CN201245839Y - Composite bearing pile of concrete stirring soil implanted prefabricated reinforced concrete core rod - Google Patents
Composite bearing pile of concrete stirring soil implanted prefabricated reinforced concrete core rod Download PDFInfo
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- CN201245839Y CN201245839Y CNU2008201624515U CN200820162451U CN201245839Y CN 201245839 Y CN201245839 Y CN 201245839Y CN U2008201624515 U CNU2008201624515 U CN U2008201624515U CN 200820162451 U CN200820162451 U CN 200820162451U CN 201245839 Y CN201245839 Y CN 201245839Y
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Abstract
A composite bearing pile of a precast reinforced concrete core bar implanted with cement soil mainly comprises a pile body, a large-diameter cement mixing pile formed at the outer layer of the pile body by mixing with soil by a cement mixing pile machine, and an inner small-section precast reinforced concrete core bar pile implanted before setting of the large-diameter cement mixing pile. According to different conditions, such as application environment and soil distribution, the length of the large-diameter cement mixing pile can be consistent to that of the small-section precast reinforced concrete core bar pile, or smaller than that of the small-section precast reinforced concrete core bar pile so as to form a variable-section composite bearing pile structure. Accordingly, the large-diameter composite pile is formed of the cement mixing pile and the implanted pile, and the cost-effective cement mixing pile can form the large-diameter section to significantly increase the peripheral specific surface area of the pile body, thereby greatly improving the side friction of the pile, reducing or eliminating soil compaction or noises, improving the bearing capability of the pile and lowering the engineering cost.
Description
Technical field
The utility model relates to a kind of compound pressure bearing pile that is used to bear the top loading, and particularly a kind of soil-cement is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug.
Background technology
The type of the stake of using in the civil engineering can be divided into preformed pile and castinplace pile two big classes according to the difference of job practices at present, often adopts stake types such as bored pile, tube-sinking cast-in-situ pile, preformed pile.Bored pile generally adopts the mud off pore-forming, and the placing of concrete technology exists speed of application slow under water, and mud needs outward transport, contaminated environment, shortcomings such as cost height.Tube-sinking cast-in-situ pile has fast, the low cost and other advantages of speed of application, but is easy to produce quality problems such as constriction, broken pile, local folder soil, concrete disintegration and strength deficiency.Precast reinforced concrete piles is an a kind of maximum type of domestic use, shapes such as the side of having, cross section commonly used, circle, and main employing is the prestress thin wall pile tube in recent years.The pile sinking mode of preformed pile has knocking, vibratory drilling method and static pressure method etc., has advantages such as reliable in quality, speed of application is fast, cost is low relatively.But it belongs to the soil compaction stake, in immersed tube the soil body is produced extruding, influences neighboring buildings, road, underground utilities etc., causes dispute easily.For avoiding piling, need extra increase protection expense, thereby its use is restricted simultaneously surrounding environment influence.
Summary of the invention
The purpose of this utility model is to provide a kind of to have minimizing the squeezing action of surrounding enviroment, supporting capacity height, speed of application is fast, construction costs is low soil-cement are implanted the compound pressure bearing pile of prefabricated reinforced concrete plug for the deficiency that solves above-mentioned technology.
In order to achieve the above object, the designed a kind of soil-cement of the utility model is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, it mainly is made of pile body, the pile body skin is that the cement mixing pile machine stirs the major diameter cement mixing pile that soil forms, and inside is the small bore prefabricated reinforced concrete plug stake that the major diameter cement mixing pile is implanted when not condensing.According to conditions such as different environments for use, soil property distributions, the length of major diameter cement mixing pile can be consistent with the stake of small bore prefabricated reinforced concrete plug, also can form the compound pressure bearing pile structure of variable cross-section less than the stake of small bore prefabricated reinforced concrete plug.The stake of small bore prefabricated reinforced concrete plug is through the optimum cross section that equal strength calculates, prestressing force preformed pile or non-prestressed preformed pile.It is 500 millimeters to 1500 millimeters that cement stirs general stake footpath, and stirring the degree of depth is 5 meters to 30 meters, and the cement blend ratio is 10% to 20%, and water/binder ratio is 0.5 to 1.5.
The resulting soil-cement of the utility model is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, looking soil property with powerful single shaft cement mixer earlier distributes and the soil compaction situation, after omnidistance stirring soil or top part stirred soil formation major diameter cement mixing pile, the precast reinforced concrete piles of implanting the optimum cross section that draws as calculated with pile press formed compound pressure bearing pile type.Cement mixing pile and embedded pile form the major diameter composite pile jointly, major diameter by cheap cement mixing pile formation, pile body periphery specific area is enlarged markedly, thereby pile side friction is increased substantially, reached the supporting capacity that improves stake, the purpose that reduces construction costs.Precast reinforced concrete piles can be prestressed reinforced concrete pipe pile, the stake of prestressed reinforced concrete side or non-prestressed Any shape preformed pile, making this soil-cement implant the compound pressure bearing pile of prefabricated reinforced concrete plug compares with existing preformed pile, can increase the bearing capacity of pile body, reduce even do not have soil compaction or a noise, make it the influence of surrounding environment is reduced greatly, and have the cheap characteristics of construction costs concurrently; Compare with existing castinplace pile, had both the advantage of preformed pile, therefore be particluarly suitable for using in the coastal soft foundation.Simultaneously, the compound pressure bearing pile of this soil-cement implantation prefabricated reinforced concrete plug also has construction rapidly, characteristics such as safety reliability height.
Description of drawings
Fig. 1 is the utility model embodiment 1 compound pressure bearing pile longitudinal section schematic diagram;
Fig. 2 is the cross-sectional structure schematic diagram of the utility model embodiment 1,2;
Fig. 3 is that the utility model is implemented the compound pressure bearing pile longitudinal section of 2 variable cross-sections schematic diagram.
Description of reference numerals: 1, reinforced concrete prefabricated plug stake, 2, cement mixing pile.
The specific embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
As shown in Figure 1, the soil-cement that present embodiment is described is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, it mainly is made of pile body, the pile body skin is that the cement mixing pile machine stirs the major diameter cement mixing pile 2 that soil forms, and inside is the small bore prefabricated reinforced concrete plug stake 1 that major diameter cement mixing pile 2 is implanted when not condensing.The length of major diameter cement mixing pile 2 is consistent with the stake 1 of small bore prefabricated reinforced concrete plug.Small bore prefabricated reinforced concrete plug stake 1 is the prestress thin wall pile tube of the optimum diameter that calculates through equal strength.Cement mixing pile directly is 1500 millimeters, and stirring the degree of depth is 30 meters, and the cement blend ratio is 20%, and water/binder ratio is 1.5.
When planting, can adopt the powerful cement mixing pile machine of single shaft, place, stake position is carried out the powerful stirring of edge stake total length, adopt static pressure method to sink in the soil then in conjunction with vibratory drilling method or knocking.
As shown in Figure 3, the soil-cement that present embodiment is described is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, distribute and the soil compaction situation according to soil property, the length of major diameter cement mixing pile 2 forms the compound pressure bearing pile structure of variable cross-section less than small bore prefabricated reinforced concrete plug stake 1.The small bore prefabricated reinforced concrete plug stake 1 of implanting is non-prestressed circular preformed pile.Cement mixing pile directly is 1000 millimeters, and stirring the degree of depth is 10 meters, and the cement blend ratio is 10%, and water/binder ratio is 0.5.
When planting, can adopt top, compound pile driver limit to stir the limit and plant stake, also can adopt traditional mixer front to stir, the back pile driver is planted stake.
Claims (6)
1, a kind of soil-cement is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, it mainly is made of pile body, it is characterized in that the pile body skin is that the cement mixing pile machine stirs the major diameter cement mixing pile (2) that soil forms, inside is the small bore prefabricated reinforced concrete plug stake (1) that major diameter cement mixing pile (2) is implanted when not condensing.
2, soil-cement according to claim 1 is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, it is characterized in that major diameter cement mixing pile (2) is consistent with small bore prefabricated reinforced concrete plug stake (1) length.
3, soil-cement according to claim 1 is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, it is characterized in that the length of major diameter cement mixing pile (2) forms the compound pressure bearing pile structure of variable cross-section less than small bore prefabricated reinforced concrete plug stake (1).
4, implant the compound pressure bearing pile of prefabricated reinforced concrete plug according to claim 1 or 2 or 3 described soil-cements, it is characterized in that described small bore prefabricated reinforced concrete plug stake (1) is through optimum cross section that equal strength calculates, prestressing force preformed pile or non-prestressed preformed pile.
5, implant the compound pressure bearing pile of prefabricated reinforced concrete plug according to claim 1 or 2 or 3 described soil-cements, the cement mixing pile that it is characterized in that described major diameter cement mixing pile directly is 500 millimeters to 1500 millimeters, stirring the degree of depth is 5 meters to 30 meters, the cement blend ratio is 10% to 20%, and water/binder ratio is 0.5 to 1.5.
6, soil-cement according to claim 4 is implanted the compound pressure bearing pile of prefabricated reinforced concrete plug, the cement mixing pile that it is characterized in that described major diameter cement mixing pile directly is 500 millimeters to 1500 millimeters, stirring the degree of depth is 5 meters to 30 meters, cement blend ratio 10% to 20%, water/binder ratio 0.5 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201624515U CN201245839Y (en) | 2008-08-14 | 2008-08-14 | Composite bearing pile of concrete stirring soil implanted prefabricated reinforced concrete core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201624515U CN201245839Y (en) | 2008-08-14 | 2008-08-14 | Composite bearing pile of concrete stirring soil implanted prefabricated reinforced concrete core rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201245839Y true CN201245839Y (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201624515U Expired - Lifetime CN201245839Y (en) | 2008-08-14 | 2008-08-14 | Composite bearing pile of concrete stirring soil implanted prefabricated reinforced concrete core rod |
Country Status (1)
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| CN (1) | CN201245839Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644269A (en) * | 2012-05-04 | 2012-08-22 | 朱建新 | Non-earth-borrowing composite pile and construction method thereof |
| CN102900083A (en) * | 2012-09-05 | 2013-01-30 | 上海中技桩业股份有限公司 | Soil-squeezing-free precast pile grouting anticorrosive embedding construction method |
| CN102900082A (en) * | 2012-09-05 | 2013-01-30 | 上海中技桩业股份有限公司 | Soil-squeezing-free precast pile embedding construction method |
| CN103015413A (en) * | 2012-12-26 | 2013-04-03 | 杭州南联土木工程科技有限公司 | Construction method of composite pile with implanting-in rigid-body embedded into hard bearing stratum |
| CN103603347A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Anti-soil-accumulation cement mixing precast pile foundation and forming method |
| CN106480878A (en) * | 2016-12-05 | 2017-03-08 | 周同和 | A kind of upper and lower part expansion type soil cement is combined pile tube |
| CN106869120A (en) * | 2017-04-07 | 2017-06-20 | 东南大学 | One kind carbonization mixing pile ventilative pipe pile composite foundation and its construction method |
-
2008
- 2008-08-14 CN CNU2008201624515U patent/CN201245839Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644269A (en) * | 2012-05-04 | 2012-08-22 | 朱建新 | Non-earth-borrowing composite pile and construction method thereof |
| CN102900083A (en) * | 2012-09-05 | 2013-01-30 | 上海中技桩业股份有限公司 | Soil-squeezing-free precast pile grouting anticorrosive embedding construction method |
| CN102900082A (en) * | 2012-09-05 | 2013-01-30 | 上海中技桩业股份有限公司 | Soil-squeezing-free precast pile embedding construction method |
| CN103015413A (en) * | 2012-12-26 | 2013-04-03 | 杭州南联土木工程科技有限公司 | Construction method of composite pile with implanting-in rigid-body embedded into hard bearing stratum |
| CN103015413B (en) * | 2012-12-26 | 2015-05-27 | 杭州南联土木工程科技有限公司 | Construction method of composite pile with implanting-in rigid-body embedded into hard bearing stratum |
| CN103603347A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Anti-soil-accumulation cement mixing precast pile foundation and forming method |
| CN106480878A (en) * | 2016-12-05 | 2017-03-08 | 周同和 | A kind of upper and lower part expansion type soil cement is combined pile tube |
| CN106869120A (en) * | 2017-04-07 | 2017-06-20 | 东南大学 | One kind carbonization mixing pile ventilative pipe pile composite foundation and its construction method |
| CN106869120B (en) * | 2017-04-07 | 2018-07-31 | 东南大学 | A kind of carbonization mixing pile-is breathed freely pipe pile composite foundation and its construction method |
| WO2018184254A1 (en) * | 2017-04-07 | 2018-10-11 | 东南大学 | Carbonization mixing pile-ventilating pipe pile composite foundation and construction method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |