CN209538258U - A kind of construction equipment for replacing bored concrete pile - Google Patents
A kind of construction equipment for replacing bored concrete pile Download PDFInfo
- Publication number
- CN209538258U CN209538258U CN201820911826.7U CN201820911826U CN209538258U CN 209538258 U CN209538258 U CN 209538258U CN 201820911826 U CN201820911826 U CN 201820911826U CN 209538258 U CN209538258 U CN 209538258U
- Authority
- CN
- China
- Prior art keywords
- old
- casing
- pile body
- pile
- interior casing
- 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.)
- Active
Links
Landscapes
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to the technical fields of bored concrete pile, disclose a kind of construction equipment for replacing bored concrete pile, for old pile body to be pulled out, and the concrete perfusion in pulling out the old stake holes after old pile body, to form new pile body；Including full-rotating drill, using old pile body periphery is sunk under full-rotating drill so that old pile body be separated from soil casing, will be separated from soil after old pile body integrally extract and be used to transfer the crane of steel reinforcement cage, the hydraulic vibration driver that is placed in the outer casing in old stake holes, is placed in the interior casing in outer casing and is used to be put under outer casing and interior casing in old stake holes in old stake holes；There is gap, steel reinforcement cage is placed in interior casing, and the bottom of interior casing is embedded in the lower section of the bottom of old stake holes between interior casing and outer casing.Entirety pulls out old pile body, is conducive to recycle and manage；Using inside and outside double casings, the collapse hole phenomenon of backfill section is effectively prevented；The replacement of old pile body Yu new pile body is realized in urban project update by the construction equipment.
Description
Technical field
The utility model relates to replace the technical field of bored concrete pile, in particular to a kind of construction equipment for replacing bored concrete pile.
Background technique
With the needs of urban construction and development, the land used for Yingcheng City construction can be gradually decreased, and therefore, urban renewal is
The trend of urban modernization construction, still, there are the old foundation piles of a large amount of existing buildings in the place of this intermediate item, new construction occur
Project pile foundation is overlapping with old stake or partly overlapping phenomenon occurs.
Currently, the processing of stake old for urban renewal project, under normal circumstances, using impact crushing method, using jump bit
The concrete of old stake and steel reinforcement cage are crushed from top to bottom, in such method impact process, often need to replacement electromagnet,
Ensure the absorption of old reinforcing bar, cumbersome, speed of application is slow, and processing time length, comprehensive cost are high.
In addition, old stake is constructed after abolishing when new pile, the backfill in old stake holes easily generates collapse hole situation, makes new foundation pile
Construction quality and pile quality be difficult to be effectively ensured.
Utility model content
The purpose of this utility model is to provide a kind of construction equipments for replacing bored concrete pile, it is intended to solve city in the prior art
City's project updates, it is difficult to realize the problem of old pile body and new pile body are replaced.
The utility model is realized in this way a kind of construction equipment for replacing bored concrete pile, for old pile body to be pulled out, and
Concrete perfusion in old stake holes after pulling out old pile body, to form new pile body；It is bored including full-rotating drill, using the full circle swinging
The old pile body periphery is sunk under machine so that the old pile body be separated from soil casing, will be separated from soil after the old stake
Body is integrally extracted and is used for the crane of decentralization steel reinforcement cage in the old stake holes, the outer casing being placed in the old stake holes, is placed in
Interior casing in the outer casing and hydraulic in the old stake holes for will be put under the outer casing and the interior casing
Vibration hammer；There is gap, the steel reinforcement cage is placed in the interior casing, the interior shield between the interior casing and the outer casing
The bottom of cylinder is embedded in the lower section of the bottom of the old stake holes.
Further, the pile crown for abolishing the old pile body, manifests pile crown reinforcing bar, and the pile crown reinforcing bar is connected with connection
Plate, the connecting plate is by wirerope connection in the transverse bar of lateral arrangement；The transverse direction is driven using the full convolution drilling machine
Bar rotation, so that the old pile body rotates in described sleeve pipe, until the old pile body is separated from soil.
Further, the connecting plate is equipped with multiple buckles, when the fixed link is equipped with multiple liftings for the crane
The lifting lug of stress；The buckle and the lifting lug are fixed in the both ends of wirerope respectively.
Further, the hydraulic vibration driver is equipped with the hydraulically operated fixture for clamping the outer casing and the interior casing；
When the hydraulically operated fixture clamps the outer casing or the interior casing, the outer casing and the interior casing are perpendicular in institute respectively
State ground configuration.
Further, the hydraulically operated fixture includes two opposite arrangements and can move towards or be away from each other mobile clamping
Plate, the grip block have the clamping face for clamping the interior casing, and the clamping face is in vertical distribution.
Further, along direction, the thickness of the grip block gradually decrease from top to bottom.
Further, the location structure includes multiple locating rods, and the locating rod extends to institute through the outer casing
It states gap and forms positioning end；When the interior casing sinks to the inside of the outer casing, multiple locating rods are around described interior
Casing arrangement, the positioning end of the locating rod contradict the outer surface of the interior casing respectively.
Further, a kind of construction equipment for replacing bored concrete pile includes the soil for excavating the inside of the interior casing
The Spiral digging machine of body, the soil body that the Spiral digging machine excavates the inside of the interior casing form new stake holes, and the crane transfers the steel
Muscle cage is to the new stake holes.
Further, the new stake holes is embedded with perfusion conduit, and one end of the perfusion conduit is buried in the new stake holes,
The other end of the perfusion conduit extends outside the new stake holes, and the other end of the perfusion conduit is installed on for controlling perfusion
The first watering hopper construction of the groundwater increment of concrete.
Compared with prior art, a kind of construction equipment for replacing bored concrete pile provided by the utility model, is bored using full circle swinging
Machine combination loop wheel machine integrally pulls out old pile body, and work efficiency is higher, and the recycling and management of advantageous building waste on site, to ring around
Border influence is small, realizes environmentally protective construction；Old stake holes is backfilled, the hidden danger of quality of new pile pore-forming is not only reduced, also for
Large-scale rotary digging construction equipment machine-walking provides good site condition；Interior casing, shape are sunk to by hydraulic vibration driver vibration
At new stake holes, using inside and outside double casing construction technologies, interior casing effectively prevents the collapse hole phenomenon of backfill section, improves interior
The efficiency and quality of shield-tube embedment finally lift steel reinforcement cage and filling concrete, form new pile body, pass through this construction party
Method, it is ensured that and improve the pile quality of new pile body.
Detailed description of the invention
Fig. 1 is the signal that a kind of new stake holes of construction equipment for replacing bored concrete pile provided by the embodiment of the utility model is formed
Figure；
Fig. 2 is a kind of solid for hanging out old pile body of construction equipment for replacing bored concrete pile provided by the embodiment of the utility model
Schematic diagram；
Fig. 3 is the connection that a kind of old pile body of construction equipment for replacing bored concrete pile provided by the embodiment of the utility model is pulled out
The stereoscopic schematic diagram of structure；
Fig. 4 is a kind of the inbuilt vertical of double casings of construction equipment for replacing bored concrete pile provided by the embodiment of the utility model
Body schematic diagram.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment；In retouching for the utility model
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore position pass is described in attached drawing
The term of system only for illustration, should not be understood as the limitation to this patent, for those of ordinary skill in the art and
Speech, can understand the concrete meaning of above-mentioned term as the case may be.
The realization of the utility model is described in detail below in conjunction with specific embodiment.
Referring to Fig.1 shown in -4, preferred embodiment is provided for the utility model.
A kind of construction equipment for replacing bored concrete pile provided by the utility model, the pile quality for solving new pile body are bad
The problem of.
A kind of construction equipment for replacing bored concrete pile, including full-rotating drill 50, crane 40, outer casing 12 and hydraulic vibration
Hammer 60；Full-rotating drill 50 is separated from soil old pile body, and 30 entirety of old pile body after crane 40 will be separated from soil is extracted, and hangs
Vehicle 40 is subsequently used for decentralization steel reinforcement cage, and hydraulic vibration driver 60 sinks to interior casing 10 for shaking.
After old pile body 30 is pulled out, old stake holes 31 is formed；Old stake holes 31 backfills, and forms backfill position；It first sinks and sets outer casing 12,
Interior casing 10 is sunk to again and the casing 10 in surrounding of outer casing 12, there is gap, interior shield between interior casing 10 and outer casing 12
The depth that cylinder 10 is sunk to is greater than the depth of old stake holes 31；After 40 vertical lower steel reinforcement cage of crane, filling concrete is carried out, is formed new
Pile body
A kind of construction equipment of above-mentioned replacement bored concrete pile integrally pulls out old pile body in conjunction with loop wheel machine using full-rotating drill 50
30, work efficiency is higher, and the recycling and management of advantageous building waste on site, small to surrounding environment influence, realizes environmentally protective
Construction；Old stake holes 31 is backfilled, the hole quality hidden danger of new stake holes 11 is not only reduced, is also large-scale rotary digging construction equipment
Machine-walking provides good site condition；Interior casing 10 is sunk to by the vibration of hydraulic vibration driver 60, new stake holes 11 is formed, adopts
With inside and outside double casing construction technologies, interior casing 10 effectively prevents the collapse hole phenomenon of backfill section, improves interior casing 10 and buries
If efficiency and quality, finally lift steel reinforcement cage and filling concrete, form new pile body, pass through this construction method, it is ensured that
And improve the pile quality of new pile body.
Before old pile body 30 is pulled out, cushion cap concrete around the pile crown and pile crown of old pile body 30 is abolished first, is dug out
Pile crown reinforcing bar 32；It is welded by connecting plate 34 and pile crown reinforcing bar 32, convenient for pulling out for old pile body 30.
Furthermore pile crown reinforcing bar 32 is welded with connecting plate 34；The lower sinking sleeve of full-rotating drill 50 is covered to the bottom of old pile body 30
The top of pipe is equipped with fixed link 36, and fixed link 36 is across the top of casing；Fixed link 36 and connecting plate 34 pass through a plurality of wirerope
35 connections；Under the action of full-rotating drill 50, it is separated from soil old pile body 30, after old pile body 30 loosens completely, used
Crane 40 slings fixed link 36, and fixed link 36 drives connecting plate 34 by wirerope 35, to drive old pile body 30 is whole to pull out
Out；The work efficiency that pile body 30 old in this way is pulled out is high, also, the recycling and management of advantageous building waste on site.
Alternatively, connecting lifting lug 37 after old pile body 30 loosens completely using the suspender of crane 40, being driven by wirerope 35
Connecting plate 34, to drive old pile body 30 is whole to extract.
Before full-rotating drill 50 is in place, place around smooth old pile foundation, so that full-rotating drill 50 carries out operation in place.
Buildings in general pile foundation mostly uses pile for prestressed pipe and bored concrete pile, it is 500 that pile for prestressed pipe diameter is common,
600mm, bored concrete pile foundation stake diameter are generally 600,800mm, big stake diameter about 1000,1200mm or so.
Determine that the diameter of 50 casing of full-rotating drill, casing diameter are bigger than the stake diameter of old pile body 30 according to the diameter of old pile foundation
400mm。
The two sides of full-rotating drill 50 are respectively equipped with counter-force seat 70, and 70 pairs of full-rotating drills 50 of counter-force seat play support and make
With.
Connecting plate 34 is equipped with multiple buckles 33, and fixed link 36 is equipped with the lifting lug 37 of multiple stress when lifting by crane for crane 40；
The both ends difference fixed card buckle 33 and lifting lug 37 of wirerope 35；Under the action of buckling 33 with lifting lug 37, it is convenient for wirerope 35
Install, meanwhile, wirerope 35 can be recycled；In addition, under the cooperation of each buckle 33, lifting lug 37 and wirerope 35, old stake
Body 30 is pulled out more stable, and working security is improved.
Connecting plate 34 has front and the back side, and pile crown reinforcing bar 32 includes a plurality of reinforcing rod, adjacent reinforcing rod dislocation welding
The front and back of connecting plate 34；Two-sided welding helps to enhance the stability that pile crown reinforcing bar 32 and connecting plate 34 weld, and ensures
Old pile body 30 is pulled out.
When carrying out the backfill of old stake holes 31, if being backfilled using soil-cement 20, water in old stake holes 31 without more ponding
Mud incorporation is 5%, it is ensured that backfill intensity avoids backfill section uneven, loose easy collapse hole, to guarantee the pile quality of new pile.
If having more ponding in old stake holes 31, backfilled using graded broken stone, it is ensured that backfill intensity avoids backfill section not
, loose easy collapse hole, to guarantee the pile quality of new pile.
Hydraulic vibration driver 60 is equipped with hydraulically operated fixture 61, and hydraulically operated fixture 61 is for clamping interior casing 10；When hydraulically operated fixture 61 presss from both sides
When holding interior casing 10, interior casing 10 is perpendicular in ground configuration；To enhance the up rightness that interior casing 10 sinks.
Furthermore hydraulic vibration driver 60 is equipped with two groups of hydraulically operated fixtures 61, and two groups of hydraulically operated fixtures 61 are in opposite and are in same level
Face arrangement；Hydraulically operated fixture 61 include two towards or away from from grip block, grip block has folder for contradicting interior casing 10
Face is held, clamping face is in vertical distribution；From top to bottom, the thickness of grip block gradually decreases；In this way, while reducing using material
The contact area for increasing grip block and interior casing 10, enhances the clamping effect of grip block.
It is assembled by Hydraulic Elements and grip block, realizes that hydraulic control grip block is mobile, realize that internal casing 10 is pressed from both sides
It holds；Two grip blocks can move towards or be away from each other the mobile internal casing 10 of realization and be clamped；In addition, only control one presss from both sides
It is mobile to hold plate, another grip block is stood, and realizes that internal casing 10 is clamped；Various ways guarantee pulling out for old pile body 30.
Outer casing is equipped with multiple positioning bolts 13, and multiple positioning bolts 13 are two-by-two in positioned opposite；Positioning bolt 13 runs through
Outer 12 ecto-entad of casing is disposed to extend；When interior casing 10 sinks to the inside of outer casing 12, two positioning bolts contradict respectively
The side wall of interior casing 10；Interior casing 10 and outer casing 12 keep the positioning of interior casing 10 quasi- under the mating reaction of positioning bolt 13
Really, the vertical control construction effect that interior casing 10 sinks is more preferable.
Outer casing is set there are four positioning bolt 13, and two positioning bolts 13 are in positioned opposite and are formed in same level
Positioning bolt group, the perpendicular intersection arrangement of two groups of positioning bolt groups；When interior casing 10 sinks to the inside of outer casing 12, four fixed
Position bolt 13 contradicts the side wall of interior casing 10 respectively；The mating reaction of interior casing 10 and outer casing 12 in four positioning bolts 13
Under, make the accurate positioning of interior casing 10, the vertical control construction effect that interior casing 10 sinks is more preferable.
The depth ratio of depth and old stake holes 31 that interior casing 10 sinks is 12:10；When new 11 pore-forming of stake holes, by mud balance
It suitably tunes up, to play reinforcement effect to backfill position.
New stake holes is embedded with perfusion conduit, and one end that conduit is perfused is buried in new stake holes 11, and depth of burying control is in 2-
6m；The other end of perfusion conduit extends outside new stake holes 11, and the other end that conduit is perfused is installed on first watering hopper, passes through first material filling
Bucket realizes the control of the groundwater increment of concrete perfusion；In this way, the groundwater increment convenient for understanding concrete, avoids wasting.
From top to bottom, radial extension gradually decreases first watering hopper；Enhance the flow velocity of concrete perfusion, improves working efficiency.
Specifically, the height that lining rope detection concrete rises is used for multiple times, grasps concrete at any time during filling concrete
Fluence is poured, prevention collapse hole phenomenon occurs, meanwhile, avoid perfusion waste.
Filling concrete process is carried out continuously, intermediate uninterrupted；It avoids perfusion conduit that plugging occurs, causes perfusion accident.
New stake holes 11 forms irrigating region, and irrigating region and backfill position are in intersection；Complete bored concrete pile more in this way
It changes, while saving place, promotes the pile quality of new pile body.
The construction procedure of reinforcing bar cage hoisting and filling concrete is as follows:
1), steel reinforcement cage main reinforcement welding is connected using mechanical sleeve, to guarantee main reinforcement protective layer thickness, steel reinforcement cage each week
Concrete protective block is arranged in side spacing 3-5m.
2), steel reinforcement cage is hung using crane 40, and when lifting is directed at hole location, is hung and is directly helped steady, slowly transfers.Cage body, which is transferred to, to be set
It after counting position, is fixed in aperture using cage body limiting device, prevents steel reinforcement cage from occurring altering under floating when concrete is perfused
3) catheter installation, is perfused.Before perfusion, the suitable conduit of diameter is selected；Before downcomer, every section conduit is carried out detailed
It checks, the sealing water pressure test need to be done when using for the first time；Catheter connector bit encryption seal and coating butter, it is ensured that sealing can
It leans on, conduit bottom is from bottom hole 300-500mm.When transferring conduit, tune, which connects, matches catheter length.
4), before perfusion, after borehole cleaning, water proof plug is put into conduit, water proof plug uses rubber ball, installs first watering
Hopper covers sealing baffle, then carries out concrete material perfusion.To ensure first watering quality, guarantee concrete first watering buried depth 0.8
Meter or more, suitable hopper is measured using side and carries out first watering.
5), during filling concrete, concrete lifting height is detected through common lining rope, promotes disassembly conduit in due course, conduit buries
Deep control is forbidden conduit bottom end proposing concrete face in 2-6m；Concrete pouring is carried out continuously, and to avoid plugging, causes perfusion thing
Therefore.
6) it, sets special messenger to measure depth of tremie and manage the height difference in inside and outside concrete face, fills in Underwater Concrete casting record, grasp at any time every
Pile concrete pours fluence, and prevention collapse hole phenomenon occurs.
7), consider that stake top has certain laitance, the superfilled 80~100cm of height of stake top concrete, to guarantee stake top concrete strength, simultaneously
It avoids again superfilled too many and causes to waste.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of construction equipment for replacing bored concrete pile, which is characterized in that for pulling out old pile body, and after pulling out old pile body
Concrete perfusion in old stake holes, to form new pile body；Including full-rotating drill, under sink to the old pile body periphery so that described old
The casing that pile body is separated from soil, the outer casing being placed in the old stake holes, is placed in outside described the crane for transferring steel reinforcement cage
The hydraulic vibration driver of interior casing and the decentralization outer casing and the interior casing in casing；The interior casing and the outer shield
There is gap, the steel reinforcement cage is placed in the interior casing, and the bottom of the interior casing is embedded in the old stake holes between cylinder
The lower section of bottom.
2. a kind of construction equipment for replacing bored concrete pile as described in claim 1, which is characterized in that the old pile body has pile crown
Reinforcing bar, the pile crown reinforcing bar are connected with connecting plate, and the connecting plate is by wirerope connection in the fixed link of lateral arrangement；It is described
Full-rotating drill drives the fixed link rotation, drives the old pile body to rotate in described sleeve pipe, makes the old pile body and soil
Body separation.
3. a kind of construction equipment for replacing bored concrete pile as claimed in claim 2, which is characterized in that the connecting plate is equipped with multiple
Buckle, the lifting lug of stress when the fixed link is equipped with multiple liftings for the crane；Described in the both ends of wirerope are fixed respectively
Buckle and the lifting lug.
4. a kind of construction equipment for replacing bored concrete pile as claimed in any one of claims 1-3, which is characterized in that described hydraulic
Vibration hammer is equipped with the hydraulically operated fixture for clamping the outer casing and the interior casing；The hydraulically operated fixture clamps the outer casing
Or when the interior casing, the outer casing and the interior casing are perpendicular in ground configuration respectively.
5. a kind of construction equipment for replacing bored concrete pile as claimed in claim 4, which is characterized in that the hydraulically operated fixture includes two
A opposite arrangement and it can move towards or be away from each other mobile grip block, the grip block has for clamping the interior casing
Clamping face, the clamping face is in vertical distribution.
6. a kind of construction equipment for replacing bored concrete pile as claimed in claim 5, which is characterized in that along direction from top to bottom, institute
The thickness for stating grip block gradually decreases.
7. a kind of construction equipment for replacing bored concrete pile as claimed in any one of claims 1-3, which is characterized in that the outer shield
Cylinder is equipped with multiple positioning bolts, and multiple positioning bolts are in positioned opposite two-by-two；The positioning bolt runs through the outer casing
Ecto-entad is disposed to extend；When the interior casing sinks to the inside of the outer casing, two positioning bolts contradict respectively
The side wall of the interior casing.
8. a kind of construction equipment for replacing bored concrete pile as claimed in any one of claims 1-3, which is characterized in that described one kind
The construction equipment for replacing bored concrete pile includes Spiral digging machine, and the inside of the interior casing forms new stake holes, and the steel reinforcement cage is placed in described
New stake holes.
9. a kind of construction equipment for replacing bored concrete pile as claimed in claim 8, which is characterized in that the new stake holes is embedded with filling
Conduit is infused, one end of the perfusion conduit is buried in the new stake holes, and the other end of the perfusion conduit extends the new pile
Outside hole, the other end of the perfusion conduit is installed on the first watering hopper construction of the groundwater increment for controlling concrete perfusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820911826.7U CN209538258U (en) | 2018-06-12 | 2018-06-12 | A kind of construction equipment for replacing bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820911826.7U CN209538258U (en) | 2018-06-12 | 2018-06-12 | A kind of construction equipment for replacing bored concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209538258U true CN209538258U (en) | 2019-10-25 |
Family
ID=68244098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820911826.7U Active CN209538258U (en) | 2018-06-12 | 2018-06-12 | A kind of construction equipment for replacing bored concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209538258U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216162A (en) * | 2021-04-12 | 2021-08-06 | 深圳市工勘岩土集团有限公司 | Full-rotation double-sleeve pile forming structure for cast-in-place pile |
| CN113338270A (en) * | 2021-04-12 | 2021-09-03 | 深圳市工勘岩土集团有限公司 | Full-rotation double-sleeve variable-section retaining wall pile forming method for cast-in-place pile |
| CN116571535A (en) * | 2023-04-20 | 2023-08-11 | 中铁建工集团有限公司 | Pulling-resistant pile steel pipe fitting recycling device and method |
-
2018
- 2018-06-12 CN CN201820911826.7U patent/CN209538258U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216162A (en) * | 2021-04-12 | 2021-08-06 | 深圳市工勘岩土集团有限公司 | Full-rotation double-sleeve pile forming structure for cast-in-place pile |
| CN113338270A (en) * | 2021-04-12 | 2021-09-03 | 深圳市工勘岩土集团有限公司 | Full-rotation double-sleeve variable-section retaining wall pile forming method for cast-in-place pile |
| CN116571535A (en) * | 2023-04-20 | 2023-08-11 | 中铁建工集团有限公司 | Pulling-resistant pile steel pipe fitting recycling device and method |
| CN116571535B (en) * | 2023-04-20 | 2023-10-27 | 中铁建工集团有限公司 | Pulling-resistant pile steel pipe fitting recycling device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106284314B (en) | Karst landform spiral-digging pore cast-in-place pile construction method | |
| CN110424381A (en) | A kind of process for rotary digging drilling hole stake | |
| CN106988302B (en) | A kind of high inclination-angle competent bed rotary digging pile driving construction engineering method | |
| CN103469817B (en) | Existing subway station main structure broadening construction method | |
| CN209538258U (en) | A kind of construction equipment for replacing bored concrete pile | |
| CN112554177A (en) | Construction method of ultra-long small-diameter cast-in-situ bored pile | |
| CN107724383B (en) | Rotary digging cast-in-place pile construction method | |
| CN104612179B (en) | Through the construction method of the diaphram wall of super thick silty sand ground | |
| CN108166483A (en) | Bored pile construction method | |
| CN110629747A (en) | Full-casing full-rotation construction process for pile foundation under complex geological conditions | |
| CN103195058A (en) | Multi-casing structure capable of facilitating bridge-pile construction in cavern development areas and construction method thereof | |
| CN112627172B (en) | Pile forming system and construction method for large-diameter cast-in-situ bored pile in karst area | |
| CN210086275U (en) | Double-wall hollow open caisson foundation | |
| CN106930276A (en) | The deep hole blasting of rotary digging bored concrete pile and the construction method of conduit rotary digging removing obstacles | |
| CN107905221A (en) | A kind of method for being accurately positioned percussive drilling bored concrete pile | |
| CN104564091A (en) | Method and device for removing anchor rods from shield crossing area | |
| CN107642041A (en) | The hollow clump of piles anchorage of super-large diameter | |
| CN111395330A (en) | Construction method for concrete cast-in-situ bored pile complete steel casing penetrating through underground gallery | |
| CN107653878A (en) | Cast-in-situ bored pile is reusable to be longitudinally separated formula steel pile casting construction | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN108442362A (en) | One kind passing through riprap layer drilled pile construction method for coastal | |
| CN107642040A (en) | The construction method heavy stone used as an anchor of the hollow clump of piles anchorage of super-large diameter | |
| CN106703034A (en) | Construction device and construction method for pulling out piles through cooperation of rotating drilling machine and sleeve drill bit | |
| CN106930274B (en) | A kind of a full set of cylinder rotatory boring castinplace pile construction method that reinforcing bar cage location is fixed | |
| CN214245694U (en) | Pile forming system for large-diameter cast-in-situ bored pile in karst area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |