CN110106867A - Manual digging pile construction method between railcar station track - Google Patents
Manual digging pile construction method between railcar station track Download PDFInfo
- Publication number
- CN110106867A CN110106867A CN201910387164.7A CN201910387164A CN110106867A CN 110106867 A CN110106867 A CN 110106867A CN 201910387164 A CN201910387164 A CN 201910387164A CN 110106867 A CN110106867 A CN 110106867A
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- Prior art keywords
- concrete
- pile
- construction
- stake
- railway ballast
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- 238000010276 construction Methods 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000009412 basement excavation Methods 0.000 claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract 2
- 239000002689 soil Substances 0.000 claims description 14
- 210000000481 breast Anatomy 0.000 claims description 9
- 241001669679 Eleotris Species 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000010410 reperfusion Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to station transition project fields, specially manual digging pile construction method between railcar station track.This method sequence of construction are as follows: unwrapping wire fixed pile and elevation, railway ballast supporting and retaining system, job platform excavate, existing equipment move change, aperture excavations, the installation of elevator erection of frames, ventilation equipment, pile body excavate, concrete guard wall construction, reinforcing bar hang (banding steel cage in hole), dismounting elevator frame body, pile concrete pour, cushion cap earth excavation and top concrete guard wall are abolished, cushion cap cheek board and reinforcement construction, pour cushion cap concrete.The present invention fully considers that this method is formulated in requirement of the railway operation to construction, and through organizing and implementing, work efficiency is improved, and reliable in quality, safety assurance brings notable results.
Description
Technical field
The present invention relates to station transition project fields, specially manual digging pile construction method between railcar station track.
Background technique
Station transition project is that channel exterior wall sets up Steel corridor channel in overhead waiting hall on existing platform, is led to
Newly-built platform, enters the station for passenger and waits.The vestibule channel is divided into overhead vestibule and outdoor scaoffold two parts form, in construction
Appearance is included in artificial digging pile between newly-built vestibule existing railway line, and station is normally open to traffic in construction, belongs to neighbouring railway and seeks
The construction of industry line can only utilize the inside the plan construction of night skylight point, and construction interference is big, and security risk is big.
Summary of the invention
In view of the above-mentioned problems, the present invention provides manual digging pile construction methods between railcar station track.It mainly solves following
Problem: (1) manual excavation pile operation position needs in night block point and adjacent to operation, effective operation time between existing diatom
Short, generally only 2-5 hours, difficulty of construction and security risk were larger, needed the well-organized, duration of keeping under strict control, reinforced construction safety protection.
It (2) is existing contact net lines above rail top, various overlength objects are forbidden close to contact net.Pile foundation steel bar cage needs to bind in hole,
Strict control Length of Reinforcement Before Being Incised, reinforcing bar guarantee and contact net safe distance when entering hole.(3) concrete pumping is not across contact
Net and route need to be worn under railway, by pipeline to stake holes.(4) during engineering construction, all material tools in scene, machinery
Railway clearance must not be invaded, Chinese Railway parent company " regulations of railway technical operation " prescribed requirement is met, guarantees railway operation
Safety.
The present invention adopts the following technical scheme that realization: manual digging pile construction method between railcar station track, according to
Following steps are implemented:
(1) surveying setting-out；
(2) railway ballast supporting and retaining system between line: railway ballast supporting and retaining system is carried out by railway ballast cleaning in job area and in line side, it is ensured that construction and route
Operational safety；
(3) job platform excavates: carrying out job platform excavation in stake position position；
(4) aperture is excavated: carrying out aperture excavation using artificial in job platform, the soil of elder generation's borehole mouth middle section when excavation
Side, then extends to periphery, efficiently controls the sectional dimension for excavating stake holes, excavates stake holes and carries out section by section from top to bottom, Mei Yijie
After pore-forming, hole wall surrounding assembling reinforcement installs dado template, pours breast wall concrete, 100~175mm of breast wall concrete thickness；
(5) elevator erection of frames and pile body excavate: when pore digging to 1.5m depth, elevator hoisting frame being placed on operation horizontal
On platform, elevator muck haulage is utilized；The deep section of the every digging of pile body, does a section breast wall concrete, breast wall concrete 100~175mm of thickness,
With this cycle operation until arriving stake bottom designed elevation；
(6) steel reinforcement cage is constructed: main reinforcement being segmented, to guarantee every reinforcing bar length in transport and the decentralization in hole away from contact
Net is safe distance, carries out steel reinforcement cage molding connection after reinforcing bar decentralization in hole；
(7) pile concrete pours: pile concrete reperfusion mode is pumped using ground pump, will with PVC casing undercrossing tunnel roadbed
Pump line passes through and pre-buried good PVC casing and is connected to aperture, and after the completion of pile concrete pouring construction, empty stake part is packed in bag soil
With plain earthen backfill to road foundation height mark, removes supporting and retaining system and restore railway ballast；
(8) cushion cap earth excavation: after concrete strength of pile reaches design requirement, starting cushion cap pit earthwork and excavate, foundation pit
After the completion of earthwork construction, superfilled part pile crown is abolished；
(9) bearing platform construction.
Manual digging pile construction method between above-mentioned railcar station track, wellhole is interior to install ventilation equipment, guarantees that hole bottom is made
The normal Oxygen Condition of industry personnel.
Manual digging pile construction method between above-mentioned railcar station track is poured with chute and string bucket into stake holes when pile body pours
Concrete is built, guarantees that concrete windrow is not concentrated, does not isolate.
Manual digging pile construction method between above-mentioned railcar station track, railway ballast supporting and retaining system use following methods: two at stake position
Steel pipe is squeezed into along line direction existed concrete bridge sleeper end in side, and squeezing into plank between steel pipe and concrete pillow is used to support railway ballast, wood
Plate top edge is concordant with sleeper, is determined zipper route two sides steel pipe, plank using Screw arbor with nut at both-ends, Screw arbor with nut at both-ends set when locking
Pvc pipe passes through rail bottom, it is ensured that railway roadbed is stable and track circuit does not connect electricity.
The present invention fully considers that this method is formulated in requirement of the railway operation to construction, and through organizing and implementing, work efficiency is improved, quality
Reliably, safety assurance brings notable results.
Detailed description of the invention
Fig. 1 is the schematic diagram of job platform.
Fig. 2 is that borehole stake body steel reinforcement cage binds schematic diagram.
Fig. 3 is borehole stake body sectional view.
In figure: 1- job platform, the existing diatom of 2-, 3- packeted soil, 4- element soil, 5- pile concrete.
Specific embodiment
Concrete construction method of the present invention is as follows:
(1) surveying setting-out
According to design drawing, the position of artificial digging pile and absolute altitude between line are determined.
(2) railway ballast supporting and retaining system between line
Railway ballast supporting and retaining system is carried out by railway ballast cleaning in job area and in line side, it is ensured that construction and route operational safety.To guarantee
Caisson safe construction and Business Line traffic safety between line, take lower block tiny fragments of stone, coal, etc. measure such as to ensure that railway roadbed is steady before excavation pile construction
It is fixed.Supporting and retaining system range is respectively to extend 2-3 m along line direction both ends.
Ф 48mm steel pipe, long 1.7m, buried depth are squeezed into away from existed concrete bridge sleeper end along line direction in two sides at stake position
1.0m, spacing 1m.4cm solid wood is squeezed between steel pipe and concrete pillow and is used to support railway ballast, and plank top edge is concordant with sleeper.Using
Screw arbor with nut at both-ends determines zipper route two sides steel pipe, plank, and Screw arbor with nut at both-ends set pvc pipe passes through rail bottom when locking, and PVC casing cannot
Against rail bottom, it is ensured that railway roadbed is stable and track circuit does not connect electricity, the pre-buried PVC casing under route near stake position, mixed for pile body
Solidifying soil wears pump line when pouring.
(3) job platform excavates
Job platform excavation is carried out in stake position position, the job platform of the present embodiment is along the long 11.24m of line direction, horizontal path
The wide 2.4m in direction, platform depth are 500mm under roadbed, and manually digging hole hoisting frame is placed in job platform, and equipment height is 1.2m,
Guarantee that equipment does not invade limit.The existing line equipment that must influence construction to underground before carrying out formal borehole move changing.
(4) aperture is excavated
Manual digging pile construction should be spaced construction, prevent adjacent pile foundation construction from interfering.Aperture excavation is carried out in job platform, is adopted
It is manually excavated with pick, spade, excavates stake holes and successively carry out from top to bottom, first dig the earthwork of middle section, then extend to week
Side efficiently controls the sectional dimension for excavating stake holes.It is dug according to every section 1m is successively lower, after each section pore-forming, the binding of hole wall surrounding
Reinforcing bar installs dado template, casting concrete.Dado thickness 100~175mm of requirement, hand-placed concrete, intensity C20,
The slump is controlled in 100mm.
(5) elevator erection of frames and pile body excavate
When pore digging to 1.5m depth, elevator hoisting frame is placed on job platform, equipment height is 1.2m, guarantees equipment
Limit is not invaded.
The principle constructed section by section is had to comply with, i.e., must accomplish to dig section soil, do a section concrete guard wall.It excavates and makees in hole
Industry must dig down again a section after retaining wall intensity reaches requirement.
Personnel answer hard hat required at all times in stake holes, and ground staff should fasten safety belt.When well-bucket leaves 1.5m above aperture, push away
Dynamic activity safety cover board shelters aperture, prevents the sundries such as the soil block, the stone that unload soil from falling in hole and hurts sb.'s feelings.Well-bucket is in small handcart
After unloading soil, then removable cover is opened, decentralization well-bucket dress soil, every digging depth 1m does a section retaining wall, with this cycle operation until arriving stake bottom
Designed elevation.
The upper lower opening well of operating personnel, answers the reliable ladder of usage safety performance, manually must not transport operating personnel by drawstring
Retaining wall flange or more stake holes is stepped on foot.Nylon safety rope should be arranged in stake holes inner wall, and puts with borehole depth increase to work surface, make
Spare for emergency installs ventilation equipment in wellhole, guarantees the normal Oxygen Condition of hole bottom operating personnel.
Manual digging pile construction requires cannot have water in wellhole.Artificial ground water position is higher, should take measures, before excavation
First precipitation is to stake bottom absolute altitude hereinafter, simultaneously guaranteeing manually digging hole normal construction with pump extraction discharge in time in the construction process.
(6) steel reinforcement cage is constructed
Because railway station wiring circuit contact net cannot have a power failure, is transported between online and lifting steel reinforcement cage does not satisfy the requirements, so needing people
Work banding steel cage in hole.Main reinforcement is segmented, to guarantee every reinforcing bar length in transport and the decentralization toward hole in away from connecing
Touching net is safe distance.The truncation of the present embodiment main reinforcement is mono- section of 4m ± 0.5m, mechanical sleeves connection is carried out in hole, and require
50% is staggered in the same sectional position of splice.
(7) pile concrete pours
Artificial digging pile pile concrete is perfused using commerical ready-mixed concrete, and due to being restricted by field condition, reperfusion mode is using ground
Pump pumping.Pump line is passed through into pre-buried good PVC casing, is connected to aperture, guarantees that track circuit does not connect electricity.It pours and adds string with chute
Bucket casting concrete into stake holes.Guarantee that concrete windrow is not concentrated, do not isolate, continuous primary perfusion finishes.Such as encounter plugging
When, it need to stop pouring immediately, pump line is dismantled, is poured again after dredging.
It should be carried out continuously when casting concrete, be layered vibration compacting.When concreting to stake top absolute altitude, concrete is surpassed
It fills to design of pile top absolute altitude 300mm~500mm, to guarantee after rejecting laitance, stake top absolute altitude meets design requirement.Construction is completed
Afterwards, empty stake part is packed in bag soil and plain earthen backfill is backfilled to road foundation height mark, removes supporting and retaining system and restores railway ballast.
(8) cushion cap earth excavation
After concrete strength of pile reaches design requirement, start foundation platform earthwork construction, cushion cap pit earthwork is excavated and mixed
Solidifying soil retaining wall is abolished while being carried out, and after the completion of pit earthwork construction, abolishes superfilled part pile crown.
(9) bearing platform construction
Cushion cap is poured using ground pump, and pump line is connected at cushion cap, first pours 100mm thickness concrete cushion, then bind cushion cap reinforcing bar,
Cushion cap reinforcing bar is bound in two times, when binding spacer screen piece, welding support and positioning plate at the absolute altitude of steel column bottom, and pre-buried steel column bolt,
The position 800mm in concreting to cushion cap bottom absolute altitude when one-time-concreting starts after concrete strength rises to design strength
Top lifts steel column operation.It is secondary again after the completion of lifting to pour to cushion cap top mark height.
(10) construction safety protection
Construction period is equipped with member in station, protection personnel, each coordinative construction of security official daily, and each block point finishes preceding half an hour,
Construction site material need to be cleaned out to construction site, unfinished work surface need to use 5mm thick steel plate to carry out covered protection, and in steel
Clump weight is placed on plate, continues to construct to next block point.
Claims (4)
1. manual digging pile construction method between railcar station track, it is characterised in that follow the steps below to implement:
(1) surveying setting-out；
(2) railway ballast supporting and retaining system between line: railway ballast supporting and retaining system is carried out by railway ballast cleaning in job area and in line side, it is ensured that construction and route
Operational safety；
(3) job platform excavates: carrying out job platform excavation in stake position position；
(4) aperture is excavated: carrying out aperture excavation using artificial in job platform, the soil of elder generation's borehole mouth middle section when excavation
Side, then extends to periphery, efficiently controls the sectional dimension for excavating stake holes, excavates stake holes and carries out section by section from top to bottom, Mei Yijie
After pore-forming, hole wall surrounding assembling reinforcement installs dado template, pours breast wall concrete, 100~175mm of breast wall concrete thickness；
(5) elevator erection of frames and pile body excavate: when pore digging to 1.5m depth, elevator hoisting frame being placed on operation horizontal
On platform, elevator muck haulage is utilized；The deep section of the every digging of pile body, does a section breast wall concrete, breast wall concrete 100~175mm of thickness,
With this cycle operation until arriving stake bottom designed elevation；
(6) steel reinforcement cage is constructed: main reinforcement being segmented, to guarantee every reinforcing bar length in transport and the decentralization in hole away from contact
Net is safe distance, carries out steel reinforcement cage molding connection after reinforcing bar decentralization in hole；
(7) pile concrete pours: pile concrete reperfusion mode is pumped using ground pump, will with PVC casing undercrossing tunnel roadbed
Pump line passes through and pre-buried good PVC casing and is connected to aperture, and after the completion of pile concrete pouring construction, empty stake part is packed in bag soil
With plain earthen backfill to road foundation height mark, removes supporting and retaining system and restore railway ballast；
(8) cushion cap earth excavation: after concrete strength of pile reaches design requirement, starting cushion cap pit earthwork and excavate, foundation pit
After the completion of earthwork construction, superfilled part pile crown is abolished；
(9) bearing platform construction.
2. manual digging pile construction method between railcar station track according to claim 1, it is characterised in that installation in wellhole
Ventilation equipment guarantee the normal Oxygen Condition of hole bottom operating personnel.
3. manual digging pile construction method between railcar station track according to claim 1 or 2, it is characterised in that pile body pours
When chute and string bucket casting concrete into stake holes, guarantee concrete windrow do not concentrate, do not isolate.
4. manual digging pile construction method between railcar station track according to claim 1 or 2, it is characterised in that railway ballast supporting and retaining system
Using following methods: steel pipe is squeezed into along line direction existed concrete bridge sleeper end in two sides at stake position, between steel pipe and concrete pillow
It squeezes into plank and is used to support railway ballast, plank top edge is concordant with sleeper, using Screw arbor with nut at both-ends by route two sides steel pipe, plank to drawing
Locking, Screw arbor with nut at both-ends set pvc pipe passes through rail bottom when locking, it is ensured that railway roadbed is stable and track circuit does not connect electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387164.7A CN110106867A (en) | 2019-05-10 | 2019-05-10 | Manual digging pile construction method between railcar station track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387164.7A CN110106867A (en) | 2019-05-10 | 2019-05-10 | Manual digging pile construction method between railcar station track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110106867A true CN110106867A (en) | 2019-08-09 |
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ID=67489227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910387164.7A Pending CN110106867A (en) | 2019-05-10 | 2019-05-10 | Manual digging pile construction method between railcar station track |
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| Country | Link |
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| CN (1) | CN110106867A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541416A (en) * | 2019-08-18 | 2019-12-06 | 中铁六局集团有限公司 | Construction method for digging pile between high-speed railway lines |
| CN111851473A (en) * | 2020-04-17 | 2020-10-30 | 贵州建工集团第四建筑工程有限责任公司 | A kind of construction method of super large section non-circular artificial digging pile |
| CN112681300A (en) * | 2020-12-24 | 2021-04-20 | 中国十九冶集团有限公司 | Construction method of manual hole digging pile |
| CN113982017A (en) * | 2021-10-20 | 2022-01-28 | 中交路桥华南工程有限公司 | Method for installing reinforcement cage in pile hole |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110101299A (en) * | 2010-03-08 | 2011-09-16 | 주식회사 리엔 | Construction method of eco-friendly embedded cast-in-place pile to reinforce seismic and horizontal resistance performance |
| CN109183787A (en) * | 2018-09-06 | 2019-01-11 | 上海宝冶集团有限公司 | A kind of forming method of man-made digging pile mould-pipe |
-
2019
- 2019-05-10 CN CN201910387164.7A patent/CN110106867A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110101299A (en) * | 2010-03-08 | 2011-09-16 | 주식회사 리엔 | Construction method of eco-friendly embedded cast-in-place pile to reinforce seismic and horizontal resistance performance |
| CN109183787A (en) * | 2018-09-06 | 2019-01-11 | 上海宝冶集团有限公司 | A kind of forming method of man-made digging pile mould-pipe |
Non-Patent Citations (2)
| Title |
|---|
| 李艳星: "浅谈高水位和地质复杂条件下人工挖孔桩施工技术应用", 《科技与创新》 * |
| 王文海: "浅谈既有线站内地道接长施工过程方案优化和质量控制", 《中小企业管理与科技(上旬刊)》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541416A (en) * | 2019-08-18 | 2019-12-06 | 中铁六局集团有限公司 | Construction method for digging pile between high-speed railway lines |
| CN111851473A (en) * | 2020-04-17 | 2020-10-30 | 贵州建工集团第四建筑工程有限责任公司 | A kind of construction method of super large section non-circular artificial digging pile |
| CN112681300A (en) * | 2020-12-24 | 2021-04-20 | 中国十九冶集团有限公司 | Construction method of manual hole digging pile |
| CN113982017A (en) * | 2021-10-20 | 2022-01-28 | 中交路桥华南工程有限公司 | Method for installing reinforcement cage in pile hole |
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Application publication date: 20190809 |