CN103981777A - Metro shock absorption and vibration isolation elastic mixed light track bed - Google Patents
Metro shock absorption and vibration isolation elastic mixed light track bed Download PDFInfo
- Publication number
- CN103981777A CN103981777A CN201410234614.6A CN201410234614A CN103981777A CN 103981777 A CN103981777 A CN 103981777A CN 201410234614 A CN201410234614 A CN 201410234614A CN 103981777 A CN103981777 A CN 103981777A
- Authority
- CN
- China
- Prior art keywords
- concrete
- metro
- vibration
- subway
- railway roadbed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Railway Tracks (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a metro shock absorption and vibration isolation elastic mixed light track bed. The metro shock absorption and vibration isolation elastic mixed light track bed comprises an elastic light concrete layer, wherein the elastic light concrete layer is arranged at the bottom of a metro track bed and used as a base track bed, and pouring material of the elastic light concrete layer comprises a mixture of concrete and expandable polystyrene (EPS) particles. According to the metro shock absorption and vibration isolation elastic mixed light track bed, the mixture of the concrete and the EPS particles is used, the EPS particles have the functions of : 1) absorbing vibration waves and vibration energy, which are generated during the running process of a metro train; 2) generating small transmission energy for an elastic light track bed base layer by being mixed with the concrete due to the fact that wave impedance differences of the EPS particles and the concrete are large. Accordingly, a small part of the vibration energy of the metro train can be transmitted to a metro tunnel lining or a metro duct piece, and furthermore vibration influences on ground and a foundation are weakened.
Description
Technical field
The present invention relates to a kind of subway damping vibration-isolating elasticity mixing light railway roadbed, is that a kind of subway of damping vibration-isolating mixes elasticity lightweight railway roadbed.
Background technology
Along with continuing to increase of the quickening of China's subway construction speed, operation mileage, guarantee the harmonious safety of metro operation, be an important people's livelihood engineering, be also the strategic engineering of urban development green economy.Several metropolis subway flow in 2013 according to statistics: the average daily volume of the flow of passengers of Beijing Metro reaches 1,000 ten thousand people times/day, the average daily volume of the flow of passengers of Shanghai Underground approaches 7,000,000 people times/day, the average daily volume of the flow of passengers of Guangzhou Underground exceedes 5,000,000 people times/day, and the average daily volume of the flow of passengers of Line of Nanjing Subway reaches 1,500,000 people times/day.Visible safety of subway operation is essential.But in fact, many potential safety hazards and harm in the city underground operations such as Shanghai and Nanjing, are there is, as after runing cumulative settling, relative settlement severe overweight, stoppage in transit is overhauled, subway train vibration makes liner structure occur infiltration leakage mud harm aggravation, even occur the periphery soil body and the lining cutting problem such as come to nothing, this is all the challenge that must face in Construction of Urban Rail Traffic.It is also new complaint problem that another subway train vibration disturbs residents, the vibration that Subway Train Operation in Existed Subway causes is outwards propagated by stratum around, further bring out the secondary vibration of building, the impact that the structural safety on building and resident's work and daily life have all produced certain degree.
Occur that these problems have its cause specific, it is to be determined by the shallow overburden subway feature of China.The buried depth of China's subway is mostly between 10-15m, belong to shallow embedding subway, the vibration effect subway resident's along the line who produces when the operation of shallow embedding subway train work and life, simultaneously because shallow surface is mostly Quaternary system soft soil horizon, subway train vibration long term, cause the accumulated deformation severe overweight of subway periphery soft layer, have influence on the safe operation of subway, even produce harm, as there is serious longitudinal differential settlement in Shanghai Metro Line 1 since nineteen ninety-five, built up operation April, cumulative maximum sedimentation approaches 30cm, the poor 3cm that reaches of year maximum settlement, the safe operation of serious threat subway.American-European subway buried depth is larger, but corresponding cost can exceed a lot.Because China's subway construction scale of construction is large, investment wretched insufficiency, for reducining the construction costs, selecting shallow embedding subway is that construction cost is selected-saved in a kind of compromise.In addition, the working condition complexity that shallow embedding subway faces, shallow-layer soil layer mostly is Quaternary Strata on the one hand, and soft layer is many, and the variation of soil layer physico-mechanical properties is very complicated; Subway line is long, passes through different soil layers or geologic element, also can run into great rivers and lake simultaneously, and great rivers and lake section structure of the subway will bear high hydraulic pressure, then adds artesian ground water in addition, and environment is very complicated.Therefore shallow embedding subway brings again such problem: 1. the accumulated deformation of periphery soft soil (weak surrounding rock) is difficult to control, and 2. subway train vibration effect strengthens again the adverse effect of accumulated deformation and the durable antiseepage of liner structure.
In recent years, the fast development of subway transportation system of China, after Beijing, Shanghai, Guangzhou Underground are opened, has again nearly 40 cities to start or plans to build subway or light rail.Because city underground all runs through city commercial centre and intensive residential quarter, the impact that Adjacent Buildings dwelling environment along the line is produced can not be ignored.Subway adopts solid concrete roabed structure conventionally, and being increases the elasticity of track, and rail fastening adopts two elastic layers designs, under lower and separated rail fastening iron chair, all establishes the rubber mat plate that quiet stiffness factor is less in-orbit.Reduce vibration source vibration and conventionally take following several measure:
1, adopt heavy rail more than 60kg/m, and adopt gapless track as far as possible;
2, alleviate the unsprung mass of vehicle, avoid vehicle and track to produce resonance, can reduce like this oscillation intensity 10dB ±;
3, suitably increase subway buried depth, make vibration amplitude add high attenuation with distance (degree of depth);
4, adopt suitable railway roadbed and track structure pattern, increase the elasticity of track, set up the rubber mat plate that quiet stiffness factor is less, vibration attenuation reaches 5～10dB, but application life is short, and later stage effectiveness in vibration suppression is poor, cannot change again.
Although these glissandoes have obtained certain effect, long-term periodic vibration causes that the accumulation of the ground under subway becomes distortion and constantly increases, and has threatened the safe operation of subway, and has greatly increased operation maintenance cost.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of subway damping vibration-isolating elasticity mixing light railway roadbed, after adopting this mixing elasticity lightweight railway roadbed, can reduce the harm that subway train vibrates, thereby the accumulated deformation that subway train vibrates the impact on building along the line and controls subway periphery soft soil foundation is fallen, the accumulated deformation of guaranteeing subway periphery ground is controlled, reduce subway surrounding ground vibration prestige evil, guarantee metro safety operation.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
In prior art, the about 35cm of iron base railway roadbed is thick on ground, and railway roadbed adopts the pouring concrete of C35 conventionally, belongs to rigidity railway roadbed, and train vibration be there is no to any attenuation.Subway engineering does not all adopt any glissando at the basic railway roadbed of common interval section, be in hospital, have the region, position such as factory building, office of vibration damping requirement to adopt vibration damping facility, as damping is carried out in the measures such as floating slab railway roadbed, elastic short rail sleeper formula monolithic roadbed track, rubber mat plate, but the damping vibration-isolating effect that these measures are difficult to reach, vibration attenuation 6-10dB, application life is limited.
A kind of subway damping vibration-isolating elasticity mixing light railway roadbed, comprises elasticity lightweight layer of concrete, and the bottom that described elasticity lightweight layer of concrete is arranged on subgrade of metro is as basic railway roadbed; Described elasticity lightweight layer of concrete build the compound that material comprises concrete and EPS particle.
The present invention mainly adopts to mix and builds material (can be referred to as to mix elasticity lightweight railway roadbed material), and include lightweight elastic fluid in this mixing elasticity lightweight railway roadbed material, the vibrational energy decay that makes like this transmission propagate, more than its energy attenuation reaches 20dB, the effect of its damping vibration-isolating is more obvious.Adopt and mix elasticity lightweight railway roadbed material-paving formation elasticity lightweight layer of concrete, the bottom that this elasticity lightweight layer of concrete is arranged on subgrade of metro is basic railway roadbed, contact with lining cutting or the section of jurisdiction of subway, this composite construction railway roadbed had both met intensity and requirement steady in a long-term, there is again certain elasticity, play obvious damping vibration-isolating effect, its energy attenuation reaches 20dB.
Preferably, described in build in material, concrete carries out proportioning according to the requirement of C35, the density of EPS particle is 12～15kg/m
3, the particle diameter of EPS particle is 1～2mm.
Preferably, described in build in material, the strict degree requiring according to damping is determined the volume ratio of concrete and EPS particle, damping requires higher, the content of EPS particle is larger.
Preferably, described in build in material, according to the damping requirement in hospital, theater region, the volume ratio of concrete and EPS particle is 2:3,2:2 or 2:1; According to the damping requirement in region, station, the volume ratio of concrete and EPS particle is 1:1,2:1 or 3:1; According to the damping requirement of general area, the volume ratio of concrete and EPS particle is 3:2,3:1 or 4:1.
Preferably, described in build material and mix after-pouring basis of formation railway roadbed, vibrate that it is uniform sequential to need, surfacing, prevents that EPS granule partial from piling up, guaranteed strength uniformity.Basis railway roadbed is built after end, and moisture-keeping maintaining can carry out the construction of follow-up railway roadbed top ballast bed structure layer for 7 days.
Preferably, the thickness of described basic railway roadbed is 25～30 ± cm.
Beneficial effect: subway damping vibration-isolating elasticity mixing light railway roadbed provided by the invention, use the compound of concrete and EPS particle, the effect one of EPS particle be absorb subway train travel produce vibration wave and vibrational energy, the 2nd, because the difference of impedance of EPS particle and this bi-material of concrete is larger, therefore the transmission potential by mixing elasticity lightweight railway roadbed basal layer is by smaller, to be delivered to energy on lining structure of metro or section of jurisdiction just less for subway vibrational energy like this, also just weakened to the vibration effect of ground and ground; The energy that can effectively intercept and reduce like this train vibration is delivered to the liner structure of subway, and passed to by liner structure in the foundation soil body of periphery, building to earth's surface and subway ground produce extraneous vibration or cause secondary vibration, so that the even harm that exerts an influence.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of subway damping vibration-isolating elasticity mixing light railway roadbed, comprise elasticity lightweight layer of concrete, described elasticity lightweight layer of concrete is arranged on the bottom of subgrade of metro as basic railway roadbed 1, described basic railway roadbed 1 contacts with lining structure of metro section of jurisdiction 4, and the thickness of described basic railway roadbed is 25～30 ± cm.
Ground ferroelasticity mixing light railway roadbed basal layer mainly utilizes concrete-EPS particle to mix; absorb underground engines travel produce vibration wave and vibrational energy; the energy that can effectively intercept and reduce like this locomotive vibration is delivered to the liner structure of subway; and passed to by liner structure in the Rock And Soil of periphery; building to earth's surface and subway ground produce extraneous vibration; so that the even harm that exerts an influence, can reduce the accumulated deformation causing because of locomotive vibration to the subway construction of soft foundation.As shown in Figure 1, inputted vibration shock wave 2 forms output shock wave vibratory 3 behind basic railway roadbed 1 and lining structure of metro section of jurisdiction 4.
The paver of described elasticity lightweight layer of concrete comprises the compound of concrete and EPS particle, in this mixing elasticity lightweight railway roadbed material, include lightweight elastic fluid, the vibrational energy decay that makes like this transmission propagate, more than its energy attenuation reaches 20dB, the effect of its damping vibration-isolating is more obvious.
Described building in material, concrete carries out proportioning according to the requirement of C35, and the density of EPS particle is 12～15kg/m
3, the particle diameter of EPS particle is 1～2mm; The strict degree requiring according to damping is determined the volume ratio of concrete and EPS particle, and damping requires higher, and the content of EPS particle is larger: according to the damping requirement in hospital, theater region, the volume ratio of concrete and EPS particle is 2:3,2:2 or 2:1; According to the damping requirement in region, station, the volume ratio of concrete and EPS particle is 1:1,2:1 or 3:1; According to the damping requirement of general area, the volume ratio of concrete and EPS particle is 3:2,3:1 or 4:1.
Subway damping vibration-isolating elasticity mixing light railway roadbed laying method based on inventive concept, specifically comprises the steps:
1, according to the damping requirement of zones of different, test the volume ratio of concrete and EPS particle in definite mixing elasticity lightweight railway roadbed material indoor;
2, concrete carries out proportioning according to the requirement of C35, and the density of EPS particle is 12～15kg/m
3, the particle diameter of EPS particle is 1～2mm; Mix mixing elasticity lightweight railway roadbed material according to definite volume ratio, guarantee full and uniform mix;
3, mix is mixed uniformly to the computing of elasticity lightweight railway roadbed material and build to scene, vibrating need be uniform sequential, and surfacing prevents the accumulation of EPS granule partial, guaranteed strength uniformity;
4, basic railway roadbed is built after end, and moisture-keeping maintaining can carry out the construction of follow-up railway roadbed top ballast bed structure layer for 7 days.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a subway damping vibration-isolating elasticity mixing light railway roadbed, is characterized in that: comprise elasticity lightweight layer of concrete, the bottom that described elasticity lightweight layer of concrete is arranged on subgrade of metro is as basic railway roadbed; Described elasticity lightweight layer of concrete build the compound that material comprises concrete and EPS particle.
2. subway damping vibration-isolating elasticity mixing light railway roadbed according to claim 1, is characterized in that: described in build in material, concrete carries out proportioning according to the requirement of C35, the density of EPS particle is 12～15kg/m
3, the particle diameter of EPS particle is 1～2mm.
3. subway damping vibration-isolating elasticity mixing light railway roadbed according to claim 1, is characterized in that: described in build in material, the strict degree requiring according to damping is determined the volume ratio of concrete and EPS particle, damping requires higher, the content of EPS particle is larger.
4. subway damping vibration-isolating elasticity mixing light railway roadbed according to claim 3, is characterized in that: described in build in material, according to the damping requirement in hospital, theater region, the volume ratio of concrete and EPS particle is 2:3,2:2 or 2:1; According to the damping requirement in region, station, the volume ratio of concrete and EPS particle is 1:1,2:1 or 3:1; According to the damping requirement of general area, the volume ratio of concrete and EPS particle is 3:2,3:1 or 4:1.
5. subway damping vibration-isolating elasticity mixing light railway roadbed according to claim 1, is characterized in that: described in build material and mix after-pouring basis of formation railway roadbed.
6. subway damping vibration-isolating elasticity mixing light railway roadbed according to claim 1, is characterized in that: the thickness of described basic railway roadbed is 25～30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234614.6A CN103981777B (en) | 2014-05-29 | 2014-05-29 | A kind of subway damping vibration-isolating elasticity mixing light railway roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234614.6A CN103981777B (en) | 2014-05-29 | 2014-05-29 | A kind of subway damping vibration-isolating elasticity mixing light railway roadbed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103981777A true CN103981777A (en) | 2014-08-13 |
| CN103981777B CN103981777B (en) | 2015-10-28 |
Family
ID=51273933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410234614.6A Active CN103981777B (en) | 2014-05-29 | 2014-05-29 | A kind of subway damping vibration-isolating elasticity mixing light railway roadbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103981777B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594136A (en) * | 2014-12-17 | 2015-05-06 | 东南大学 | Subway shock reduction vibration isolation elastic mixed light track bed control process |
| CN106186870A (en) * | 2016-07-12 | 2016-12-07 | 东南大学 | Subway vibration damping and vibration isolation lightweight concrete is combined railway roadbed manufacture method |
| CN106186869A (en) * | 2016-07-12 | 2016-12-07 | 东南大学 | Subway vibration damping and vibration isolation railway roadbed lightweight precast concrete part preparation method |
| CN106245466A (en) * | 2016-10-09 | 2016-12-21 | 北京交通大学 | Combined elastic ballast bed structure |
| CN106283943A (en) * | 2016-10-09 | 2017-01-04 | 北京交通大学 | Elastic roadbed structure |
| CN108383431A (en) * | 2018-03-28 | 2018-08-10 | 东南大学 | A kind of durability lightweight concrete production method of vibration damping and vibration isolation railway roadbed |
| CN108383439A (en) * | 2018-03-14 | 2018-08-10 | 东南大学 | A kind of binary composite subway vibration-damping ballast production method |
| CN108467225A (en) * | 2018-03-14 | 2018-08-31 | 东南大学 | A kind of trielement composite material subway vibration-damping ballast production 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 |
| CN111058339A (en) * | 2019-12-06 | 2020-04-24 | 华东交通大学 | Adjustable quasi-periodic photonic crystal fastener system |
| CN111502693A (en) * | 2020-04-11 | 2020-08-07 | 中铁二院工程集团有限责任公司 | Inner bottom filling type shield tunnel lining structure |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008743A1 (en) * | 1978-08-22 | 1980-03-19 | Jacob Albertus Eisses | Method for improving the vibration absorption of a railway track supported on a bed of ballast and a track structure obtained by applying such a method |
| NL1009311C2 (en) * | 1998-06-04 | 1999-04-27 | Milan Duskov | Railway track construction - has track supported on load distributing layer resting on top of low density foundation layer, preferably comprising a composite material or expanded polystyrene hard foam |
| DE202006008104U1 (en) * | 2006-05-18 | 2006-07-20 | Seifert, Dietrich | Vibrations and sound damping device e.g. for rails fastened to concrete foundations for trains, has rails fastened to concrete foundations such that high-speed rails are provided with rails having U-shaped part and made from plastic |
| CN1899813A (en) * | 2006-07-21 | 2007-01-24 | 仪征市橡胶制品有限公司 | Shock-proof cushion for train track plate and its producing method |
| CN102219887A (en) * | 2011-05-23 | 2011-10-19 | 中国铁道科学研究院金属及化学研究所 | Ballast adhesive resin as well as preparation method and applications thereof |
| CN102383343A (en) * | 2011-08-17 | 2012-03-21 | 东南大学 | Damping vibration-isolating compound track bed for metro and construction method thereof |
-
2014
- 2014-05-29 CN CN201410234614.6A patent/CN103981777B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008743A1 (en) * | 1978-08-22 | 1980-03-19 | Jacob Albertus Eisses | Method for improving the vibration absorption of a railway track supported on a bed of ballast and a track structure obtained by applying such a method |
| NL1009311C2 (en) * | 1998-06-04 | 1999-04-27 | Milan Duskov | Railway track construction - has track supported on load distributing layer resting on top of low density foundation layer, preferably comprising a composite material or expanded polystyrene hard foam |
| DE202006008104U1 (en) * | 2006-05-18 | 2006-07-20 | Seifert, Dietrich | Vibrations and sound damping device e.g. for rails fastened to concrete foundations for trains, has rails fastened to concrete foundations such that high-speed rails are provided with rails having U-shaped part and made from plastic |
| CN1899813A (en) * | 2006-07-21 | 2007-01-24 | 仪征市橡胶制品有限公司 | Shock-proof cushion for train track plate and its producing method |
| CN102219887A (en) * | 2011-05-23 | 2011-10-19 | 中国铁道科学研究院金属及化学研究所 | Ballast adhesive resin as well as preparation method and applications thereof |
| CN102383343A (en) * | 2011-08-17 | 2012-03-21 | 东南大学 | Damping vibration-isolating compound track bed for metro and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙筠: "《已建软基桥梁桥头跳车的处治方法机理分析及试验研究》", 31 May 2011, article "《已建软基桥梁桥头跳车的处治方法机理分析及试验研究》", pages: 40-41 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594136A (en) * | 2014-12-17 | 2015-05-06 | 东南大学 | Subway shock reduction vibration isolation elastic mixed light track bed control process |
| CN106186870A (en) * | 2016-07-12 | 2016-12-07 | 东南大学 | Subway vibration damping and vibration isolation lightweight concrete is combined railway roadbed manufacture method |
| CN106186869A (en) * | 2016-07-12 | 2016-12-07 | 东南大学 | Subway vibration damping and vibration isolation railway roadbed lightweight precast concrete part preparation method |
| CN106245466A (en) * | 2016-10-09 | 2016-12-21 | 北京交通大学 | Combined elastic ballast bed structure |
| CN106283943A (en) * | 2016-10-09 | 2017-01-04 | 北京交通大学 | Elastic roadbed structure |
| CN108383439A (en) * | 2018-03-14 | 2018-08-10 | 东南大学 | A kind of binary composite subway vibration-damping ballast production method |
| CN108467225A (en) * | 2018-03-14 | 2018-08-31 | 东南大学 | A kind of trielement composite material subway vibration-damping ballast production method |
| CN108383431A (en) * | 2018-03-28 | 2018-08-10 | 东南大学 | A kind of durability lightweight concrete production method of vibration damping and vibration isolation railway roadbed |
| 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 |
| CN111058339A (en) * | 2019-12-06 | 2020-04-24 | 华东交通大学 | Adjustable quasi-periodic photonic crystal fastener system |
| CN111502693A (en) * | 2020-04-11 | 2020-08-07 | 中铁二院工程集团有限责任公司 | Inner bottom filling type shield tunnel lining structure |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103981777B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103981777B (en) | A kind of subway damping vibration-isolating elasticity mixing light railway roadbed | |
| US9045865B2 (en) | Polymer grouting method for uplifting ballastless track of high-speed rail | |
| CN104847384A (en) | Vibration and noise reduction method for subway intersectional tunnels | |
| CN104032772B (en) | A kind of railway subtracts vibration insulation structure continuously | |
| CN102383343B (en) | Damping vibration-isolating compound track bed for metro and construction method thereof | |
| CN104947721B (en) | Subway car depot testing line composite vibration-isolation barrier | |
| CN106192646A (en) | Vcehicular tunnel car-driving shock-absorbing denoising structure and construction method thereof | |
| CN102080548A (en) | Construction method of tunnel to cross airport runway by shield method | |
| CN108442184B (en) | A kind of periodic structure subway vibration-damping ballast production method | |
| CN103912290B (en) | Grouting method used for vibration isolating and denoising outside subway tunnel segments | |
| CN106320204A (en) | Vibration isolation barrier based on foam sandwich wave resistance plates | |
| CN108467225B (en) | A kind of trielement composite material subway vibration-damping ballast production method | |
| CN204729106U (en) | A kind of prefabricated pipe section for subway sectional tunnel vibration and noise reducing | |
| CN104594136B (en) | Subway damping vibration-isolating elasticity mixing light railway roadbed controls technique | |
| Zhao et al. | Stability Analysis of TBM Tunnel Undercrossing Existing High‐Speed Railway Tunnel: A Case Study from Yangtaishan Tunnel of Shenzhen Metro Line 6 | |
| CN108442185B (en) | A kind of compound railway roadbed and preparation method thereof of vibration damping and vibration isolation bandwidth regulation | |
| CN106182414B (en) | Subway vibration damping and vibration isolation railway roadbed lightweight concrete mixing device and its blending method | |
| CN105036618A (en) | Preparation method of metro damping and vibration-isolating ballast bed lightweight concrete | |
| CN109811598B (en) | Vibration damping structure and method for traffic load generation | |
| Massarsch | Mitigation of traffic-induced ground vibrations | |
| CN109098058B (en) | Traffic load vibration reduction structure and construction method | |
| CN203383151U (en) | Grouting device for two sides of bridge body | |
| CN204530790U (en) | The continuous vibration isolation barrier of a kind of hard polyurethane foam having anchor pole to retrain | |
| CN206127789U (en) | Structure of making an uproar falls in highway tunnel driving damping | |
| Wang et al. | Spatial Distribution Law of Vibration Acceleration of Ultra-small-spacing Tunnel under Train Moving Loads. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |