CN102444117A - Construction method of reinforced concrete protection pile in loess areas - Google Patents
Construction method of reinforced concrete protection pile in loess areas Download PDFInfo
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- CN102444117A CN102444117A CN201110274975XA CN201110274975A CN102444117A CN 102444117 A CN102444117 A CN 102444117A CN 201110274975X A CN201110274975X A CN 201110274975XA CN 201110274975 A CN201110274975 A CN 201110274975A CN 102444117 A CN102444117 A CN 102444117A
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- fender pile
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- job practices
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Abstract
The invention discloses a construction method of a reinforced concrete protection pile in loess areas, comprising the following steps of: (1) opening holes below the ground by means of a Luoyang shovel having a semicircular end part and a diameter of 150-170 mm; (2) when the external threads of the end part of the Luoyang shovel are in contact with the ground, connecting an extension rod with one end provided with a threaded hole and the other end provided with screw threads to the end part of the Luoyang shovel in a threaded connection manner, and continuing digging; (3) when the external threaded of the end part of the extension rod are in contact with the earth layer, connecting other extension rod and continuing digging until the hole is opened to the depth of the protection pile; (4) inserting a reinforcing steel bar having a diameter of 15-17 mm in the hole, and pouring C15 plain concrete into the hole and compacting the concrete; and (5) cutting off the reinforced concrete to expose the head, thereby completing the construction of the concrete protective pile. The construction method is applied to the range of electrified existing lines in the loess areas; the construction method effectively overcomes the disadvantageous effects of a large-sized construction machine on an existing line contact network and avoids the influence on the running of the existing lines; and the construction method is easy for construction and excellent in effect.
Description
Technical field
The present invention relates to steel concrete fender pile method, be specifically related to job practices at loess area steel concrete fender pile.
Background technology
The construction of railway existing line roadbed scope must be provided with security protection, and protective equipment must not construct to existing facility formation such as contact net line, facilities network basis security threat.Because the control of high pressure contact netting twine limit for height, big machinery can't be constructed, and therefore, must choose other construction tool and construct at the fender pile of electrochemical existing line.
Loess is regional because its special soil property in the work progress of fender pile, needs investment bigger, and in work progress, inevitable existence is unfavorable to the existing line contact net, and work progress influences the normal operation of existing line.
Summary of the invention
The objective of the invention is to overcome the defective of prior art; Provide a kind of and can overcome large-scale construction equipment unfavorable to the existing line contact net; Can effectively avoid in the work progress influencing influence, be easy to construction, respond well loess area steel concrete fender pile job practices the existing line operation.
For realizing above-mentioned purpose, loess provided by the invention area steel concrete fender pile job practices may further comprise the steps:
1., use the end be semicircular luoyang spade toward the perforate of construction below ground, said luoyang spade handle end has external screw thread;
2., when the external screw thread kiss the earth of luoyang spade end, be that screw, the other end are that the extension bar of screw thread is connected the end of luoyang spade through the mode that is threaded with an end, continue to excavate;
3., when the end of extension bar external screw thread contact stratum, connect another root extension bar, continue to excavate, until perforate to the fender pile degree of depth;
4., in the hole, insert reinforcing bar, and concrete perfusion, the closely knit concrete that pours into;
5., blocking steel concrete appears and accomplishes the construction of concrete protection stake.
Preferably, the end diameter of said luoyang spade is 150mm-170mm.
Further, inserting diameter in the said hole is the reinforcing bar of 15mm-17mm.
Further, the concrete that is poured into is the C15 plain concrete.
Again further, the pile spacing of said fender pile is 0.3m.
Further, in work progress, the regional basic location of loess that facilities network is arranged is encrypted.
The present invention has the following advantages: through the test to the inventive method; Contrast existing boring concrete protection stake (stake footpath 0.5m; Pile spacing 0.75m), the construction technology of rail pile, steel sheet pile, luoyang spade pore-forming of the present invention is simple and easy, the concrete protection stake of holing of steel concrete fender pile is reduced investment outlay more than 75%; Reduce investment outlay more than 60% than rail pile, reduce investment outlay more than 70% than steel sheet pile; Utilization the inventive method has overcome large-scale construction equipment unfavorable to the existing line contact net, has effectively avoided the influence to the existing line operation in the work progress, is easy to construction, and economic effect is good with society.
Description of drawings
Fig. 1 is steel concrete fender pile construction process figure of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is made further detailed description:
Loess area steel concrete fender pile job practices may further comprise the steps, and consults construction process shown in Figure 1:
1., use the end for the luoyang spade semicircle, that diameter is 150mm-170mm toward the perforate of construction below ground, said luoyang spade handle end has external screw thread;
2., when the external screw thread kiss the earth of luoyang spade end, be that screw, the other end are that the extension bar of screw thread is connected the end of luoyang spade through the mode that is threaded with an end, continue to excavate;
3., when the end of extension bar external screw thread contact stratum, connect another root extension bar, continue to excavate, until perforate to the fender pile degree of depth;
4., in the hole, to insert diameter be the reinforcing bar of 15mm-17mm, and perfusion C15 plain concrete, after the perfusion plain concrete is accomplished, the closely knit concrete that pours into;
5., blocking steel concrete appears and accomplishes the construction of concrete protection stake.
In the specific embodiment, selecting the end diameter of luoyang spade for use is 16mm, and inserting diameter in the hole is the reinforcing bar of 16mm, and the pile spacing of fender pile is 0.3m.In work progress, the regional basic location of loess that facilities network is arranged is encrypted.Reach design strength in the concrete protection stake, the soil body before the excavation stake.
Range of application of the present invention: loess area, electrochemical existing line;
Main design parameters: manpower luoyang spade (diameter 160mm) pore-forming is adopted in design, interior slotting ф 16mm reinforcing bar, and perfusion C15 plain concrete in the hole, pile spacing 0.3m encrypts location, facilities network basis is arranged.
The present invention adopts manpower luoyang spade pore-forming, inserts reinforcing bar, and the concrete perfusion fender pile becomes electrochemical existing line construction pattern and can be widely used in the interim protection design of Existing Railway Line construction with the design controlling parameter.Because existing line roadbed scope construction in road must be provided with security protection, and protective equipment must not construct to existing facility formation such as contact net line, facilities network basis security threat.Because the control of high pressure contact netting twine limit for height, big machinery can't be constructed, and therefore, adopts manpower luoyang spade pore-forming effectively to avoid above-mentioned problem.
Through this achievement in research, the design of contrast boring concrete protection stake (stake footpath 0.5m, pile spacing 0.75m), rail pile, steel sheet pile; The concrete protection stake of holing of the simple and easy steel concrete fender pile of manpower luoyang spade pore-forming is reduced investment outlay more than 75%; Reduce investment outlay more than 60% than rail pile; Reduce investment outlay more than 70% than steel sheet pile; Use this achievement to overcome large-scale construction equipment unfavorable to the existing line contact net, construction avoids influencing the existing line operation, is easy to construction, and is respond well.
The present invention is applied to the scope of loess area, electrochemical existing line, has effectively overcome large-scale construction equipment unfavorable to the existing line contact net, has avoided the influence to the existing line operation, is easy to construction, and is respond well.
The content that this manual is not done to describe in detail belongs to this area professional and technical personnel's known prior art.
Claims (6)
1. loess area steel concrete fender pile job practices is characterized in that may further comprise the steps:
1., use the end be semicircular luoyang spade toward the perforate of construction below ground, said luoyang spade handle end has external screw thread;
2., when the external screw thread kiss the earth of luoyang spade end, be that screw, the other end are that the extension bar of screw thread is connected the end of luoyang spade through the mode that is threaded with an end, continue to excavate;
3., when the end of extension bar external screw thread contact stratum, connect another root extension bar, continue to excavate, until perforate to the fender pile degree of depth;
4., in the hole, insert reinforcing bar, and concrete perfusion, the closely knit concrete that pours into;
5., blocking steel concrete appears and accomplishes the construction of concrete protection stake.
2. loess according to claim 1 area steel concrete fender pile job practices, it is characterized in that: the end diameter of said luoyang spade is 150mm-170mm.
3. loess according to claim 2 area steel concrete fender pile job practices, it is characterized in that: inserting diameter in the said hole is the reinforcing bar of 15mm-17mm.
4. loess according to claim 3 area steel concrete fender pile job practices, it is characterized in that: the concrete of perfusion is the C15 plain concrete.
5. loess according to claim 4 area steel concrete fender pile job practices, it is characterized in that: the pile spacing of said fender pile is 0.3m.
6. loess according to claim 5 area steel concrete fender pile job practices is characterized in that: in work progress, the regional basic location of loess that facilities network is arranged is encrypted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274975XA CN102444117A (en) | 2011-09-16 | 2011-09-16 | Construction method of reinforced concrete protection pile in loess areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274975XA CN102444117A (en) | 2011-09-16 | 2011-09-16 | Construction method of reinforced concrete protection pile in loess areas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102444117A true CN102444117A (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110274975XA Pending CN102444117A (en) | 2011-09-16 | 2011-09-16 | Construction method of reinforced concrete protection pile in loess areas |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096839A (en) * | 1993-06-21 | 1994-12-28 | 中国有色金属工业长沙勘察院 | Method for boring and making piles with motor luoyang spade |
| EP0796948A1 (en) * | 1994-12-05 | 1997-09-24 | Shogen Okawa | Pile head treating tool for cast-in-place pile, pile head treating method, and cast-in-place piling method |
| CN2918541Y (en) * | 2006-04-20 | 2007-07-04 | 胡永奎 | Piling apparatus |
| CN101718098A (en) * | 2009-11-09 | 2010-06-02 | 中国电力科学研究院 | Micro-pile combined dug composite foundation and construction method thereof |
-
2011
- 2011-09-16 CN CN201110274975XA patent/CN102444117A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096839A (en) * | 1993-06-21 | 1994-12-28 | 中国有色金属工业长沙勘察院 | Method for boring and making piles with motor luoyang spade |
| EP0796948A1 (en) * | 1994-12-05 | 1997-09-24 | Shogen Okawa | Pile head treating tool for cast-in-place pile, pile head treating method, and cast-in-place piling method |
| CN2918541Y (en) * | 2006-04-20 | 2007-07-04 | 胡永奎 | Piling apparatus |
| CN101718098A (en) * | 2009-11-09 | 2010-06-02 | 中国电力科学研究院 | Micro-pile combined dug composite foundation and construction method thereof |
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Application publication date: 20120509 |