CN203373737U - Multi-branch pile - Google Patents
Multi-branch pile Download PDFInfo
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- CN203373737U CN203373737U CN201320338139.8U CN201320338139U CN203373737U CN 203373737 U CN203373737 U CN 203373737U CN 201320338139 U CN201320338139 U CN 201320338139U CN 203373737 U CN203373737 U CN 203373737U
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- racemosus
- stake
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Abstract
The utility model relates to a multi-branch pile, which comprises a columnar main body and flake branch bodies, wherein the flake branch bodies are arranged on the periphery of the columnar main body, the length direction of a pile body is a segmental section or a unsegmented section, an upper pile body of a segmental section pile body is a reducing control bearing force segment, and a lower pile body is a multi-branch section.
Description
Technical field
The utility model belongs to technical field of buildings, is specifically related to a kind of racemosus stake.
Background technology
In railway, highway and other construction project process of construction, often all need to carry out the ground processing, the selection of stake type, job practices etc. directly determine bearing capacity and the cost of pile body.Bear the stake that vertically presses down load, by pile body side surface frictional resistance and end resistance, the top-out load is delivered to ground deep soil (rock) layer.Therefore, the vertical bearing capacity of pile body is closely related with the profile physical dimension of pile body, and in object of construction production, take that to bear vertical load be that main stake is in the majority.
By case history and designing and calculating, can be known, the side surface area of pile body is larger with the ratio of pile body volume, and the vertical bearing capacity that the stake side skin friction can provide is just higher, and the side surface area of pile body is directly related with the shape of cross section of pile body.For improving the vertical bearing capacity of stake, the pile body cross section can be made into to the racemosus shape, with cylinder and the radial racemosus blade-shaped of its circumference band pile body profile.Same cross-sectional area can increase the girth in cross section, just can increase the pile body side surface area, increases accordingly the bearing capacity of pile body.
On construction market, immediate technology is the profile of tooth preformed pile at present, and it is planted in stratum with piling machinery in plant produced, and cost compare is high.The frictional force of profile of tooth pile body and inter-pile soil body is less, and material of body of a pile can select kind few, and the parameters such as the diameter of stake, length can not adapt to the needs that ground is processed fully.
Compare with the conventional piles type, under the prerequisite of using identical constructional materials, increase the pile body side surface area, improve pile body side skin friction and vertical bearing capacity.In-site pouring, can be good at adapting to the long demand of various stakes.The material of pile body has more selection, can adapt to ground processing demands widely.Pile body can total length or part there is racemosus shape, top can straighten footpath regulation and control bearing capacity according to designing requirement
Existing approximation technique is prefabricated dentiform pile and common cylindrical castinplace pile.The major defect of such type has:
1 prefabricated dentiform pile is owing to being prefabricate, when the building site demand is arranged, need to pile body be transported to building-site by means of transportation reliably, therefore the overhanging size of profile of tooth of prefabricated dentiform pile is less, need to guarantee that toothed section has the convenient transportation of enough thickness, is unlikely to damage pile body in transportation.Common cylindrical castinplace pile lacks can increase the branch of pile body side surface area body, does not possess the ability that increases pile body side-friction force and vertical bearing capacity.The racemosus stake is the in-site pouring form, does not have transportation problem, and what therefore the overhanging size of branch body can be done is larger, can effectively increase the pile body side surface area, improves pile body side skin friction and vertical bearing capacity.
The pile body length dimension of 2 prefabricated dentiform piles is relatively fixing, although also can go out suitable size according to building site demand prefabricate, but such pile driving construction just needs pile extension, increased working procedure, reduced the reliability of stake, simultaneously in practice of construction, due to the difference of the soil property of ground, same building site also is difficult to accomplish that all pile lengths are consistent, and this will cause the part stake to block.The racemosus stake can well be controlled the length of pile body according to actual condition of construction, the work such as does not need to carry out pile extension, block.
3 prefabricated dentiform piles are the prefabrication moulding, arriving job site need to be transported for long-distance, pile body is in implanting the ground process, need to there is fixture clamping to plant stake or stake is planted in hammering, therefore pile body need to possess enough intensity guarantees and not there will be fracture in transportation and construction link, the selection of material of body of a pile just needs to guarantee the intensity of pile body, and the kind of Available Material is subject to great restriction.The racemosus stake of in-site pouring can be selected multiple material, comprises the curing compound etc. of concrete, pulverized limestone, flyash, rubble and other kind of various proportionings, can adapt to more ground processing requirements, possesses more extensive compliance and economy.
In 4 existing prefabricated dentiform pile pile body overall lengths, cross section is fixed, and the racemosus stake can change according to designing requirement the sectional dimension on pile body top, the regulation and control bearing capacity.
The utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to increase the pile body side surface area, improve pile body side skin friction and vertical bearing capacity, strengthen the bearing capacity of foundation soil body deep layer compactness and inter-pile soil body, discharge in advance settlement of foundation, complete immersed tube at building-site, the foundation soil body deep layer is closely knit, the perfusion pile is integrated, reduce construction link, the material of pile body has more selection, can adapt to ground processing demands widely, pile body can total length or part there is racemosus shape, top can straighten footpath regulation and control bearing capacity according to designing requirement.
In order to realize above-mentioned utility model purpose, the application has proposed following technical scheme:
A kind of racemosus stake, comprise columnar body and sheet branch body, sheet branch body be arranged on columnar body around, wherein, described pile body length direction is segmented or non-segmented negative, and segmented pile body top pile body is reducing regulation and control bearing capacity section, and the bottom pile body is the racemosus section.
Wherein, described pile body cross section major parameter comprises columnar body diameter of phi Da, sheet branch body length L, sheet branch body width B, sheet branch body quantity n, and described segmented pile body major parameter comprises reducer diameter of phi Db, pile body length H, reducer length h.
Wherein, columnar body diameter of phi Da span Φ 250～Φ is 600 millimeters; 150～450 millimeters of sheet branch body length L spans; 50～250 millimeters of sheet branch body width B spans; 3～12 of sheet branch body quantity n spans, wherein between sheet branch body, distribution angle is unrestricted; Pile body length H and reducer length h determine according to the ground designing requirement, 1000 millimeters of pile body reduced diameter portion reducer diameter of phi Db span Φ 400～Φ, and pile body can change the top sectional dimension, the regulation and control bearing capacity.
Wherein, racemosus stake material of body of a pile is selected from the curing compound of concrete, pulverized limestone, flyash, rubble or other kind.
Wherein, racemosus stake pile body, after perfusion, can insert reinforcing cage, improves the bulk strength of pile body, improves the pile body anti-shear ability.
A kind of application of racemosus stake, step is as follows:
Step 1 is produced and the pile-forming device that designs racemosus stake pile body consistent size, pile-forming device should comprise loose-leaf pile top or precast pile tip, pile-forming device inside is open-core type, adopt mode of vibration that ground is implanted in pile-forming device align piles position, reach the absolute altitude of design, form the cavity consistent with design racemosus stake pile body;
Step 2, to the inner perfusion of pile-forming device material of body of a pile, should guarantee that the upper surface of material of body of a pile is above the ground level;
Step 3 is extracted pile-forming device by mode of vibration, in the pile-forming device withdrawal process, supplements in time material of body of a pile, guarantees that the upper surface of material of body of a pile is above the ground level, until whole pile-forming device is extracted to ground;
Step 4 in time to the inner reinforcing cage that inserts of pile body, improves the pile body anti-shear ability according to designing requirement, completes the construction of a pile.
Beneficial effect
(1) in the situation that sectional area is identical, racemosus stake cross section has longer girth, thereby, while realizing that pile body length is the same, has larger side surface area, thereby increases side-friction force and the vertical bearing capacity of pile body.
(2) racemosus stake pile body in-site pouring, pile body length depends on that pile-forming device in work progress forms the degree of depth in a hole, so pile body length is unrestricted, the one-shot forming of pile body perfusion has simultaneously been avoided pile extension, has been cut the working procedure such as stake.
(3) racemosus stake pile body in-site pouring, can select suitable material of body of a pile according to local geological condition and designing requirement, and material of body of a pile is selected more extensive.
(4) racemosus stake pile body in-site pouring, pile body top can be carried out reducing according to demand, the bearing capacity of regulation and control pile body.
(5) racemosus stake pile body of the present utility model adopts the cross section pattern of columnar body and sheet branch body, when the type cross section equates at sectional area, can effectively increase section girth, thereby in the situation that pile body length is identical, be in the situation that the material of body of a pile consumption is constant, increase the pile body side surface area, improve pile body side-friction force and vertical bearing capacity.
(6) racemosus stake of the present utility model is that has poured into job site, and the length of pile body depends on the degree of depth in the formed stake of pile-forming device hole, therefore, in work progress, can make pile-forming device according to the pile body design length easily, completes the pile body that requires size.
(7) racemosus stake of the present utility model material of body of a pile used is more extensive, is not subject to the restriction of the load of pile body transportation and pile sinking, only need to meet the service load requirement of pile body, and the while does not need to carry out the connection of pile body multistage.At present the various materials of pile foundation construction comprise the curing compound etc. of concrete, pulverized limestone, flyash, rubble and other kind of various proportionings, can be as the material of body of a pile of racemosus stake.
(8) but racemosus shape pile body total length of the present utility model or part adopt racemosus shape, its top can straighten footpath according to the force request characteristic, regulates and controls bearing capacity, gives full play to the flexibility of racemosus stake perfusion pile.
The accompanying drawing explanation
The branched stake of Fig. 1 schematic cross-section;
The side schematic view of the branched stake of Fig. 2.
The specific embodiment
The closely knit racemosus stake of a kind of deep layer, comprise columnar body and sheet branch body, sheet branch body be arranged on columnar body around, wherein, described pile body length direction is segmented or non-segmented negative, and segmented pile body top pile body is reducing regulation and control bearing capacity section, and the bottom pile body is the racemosus section.
Wherein, described pile body cross section major parameter comprises columnar body diameter of phi Da, sheet branch body length L, sheet branch body width B, sheet branch body quantity n, and described segmented pile body major parameter comprises reducer diameter of phi Db, pile body length H, reducer length h.
Wherein, columnar body diameter of phi Da span Φ 250～Φ is 600 millimeters; 150～450 millimeters of sheet branch body length L spans; 50～250 millimeters of sheet branch body width B spans; 3～12 of sheet branch body quantity n spans, wherein between sheet branch body, distribution angle is unrestricted; Pile body length H and reducer length h determine according to the ground designing requirement, 1000 millimeters of pile body reduced diameter portion reducer diameter of phi Db span Φ 400～Φ, and pile body can change the top sectional dimension, the regulation and control bearing capacity.
Wherein, racemosus stake material of body of a pile is selected from the curing compound of concrete, pulverized limestone, flyash, rubble or other kind.
Wherein, racemosus stake pile body, after perfusion, can insert reinforcing cage, improves the bulk strength of pile body, improves the pile body anti-shear ability.
A kind of application of racemosus stake, step is as follows:
Step 1 is produced and the pile-forming device that designs racemosus stake pile body consistent size, pile-forming device should comprise loose-leaf pile top or precast pile tip, pile-forming device inside is open-core type, adopt mode of vibration that ground is implanted in pile-forming device align piles position, reach the absolute altitude of design, form the cavity consistent with design racemosus stake pile body;
Step 2, to the inner perfusion of pile-forming device material of body of a pile, should guarantee that the upper surface of material of body of a pile is above the ground level;
Step 3 is extracted pile-forming device by mode of vibration, in the pile-forming device withdrawal process, supplements in time material of body of a pile, guarantees that the upper surface of material of body of a pile is above the ground level, until whole pile-forming device is extracted to ground;
Step 4 in time to the inner reinforcing cage that inserts of pile body, improves the pile body anti-shear ability according to designing requirement, completes the construction of a pile.
Finally it should be noted that: obviously, above-described embodiment is only for the utility model example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.
Claims (3)
1. a racemosus stake is characterized in that: comprise columnar body and sheet branch body, sheet branch body be arranged on columnar body around, wherein, described pile body length direction is segmented or non-segmented negative, and segmented pile body top pile body is reducing regulation and control bearing capacity section, and the bottom pile body is the racemosus section.
2. racemosus stake according to claim 1, it is characterized in that: described pile body cross section major parameter comprises columnar body diameter of phi Da, sheet branch body length L, sheet branch body width B, sheet branch body quantity n, described segmented pile body major parameter comprises reducer diameter of phi Db, pile body length H, reducer length h, wherein, columnar body diameter of phi Da span Φ 250～Φ is 600 millimeters; 150～450 millimeters of sheet branch body length L spans; 50～250 millimeters of sheet branch body width B spans; 3～12 of sheet branch body quantity n spans, wherein between sheet branch body, distribution angle is unrestricted; Pile body length H and reducer length h determine according to the ground designing requirement, 1000 millimeters of pile body reduced diameter portion reducer diameter of phi Db span Φ 400～Φ, and pile body can change the top sectional dimension, the regulation and control bearing capacity.
3. racemosus stake according to claim 2 is characterized in that: racemosus stake pile body, after perfusion, inserts reinforcing cage, improves the bulk strength of pile body, improves the pile body anti-shear ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338139.8U CN203373737U (en) | 2013-06-09 | 2013-06-09 | Multi-branch pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338139.8U CN203373737U (en) | 2013-06-09 | 2013-06-09 | Multi-branch pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203373737U true CN203373737U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320338139.8U Expired - Fee Related CN203373737U (en) | 2013-06-09 | 2013-06-09 | Multi-branch pile |
Country Status (1)
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| CN (1) | CN203373737U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266601A (en) * | 2013-06-09 | 2013-08-28 | 中铁科工集团有限公司 | Deep-layer dense multi-branch pile and application thereof |
| CN113513017A (en) * | 2021-05-14 | 2021-10-19 | 张掖市陇原地基基础工程有限公司 | Eight-tooth-shaped carrier pile and construction method thereof |
-
2013
- 2013-06-09 CN CN201320338139.8U patent/CN203373737U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266601A (en) * | 2013-06-09 | 2013-08-28 | 中铁科工集团有限公司 | Deep-layer dense multi-branch pile and application thereof |
| CN103266601B (en) * | 2013-06-09 | 2015-05-06 | 中铁科工集团有限公司 | Deep-layer dense multi-branch pile and application thereof |
| CN113513017A (en) * | 2021-05-14 | 2021-10-19 | 张掖市陇原地基基础工程有限公司 | Eight-tooth-shaped carrier pile and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY ENGINEERING MACHINERY RESEARCH + DES Free format text: FORMER OWNER: CHINA RAILWAY SCIENCE + INDUSTRY GROUP CO., LTD. Effective date: 20150422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430066 WUHAN, HUBEI PROVINCE TO: 430077 WUHAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150422 Address after: 430077 Hongshan, Wuhan, Xu Xu East Street, No. 55 Patentee after: China's Railroad Engineering Machine Research Design Institute Co., Ltd. Patentee after: China Railway Science & Industry Rail Transit Equipment Co., Ltd. Address before: 430066, 45 East Main Street, Hongshan District, Hubei, Wuhan Patentee before: China Railway Science & Industry Group Co., Ltd. Patentee before: China Railway Science & Industry Rail Transit Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160609 |