CN204875811U - Combined type multirow stake underground structure - Google Patents
Combined type multirow stake underground structure Download PDFInfo
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- CN204875811U CN204875811U CN201520645075.5U CN201520645075U CN204875811U CN 204875811 U CN204875811 U CN 204875811U CN 201520645075 U CN201520645075 U CN 201520645075U CN 204875811 U CN204875811 U CN 204875811U
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Abstract
The utility model discloses a combined type multirow stake underground structure, including preceding campshed, back campshed, spout the stake soon, the stake of precast reinforced concrete side, hat roof beam I, hat roof beam II, hat roof beam III, linking beam I and linking beam II, preceding campshed, back campshed and spout soon the stake the top be equipped with respectively the hat roof beam I, hat roof beam II and hat roof beam III, hat roof beam I, hat roof beam II and hat roof beam are connected through linking beam I and linking beam II respectively between III, it takes segmentation spraying worker soon to spout the stake soon, its terminal position's induration diameter can corresponding increase form the enlarged footing anchoring body, spout after the pile driving construction soon, insert the stake of precast reinforced concrete side wherein before its steady quality, the utility model discloses the device constitutes many row -pile support structure of combined type, can effectively improve support system's antidumping performance and rigidity, and newly -increased deformation control measure of foundation ditch excavation later stage also can be regarded as in pile body displacement among the effective control later stage foundation ditch excavation process.
Description
Technical field
The utility model belongs to architecture Foundation Pit Engineering field, relates to a kind of foundation pit supporting construction, is specifically related to a kind of combined type Multi-row pile foundation pit support structure.
Background technology
Along with the fast development of urban construction, deep-foundation pit engineering gets more and more, and difficulty of construction is also increasing, and all kinds of pattern foundation pit supporting structure mode is emerged in large numbers thereupon.Double-row-piles Structure because of its Deformation control effective, supporting and protection structure stability is strong, and the advantages such as applicability is strong, are widely used in domestic deep-foundation pit engineering field.But along with the appearance of ultra-deep foundation pit, conventional two-row pilework faces the excessive difficult problem of pile body shifting sometimes in Excavation Process.
Summary of the invention
The purpose of this utility model is the deficiency overcoming conventional two-row pilework, provides a kind of combined type Multi-row pile foundation pit support structure that effectively can control pile body shifting in Deep Excavation.
The technical solution of the utility model is: a kind of combined type Multi-row pile foundation pit support structure, by front campshed, rear campshed, rotary churning pile, Prefabricated Reinforced Concrete Square Pile, enlarged footing anchoring body, hat beam I, hat beam II, hat beam III, linking beam I and linking beam II form, front campshed, the top of rear campshed and rotary churning pile is respectively arranged with hat beam I, hat beam II and hat beam III, hat beam I, be connected with linking beam II respectively by linking beam I between hat beam II and hat beam III, rotary churning pile adopts double tube method to carry out section rotary spraying construction, the corresponding increase of induration diameter of rotary churning pile terminal position forms enlarged footing anchoring body, after jet grouting pile construction terminates, before rotary churning pile steady quality, Prefabricated Reinforced Concrete Square Pile is inserted wherein.
As optimal technical scheme of the present utility model:
The corresponding increase of induration diameter of described rotary churning pile terminal position forms enlarged footing anchoring body.
Described front campshed and rear campshed are bored pile.
Described rotary churning pile adopts double tube method to carry out section rotary spraying construction, and diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, and stake is long is not less than 6m.
The injecting paste material that described rotary churning pile adopts is cement-silicate slurries, and water ash is by weight being 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4% by weight percentage.
Described Prefabricated Reinforced Concrete Square Pile is solid pile, and cross section is square, and sectional dimension is 200 × 200mm ~ 600 × 600mm, and stake is long identical with rotary churning pile.
The diameter of described rotary churning pile position between segmentation induration should be greater than Prefabricated Reinforced Concrete Square Pile cross-sectional length at least 20mm.
The rectangular array arrangement of pile body layout of described front campshed, rear campshed and rotary churning pile and be spaced arrangement.
The utility model construction sequence is as follows:
(1) according to construction place exploration report and pattern foundation pit supporting structure Stability Checking result, the construction parameters such as the stake position of front and back campshed and rotary churning pile, diameter and stake be long are determined;
(2) pile-forming machine perching, carries out front and rear row pile driving construction;
(3), after front and rear row quality of pile tends towards stability, configuration cement-silicate slurries, carry out jet grouting pile construction;
(4), after jet grouting pile construction terminates, before its pile quality is stable, Prefabricated Reinforced Concrete Square Pile piling construction is carried out.
The beneficial effects of the utility model are:
The utility model is a kind of combined type Multi-row pile foundation pit support structure, row's section rotary spraying construction is provided with enlarged footing anchoring body after rear campshed in conventional two-row pilework, and be inserted with the rotary churning pile of Prefabricated Reinforced Concrete Square Pile, form the multiline pile supporting and protection structure of combined type, effectively can put forward overturning or slip resistance analysis performance and the rigidity of support system, pile body shifting in effective control later stage Excavation Process, also can be used as excavation of foundation pit later stage newly-increased deformation-controlling measures.
Accompanying drawing explanation
Fig. 1: the utility model combined type Multi-row pile foundation pit support structure layout schematic diagram.
Fig. 2: the utility model combined type Multi-row pile foundation pit support structure sectional type generalized section.
Fig. 3: the utility model combined type Multi-row pile foundation pit support structure continuous type generalized section.
In figure, each label is: 1---front campshed; 2---rear campshed; 3---rotary churning pile; 4---Prefabricated Reinforced Concrete Square Pile; 5---enlarged footing anchoring body; 6---hat beam I; 7---hat beam II; 8---hat beam III; 9---linking beam I; 10---linking beam II; A---earth's surface; B---at the bottom of foundation ditch.
Detailed description of the invention
Below by drawings and Examples, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: as shown in Figure 1, 2, a kind of combined type Multi-row pile foundation pit support structure, is made up of front campshed 1, rear campshed 2, rotary churning pile 3, Prefabricated Reinforced Concrete Square Pile 4, enlarged footing anchoring body 5, hat beam I 6, hat beam II 7, hat beam III 8, linking beam I 9 and linking beam II 10.The top of front campshed 1, rear campshed 2 and rotary churning pile 3 is respectively equipped with hat beam I 6, hat beam II 7 and hat beam III 8, is preced with beam I 6, is connected with linking beam II 10 respectively by linking beam I 9 between hat beam II 7 and hat beam III 8.Rotary churning pile 3 takes section rotary spraying construction, and the corresponding increase of induration diameter of its terminal position forms enlarged footing anchoring body 5.After rotary churning pile 3 construction terminates, before its steady quality, Prefabricated Reinforced Concrete Square Pile 4 is inserted wherein.Front campshed 1 and rear campshed 2 are bored pile, and rotary churning pile 3 adopts double tube method to carry out section rotary spraying construction, and diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, and stake is long is not less than 6m.The injecting paste material of rotary churning pile 3 is cement-silicate slurries, and water/binder ratio is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4%.Prefabricated Reinforced Concrete Square Pile 4 is solid pile, and cross section is square, and sectional dimension is 200 × 200mm ~ 600 × 600mm, and stake is long identical with rotary churning pile 3.The diameter of rotary churning pile 3 position between segmentation induration should be greater than Prefabricated Reinforced Concrete Square Pile 4 cross-sectional length at least 20mm.The rectangular array arrangement of pile body layout of front campshed 1, rear campshed 2 and rotary churning pile 3 and be spaced arrangement.
Embodiment 2: as shown in Figure 1,3, a kind of combined type Multi-row pile foundation pit support structure, is made up of front campshed 1, rear campshed 2, rotary churning pile 3, Prefabricated Reinforced Concrete Square Pile 4, hat beam I 6, hat beam II 7, hat beam III 8, linking beam I 9 and linking beam II 10.The top of front campshed 1, rear campshed 2 and rotary churning pile 3 is respectively equipped with hat beam I 6, hat beam II 7 and hat beam III 8, is preced with beam I 6, is connected with linking beam II 10 respectively by linking beam I 9 between hat beam II 7 and hat beam III 8.Rotary churning pile 3 takes continuous rotary-spraying construction, after its construction terminates, Prefabricated Reinforced Concrete Square Pile 4 is inserted wherein before its steady quality.Front campshed 1 and rear campshed 2 are bored pile, and rotary churning pile 3 adopts double tube method to construct, and diameter is 0.6 ~ 1.2m, and stake is long is not less than 6m.Injecting paste material is cement-silicate slurries, and water/binder ratio is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4%.Prefabricated Reinforced Concrete Square Pile 4 is solid pile, and cross section is square, and sectional dimension is 200 × 200mm ~ 600 × 600mm, and stake is long identical with rotary churning pile 3.The diameter of rotary churning pile 3 should be greater than Prefabricated Reinforced Concrete Square Pile 4 cross-sectional length at least 20mm.The rectangular array arrangement of pile body layout of front campshed 1, rear campshed 2 and rotary churning pile 3 and be spaced arrangement.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a combined type Multi-row pile foundation pit support structure, it is characterized in that: by front campshed (1), rear campshed (2), rotary churning pile (3), Prefabricated Reinforced Concrete Square Pile (4), enlarged footing anchoring body (5), hat beam I (6), hat beam II (7), hat beam III (8), linking beam I (9) and linking beam II (10) form, front campshed (1), the top of rear campshed (2) and rotary churning pile (3) is respectively arranged with hat beam I (6), hat beam II (7) and hat beam III (8), hat beam I (6), be connected with linking beam II (10) respectively by linking beam I (9) between hat beam II (7) and hat beam III (8), Prefabricated Reinforced Concrete Square Pile (4) is arranged in rotary churning pile (3).
2. a kind of combined type Multi-row pile foundation pit support structure according to claim 1, is characterized in that: rotary churning pile (3) end connects enlarged footing anchoring body (5).
3. a kind of combined type Multi-row pile foundation pit support structure according to claim 1 and 2, is characterized in that: described front campshed (1) and rear campshed (2) are bored pile.
4. a kind of combined type Multi-row pile foundation pit support structure according to claim 1 and 2, is characterized in that: described rotary churning pile (3) adopts double tube method to carry out section rotary spraying construction and obtains, and diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, and stake is long is not less than 6m.
5. a kind of combined type Multi-row pile foundation pit support structure according to claim 1 and 2, it is characterized in that: the injecting paste material that described rotary churning pile (3) adopts is cement-silicate slurries, water ash is by weight being 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4% by weight percentage.
6. a kind of combined type Multi-row pile foundation pit support structure according to claim 1 and 2, it is characterized in that: described Prefabricated Reinforced Concrete Square Pile (4) is the square solid pile in cross section, sectional dimension is 200 × 200mm ~ 600 × 600mm, and stake is long identical with rotary churning pile (3).
7. a kind of combined type Multi-row pile foundation pit support structure according to claim 1 and 2, is characterized in that: described rotary churning pile (3) diameter of position between segmentation induration is greater than Prefabricated Reinforced Concrete Square Pile (4) cross-sectional length at least 20mm.
8. a kind of combined type Multi-row pile foundation pit support structure according to claim 1 and 2, is characterized in that: the rectangular array arrangement of pile body layout of described front campshed (1), rear campshed (2) and rotary churning pile (3) and be spaced arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645075.5U CN204875811U (en) | 2015-08-25 | 2015-08-25 | Combined type multirow stake underground structure |
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| CN201520645075.5U CN204875811U (en) | 2015-08-25 | 2015-08-25 | Combined type multirow stake underground structure |
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| CN204875811U true CN204875811U (en) | 2015-12-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351232A (en) * | 2016-08-30 | 2017-01-25 | 中国建筑西南勘察设计研究院有限公司 | Internal rigid frame support foundation pit supporting structure and construction method thereof |
| CN107090839A (en) * | 2017-06-26 | 2017-08-25 | 深圳宏业基岩土科技股份有限公司 | Composite space landslide retaining structure |
-
2015
- 2015-08-25 CN CN201520645075.5U patent/CN204875811U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351232A (en) * | 2016-08-30 | 2017-01-25 | 中国建筑西南勘察设计研究院有限公司 | Internal rigid frame support foundation pit supporting structure and construction method thereof |
| CN107090839A (en) * | 2017-06-26 | 2017-08-25 | 深圳宏业基岩土科技股份有限公司 | Composite space landslide retaining structure |
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