CN104695292A - Discontinuous vibration damping and isolating device and formation method - Google Patents
Discontinuous vibration damping and isolating device and formation method Download PDFInfo
- Publication number
- CN104695292A CN104695292A CN201510137019.5A CN201510137019A CN104695292A CN 104695292 A CN104695292 A CN 104695292A CN 201510137019 A CN201510137019 A CN 201510137019A CN 104695292 A CN104695292 A CN 104695292A
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- Prior art keywords
- vibration isolation
- vibration
- discontinuous
- bellows
- hole
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- 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
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/14—Vegetation on or around railway-tracks
Abstract
The invention discloses a discontinuous vibration damping and isolating device and a formation method. The discontinuous vibration damping and isolating device comprises two rows of vibration isolating holes, bellows are arranged in the vibration isolating holes, and filler is packed between the bellows and the vibration isolating holes. The formation method includes that the vibration isolating holes are arranged between a protected building and a vibration source and distributed in a staggered manner. The diameter and the depth of the vibration isolating holes are adjusted according to the strength of the vibration source. EPS (expandable polystyrene) fiber mixed light soil is filled between the inner walls of the vibration isolating holes and the bellows can protect stability of the vibration isolating holes. Meanwhile, wave impedance ratio among different medium contact surfaces is increased, and energy of transmitted waves is reduced. In addition, a reinforced concrete sheet can be erected at the tops of the vibration isolating holes and covered with backfill for planting flowers and plants, so that the discontinuous vibration damping and isolating device is economic, environment friendly and efficient. The discontinuous vibration damping and isolating structure can effectively reduce adverse effects on the important protected buildings and precise instruments from traffic load vibration.
Description
Technical field
The present invention relates to a kind of discontinuous and subtract isolation mounting and formation method, belong to industrial vibration control field.
Background technology
In recent years, China railways system raises speed on a large scale, and the perfect paces also accelerating construction of Line for Passenger Transportation or high-speed railway road network, train speed rapidly improves.In the process realizing Leap-forward Development of Railway, original railway relevant design can not adapt to current and one section of railway construction in period demand from now on, and therefore, the traffic vibration ambient influnence studied based on high-speed railway is imminent.
It is very sensitive to the soil body that subway and high-speed railway run the dither produced, and decay is very fast, and the decay of low frequency vibration in soil is slower, propagation distance is farther, influence basin is larger, very large on the working environment impact of high precision instrument in surrounding building, becomes the emphasis subtracting vibration isolation.Therefore, in order to the adverse effect that may cause during alleviating railway operation, at its circuit periphery important area, especially when periphery has Important building or factory building is furnished with precision instrument, should take effectively to subtract vibration isolation means.At present, vibration insulation structure is subtracted continuously and the discontinuous vibration insulation structure that subtracts is the two kinds of forms alleviating the oscillation intensity that the mankind's activity such as building operations, railway and highway communication, industry and explosion causes.About research and the use comparative maturity all of the continuous structure of the forms such as empty ditch, concrete wall, although the vibration isolating effect of continuous structure is more satisfactory, but for low frequency vibration source and weak soil, groundwater table district higher, the construction of continuous structure and maintenance cost are all very high; The restriction then by the degree of depth and area of the discontinuous structure of the form such as round, campshed is less, and has the advantages such as the low and applied range of easy construction, cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of easy construction, good economy performance, the discontinuous with good vibration isolating effect subtract isolation mounting and method, drops to acceptable level to make vibration.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of discontinuous of the present invention subtracts isolation mounting, comprises two rows and is arranged in parallel in treating the vibration isolation hole in vibration isolation material, arrange bellows in described vibration isolation hole, be provided with packing material between described bellows outer wall and described vibration isolation hole inwall.
Described packing material is EPS fibers mixture light soil inserts, it is the slurry be made up of EPS particle, curing compound, raw material soil, fiber and water, to assigned address build shaping by high-pressure pump by Cemented filling through mix and blend, through the light porous material of maintenance; Wherein, raw material soil: select one or several mixing in clay, silt, middle fine sand, flyash, aggregate chips and mud; EPS particle: adopt the granular globule of polystyrene, particle diameter 3mm ~ 5mm, apparent density 15Kg/m
3~ 30Kg/m
3, the volume ratio of EPS packing density of particle and raw material soil: 40:60 ~ 60:40; Curing compound: adopt common slow setting portland cement, described slow setting portland cement quality is selected between 8% ~ 15%; Fiber: adopt modified polypropylene fiber, modified polypropylene fiber quality is not more than 0.5%; Water: quality is selected between 50% ~ 80%.
Clear spacing in same row between adjacent described vibration isolation hole is no more than the aperture in described vibration isolation hole, and the clear spacing between described two row vibration isolation holes is no more than the aperture in described vibration isolation hole.
The caliber of described bellows is no more than the half in aperture, described vibration isolation hole.
The top that described discontinuous subtracts isolation mounting arranges reinforced concrete cover plate backfill and plants flowers and plants.
A kind of formation method that discontinuous subtracts isolation mounting is as follows:
(1) vibration isolation hole adopts direct circulation mud off convolution drilling and forming hole to projected depth, and projected depth is determined according to the intensity of focus and issuable ground wave wavelength, is inserted by bellows in vibration isolation hole; Carry out cast-in-site construction again, first EPS particle, curing compound, raw material soil, fiber and water are made slurry, i.e. packing material, then packing material is pumped between bellows and vibration isolation hole inwall until be full of;
(2) to have constructed all vibration isolation holes after completing the perfusion of packing material, the prefabricated cover plate of rectangle steel reinforced concrete that thickness is no more than 80mm is set up at top, vibration isolation hole, the width of cover plate layout scope and length exceed the distance in aperture, a vibration isolation hole outward flange vibration isolation hole respectively, and the vertical distance in cover plate apex distance earth's surface is no more than 100mm.
The present invention has following beneficial effect:
(1) discontinuous subtracts isolation mounting and adopts two rows to be arranged in parallel and a staggered vibration isolation hole, utilizes the wave impedance ratio between different materials contact surface, reduces transmitted wave energy, thus effectively isolate or weaken the vibration wave propagated on earth's surface.
(2) discontinuous subtracts isolation mounting employing EPS fibers mixture light soil as a packing material, improves the absorption to vibration wave energy, thus reaches the effect subtracting vibration isolation.
(3) adopt bellows and a packing material in the vibration isolation hole that discontinuous subtracts in isolation mounting, the homeostasis subtracting vibration isolation hole can be ensured, thus increase the depth of pore forming of vibration insulation structure.
(4) discontinuous subtracts the hollow cylinder that in isolation mounting, bellows interior is formed, and reduces the consumption of packing material in vibration isolation hole on the one hand, reduces costs; On the other hand, effectively completely cutting off earth's surface vibration wave can be increased.
(5) top that discontinuous subtracts vibration isolation hole in isolation mounting can be set up reinforced concrete cover plate backfill and plant flowers and plants, increases the globality subtracted in vibration insulation structure between each vibration isolation hole on the one hand; On the other hand, the requirement meeting environmental protection is conducive to.
Accompanying drawing explanation
Fig. 1: structural representation of the present invention;
In Fig. 2: Fig. 1 A-A to sectional view
Number in the figure: 1-reinforced concrete cover plate; 2-vibration isolation hole; 3-packing material; 4-bellows; 5 – backfill.
Detailed description of the invention
Below in conjunction with Fig. 1 and Fig. 2 and embodiment isolation mounting is subtracted to discontinuous a kind of in the present invention and formation method is described in further detail.
As depicted in figs. 1 and 2, a kind of discontinuous of the present invention subtracts isolation mounting, comprise two rows to be arranged in parallel in treating the vibration isolation hole 2 in vibration isolation material, in described vibration isolation hole 2, bellows 4 is set, between described bellows outer wall and described vibration isolation hole inwall, be provided with packing material 3.Described packing material is EPS fibers mixture light soil inserts, it is the slurry be made up of EPS particle, curing compound, raw material soil, fiber and water, to assigned address build shaping by high-pressure pump by Cemented filling through mix and blend, through the light porous material of maintenance; Wherein, raw material soil: select one or several mixing in clay, silt, middle fine sand, flyash, aggregate chips and mud; EPS particle: adopt the granular globule of polystyrene, particle diameter 3mm ~ 5mm, apparent density 15Kg/m
3~ 30Kg/m
3, the volume ratio of EPS packing density of particle and raw material soil: 40:60 ~ 60:40; Curing compound: adopt common slow setting portland cement, described slow setting portland cement quality is selected between 8% ~ 15%; Fiber: adopt modified polypropylene fiber, modified polypropylene fiber quality is not more than 0.5%; Water: quality is selected between 50% ~ 80%.Clear spacing in same row between adjacent described vibration isolation hole is no more than the aperture in described vibration isolation hole, and the clear spacing between described two row vibration isolation holes is no more than the aperture in described vibration isolation hole.The caliber of described bellows is no more than the half in aperture, described vibration isolation hole.The top that described discontinuous subtracts isolation mounting arranges reinforced concrete cover plate 1 backfill and plants flowers and plants.
A kind of formation method that discontinuous subtracts isolation mounting is as follows:
(1) vibration isolation hole adopts direct circulation mud off convolution drilling and forming hole to projected depth, and projected depth is determined according to the intensity of focus and issuable ground wave wavelength, is inserted by bellows in vibration isolation hole; Carry out cast-in-site construction again, first EPS particle, curing compound, raw material soil, fiber and water are made slurry, i.e. packing material, then packing material is pumped between bellows and vibration isolation hole inwall until be full of;
(2) to have constructed all vibration isolation holes after completing the perfusion of packing material, the prefabricated cover plate of rectangle steel reinforced concrete that thickness is no more than 80mm is set up at top, vibration isolation hole, the width of cover plate layout scope and length exceed the distance in aperture, a vibration isolation hole outward flange vibration isolation hole respectively, and the vertical distance in cover plate apex distance earth's surface is no more than 100mm.
[embodiment]
In the embodiment of the present invention, discontinuous subtracts vibration insulation structure, comprises the backfill 5 on vibration isolation hole 2, bellows 4, packing material 3, reinforced concrete cover plate 1 and cover plate.Concrete preparation process is as follows:
(1) vibration isolation hole 2 adopts direct circulation mud off to circle round drilling and forming hole to projected depth, and projected depth is determined according to the intensity of focus and issuable ground wave wavelength, is inserted in vibration isolation hole 2 by bellows 4.Carry out cast-in-site construction again, first cement, EPS particle, curing compound, raw material soil, fiber and water are made slurry, i.e. packing material 3, then packing material 3 is pumped between bellows 4 and vibration isolation hole 2 inwall until be full of.
(2) to have constructed all vibration isolation holes after completing the perfusion of packing material, the prefabricated cover plate 1 of rectangle steel reinforced concrete that thickness is no more than 80mm is set up at top, vibration isolation hole, the width of cover plate layout scope and length should exceed the distance in aperture, a vibration isolation hole outward flange vibration isolation hole respectively, the vertical distance in cover plate apex distance earth's surface is no more than 100mm, and cover plate top can backfill 5 plant flowers and plants.
The above-mentioned description to embodiment can understand and apply the invention for the ease of those skilled in the art, person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art are according to announcement of the present invention, and the improvement made for the present invention and amendment all should within protection scope of the present invention.
Claims (6)
1. discontinuous subtracts an isolation mounting, it is characterized in that: comprise two rows and be arranged in parallel in treating the vibration isolation hole in vibration isolation material, arrange bellows in described vibration isolation hole, be provided with packing material between described bellows outer wall and described vibration isolation hole inwall.
2. discontinuous according to claim 1 subtracts isolation mounting, it is characterized in that: described packing material is EPS fibers mixture light soil inserts, it is the slurry be made up of EPS particle, curing compound, raw material soil, fiber and water, to assigned address build shaping by high-pressure pump by Cemented filling through mix and blend, through the light porous material of maintenance; Wherein, raw material soil: select one or several mixing in clay, silt, middle fine sand, flyash, aggregate chips and mud; EPS particle: adopt the granular globule of polystyrene, particle diameter 3mm ~ 5mm, apparent density 15Kg/m
3~ 30Kg/m
3, the volume ratio of EPS packing density of particle and raw material soil: 40:60 ~ 60:40; Curing compound: adopt common slow setting portland cement, described slow setting portland cement quality is selected between 8% ~ 15%; Fiber: adopt modified polypropylene fiber, modified polypropylene fiber quality is not more than 0.5%; Water: quality is selected between 50% ~ 80%.
3. discontinuous according to claim 1 subtracts isolation mounting, it is characterized in that: the clear spacing in same row between adjacent described vibration isolation hole is no more than the aperture in described vibration isolation hole, and the clear spacing between described two row vibration isolation holes is no more than the aperture in described vibration isolation hole.
4. discontinuous according to claim 1 subtracts isolation mounting, it is characterized in that: the caliber of described bellows is no more than the half in aperture, described vibration isolation hole.
5. discontinuous according to claim 1 subtracts isolation mounting, it is characterized in that: the top that described discontinuous subtracts isolation mounting arranges reinforced concrete cover plate backfill and plants flowers and plants.
6. subtract a formation method for isolation mounting based on discontinuous according to claim 1, it is characterized in that described method is as follows:
(1) vibration isolation hole adopts direct circulation mud off convolution drilling and forming hole to projected depth, and projected depth is determined according to the intensity of focus and issuable ground wave wavelength, is inserted by bellows in vibration isolation hole; Carry out cast-in-site construction again, first EPS particle, curing compound, raw material soil, fiber and water are made slurry, i.e. packing material, then packing material is pumped between bellows and vibration isolation hole inwall until be full of;
(2) to have constructed all vibration isolation holes after completing the perfusion of packing material, the prefabricated cover plate of rectangle steel reinforced concrete that thickness is no more than 80mm is set up at top, vibration isolation hole, the width of cover plate layout scope and length exceed the distance in aperture, a vibration isolation hole outward flange vibration isolation hole respectively, and the vertical distance in cover plate apex distance earth's surface is no more than 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137019.5A CN104695292A (en) | 2015-03-26 | 2015-03-26 | Discontinuous vibration damping and isolating device and formation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137019.5A CN104695292A (en) | 2015-03-26 | 2015-03-26 | Discontinuous vibration damping and isolating device and formation method |
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| CN104695292A true CN104695292A (en) | 2015-06-10 |
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| CN201510137019.5A Pending CN104695292A (en) | 2015-03-26 | 2015-03-26 | Discontinuous vibration damping and isolating device and formation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947549A (en) * | 2015-06-25 | 2015-09-30 | 北京交通大学 | Rail vibration reduction ballast bed device |
| CN104947721A (en) * | 2015-06-12 | 2015-09-30 | 广州市地下铁道总公司 | Subway car depot testing line composite vibration-isolation barrier |
| CN107023040A (en) * | 2017-06-02 | 2017-08-08 | 郑州大学 | A kind of flexible hollow wall passive vibration isolation structure |
| CN107556044A (en) * | 2017-09-18 | 2018-01-09 | 南京工业大学 | One kind is board-like to subtract vibration insulation structure and molding method for preparing |
| CN109555166A (en) * | 2018-12-29 | 2019-04-02 | 天津大学 | A kind of Rubber Concrete is coupled inclination Vibration Isolation by Piles in Rows barrier and production method |
| CN110331990A (en) * | 2019-07-29 | 2019-10-15 | 华侨大学 | A kind of isolation structure and method for Tunnel Blasting |
| CN111622270A (en) * | 2019-02-28 | 2020-09-04 | 山东大学 | Foundation dynamic compaction vibration isolation structure and method utilizing retaining wall slurry |
| CN113216279A (en) * | 2021-05-26 | 2021-08-06 | 华东交通大学 | Horizontal hollow pipe landfill vibration isolation barrier and construction process thereof |
| CN114278307A (en) * | 2021-11-02 | 2022-04-05 | 台州市市政公用工程质量安全事务中心 | Tunnel construction method capable of reducing seismic damage |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947721A (en) * | 2015-06-12 | 2015-09-30 | 广州市地下铁道总公司 | Subway car depot testing line composite vibration-isolation barrier |
| CN104947721B (en) * | 2015-06-12 | 2017-01-18 | 广州地铁集团有限公司 | Subway car depot testing line composite vibration-isolation barrier |
| CN104947549A (en) * | 2015-06-25 | 2015-09-30 | 北京交通大学 | Rail vibration reduction ballast bed device |
| CN107023040A (en) * | 2017-06-02 | 2017-08-08 | 郑州大学 | A kind of flexible hollow wall passive vibration isolation structure |
| CN107556044A (en) * | 2017-09-18 | 2018-01-09 | 南京工业大学 | One kind is board-like to subtract vibration insulation structure and molding method for preparing |
| CN109555166A (en) * | 2018-12-29 | 2019-04-02 | 天津大学 | A kind of Rubber Concrete is coupled inclination Vibration Isolation by Piles in Rows barrier and production method |
| CN109555166B (en) * | 2018-12-29 | 2024-03-29 | 天津大学 | Rubber aggregate concrete coupling inclined row pile vibration isolation barrier and manufacturing method thereof |
| CN111622270A (en) * | 2019-02-28 | 2020-09-04 | 山东大学 | Foundation dynamic compaction vibration isolation structure and method utilizing retaining wall slurry |
| CN110331990A (en) * | 2019-07-29 | 2019-10-15 | 华侨大学 | A kind of isolation structure and method for Tunnel Blasting |
| CN113216279A (en) * | 2021-05-26 | 2021-08-06 | 华东交通大学 | Horizontal hollow pipe landfill vibration isolation barrier and construction process thereof |
| CN113216279B (en) * | 2021-05-26 | 2022-12-13 | 华东交通大学 | Horizontal hollow pipe landfill vibration isolation barrier and construction process thereof |
| CN114278307A (en) * | 2021-11-02 | 2022-04-05 | 台州市市政公用工程质量安全事务中心 | Tunnel construction method capable of reducing seismic damage |
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Application publication date: 20150610 |
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