CN204645056U - A kind of combined type double-row pile foundation pit support structure - Google Patents
A kind of combined type double-row pile foundation pit support structure Download PDFInfo
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- CN204645056U CN204645056U CN201420863946.6U CN201420863946U CN204645056U CN 204645056 U CN204645056 U CN 204645056U CN 201420863946 U CN201420863946 U CN 201420863946U CN 204645056 U CN204645056 U CN 204645056U
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- pile
- rotary churning
- reinforced concrete
- foundation pit
- prefabricated reinforced
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Abstract
The utility model discloses a kind of combined type double-row pile foundation pit support structure, belong to architecture Foundation Pit Engineering technical field.The utility model is made up of bored pile, rotary churning pile, Prefabricated Reinforced Concrete Square Pile, enlarged footing anchoring body, hat beam I, hat beam II and linking beam.The top of bored pile and rotary churning pile is respectively equipped with hat beam I and hat beam II, is connected between hat beam I and hat beam II by linking beam.Rotary churning pile takes section rotary spraying construction, and the corresponding increase of induration diameter of its terminal position forms enlarged footing anchoring body.After jet grouting pile construction terminates, before its steady quality, Prefabricated Reinforced Concrete Square Pile is inserted wherein.The utility model increases by row's section rotary spraying construction with enlarged footing anchoring body and is inserted with the rotary churning pile of Prefabricated Reinforced Concrete Square Pile after conventional Single row pillars structure, effectively can improve overturning or slip resistance analysis performance and the rigidity of Single row pillars supporting and protection structure, reduce the pile body shifting in later stage Excavation Process, compare conventional two-row pilework, there is suitable Deformation control effect, and cost is lower.Meanwhile, rotary churning pile also can be used as excavation of foundation pit later stage newly-increased deformation-controlling measures.
Description
Technical field
The utility model relates to a kind of foundation pit supporting construction, is specifically related to a kind of combined type double-row pile foundation pit support structure, belongs to architecture Foundation Pit Engineering field.
Background technology
Along with the fast development of urban construction, base pit engineering gets more and more, and all kinds of pattern foundation pit supporting structure mode is emerged in large numbers thereupon.Single row pillars supporting and protection 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 base pit engineering field in recent years.But along with the appearance of deep foundation ditch, conventional Single row pillars structure faces the excessive difficult problem of pile body shifting sometimes in Excavation Process.The utility model is a kind of combined type double-row pile foundation pit support structure, arises at the historic moment exactly under this engineering background.
Summary of the invention
The purpose of this utility model is the deficiency overcoming existing Single row pillars supporting and protection structure, provides a kind of combined type double-row pile foundation pit support structure that effectively can control the pile body shifting of Single row pillars supporting and protection structure in Excavation Process.
The technical solution of the utility model is: a kind of combined type double-row pile foundation pit support structure is by bored pile (1), rotary churning pile (2), Prefabricated Reinforced Concrete Square Pile (3), enlarged footing anchoring body (4), hat beam I (5), hat beam II (6) and linking beam (7) composition, it is characterized in that: rotary churning pile (2) takes section rotary spraying construction, enlarged footing anchoring body (4) is formed in the corresponding increase of the induration diameter of its terminal position, after rotary churning pile (2) construction terminates, before rotary churning pile (2) steady quality, Prefabricated Reinforced Concrete Square Pile (3) is inserted in rotary churning pile (2).
Described rotary churning pile (2) adopts double tube method to carry out section rotary spraying construction, and diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, often saves rotary churning pile (2) length and is not less than 6m.
The injecting paste material of described rotary churning pile (2) is cement and water glass slurries, and wherein water/binder ratio is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4%.
Described Prefabricated Reinforced Concrete Square Pile (3) is solid pile, and Prefabricated Reinforced Concrete Square Pile (3) cross section is square, and sectional dimension is 200 × 200mm ~ 600 × 600mm, and the stake of Prefabricated Reinforced Concrete Square Pile (3) is long identical with rotary churning pile (2).
Described rotary churning pile (2) diameter of position between segmentation induration should be greater than Prefabricated Reinforced Concrete Square Pile (3) cross-sectional length at least 20mm.
The rectangular array arrangement of pile body layout of described bored pile (1) and rotary churning pile (2), and be spaced arrangement.
The utility model beneficial effect is: after conventional Single row pillars structure, increase by row's section rotary spraying construction with enlarged footing anchoring body and be inserted with the rotary churning pile of Prefabricated Reinforced Concrete Square Pile, effectively can improve overturning or slip resistance analysis performance and the rigidity of Single row pillars supporting and protection structure, reduce the pile body shifting in later stage Excavation Process, compare conventional two-row pilework, there is suitable Deformation control effect, and cost is lower.
Accompanying drawing explanation
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.
Fig. 1 is the layout schematic diagram of the utility model combined type double-row pile foundation pit support structure.
Fig. 2 is the utility model combined type double-row pile foundation pit support structure generalized section (sectional type).
Fig. 3 is the utility model combined type double-row pile foundation pit support structure generalized section (continuous type).
In figure, each label is: 1-bored pile; 2-rotary churning pile; 3-Prefabricated Reinforced Concrete Square Pile; 4-enlarged footing anchoring body; 5-hat beam I; 6-hat beam II; 7-linking beam; A-earth's surface; At the bottom of B-foundation ditch.
Detailed description of the invention
The utility model combined type double-row pile foundation pit support structure is made up of bored pile 1, rotary churning pile 2, Prefabricated Reinforced Concrete Square Pile 3, enlarged footing anchoring body 4, hat beam I 5, hat beam II 6 and linking beam 7.Rotary churning pile 2 takes section rotary spraying construction, and the corresponding increase of induration diameter of its terminal position is to form enlarged footing anchoring body 4.After rotary churning pile 2 construction terminates, before its steady quality, Prefabricated Reinforced Concrete Square Pile 3 is inserted wherein.
Described rotary churning pile 2 adopts double tube method vertically carrying out section rotary spraying construction, and churning diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, and stake is long is not less than 6m.
Described injecting paste material is cement+water glass slurries, and water/binder ratio is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4%, percentage by weight.
Described Prefabricated Reinforced Concrete Square Pile 3 is solid pile, and cross section is square, and sectional dimension is 200 × 200mm ~ 600 × 600mm, and Prefabricated Reinforced Concrete Square Pile is long identical with rotary churning pile 2.
The diameter of described rotary churning pile 2 position between segmentation induration should be greater than Prefabricated Reinforced Concrete Square Pile 3 cross-sectional length at least 20mm.
The utility model uses step 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 bored pile and rotary churning pile 2, diameter and stake be long are determined;
(2) pile-forming machine perching, carries out bored pile 1 and constructs;
(3), after Quality of Bored Pile tends towards stability, configuration cement+water glass slurries, carry out jet grouting pile construction;
(4), after rotary churning pile 2 construction terminates, before its pile quality is stable, Prefabricated Reinforced Concrete Square Pile 3 piling construction is carried out.
embodiment 1:as shown in Figure 1, 2, a kind of combined type double-row pile foundation pit support structure, is made up of bored pile 1, rotary churning pile 2, Prefabricated Reinforced Concrete Square Pile 3, enlarged footing anchoring body 4, hat beam I 5, hat beam II 6 and linking beam 7.Rotary churning pile 2 takes section rotary spraying construction, and the corresponding increase of induration diameter of its terminal position is to form enlarged footing anchoring body 4.After rotary churning pile 2 construction terminates, before its steady quality, Prefabricated Reinforced Concrete Square Pile 3 is inserted wherein.Rotary churning pile 2 adopts double tube method vertically carrying out section rotary spraying construction, and churning diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, and stake is long is not less than 6m, and injecting paste material is cement+water glass slurries, and water/binder ratio is 0.75:1 ~ 1:1, and water glass incorporation is 2% ~ 4%.Prefabricated Reinforced Concrete Square Pile 3 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 2.The diameter of rotary churning pile 2 position between segmentation induration should be greater than Prefabricated Reinforced Concrete Square Pile 3 cross-sectional length at least 20mm.
embodiment 2: as shown in Figure 1,3, a kind of combined type double-row pile foundation pit support structure, is made up of bored pile 1, rotary churning pile 2, Prefabricated Reinforced Concrete Square Pile 3, hat beam I 5, hat beam II 6 and linking beam 7.Rotary churning pile 2 takes continuous rotary-spraying construction, after its construction terminates, Prefabricated Reinforced Concrete Square Pile 3 is inserted wherein before its steady quality.Rotary churning pile 2 adopts double tube method to construct, and churning diameter is 0.6 ~ 1.2m, and stake is long is not less than 6m, and 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 3 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 2.The diameter of rotary churning pile 2 should be greater than Prefabricated Reinforced Concrete Square Pile 3 cross-sectional length at least 20mm.
Claims (5)
1. a combined type double-row pile foundation pit support structure, be made up of bored pile (1), rotary churning pile (2), Prefabricated Reinforced Concrete Square Pile (3), enlarged footing anchoring body (4), hat beam I (5), hat beam II (6) and linking beam (7), it is characterized in that: rotary churning pile (2) takes section rotary spraying construction, enlarged footing anchoring body (4) is formed in the corresponding increase of the induration diameter of its terminal position, after rotary churning pile (2) construction terminates, before rotary churning pile (2) steady quality, Prefabricated Reinforced Concrete Square Pile (3) is inserted in rotary churning pile (2).
2. combined type double-row pile foundation pit support structure according to claim 1, is characterized in that: described rotary churning pile (2) adopts double tube method to carry out section rotary spraying construction, and diameter is 0.6 ~ 1.2m, and sublevel interval is 1 ~ 2m, often saves rotary churning pile (2) length and is not less than 6m.
3. combined type double-row pile foundation pit support structure according to claim 1, it is characterized in that described Prefabricated Reinforced Concrete Square Pile (3) is solid pile, Prefabricated Reinforced Concrete Square Pile (3) cross section is square, sectional dimension is 200 × 200mm ~ 600 × 600mm, and the stake of Prefabricated Reinforced Concrete Square Pile (3) is long identical with rotary churning pile (2).
4. combined type double-row pile foundation pit support structure according to claim 1, is characterized in that described rotary churning pile (2) diameter of position between segmentation induration should be greater than Prefabricated Reinforced Concrete Square Pile (3) cross-sectional length at least 20mm.
5. combined type double-row pile foundation pit support structure according to claim 1, is characterized in that: the rectangular array arrangement of pile body layout of described bored pile (1) and rotary churning pile (2), and is spaced arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863946.6U CN204645056U (en) | 2014-12-31 | 2014-12-31 | A kind of combined type double-row pile foundation pit support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420863946.6U CN204645056U (en) | 2014-12-31 | 2014-12-31 | A kind of combined type double-row pile foundation pit support structure |
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| Publication Number | Publication Date |
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| CN204645056U true CN204645056U (en) | 2015-09-16 |
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| CN201420863946.6U Expired - Fee Related CN204645056U (en) | 2014-12-31 | 2014-12-31 | A kind of combined type double-row pile foundation pit support structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594360A (en) * | 2014-12-31 | 2015-05-06 | 云南建工基础工程有限责任公司 | Composite double-row pile foundation pit supporting structure |
-
2014
- 2014-12-31 CN CN201420863946.6U patent/CN204645056U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594360A (en) * | 2014-12-31 | 2015-05-06 | 云南建工基础工程有限责任公司 | Composite double-row pile foundation pit supporting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 650501 Yunnan Province, Kunming economic development zone information industry base, Forest Creek Road No. 188 Yunnan Construction Group 5 floor Patentee after: Yunnan construction investment foundation engineering Co., Ltd. Address before: 650501 Yunnan city of Kunming Province Economic and Technological Development Zone Forest Road No. 188 Patentee before: YANTAI CONSTRUCTION ENGINEERING FOUNDATION ENGINEERING CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20171231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |