CN201794070U

CN201794070U - Implanted anti-corrosion precast pile applied to saline soil foundation

Info

Publication number: CN201794070U
Application number: CN2010205458263U
Authority: CN
Inventors: 黄明
Original assignee: SHAANXI CHANGJIA INDUSTRY DEVELOPMENT Co Ltd
Current assignee: SHAANXI CHANGJIA INDUSTRY DEVELOPMENT Co Ltd
Priority date: 2010-09-28
Filing date: 2010-09-28
Publication date: 2011-04-13
Anticipated expiration: 2020-09-28

Abstract

The utility model relates to an implanted anti-corrosion precast pile applied to a saline soil foundation. A pile body and a pile tip are precast respectively, and the pile body is tightly covered by a geosynthetic material and an anti-corrosion material to achieve anti-corrosion effect. Compared with a filling pile or other piles, the utility model has the advantages that: the precast pile has high construction speed and good anti-corrosion effect, is easy to operate, particularly ensures that the anti-corrosion layer of the pile body cannot be damaged, reduces engineering cost, saves a large number of materials, ensures the engineering quality of foundations in saline soil areas, and the like. The precast pile is suitable for pile foundation engineering in the saline soil foundation.

Description

The implanted anticorrosion preformed pile of using in the brining ground foundation

Technical field

The utility model relates to a kind of implanted anticorrosion preformed pile, particularly a kind of implanted anticorrosion preformed pile that is adapted at using in the brining ground foundation.

Background technology

Be rich in the saline soil area of bittern, the mechanical strength of foundation soil is low, compressibilty is high, and general building must adopt artificial foundation and pile foundation; Important building and Rail Highway bridge must adopt the steel bar concrete pile plinth.Because contain in the brining ground foundation soil building materials such as steel, concrete had the sulfate radical of deep-etching and the bittern of chlorion.Steel and concrete are the main body building materials of present various important buildings, so be that the builing industry personnel research and develop target at saline soil area steel work and concrete anticorrosion problem always.Structure at exposed ground can regularly be brushed various etch-proof materials, and the anticorrosion difficulty that just compares of underground construction, member directly contacts with bittern with the salinized soil of deep-etching on the one hand, and the 2nd, can't regularly brush anticorrosive.Etch-proof stake at present commonly used mainly contains three kinds: (one) is the cast-in-place concrete pile with thick walled steel tube parcel and protection, and wall thickness is general 〉=10 ㎜, promptly in the life-span internal corrosion of using less than the concrete pile body.General stake is long at tens meters, 0.5～2.0 meter in stake footpath, and the steel material of use is very big, and cost is very high; These steel are also eroded year by year simultaneously.(2) cast-in-place concrete pile or the preformed pile of employing anti-corrosion concrete or adding anticorrisive agent material, anticorrisive agent material and anti-corrosion concrete price height, the cost of increase engineering.(3) anticorrosion concrete Wrapping pile, this stake type and job practices are suitable for large-scale pile body, use at brining ground foundation.To the pile foundation of the big less stake type of pile body quantity, the speed of application of the method is slower, and gene is that shear strength is low in saturated salt marsh soil, and the necking down and the hole of collapsing easily take place in the stake hole, and it is complicated that construction technology seems.So, to study a kind of cheaply, it is essential that technology can prevent effectively that simply again the novel pile body of bittern corrosion from becoming.

The utility model content

The purpose of this utility model provides a kind of implanted anticorrosion preformed pile, solve etch-proof stake engineering cost height commonly used at present, construction technology complicated technology problem.

For achieving the above object, the utility model adopts following technical scheme:

The implanted anticorrosion preformed pile of using in a kind of brining ground foundation, the pile body that comprises precast concrete, the peripheral close anticorrosion cloth that is tied with of described pile body, pile body is implanted end the piling bar point is installed, described piling bar point is the soffit that taper that one group of gusset is combined into is welded on base plate, and plate upper surface is welded with snap ring, and the internal diameter of described snap ring equates with the external diameter of pile body, the pile body bottom snaps in the snap ring, and described anticorrosion cloth is the synthetic geotextiles of anti-corrosion material.

The external surface of described pile body and anticorrosion cloth all is coated with anti-corrosion material.

The cross section of described pile body and snap ring is circular or square.

Compared with prior art the utlity model has following characteristics and beneficial effect:

1. the utility model adopts domestic and international construction work to be extensive use of the prefabricated concrete pile body of geosynthetics and anti-corrosion material parcel, and simple in structure, cheap, material source is extensive; The preformed pile that is adopted is the ordinary concrete preformed pile, can reduce construction cost thereby the manufacture craft difficulty is little.

2. the machinery that adopts of the construction of the anticorrosion preformed pile of the utility model is pile foundation engineering vibration sinking tube rig and Clothoid type rig commonly used, the process maturation, and implementation result is easy to guarantee, and the engineering properties of anticorrosion preformed pile and static pressure are with to squeeze into pile sinking identical.

3. the utility model is implanted the measure that the preformed pile method has been taked the protection pile body, and the stake asepticised outer layer can be not destroyed, guarantees anticorrosion ability.Simultaneously fast at saturated brining ground foundation speed of application, the bad phenomenon such as hole, necking down of collapsing can not appear.

The utility model has overcome traditional etch-proof stake engineering cost height, the shortcoming of construction technology complexity, and it is cheap to have solved anticorrosion stake, and technology can effectively prevent the technical problem of bittern corrosion simply again.

The utility model can be widely used in pile foundation engineering in the brining ground foundation.

Description of drawings

The utility model is described in more detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 makees anticorrosion precast pile schematic diagram on ground.

Fig. 3 is a Clothoid type rig schematic diagram in place.

Fig. 4 is a Clothoid type rig pile hole schematic diagram.

Fig. 5 prepares schematic diagram before preformed pile is implanted.

Fig. 6 is the schematic diagram in the anticorrosion preformed pile embedded pile hole of slinging.

Fig. 7 is pile body and pile body connection diagram.

Fig. 8 is that pile body and pile crown connecting portion are made the preservative treatment schematic diagram.

Fig. 9 implants the anticorrosion preformed pile to the design elevation schematic diagram.

Figure 10 is the slit schematic diagram between closely knit pile body and the stake hole wall.

Figure 11 is a pile crown preservative treatment schematic diagram.

Figure 12 is a piling bar point structural representation.

Figure 13 is the upward view of Figure 12.

Figure 14 is the vertical view of Figure 12.

Figure 15 is pile body and piling bar point connection diagram.

Figure 16 is a lifting protection chuck structural representation.

Figure 17 is the elevation of Figure 16.

Figure 18 is a Submersed type stake machine location schematic diagram.

Figure 19 is a Submersed type stake machine pore-forming schematic diagram.

Figure 20 is that Submersed type stake machine is implanted the pile body schematic diagram.

Figure 21 is Submersed type stake machine pile body and pile body connection diagram.

Figure 22 is a Submersed type stake machine immersed tube vibratory compaction slit schematic diagram.

Figure 23 is that Submersed type stake machine implantation anticorrosion preformed pile is finished figure.

Reference numeral: 1-pile body, 2-piling bar point, 2.1-gusset, 2.2-base plate, 2.3-snap ring, the anticorrosion cloth of 3-, 4-Submersed type stake machine, 5-stake hole, 6-lifting protection chuck, the semicircle anchor ear of 6.1-, 6.2-split bolt, 6.3-suspension ring are buckled, 7-slit, 8-compact material, 9-anticorrosive coat, 10-vibration sinking tube, 11-weld seam, 12-design elevation, 13-Clothoid type stake machine.

The specific embodiment

Embodiment is referring to shown in Figure 1, the implanted anticorrosion preformed pile of using in a kind of brining ground foundation, the pile body 1 that comprises precast concrete, the described pile body 1 peripheral close anticorrosion cloth 3 that is tied with, pile body is implanted end piling bar point 2 is installed, described piling bar point 2 is the soffit that taper that one group of gusset 2.1 is combined into is welded on base plate 2.2, plate upper surface is welded with snap ring 2.3, the internal diameter of described snap ring 2.3 equates with the external diameter of pile body 1, the pile body bottom snaps in the snap ring 2.3, and described anticorrosion cloth 3 is the synthetic geotextiles of anti-corrosion material.

The external surface of described pile body 1 and anticorrosion cloth 3 all is coated with anti-corrosion material.

The cross section of described pile body 1 and snap ring 2.3 is circular or square.

Implementation method of the present utility model is referring to shown in Figure 18～22, and step is as follows:

Step 1 is coated with anti-corrosion material at pile body 1 external surface of precast concrete, wraps up in anticorrosion cloth 3, wraps up in anticorrosion cloth 3 external surfaces and is coated with anti-corrosion material and makes the anticorrosion preformed pile, makes piling bar head 2, simultaneously pile-forming machine perching;

Step 2 is connected vibration sinking tube 10 ends of piling bar head 2 with the stake machine, with the vibration sinking tube 10 of stake machine fix stake position also pore-forming to design elevation 12;

Step 3 is installed lifting protection chuck 6 at the lifting end of anticorrosion precast pile, does the anticorrosion precast pile and implants preparation;

Step 4, the lifting appliance of stake machine reliably is connected with the lifting protection chuck 6 of the pile body 1 of anticorrosion preformed pile, and the pile body 1 of anticorrosion preformed pile is packed into vibration sinking tube 10;

Step 5, in the pile body 1 vibration embedded pile hole 5 with the anticorrosion preformed pile, pile body joint weld seam 11 connects, and does preservative treatment, and whole pile bottom surface reaches to stay after the projected depth and shakes 5-10 minute;

Step 6, it is closely knit that the slit 7 that makes between pile body 1, piling bar point 2 and the stake hole wall has been dialled in vibration sinking tube 10 vibrations;

Step 7 at the pile body 1 part coated anti-corrosion layer 9 that bassets, is done preservative treatment.

Described stake machine is a Submersed type stake machine 4.

The maximum outside diameter of the described piling bar head 2 of step 2 is identical with the vibration sinking tube external diameter.

Referring to Fig. 2～Figure 17, different with said method is that described step 2 is with the drill bit stake position of stake machine and the pore-forming that circles round; Described step 4 is that the lifting appliance of stake machine reliably is connected with the lifting protection chuck 6 of the pile body 1 of anticorrosion preformed pile; Described step 6 is a filling compact material 8 in the slit 7 between pile body 1, piling bar point 2 and the stake hole wall, carries out closely knit processing.

Described stake machine is a Clothoid type stake machine 13.

The described encapsulation process method of step 6 is that filler is closely knit, slip casting is closely knit or filler slip casting is closely knit.

Semicircle anchor ear 6.1 make-ups that described lifting protection chuck 6 is two two ends band handles form, and shank connects by split bolt 6.2, and the bottom of described circular anchor ear 6.1 has suspension ring and buckles 6.3.

Claims

1. the implanted anticorrosion preformed pile of using in the brining ground foundation, the pile body (1) that comprises precast concrete, it is characterized in that: the peripheral close anticorrosion cloth (3) that is tied with of described pile body (1), pile body is implanted end piling bar point (2) is installed, described piling bar point (2) is the soffit that taper that one group of gusset (2.1) is combined into is welded on base plate (2.2), plate upper surface is welded with snap ring (2.3), the internal diameter of described snap ring (2.3) equates with the external diameter of pile body (1), the pile body bottom snaps in the snap ring (2.3), and described anticorrosion cloth (3) is the synthetic geotextiles of anti-corrosion material.

2. the implanted anticorrosion preformed pile of using in the brining ground foundation according to claim 1 is characterized in that: the external surface of described pile body (1) and anticorrosion cloth (3) all is coated with anti-corrosion material.

3. the implanted anticorrosion preformed pile of using in the brining ground foundation according to claim 1 is characterized in that: the cross section of described pile body (1) and snap ring (2.3) is for circular or square.