CN105256876A - Siphon type draining system of superhigh excavation section of road - Google Patents
Siphon type draining system of superhigh excavation section of road Download PDFInfo
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- CN105256876A CN105256876A CN201510662532.6A CN201510662532A CN105256876A CN 105256876 A CN105256876 A CN 105256876A CN 201510662532 A CN201510662532 A CN 201510662532A CN 105256876 A CN105256876 A CN 105256876A
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Abstract
The invention discloses a siphon type draining system of a superhigh excavation section of a road. With the system, a problem that drainage can not be carried out smoothly at the superhigh excavation road section of the highway or first-class highway can be solved. A mid-dividing zone water-collecting well is arranged below a drainage open drain at a certain distance; and the water-collecting well is connected to a road-side side ditch well corresponding to the water-collecting well position by a horizontal drain pipe. A cast-in-place concrete base coats the outside of the horizontal drain pipe; and galvanizing iron meshes are arranged at the two sides of the horizontal drain pipe respectively. The elevation of the bottom of the side ditch is lower than that of the bottom of the drainage open drain; and the bottom of the side ditch well is lower than that of the water-collecting well. The horizontal drain pipe is arranged in an inclined mode. On the basis of the structural design, the siphon objective is achieved; rainwater in the water-collecting well can be drained externally and a phenomenon of storage of lost of water can be avoided; and thus the safe driving can be guaranteed.
Description
Technical field
This invention relates to speedway, Class I highway technical field of drainage, specifically a kind of superelevation excavation section siphonic drainage system.
Background technology
The outer highway embankment superelevation section of Current Domestic arranges chute condition because side slope outside superelevation height side possesses, usual way be in a point band collecting well is set, transverse drain is picked out bottom collecting well, outlet directly passes to the chute of superelevation height side filled-up ground, just the ponding in superelevation section can be discharged smoothly.
Superelevation height side, highway excavation section is owing to limiting by orographic condition, and superelevation height dypass face charge for remittance is difficult to discharge outside roadbed.At present, domestic and international common way mainly contains following several:
1. open drain is set
By in a point band interval, both sides road kerb is set or block water-band water collected drain in the open drain of point band, by in the open drain of point band water longitudinally drained into fill out dig intersection, be then expelled to outside roadbed scope by the water of embankment section collecting well by excavation section open drain.
This superelevation excavation section drainage system shortcoming is that open drain size is less, when the longer catchment area of superelevation excavation section is larger, the discharge capacity of open drain can not meet the requirement of superelevation excavation section superelevation height dypass face charge for remittance, the water capacity of open drain is easily overflowed and is flowed back to road surface, cause superelevation height side surface gathered water, affect traffic safety.
2. point band collecting well in arranging
By freeboard section near marginal strip side or in point band inner side collecting well is set at a certain distance, the water of superelevation height skidding carriageway surfacing is collected and concentrates be discharged to trackside gutter by being embedded in transverse drain below road surface structare layer, by trackside gutter, superelevation height dypass face charge for remittance is longitudinally discharged outside roadbed scope.
The shortcoming of this superelevation excavation section drainage system is, the ditch depth of the gutter of freeboard section must all be deepened, and during no side connects, the transverse pipe of point band collecting well does not receive bottom gutter, the water of collecting well cannot be drained into gutter.Freeboard section completely gutter ditch body is deepened, then will inevitably cause the increasing of gutter quantity of masonry.Therefore, this drainage system is uneconomical, can have a certain impact to construction costs.
3. point band opening in arranging
Speedway and Class I highway divide band opening to discharge the charge for remittance in superelevation height dypass face in arranging.After arranging point band opening, during the road surface charge for remittance of superelevation height side can pass through, point band opening directly drains into the gutter of superelevation downside, is longitudinally discharged outside roadbed scope by water by the gutter of superelevation downside.
The shortcoming of this superelevation drainage pattern is, arranging apart from restricted of median opening." specification of the highway route design " (JTGD20-2006) specifies: before and after the three-dimensional grade separation of intercommunication, tunnel, grand bridge, service center facility, and integral subgrade, separated subgrade separation (converging) place, should median opening be set, except above-mentioned situation, in point band an aperture pitch be not less than 2km.Therefore, for the larger draining of longitudinal gradient excavation freeboard section smoothly, in arranging, divide a band opening to discharge excavation freeboard section charge for remittance, but for the superelevation excavation section that longitudinal gradient is less, then the road surface charge for remittance of superelevation height side is not easily discharged, and easily causes surface gathered water, affects traffic safety.
4. set up crown line (single width arranges crown slope)
Carried out the laying again of road camber by the impeded drainage region of the longer scope in section to superelevation height side "+2% ~-2% ", namely single width crown slope is set, reduce shoulder scope as far as possible.
The shortcoming of this superelevation drainage pattern is: arranging superelevation is because when vehicle travels on circular curve, can produce centrifugal force, and centrifugal force is by arranging circular curve and superelevation controls.On a highway, because the speed of a motor vehicle is very high, the mode that single width arranges road camber can make a big impact to traffic safety.
5. adjust gradient incline
Namely do not arrange superelevation drainage, the gradient incline only strengthening superelevation excavation section makes the water in superelevation section discharge.This way, when orographic condition allows, can take the method draining, but often excavation section orographic condition does not allow, or increasing gradient incline needs the amount of excavation increasing excavation section, and construction cost can improve greatly.
Given this, in order to discharge the road table water on superelevation height side line road faster, ensure traffic safety and extend speedway, Class I highway application life, improve the constructing benefits of road, need invention one at present badly to meet simultaneously arrange flexibly, saving construction cost, can the drainage of superelevation excavation section of guarantee driving safety.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of Road Super excavation section siphonic drainage system, for realizing the drainage problem in superelevation excavation section, and optimizing simultaneously and extending constructing benefits and the application life of road.
The technical solution adopted for the present invention to solve the technical problems is:
Road Super excavation section siphonic drainage system, comprises superelevation excavation section body, and superelevation excavation section body is made up of with a point band in centre the runway of both sides, it is characterized in that,
Road kerb adopts the flange stone of bottom of which has holes and flush curb alternately to arrange, and in point band both sides sand cushion is set, in described sand cushion, be embedded with the tapping pipe in point band open drain in being discharged to by the water of superelevation height dypass face inside configuration;
Keep at a certain distance away point band collecting well in arranging below described open drain, and described collecting well is stamped collecting well Well grate; And communication pipe is set in collecting well shaft bottom;
Described collecting well is connected to the trackside gutter well corresponding to collecting well position by transverse drain; And be coated with cast in situ concrete foundation at described transverse drain; At transverse drain two ends, galvanized wire mesh is set respectively;
Some gutter wells are by gutter vertical communication and be provided with overfall; And the rubble sewer of inner for downside road structure charge for remittance being discharged road structure is set in the side of gutter;
The absolute altitude of described gutter bottom of trench is lower than the absolute altitude of described open drain bottom of trench; And the shaft bottom of described gutter well is lower than the shaft bottom of collecting well, described transverse drain is obliquely installed.
Further, the spacing of described collecting well is determined by superelevation height dypass face charge for remittance; Described gutter well spacing is by superelevation downside execavated rockmass charge for remittance amount, superelevation downside road surface charge for remittance and decide from the water yield sum that collecting well imports, and the spacing of transverse drain divides band collecting well spacing and the smaller value both gutter well spacing in getting.
Further, described collecting well is formed by C25 concreting, and collecting well intervals 75m to 150m arranges a place.
Further, the degree of depth of collecting well is road structure layer thickness and transverse drain and concrete mats layer thickness sum, and the width of collecting well is the width of open drain.
Further, described road kerb adopts C25 concrete prefabricated, and kerb and the wide 1cm of kerb puzzle joint adopt M7.5 masonry of cement mortar and flat-joint pointing, adopts M7.5 cement mortar to clog and flat-joint pointing between kerb and road surface.
Further, described tapping pipe interval 10m is arranged, the permeable geotextiles of described tapping pipe periphery parcel.
Further, described transverse drain is glass reinforced plastic sand pipe, and wall thickness is not less than 8mm, ring stiffness >=10kPa.
Further, described cover plate for side ditch is reinforced concrete prefabricated board, and on cover plate for side ditch, arrange through hole or groove.
Further, in moist section, excavation gutter place arranges longitudinal drainage sewer, and longitudinal drainage sewer is arranged on below or the side-lower of gutter.
Further, the degree of depth of described collecting well is less than 1.5m, and longitudinal length is 60cm, and transverse width is 30cm.
The invention has the beneficial effects as follows:
By structure design, reach siphon object, fast the rainwater in collecting well can be carried out outer row, ensure not a large amount of water, ensure traffic safety.
Meanwhile, to the structure optimization of collecting well and gutter Jing Chu, the infiltration that can realize in roadbed drains fast, extends the application life of highway.
Provide a kind of drainage performance with combination property, application life, drainage performance are improved, and construction cost is also lower simultaneously.
Accompanying drawing explanation
Fig. 1 is the superelevation transient process schematic diagram of horizontal wall inscription.
Fig. 2 is freeboard section surface drainage cross-sectional drawing.
Fig. 3 is median strip, excavation superelevation section collecting well drawing.
Fig. 4 is the plan view of Fig. 3.
Fig. 5 is excavation superelevation section arrangement of Drainage figure.
Fig. 6 is the plan view of Fig. 5.
Fig. 7 is collecting well well comb drawing.
Fig. 8 is flange stone section.
Fig. 9 is flange stone facade.
Figure 10 is flush curb section.
Figure 11 is flush curb facade.
Figure 12 is that gutter is connected drawing with collecting well.
In figure: 11 flange stones, 12 flush curbs, 21 open drains, 22 collecting wells, 23 galvanized wire mesh, 24 collecting well Well grates, 3 transverse drains, 41 gutter wells, 42 gutters, 5 sand cushions, 51 tapping pipes, 6 rubble sewers, 7 cover plate pedestals, 71 cover plate for side ditchs, 8 longitudinal drainage sewers, 9 communication pipes.
Detailed description of the invention
The draining of superelevation section describes: the draining of superelevation section is the important content of speedway and Class I highway top drainage.When amount of precipitation is larger, rainwater can not be drained in time, in addition when filling roadbed and soil permeability that is curb is poor, the moisture infiltrating road surface can stagnate inner at road structure for a long time, pitch is peeled off from surface of aggregate, thus reduce the strength and stability of bituminous mixture, produce more serious earlier period damage, the most greatly reduce functional performance and the application life of whole road structure." highway drainage design specifications " (JTG/TD33-2012) the 4.4th article of middle clear stipulaties: " annual precipitation is less than the area of 400mm; two-way four-lane highway; can adopt and establish opening open channel scheme in median strip, and road surface current are discharged through road surface, inner side; Annual precipitation is more than or equal to the area of 400mm, or number of track-lines exceedes Four-Lane Road, and road surface, outside water should be got rid of by underdrainage system.Therefore in the large area of amount of precipitation on speedway and Class I highway, generally do not allow the horizontal cross flow of the surface water on half range road surface, upside to cross half range road surface, downside.The drainage collecting and drain this part surface water must be set in dividing strip edge.
When designing road and being longitudinally linear, design speed and circular curve curvature are two important parameters, when vehicle travels on circular curve, can produce centrifugal force, and centrifugal force is by restrictive curve radius or arrange superelevation to control.At freeboard section, the horizontal wall inscription value of kerb lane from the negative value normal crown (NC) condition change under full superelevation condition on the occasion of.The superelevation transient process of horizontal wall inscription as shown in Figure 1, position I-I is normal road camber structure, position II-II starts to rotate to zero horizontal wall inscription position for kerb lane, and position III-III road has unified horizontal wall inscription value, and position IV-IV represents that cross section continues to rotate to full superelevation.The Curve Design of freeboard section, causes the reduction of fast lane edge, superelevation height side and kerb lane is raised.This means that the charge for remittance of embankment superelevation height skidding carriageway surfacing cannot be discharged by the chute of roadbed side slope, the charge for remittance of excavation superelevation height skidding carriageway surfacing cannot be discharged by roadbed gutter, therefore superelevation height dypass face charge for remittance can only by point band both sides road kerb collect charge for remittance then water is caused in point band arrange drainage, by point band a drainage water is discharged freeboard section.
For existing defect, protection main body of the present invention is as follows:
The present invention relates to a kind of drainage system, the drainability that superelevation excavation paragraph superelevation height dypass face water increases superelevation downside road ditch simultaneously can be discharged smoothly, excavation superelevation height side paragraph Intermediate Gray road kerb adopts the flange stone 11 of bottom of which has holes and flush curb 12 alternately to arrange, as Fig. 8 to Figure 11, the open drain 21 arranged in point band during the charge for remittance centralized collection of the charge for remittance on the road surface of superelevation height side and road structure inside can be disposed to by the arrangement of this road kerb, then in arranging by keeping at a certain distance away below open drain, a point band collecting well 22 collects open drain charge for remittance, in the water of point band collecting well 22 inside be connected to trackside gutter well 41 corresponding to collecting well position by transverse drain 3.The water of trackside gutter well 41 is pooled to certain altitude, is longitudinally expelled to outside roadbed scope by gutter 42.Due to the absolute altitude of gutter 42 bottom of trench that is connected with gutter well lower than in point to be with the absolute altitude of open drain 21 bottom of trench, therefore when water level in gutter well arrives roadbed gutter, just longitudinally discharge outside roadbed scope quickly through gutter, gutter well 41 also has certain water storage function simultaneously, the water storage function of gutter well 41 makes the drainability of gutter greatly strengthen, thus ensure whole in the effectiveness and reliability of point band drainage system.The present invention is by rationally arranging drainage system in excavation superelevation section, contribute to preventing and treating superelevation height side running surface and the inner ponding of road structure, get rid of superelevation height dypass section charge for remittance fast and effectively, the water storage function of gutter well too increases the drainability of superelevation downside gutter simultaneously, thus the charge for remittance of excavation freeboard section is discharged to outside roadbed scope fast and effectively, prevent damage problem and the Exploration on Train Operation Safety of the road structure caused due to surface gathered water.The invention also discloses the construction method of hydrocone type excavation superelevation section drainage system.
As shown in Fig. 2 to Figure 12,
Problem one: the determination of siphonic drainage system setting space
Siphonic drainage system one is that a band collecting well 22 discharges superelevation height dypass face charge for remittance in can passing through point, two be gutter well 41 can help the gutter of superelevation downside discharge execavated rockmass charge for remittance, superelevation downside road surface charge for remittance and in point band collecting well charge for remittance.In in siphonic drainage system, the spacing of point band collecting well 22 is determined by superelevation height dypass face charge for remittance, reasonable Arrangement; Gutter well 41 spacing is by superelevation downside execavated rockmass charge for remittance amount, superelevation downside road surface charge for remittance and decide from the water yield sum that collecting well imports.Therefore the spacing that siphonic drainage system is arranged divides band collecting well 22 spacing and the smaller value both gutter well 41 spacing in getting, and ensures that draining is unobstructed.
Problem two: the specific requirement of each facility of drainage system
1, collecting well
Collecting well 22 is arranged in a point band, has C25 concreting to form.General 75 to the 150m of collecting well 22 spacing arranges a place, and the degree of depth of collecting well 22 and width are determined by road structure layer thickness and open drain width.The degree of depth of collecting well 22 is road structure layer thickness and glass reinforced plastic sand pipe and concrete mats layer thickness sum, and the width of collecting well 22 is the width of open drain.
2, galvanized wire mesh
The setting of galvanized wire mesh 23 divides the foreign material of band collecting well and gutter well to enter transverse drain 3 in preventing, and blocking transverse drain, is generally arranged on transverse drain two ends.Meanwhile, galvanized wire mesh can be dismantled, and facilitates the desilting work of transverse drain.
3, point band road kerb in
In a point band road kerb adopt the flange stone 11 of bottom of which has holes and flush curb 12 interval to arrange, bottom kerb, hole can discharge the water of road surface inside configuration, and flange stone centralized collection superelevation height dypass face charge for remittance is drained in open drain by flush curb and goes.Road kerb adopts C25 concrete prefabricated, and kerb and the wide 1cm of kerb puzzle joint adopt M7.5 masonry of cement mortar and flat-joint pointing, adopts M7.5 cement mortar to clog and flat-joint pointing between kerb and road surface.
4, sand cushion
In superelevation section, a point band generally hardens or arranges colored pond, and sand cushion 5 plays leveling effect.Meanwhile, sand cushion the water of superelevation height dypass face inside configuration can be discharged to by tapping pipe 51 in point band open drain 21 in go.
5, the PVC tapping pipe of Φ 5cm
Arrange a tapping pipe 51 every 10m, the permeable geotextiles of tapping pipe periphery parcel, permeable geotextiles can prevent and treat gravel and impurity blocking tapping pipe.Superelevation height dypass face inside configuration water is just discharged in open drain smoothly by tapping pipe and goes, thus prevents road structure internal water to be detained for a long time, and road pavement structure causes damage.
6, open drain
Superelevation section system-wide section all arranges open drain 21, and the effect of open drain is exactly road surface water and the road structure internal water of collecting superelevation height dypass section, and open drain 21 forms with C25 concreting, and size can be calculated according to charge for remittance gauge and design.
7, collecting well Well grate
Collecting well Well grate 24 is made with steel concrete, and the effect one of Well grate to allow the water of open drain flow into smoothly in the middle of collecting well, and two is to stop the impurity of open drain to drop in collecting well, blocking collecting well.
8, transverse drain
Transverse drain 3 is the facilities connecting collecting well and gutter well, and adopt glass reinforced plastic sand pipe, wall thickness is not less than 8mm, ring stiffness >=10kPa.
9, cast in situ concrete foundation
The effect one of cast-in-situ concrete concrete foundation 31 is cover glass steel clamp sandpipes; two be by transverse pipe with in point be with the joint of collecting well 22 and gutter well 41 to sealing up, point be with the junction of collecting well and gutter well and transverse drain to seep water in preventing.
10, rubble sewer
Rubble sewer 6 is the charges for remittance collecting superelevation downside road structure inside, by the rubble sewer of gutter, inner for downside road structure charge for remittance is discharged road structure.
11, cover plate pedestal
Cover plate pedestal 7 is built with C20 cast-in-situ concrete, is used for laying the facility of cover plate for side ditch 71.
12, gutter well
Collecting well charge for remittance is collected in the effect one of gutter well 41, discharges superelevation height skidding driveway surface and the inner charge for remittance of road structure; Two is when execavated rockmass charge for remittance amount is larger, and when gutter drainability is not enough, gutter well can play interim water storage function, thus increases the drainability of execavated rockmass gutter.Gutter well 41 is built by steel concrete to form, and the size of gutter well is determined by converging water yield cheek, and the shaft bottom of gutter well 41 lower than the shaft bottom of collecting well 22, must can make the water of collecting well be discharged to smoothly in gutter well, and form siphon effect like this.
13, cover plate for side ditch
Cover plate for side ditch 71 is reinforced concrete prefabricated boards, cover plate for side ditch and the same size of gutter manhole cover plate, can prefabricated units in enormous quantities, and on the cover board arranges through hole or groove.The effect of cover plate for side ditch prevents vehicle from driving in gutter and gutter well, protection traffic safety.
14, gutter well longitudinal drainage sewer
The facility of road surface inside configuration water and excavation section tidewater section underground water mainly discharged by longitudinal drainage sewer 8, moist section excavation gutter need arrange longitudinal drainage sewer, generally be arranged on below or the side-lower of gutter, therefore gutter well longitudinal drainage sewer is set mainly in order to the longitudinal drainage sewer along edge fit ditch.General employing infiltration sandstone and infiltration flexible pipe composition.
15, communication pipe
Divide band all will establish communication pipe in speedway and Class I highway, during general section communication pipeline is generally directly embedded in point planting soil be with, arrange in superelevation section in collecting well facility and divide in band, in the present invention, communication pipe 9 all passes from collecting well shaft bottom, here require that will there be certain thickness in collecting well 22 shaft bottom, collecting well shaft bottom thickness be 20cm just meet communication pipe requirement is set.
Problem three, the maintenance measure of drainage system
The main maintenance work of superelevation section dewatering in siphon type facility is desilting work, and the dredging measure at each position is described below:
In point band open drain 21 stock size all less, be generally 30cm × 30cm, therefore desilting is very convenient, and in manually entering, a point band spades just can complete desilting work.
In point band collecting well the degree of depth determine primarily of road structure layer thickness, express highway pavement Laminate construction thickness is substantially all less than 1m, therefore, the degree of depth of collecting well is substantially all less than 1.5m, longitudinal length is 60cm, transverse width is generally 30cm, and therefore maintenance personnel enter into a point band spades and just can complete desilting work.
The size of gutter well is similar with collecting well, and therefore desilting principle is similar with collecting well, can by manually completing desilting work.
If connect the transverse drain silting of gutter well and collecting well, there is high-pressure watercart in high speed maintenance department, water under high pressure can be utilized to dredge the silting thing in transverse drain, be flushed in gutter well by silting thing, and then carry out desilting in gutter well.
Problem four, the safety and effectiveness of drainage system
The gutter well shaft bottom absolute altitude of superelevation excavation section dewatering in siphon type facility will lower than in point band collecting well shaft bottom absolute altitude leave certain degree of depth, can ensure that the water of collecting well can drain into gutter well fast like this.Water level in gutter well is once exceed bottom gutter, just discharged by gutter, thus ensure that current can not pour in down a chimney in point band collecting well in, if there is the situation of extra torrential rain, collecting well and gutter well can play the effect of interim water storage, this guarantees the validity of superelevation excavation section siphonic drainage system.
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; relevant technical staff in the field, to various distortion of the present invention and improvement, all should expand in protection domain as determined in claims of the present invention.
Claims (10)
1. Road Super excavation section siphonic drainage system, comprises superelevation excavation section body, and superelevation excavation section body is made up of with a point band in centre the runway of both sides, it is characterized in that,
Road kerb adopts the flange stone (11) of bottom of which has holes and flush curb (12) alternately to arrange, and in point band both sides sand cushion (5) is set, in described sand cushion, to be embedded with in being discharged to by the water of superelevation height dypass face inside configuration the tapping pipe (51) gone in point open drain (21) of band;
Keep at a certain distance away point band collecting well (22) in arranging below described open drain (21), and described collecting well is stamped collecting well Well grate; And communication pipe (9) is set in collecting well shaft bottom;
Described collecting well (22) is connected to the trackside gutter well (41) corresponding to collecting well position by transverse drain (3); And be coated with cast in situ concrete foundation at described transverse drain; Galvanized wire mesh (23) is set respectively at transverse drain two ends;
Some gutter wells pass through gutter (42) vertical communication and are provided with overfall; And the rubble sewer of inner for downside road structure charge for remittance being discharged road structure is set in the side of gutter;
The absolute altitude of described gutter (42) bottom of trench is lower than the absolute altitude of described open drain (21) bottom of trench; And the shaft bottom of described gutter well (41) is lower than the shaft bottom of collecting well (22), described transverse drain (3) is obliquely installed.
2. Road Super excavation section according to claim 1 siphonic drainage system, is characterized in that, the spacing of described collecting well (22) is determined by superelevation height dypass face charge for remittance; Described gutter well (41) spacing is by superelevation downside execavated rockmass charge for remittance amount, superelevation downside road surface charge for remittance and decide from the water yield sum that collecting well imports, and the spacing of transverse drain divides the smaller value of band collecting well (22) spacing and gutter well (41) both spacing in getting.
3. Road Super excavation section according to claim 2 siphonic drainage system, it is characterized in that, described collecting well (22) is formed by C25 concreting, and collecting well (22) intervals 75m to 150m arranges a place.
4. Road Super excavation section according to claim 3 siphonic drainage system, it is characterized in that, the degree of depth of collecting well (22) is road structure layer thickness and transverse drain and concrete mats layer thickness sum, and the width of collecting well (22) is the width of open drain.
5. Road Super excavation section according to claim 1 siphonic drainage system, it is characterized in that, described road kerb adopts C25 concrete prefabricated, kerb and the wide 1cm of kerb puzzle joint, adopt M7.5 masonry of cement mortar and flat-joint pointing, between kerb and road surface, adopt M7.5 cement mortar to clog and flat-joint pointing.
6. Road Super excavation section according to claim 1 siphonic drainage system, is characterized in that, described tapping pipe interval 10m is arranged, the permeable geotextiles of described tapping pipe periphery parcel.
7. Road Super excavation section according to claim 1 siphonic drainage system, it is characterized in that, described transverse drain (3) is glass reinforced plastic sand pipe, and wall thickness is not less than 8mm, ring stiffness >=10KPa.
8. Road Super excavation section according to claim 1 siphonic drainage system, it is characterized in that, described cover plate for side ditch (71) is reinforced concrete prefabricated board, and on cover plate for side ditch, arrange through hole or groove.
9. Road Super excavation section according to claim 1 siphonic drainage system, is characterized in that, in moist section, excavation gutter place arranges longitudinal drainage sewer, and longitudinal drainage sewer (8) is arranged on below or the side-lower of gutter.
10. Road Super excavation section according to claim 1 siphonic drainage system, it is characterized in that, the degree of depth of described collecting well is less than 1.5m, and longitudinal length is 60cm, and transverse width is 30cm.
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| CN114991811A (en) * | 2022-08-03 | 2022-09-02 | 交通运输部公路科学研究所 | Structural design and water-proof and drainage method for karst tunnel to pass through underground river section |
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| CN105839489A (en) * | 2016-05-18 | 2016-08-10 | 山东省交通规划设计院 | New and used pavement splicing structure and construction method for ultrahigh section in highway extension project |
| CN110093965A (en) * | 2018-01-31 | 2019-08-06 | 中国二十冶集团有限公司 | A kind of water discharge method of construction site |
| CN108678120A (en) * | 2018-06-26 | 2018-10-19 | 山西省交通科学研究院 | A kind of loessial gulch bridge site drainage system |
| CN108678120B (en) * | 2018-06-26 | 2023-11-14 | 山西省交通科学研究院 | Loess gully bridge site drainage system |
| CN109024847A (en) * | 2018-07-17 | 2018-12-18 | 芜湖芬特勘测服务有限公司 | A kind of gutter structure of municipal works |
| CN109518789B (en) * | 2018-12-29 | 2021-07-02 | 苏交科华东(浙江)工程设计有限公司 | Water collecting, catchment and drainage treatment system for road to pass through water environment sensitive area |
| CN109518789A (en) * | 2018-12-29 | 2019-03-26 | 苏交科华东(浙江)工程设计有限公司 | A kind of road passes through the catchmenting of water environment sensitizing range, charge for remittance and disintegrating system in waste pipe |
| CN110241676A (en) * | 2019-06-11 | 2019-09-17 | 山西省交通规划勘察设计院有限公司 | A kind of execavated rockmass superelevation section surface drainage |
| CN110409252A (en) * | 2019-07-13 | 2019-11-05 | 四川玖壹建设工程有限公司 | A kind of pin-connected panel Prefabricated Concrete gutter synchronization road construction in layer method |
| CN111005312A (en) * | 2019-12-31 | 2020-04-14 | 广东粤路勘察设计有限公司 | Method for installing drainage port of mountain highway bridge |
| CN114703946A (en) * | 2022-05-05 | 2022-07-05 | 肖旭阳 | Highway surface accumulated water treatment structure and treatment method thereof |
| CN114960893A (en) * | 2022-05-31 | 2022-08-30 | 中国二十冶集团有限公司 | Cutting drainage system and construction method thereof |
| CN114991811A (en) * | 2022-08-03 | 2022-09-02 | 交通运输部公路科学研究所 | Structural design and water-proof and drainage method for karst tunnel to pass through underground river section |
| CN114991811B (en) * | 2022-08-03 | 2022-10-28 | 交通运输部公路科学研究所 | Structural design and water-proof and drainage method for karst tunnel to pass through underground river section |
| CN115506197A (en) * | 2022-08-19 | 2022-12-23 | 中交一公局集团有限公司 | Design and construction method for draining water in long-life flexible structure pavement and at edges |
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