CN221072578U - Combined vibration isolation row pile - Google Patents
Combined vibration isolation row pile Download PDFInfo
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- CN221072578U CN221072578U CN202322329554.3U CN202322329554U CN221072578U CN 221072578 U CN221072578 U CN 221072578U CN 202322329554 U CN202322329554 U CN 202322329554U CN 221072578 U CN221072578 U CN 221072578U
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- 238000002955 isolation Methods 0.000 title claims abstract description 59
- 239000002689 soil Substances 0.000 claims description 22
- 238000007596 consolidation process Methods 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 8
- 239000011083 cement mortar Substances 0.000 claims description 6
- 239000011381 foam concrete Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model provides a combined vibration isolation row pile which comprises at least one row of isolation pile groups buried between a vibration source and a target building, wherein each row of isolation pile groups is internally provided with a plurality of isolation piles which are uniformly distributed along the arrangement extension direction at intervals, each two adjacent isolation piles are provided with intervals, the outer sides of the isolation piles are provided with outer wrapping concretions, each isolation pile comprises a pile tip, a pile cylinder is coaxially sleeved on the pile tip, an end cover is detachably covered on the pile cylinder, and the pile tips and the pile cylinders are welded and fixed. The vibration waves are reflected, scattered and diffracted at different interfaces, are blocked, dissipated and filtered layer by layer to different degrees, and finally achieve the purpose of vibration isolation.
Description
Technical Field
The utility model relates to the field of vibration reduction and isolation of foundation engineering, in particular to a combined vibration isolation row pile.
Background
To date, subways become an extremely important part in large-scale urban transportation by virtue of large transportation capacity, punctual time, no occupation of excessive ground space and no blockage. In the subway running process, vibration is generated due to the reasons of mechanical running, uneven wheel tracks, height difference of inner and outer tracks, large friction during turning and the like. In some earlier designed subways, this vibration can only be handled with post-isolation measures. For this reason, many scholars have conducted related studies.
The field of civil engineering is mainly concerned with vibration isolation measures in the rock and soil, for which purpose barriers in different positions can be provided, from the vibration source, to isolate vibrations during propagation or to isolate vibrations at protected buildings. From the location where the vibration isolation barrier is located, a learner will refer to active vibration isolation at the vibration source and passive vibration isolation at the protected building. And if classified according to the type of barrier, may be classified into a continuous barrier and a discontinuous barrier. Wherein the continuous barrier is an empty ditch, a filling ditch, an underground continuous wall and the like, and is an integral body without other materials inside. The discontinuous barrier is in the form of single row of holes, multiple rows of empty rows, piles, periodic piles, etc.
However, the existing vibration isolation measures have some problems. The application range of the air ditch vibration isolation is smaller, and if the soil is loose, the water content is high, and the wall standing property is poor, the air ditch is difficult to keep for a long time. Filling ditches and connecting walls has the problems of more materials and high manufacturing cost. The vibration isolation effects of the row piles, the periodic row piles and the hole columns are greatly influenced by the clear distance between piles and the pile length, reasonable design is needed, otherwise, the vibration isolation area at the rear side of the row piles is small, the integrity is poor, and the vibration isolation effect is not ideal. And because the subways are built in the core zone of the city, the buildings along the lines are dense, and large-scale construction is difficult to carry out.
Disclosure of utility model
The utility model aims to provide a combined vibration isolation row pile, which is used for solving the problems of low construction efficiency and substandard vibration isolation effect of vibration isolation measures in the prior art.
The technical scheme of the combined vibration isolation row pile is realized as follows:
The combined vibration isolation row pile comprises at least one row of pile groups buried between a vibration source and a target building, wherein each row of pile group is internally provided with a plurality of pipe piles uniformly distributed along the arrangement extending direction at intervals, each two adjacent pipe piles are provided with a space, the outer sides of the pipe piles are provided with an outer wrapping consolidation body, each pipe pile comprises a pile tip, a pile barrel is coaxially sleeved on each pile tip, an end cover is detachably covered on each pile barrel, and each pile tip and each pile barrel are welded and fixed.
Further, the pile cylinder comprises an inner ring cylinder and an outer ring cylinder which are coaxially nested and fixed at the top of the pile tip, annular intervals are arranged in the inner ring cylinder and the outer ring cylinder, and vibration reduction structures are arranged in the annular intervals; and a positioning structure which extends up and down and is matched with the end cover in a positioning way is further arranged in the annular space.
Further, the vibration reduction structure is a polygonal cylinder filled in the annular space, and the side wall of the polygonal cylinder is provided with an uneven vibration isolation surface; the positioning structure is a guide rod which is inserted between two adjacent side walls of the polygonal cylinder in a guiding way, and a positioning hole which is in insertion fit with the guide rod is formed at the bottom of the end cover.
Furthermore, the top of the annular space is fixedly pressed with a positioning ring piece, and the positioning ring piece is provided with a transition hole which is assembled with the positioning rod in a guiding way.
Further, the cross section of the polygonal cylinder is zigzag.
Further, the outer wrapping consolidation body is one of a cement soil filling body, a rubber concrete filling body, a foam concrete filling body or cement mortar, and the pipe pile is a PHC pipe pile.
Further, the outer wrapping consolidation body is a cement soil filling body, and the pipe pile is one of a prefabricated rubber concrete pipe pile, a prefabricated foam concrete pipe pile or a prefabricated cement mortar pipe pile.
Further, when the vibration source frequency is 10-80 Hz; the depth of the pipe piles is 2-16m, the thickness of the vibration isolation row piles is 0.4-3.2m, the inner diameter of the pipe piles is 0.3-2.4m, the distance between the pipe piles is 0.2-1.6m, and the vibration isolation row piles and the vibration source frequency are in inverse proportion.
By adopting the technical scheme, the utility model has the beneficial effects that: compared with the prior art, the combined vibration isolation row pile has the advantages that the outside wrapping consolidation body is firstly constructed in the construction process, and then the pipe pile is implanted, so that the outside wrapping consolidation body and the outside wrapping consolidation body can be tightly combined. The tubular pile bottom is equipped with the stake point, and the top is equipped with the apron, and the tubular pile cavity can effectively avoid external steam to get into in the cavity, can guarantee simultaneously that the tubular pile gets into smoothly in the outer wrapping consolidation body, and can make the tubular pile stable positioning. In the process of transmitting the wave generated by subway vibration to a target building, the wave can be transmitted to the target building only after passing through soil, cement soil, concrete, air, concrete, cement soil and soil. In the propagation process, vibration waves are reflected, scattered and diffracted at different interfaces, are blocked, dissipated and filtered layer by layer to different degrees, and finally achieve the purpose of vibration isolation. The design of the pile tip can increase the smoothness of the whole pipe pile inserting process, and effectively improve the construction efficiency; and the outer surface of the integral tubular pile is a straight tubular pile, so that the laminating performance of the integral tubular pile and the outer wrapping consolidation body is tighter.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of a combined vibration isolation row pile of the present utility model;
FIG. 2 is a perspective view of the PHC pile of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic illustration of FIG. 2 with the end cap removed;
fig. 5 is a top view of fig. 4.
Reference numerals illustrate: 1-vibration source 1; 2-vibration isolation row piles 2; 3-target building 3; 4-a cement soil filling body 4;5-PHC pipe piles 5; 6-pile tip 6; 7-pile barrels 7; 8-end caps 8; 9-an inner ring barrel 9; 10-an outer ring barrel 10; 11-circumferential spacing 11; 12-positioning rod 12; 13-polygonal cylinder 13; 14-positioning holes 14; 15-positioning ring piece 15.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiments of the utility model: as shown in the figure, the combined vibration isolation row pile is used for being buried between a vibration source 1 and a target building 3 and comprises an outer wrapping consolidation body and tubular piles, specifically, the combined vibration isolation row pile comprises at least one row of pile groups buried between the vibration source 1 and the target building 3, each row of pile group is internally provided with a plurality of tubular piles uniformly distributed along the arrangement extension direction at intervals, the space between two adjacent tubular piles is reserved, the outer wrapping consolidation body is arranged outside each tubular pile, each tubular pile comprises a pile tip 6, a pile barrel 7 is coaxially sleeved on each pile tip 6, an end cover 8 is detachably covered on each pile barrel 7, and each pile tip 6 is welded and fixed with each pile barrel 7. In the embodiment, the outer wrapping consolidation body is formed by adopting a cement soil filling body 4; the pipe pile is formed by PHC pipe piles 5, and a cavity is formed in the pipe pile.
In actual use, in the process that the vibration wave emitted by the subway vibration source 1 is transmitted to the target vibration reduction building through the continuous combined vibration isolation row piles 2, a great amount of the wave needs to be transmitted through the process of soil, cement soil, concrete, air, concrete, cement soil and soil. During this propagation, when the vibration wave is transmitted from the previous medium to the next medium, a considerable proportion of the wave is blocked and weakened due to reflection, diffraction and scattering phenomena, so that vibration isolation is realized on one side of the target vibration reduction building. The vibration wave has larger loss when propagating among materials with large difference, and the utility model internally contains various materials, thereby playing an obvious role in weakening the vibration wave. Especially, the internal cavity of the tubular pile well utilizes the characteristic that the propagation quality of vibration waves in gas is worse than that of vibration waves in solid, and effectively realizes the blocking of vibration waves. The utility model integrates the characteristics of good effect of the traditional continuous vibration isolation row pile 2 and strong applicability of the discontinuous vibration isolation row pile 2. The vibration isolation effect is obvious, the applicability is strong, and the row piles with smaller sizes can play a larger role relatively, so that the vibration isolation device can be more conveniently and rapidly constructed and laid in urban dense areas under the condition of low disturbance.
In the pipe pile construction process, the related size of the row piles should be determined according to the frequency of the vibration source 1. If the frequency of the vibration source 1 is 10-80 Hz, the pile depth is 16-2 m, the pile thickness is 3.2-0.4 m, the pile diameter of the inner pile is 2.4-0.3 m, the clear distance between piles is 1.6-0.2 m, and each controllable variable value is inversely proportional to the frequency of the vibration source 1. After the corresponding size is designed, the PHC pipe pile 5 can be selected or poured. After the PHC pile 5 is prepared, the pile tip 68 should be welded at a bottom predetermined position.
And then earth excavation is carried out at a preset position, soil can be excavated by adopting a CSM double-wheel milling method, cement slurry is synchronously injected, and cement soil is prepared in situ. And the pile tip 6 is hung downwards by a crane to a preset position, and then the cover plate is placed on the pile top, and the position of the pile is fixed. And after the cement soil is solidified, the pile-cement soil wall combined vibration isolation row pile 2 is manufactured.
Preferably, in order to further ensure the vibration isolation effect, the tubular pile comprises an inner ring barrel 9 and an outer ring barrel 10 which are coaxially nested and fixed at the top of the pile tip 6, the inner ring barrel 9 and the outer ring barrel 10 are internally provided with annular spaces 11, and vibration reduction structures are arranged in the annular spaces 11; and a positioning structure which extends up and down and is matched with the end cover 8 in a positioning way is also arranged in the annular space 11. In this embodiment, the vibration damping structure is a polygonal cylinder 13 filled in the circumferential space 11, and the side wall of the polygonal cylinder 13 has an uneven vibration isolation surface; the positioning structure is a guide rod which is inserted between two adjacent side walls of the polygonal cylinder 13 in a guiding way, and the bottom of the end cover 8 is provided with a positioning hole 14 which is in inserted fit with the guide rod. A positioning ring piece 15 is fixedly pressed on the top of the annular space 11, and a transition hole which is assembled with the positioning rod 12 in a guiding way is formed in the positioning ring piece 15.
Through setting up of locating lever 12, locating ring piece 15, can be with locating lever 12 steady rest in annular interval 11, guarantee locating lever 12's location supporting stability, the setting of locating the change piece simultaneously can play fine anti-deviation effect to locating lever 12, can carry out further location to end cover 8, effectively prevent in external steam dust gets into the cavity, influences vibration isolation effect.
Effectively, the cross section of the polygonal cylinder 13 is zigzag, so that the wave propagation generated by the vibration source 1 can be effectively absorbed, scattered or refracted, and the vibration isolation purpose is achieved.
Of course, in this embodiment, the outer wrapping consolidation body is a cement soil filling body 4, and the pipe pile is a PHC pipe pile 5; in other embodiments, the outer wrapping consolidation body may be one of a rubber concrete filling body, a foam concrete filling body or cement mortar.
In other embodiments, the outer casing consolidation body is a cement-soil filling body 4, and the pipe pile can be designed as one of a precast rubber concrete pipe pile, a precast foam concrete pipe pile or a precast cement mortar pipe pile.
In other embodiments, the vibration isolation structure may be designed as an uneven wall surface arranged in the circumferential space 11, and may be formed by the side wall of the inner ring cylinder 9 or the outer ring cylinder 10.
In other embodiments, the positioning structure may be designed as a hole-type structure arranged on the top end of the outer ring barrel 10 or the inner ring barrel 9, and the positioning posts are correspondingly designed on the end cover 8.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The combined vibration isolation row pile comprises at least one row of pile groups buried between a vibration source and a target building, wherein each row of pile group is internally provided with a plurality of pipe piles uniformly distributed along the arrangement extending direction at intervals, the space is reserved between two adjacent pipe piles, and the outer sides of the pipe piles are provided with wrapping consolidation bodies.
2. The combined vibration isolation row pile according to claim 1, wherein the pile barrel comprises an inner ring barrel and an outer ring barrel which are coaxially nested with each other and fixed at the top of the pile tip, the inner ring barrel and the outer ring barrel are internally provided with annular spaces, and vibration reduction structures are arranged in the annular spaces; and a positioning structure which extends up and down and is matched with the end cover in a positioning way is further arranged in the annular space.
3. The combined vibration isolation row pile according to claim 2, wherein the vibration reduction structure is a polygonal cylinder filled in the circumferential space, and the side wall of the polygonal cylinder is provided with an uneven vibration isolation surface; the positioning structure is a guide rod which is inserted between two adjacent side walls of the polygonal cylinder in a guiding way, and a positioning hole which is in insertion fit with the guide rod is formed at the bottom of the end cover.
4. The combined vibration isolation row pile according to claim 3, wherein the top of the annular space is fixedly provided with a positioning ring sheet in a pressing manner, and the positioning ring sheet is provided with a transition hole for guiding and assembling with a positioning rod.
5. A combined vibration isolation row pile according to claim 3, characterised in that the polygonal cylinder is saw-tooth in cross section.
6. The combined vibration isolation row pile according to any one of claims 1 to 5, wherein the outer wrapping consolidation body is one of a cement soil filling body, a rubber concrete filling body, a foam concrete filling body or cement mortar, and the pipe pile is a PHC pipe pile.
7. The combined vibration isolation row pile according to any one of claims 1 to 5, wherein the outer wrapping consolidation body is a soil cement filling body, and the pile is one of a precast rubber concrete pile, a precast foam concrete pile or a precast cement mortar pile.
8. The combined vibration isolation row pile according to any one of claims 1 to 5, wherein the vibration source frequency is 10 to 80 Hz; the depth of the pipe piles is 2-16m, the thickness of the vibration isolation row piles is 0.4-3.2m, the inner diameter of the pipe piles is 0.3-2.4m, the distance between the pipe piles is 0.2-1.6m, and the vibration isolation row piles and the vibration source frequency are in inverse proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322329554.3U CN221072578U (en) | 2023-08-29 | 2023-08-29 | Combined vibration isolation row pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322329554.3U CN221072578U (en) | 2023-08-29 | 2023-08-29 | Combined vibration isolation row pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221072578U true CN221072578U (en) | 2024-06-04 |
Family
ID=91257175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322329554.3U Active CN221072578U (en) | 2023-08-29 | 2023-08-29 | Combined vibration isolation row pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221072578U (en) |
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2023
- 2023-08-29 CN CN202322329554.3U patent/CN221072578U/en active Active
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