CN104847384A - Vibration and noise reduction method for subway intersectional tunnels - Google Patents
Vibration and noise reduction method for subway intersectional tunnels Download PDFInfo
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- CN104847384A CN104847384A CN201510280764.5A CN201510280764A CN104847384A CN 104847384 A CN104847384 A CN 104847384A CN 201510280764 A CN201510280764 A CN 201510280764A CN 104847384 A CN104847384 A CN 104847384A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000009467 reduction Effects 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000013016 damping Methods 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 230000035945 sensitivity Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 1
- 239000011386 rubberized concrete Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 12
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- -1 Admixture Substances 0.000 description 1
- 241001669679 Eleotris Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention belongs to the field of vibration and noise reduction for rail transit and relates to a vibration and noise reduction method for subway intersectional tunnels. Vibration and noise reductive material is disposed on the inner side of a segment, and vibration and noise reductive slurry is injected outside the segment; the inner side of the segment refers to an area above a track bed elevation line, with the length along a running direction of a subway being twice as great as that of a sensitive building; the vibration and noise reductive material on the inner side of the segment refers to rubberized concrete, 3 to 5cm in thickness; the outer side of the segment refers to an area below the track bed elevation line, with the length along the running direction of the subway being twice as great as that of the sensitive building; the vibration and noise reductive slurry serves as vibration and noise reductive material for use on the outer side of the segment and is 3 to 8cm in thickness. The method has the advantages that by increasing damping coefficient of the segment, a propagation path of vibration wave is blocked, and the influence of vibration upon the surrounding environment is effectively reduced; the materials for use are waste materials for recycling, environment protection and economy are achieved, and the cost is low; the construction process is simple.
Description
Technical field
The invention belongs to track traffic vibration and noise reducing field, relate to a kind of method for subway sectional tunnel vibration and noise reducing.
Background technology
Urban track traffic is a kind of large conveying quantity, safety, quick, punctual, convenient, the comfortable desirable vehicles, and there is low energy consumption, of low pollution, safety, the function such as comfortable, in solution urban transport problems, there is special importance and functions, there are 38 cities to approve the construction of city underground project at home at present, estimate will drop into about 2.5 trillion yuan RMB in Urban Subway Project Construction to the year two thousand twenty from now on.Continuation hurricane also pushes ahead vigorously by subway construction.
On the other hand, along with growth in the living standard, people are more and more stricter as compared with the past to the requirement of quality of life, the ambient vibration problem that fast-developing track traffic causes, the own kickback through causing the public.This is mainly because the subway line business district, scenic spot and scientific and technological park etc. of standing in great numbers frequently by the dense district of the stream of people in city, building, its top or close region are likely just residential building, precision instrument room, ancient architecture group etc. to vibration & noise than more sensitive area, when subway train operation, building or resident will be subject to ground caused by it or the vibration on earth's surface and the impact of noise, and in building, resident and instrument also can be subject to the impact of secondary vibration and quadratic noise.Especially the vibration & noise ambient influnence produced after subway becomes net will rise and become a kind of very important public hazards, and this impact reaches 20 hours every day, annual 365 days.A lot of country all occurs causing the destruction of building along the line and subjective reflection to affect the complaint of life to it due to the vibration & noise of train in the world.For the subway construction phase, also there is similar vibration to complain and complain to the higher authorities about an injustice and request fair settlement event, as line construction in Beijing disturbs residents event, and then become the people and disturb, become a kind of social concern, affect the construction of track traffic
Existing vibration damping mode is according to vibration mechanism of production, and the features of response of propagation law and vibrated object, vibration and noise reducing can from reduction vibration source intensity, and cut-out Vibration propagation approach and building vibration isolation three aspects take some countermeasures.Wherein reducing vibration source intensity is ACTIVE CONTROL, and cut-out Vibration propagation approach and building vibration isolation are Passive Control.
Reduce vibration source intensity: (1) adopts heavy rail (more than 60kg/m), and adopt gapless track as far as possible, the speed of service of appropriate reduction train, axletree reasonable disposition, wheel smoothing, alleviate the unsprung mass of vehicle, avoid vehicle and track to produce to resonate, oscillation intensity 10-15dB (2) fastener vibration damping, special railway roadbed vibration damping (floating slab solid concrete roabed, longitudinal floating slab solid concrete roabed, spring solid concrete roabed, elastic monolithic track bed) sleeper vibration damping can be reduced like this.
Cut off route of transmission: vibration isolate ditch, vibration isolation wall, vibration isolation campshed, wave resistance block etc.;
By vibration body vibration isolation: (1) building vibration isolation usually adopts rigidity and the damping of increase floor, arranges room technology, floating floor etc. in the vibration isolation of floor vibrating isolation system building foundation, room; (2) instrument vibration isolation adopts instrument vibration insulating foundation, commercial vibration-isolating platform, vibration isolation sand pit; (3) ancient building adopts structural maintenance reinforcing, repairerment, Soft foundation treatment.
It is also carry out for some concrete engineerings mostly that current vibration damping shakes, lack unified design guidelines or specification, seek economy, rationally, effectively vibration damping vibration means is extremely urgent, it is that one is benefited our pursuits that the shield structure running tunnel section of jurisdiction of proposition subtracts vibration isolating method, has enriched existing vibration reducing measure.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention aims to provide a kind of method for subway sectional tunnel vibration and noise reducing, be that the active vibration isolation noise reduction measure taked in vibration sensing area is executed to subway, disturbing residents of causing because of vibration and noise can be reduced preferably and disturb the generation of problem with the people.
In order to achieve the above object, the invention provides a kind of method for subway sectional tunnel vibration and noise reducing, it is characterized in that: vibration and noise reducing material is set in the inner side of section of jurisdiction, outside section of jurisdiction, carry out injection vibration and noise reducing slurries;
Refer to the region of more than railway roadbed elevation line inside described section of jurisdiction, the length along subway circulation direction is greater than the sensitivity building length of 2 times; Inside section of jurisdiction, vibration and noise reducing material refers to rubber concrete, and thickness is 3-5cm; The damping ratio 2%-4% of free vibration under the first natural frequency of rubber concrete, modulus of elasticity is 30000-500000MPa;
Refer to the region of below railway roadbed elevation line outside described section of jurisdiction, the length along subway circulation direction is greater than the sensitivity building length of 2 times; Vibration and noise reducing material outside section of jurisdiction refers to vibration and noise reducing slurries, and thickness is 3-8cm; The damping ratio 0.1 ~ 0.3 of free vibration under the vibration and noise reducing material first natural frequency outside section of jurisdiction, modulus of elasticity is 2-5GPa, and expansion ratio is 2 ~ 3.
Vibration and noise reducing material inside described section of jurisdiction refers to rubber concrete, low frequency vibration wave attenuation is fallen.Generally can reduce 5 decibels.Theory and practice shows, the intrinsic frequency of material differs far away with excited frequency, and object is more less likely to occur vibration, adopts flexible rubber concrete to be injected on section of jurisdiction, can avoid resonance.
Due to the periodicity of structure and the continuity of material, the periodicity of periodic structure density of material can be obtained, launch by the periodicity of fourier function by the periodicity of structure and density of material, this equation group is obtained according to corresponding fringe conditions, through characteristic value and the characteristic vector of solving equation group, obtain the function of elastic wave frequency and periodic structure parameter, because this function has periodically this feature, therefore, there is the frequency that elastic wave cannot be passed through, the frequency that this elastic wave cannot be passed through is called periodic structure band gap.Therefore inside section of jurisdiction, attach vibration and noise reducing material can effectively reduce train vibration and pass to the noise caused by the secondary vibration of earth's surface.
The present invention is arranged outside vibration and noise reducing material in section of jurisdiction, and then forms damping structure, the vibration wave propagation that active isolation train wheel track produces.Generally can reduce 5-10 decibel.The method forms a complete closed region, the vibration wave rock soil medium propagation towards periphery that wheel-rail interaction produces can be reduced on the one hand, and then the impact decreased surface buildings and resident, on the other hand due to the vibration and noise reducing inside dry plate, laying work area defines a closed operatic tunes, and during decreasing train operation, noise is on the impact of passenger.
Compared with prior art, the present invention has the following advantages:
By increasing the damped coefficient of section of jurisdiction, cutting off the route of transmission of vibration wave, effectively having decreased the impact of vibration on surrounding environment; And selected materials is junked tire belongs to twice laid, and environmental protection is economical again, and cost is low; Work progress is simple, and to giving alms, utensil requirement is low.
Accompanying drawing explanation
Fig. 1, structural representation of the present invention.
Fig. 2, along train directions arrange schematic diagram.
Detailed description of the invention:
For enabling above-mentioned purpose of the present invention, feature and advantage more understandable, below in conjunction with detailed description of the invention, embodiments of the invention are described in further detail.
Refer to the region of more than railway roadbed elevation line inside section of jurisdiction as described in Figure 1, outside section of jurisdiction, refer to the region of below railway roadbed elevation line.
As Fig. 2 to be greater than the sensitivity building length of 2 times along the length of current of traffic.
Vibration and noise reducing material inside described section of jurisdiction refers to rubber concrete, low frequency vibration wave attenuation is fallen.Generally can reduce 3 decibels.Rubber concrete is made up of cement, sand, stone, Admixture, rubber, water.The damping ratio 2%-4% of free vibration under the first natural frequency of material, modulus of elasticity is 30000-500000MPa.
Inside described section of jurisdiction, the work progress of vibration and noise reducing is: first carry out cleaning repair process to original section of jurisdiction; Then spray rubber concrete vibration and noise reducing layer, eject request is even, and thickness is 3-5cm.
Vibration and noise reducing material outside described section of jurisdiction can but do not limit to employing and can adopt poly-imines glue fat material, meet the following conditions: the damping ratio 0.1 ~ 0.3 of free vibration under first natural frequency, modulus of elasticity is 2-5GPa, and expansion ratio is 2 ~ 3.
Inside described section of jurisdiction, the work progress of vibration and noise reducing is: connect filling gun and grouting pump with high-pressure rubber pipe, uses small-size multifunction Pneumatic grouting pump, adopts double-liquid grouting system, the vibration insulation and noise reduction material resin prepared is injected injected hole together with catalyzer.According to rock property, determine that grouting pressure is 5MPa-8MPa, when grouting pressure reaches 5MPa-8MPa or occurs large area spillage, i.e., during the injection rate of spillage amount=pump, complete the slip casting to current injected hole.
Claims (1)
1. for a method for subway sectional tunnel vibration and noise reducing, it is characterized in that: vibration and noise reducing material is set in the inner side of section of jurisdiction, outside section of jurisdiction, carry out injection vibration and noise reducing slurries;
Refer to the region of more than railway roadbed elevation line inside described section of jurisdiction, the length along subway circulation direction is greater than the sensitivity building length of 2 times; Inside section of jurisdiction, vibration and noise reducing material refers to rubber concrete, and thickness is 3-5cm; The damping ratio 2%-4% of free vibration under the first natural frequency of rubber concrete, modulus of elasticity is 30000-500000MPa;
Refer to the region of below railway roadbed elevation line outside described section of jurisdiction, the length along subway circulation direction is greater than the sensitivity building length of 2 times; Vibration and noise reducing material outside section of jurisdiction refers to vibration and noise reducing slurries, and thickness is 3-8cm; The damping ratio 0.1 ~ 0.3 of free vibration under the vibration and noise reducing material first natural frequency outside section of jurisdiction, modulus of elasticity is 2-5GPa, and expansion ratio is 2 ~ 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510280764.5A CN104847384A (en) | 2015-05-28 | 2015-05-28 | Vibration and noise reduction method for subway intersectional tunnels |
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| CN201510280764.5A CN104847384A (en) | 2015-05-28 | 2015-05-28 | Vibration and noise reduction method for subway intersectional tunnels |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165655A (en) * | 2017-06-29 | 2017-09-15 | 山东科技大学 | A kind of backfilling grouting method in the driving for complete-section tunnel boring machine |
| CN107642367A (en) * | 2017-09-11 | 2018-01-30 | 广州大学 | A kind of shield tunnel isolation structure and its construction method |
| CN109082951A (en) * | 2018-08-13 | 2018-12-25 | 王权势 | A kind of vcehicular tunnel vibration and noise reducing structure and its construction method |
| CN109811598A (en) * | 2019-01-11 | 2019-05-28 | 山东科技大学 | The vibration oscillation damping method that one kind is generated for traffic (high-speed rail, subway etc.) load |
| CN109960859A (en) * | 2019-03-12 | 2019-07-02 | 中国建筑科学研究院有限公司 | Vibration isolation structure and finite element simulation method for buildings along subway line |
| CN110030020A (en) * | 2019-03-20 | 2019-07-19 | 广东工业大学 | A kind of subway tunnel vibration and noise reducing structure and construction method |
| CN110374629A (en) * | 2019-09-03 | 2019-10-25 | 中车建设工程有限公司 | A kind of sqouynd absorption lowering noise tunnel duct piece and its method for prefabricating |
| CN111140282A (en) * | 2020-01-10 | 2020-05-12 | 中国矿业大学 | Active intelligent tunnel monitoring protection system |
| CN111236985A (en) * | 2020-01-10 | 2020-06-05 | 中国矿业大学 | Subway tunnel vibration and noise control method |
| CN113622944A (en) * | 2021-08-31 | 2021-11-09 | 广州大学 | Design method of tunnel structure and vibration isolation layer for isolating subway vibration |
| CN115169118A (en) * | 2022-07-07 | 2022-10-11 | 北京交通大学 | Method and system for evaluating influence of rail transit vibration noise on residents annoyance degree |
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| CN100999398A (en) * | 2006-01-09 | 2007-07-18 | 同济大学 | Rubber concrete for reducing vibration and lowering noise |
| CN202832560U (en) * | 2012-08-21 | 2013-03-27 | 中铁二院工程集团有限责任公司 | Integral ballast bed shield tunnel grouting structure |
| CN202900285U (en) * | 2012-11-08 | 2013-04-24 | 金陵科技学院 | Damping shield tunnel structure |
| KR20130084430A (en) * | 2012-01-17 | 2013-07-25 | 최성준 | Sound absorptive assembly applied to sound barrier tunnel for noise reduction |
| CN103912290A (en) * | 2014-03-31 | 2014-07-09 | 北京工业大学 | Grouting method used for vibration isolating and denoising outside subway tunnel segments |
-
2015
- 2015-05-28 CN CN201510280764.5A patent/CN104847384A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100999398A (en) * | 2006-01-09 | 2007-07-18 | 同济大学 | Rubber concrete for reducing vibration and lowering noise |
| KR20130084430A (en) * | 2012-01-17 | 2013-07-25 | 최성준 | Sound absorptive assembly applied to sound barrier tunnel for noise reduction |
| CN202832560U (en) * | 2012-08-21 | 2013-03-27 | 中铁二院工程集团有限责任公司 | Integral ballast bed shield tunnel grouting structure |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165655A (en) * | 2017-06-29 | 2017-09-15 | 山东科技大学 | A kind of backfilling grouting method in the driving for complete-section tunnel boring machine |
| CN107642367A (en) * | 2017-09-11 | 2018-01-30 | 广州大学 | A kind of shield tunnel isolation structure and its construction method |
| CN109082951A (en) * | 2018-08-13 | 2018-12-25 | 王权势 | A kind of vcehicular tunnel vibration and noise reducing structure and its construction method |
| CN109082951B (en) * | 2018-08-13 | 2020-03-10 | 王权势 | Highway tunnel vibration and noise reduction structure and construction method thereof |
| CN109811598A (en) * | 2019-01-11 | 2019-05-28 | 山东科技大学 | The vibration oscillation damping method that one kind is generated for traffic (high-speed rail, subway etc.) load |
| CN109960859B (en) * | 2019-03-12 | 2023-03-28 | 中国建筑科学研究院有限公司 | Vibration isolation structure and finite element simulation method for buildings along subway line |
| CN109960859A (en) * | 2019-03-12 | 2019-07-02 | 中国建筑科学研究院有限公司 | Vibration isolation structure and finite element simulation method for buildings along subway line |
| CN110030020A (en) * | 2019-03-20 | 2019-07-19 | 广东工业大学 | A kind of subway tunnel vibration and noise reducing structure and construction method |
| CN110374629A (en) * | 2019-09-03 | 2019-10-25 | 中车建设工程有限公司 | A kind of sqouynd absorption lowering noise tunnel duct piece and its method for prefabricating |
| CN111236985A (en) * | 2020-01-10 | 2020-06-05 | 中国矿业大学 | Subway tunnel vibration and noise control method |
| CN111236985B (en) * | 2020-01-10 | 2020-11-24 | 中国矿业大学 | Subway tunnel vibration and noise control method |
| CN111140282A (en) * | 2020-01-10 | 2020-05-12 | 中国矿业大学 | Active intelligent tunnel monitoring protection system |
| CN113622944A (en) * | 2021-08-31 | 2021-11-09 | 广州大学 | Design method of tunnel structure and vibration isolation layer for isolating subway vibration |
| CN113622944B (en) * | 2021-08-31 | 2023-05-23 | 广州大学 | Tunnel structure for isolating subway vibration and design method of vibration isolation layer |
| CN115169118A (en) * | 2022-07-07 | 2022-10-11 | 北京交通大学 | Method and system for evaluating influence of rail transit vibration noise on residents annoyance degree |
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Application publication date: 20150819 |
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