CN109629556A - A kind of bridge pier variable cross-section vibration isolation pile foundation and its construction method - Google Patents
A kind of bridge pier variable cross-section vibration isolation pile foundation and its construction method Download PDFInfo
- Publication number
- CN109629556A CN109629556A CN201910068362.7A CN201910068362A CN109629556A CN 109629556 A CN109629556 A CN 109629556A CN 201910068362 A CN201910068362 A CN 201910068362A CN 109629556 A CN109629556 A CN 109629556A
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- China
- Prior art keywords
- corrugated steel
- concrete
- layer
- bridge pier
- vibration isolation
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
Abstract
The invention discloses a kind of bridge pier variable cross-section vibration isolation pile foundation and its construction methods, the upper segment that the piling bar periphery is set is gone along with sb. to guard him including piling bar and successively from top to bottom, intermediate section, lower part segment, the upper segment is followed successively by three layers of vibration insulation from the inside to the outside, first concrete layer, first corrugated steel, first concrete guard wall, the intermediate section is followed successively by one layer of vibration insulation from the inside to the outside, second concrete layer, second corrugated steel, second concrete guard wall, the lower part segment is followed successively by third concrete layer from the inside to the outside, third corrugated steel, third concrete guard wall, it closes the bottom of the lower part segment.The invention has the advantages that it is easy for construction, reduce the cost of bridge pier；The single pile structure type of bridge pier is simple, and Path of Force Transfer is clear, and the displacement vibration of stake top is adapted with by upper to small diminishing moment of flexure characteristic；When vibration insulation will vibrate the diffusion of wave direction surrounding soil, partial vibration energy is consumed.
Description
Technical field
The invention belongs to Bridge Pile body construction technical fields, and in particular to a kind of bridge pier variable cross-section vibration isolation pile foundation and its apply
Work method.
Background technique
With the development of bridge facility, the structure and construction environment of bridge become increasingly complex, thus, to the steady of bridge pile body
It is qualitative to propose more stringent requirement.Existing pier footing is usually to be filled by armored concrete, above structure bottom
Resistance to shock it is poor, bridge superstructure shake when, bridge pier is difficult to provide enough damping forces, so as to cause bridge stability
Property reduce.
Summary of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of bridge pier variable cross-section vibration isolation pile foundations
And its construction method, by the way that the supporting construction of three layers of variable cross-section is arranged in piling bar bottom, and vibration insulation is added in supporting construction,
So that pile foundation has resistance to shock.
The object of the invention realization is completed by following technical scheme:
A kind of bridge pier variable cross-section vibration isolation pile foundation, which is characterized in that go along with sb. to guard him including piling bar and successively and be arranged in institute from top to bottom
State upper segment, the intermediate section, lower part segment of piling bar periphery, the upper segment be followed successively by from the inside to the outside three layers of vibration insulation,
First concrete layer, the first corrugated steel, the first concrete guard wall, the intermediate section be followed successively by from the inside to the outside one layer of vibration insulation,
Second concrete layer, the second corrugated steel, the second concrete guard wall, the lower part segment are followed successively by third concrete from the inside to the outside
Layer, third corrugated steel, third concrete guard wall, the bottom closing of the lower part segment.
The vibration insulation includes the concrete layer of inside and the high-damping rubber layer in outside.
Suspension roof support is provided with outside the intermediate section, the suspension roof support includes multiple horizontally disposed anchor poles, institute
The one end for stating anchor pole is horizontally inserted into the soil body, and the other end is connected on second concrete guard wall.
The anchor pole is annularly arranged in the second concrete guard wall periphery at various height.
The upper segment, the intermediate section, the lower part segment are ring structure.
It is a kind of to be related to the construction method of any bridge pier variable cross-section vibration isolation pile foundation, which is characterized in that the work
Method after measuring the following steps are included: determine construction location；Stake holes is excavated according to the construction location, it is corresponding in upper segment
The hole wall of depth is implanted into the first corrugated steel, fills the first concrete guard wall between the soil body and first corrugated steel；In
The hole wall that portion segment corresponds to depth is implanted into the second corrugated steel, and it is mixed that second is filled between the soil body and second corrugated steel
Solidifying soil retaining wall；It is implanted into third corrugated steel in the hole wall that lower part segment corresponds to depth, in the soil body and the third corrugated steel
Between fill third concrete guard wall；The first concrete layer and three layers of vibration insulation are successively filled on the inside of first corrugated steel,
The second concrete layer and one layer of vibration insulation are successively filled on the inside of second corrugated steel, on the inside of the third corrugated steel
Fill third concrete layer；It is put into piling bar and backfills the stake holes.
Before being implanted into second corrugated steel, suspension roof support is set up in the intermediate section depth, and is filling described the
When two concrete guard walls, the anchor pole end of the suspension roof support is fixed in second concrete guard wall.
The invention has the advantages that (1) is easy for construction, speed of application is fast, substantially saves reinforcing bar and concrete material, reduces
The cost of bridge pier；(2) the single pile structure type of bridge pier is simple, and Path of Force Transfer is clear, the displacement vibration of stake top with by it is upper to it is small by
Tapered small moment of flexure characteristic is adapted；(3) when vibration insulation will vibrate the diffusion of wave direction surrounding soil, partial vibration energy is consumed.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of bridge pier variable cross-section vibration isolation pile foundation in the embodiment of the present invention.
Specific embodiment
Feature of the invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, with
Convenient for the understanding of technical staff of the same trade:
As shown in Figure 1, respectively label is respectively as follows: piling bar 1, upper segment 2, intermediate section 3, lower part segment 4, the first concrete in figure
The 5, first corrugated steel 6 of layer, the first concrete guard wall 7, the second concrete layer 8, the second corrugated steel 9, the second concrete guard wall 10, the
Three concrete layers 11, third corrugated steel 12, third concrete guard wall 13, concrete layer 14, high-damping rubber layer 15, anchor pole 16.
Embodiment: as shown in Figure 1, the present embodiment is specifically related to a kind of bridge pier variable cross-section vibration isolation pile foundation and its construction party
Method by the way that the supporting construction of three layers of variable cross-section is arranged in 1 bottom of piling bar, and adds vibration insulation, so that pile foundation in supporting construction
Plinth has resistance to shock.
As shown in Figure 1, the bridge pier variable cross-section vibration isolation pile foundation in the present embodiment, including piling bar 1 and from top to bottom successively
The upper segment 2 that 1 periphery of piling bar is set, intermediate section 3, lower part segment 4 are gone along with sb. to guard him, upper segment 2 is followed successively by three from the inside to the outside
Layer vibration insulation, the first concrete layer 5, the first corrugated steel 6, the first concrete guard wall 7, intermediate section 3 are followed successively by one from the inside to the outside
Layer vibration insulation, the second concrete layer 8, the second corrugated steel 9, the second concrete guard wall 10, lower part segment 4 are followed successively by the from the inside to the outside
Three concrete layers 11, third corrugated steel 12, third concrete guard wall 13, the bottom closing of lower part segment 4.Upper segment 2, middle part
Segment 3, lower part segment 4 are ring structure.Upper segment 2 to 4 cross-sectional area of lower part segment gradually reduces, and is formed by upper to small
Diminishing moment of flexure characteristic.Since the maximum displacement of pile foundation occurs in stake top, and maximal bending moment also occurs when stake top fixation
In stake top, the pile foundation structure of above-mentioned variable cross-section has also adapted to stake top to the moment of flexure characteristic at stake bottom.Due to bridge vibration on to
One layer of vibration insulation of three layers of vibration insulation and intermediate section 3 is arranged by upper segment 2 for lower transmitting, so that around vibration wave direction
When the soil body is spread, there is two-part energy consumption.
As shown in Figure 1, every layer of vibration insulation includes the concrete layer 14 of inside and the high-damping rubber in outside in the present embodiment
Layer 15.Catadioptric of the bridge vibration bring vibration wave on the different medium surface of vibration insulation decays, in high-damping rubber
There are the effects of damping energy dissipation.Upper segment 2 is followed successively by concrete layer 14, high-damping rubber layer 15, concrete layer from the inside to the outside
14, high-damping rubber layer 15, concrete layer 14, high-damping rubber layer 15, concrete layer 14, corrugated steel, concrete guard wall；Middle part
Segment 3 is followed successively by concrete layer 14, high-damping rubber layer 15, concrete layer 14, corrugated steel, concrete guard wall from the inside to the outside；Under
Portion segment 4 is followed successively by concrete layer 14, corrugated steel, concrete guard wall from the inside to the outside.
As shown in Figure 1, being provided with suspension roof support outside intermediate section 3 in the present embodiment, suspension roof support includes multiple levels
The anchor pole 16 of setting, one end of anchor pole 16 are horizontally inserted into the soil body, and the other end is connected on the second concrete guard wall 10.Anchor pole 16 exists
Different height is annularly arranged in 10 periphery of the second concrete guard wall.Suspension roof support can reinforce the stability of intermediate section 3,
3 size anticlimax bring unstability of upper segment 2 and intermediate section can effectively be avoided.
As shown in Figure 1, the construction method of the bridge pier variable cross-section vibration isolation pile foundation in the present embodiment, comprising the following steps: warp
Determine that construction location, construction location are made of the edge line of stake axis and excavated section after measurement.Stake is excavated according to construction location
Hole excavates and uses drilling and blasting method, from top to bottom segmented progresss variable cross-section excavation, successively excavation upper segment 2, intermediate section 3, under
Portion segment 4.It is implanted into the first corrugated steel 6 in the hole wall of the corresponding depth of upper segment 2, is filled out between the soil body and the first corrugated steel 6
Build the first concrete guard wall 7；It is implanted into the second corrugated steel 9 in the hole wall of the corresponding depth of intermediate section 3, in the soil body and the second ripple
The second concrete guard wall 10 is filled between steel 9；The first concrete layer 5 and three layers of vibration isolation are successively filled in 6 inside of the first corrugated steel
Layer successively fills the second concrete layer 8 and one layer of vibration insulation in 9 inside of the second corrugated steel, fills on the inside of third corrugated steel 12
Third concrete layer 11；It is put into piling bar 1 and backfills stake holes.Before being implanted into the second corrugated steel 9, anchor is set up in 3 depth of intermediate section
Bar supporting, and when filling the second concrete guard wall 10, the anchor pole end of suspension roof support is fixed in the second concrete guard wall.
The present embodiment has the advantages that easy for construction, and speed of application is fast, substantially saves reinforcing bar and concrete material, drop
The low cost of bridge pier；The single pile structure type of bridge pier is simple, and Path of Force Transfer is clear, the displacement vibration of stake top with by it is upper to it is small by
Tapered small moment of flexure characteristic is adapted；When vibration insulation will vibrate the diffusion of wave direction surrounding soil, partial vibration energy is consumed.
Claims (7)
1. a kind of bridge pier variable cross-section vibration isolation pile foundation, which is characterized in that go along with sb. to guard him including piling bar and successively setting from top to bottom and exist
The upper segment of the piling bar periphery, intermediate section, lower part segment, the upper segment are followed successively by three layers of vibration isolation from the inside to the outside
Layer, the first concrete layer, the first corrugated steel, the first concrete guard wall, the intermediate section are followed successively by one layer of vibration isolation from the inside to the outside
Layer, the second concrete layer, the second corrugated steel, the second concrete guard wall, the lower part segment are followed successively by third coagulation from the inside to the outside
Soil layer, third corrugated steel, third concrete guard wall, the bottom closing of the lower part segment.
2. a kind of bridge pier variable cross-section vibration isolation pile foundation according to claim 1, which is characterized in that the vibration insulation includes interior
The concrete layer of side and the high-damping rubber layer in outside.
3. a kind of bridge pier variable cross-section vibration isolation pile foundation according to claim 1, which is characterized in that outside the intermediate section
It is provided with suspension roof support, the suspension roof support includes multiple horizontally disposed anchor poles, and one end of the anchor pole is horizontally inserted into the soil body,
The other end is connected on second concrete guard wall.
4. a kind of bridge pier variable cross-section vibration isolation pile foundation according to claim 3, which is characterized in that the anchor pole is different
Height is annularly arranged in the second concrete guard wall periphery.
5. a kind of bridge pier variable cross-section vibration isolation pile foundation according to claim 1, which is characterized in that the upper segment, institute
State intermediate section, the lower part segment is ring structure.
6. a kind of be related to the construction method of bridge pier variable cross-section vibration isolation pile foundation as claimed in any one of claims 1 to 5, feature exists
In the working method after measuring the following steps are included: determine construction location；Stake holes is excavated according to the construction location,
The hole wall that upper segment corresponds to depth is implanted into the first corrugated steel, fills the first coagulation between the soil body and first corrugated steel
Native retaining wall；Be implanted into the second corrugated steel in the hole wall that intermediate section corresponds to depth, the soil body and second corrugated steel it
Between fill the second concrete guard wall；It is implanted into third corrugated steel in the hole wall that lower part segment corresponds to depth, in the soil body and institute
It states and fills third concrete guard wall between third corrugated steel；Successively filled on the inside of first corrugated steel the first concrete layer and
Three layers of vibration insulation successively fill the second concrete layer and one layer of vibration insulation on the inside of second corrugated steel, described
Third concrete layer is filled on the inside of three corrugated steels；It is put into piling bar and backfills the stake holes.
7. a kind of construction method of bridge pier variable cross-section vibration isolation pile foundation according to claim 6, which is characterized in that be implanted into
Before second corrugated steel, suspension roof support is set up in the intermediate section depth, and when filling second concrete guard wall,
The anchor pole end of the suspension roof support is fixed in second concrete guard wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068362.7A CN109629556B (en) | 2019-01-24 | 2019-01-24 | Pier variable cross-section vibration isolation pile foundation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910068362.7A CN109629556B (en) | 2019-01-24 | 2019-01-24 | Pier variable cross-section vibration isolation pile foundation and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109629556A true CN109629556A (en) | 2019-04-16 |
| CN109629556B CN109629556B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910068362.7A Active CN109629556B (en) | 2019-01-24 | 2019-01-24 | Pier variable cross-section vibration isolation pile foundation and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731854A (en) * | 2020-02-12 | 2021-04-30 | 王利民 | Bridge construction monitoring system and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007023626A (en) * | 2005-07-19 | 2007-02-01 | Nippon Sharyo Seizo Kaisha Ltd | Vibration-controlled base-isolated structure |
| CN202247965U (en) * | 2011-09-15 | 2012-05-30 | 姚燕明 | Vibration isolation unit between metro depot and pillar bottom bearing platform |
| CN107642040A (en) * | 2017-08-17 | 2018-01-30 | 华东交通大学 | The construction method heavy stone used as an anchor of the hollow clump of piles anchorage of super-large diameter |
-
2019
- 2019-01-24 CN CN201910068362.7A patent/CN109629556B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007023626A (en) * | 2005-07-19 | 2007-02-01 | Nippon Sharyo Seizo Kaisha Ltd | Vibration-controlled base-isolated structure |
| CN202247965U (en) * | 2011-09-15 | 2012-05-30 | 姚燕明 | Vibration isolation unit between metro depot and pillar bottom bearing platform |
| CN107642040A (en) * | 2017-08-17 | 2018-01-30 | 华东交通大学 | The construction method heavy stone used as an anchor of the hollow clump of piles anchorage of super-large diameter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112731854A (en) * | 2020-02-12 | 2021-04-30 | 王利民 | Bridge construction monitoring system and using method thereof |
| CN112731854B (en) * | 2020-02-12 | 2023-04-14 | 江西省嘉和工程咨询监理有限公司 | Bridge construction monitoring system |
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| Publication number | Publication date |
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| CN109629556B (en) | 2023-10-27 |
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