CN110374109A - The application method in pipe gallery foundation pit is gone along with sb. to guard him in a kind of engineering method stake - Google Patents
The application method in pipe gallery foundation pit is gone along with sb. to guard him in a kind of engineering method stake Download PDFInfo
- Publication number
- CN110374109A CN110374109A CN201910470723.0A CN201910470723A CN110374109A CN 110374109 A CN110374109 A CN 110374109A CN 201910470723 A CN201910470723 A CN 201910470723A CN 110374109 A CN110374109 A CN 110374109A
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- China
- Prior art keywords
- profile steel
- groove
- fashioned iron
- stake
- construction
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- 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.)
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Classifications
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- 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
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
Abstract
The invention discloses a kind of engineering method stakes to go along with sb. to guard him the application method in pipe gallery foundation pit, mainly includes that construction lofting, guide groove excavate, positioning, drilling machine are in place, mud in slurries mixing and whitewashing stirring, H profile steel processing and insertion H profile steel, cleaning groove, arranges these steps of construction note.The present invention solves the problems, such as that impervious poor, duration anxiety, surrounding enviroment are affected and waste the underground space, by the way that H profile steel is recycled, improves resource utilization and solves the problem of cost is high, and permanent building enclosure causes Underground Space Resource to pollute.
Description
Technical field
The present invention relates to construction techniques fields, it particularly relates to which a kind of engineering method stake is gone along with sb. to guard him in pipe gallery foundation pit
Application method.
Background technique
Base pit engineering is first link of pipe gallery engineering construction, and foundation pit enclosure design relation to Pipe rack is constructed
Safety, the progress of period, while also having larger impact to engineering overall cost.Excavation of foundation pit depth is to influence pipe gallery to go along with sb. to guard him
One key factor of structure design, when pipe gallery vertical alignment design, structure roof earthing needs to consider road pavement, greening
The requirements such as plantation, road athwartship leg are passed through, node interlayer is arranged, usual earthing add comprehensive pipe gallery structure in 1.5 ~ 3m
Highly, cushion thickness etc., piping lane excavation of foundation pit depth about 5 ~ 8m of standard paragraphs.Part need to descend river crossing, avoid underground obstacle
Object, or when being changed by hypsography, cutting depth can be more than 10m.Furthermore soil response mechanical property, groundwater state, week
Surrounding environment etc. also determines the type selecting of foundation pit enclosure structure design.
The construction method of existing pipe gallery foundation pit, exists impervious poor, and cost is high, is affected to periphery bad border
The problems such as.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes that a kind of engineering method stake is gone along with sb. to guard him in pipe gallery foundation pit
Application method carries out drilling to depth with fountain type drilling blender, forms the soil cement solidification rigid shape of H-type by drill bit jet cement
At stiffness Composite Enclosure Structure.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
The application method in pipe gallery foundation pit is gone along with sb. to guard him in a kind of engineering method stake, comprising steps of
1) construction lofting；Carry out construction lofting work according to coordinate basis point and design drawing, after repetition measurement is errorless, carries out corresponding mark
Will facilitates subsequent use, and supervision surveying technique check list is submitted to carry out review examination；
2) guide groove excavates；In order to determine initial guiding position and storage arch slurry, need to carry out pipe canal digging, channel excavation Ying Yifang
Subject to the enclosure wall center line of sample positioning, groove width should determine that the depth of groove should be 1 meter, pass through according to fence structure thickness
Air compressor removes underground obstacle；If gap is excessive, is backfilled and be compacted, and excavate guide groove again, with
Ensure the smooth construction of SMW method stake；
3) it positions；Guide-localization fashioned iron need to be laid on the working channel two sides of excavation, according to drawing in guide-localization fashioned iron subscript
The insertion position of bore position and H profile steel is outpoured, positioning fashioned iron need to be fixed, such as finds unstable, is mutually connected with spot welding
Connect fixation；
4) drilling machine is in place；In place to the position determined, error ≯ 3cm in place levels platform with horizontal ruler, and carries out mobile stake machine
Rack straightening guarantees rack perpendicularity deviation ≯ 1%, and the principle of drilling pipe and pile frame relative dislocation is utilized on drilling pipe, marks drilling
The scale line of depth, it is ensured that drilling depth is up to standard under drilling pipe；
5) slurries mixing and whitewashing stirring；Slurries are prepared in strict accordance with proportion, need to be stirred, after the completion of slurries, are started
Whitewashing is bored under jet, strict control running speed, and running speed is general ≯ 1m/min, and going down process grouting pressure generally exists
Between 1.5MPa~2.5Mpa, to design stake bottom absolute altitude after need to be promoted and stir again, promoted speed it is general ≯ 2m/min；
6) H profile steel processing and insertion H profile steel；
1. the circular hole of an aperture about 8cm is being opened in fashioned iron top center using preceding, in fashioned iron for the ease of the lifting of H profile steel
The stiffening plate that thickness is greater than 12mm is welded in two sides, and when fashioned iron curtailment, weld seam should be fully welded groove, and (groove degree is less than 45
Degree), postwelding should check whether weld seam has bubble, slag inclusion, flatness, and whether weld seam is qualified, unqualified to answer repair welding；Finally, using sand
It takes turns weld grinding to level identical with type face；Meanwhile the dirt and iron rust on H profile steel surface are first removed, use preceding brush 1-3mm
Anti-friction agent, heating electrically heated rod be completely melt it, and with stirring rod stirring keep the thickness of anti-friction agent uniform, be coated in H profile steel
On, coating is uneven, is easy to peel off, is unfavorable for fashioned iron and pulls out；
2. cement mixing pile driving construction is close to tail end, crane is in place, the preparation of H profile steel lifting is carried out, with 50t crane lifting H-type
Steel；Fashioned iron is horizontal in H profile steel positioning card to be accurately positioned and fixes；When pouring, H profile steel is leaned on along positioning card by H profile steel bottom centre
Self weight insertion positive stake position center, H profile steel are slowly inserted into soil cement pile body；If being unsatisfactory for design requirement, H profile steel is slowly promoted
It is inserted into, is inserted into designed elevation；During insertion, the verticality of monitored over time H profile steel is answered, it is ensured that its deviation is less than
0.5%；After the completion of fashioned iron insertion, it is fixed to solidification；
7) mud in groove is cleared up；Part of cement soil can be displaced in groove by cement grout and H profile steel, by the water in groove
Soil cleans out groove using excavator, it is ensured that next process is gone on smoothly；To avoid generating mud contamination, outer abandon firmly is needed
Soil cement is cleaned after change；
8) construction note is arranged；It records the sinking time of every pile, promote the underthrust situation of time, the situation and H profile steel of whitewashing.
Beneficial effects of the present invention: the present invention solves impervious poor, duration anxiety, surrounding enviroment are affected and waste
The problem of the underground space improves resource utilization and solves cost height, permanent building enclosure by the way that H profile steel is recycled
The problem of causing Underground Space Resource to pollute.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that process flow chart in the application method of pipe gallery foundation pit is gone along with sb. to guard him in engineering method stake；
Fig. 2 is that pipe well structural map in the application of pipe gallery foundation pit is gone along with sb. to guard him in engineering method stake；
Fig. 3 is that groove locating slot steel figure in the application of pipe gallery foundation pit is gone along with sb. to guard him in engineering method stake；
Fig. 4 is that structural schematic diagram in the application of pipe gallery foundation pit is gone along with sb. to guard him in engineering method stake.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figs 1-4, the application in pipe gallery foundation pit is gone along with sb. to guard him in a kind of engineering method stake according to embodiments of the present invention
Method, which is characterized in that comprising steps of
1) construction lofting；Carry out construction lofting work according to coordinate basis point and design drawing, after repetition measurement is errorless, carries out corresponding mark
Will facilitates subsequent use, and supervision surveying technique check list is submitted to carry out review examination；
2) guide groove excavates；In order to determine initial guiding position and storage arch slurry, need to carry out pipe canal digging, channel excavation Ying Yifang
Subject to the enclosure wall center line of sample positioning, groove width should determine that the depth of groove should be 1 meter, pass through according to fence structure thickness
Air compressor removes underground obstacle；If gap is excessive, is backfilled and be compacted, and excavate guide groove again, with
Ensure the smooth construction of SMW method stake；
3) it positions；Guide-localization fashioned iron need to be laid on the working channel two sides of excavation, according to drawing in guide-localization fashioned iron subscript
The insertion position of bore position and H profile steel is outpoured, positioning fashioned iron need to be fixed, such as finds unstable, is mutually connected with spot welding
Connect fixation；
4) drilling machine is in place；In place to the position determined, error ≯ 3cm in place levels platform with horizontal ruler, and carries out mobile stake machine
Rack straightening guarantees rack perpendicularity deviation ≯ 1%, and the principle of drilling pipe and pile frame relative dislocation is utilized on drilling pipe, marks drilling
The scale line of depth, it is ensured that drilling depth is up to standard under drilling pipe；
5) slurries mixing and whitewashing stirring；Slurries are prepared in strict accordance with proportion, need to be stirred, after the completion of slurries, are started
Whitewashing is bored under jet, strict control running speed, and running speed is general ≯ 1m/min, and going down process grouting pressure generally exists
Between 1.5MPa~2.5Mpa, to design stake bottom absolute altitude after need to be promoted and stir again, promoted speed it is general ≯ 2m/min；
6) H profile steel processing and insertion H profile steel；
1. the circular hole of an aperture about 8cm is being opened in fashioned iron top center using preceding, in fashioned iron for the ease of the lifting of H profile steel
The stiffening plate that thickness is greater than 12mm is welded in two sides, and when fashioned iron curtailment, weld seam should be fully welded groove, and (groove degree is less than 45
Degree), postwelding should check whether weld seam has bubble, slag inclusion, flatness, and whether weld seam is qualified, unqualified to answer repair welding；Finally, using sand
It takes turns weld grinding to level identical with type face；Meanwhile the dirt and iron rust on H profile steel surface are first removed, use preceding brush 1-3mm
Anti-friction agent, heating electrically heated rod be completely melt it, and with stirring rod stirring keep the thickness of anti-friction agent uniform, be coated in H profile steel
On, coating is uneven, is easy to peel off, is unfavorable for fashioned iron and pulls out；
2. cement mixing pile driving construction is close to tail end, crane is in place, the preparation of H profile steel lifting is carried out, with 50t crane lifting H-type
Steel；Fashioned iron is horizontal in H profile steel positioning card to be accurately positioned and fixes；When pouring, H profile steel is leaned on along positioning card by H profile steel bottom centre
Self weight insertion positive stake position center, H profile steel are slowly inserted into soil cement pile body；If being unsatisfactory for design requirement, H profile steel is slowly promoted
It is inserted into, is inserted into designed elevation；During insertion, the verticality of monitored over time H profile steel is answered, it is ensured that its deviation is less than
0.5%；After the completion of fashioned iron insertion, it is fixed to solidification；
7) mud in groove is cleared up；Part of cement soil can be displaced in groove by cement grout and H profile steel, by the water in groove
Soil cleans out groove using excavator, it is ensured that next process is gone on smoothly；To avoid generating mud contamination, outer abandon firmly is needed
Soil cement is cleaned after change；
8) construction note is arranged；It records the sinking time of every pile, promote the underthrust situation of time, the situation and H profile steel of whitewashing.
The application method in pipe gallery foundation pit is gone along with sb. to guard him in a kind of engineering method stake of invention, is applied using three axis cement mixing pile machines
Work, pile is using stirring the second gunite technique twice.The present invention solve it is impervious it is poor, the duration is nervous, surrounding enviroment influence compared with
Big and the waste underground space the problem improves resource utilization and solves cost height, permanently by the way that H profile steel is recycled
The problem of building enclosure causes Underground Space Resource to pollute.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (1)
1. the application method in pipe gallery foundation pit is gone along with sb. to guard him in a kind of engineering method stake, which is characterized in that comprising steps of
1) construction lofting；Carry out construction lofting work according to coordinate basis point and design drawing, after repetition measurement is errorless, carries out corresponding mark
Will facilitates subsequent use；
2) guide groove excavates；In order to determine initial guiding position and storage arch slurry, need to carry out pipe canal digging, channel excavation Ying Yifang
Subject to the enclosure wall center line of sample positioning, groove width should determine that the depth of groove should be 1 meter, pass through according to fence structure thickness
Air compressor removes underground obstacle；If gap is excessive, is backfilled and be compacted, and excavate guide groove again, with
Ensure the smooth construction of SMW method stake；
3) it positions；Guide-localization fashioned iron need to be laid on the working channel two sides of excavation, according to drawing in guide-localization fashioned iron subscript
The insertion position of bore position and H profile steel is outpoured, positioning fashioned iron need to be fixed, such as finds unstable, is mutually connected with spot welding
Connect fixation；
4) drilling machine is in place；In place to the position determined, error ≯ 3cm in place levels platform with horizontal ruler, and carries out mobile stake machine
Rack straightening guarantees rack perpendicularity deviation ≯ 1%, and the principle of drilling pipe and pile frame relative dislocation is utilized on drilling pipe, marks drilling
The scale line of depth, it is ensured that drilling depth is up to standard under drilling pipe；
5) slurries mixing and whitewashing stirring；Slurries are prepared in strict accordance with proportion, need to be stirred, after the completion of slurries, are started
Whitewashing is bored under jet, strict control running speed, and running speed is general ≯ 1m/min, and going down process grouting pressure generally exists
Between 1.5MPa~2.5Mpa, to design stake bottom absolute altitude after need to be promoted and stir again, promoted speed it is general ≯ 2m/min；
6) H profile steel processing and insertion H profile steel；
1. the circular hole of an aperture about 8cm is being opened in fashioned iron top center using preceding, in fashioned iron for the ease of the lifting of H profile steel
The stiffening plate that thickness is greater than 12mm is welded in two sides, and when fashioned iron curtailment, weld seam should be fully welded groove, and (groove degree is less than 45
Degree), postwelding should check whether weld seam has bubble, slag inclusion, flatness, and whether weld seam is qualified, unqualified to answer repair welding；Finally, using sand
It takes turns weld grinding to level identical with type face；Meanwhile the dirt and iron rust on H profile steel surface are first removed, use preceding brush 1-3mm
Anti-friction agent, heating electrically heated rod be completely melt it, and with stirring rod stirring keep the thickness of anti-friction agent uniform, be coated in H profile steel
On, if coating is uneven, it is easy to peel off, is unfavorable for fashioned iron and pulls out；
2. cement mixing pile driving construction is close to tail end, crane is in place, the preparation of H profile steel lifting is carried out, with 50t crane lifting H-type
Steel；Fashioned iron is horizontal in H profile steel positioning card to be accurately positioned and fixes；When pouring, H profile steel is leaned on along positioning card by H profile steel bottom centre
Self weight insertion positive stake position center, H profile steel are slowly inserted into soil cement pile body；If being unsatisfactory for design requirement, H profile steel is slowly promoted
It is inserted into, is inserted into designed elevation；During insertion, the verticality of monitored over time H profile steel is answered, it is ensured that its deviation is less than
0.5%；After the completion of fashioned iron insertion, it is fixed to solidification；
7) mud in groove is cleared up；Part of cement soil can be displaced in groove by cement grout and H profile steel, by the water in groove
Soil cleans out groove using excavator, it is ensured that next process is gone on smoothly；To avoid generating mud contamination, outer abandon firmly is needed
Soil cement is cleaned after change；
8) construction note is arranged；It records the sinking time of every pile, promote the underthrust situation of time, the situation and H profile steel of whitewashing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470723.0A CN110374109B (en) | 2019-05-31 | 2019-05-31 | Application method of construction method pile enclosure in comprehensive pipe gallery foundation pit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910470723.0A CN110374109B (en) | 2019-05-31 | 2019-05-31 | Application method of construction method pile enclosure in comprehensive pipe gallery foundation pit |
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| CN110374109A true CN110374109A (en) | 2019-10-25 |
| CN110374109B CN110374109B (en) | 2021-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112575768A (en) * | 2020-12-17 | 2021-03-30 | 中铁二十二局集团轨道工程有限公司 | SMW construction method pile applied to subway deep foundation pit engineering |
| CN115045299A (en) * | 2022-07-26 | 2022-09-13 | 杭州市西站枢纽开发有限公司 | Deep and large foundation pit side wall reinforcing structure with electroosmosis drainage function and construction method |
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| CN101768961A (en) * | 2010-01-22 | 2010-07-07 | 中铁二十二局集团第六工程有限公司 | Construction method of section-steel triaxial soil-cement mixing pile |
| CN101886393A (en) * | 2010-07-03 | 2010-11-17 | 朱奎 | Construction method of combined foundation ditch support |
| CN106894422A (en) * | 2017-02-28 | 2017-06-27 | 南通华荣建设集团有限公司 | Complex environment deep foundation pit supporting construction method |
| KR20180072305A (en) * | 2016-12-21 | 2018-06-29 | 원병천 | shaped steel beam and the structure using it |
| CN108560536A (en) * | 2018-04-19 | 2018-09-21 | 江苏建宇建设集团有限公司 | The continuous piling wall construction method of Soil-cement |
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2019
- 2019-05-31 CN CN201910470723.0A patent/CN110374109B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768961A (en) * | 2010-01-22 | 2010-07-07 | 中铁二十二局集团第六工程有限公司 | Construction method of section-steel triaxial soil-cement mixing pile |
| CN101886393A (en) * | 2010-07-03 | 2010-11-17 | 朱奎 | Construction method of combined foundation ditch support |
| KR20180072305A (en) * | 2016-12-21 | 2018-06-29 | 원병천 | shaped steel beam and the structure using it |
| CN106894422A (en) * | 2017-02-28 | 2017-06-27 | 南通华荣建设集团有限公司 | Complex environment deep foundation pit supporting construction method |
| CN108560536A (en) * | 2018-04-19 | 2018-09-21 | 江苏建宇建设集团有限公司 | The continuous piling wall construction method of Soil-cement |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112575768A (en) * | 2020-12-17 | 2021-03-30 | 中铁二十二局集团轨道工程有限公司 | SMW construction method pile applied to subway deep foundation pit engineering |
| CN115045299A (en) * | 2022-07-26 | 2022-09-13 | 杭州市西站枢纽开发有限公司 | Deep and large foundation pit side wall reinforcing structure with electroosmosis drainage function and construction method |
| CN115045299B (en) * | 2022-07-26 | 2024-02-02 | 杭州市西站枢纽开发有限公司 | Deep foundation pit side wall reinforcing structure with electroosmosis drainage function and construction method |
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| CN110374109B (en) | 2021-08-24 |
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Inventor after: Ma Dong Inventor after: Gao Zhi Inventor after: Li Ming Inventor after: Zhang Zhiyong Inventor after: Liu Xiangnan Inventor after: Chen Yaqiang Inventor after: Yang Jinwen Inventor after: Sun Chenglong Inventor after: Ding Chuanfeng Inventor after: Li Hui Inventor after: Liu Bin Inventor after: Zhao Yongliang Inventor after: Zhu Kairong Inventor after: Xiao Chunlei Inventor before: Ma Dong Inventor before: Gao Zhi Inventor before: Li Ming Inventor before: Zhang Zhiyong Inventor before: Liu Xiangnan Inventor before: Chen Yaqiang Inventor before: Yang Jinwen Inventor before: Sun Chenglong Inventor before: Ding Chuanfeng Inventor before: Li Hui Inventor before: Liu Bin Inventor before: Zhao Yongliang Inventor before: Zhu Kairong Inventor before: Xiao Chunlei |
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