CN103306301A - Pile foundation structure and construction method thereof based on fender post and basement baseplate - Google Patents
Pile foundation structure and construction method thereof based on fender post and basement baseplate Download PDFInfo
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- CN103306301A CN103306301A CN2013102799550A CN201310279955A CN103306301A CN 103306301 A CN103306301 A CN 103306301A CN 2013102799550 A CN2013102799550 A CN 2013102799550A CN 201310279955 A CN201310279955 A CN 201310279955A CN 103306301 A CN103306301 A CN 103306301A
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Abstract
The invention relates to a pile foundation structure based on a fender post and a basement baseplate. The pile foundation structure comprises the fender post, the basement baseplate and engineering piles, wherein the engineering piles are fixedly amounted on the lower surface of the basement baseplate; the basement baseplate and the fender post are fixedly mounted through the engineering piles. According to the structure, the originally discarded fender post is reliably connected to and basement baseplate to form permanent engineering piles and reduce the number of the engineering piles close to the external wall of the basement, so that the construction cost is reduced, safety and reliability are achieved, abundant materials are saved, and excellent economic and social benefits are realized. According to the invention, the structure is simple, the design is scientific and reasonable, and cast-in-place reinforced concrete fender posts in a foundation pit replace part of engineering piles, so the number of the engineering piles is decreased, the construction cost is reduced, and resources are saved.
Description
Technical field
The invention belongs to pile foundation structure field, especially a kind of pile foundation structure and job practices thereof based on fender post and basement bottom board.
Background technology
Along with the progress of urbanization, construction land day is becoming tight.Building utilizes height space to become highrise building, on the other hand to the underground development utilization underground space in order to obtain to try one's best large usable floor area at Limited Land on the one hand.These two kinds of trend are all so that the basement of building is done darker and darker, and the foundation depth of building excavation strengthens thereupon.For the safety of the stable and surrounding building, town road and the facility that guarantee the construction stage foundation ditch, darker building foundation pit all can use space enclosing structure and support system.The darker area of foundation ditch is larger, and the larger cost of the scale of space enclosing structure and support system is higher.Up to the present, these space enclosing structures and support system go out ground at the building subject construction, the fertile groove backfill of foundation ditch has just been passed into disuse later on, a large amount of steel bar concrete pile materials only uses the very short time just to be embedded in and does not undergroundly recycle, and has caused very large waste.These waste of material seriously deviate from the main trend of building a conservation-minded society.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of pile foundation structure based on fender post and basement bottom board is provided, this pile foundation is simple in structure, design science rationally, can be with building foundation pit cast-in-situ steel reinforced concrete fender post Substitute For Partial engineering pile, thereby reduce the quantity of engineering pile, reduce construction costs, economize on resources.
Another object of the present invention is to provide a kind of job practices of the pile foundation structure based on fender post and basement bottom board.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of pile foundation structure based on fender post and basement bottom board, this pile foundation structure comprises fender post, basement bottom board and engineering pile, and engineering pile is packed in below the basement bottom board, and it is fixedly mounted with basement bottom board and fender post.
And, be fixedly mounted with by anchor slab or dowel welding between described basement bottom board and the fender post.
And, be fixedly mounted with by anchor slab or dowel welding between the end face of described basement bottom board and the fender post.
And described fender post upper end is fixed with Guan Liang.
And described fender post is cast-in-situ steel reinforced concrete fender post or prefabricated reinforced concrete fender post.
And described engineering pile is cast-in-situ steel reinforced concrete castinplace pile, precast reinforced concrete pile or piling bar.
A kind of job practices of the pile foundation structure based on fender post and basement bottom board, the step of its method is as follows:
⑴, fender post and engineering pile are carried out piling construction;
⑵ carry out excavation of foundation pit after, piling construction are complete;
⑶ carry out the basement bottom board construction after, excavation of foundation pit are complete;
⑷, will be solidly installed between basement bottom board and the fender post, the pile foundation structure construction is complete.
And described fender post is cast-in-situ steel reinforced concrete fender post or prefabricated reinforced concrete fender post.
And the mode that is fixedly mounted with between described basement bottom board and the fender post adopts welding manner, mechanical connection manner or bar splicing mode.
And, be fixedly mounted with by anchor slab or dowel welding between described basement bottom board and the fender post.
Advantage of the present invention and beneficial effect are:
This is based on the pile foundation structure of fender post and basement bottom board, this pile foundation structure comprises fender post, basement bottom board and engineering pile, engineering pile is packed in below the basement bottom board, it is fixedly mounted with basement bottom board and fender post, the fender post that this structure will originally be passed into disuse reliably is connected with basement bottom board, make it to become nonvolatil engineering pile, can save a part near the engineering pile of outer wall of basement, reduced construction costs, safe and reliable, and very material-saving has extraordinary economic and social benefit.The present invention is simple in structure, design science is reasonable, can be with building foundation pit cast-in-situ steel reinforced concrete fender post Substitute For Partial engineering pile, thereby reduce the quantity of engineering pile, reduce construction costs, economize on resources.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of pile foundation structure based on fender post and basement bottom board, this pile foundation structure comprises fender post 4, basement bottom board 8 and engineering pile 9, engineering pile is packed in below the basement bottom board, the fender post upper end is fixed with hat beam 3, the fender post arranged outside has water-stop curtain 2, water-stop curtain upper end arranged outside has bank protection 1, it is fixedly mounted with basement bottom board and fender post, be fixedly mounted with by anchor slab or dowel welding between basement bottom board and the fender post furtherly, be fixedly mounted with by anchor slab or dowel welding between the end face of basement bottom board and the fender post furtherly, the specifications and models of anchor slab or dowel are passed through calculative determination according to force request.Be fixedly mounted with by anchor slab 5 welding between the end face of the present embodiment basement bottom board and the fender post, fender post is cast-in-situ steel reinforced concrete fender post or prefabricated reinforced concrete fender post, the present embodiment adopts the cast-in-situ steel reinforced concrete fender post, engineering pile is cast-in-situ steel reinforced concrete castinplace pile, precast reinforced concrete pile or piling bar, and the present embodiment engineering pile is the cast-in-situ steel reinforced concrete castinplace pile.
A kind of job practices of the pile foundation structure based on fender post and basement bottom board, the step of its method is as follows:
⑴, fender post and engineering pile are carried out piling construction; Fender post is cast-in-situ steel reinforced concrete fender post or prefabricated reinforced concrete fender post, and the present embodiment fender post adopts the cast-in-situ steel reinforced concrete fender post, and the building foundation pit fender post generally adopts mud off pore-forming technique or long-spiral drilling machine pore-forming technique; Engineering pile can be the various stake types for resistance to compression, resistance to plucking and opposing horizontal force such as preformed pile, castinplace pile, piling bar.Pile foundation engineering is substituted by the bracing of foundation pit stake near the replaced engineering pile 7 below outer wall of basement 6 places designed according to this invention, near the engineering pile quantity when its quantity obviously is less than general design the exterior wall.The part engineering is at this position even can not establish engineering pile, is substituted by fender post fully.Pile foundation construction, maintenance and detection all get final product according to self construction requirement of various stake types.Sequence of construction is according to being conducive to guarantee that the principle of pile foundation construction quality is definite.
⑵ carry out excavation of foundation pit after, piling construction are complete; Go along with sb. to guard him the excavation pit that requires of design according to building foundation pit, finish the space enclosing structure construction.Bracing of foundation pit stake beginning this moment is brought into play the effect of gear soil with supporting and protection structure.
⑶ carry out the basement bottom board construction after, excavation of foundation pit are complete; Requirement construction basement bottom board and pile foundation structure according to design of building structures.The effect of bracing of foundation pit stake performance this moment gear soil.
⑷, will be solidly installed between basement bottom board and the fender post, the pile foundation structure construction is complete.The mode that is fixedly mounted with between basement bottom board and the fender post adopts welding manner, mechanical connection manner or bar splicing mode, adopts the anchor slab welding manner to be solidly installed between basement bottom board and the fender post between the present embodiment basement bottom board and the fender post.The effect of bracing of foundation pit stake performance this moment gear soil, behind pit backfill, the construction basement is after more than the grade, according to the fertile groove of designing requirement backfill foundation ditch.The gear soil effect of bracing of foundation pit stake this moment is finished, and continues to play a role then become the engineering pile of bearing agent structure.For most of object of construction production, near the engineering pile the outer wall of basement can be by replacing whole, and contiguous exterior wall one is striden post engineering pile off the net and can partly be substituted.
Operating principle of the present invention: the basement foundation ditch fender post of building plays the effect of gear soil in the construction stage, and generally the complete rear fender post of basement construction is namely passed into disuse.Measure by pre-buried anchor slab in fender post or reservation dowel when the main structure construction basement bottom board, reliably is connected this base plate with fender post.This connection does not affect fender post and acts on as fender post performance gear soil during foundation pit construction, can improve on the contrary the stressed reliability of fender post.Behind basement completion pit backfill, fender post is positioned at the following part of basement bottom board as the engineering pile of basement agent structure, connects the effect of performance resistance to compression or resistance to plucking by this.
The present invention utilizes specific connected mode that the bracing of foundation pit stake reliably is connected with basement bottom board, solved the problem that a large amount of provisional bracing of foundation pit stakes is transformed into the permanent work stake, can be with building foundation pit cast-in-situ steel reinforced concrete fender post Substitute For Partial engineering pile, thus the quantity of engineering pile reduced.
Application of the present invention is for five layers of commercial building of superstructure area 20000 square meters and with the engineering of 6 meters dark garages of one deck basement, several 258 of its engineering pile under normal circumstances.By using the bracing of foundation pit stake to substitute engineering pile, near all engineering piles the outer wall of basement totally 60 all can adopt the bracing of foundation pit stake to substitute.The engineering pile substitution rate of this example is 23.2%, and maximum substitution rate can reach 13% to 32% of engineering pile total amount according to varying in size of basement.
Claims (10)
1. pile foundation structure based on fender post and basement bottom board, this pile foundation structure comprises fender post, basement bottom board and engineering pile, engineering pile is packed in below the basement bottom board, it is characterized in that: basement bottom board and fender post are fixedly mounted with.
2. the pile foundation structure based on fender post and basement bottom board according to claim 1 is characterized in that: be fixedly mounted with by anchor slab or dowel welding between described basement bottom board and the fender post.
3. the pile foundation structure based on fender post and basement bottom board according to claim 1 and 2 is characterized in that: be fixedly mounted with by anchor slab or dowel welding between the end face of described basement bottom board and the fender post.
4. the pile foundation structure based on fender post and basement bottom board according to claim 1 is characterized in that: be fixed with Guan Liang on the described fender post.
5. according to claim 1 and 2 or 4 described pile foundation structures based on fender post and basement bottom board, it is characterized in that: described fender post is cast-in-situ steel reinforced concrete fender post or prefabricated reinforced concrete fender post.
6. the pile foundation structure based on fender post and basement bottom board according to claim 1, it is characterized in that: described engineering pile is cast-in-situ steel reinforced concrete castinplace pile, precast reinforced concrete pile or piling bar.
7. the job practices of the pile foundation structure based on fender post and basement bottom board as claimed in claim 1, it is characterized in that: the step of the method is as follows:
⑴, fender post and engineering pile are carried out piling construction;
⑵ carry out excavation of foundation pit after, piling construction are complete;
⑶ carry out the basement bottom board construction after, excavation of foundation pit are complete;
⑷, will be solidly installed between basement bottom board and the fender post, the pile foundation structure construction is complete.
8. the job practices of the pile foundation structure based on fender post and basement bottom board according to claim 7, it is characterized in that: described fender post is cast-in-situ steel reinforced concrete fender post or prefabricated reinforced concrete fender post.
9. the job practices of the pile foundation structure based on fender post and basement bottom board according to claim 7, it is characterized in that: the mode that is fixedly mounted with between described basement bottom board and the fender post adopts welding manner, mechanical connection manner or bar splicing mode.
10. the job practices of the pile foundation structure based on fender post and basement bottom board according to claim 7 is characterized in that: be fixedly mounted with by anchor slab or dowel welding between described basement bottom board and the fender post.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102799550A CN103306301A (en) | 2013-07-04 | 2013-07-04 | Pile foundation structure and construction method thereof based on fender post and basement baseplate |
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| CN2013102799550A CN103306301A (en) | 2013-07-04 | 2013-07-04 | Pile foundation structure and construction method thereof based on fender post and basement baseplate |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895089A (en) * | 2015-04-08 | 2015-09-09 | 山东大学 | Construction method of permanent retaining system characterized by joint work of basement floor slabs and retaining piles |
| CN105019472A (en) * | 2015-07-14 | 2015-11-04 | 周兆弟 | Composite fender pile for building basement |
| CN105040706A (en) * | 2015-05-19 | 2015-11-11 | 昆明理工大学 | Double-row pile support structure capable of fully utilizing basement space and construction method of double-row pile support structure |
| CN105133602A (en) * | 2015-07-27 | 2015-12-09 | 周兆弟 | Basement structure connected through fender posts |
| WO2017008466A1 (en) * | 2015-07-14 | 2017-01-19 | 周兆弟 | Composite retaining pile structure |
| WO2017016184A1 (en) * | 2015-07-27 | 2017-02-02 | 周兆弟 | Fender post suitable for building basement |
| CN107476294A (en) * | 2017-06-25 | 2017-12-15 | 吴震 | A kind of friction pile is combined into one structure and construction method with structure pile |
| CN108331015A (en) * | 2017-12-12 | 2018-07-27 | 上海市政工程设计研究总院（集团）有限公司 | Soft clay foundation adjoins High-filled emkankment pipe gallery and its construction technology |
| CN112982427A (en) * | 2021-03-22 | 2021-06-18 | 云南建投第一勘察设计有限公司 | Reinforcement construction method for foundation pit dangerous case in soft soil area |
| CN113737813A (en) * | 2021-09-30 | 2021-12-03 | 山东大学 | Structural engineering leading rock-soil structured permanent support system and design method |
| CN113863314A (en) * | 2021-09-27 | 2021-12-31 | 中交第二航务工程局有限公司 | Synchronous construction method for concrete occlusion supporting pile and main engineering pile |
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| CN101117805A (en) * | 2007-08-22 | 2008-02-06 | 浙江大学 | Underground engineering one-pile multi-use semi reverse construction method |
| CN102518142A (en) * | 2011-12-12 | 2012-06-27 | 攀钢集团工程技术有限公司 | Pile and wall combined sealing system and construction method thereof |
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| JP2001248167A (en) * | 2000-03-01 | 2001-09-14 | Shimizu Corp | Structure of building foundation |
| CN101117800A (en) * | 2007-08-22 | 2008-02-06 | 浙江大学 | Method for one-pile-three-use in underground engineering |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895089A (en) * | 2015-04-08 | 2015-09-09 | 山东大学 | Construction method of permanent retaining system characterized by joint work of basement floor slabs and retaining piles |
| CN105040706A (en) * | 2015-05-19 | 2015-11-11 | 昆明理工大学 | Double-row pile support structure capable of fully utilizing basement space and construction method of double-row pile support structure |
| WO2017008466A1 (en) * | 2015-07-14 | 2017-01-19 | 周兆弟 | Composite retaining pile structure |
| CN105019472A (en) * | 2015-07-14 | 2015-11-04 | 周兆弟 | Composite fender pile for building basement |
| WO2017008471A1 (en) * | 2015-07-14 | 2017-01-19 | 周兆弟 | Composite retaining pile for use in constructing basement |
| WO2017016183A1 (en) * | 2015-07-27 | 2017-02-02 | 周兆弟 | Basement structure connected by using fender posts |
| CN105133602A (en) * | 2015-07-27 | 2015-12-09 | 周兆弟 | Basement structure connected through fender posts |
| WO2017016184A1 (en) * | 2015-07-27 | 2017-02-02 | 周兆弟 | Fender post suitable for building basement |
| CN107476294A (en) * | 2017-06-25 | 2017-12-15 | 吴震 | A kind of friction pile is combined into one structure and construction method with structure pile |
| CN108331015A (en) * | 2017-12-12 | 2018-07-27 | 上海市政工程设计研究总院（集团）有限公司 | Soft clay foundation adjoins High-filled emkankment pipe gallery and its construction technology |
| CN112982427A (en) * | 2021-03-22 | 2021-06-18 | 云南建投第一勘察设计有限公司 | Reinforcement construction method for foundation pit dangerous case in soft soil area |
| CN113863314A (en) * | 2021-09-27 | 2021-12-31 | 中交第二航务工程局有限公司 | Synchronous construction method for concrete occlusion supporting pile and main engineering pile |
| CN113737813A (en) * | 2021-09-30 | 2021-12-03 | 山东大学 | Structural engineering leading rock-soil structured permanent support system and design method |
| CN113737813B (en) * | 2021-09-30 | 2023-03-14 | 山东大学 | Structural engineering-oriented rock-soil structured permanent support system and design method |
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Application publication date: 20130918 |