CN102747724B - A kind of piling method of back-up sand composite pile - Google Patents
A kind of piling method of back-up sand composite pile Download PDFInfo
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- CN102747724B CN102747724B CN201110097619.5A CN201110097619A CN102747724B CN 102747724 B CN102747724 B CN 102747724B CN 201110097619 A CN201110097619 A CN 201110097619A CN 102747724 B CN102747724 B CN 102747724B
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- 239000004576 sand Substances 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002689 soil Substances 0.000 claims abstract description 39
- 238000005266 casting Methods 0.000 claims description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000010410 layer Substances 0.000 claims description 21
- 239000004567 concrete Substances 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 238000007711 solidification Methods 0.000 abstract description 8
- 230000008023 solidification Effects 0.000 abstract description 8
- 239000011148 porous material Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000004080 punching Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 241000826860 Trapezium Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000009610 hypersensitivity Effects 0.000 description 1
- 230000003601 intercostal effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of back-up sand composite pile, pile making device and piling method thereof, its object is to provide a kind of composite tube stake that back-up sand is solidified outside cylinder stake stake week, pile making device and piling method thereof.This back-up sand composite pile, comprises the pile body implanting soil layer, has back-up sand cured layer outside described pile body stake week.The invention has the beneficial effects as follows: in the ground having deep soft soil, back-up sand outside cylinder stake stake week, can improve soil around pile earth, quick release pore water pressure, promotes weak soil solidification, thus significantly improves bearing capacity of single pile, and save cost, the foundation engineering of deep soft soil can be widely used in.
Description
Technical field
The present invention relates to a kind of pile body and pile making device, piling method, particularly relate to a kind of in construction work based on back-up sand composite pile, pile making device and piling method thereof.
Background technology
Multilayer, small sized multiple story building in the soft foundation that China coast city blazons, its basic expense remains high always, and the effect that all kinds of foundation pattern uses is irregular very large again.Weak soil in these soft foundations is that stream is moulded, half-flow plastic shape or plastic shape, and high-compressibility, adds bad hydraulic permeability, and belong to hypersensitivity soil, once disturbance, mechanical property reduces sharply, and the restore cycle is very long.In the design of multilayer on this kind of ground, small sized multiple story building, using maximum is the stake of prestressed concrete cylinder, fast, pollution-free, the economic cost performance of this constant product quality, speed of application is good, but having in deep soft soil, because bearing capacity of single pile is on the low side, lay out pile overstocked, often cause pile shaft floating up, off normal and phenomenon of rupture.
Chinese patent notification number CN2673944Y, disclose a kind of major part back-up sand pile for prestressed pipe, it includes the tubulose pile body of prestressed reinforced concrete, at pipe pile end, have the stake major part of steel concrete prefabricated separately or concrete or steel, stake diameter at butt end is greater than tubular pile body diameter 8-40cm; At tubular pile body, every 1-7m, the wide 5-25cm having to protrude, the concrete of high 5-20cm or steel concrete rib, two intercostal back-up sand or grit, the cross section of rib is trapezoidal, isosceles trapezoid or right-angled trapezium.This major part back-up sand pile for prestressed pipe is prefabricated component, not only will increase manpower and materials and be transported to construction plant, and the construction cost of being driven underground is higher.
Chinese patent notification number CN2712587Y, disclose a kind of Bamboo-shaped pile for prestressed pipe punching block, it includes the main body punching block that two block length strip semicircle securing members are tightened, main body punching block is at interval of 1-4m, a sliver transvers section is had to be the annular recess of right-angled trapezium or nearly right-angled trapezium or isosceles trapezoid, the long 5-40cm of groove cross section four edges, part or all establish R angle in annular recess and main body punching block junction surface and annular recess two corner angle.This Bamboo-shaped pile for prestressed pipe punching block is the mould as prefabricated Bamboo-shaped pile for prestressed pipe, is only suitable for prefabricated component, can not as the purposes of poured in place concrete, and its cost of manufacture is higher.
Summary of the invention
The object of the present invention is to provide a kind of cast-in-situ concrete composite tube stake of back-up sand solidification outside cylinder stake stake week, to solve the problem that the bearing capacity of single stake in deep soft soil ground existed in background technology is on the low side and employing prefabricated component construction cost is higher.
To achieve these goals, technical scheme of the present invention is: a kind of back-up sand composite pile, comprise the pile body implanting soil layer, outside described pile body stake week, there is back-up sand cured layer, the cured layer be connected as a single entity with pile body that described back-up sand cured layer is formed for making weak soil solidify after back-up sand outside pile body stake week.In the ground having deep soft soil, back-up sand outside pile body stake week, can improve soil around pile earth, discharge pore water pressure fast, promotes weak soil solidification, thus significantly improves bearing capacity of single pile.
As preferably, described pile body is the stake of cast-in-situ concrete large-diameter thin-wall cylinder.Pile body adopts cylinder stake to save material, cost-saving.
The beneficial effect of back-up sand composite pile of the present invention is: in the ground having deep soft soil, and back-up sand outside cylinder stake stake week, can improve soil around pile earth, discharge pore water pressure fast, promotes weak soil solidification, thus significantly improves bearing capacity of single pile, and saved cost.
The present invention also aims to provide a kind of pile making device for the manufacture of above-mentioned back-up sand composite pile.
To achieve these goals, technical scheme of the present invention is: a kind of pile making device, comprises clad steel casing and pile top, and on the outer cylinder of the outer casing of described clad steel casing, cover has several for the casting ring of casting.When this pile making device is squeezed into soil layer, casting ring on outer casing can arrange the earth in stake week, form the cavity of certain distance, at this moment back-up sand in the cavities, can improve soil around pile earth, discharge pore water pressure fast, promote weak soil solidification, thus significantly improve the bearing capacity of the pile body of formation, owing to being poured in place concrete, reduce construction cost.
As preferably, described casting ring in the form of a ring, be placed on the outer cylinder of clad steel casing, the external diameter of the internal diameter of described casting ring and the outer casing of clad steel casing is adaptive, be connected with the silk rope that can need to regulate according to site operation length between adjacent described casting ring, between the casting ring that described pile top is adjacent, be also connected with silk rope.When pulling up pile making device, this casting ring comes off together with pile top, and form with the concrete poured into the pile body connected as one, casting ring also can in needing to be designed to other shapes being conducive to pile according to actual field construction, the rectangular triangle of section as casting ring or circle etc., and also can be made the bascule of similar turnover panel, when squeezing into pile making device, turnover panel is in open mode, facilitate casting, when pulling up pile making device, turnover panel is in closure state, fit in casing surface, can not earth be mentioned.
As preferably, described pile top is enlarged footing pile top.Pile top is enlarged footing pile top, and namely the outside diameter of pile top is greater than the external diameter of the outer casing of clad steel casing, and such pile top also can arrange earth, has the effect of casting ring.
As preferably, described pile top is profile of tooth pile top.Pile top is profile of tooth pile top, and such pile top also can arrange earth, has the effect of casting ring, and the teeth of this pile top can be designed to several, and its shape can be designed to triangle or the various shape such as square.
The beneficial effect of pile making device of the present invention is: when this pile making device is squeezed into soil layer, casting ring on outer casing can arrange the earth in stake week, form the cavity of certain distance, at this moment back-up sand in the cavities, soil around pile earth can be improved, discharge pore water pressure fast, promote weak soil solidification, thus significantly improve the bearing capacity of the pile body of formation, and its construction cost is lower.
The present invention also aims to provide a kind of piling method manufacturing above-mentioned back-up sand composite pile.
To achieve these goals, technical scheme of the present invention is: a kind of piling method, comprises the following steps:
1. mix pile top in the bottom of pile making device, by the casting ring set of serial connection on the outer casing of pile making device, and casting ring is lifted on the cylinder top of outer casing, then utilizes clamper to be fixedly connected with vibrating hammer at the top of pile making device;
2. pile making device is erect and is placed in construction location and exerts pressure on vibrating hammer, pile making device is sunk in soil, and back-up sand in the cavity that arranges of the pile making device stake whole body, the press-in pile making device limit back-up sand of vibration limit, back;
3. when cavity be contracted to gradually affect back-up sand time, the next one that then falls is lifted on the casting ring on outer casing cylinder top, then adjust the length of the silk rope between pile top and this casting ring, make pile top draw this casting ring, continue the press-in pile making device limit back-up sand of vibration limit, limit afterwards;
4. repeat the 3. to walk, until pile making device to be sunk to the soil layer of projected depth;
5. unclamp the clamper at clad steel casing top, remove vibrating hammer, in interlayer, put into reinforcing cage, fall vibrating hammer and again clamp clad steel casing; If form concrete back-up sand composite tube stake not with reinforcing cage, then skip the and 5. walk and directly carry out the and 6. walk;
6. to inoculated part concrete between double-layer pipe interlayer, the vibration of perfusion limit, back on pull out pile making device, pile top and casting ring come off and form with concrete the pile body connected as one.
If the soil property of job site is better moulding, the cavity of formation can't reduce gradually thus affect back-up sand, then do not need to fall casting ring.Can, in advance at the pre-buried one section of sleeve of construction location, after described pile making device is squeezed in sleeve, make back-up sand convenient in addition.
The beneficial effect of piling method of the present invention is: when this pile making device is squeezed into soil layer, casting ring on outer casing can arrange the earth in stake week, form the cavity of certain distance, at this moment back-up sand in the cavities, soil around pile earth can be improved, discharge pore water pressure fast, promote weak soil solidification, thus significantly improve the bearing capacity of the pile body of formation, and its construction cost is lower.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of back-up sand composite pile;
Fig. 2 is a kind of structural representation of pile making device in embodiment 1;
Fig. 3 is the elevation of Fig. 2;
Fig. 4 is a kind of structural representation of pile top;
Fig. 5 is the sectional view of pile top.
Number in the figure is respectively: 1. pile body 2. back-up sand cured layer 3. clad steel casing 4. pile top 5. casting ring 6. ropes.
Detailed description of the invention
Also by reference to the accompanying drawings technical scheme of the present invention is further described specifically below by embodiment.
Embodiment 1:
As shown in Figure 1, a kind of back-up sand composite pile, comprise the pile body 1 implanting soil layer, described pile body 1 is the stake of cast-in-situ concrete large-diameter thin-wall cylinder, has back-up sand cured layer 2 outside the stake week of pile body 1, so-called back-up sand cured layer 2 refers in the ground having deep soft soil, back-up sand outside the stake week of pile body 1, can improve soil around pile earth like this, discharge pore water pressure fast, promote the weak soil solidification of stake week, thus significantly improve bearing capacity of single pile.
As shown in Figures 2 and 3, a kind of pile making device for the manufacture of above-mentioned back-up sand composite pile, comprise the vertical clad steel casing 3 arranged with one heart, pile top 4 is provided with in the bottom of clad steel casing 3, as shown in Figure 4 and Figure 5, pile top 4 is for expanding hair style, namely the outside diameter of pile top 4 is greater than the diameter of the outer casing of clad steel casing 3, its for bottom be pointed ring bodies, its end face has the annular boss that can embed between two casing, on the outer cylinder of the outer casing of clad steel casing 3, cover has casting ring 5, this casting ring 5 in the form of a ring, the rectangular triangle of its section, and wedge angle upward, adaptive on the outer cylinder being enclosed within clad steel casing 3, this casting ring 5 has three, connect with silk rope 6 between adjacent casting ring 5, and also connect with silk rope 6 between the casting ring 5 that is adjacent of pile top 4, this rope 6 can need to regulate length according to site operation.
Adopt above-mentioned pile making device to manufacture a piling method for back-up sand composite pile, comprise the following steps:
1. mix pile top 4 in the bottom of pile making device, the casting ring 5 of serial connection is enclosed within the outer casing of pile making device, and casting ring 5 is lifted on the cylinder top of outer casing, then utilize clamper to be fixedly connected with vibrating hammer at the top of pile making device;
2. pile making device is erect and is placed in construction location and exerts pressure on vibrating hammer, pile making device is sunk in soil, and back-up sand in the cavity that arranges of the pile making device stake whole body, the press-in pile making device limit back-up sand of vibration limit, back;
3. when cavity be contracted to gradually affect back-up sand time, the next one that then falls is lifted on the casting ring 5 on outer casing cylinder top, then the length of the silk rope 6 between pile top 4 and this casting ring 5 is adjusted, make pile top 4 draw this casting ring 5 by silk rope 6 to sink, continue the press-in pile making device limit back-up sand of vibration limit, limit afterwards;
4. repeat the 3. to walk, until pile making device to be sunk to the soil layer of projected depth;
5. then unclamp the clamper at clad steel casing 3 top, remove vibrating hammer, in interlayer, put into reinforcing cage, fall vibrating hammer and again clamp clad steel casing 3; If form concrete back-up sand composite pile not with reinforcing cage, then skip the and 5. walk and directly carry out the and 6. walk;
6. to inoculated part concrete between clad steel casing 3 interlayer, the vibration of perfusion limit, back on pull out pile making device, pile top 4 and casting ring 5 come off and are formed with concrete and connect as one and have the pile body 1 of back-up sand cured layer 2 outside stake week.
Embodiment 2:
A kind of pile making device, the difference of the pile making device in itself and embodiment 1 is: pile top 4 is not enlarged footing pile top, but profile of tooth pile top, its structure extends several teeth in annular solid periphery, and this kind of pile top 4 is open in Chinese patent Authorization Notice No. CN201347550Y.
Above-mentioned described specific embodiment is only do preferable examples explanation to design of the present invention.All any amendments done within the spirit and principles in the present invention are supplementary or equivalent to be substituted, within the protection domain that all should be included in the claims in the present invention.
Claims (1)
1. a piling method for back-up sand composite pile, comprises back-up sand composite pile and the pile making device for the manufacture of back-up sand composite pile,
Described back-up sand composite pile comprises the pile body (1) implanting soil layer, there is outside described pile body stake week back-up sand cured layer (2), the cured layer be connected as a single entity with pile body (1) that described back-up sand cured layer (2) is formed for making weak soil solidify after back-up sand outside pile body (1) stake week, described pile body (1) is the stake of cast-in-situ concrete large-diameter thin-wall cylinder;
Described pile making device comprises clad steel casing (3) and pile top (4), it is characterized in that: on the outer cylinder of the outer casing of described clad steel casing (3), cover has several for the casting ring (5) of casting, described casting ring (5) in the form of a ring, be placed on the outer cylinder of clad steel casing (3), the external diameter of the internal diameter of described casting ring (5) and the outer casing of clad steel casing (3) is adaptive, the silk rope (6) that can need to regulate according to site operation length is connected with between described adjacent casting ring (5), also silk rope (6) is connected with between the casting ring (5) that described pile top (4) is adjacent, described pile top (4) is enlarged footing pile top,
It is characterized in that, comprise the following steps:
1. pile top (4) is mixed in the bottom of pile making device, the casting ring (5) of serial connection is enclosed within the outer casing of pile making device, and casting ring (5) is lifted on the cylinder top of outer casing, then utilize clamper to be fixedly connected with vibrating hammer at the top of pile making device;
2. pile making device is erect and is placed in construction location and exerts pressure on vibrating hammer, pile making device is sunk in soil, and back-up sand in the cavity that arranges of the pile making device stake whole body, the press-in pile making device limit back-up sand of vibration limit, back;
3. when cavity be contracted to gradually affect back-up sand time, the next one that then falls is lifted on the casting ring (5) on outer casing cylinder top, then the length of the silk rope (6) between pile top (4) and this casting ring (5) is adjusted, make pile top (4) draw this casting ring (5) by silk rope (6), continue the press-in pile making device limit back-up sand of vibration limit, limit afterwards;
4. repeat the 3. to walk, until pile making device to be sunk to the soil layer of projected depth;
5. then unclamp the clamper at clad steel casing (3) top, remove vibrating hammer, in interlayer, put into reinforcing cage, fall vibrating hammer and again clamp clad steel casing (3); If form concrete back-up sand composite pile not with reinforcing cage, then skip the and 5. walk and directly carry out the and 6. walk;
6. to inoculated part concrete between clad steel casing (3) interlayer, the vibration of perfusion limit, back on pull out pile making device, pile top (4) and casting ring (5) come off and are formed with concrete and connect as one and have the pile body (1) of back-up sand cured layer (2) outside stake week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097619.5A CN102747724B (en) | 2011-04-19 | 2011-04-19 | A kind of piling method of back-up sand composite pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110097619.5A CN102747724B (en) | 2011-04-19 | 2011-04-19 | A kind of piling method of back-up sand composite pile |
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| CN102747724A CN102747724A (en) | 2012-10-24 |
| CN102747724B true CN102747724B (en) | 2015-12-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103061353B (en) * | 2013-01-05 | 2015-01-07 | 台山市宁华电力设计有限公司 | Windproof reinforced concrete rod sleeve base |
| CN106958242A (en) * | 2017-04-01 | 2017-07-18 | 浙江龙翔建设有限公司 | Steel pile casting is installed and method for dismounting |
| CN108277800B (en) * | 2018-01-12 | 2023-10-24 | 潘海涛 | Reinforced concrete pipe joint gravel pile with consolidated sand layer and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2557590Y (en) * | 2002-06-05 | 2003-06-25 | 邹宗煊 | Prefabricated piling pile with bigger top for building foundation |
| CN2673944Y (en) * | 2003-08-19 | 2005-01-26 | 邹宗煊 | Prestressed pipe pile with large end filled with sand |
| CN201347550Y (en) * | 2008-10-31 | 2009-11-18 | 陈建雄 | Tooth-shaped pile tip of large diameter cast-in-situ concrete thin wall tooth-shaped barrel pile |
| CN101684650A (en) * | 2008-09-27 | 2010-03-31 | 陈东曙 | Cast-in-place concrete thin-walled tooth-shaped tubular pile with large diameter, pile forming device and method for forming pile |
| CN201506969U (en) * | 2009-08-26 | 2010-06-16 | 浙江海桐高新工程技术有限公司 | Large-diameter dyke tubular pile and dyke or wharf structure thereof |
| CN101994303A (en) * | 2009-08-26 | 2011-03-30 | 浙江海桐高新工程技术有限公司 | Large diameter grain tubular pile embanking construction process and embanking or wharf structure thereof |
| CN202039355U (en) * | 2011-04-19 | 2011-11-16 | 陈东曙 | Sand filling composite pile and pile forming device thereof |
-
2011
- 2011-04-19 CN CN201110097619.5A patent/CN102747724B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2557590Y (en) * | 2002-06-05 | 2003-06-25 | 邹宗煊 | Prefabricated piling pile with bigger top for building foundation |
| CN2673944Y (en) * | 2003-08-19 | 2005-01-26 | 邹宗煊 | Prestressed pipe pile with large end filled with sand |
| CN101684650A (en) * | 2008-09-27 | 2010-03-31 | 陈东曙 | Cast-in-place concrete thin-walled tooth-shaped tubular pile with large diameter, pile forming device and method for forming pile |
| CN201347550Y (en) * | 2008-10-31 | 2009-11-18 | 陈建雄 | Tooth-shaped pile tip of large diameter cast-in-situ concrete thin wall tooth-shaped barrel pile |
| CN201506969U (en) * | 2009-08-26 | 2010-06-16 | 浙江海桐高新工程技术有限公司 | Large-diameter dyke tubular pile and dyke or wharf structure thereof |
| CN101994303A (en) * | 2009-08-26 | 2011-03-30 | 浙江海桐高新工程技术有限公司 | Large diameter grain tubular pile embanking construction process and embanking or wharf structure thereof |
| CN202039355U (en) * | 2011-04-19 | 2011-11-16 | 陈东曙 | Sand filling composite pile and pile forming device thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《扩大头带肋填砂预应力管桩的研究与应用》;金国平等;《建筑结构》;20060630;第36卷;第57-61页 * |
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| CN102747724A (en) | 2012-10-24 |
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Inventor after: Zhang Xinying Inventor after: Jin Ling Inventor before: Chen Dongshu |
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Effective date of registration: 20180606 Address after: 221000 Room 202, A6 office building, Xuzhou Road North Pioneer Park, Xuzhou Industrial Park, Jiawang, Xuzhou, Jiangsu. Patentee after: Jiangsu Wanatchee electromechanical equipment Engineering Co. Address before: 301800 30-1-1106, Baodi, Tianjin Co-patentee before: Jin Ling Patentee before: Zhang Xinying |
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Granted publication date: 20151202 Termination date: 20180419 |