often saved sleeve pipe and is formed by connecting using screwed joint, and knife is installed in full-sleeve (5) bottom
Head；Provided with inverted triangle hammer (4) between full-sleeve (5) and original stake (8)；Crawler crane (1) connects inverted triangle by steel wire rope and hammered into shape
(4)；Reaction frame (2) is located between crawler crane (1) and full-sleeve machine (3).
2. existing bridge pile pulling device is passed through in weak soil shield driving area according to claim 1, it is characterised in that：It is described to carry out
Band hangs (1) and is also associated with grabbing bucket (7) by steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235220.1U CN206570811U (en) | 2017-03-10 | 2017-03-10 | Existing bridge pile pulling device is passed through in weak soil shield driving area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235220.1U CN206570811U (en) | 2017-03-10 | 2017-03-10 | Existing bridge pile pulling device is passed through in weak soil shield driving area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206570811U true CN206570811U (en) | 2017-10-20 |
Family
ID=60056859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720235220.1U Expired - Fee Related CN206570811U (en) | 2017-03-10 | 2017-03-10 | Existing bridge pile pulling device is passed through in weak soil shield driving area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206570811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978807A (en) * | 2017-03-10 | 2017-07-25 | 浙江大学城市学院 | Existing bridge pile pulling device and construction method are passed through by a kind of weak soil shield driving area |
| CN113529714A (en) * | 2021-07-17 | 2021-10-22 | 南京桥新建设有限公司 | Construction method for replacing old pile |
-
2017
- 2017-03-10 CN CN201720235220.1U patent/CN206570811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978807A (en) * | 2017-03-10 | 2017-07-25 | 浙江大学城市学院 | Existing bridge pile pulling device and construction method are passed through by a kind of weak soil shield driving area |
| CN113529714A (en) * | 2021-07-17 | 2021-10-22 | 南京桥新建设有限公司 | Construction method for replacing old pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20210310 |