CN207277341U - A kind of deformed steel pile pit supporting construction of seam dislocation connection - Google Patents

A kind of deformed steel pile pit supporting construction of seam dislocation connection Download PDF

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Publication number
CN207277341U
CN207277341U CN201721092349.8U CN201721092349U CN207277341U CN 207277341 U CN207277341 U CN 207277341U CN 201721092349 U CN201721092349 U CN 201721092349U CN 207277341 U CN207277341 U CN 207277341U
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special
piling bar
shaped
supporting construction
pit supporting
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赵升峰
熊穗
蔡云
章新
陈祉阳
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Nanjing Surveying And Mapping Investigation And Research Institute Ltd By Share Ltd
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Nanjing Surveying And Mapping Investigation And Research Institute Ltd By Share Ltd
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Abstract

A kind of deformed steel pile pit supporting construction of seam dislocation connection is the utility model is related to, including is connected with each other by the fastener that multiple special-shaped piling bars are set by pile body body, forms townhouse formula foundation pit supporting construction;Special-shaped piling bar includes special-shaped piling bar rectangle midfield, and four right-angle sides of special-shaped piling bar rectangle midfield are respectively provided with cantilever, and 4 cantilevers of four right-angle sides are symmetrical along rectangle diagonal.The utility model is linked together by midfield for the mutual snapping of special-shaped piling bar of rectangle, forms townhouse truss-like foundation pit supporting construction, forms double-deck earth-retaining and water sealing structure, improves the ability of supporting construction resistance to deformation;Twice weather check is formed at the same time, and seam shifts to install, and extends infiltration path, reduces the probability of piling bar supporting side wall percolating water.Special-shaped piling bar can be produced in batches in factory, easy for construction, and pile quality is good, cost-effective, and construction quality can effectively be ensured.

Description

A kind of deformed steel pile pit supporting construction of seam dislocation connection
Technical field
Building foundation pit supporting device is the utility model is related to, is specially a kind of deformed steel pile foundation hole branch of seam dislocation connection Protection structure.
Background technology
Traditional base pit engineering supporting uses cast-in-situ bored pile, but because its speed of application is slow, curing cycle is grown, and pollutes environment Seriously, construct in urban district, be gradually restricted.Therefore, the mode of cement mixing method interpolation H profile steel, shape are used in engineering The foundation pit supporting construction changed together into earth-retaining and sealing, but equally exist soil cement curing cycle it is long the shortcomings that.
Attempt to use U-shaped Larsen steel sheet pile as pattern foundation pit supporting structure and small underground on the basis of disadvantages mentioned above, in engineering The supporting construction in garage, since U-shaped Larsen steel sheet pile construction technique is simple, speed of application is fast, has the performance of sealing concurrently, construction knot Shu Houke extracts recycling, so that it is gradually widely used in base pit engineering.But conventional u-shaped Larsen steel plate Stake is poor there are resistance capacity to deformation, and fastening position infiltration is serious between stake and stake in the stratum of rich groundwater, for construction Environmental requirement aridity and the more demanding base pit engineering of Deformation control are difficult to meet the requirements.
Therefore, in order to solve the above-mentioned technical problem, it is necessary to a kind of new piling bar is provided and is used for pattern foundation pit supporting structure, is one Good problem to study.
The content of the invention
In order to overcome above-mentioned technological deficiency, the utility model proposes one kind is easily operated, horizontal bearing capacity is high, economic conjunction Reason, suitable for the deformed steel pile pit supporting construction of the seam dislocation connection of silty soil, sandy soil and soft soil foundation.
What the purpose of this utility model was realized in:
A kind of deformed steel pile pit supporting construction of seam dislocation connection, it is characterised in that:Including by multiple special-shaped piling bars 1 The fastener set by pile body body is connected with each other, and forms townhouse formula foundation pit supporting construction.
The special-shaped piling bar 1 includes special-shaped piling bar rectangle midfield 4, and four of the special-shaped piling bar rectangle midfield 4 are straight The arm of angle is respectively provided with cantilever, and 4 cantilevers of four right-angle sides are symmetrical along rectangle diagonal.
In the cantilever at four right angles of the abnormal shape piling bar, two of which right-angle side cantilevered distal end is provided with circular steel ball 3, Two other right-angle side cantilevered distal end is provided with the arc-shaped buckle 2 more than 180 degree;
The arc-shaped buckle is 270oArc-shaped buckle;
The jib-length for being provided with circular steel ball 2 is the 1/3 of the jib-length of the arc-shaped buckle 2 of setting;
The both sides jib-length summation of the special-shaped piling bar rectangle midfield 4 is 0.8 times of rectangle length of short sides;
The abnormal shape piling bar 1 and adjacent special-shaped piling bar 1 are mutual, pass through wherein one special-shaped piling bar right-angle side cantilever End circle steel ball, fastener are closely joined together, are formed in another special-shaped piling bar right-angle side cantilevered distal end circular arc buckle The deformed steel pile pit supporting construction of seam dislocation connection;
The ratio between the short side of the special-shaped piling bar rectangle midfield 4 and long side are 0.6~0.8, the section of the abnormal shape piling bar Specific size, calculates according to engineering geological condition and determines.
Positive beneficial effect:The utility model is linked together by midfield for the mutual snapping of special-shaped piling bar of rectangle, shape Into townhouse truss-like foundation pit supporting construction, double-deck earth-retaining and water sealing structure are formed, improves the ability of supporting construction resistance to deformation; Twice weather check is formed at the same time, and seam shifts to install, and extends infiltration path, reduces the several of piling bar supporting side wall percolating water Rate.Special-shaped piling bar can be produced in batches in factory, easy for construction, and pile quality is good, cost-effective, and construction quality can obtain effectively Ensure.
Brief description of the drawings
Fig. 1 is the utility model embodiment unitary construction schematic diagram;
Fig. 2 is special-shaped piling bar cross-sectional view;
Fig. 3 is special-shaped piling bar schematic perspective view.
In figure:Special-shaped piling bar 1, circular arc buckle 2, circular steel ball 3, special-shaped piling bar rectangle midfield 4.
Embodiment
With reference to specific drawings and examples, the utility model is described in further detail.
Referring to Fig. 1~3, the utility model provides a kind of deformed steel pile pit supporting construction of seam dislocation connection, institute The special-shaped piling bar midfield stated is rectangle, and four right-angle sides of rectangle are respectively provided with cantilever;4 cantilevers of four right-angle sides are along square Shape diagonal is symmetrical;Two right-angle side cantilevered distal ends of the abnormal shape piling bar are provided with circular steel ball;The abnormal shape piling bar Two other right-angle side cantilevered distal end be provided with 270oArc-shaped buckle;The jib-length of the circular steel ball of setting is setting 270oThe 1/3 of arc-shaped buckle jib-length;The abnormal shape piling bar is mutual, passes through the right-angle side of wherein one special-shaped piling bar Cantilevered distal end circle steel ball, right-angle side cantilevered distal end 270 of the fastener in another special-shaped piling baroIn circular arc buckle, close connection Together, the deformed steel pile pit supporting construction of seam dislocation connection is formed.Work progress, it is different using mechanical sink one first Section-steel Piles, then as stated above, by the follow-up special-shaped piling bar of root snapping sink, form townhouse combined foundation ditch support structure.
The deformed steel pile lining is thick to be not less than 10mm, steel grade Q235B;Two right-angle sides of the abnormal shape piling bar Cantilevered distal end is arranged to circular steel ball, and the wherein diameter of round steel ball is not less than 20mm;Two other right angle of the abnormal shape piling bar Side cantilevered distal end is arranged to 270oThe diameter of arc-shaped buckle, wherein circular arc buckle is more than 8~10mm of circular steel ball size.
According to a kind of deformed steel pile pit supporting construction of seam dislocation connection provided by the utility model, according to following step Rapid construction is implemented:A, smooth location;B, place cleaning barrier;What c, line setting determined special-shaped piling bar squeezes into position and suitable Sequence;Piling saddle is installed d,;E, mechanical piling is utilized;F, pit earthwork excavation construction, and underground structure of constructing;G, extraction is utilized Equipment extracts special-shaped piling bar;H, the hole after pile pulling is handled.
The utility model be suitable for harbour, science of bridge building cofferdam, pipe gallery, flood control cutout and pattern foundation pit supporting structure etc. it is interim or Permanent construction project, is particularly suitable for base pit engineering high to pattern foundation pit supporting structure deformation requirements, that the construction period is especially tight and small-sized The base pit engineerings such as underground garage.
A kind of deformed steel pile pit supporting construction of seam dislocation connection of the utility model compared with prior art, has such as Lower advantage and effect:The utility model is linked together by midfield for the mutual snapping of special-shaped piling bar of rectangle, forms townhouse purlin Posture foundation pit supporting construction, forms double-deck earth-retaining and water sealing structure, improves the ability of supporting construction resistance to deformation;Formed at the same time Twice weather check, and seam shifts to install, and extends infiltration path, reduces the probability of piling bar supporting side wall percolating water.It is special-shaped Piling bar can be produced in batches in factory, easy for construction, and pile quality is good, cost-effective, and construction quality can effectively be ensured.
The above, is only the preferred embodiment of the utility model, not makees limit in any form to the utility model System, any person skilled in the art, is not departing from the range of technical solutions of the utility model, according to the utility model Technical spirit, any simple modification, equivalent substitution and the improvement made to above example etc., still falls within the utility model Within the protection domain of technical solution.

Claims (7)

  1. A kind of 1. deformed steel pile pit supporting construction of seam dislocation connection, it is characterised in that:Including by multiple special-shaped piling bars(1) The fastener set by pile body body is connected with each other, and forms townhouse formula foundation pit supporting construction;The special-shaped piling bar(1)Including different Section-steel Piles rectangle midfield(4), the special-shaped piling bar rectangle midfield(4)Four right-angle sides be respectively provided with cantilever, and four are straight 4 cantilevers of the arm of angle are symmetrical along rectangle diagonal.
  2. A kind of 2. deformed steel pile pit supporting construction of seam dislocation connection according to claim 1, it is characterised in that:Institute In the cantilever at four right angles of the special-shaped piling bar stated, two of which right-angle side cantilevered distal end is provided with circular steel ball(3), in addition two A right-angle side cantilevered distal end is provided with the arc-shaped buckle more than 180 degree(2).
  3. A kind of 3. deformed steel pile pit supporting construction of seam dislocation connection according to claim 2, it is characterised in that:Institute The arc-shaped buckle stated(2)For 270oArc-shaped buckle.
  4. A kind of 4. deformed steel pile pit supporting construction of seam dislocation connection according to claim 2, it is characterised in that:Institute That states is provided with circular steel ball(3)Jib-length to set arc-shaped buckle(2)Jib-length 1/3.
  5. A kind of 5. deformed steel pile pit supporting construction of seam dislocation connection according to claim 1, it is characterised in that:Institute The special-shaped piling bar rectangle midfield stated(4)Both sides jib-length summation be 0.8 times of rectangle length of short sides.
  6. A kind of 6. deformed steel pile pit supporting construction of seam dislocation connection according to claim 1, it is characterised in that:Institute State special-shaped piling bar(1)With adjacent special-shaped piling bar(1)Between each other, justified by wherein one special-shaped piling bar right-angle side cantilevered distal end Shape steel ball, fastener are closely joined together in another special-shaped piling bar right-angle side cantilevered distal end circular arc buckle, it is wrong to form seam The deformed steel pile pit supporting construction of position connection.
  7. A kind of 7. deformed steel pile pit supporting construction of seam dislocation connection according to claim 1, it is characterised in that:Institute The special-shaped piling bar rectangle midfield stated(4)Short side and the ratio between long side be 0.6~0.8, the specific size in section of the abnormal shape piling bar, Calculated and determined according to engineering geological condition.
CN201721092349.8U 2017-08-29 2017-08-29 A kind of deformed steel pile pit supporting construction of seam dislocation connection Active CN207277341U (en)

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Application Number Priority Date Filing Date Title
CN201721092349.8U CN207277341U (en) 2017-08-29 2017-08-29 A kind of deformed steel pile pit supporting construction of seam dislocation connection

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173003A (en) * 2020-03-23 2020-05-19 南京市测绘勘察研究院股份有限公司 Box-type buckling steel pile supporting structure and construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173003A (en) * 2020-03-23 2020-05-19 南京市测绘勘察研究院股份有限公司 Box-type buckling steel pile supporting structure and construction method

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