CN2608557Y - High pressure rotary spraying core inserting bottom expanding pile - Google Patents
High pressure rotary spraying core inserting bottom expanding pile Download PDFInfo
- Publication number
- CN2608557Y CN2608557Y CN 03245360 CN03245360U CN2608557Y CN 2608557 Y CN2608557 Y CN 2608557Y CN 03245360 CN03245360 CN 03245360 CN 03245360 U CN03245360 U CN 03245360U CN 2608557 Y CN2608557 Y CN 2608557Y
- Authority
- CN
- China
- Prior art keywords
- pile
- stake
- core
- pile body
- pressure rotary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model is a high pressure jet grouting pedestal pile with a core, which comprises a core pile, a pile body and a pile base. The core pile is with the shape of a column type or a reversed cone platform. The core pile can be a reinforced concrete precast pile, a cast-in-place pile, a steel pile or other pile with the section of square, round, H-type, and ring type. The core pile is covered by the pile body and the pile base is positioned at the lower end of the core pile. The diameter of the pile base is larger than that of the core pile. The section of the pile body is of round, semicircle or sector shape. A plurality of auxiliary core piles are arranged around the core pile. The core pile is of solid or hollow barrel type. A plurality of piles with changeable diameters are mounted on the pile body with a certain distance between and the diameter of the piles with changeable diameter is larger than that of the pile body. The utility model is of reasonable design, simple structure and high friction resistance, which can be inserted into reinforced concrete sinking pile, cast pile, precastd pile and structured pile. The device is of wide application scope, which can be used in pile foundations of buildings, structures and equipments for construction, bridge, city planning and irrigation works as well as reinforcing the pile foundation of the anti-seepage and flood resistant slope pit and up-lift resistance pile.
Description
Technical field
The utility model relates to the stake of various basic loads such as a kind of construction work, bridge engineering, municipal engineering, hydraulic engineering, relates in particular to a kind of high-pressure rotary-spray lock pin expanded bore pile.
Background technology
At present, be used in the structure types of the various basic pile foundations of engineering such as construction work, bridge engineering, municipal engineering, hydraulic engineering stake of single structure type and the stake of combining structure type being arranged.The single structure stake has tube-sinking cast-in-situ pile, bored pile, precast square pile, pile tube, agitation pile, CFG stake etc.; The stake of combining structure type has compaction pile, Concrete Core Mixing Pile, 3M stake etc.The above-mentioned stake type part that comes with some shortcomings respectively or jointly.For example, the ratio of performance to price of single structure type stake is low, and especially the defective of the tube-sinking cast-in-situ pile in the stake of single structure type, bored pile, precast square pile, pile tube, agitation pile, CFG stake existence is mud contamination and noise problem.The vibration that compaction pile in the stake of combining structure type produces in manufacturing process particularly disturbs residents, and in addition, it rams the degree of depth that expands not only limitation, and it can only improve the end load.Concrete Core Mixing Pile because of stirred, the influence of factors such as pressure and equipment limitation, it stirs degree of depth, a stake footpath size all has limitation, the top weak soil is stirred the back improve lessly, and can only improve the part side friction, so bearing capacity is higher than not with price.
The utility model content
Main purpose of the present utility model is intended to solve the problem in the above-mentioned pile foundation, and a kind of high-pressure rotary-spray lock pin expanded bore pile that can give full play to deep cement earth pile face side resistance and stake end bottom resistance is provided.
The technical scheme that its technical problem that solves the utility model adopts is:
By the core stake, pile body and stake bottom are formed, and the core stake is cylindricality or inversed taper platform shape, and precast reinforced concrete piles is adopted in the core stake, present walling pile, and steel structure pile and other stakes, the cross section is square, circle and H shape.Along core stake surface opposing parallel pile body is set, the stake of pile body parcel core, the bottom of core stake is the stake bottom, and the diameter of stake bottom is greater than the core stake, and the pile body cross section is circular, semicircle and fan-shaped.
The core stake can be adopted precast reinforced concrete piles, the structure stake with higher-strength and load-carrying ability that present walling pile, steel work and other any forms, any material constitute.Pile body increases the superficial area of pile body itself and native frictional resistance, improves the collateral resistance of stake.The diameter that enlarges the stake bottom can improve the side friction of stake, can improve end bearing capacity, uplift resistance and anti-horizontal thrust simultaneously.
Around the core stake some auxiliary wick stakes are set around the core stake.
The side frictional resistance of auxiliary wick stake with raising core stake and pile body is set around the core stake, and then increases the intensity of pile body, improve load.
The core stake is solid tubbiness or hollow barrel.
The weight that the core stake of hollow barrel alleviates, but do not reduce side friction and load power.
At interval the reducing pile body is set on the pile body, the diameter of reducing pile body is greater than pile body.
The pile body of reducing can increase pile body and native superficial area at interval, improves side friction.
At interval the diameter of reducing pile body is greater than the diameter of pile body, and the degree of depth that former ground or dykes and dams substance are handled can reach more than the 50m, and a stake footpath maximum can reach more than the 1.8m, mixes the ash amount and also is higher than existing agitation pile.
The middle part of core stake is provided with pile body with lower edge core stake surface opposing parallel, the stake of pile body parcel core.
When the following soil layer of soft foundation (particularly the top layer is the soft foundation of mud and silt clay) is carried out the pile foundation processing, only the better soil property of lower floor is carried out high-pressure rotary-spray and handle, can improve bearing capacity of single pile to greatest extent.Intersect along pile body the pile body side of the side stake of adjacent parcel core with several of the pile body of parcel core stake, becomes an integral body.Pile body and pile body intersect formation one integral body, the pile foundation that improves the load of pile foundation and reinforce flood fighting antiseepage dykes and dams hole and uplift pile.
During use, adopt earlier the high-pressure rotary jet grouting pile machine to hole, make the degree of depth of boring reach the pile body projected depth after, carry brill while rotate, the high-pressure rotary-spray by the high-pressure rotary jet grouting pile machine injects cement paste, makes bottom pile body and the stake.When high-pressure rotary-spray arrives design height, stop slip casting and extract drilling rod, with pipeline sinking pile machine or Static pressure pile driver or auger insertion one or several core stake.
During use, adopt earlier the high-pressure rotary jet grouting pile machine to hole, make the degree of depth of boring reach the pile body projected depth after, carry brill while rotate, the high-pressure rotary-spray by the high-pressure rotary jet grouting pile machine injects cement paste, makes bottom pile body and the stake.Regulate the high-pressure rotary-spray pressure of high-pressure rotary jet grouting pile machine and on pile body, make the reducing pile body at interval, when high-pressure rotary-spray arrives design height, stop slip casting and extract drilling rod, with pipeline sinking pile machine or Static pressure pile driver or auger insertion one or several core stake.
The utility model is a high-pressure rotary-spray lock pin expanded bore pile.Reasonable in design, compact conformation, the frictional resistance height, the better soil layer in bottom is carried out high-pressure rotary-spray to be expanded after the end, can insert the structure that constitutes with rotary churning pile concentric one or the stake of several bars concrete pipe sinking, castinplace pile, preformed pile, structure stake or other any forms, any material as core, improve the intensity of pile body with this high-intensity core with higher-strength and load-carrying ability.Vertical bearing capacity of single pile and resistance to plucking, anti-horizontal thrust have been improved; Bearing capacity of single pile is higher than existing stake type with the price ratio; Because high-pressure rotary-spray lock pin expanded bore pile reduces soil body resistance, realizes the static pressed pile core easily, can also reduce cost; Adopt multicore structure, be applied to the timber pile footpath, the high-bearing capacity stake can further reduce cost; For the stake design of playing soft sleeper more deeply, can pass hard formation, handle soft sleeper by high-pressure rotary-spray and reduce pile body length; Can realize that the stake of static pressure lock pin reaches noiselessness, friction, no mud emission; The bearing capacity of stake is reliable, and discreteness is little; It is faster to construct.Applied range can be widely used in the pile foundation of building foundation, structure, Equipment Foundations and the soft foundation of construction work, bridge engineering, municipal engineering, hydraulic engineering etc., and the pile foundation of reinforcing flood fighting antiseepage dykes and dams hole and uplift pile.The utility model is applied to meet after testing in the actual engineering People's Republic of China's industry standard " technical code for building pile foundation " JGJ94-94 and " building lot treatment technology standard " JGJ79-91.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
The schematic diagram of Fig. 1 high-pressure rotary-spray lock pin expanded bore pile
The schematic diagram of Fig. 2 high-pressure rotary-spray lock pin expanded bore pile
The schematic diagram of Fig. 3 high-pressure rotary-spray lock pin expanded bore pile
The schematic diagram of Fig. 4 high-pressure rotary-spray lock pin expanded bore pile
The schematic diagram of Fig. 5 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Fig. 6 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Fig. 7 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Fig. 8 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Fig. 9 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Figure 10 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Figure 11 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Figure 12 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Figure 13 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Figure 14 high-pressure rotary-spray lock pin expanded bore pile
The schematic diagram of Figure 15 high-pressure rotary-spray lock pin expanded bore pile
The schematic cross-section of Figure 16 high-pressure rotary-spray lock pin expanded bore pile
1 core stake, 2 pile bodies, 3 bottoms, 4 auxiliary wick stakes, 5 reducing pile bodies
The specific embodiment
By core stake (1), pile body (2) and the stake end (3) are formed, and core stake (1) is a cylindricality, and precast reinforced concrete piles is adopted in core stake (1), and the cross section is square.Along the surperficial opposing parallel of core stake (1) pile body (2) is set, the core stake (1) of pile body (2) parcel, the bottom of core stake (1) is stake bottom (3), the diameter of stake bottom (3) is greater than core stake (1), pile body (2) cross section is circular, as Fig. 1, Fig. 2, Fig. 6, Fig. 7, Fig. 8, Figure 11, Figure 12, shown in Figure 13.
By core stake (1), pile body (2) and the stake end (3) are formed, and core stake (1) is a cylindricality, and present walling pile is adopted in core stake (1), and the cross section is circular.Along the surperficial opposing parallel of core stake (1) pile body (2) is set, the core stake (1) of pile body (2) parcel, the bottom of core stake (1) is stake bottom (3), the diameter of stake bottom (3) is greater than core stake (1), pile body (2) cross section is fan-shaped, as Fig. 1, Fig. 2, Fig. 9, Figure 11, shown in Figure 14.
By core stake (1), pile body (2) and the stake end (3) are formed, and core stake (1) is a cylindricality, and steel structure pile is adopted in core stake (1), and the cross section is a H shape.Along the surperficial opposing parallel of core stake (1) pile body (2) is set, the core stake (1) of pile body (2) parcel, the bottom of core stake (1) is stake bottom (3), the diameter of stake bottom (3) is greater than core stake (1), pile body (2) cross section is semicircle, as Fig. 1, Fig. 2, Fig. 8, shown in Figure 10.
Embodiment 4
By core stake (1), pile body (2) and the stake end (3) are formed, and core stake (1) is an inversed taper platform shape, and precast reinforced concrete piles is adopted in core stake (1), and the cross section is square.Along the surperficial opposing parallel of core stake (1) pile body (2) is set, the core stake (1) of pile body (2) parcel, the bottom of core stake (1) is stake bottom (3), the diameter of stake bottom (3) is greater than core stake (1), pile body (2) cross section is circular, as Fig. 6, Fig. 7, Fig. 8, Figure 11, Figure 12, Figure 13, shown in Figure 15.
By core stake (1), pile body (2) and the stake end (3) are formed, and core stake (1) is an inversed taper platform shape, and present walling pile is adopted in core stake (1), and the cross section is circular.Along the surperficial opposing parallel of core stake (1) pile body (2) is set, the core stake (1) of pile body (2) parcel, the bottom of core stake (1) is stake bottom (3), the diameter of stake bottom (3) is greater than core stake (1), pile body (2) cross section is fan-shaped, as Fig. 9, Figure 11, Figure 14, shown in Figure 15.
Embodiment 6
Around core stake (1) 3 auxiliary wick stakes (4) are set around the core stake (1), as shown in Figure 3.
Around core stake (1) 4 auxiliary wick stakes (4) are set around the core stake (1), as shown in Figure 3.
Embodiment 7
Core stake (1) is solid tubbiness, as Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 14, Figure 15, shown in Figure 16.
Embodiment 8
Core stake (1) is a hollow barrel, shown in Fig. 4, Fig. 6, Fig. 13.
Embodiment 9
Pile body (2) is gone up at interval reducing pile body (5) is set, and the diameter of reducing pile body (5) is greater than pile body (2), as shown in Figure 5.
Embodiment 10
The middle part of core stake (1) is provided with pile body (2) with the surperficial opposing parallel of lower edge core stake (1), the core stake (1) of pile body (2) parcel, as shown in Figure 2.
Embodiment 11
Intersect along pile body (2) side of the pile body (2) of parcel core stake (1) and pile body (2) side of 1 adjacent parcel core stake (1), becomes an integral body, as Figure 11, Figure 14, shown in Figure 16.
Embodiment 12
Intersect along pile body (2) side of the pile body (2) of parcel core stake (1) and pile body (2) side of 2 adjacent parcel cores stake (1), becomes an integral body, as shown in figure 12.
Embodiment 13
During use, adopt earlier the high-pressure rotary jet grouting pile machine to hole, make the degree of depth of boring reach pile body (2) projected depth after, carry brill while rotate, the high-pressure rotary-spray by the high-pressure rotary jet grouting pile machine injects cement paste, makes (3) bottom pile body (2) and the stake.When high-pressure rotary-spray arrives design height, stop slip casting and extract drilling rod, with pipeline sinking pile machine or a Static pressure pile driver or an auger insertion core stake (1), as Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, shown in Figure 13.
Embodiment 14
During use, adopt earlier the high-pressure rotary jet grouting pile machine to hole, make the degree of depth of boring reach pile body (2) projected depth after, carry brill while rotate, the high-pressure rotary-spray by the high-pressure rotary jet grouting pile machine injects cement paste, makes (3) bottom pile body (2) and the stake.When high-pressure rotary-spray arrives design height, stop slip casting and extract drilling rod, with pipeline sinking pile machine or Static pressure pile driver or an auger insertion core stake (1) and several auxiliary wick stake (4), as shown in Figure 3.
Embodiment 15
During use, adopt earlier the high-pressure rotary jet grouting pile machine to hole, make the degree of depth of boring reach pile body (2) projected depth after, carry brill while rotate, the high-pressure rotary-spray by the high-pressure rotary jet grouting pile machine injects cement paste, makes (3) bottom pile body (2) and the stake.Regulate the high-pressure rotary-spray pressure of high-pressure rotary jet grouting pile machine and on pile body, make reducing pile body (5) at interval, when high-pressure rotary-spray arrives design height, stop slip casting and extract drilling rod, with pipeline sinking pile machine or a Static pressure pile driver or an auger insertion core stake (1), as shown in Figure 5.
Claims (6)
1, a kind of high-pressure rotary-spray lock pin expanded bore pile is characterized in that being made up of core stake (1), pile body (2) and stake bottom (3), and core stake (1) is cylindricality or inversed taper platform shape, precast reinforced concrete piles is adopted in core stake (1), present walling pile, steel structure pile and other stake, the cross section is square, circle and H shape; Along the surperficial opposing parallel of core stake (1) pile body (2) is set, the core stake (1) of pile body (2) parcel; The bottom of core stake (1) is stake bottom (3), and the diameter of stake bottom (3) is greater than core stake (1), and pile body (2) cross section is circular, semicircle and fan-shaped.
2, high-pressure rotary-spray lock pin expanded bore pile according to claim 1, what it is characterized in that described core stake (1) is provided with some auxiliary wick stakes (4) around core stake (1) on every side.
3, high-pressure rotary-spray lock pin expanded bore pile according to claim 1 is characterized in that described core stake (1) is solid tubbiness or hollow barrel.
4, high-pressure rotary-spray lock pin according to claim 1 stake is characterized in that described pile body (2) upward is provided with reducing pile body (5) at interval, and the diameter of reducing pile body (5) is greater than pile body (2).
5, high-pressure rotary-spray lock pin according to claim 1 stake is characterized in that the middle part of described core stake (1) is provided with pile body (2) with the surperficial opposing parallel of lower edge core stake (1), the core stake (1) of pile body (2) parcel.
6, high-pressure rotary-spray lock pin according to claim 1 stake is characterized in that pile body (2) side of the side stake of adjacent parcel core with several (1) of the pile body (2) of described parcel core stake (1) is intersected along pile body (2), becomes an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245360 CN2608557Y (en) | 2003-04-18 | 2003-04-18 | High pressure rotary spraying core inserting bottom expanding pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03245360 CN2608557Y (en) | 2003-04-18 | 2003-04-18 | High pressure rotary spraying core inserting bottom expanding pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2608557Y true CN2608557Y (en) | 2004-03-31 |
Family
ID=34169422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03245360 Expired - Lifetime CN2608557Y (en) | 2003-04-18 | 2003-04-18 | High pressure rotary spraying core inserting bottom expanding pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2608557Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962950A (en) * | 2010-09-14 | 2011-02-02 | 北京建材地质工程公司 | Long-spiral spray stirring vibration pipe sinking CFG (Cement Flyash Gravel) pile construction method and CFG composite file therefrom |
| CN103161151A (en) * | 2013-04-02 | 2013-06-19 | 中国水电顾问集团中南勘测设计研究院 | Construction method of high pressure jet grouting hollow strengthening tubular pile and high pressure jet grouting hollow strengthening tubular pile |
| CN105297717A (en) * | 2015-10-30 | 2016-02-03 | 周同和 | Composite foundation pile with lower portion enlarged diameter section and construction method of composite foundation pile |
| CN108677934A (en) * | 2018-06-15 | 2018-10-19 | 金陵科技学院 | The construction method of uplift pile and uplift pile |
-
2003
- 2003-04-18 CN CN 03245360 patent/CN2608557Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962950A (en) * | 2010-09-14 | 2011-02-02 | 北京建材地质工程公司 | Long-spiral spray stirring vibration pipe sinking CFG (Cement Flyash Gravel) pile construction method and CFG composite file therefrom |
| CN103161151A (en) * | 2013-04-02 | 2013-06-19 | 中国水电顾问集团中南勘测设计研究院 | Construction method of high pressure jet grouting hollow strengthening tubular pile and high pressure jet grouting hollow strengthening tubular pile |
| CN103161151B (en) * | 2013-04-02 | 2015-08-26 | 中国电建集团中南勘测设计研究院有限公司 | A kind of high-pressure rotary-spray hollow reinforces construction method and the high-pressure rotary-spray hollow reinforcing pile tube of pile tube |
| CN105297717A (en) * | 2015-10-30 | 2016-02-03 | 周同和 | Composite foundation pile with lower portion enlarged diameter section and construction method of composite foundation pile |
| CN108677934A (en) * | 2018-06-15 | 2018-10-19 | 金陵科技学院 | The construction method of uplift pile and uplift pile |
| CN108677934B (en) * | 2018-06-15 | 2024-01-19 | 金陵科技学院 | Anti-pulling pile anti-cancer agent pile pulling construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1219945C (en) | High-pressure rotary spraying and core inserting process to form pedestal pile | |
| CN101644053B (en) | Method for enhancing pulling-resistant and tensile-resistant capability of soft and weak soil layer anchor rod/anchor rope | |
| CN102011399B (en) | PHC pile-based multiple high jet pedestal pile construction method | |
| CN1710215A (en) | Side downhole soil-extruded foundation treating method and horizontal extruding-spreading device | |
| CN204662426U (en) | Cement mixing method | |
| CN201730091U (en) | Cast-in-situ pile | |
| CN1718937A (en) | Technology of non soil taking hole guiding prestressed pipe pile or premade square sunk pile | |
| CN102373705A (en) | Pile sinking device and method for outer digging pre-stressed centrifugal pipe pile and square pile | |
| CN1238610C (en) | Sleeve pile and designing method | |
| CN2608557Y (en) | High pressure rotary spraying core inserting bottom expanding pile | |
| CN107938652B (en) | Rock-inlaid steel reinforced cement stirring wall and construction method thereof | |
| CN1786351A (en) | Non taking soil drawing hole method for construction of sinking pile for prestressed pipe pile or prefabricated square pile | |
| CN2753797Y (en) | Long-spiral pressure-poured concrete core-inserting combined pile | |
| CN1320214C (en) | Long spiral press pouring concrete lock pin combination pile and construction method thereof | |
| CN1252358C (en) | High-pressure rotary-jetting hollow bottom-expanding pile and making method thereof | |
| CN1117906C (en) | Construction method of concrete pile and its construction equipment | |
| CN1676763A (en) | Boring-tamping cement-soil compacting pile construction method | |
| CN201268857Y (en) | Soil shovel | |
| CN201087402Y (en) | High bearing ability filling pile | |
| CN1119232A (en) | After-grouting pile composite foundation and construction method thereof | |
| CN200955146Y (en) | Multi-stage sink-pipe bored concrete pile | |
| CN2659960Y (en) | Hollow club-footed pile through high pressure spirally spraying | |
| CN1141457C (en) | Base-extending deposited pile and its formation process | |
| CN208183780U (en) | A kind of resistance to plucking structure | |
| CN208618395U (en) | Engineering method stake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |