CN205062820U - Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile - Google Patents
Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile Download PDFInfo
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- CN205062820U CN205062820U CN201520730176.2U CN201520730176U CN205062820U CN 205062820 U CN205062820 U CN 205062820U CN 201520730176 U CN201520730176 U CN 201520730176U CN 205062820 U CN205062820 U CN 205062820U
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Abstract
The utility model discloses a double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile. Including preceding campshed, back campshed, connect in the preceding pile bolck guan liang of front -seat pile bolck end and connect in the back pile bolck guanliang of back row pile bolck end, connect the linking beam between preceding pile bolck guanliang and back pile bolck hat roof beam, preceding campshed is one row of stagnant water stake, and the precast pile is inserted at the interval in the stagnant water stake, back campshed is one row of reinforced concrete bored concrete pile, linking beam is single limb linking beam. This supporting construction had both overcome the foundation ditch engineering that need take the measure of intercepting water, and double row pile supporting construction need add the defect of stagnant water curtain, had overcome stagnant water stake interpolation precast pile level again and to the defect that rigidity is low, had realized that supporting construction keeps off unity native and that intercept water, has reduced widely and has strutted engineering cost.
Description
Technical field
The utility model relates to a kind of foundation pit supporting construction, is specifically related to a kind of Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile.Be a kind of novel foundation pit supporting construction form integrating the native water stopping function of gear, need the deep-foundation pit engineering of water proof under being particularly useful for the geological conditionss such as weak soil, silt, fine sand, belong to foundation field.
Background technology
The supporting and protection structure adopting forward and backward two row's soldier piles in base pit engineering, applied increasing support form in the last few years, can avoid adopting inner support, thus reduce inner support to the impact of soil excavation, Underground Construction.
The front-seat water-seal pile interpolation preformed pile of described Retaining Structure with Double-row Piles is used for the non-rigid geological conditionss such as weak soil, silt, fine sand, a kind ofly in cement mixing method, insert preformed pile and the compound formed keeps off native water-stopping structure, there are energy-saving and emission-reduction, economic environmental protection, to features such as surrounding environment influence are little.
Described common double Row Piles Supporting Structure is made up of bear down on one Guan Liang and linking beam of front-seat deposited reinforced concrete pile, rear placing of reinforcement cast-in-place concrete pile, front and back campshed, and before and after this supporting and protection structure utilizes, campshed and linking beam form space door frame.The shortcoming of general Retaining Structure with Double-row Piles is, for the base pit engineering needing to intercept water, because front and rear row separate type deposited reinforced concrete pile cannot form water-stop curtain, so need separately to establish water-stop curtain, because this increasing working procedure and construction costs, and the castinplace pile quantity adopted is more, the pollution of work progress mud to environment is more serious.
Utility model content
The purpose of this utility model is to provide a kind of Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile.
For achieving the above object, the utility model adopts following technical scheme:
A Retaining Structure with Double-row Piles for water-seal pile interpolation preformed pile combined deposited pile, include front campshed, rear campshed, be connected to front campshed top front stake apical cap beam and be connected to rear campshed top rear stake apical cap beam, be connected to linking beam between front stake apical cap beam and rear stake apical cap beam; Described front campshed is row's water-seal pile, and in water-seal pile, preformed pile is inserted at interval, and described rear campshed is a placing of reinforcement cast-in-place concrete pile, and described linking beam is single limb linking beam.
Further, described preformed pile type is preformed pile.
Further, the spacing of described rear campshed is 1 times or 2 times of the pile spacing of preformed pile.
Further, the spacing of described linking beam is identical with the pile spacing of rear campshed.
Further, described preformed pile stake top should anchor in front stake apical cap beam, and anchors into 0.5 times that length is not less than front stake apical cap depth of beam.
Further, the longitudinal reinforcement in described linking beam anchors in front stake apical cap beam and rear stake apical cap beam, and anchorage length is not less than the tension anchorage length of 1.5 times.
Compared with prior art the utility model has following characteristics:
1, the utility model is by being positioned at front-seat water-seal pile interpolation preformed pile and front stake apical cap beam, be positioned at the deposited reinforced concrete pile of rear row and rear stake apical cap beam, and the single limb linking beam composition between the campshed of front and back, it is a kind of space gantry type supporting structure system, Water And Earth Pressures load can be born, there is the advantage that lateral deformation stiffness is large, effectively can control the side-move distortion of foundation ditch.
2, the calculating of common double Row Piles Supporting Structure and measured result show, front campshed pressurized, rear campshed tension, the utility model takes full advantage of this loading characteristic of double-row pile, using supporting pile tube good for anti-pressure ability as front campshed, using good for anti-bending strength deposited reinforced concrete pile as rear campshed, give full play to material property.
3, front-seat water-seal pile interpolation preformed pile solves and needs in the base pit engineering of waterproof of man, adopts common double Row Piles Supporting Structure separately to set up the requirement of waterproof of man, reduces construction costs.Rear row's castinplace pile solves the problem adopting cantilevered water-seal pile interpolation preformed pile can not meet again base pit engineering safety and Deformation control requirement.The Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile has the large feature of lateral deformation stiffness, and without the need to arranging inner support or anchor pole in hole, increasing pit earthwork excavation and Underground Construction convenience, accelerating construction progress, saving the duration.
4, the utility model fully combines the advantage of common double Row Piles Supporting Structure and water-seal pile interpolation preformed pile, both overcome and need take in the base pit engineering of measures of preventing water, general Retaining Structure with Double-row Piles need set up the defect of water-stop curtain in addition, overcomes again the defect that single water-seal pile interpolation preformed pile integral rigidity is low.
5, the utility model water-seal pile interpolation preformed pile replaces the front-seat deposited reinforced concrete pile in common double Row Piles Supporting Structure, water-seal pile interpolation preformed pile has sealing and the native function of gear concurrently, therefore the water proof problem of base pit engineering is solved, overcome the defect that general double-row pile needs to set up in addition water-stop curtain, achieving supporting and protection structure gear soil and the unification of water proof, so without the need to separately establishing water-stop curtain, greatly reducing support engineering cost, decrease working procedure, save the construction period.
6, the utility model also overcomes the defect taking single water-seal pile interpolation preformed pile lateral deformation stiffness deficiency, for general deep-foundation pit engineering, without the need to arranging inner support or anchor pole (anchor cable) in hole, greatly facilitate soil excavation and Underground Construction in foundation ditch, improve efficiency of construction.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is that solid of the present utility model arranges schematic diagram.
Fig. 2 is the utility model double-row pile mechanics model schematic diagram.
Fig. 3 is layout schematic diagram of the present utility model.
Reference numeral: 1-front campshed, 2-front stake apical cap beam, 3-preformed pile, 4-rear campshed, 5-rear stake apical cap beam, 6-linking beam.
Detailed description of the invention
Embodiment is see shown in Fig. 1 ~ 3, a Retaining Structure with Double-row Piles for water-seal pile interpolation preformed pile combined deposited pile, include front campshed 1, rear campshed 4, be connected to front campshed top front stake apical cap beam 2 and be connected to rear campshed top rear stake apical cap beam 5, be connected to linking beam 6 between front stake apical cap beam 2 and rear stake apical cap beam 4; Described front campshed 1 is row's water-seal pile, and in water-seal pile, preformed pile 3 is inserted at interval, and described rear campshed 4 is a placing of reinforcement cast-in-place concrete pile, and described linking beam 6 is single limb linking beam.
In the present embodiment, described preformed pile 3 type is preformed pile.
The spacing of described rear campshed 4 is 1 times of the pile spacing of water-seal pile interpolation preformed pile 3, and namely, the spacing of placing of reinforcement cast-in-place concrete pile is identical with the pile spacing of water-seal pile interpolation preformed pile.In other embodiments, the spacing of rear campshed 4 is 2 times of the pile spacing of water-seal pile interpolation preformed pile 3.
The spacing of described single limb linking beam 6 is identical with the pile spacing of rear campshed 4.
Described preformed pile 3 tops should anchor in front stake apical cap beam 2, and anchor into 0.5 times that length is not less than front stake apical cap beam 2 height.
Longitudinal reinforcement in described linking beam 6 anchors in front stake apical cap beam 2 and rear stake apical cap beam 5, and anchorage length is not less than the tension anchorage length of 1.5 times.
The utility model is when carrying out intensity, stabilization and deformation calculating, carry out calculating by the double-row pile be made up of preformed pile 3, front stake apical cap beam 2, rear campshed 4, rear stake apical cap beam 5, linking beam 6 to try to achieve, and determine that the diameter of rear campshed, arrangement of reinforcement, building-in depth and level are to spacing according to designing requirement, and the model of preformed pile in water-seal pile interpolation preformed pile, the sectional dimension of single limb linking beam, concrete class and arrangement of reinforcement.
The length of the cement earth pile in described water-seal pile interpolation preformed pile is determined (being required the large person's value determined by preformed pile and foundation ditch sealing, antiseepage) jointly by preformed pile and foundation ditch sealing, antiseepage, and the pile strength of the cement earth pile in water-seal pile interpolation preformed pile need meet sealing and Strength co-mputation requirement.
The construction method of the Retaining Structure with Double-row Piles of this application water-seal pile interpolation preformed pile combined deposited pile, its construction sequence is as follows.
Step one, according to planning to build the hydrogeological conditions in place, base pit engineering geometric parameter, base pit engineering water proof, Antiseepage stability requirement, calculate each technical data required for Retaining Structure with Double-row Piles of construction water-seal pile interpolation preformed pile combined deposited pile.Specifically, first according to planning to build the hydrogeological conditions in place and the geometric parameter of base pit engineering, carry out supporting and protection structure intensity, support system stability and distortion to calculate, determine the diameter of rear campshed 4, strength grade of concrete, sectional reinforcement, building-in depth and level interval etc., the model of preformed pile 3 and length, the sectional dimension of linking beam 6, strength grade of concrete, sectional reinforcement.Then require and the calculated length of preformed pile 3 according to base pit engineering water proof, Antiseepage stability, determine the length of front campshed 1.The pile strength of front campshed 1 should meet calculation requirement, and transmission coefficient meets sealing requirement.
Step 2, according to construction project to be built site condition and surrounding enviroment condition, select particular location, start to construct with triaxial cement mixing pile machine the cement mixing method of campshed 1 before a section, before this section is constructed campshed 1 cement mixing method setting and harden before, before next section of triaxial cement mixing pile machine displacement construction during the cement mixing method of campshed 1, start interpolation preformed pile 3 and insert cement-soil stirring pile construction operation, interpolation preformed pile 3 inserts cement-soil stirring pile construction operation and completes in 30 minutes at the cement-soil stirring pile construction of corresponding position and carry out.
Step 3, constantly repeat step 2, until by designing requirement constructed all before campshed 1, interpolation preformed pile 3.
Campshed 4, front stake apical cap beam 2, rear stake apical cap beam 5 and linking beam 6 after step 4, construction.Specifically, while campshed 4 after construction (stake of rear campshed 4 push up main muscle length in reserve need meet anchoring require), the construction of campshed stake apical cap beam 2, rear stake apical cap beam 5 and linking beam 6 is carried out in the distribution of campshed construction subsequently, the work progress of front stake apical cap beam 2, rear stake apical cap beam 5 and linking beam 6 is, the reinforcing bar of first colligation front stake apical cap beam, the rear reinforcing bar of stake apical cap beam and the reinforcing bar of linking beam, it is integrated poured then to carry out concrete.
Step 5, when front campshed 1 meets seepage resistance demand, carry out Ground Water Pumping during Excavation, when the Retaining Structure with Double-row Piles each several part of water-seal pile interpolation preformed pile combined deposited pile all meets requirement of strength, carry out pit earthwork excavation.
After step 6, excavation of foundation pit to projected depth, start Underground Construction.
Step 7, Underground Construction go out terrace, the space backfill compacting between structure and foundation pit side-wall.
Content described in this manual embodiment is only exemplifying the way of realization that the utility model is conceived; protection domain of the present utility model should not be considered as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also and conceive the equivalent technologies means that can expect according to the utility model in those skilled in the art.
Claims (5)
1. a Retaining Structure with Double-row Piles for water-seal pile interpolation preformed pile combined deposited pile, is characterized in that: include front campshed (1), rear campshed (4), be connected to front campshed top front stake apical cap beam (2) and be connected to rear campshed top rear stake apical cap beam (5), be connected to linking beam (6) between front stake apical cap beam (2) and rear stake apical cap beam (5); Described front campshed (1) is row's water-seal pile, and in water-seal pile, preformed pile (3) is inserted at interval, and described rear campshed (4) is a placing of reinforcement cast-in-place concrete pile, and described linking beam (6) is single limb linking beam.
2. the Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile according to claim 1, is characterized in that: the spacing of described rear campshed (4) is 1 times or 2 times of the pile spacing of preformed pile (3).
3. the Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile according to claim 1, is characterized in that: the spacing of described linking beam (6) is identical with the pile spacing of rear campshed (4).
4. the Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile according to claim 1, it is characterized in that: described preformed pile (3) stake top should anchor in front stake apical cap beam (2), and anchor into 0.5 times that length is not less than front stake apical cap beam (2) height.
5. the Retaining Structure with Double-row Piles of water-seal pile interpolation preformed pile combined deposited pile according to claim 1, it is characterized in that: the longitudinal reinforcement in described linking beam (6) anchors in front stake apical cap beam (2) and rear stake apical cap beam (5), and anchorage length is not less than the tension anchorage length of 1.5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520730176.2U CN205062820U (en) | 2015-09-18 | 2015-09-18 | Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520730176.2U CN205062820U (en) | 2015-09-18 | 2015-09-18 | Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile |
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| CN205062820U true CN205062820U (en) | 2016-03-02 |
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| CN201520730176.2U Active CN205062820U (en) | 2015-09-18 | 2015-09-18 | Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970973A (en) * | 2016-06-29 | 2016-09-28 | 广州市市政工程设计研究总院 | Soft soil foundation pit double-row piles supporting structure considering soil-arch and deformation space effect |
| CN109736298A (en) * | 2019-03-11 | 2019-05-10 | 深圳宏业基岩土科技股份有限公司 | The Bar Anchorage structure of bored concrete pile and crown beam |
| CN112095617A (en) * | 2020-08-21 | 2020-12-18 | 中国建筑第八工程局有限公司 | Deep pit supporting structure in foundation pit and construction method thereof |
-
2015
- 2015-09-18 CN CN201520730176.2U patent/CN205062820U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970973A (en) * | 2016-06-29 | 2016-09-28 | 广州市市政工程设计研究总院 | Soft soil foundation pit double-row piles supporting structure considering soil-arch and deformation space effect |
| CN109736298A (en) * | 2019-03-11 | 2019-05-10 | 深圳宏业基岩土科技股份有限公司 | The Bar Anchorage structure of bored concrete pile and crown beam |
| CN109736298B (en) * | 2019-03-11 | 2024-03-08 | 深圳宏业基岩土科技股份有限公司 | Steel bar anchoring structure of cast-in-place pile and crown beam |
| CN112095617A (en) * | 2020-08-21 | 2020-12-18 | 中国建筑第八工程局有限公司 | Deep pit supporting structure in foundation pit and construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 No. 88 creative road, Jianye District, Jiangsu, Nanjing Patentee after: Nanjing surveying and mapping investigation and Research Institute Limited by Share Ltd Address before: 210000 No. 88 creative road, Jianye District, Jiangsu, Nanjing Patentee before: Nanjing Surveying Mapping Prospecting Research Institute Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |