CN105484173A - Line-to-line drainage structure for double-line sections of medium and low speed magnetic suspension lower lines - Google Patents

Line-to-line drainage structure for double-line sections of medium and low speed magnetic suspension lower lines Download PDF

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Publication number
CN105484173A
CN105484173A CN201610030944.2A CN201610030944A CN105484173A CN 105484173 A CN105484173 A CN 105484173A CN 201610030944 A CN201610030944 A CN 201610030944A CN 105484173 A CN105484173 A CN 105484173A
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wall
line
bedding
magnetic suspension
boss
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CN105484173B (en
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郭建湖
李小和
姚洪锡
王勇刚
杨辉建
李巍
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

The invention discloses a line-to-line drainage structure for double-line sections of medium and low speed magnetic suspension lower lines. The line-to-line drainage structure comprises a foundation bed, a line-to-line drainage device, strong current cable support seats and a water guide layer, wherein the foundation bed is arranged on a roadbed; the line-to-line drainage device is arranged in a drainage groove of the foundation bed and comprises a bottom plate, a first vertical wall, a second vertical wall, drainage holes and vertical wall lugs, wherein a plurality of drainage holes are penetrated in the first vertical wall and the second vertical wall; the quantity of the strong current cable support seats is equal to the quantity of the vertical wall lugs; and the water guide layer is arranged on a top end face of the foundation bed and is used for guiding water into a drainage channel of the line-to-line drainage device. The line-to-line drainage structure disclosed by the invention can well adapt to line-to-line drainage and cable laying of magnetic suspension traffic engineering and can ensure long-term stability and durability of the foundation bed.

Description

A kind of for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location
Technical field
The invention belongs to railway track traffic field, more specifically, relate to a kind of for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location.
Background technology
Middle low speed magnetic suspension track traffic belongs to a kind of novel traffic mode, and current achievement in research both domestic and external is less, and the circuit minority especially of operation is opened in the whole world.In March, 2005 Japan is only had to build middle low speed magnetic suspension railway comercial operation line-the East Hillside Line of opening and middle low speed magnetic suspension railway business operating line that in June, 2014, Korea S opened at present.And the middle low speed magnetic suspension traffic of China only has National University of Defense technology's test wire, Green City Mountain test wire, Tangshan experiment line at present, but the formal circuit do not put into effect, and all based on elevated structure, rarely seen about the low research and apply putting discharge structure aspect between the line of circuit two-wire location.
In wheel rail high speed railway system, roadbed location two-wire line inter-drain such as to adopt usually at the uniform section rectangle steel reinforced concrete ditch of wall thickness, its wall thickness is usually less, general 0.2 ~ 0.3m, top, line inter-drain two side is concordant to be connect with water guide layer is suitable, line-to-line surface water is caused in ditch, then ejectment is established between the line at a place in collecting well to general every 50m, then discharged outside roadbed by collecting well and transverse drain.
Different from wheel rail high speed railway system, in middle low speed magnetic suspension traffic engineering, low circuit location forceful electric power cable support seat of putting is generally positioned between line, and cable bearer pedestal requires there is certain safe distance apart from road bed.Uneconomical when forceful electric power cable support seat establishes separately basis, adopt trench culture basis between line then to there is following problem:
First, due to the base size of forceful electric power cable support seat and the load of transmission larger, if with reference to wheel rail high speed railway system, it is directly stood on dewatering installation side top side wall between the line in wheel rail high speed railway system, adopt the uniform section rectangular drain ditch of thinner ditch wall thickness to be discontented with sufficient dimensional requirement, adopt the uniform section rectangular drain ditch of thicker ditch wall thickness to meet dimensional requirement but uneconomical.
Secondly, between the line in wheel rail high speed railway system, dewatering installation both sides top side wall is concordant, with water guide layer along connecing, the pedestal of forceful electric power cable support seat is directly stood on dewatering installation side top side wall between line, do not meet cable bearer pedestal apart from road bed safe distance requirement, directly increase dewatering installation side sidewall between the line as forceful electric power cable support seat basis, then draining between the roadbed upper thread that have impact on corresponding side.
In addition, as the line construction that Light deformation controls, the low circuit of putting of magnetic suspension directly adopts dewatering installation between the section line of wheel rail high speed railway double-circuit base cannot ensure magnetic suspension low long-time stability and durability of putting the equilibrium of circuit bedding scope internal stress and bedding in dewatering installation place between line.Therefore, between the section line of wheel rail high speed railway double-circuit base, dewatering installation can not be directly used in magnetic suspension traffic engineering.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides discharge structure between a kind of low line putting circuit two-wire location for middle low speed magnetic suspension.This structure should meet drainage requirement between the low line putting circuit two-wire location, ensure the installation of magnetic suspension traffic engineering forceful electric power cable support seat, the uniform force of instructions for use and bedding, long-time stability and durability again, and construction quality controllability is strong.
For achieving the above object, according to the present invention, provide and a kind ofly it is characterized in that for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, comprise dewatering installation between bedding, line, forceful electric power cable support seat and water guide layer, wherein,
Described bedding is arranged on roadbed, is provided with the rhone for holding dewatering installation between line;
Between described line, dewatering installation is arranged in the rhone of described bedding, it comprises base plate, first wall, second wall, spilled water hole and wall boss, described base plate is placed on described bedding, described first wall and the second wall are disposed side by side on the top end face of described base plate, drainage channel is formed and these two sides are the inclined-plane be inclined relative to horizontal between the two sides that described first wall is relative with the second wall, current are imported described drainage channel, described first wall and the opposing two sides of the second wall abut with described bedding respectively, the cross section of described first wall and the second wall is all in trapezoidal, and the top of the second wall cross section and the width of bottom are greater than the described top of the first wall cross section and the width of bottom respectively, in addition, all throughly on described first wall and the second wall be provided with multiple spilled water hole, import in described drainage channel for by the moisture in described bedding, thus the moisture content in reduction bedding, the quantity of described wall boss is multiple and these wall boss are arranged on the top end face of described second wall along the longitudinal direction of described second wall, there is spacing between adjacent two wall boss,
The quantity of described forceful electric power cable support seat is consistent with the quantity of described wall boss, and each forceful electric power cable support seat is arranged on a wall boss respectively, in addition, each forceful electric power cable support seat includes pedestal and support, wherein, described pedestal is arranged on the top end face of described wall boss, and described Bracket setting is on the top end face of described pedestal;
Described water guide layer is arranged on the top end face of described bedding, imports in the drainage channel of dewatering installation between described line for by water.
Preferably, described first wall and the second wall are provided with pvc pipe, described spilled water hole is the inner chamber of described pvc pipe.
Preferably, described pedestal is fixed on described wall boss by expansion bolt.
Preferably, described water guide layer is made up of fibrous concrete or bituminous concrete.
Preferably, described base plate, the first wall, the second wall and wall boss all adopt steel concrete to make.
Preferably, the gradient of described water guide layer is 3% ~ 5%.
Preferably, described first wall is equal with the height of the second wall.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1) between line of the present invention, dewatering installation adopts the non-non-constant section rectangle ditch waiting wall thickness, good economy performance;
2) wall boss of the present invention is arranged on the second wall, make longitudinally to form square-wave form along circuit, good looking appearance, both draining needs between line had been met, meet again the installation dimension of cable bearer and pedestal and the clear distance requirement apart from water guide layer, and can make lowly to put circuit bedding uniform force by the physical dimension of dewatering installation between adjustment line;
3) spilled water hole that the present invention is reserved in the second wall and the first wall can reduce moisture content in bedding fast, improves bedding long-time stability and durability;
4) base plate of the present invention, the first wall, the second wall and wall boss all adopt steel concrete to make, and construction quality is easy to control, and is easy to repair and maintenance, can meets the requirement of draining and cable laying between the low line putting circuit two-wire location;
5) the present invention can adapt to the drainage works of magnetic suspension traffic engineering and the laying of cable well, can ensure long-time stability and the durability of bedding.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is that between center line of the present invention, dewatering installation is arranged on the left view in bedding;
Fig. 3 is the left view between center line of the present invention, dewatering installation being installed forceful electric power cable support seat;
Fig. 4 is force analysis and the scale diagrams of dewatering installation between center line of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
With reference to Fig. 1 ~ Fig. 4, a kind ofly comprise dewatering installation 1 between bedding 4, line, forceful electric power cable support seat 2 and water guide layer 3 for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, wherein,
Described bedding 4 is arranged on roadbed, is provided with the rhone for holding dewatering installation 1 between line;
Between described line, dewatering installation 1 is arranged in the rhone of described bedding 4, it comprises base plate 11, first wall 12, second wall 13, spilled water hole 15 and wall boss 14, described base plate 11 is placed on described bedding 4, described first wall 12 and the second wall 13 are disposed side by side on the top end face of described base plate 11, drainage channel 16 is formed and this two sides are the inclined-plane be inclined relative to horizontal between the two sides that described first wall 12 is relative with the second wall 13, current are imported described drainage channel, described first wall 12 and the opposing two sides of the second wall 13 abut with described bedding 4 respectively, the cross section of described first wall 12 and the second wall 13 is all in trapezoidal, and the top of the second wall 13 cross section and the width of bottom are greater than the described top of the first wall 12 cross section and the width of bottom respectively, in addition, all throughly on described first wall 12 and the second wall 13 be provided with multiple spilled water hole 15, import in described drainage channel 16 for by the moisture in described bedding 4, thus the moisture content in reduction bedding, preferably, described first wall 12 and the second wall 13 are provided with pvc pipe, and described spilled water hole 15 is the inner chamber of described pvc pipe.The quantity of described wall boss 14 is multiple and these wall boss 14 are arranged on the top end face of described second wall 13 along the longitudinal direction of described second wall 13, there is spacing between adjacent two wall boss 14; Preferably, described base plate 11, first wall 12, second wall 13 and wall boss 14 all adopt steel concrete to make, and described first wall 12 is equal with the height of the second wall 13.
The quantity of described forceful electric power cable support seat 2 is consistent with the quantity of described wall boss 14, and each forceful electric power cable support seat 2 is arranged on a wall boss 14 respectively, in addition, each forceful electric power cable support seat 2 includes pedestal 22 and support 21, wherein, described pedestal 22 is arranged on the top end face of described wall boss 14, and preferably, described pedestal 22 is fixed on described wall boss 14 by expansion bolt.Described support 21 is arranged on the top end face of described pedestal 22; Wherein, described support 21 comprises column and Duo Gen crossbeam, and the top end face that described column is arranged on described pedestal 22 is vertically arranged, and every root crossbeam is all fixedly mounted on described column.
Described water guide layer 3 is arranged on the top end face of described bedding 4, imports in the drainage channel 16 of dewatering installation 1 between described line for by water.Preferably, described water guide layer 3 is made up of fibrous concrete or pitch, and the gradient of described water guide layer 3 is 3% ~ 5%, is more preferably 4%.
Between line of the present invention, the base plate 11 of dewatering installation 1 and the first wall 12 are designed to certain thickness and height, meet soil pressure load and the drainability requirement of bedding 4 generation, second wall 13 is designed to the dimensional requirement that certain thickness meets pedestal 22 installation of the soil pressure load of bedding 4 generation, the load of forceful electric power cable support seat 2 transmission and forceful electric power cable support seat 2, wall boss 14 is designed to certain altitude, meets the pedestal 22 of forceful electric power cable support seat 2 to the clear distance requirement apart from roadbed water guide layer 3.Spilled water hole 15 adopts the pre-buried making of pvc pipe, and mouth of pipe parcel geotextiles, for reducing moisture content in bedding 4 fast, and to prevent in bedding 4 fine grained with in current band lambda line inter-drain.
Wall boss 14 width should meet the dimensional requirement of the pedestal 22 of forceful electric power cable support seat 2, thus realizes the low installation requirement putting circuit forceful electric power cable support seat 2.
Low put table water between circuit two line support rail beam through the top of the first wall 12, the top of the second wall 13 to drain between line in dewatering installation 1.
Wall boss 14 spacing is determined according to forceful electric power cable support seat 2 load, the combination of wall boss 14 and the second wall 13 makes circuit longitudinally form square waveform, space between wall boss 14 can not only realize draining between the line as second wall 13 side on forceful electric power cable support seat 2 basis, and good looking appearance.
According to the load that forceful electric power cable support seat 2 transmits, reduce by the dewatering installation 1 physical dimension moment of flexure that enables it produce between adjustment line base plate 11 unbalanced stress caused because dewatering installation between line 1 size is asymmetric, make that base plate 11 times beddings 4 are stressed is tending towards even.
With reference to Fig. 4, base plate 11 ends A, B point base stress p a, p bpress formula (1) respectively, formula (2) calculate:
p A = F + G b - F * ( 0.5 * b - 0.5 * b 5 - e ) b 2 / 6 - - - ( 1 )
p B = F + G b + F * ( 0.5 * b - 0.5 * b 5 - e ) b 2 / 6 - - - ( 2 )
P athe A point base stress of-base plate 11, kPa;
P bthe B point base stress of-base plate 11, kPa;
Dewatering installation 1 dead load between G-line, kN, calculates by formula (3):
G = γ * [ b * h 3 + b 1 + b 4 2 * h 1 + b 3 + b 5 2 * ( h 1 + h 2 ) ] - - - ( 3 )
Wherein,
The load that F-forceful electric power cable support seat 2 transmits, kN;
Dewatering installation 1 overall width between b-line, m;
B 1-the first wall 12 bottom width, m;
B 2width bottom-drainage channel 16, m;
B 3-the second wall 13 bottom width, m;
B 4-the first wall 12 top width, m;
B 5-the second wall 13 top width, m;
Dewatering installation 1 overall height between h-line, m;
H 1-the first wall 12 height, m;
H 2-wall boss 14 height, m;
H 3-base plate 11 height, m;
Dewatering installation 1 structural focus eccentric throw between e-line, m, calculates by formula (4):
e = b 2 * b * h 3 + b 4 * b 4 + b 1 * b 1 + b 1 * b 4 3 ( b 1 + b 4 ) * ( b 1 + b 4 ) 2 * h 1 + ( b - b 3 * b 3 + b 5 * b 5 + b 3 * b 5 6 ( b 3 + b 5 ) ) * ( b 3 + b 5 ) 2 * ( h 11 + h 2 ) b * h 3 + ( b 1 + b 4 ) 2 * h 1 + ( b 3 + b 5 ) 2 * ( h 1 + h 2 ) - b 2 - - - ( 4 )
Base plate 11 uniform stressed condition is pressed formula (5) and is calculated:
0.5*b-0.5*b 5-e≈0(5)
Dewatering installation 1 overall width between b-line, m;
B 5-the second wall 13 top width, m;
Dewatering installation 1 structural focus eccentric throw between e-line, m.
Concrete building forming process of the present invention is as follows:
(1) construct and lowly put geotechnique basis and support rail beam under circuit support rail beam, according to the pre-buried transverse drain of designing requirement and apply collecting well between line in process, after meeting design requirement after testing, fill bedding.
(2) according to the load that forceful electric power cable support seat 2 transmits, dewatering installation 1 physical dimension (calculating by formula (1) ~ (4)) between adjustment line, make base plate 11 stress equilibrium, again according to dewatering installation between line 1 size, plan-position, drainage grade designing requirement, excavation bedding forms rhone, smooth bedding, assembling reinforcement, concreting, to form dewatering installation 1 between line; In addition, before concreting, pre-buried pvc pipe is to form spilled water hole 15, and the external diameter of pvc pipe is 0.1m.
(3), after dewatering installation 1 concrete strength reaches designing requirement between line, adopt concrete backfill furrow bank both sides to backbreak part, build fibrous concrete (or pitch) to form water guide layer 3.
(4) on wall boss 14, applying expansion bolt, then install pedestal 22 and the support 21 of forceful electric power cable support seat 2, is discharge structure between shape cost line after construction.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1., for a discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, it is characterized in that, comprise dewatering installation between bedding, line, forceful electric power cable support seat and water guide layer, wherein,
Described bedding is arranged on roadbed, is provided with the rhone for holding dewatering installation between line;
Between described line, dewatering installation is arranged in the rhone of described bedding, it comprises base plate, first wall, second wall, spilled water hole and wall boss, described base plate is placed on described bedding, described first wall and the second wall are disposed side by side on the top end face of described base plate, drainage channel is formed and these two sides are the inclined-plane be inclined relative to horizontal between the two sides that described first wall is relative with the second wall, current are imported described drainage channel, described first wall and the opposing two sides of the second wall abut with described bedding respectively, the cross section of described first wall and the second wall is all in trapezoidal, and the top of the second wall cross section and the width of bottom are greater than the described top of the first wall cross section and the width of bottom respectively, in addition, all throughly on described first wall and the second wall be provided with multiple spilled water hole, import in described drainage channel for by the moisture in described bedding, thus the moisture content in reduction bedding, the quantity of described wall boss is multiple and these wall boss are arranged on the top end face of described second wall along the longitudinal direction of described second wall, there is spacing between adjacent two wall boss,
The quantity of described forceful electric power cable support seat is consistent with the quantity of described wall boss, and each forceful electric power cable support seat is arranged on a wall boss respectively, in addition, each forceful electric power cable support seat includes pedestal and support, wherein, described pedestal is arranged on the top end face of described wall boss, and described Bracket setting is on the top end face of described pedestal;
Described water guide layer is arranged on the top end face of described bedding, imports in the drainage channel of dewatering installation between described line for by water.
2. according to claim 1ly a kind ofly to it is characterized in that for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, described first wall and the second wall are provided with pvc pipe, and described spilled water hole is the inner chamber of described pvc pipe.
3. according to claim 1 a kind of for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, it is characterized in that, described pedestal is fixed on described wall boss by expansion bolt.
4. according to claim 1 a kind of for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, it is characterized in that, described water guide layer is made up of fibrous concrete or bituminous concrete.
5. according to claim 1 a kind of for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, it is characterized in that, described base plate, the first wall, the second wall and wall boss all adopt steel concrete to make.
6. according to claim 1ly a kind ofly to it is characterized in that for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, the gradient of described water guide layer is 3% ~ 5%.
7. according to claim 1 a kind of for discharge structure between the middle low speed magnetic suspension low line putting circuit two-wire location, it is characterized in that, described first wall is equal with the height of the second wall.
CN201610030944.2A 2016-01-18 2016-01-18 A kind of discharge structure between being used for the low line for putting circuit two-wire location of middle low speed magnetic suspension Active CN105484173B (en)

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