CN113006114A - Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process - Google Patents
Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process Download PDFInfo
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- CN113006114A CN113006114A CN202110185404.2A CN202110185404A CN113006114A CN 113006114 A CN113006114 A CN 113006114A CN 202110185404 A CN202110185404 A CN 202110185404A CN 113006114 A CN113006114 A CN 113006114A
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- uplift pile
- cap
- vibration isolation
- foundation
- raft foundation
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- 238000002955 isolation Methods 0.000 title claims abstract description 49
- 238000012938 design process Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 230000000452 restraining effect Effects 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 9
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
Abstract
The invention provides a cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process, which is characterized by comprising the following steps of: pouring a uplift pile (10) with a cap-shaped constraint end head in advance in the foundation; paving a foundation cushion (20) around the uplift pile (10); and coating the exposed parts of the foundation bed course (20) and the uplift pile (10) with a vibration isolation material layer (30), and pouring the raft foundation (50) to cover the uplift pile (10) with the cap-shaped constraint end head. The cap type uplift pile utilizes the separation lock catch principle, has taken into account the characteristics of uplift, locking, isolation and modularization, has good tolerance and is convenient for construction.
Description
Technical Field
The invention belongs to the technical field of building structure vibration control, and particularly relates to a design process of a cap-shaped separated lock catch type raft foundation vibration isolation uplift pile.
Background
At present, in actual engineering, the aim of vibration reduction is generally achieved by additionally arranging a vibration isolation layer for the vibration problem generated in subway and underground engineering. Meanwhile, for a building with a low underground water level, the stability of the foundation is realized by arranging the uplift pile. Traditional uplift pile and raft foundation rigid connection can transmit the vibration of partial wave frequency, have leaded to the vibration isolation performance of basis relatively poor, and the summary summarizes that the vibration isolation can not effectual combination with the resistance to plucking, and concrete defect is:
the vibration isolation layer is arranged, so that the pulling resistance is not economical. For buildings with low water level and vibration isolation requirements, a vibration isolation layer is usually required to be arranged, and the anti-pulling performance of the buildings is realized by additionally arranging other expensive facilities which do not influence the vibration isolation performance, so that the construction cost of the project is greatly improved, and the economical efficiency is poor.
The anti-pulling adopts a through type, and the vibration isolation performance is poor. In the existing engineering, the anti-floating of the vibration isolation building structure is realized by additionally arranging anti-floating piles, but the anti-floating piles are generally through-type pouring, a through-type vibration isolation layer cannot be used for a raft foundation of the building structure, the vibration isolation performance is poor, and the target vibration isolation effect cannot be achieved.
Accordingly, there is a need for new techniques and methods that address, at least in part, the above-mentioned problems of the prior art.
Disclosure of Invention
Aiming at the defect that the traditional uplift pile can not carry out vibration isolation, the design process of the cap-shaped separation type lock catch type raft foundation vibration isolation uplift pile is provided, the cap-shaped separation lock catch structure is combined with an elastic material to form a raft foundation uplift vibration isolation system, and the contradiction that the uplift and vibration isolation of an underground building can not be considered is solved.
According to one aspect of the invention, a design process of a cap-shaped separated lock catch type raft foundation vibration isolation uplift pile is provided, which comprises the following steps:
pouring a uplift pile (10) with a cap-shaped constraint end head in advance in the foundation;
paving a foundation cushion (20) around the uplift pile (10);
the exposed parts of the foundation mat layer (20) and the uplift pile (10) are coated with a vibration isolation material layer (30),
pouring a raft foundation (50) to cover the uplift pile (10) with the cap-shaped restraining end head.
According to an embodiment of the invention, the layer of vibration isolating material (30) is a layer of polyurethane.
According to an embodiment of the invention, the foundation pad (20) is formed of a concrete material.
According to another aspect of the present invention, there is provided a cap-shaped separated type locking type raft foundation vibration isolation uplift pile structure, comprising:
a uplift pile (10) with a cap-shaped restraining end;
a foundation mat (20) laid around the uplift pile (10);
the exposed parts of the foundation mat layer (20) and the uplift pile (10) are coated with a vibration isolation material layer (30),
a raft foundation (40) covered with uplift piles (10) with cap-shaped restraining ends.
According to an embodiment of the invention, the layer of vibration isolating material (30) is a layer of polyurethane.
According to an embodiment of the invention, the foundation pad (20) is formed of a concrete material.
The design and thinking of the invention can effectively solve the problems of vibration isolation and non-uplift of the uplift pile, and the uplift pile has the following characteristics:
inheriting the action characteristics of the uplift pile. The uplift pile is an uplift system mainly aiming at buildings at lower water levels due to the action of water buoyancy and mainly under the action of tensile force. The invention utilizes the separated cap type uplift pile to provide enough tensile resistance and fully maintain the tensile characteristic of the uplift pile.
The vibration isolation requirement of the uplift pile is met. Polyurethane flexible material is filled in disconnect-type cap formula anti-floating pile and raft foundation junction, can effectively reduce the anti-floating pile and transmit the vibration for raft foundation, reaches its shock attenuation purpose.
The construction method is reliable and economical. Through improving the structure of raft foundation and uplift pile, adopt comparatively economic polyurethane as damping material, under the condition that satisfies its structural performance requirement, make full use of performance material characteristics and structural stress characteristic. The structure demand of structure is realized through setting up the built-in fitting in the work progress, can realize the monolithic construction like this, and traditional construction can be realized, does not have the influence to the time limit for a project requirement. The process difficulty is low, and the method is easy to realize.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic diagram of a design process flow of a cap-shaped separated lock catch type raft foundation vibration isolation uplift pile according to an embodiment of the invention;
fig. 2 is a schematic structural view of a cap-shaped separated latching raft foundation vibration isolation uplift pile according to an embodiment of the invention.
Detailed Description
The vibration control structure and the design method of the subway neighboring ancient building are further explained by combining the attached drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure.
Fig. 1 is a schematic diagram of a design process flow of a cap-shaped separated lock catch type raft foundation vibration isolation uplift pile according to an embodiment of the invention; fig. 2 is a schematic structural view of a cap-shaped separated latching raft foundation vibration isolation uplift pile according to an embodiment of the invention. Referring to fig. 1-2, a uplift pile (10) with a cap-shaped restraining head is first pre-cast in the foundation. The uplift pile mainly resists buoyancy generated by water on the raft foundation, the stress of the uplift pile is mainly tensile, and the effect of the uplift pile is mainly to improve the stability of the raft foundation; then, a foundation pad (20) is laid around the uplift pile (10), for example, by using concrete material, which mainly serves to protect the vibration isolation material and provide a working surface for the construction of the vibration isolation material. After the laying, a layer of vibration isolation material (30), which may be, for example, a polyurethane layer, is applied to the exposed portions of the foundation mat (20) and the uplift pile (10). The polyurethane is an effective vibration isolation material and is arranged between the subsequent raft foundation and the uplift pile, so that the raft foundation and the uplift pile achieve the effect of multi-degree-of-freedom flexible connection; and finally pouring a raft foundation (50) to cover the uplift pile (10) with the cap-shaped constraint end head. The raft foundation is mainly made of reinforced concrete materials and is a main bearing part of the foundation, and the rigidity of the raft foundation is higher.
Based on the characteristics of vibration isolation, non-pulling resistance and vibration isolation in the existing engineering, the vibration isolation and the pulling resistance are realized by fully utilizing the material characteristics by changing the structure. In addition, the flexible connection construction of the structure is realized through the embedded part under the condition that the construction process is not changed, and the construction in the pouring process is simple, economic and reliable.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent structural changes of the above embodiments according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a cap form separation type hasp formula raft foundation vibration isolation uplift pile design technology which characterized in that includes:
pouring a uplift pile (10) with a cap-shaped constraint end head in advance in the foundation;
paving a foundation cushion (20) around the uplift pile (10);
the exposed parts of the foundation mat layer (20) and the uplift pile (10) are coated with a vibration isolation material layer (30),
pouring a raft foundation (50) to cover the uplift pile (10) with the cap-shaped restraining end head.
2. The design process of the cap-shaped separated latch-type raft foundation vibration isolation uplift pile according to claim 1, wherein the vibration isolation material layer (30) is a polyurethane layer.
3. The cap-shaped separated latch-type raft foundation vibration isolation uplift pile design process according to claim 1, wherein the foundation pad layer (20) is formed of a concrete material.
4. The utility model provides a cap form separation type hasp formula raft foundation vibration isolation uplift pile structure which characterized in that includes:
a uplift pile (10) with a cap-shaped restraining end;
a foundation mat (20) laid around the uplift pile (10);
the exposed parts of the foundation mat layer (20) and the uplift pile (10) are coated with a vibration isolation material layer (30),
a raft foundation (40) covered with uplift piles (10) with cap-shaped restraining ends.
5. The cap-shaped separated latch-type raft foundation vibration isolation uplift pile structure according to claim 4, wherein the vibration isolation material layer (30) is a polyurethane layer.
6. The cap-shaped separated latch-type raft foundation vibration isolation uplift pile structure according to claim 4, wherein the foundation pad layer (20) is formed of a concrete material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110185404.2A CN113006114A (en) | 2021-02-10 | 2021-02-10 | Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110185404.2A CN113006114A (en) | 2021-02-10 | 2021-02-10 | Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113006114A true CN113006114A (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110185404.2A Pending CN113006114A (en) | 2021-02-10 | 2021-02-10 | Cap-shaped separated lock catch type raft foundation vibration isolation uplift pile design process |
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| CN (1) | CN113006114A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158206A (en) * | 1995-12-14 | 1997-06-17 | Geotop Corp | Base isolating structure for structure |
| CN108222079A (en) * | 2017-12-10 | 2018-06-29 | 中国中元国际工程有限公司 | Super long type synchrotron radiation light source basis micro-nano vibration control technology |
| CN108316331A (en) * | 2018-05-03 | 2018-07-24 | 重庆工商职业学院 | A kind of concrete composite pile base |
| CN108677989A (en) * | 2018-06-26 | 2018-10-19 | 延安大学 | A kind of continuous rigid frame bridge base isolation structure |
| CN110158667A (en) * | 2019-03-08 | 2019-08-23 | 北京市劳动保护科学研究所 | A kind of anti-floating vibration insulation structure and building |
| CN110359499A (en) * | 2019-07-05 | 2019-10-22 | 中国中元国际工程有限公司 | A kind of bottom is laid with the raft plate-stake connecting node and its construction method of vibration attenuation pad |
| CN111364495A (en) * | 2020-03-16 | 2020-07-03 | 白城师范学院 | Anti-frost-heaving and anti-seismic composite foundation structure |
-
2021
- 2021-02-10 CN CN202110185404.2A patent/CN113006114A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09158206A (en) * | 1995-12-14 | 1997-06-17 | Geotop Corp | Base isolating structure for structure |
| CN108222079A (en) * | 2017-12-10 | 2018-06-29 | 中国中元国际工程有限公司 | Super long type synchrotron radiation light source basis micro-nano vibration control technology |
| CN108316331A (en) * | 2018-05-03 | 2018-07-24 | 重庆工商职业学院 | A kind of concrete composite pile base |
| CN108677989A (en) * | 2018-06-26 | 2018-10-19 | 延安大学 | A kind of continuous rigid frame bridge base isolation structure |
| CN110158667A (en) * | 2019-03-08 | 2019-08-23 | 北京市劳动保护科学研究所 | A kind of anti-floating vibration insulation structure and building |
| CN110359499A (en) * | 2019-07-05 | 2019-10-22 | 中国中元国际工程有限公司 | A kind of bottom is laid with the raft plate-stake connecting node and its construction method of vibration attenuation pad |
| CN111364495A (en) * | 2020-03-16 | 2020-07-03 | 白城师范学院 | Anti-frost-heaving and anti-seismic composite foundation structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210622 |
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| RJ01 | Rejection of invention patent application after publication |