CN209227315U - Road structure - Google Patents

Abstract

The utility model relates to a kind of road structures, including matrix；Embankment ontology, embankment ontology are set to matrix, and the upside of embankment ontology is equipped with waterproof coating；First separation layer, the first separation layer are set to the first predetermined depth of embankment ontology；And second separation layer, the second separation layer are set to the second predetermined depth of embankment ontology.First predetermined depth is located at maximum frozen depth or less, second predetermined depth is located at maximum frozen depth or more, in the first predetermined depth, the first separation layer is set, prevent lower part steam from migrating towards frozen region, in the second predetermined depth, the second separation layer is set, prevent surface layer steam from migrating towards frozen region, and the setting of waterproof coating further prevents surface water to migrate downward into, to effectively prevent steam to migrate the influence to frozen region, prevent the generation of pot cover effect, the incidence of roadbed disaster is reduced, maintenance cost is reduced.

Description

Road structure

Technical field

The utility model relates to the protection technology fields of road structure, more particularly to a kind of road structure.

Background technique

Pot cover effect refers to the phenomenon that soil moisture content of waterproof coating lower part dramatically increases, and pot cover effect often occurs In the high roadbed airport of northwest China Han Handiqu, also often occur in highway subgrade, railway bed and industry and civil buildings In place, wherein the migration of vaporous water is the main reason for leading to this phenomenon.Existing research is primarily upon liquid water and moves It moves, under congelation, vapour complex cannot be ignored, or even occupy leading role.Vapour complex will lead to moisture It is continued upward from level of ground water and migrates and be collected at freezing front, dramatically increased so as to cause the moisture content of freezing zone, go forward side by side one Step induces the engineering problems such as frozen swell and melt settlement, seriously affects the operation securities such as highway, railway, industrial and civil buildings and airport.

Further, since the mean annual precipitation of northwest China Han Handiqu is rare, and annual mean ground temperature is big, in practical work The control measure of liquid water is usually only simply provided in Cheng Zhong, such as: underdrain, sewer or seepage well, these measures can be dredged effectively The liquid water in embankment is arranged, but useful effect can not be played to the migration of retardance vaporous water.

Utility model content

Based on this, it is necessary to provide a kind of road structure.The road structure can prevent moving for liquid water especially vaporous water It moves, prevents the generation of pot cover effect, reduce the incidence of roadbed disaster.

Its technical solution is as follows:

A kind of road structure, including matrix；Embankment ontology, embankment ontology are set to matrix, and the upside of embankment ontology is equipped with not Permeable coating；First separation layer, the first separation layer are set to the first predetermined depth of embankment ontology；And second separation layer, second Separation layer is set to the second predetermined depth of embankment ontology.

Above-mentioned road structure, the first predetermined depth is located at maximum frozen depth hereinafter, the second predetermined depth is located at maximum freeze More than junction depth, the first separation layer is set in the first predetermined depth, prevents lower part steam from migrating towards frozen region, it is default second The second separation layer is arranged in depth, prevents surface layer steam from migrating towards frozen region, and the setting of waterproof coating further prevents Surface water migrates downward into, so that steam be effectively prevent to migrate the influence to frozen region, prevents the generation of pot cover effect, reduces The incidence of roadbed disaster reduces maintenance cost.

Technical solution is illustrated further below:

It in one of the embodiments, further include third separation layer, the third that third separation layer is set to embankment ontology is default Depth, third predetermined depth are greater than the first predetermined depth.

The first separation layer includes the first isolation film and the first protective layer, the first protective layer paving in one of the embodiments, Set on the two sides of the first isolation film；Or second separation layer include the second isolation film and the second protective layer, the second protective layer is layed in The two sides of second isolation film；Or third separation layer includes third isolation film and third protective layer, third protective layer is layed in third The two sides of isolation film.

The two sides of the first separation layer are equipped with the first layer of sand in one of the embodiments,；Or second separation layer two Side is equipped with the second layer of sand；Or the two sides of third separation layer are equipped with third layer of sand.

The first drainage element for draining is embedded in the first layer of sand in one of the embodiments,；Or second in layer of sand It is embedded with the second drainage element for draining；Or the third drainage element for draining is embedded in third layer of sand.

The first drainage element includes the first drainpipe and the second drainpipe in one of the embodiments, the first drainpipe Tube wall is equipped with multiple first through hole, and the tube wall of the second drainpipe is equipped with multiple second through-holes, the first drainpipe and the second drainpipe It is cross-linked and forms draining web frame.

The first drainpipe is additionally provided with the first filtration members for filtering in one of the embodiments, the first filtration members with First through hole is correspondingly arranged；Or second drainpipe be additionally provided with the second filtration members for filtering, the second filtration members and the second through-hole It is correspondingly arranged.

Embankment ontology is additionally provided with slope drainage ditch in one of the embodiments, slope drainage ditch and the first drainage element Discharge ends are correspondingly arranged.

Slope drainage ditch includes longitudinal drainage ditch and transverse drain ditch in one of the embodiments, longitudinal drainage ditch with Transverse drain ditch is staggered.

Plane where the first separation layer is in the first default inclination angle setting in one of the embodiments,；Or second separation layer Place plane is in the second default inclination angle setting；Or plane where third separation layer presets inclination angle setting in third.

Detailed description of the invention

Fig. 1 is the overall structure diagram of road structure in embodiment；

Fig. 2 is the left view of the embankment ontology in Fig. 1 embodiment；

Fig. 3 is the A partial structural diagram in Fig. 1 embodiment；

Fig. 4 is the top view of the first drainage element in Fig. 1 embodiment；

Fig. 5 is the partial enlarged view of the first drainpipe in Fig. 4.

Attached drawing mark explanation:

100, matrix, 200, embankment ontology, 210, slope drainage ditch, 211, longitudinal drainage ditch, 212, transverse drain ditch, 220, waterproof coating, the 310, first separation layer, 311 first layers of sand, the 312, first drainage element, the 3121, first drainpipe, 3122, the second drainpipe, 3123, first through hole, the 320, second separation layer, the 321, second layer of sand, 330, third separation layer, 331, Third layer of sand, 332, third drainage element.

Specific embodiment

The embodiments of the present invention are described in detail with reference to the accompanying drawing:

It should be noted that it can be directly in another element when alleged element is with another element " fixation " in text Above or there may also be elements placed in the middle.When an element is considered as with another element " connection ", it be can be directly It is connected to another element in succession or may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element When "upper", intermediary element is not present.Term as used herein "vertical", "horizontal", "left" and "right" and similar table It states for illustrative purposes only, is not meant to be the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet Include any and all combinations of one or more related listed items.

Embodiment as shown in Figures 1 to 5 provides a kind of road structure, including matrix 100；Embankment ontology 200, is filled out Fang Benti 200 is set to matrix 100, and the upside of embankment ontology 200 is equipped with waterproof coating 220；First separation layer 310, first Separation layer 310 is set to the first predetermined depth of embankment ontology 200；And second separation layer 320, the second separation layer 320 are set to embankment Second predetermined depth of ontology 200.

First predetermined depth is located at maximum frozen depth hereinafter, the second predetermined depth is located at maximum frozen depth or more, The first separation layer 310 is arranged in first predetermined depth, prevents lower part steam from migrating towards frozen region, in the second predetermined depth setting the Two separation layers 320 prevent surface layer steam from migrating towards frozen region, and the setting of waterproof coating 220 further prevents surface layer Water body migrates downward into, so that steam be effectively prevent to migrate the influence to frozen region, prevents the generation of pot cover effect, reduces road The incidence of base disaster reduces maintenance cost.

In general, the liquid water in embankment ontology 200 is discongested by the way of setting underdrain, sewer or seepage well, even if having In view of discongesting vaporous water and taking measures as 37 lime earth layer is arranged, however using effect is poor, just fails at one month or so, It can not play the role of long-term isolation vaporous water；Although freeze-off time is shorter, the migration of too water will lead to coarse-grained soil top The moisture content in portion dramatically increases, this explanation: when the moisture at level of ground water has little time to migrate to freezing front, the moisture at top (including liquid water and vaporous water) migration may still lead to moisture content and dramatically increase, and 37 lime earth layer does not play any work at this time With；In addition, double influence of the gaseous state water condensation by matric suction and temperature in the porous media soil body, vaporous water would be possible to At an arbitrary position rather than only condensing deep mutually becomes liquid water out.

In the present embodiment, embankment ontology 200, which is constructed, is arranged in the top of matrix 100, which does not repeat, current determining After the maximum frozen depth d1 of embankment ontology 200, the first predetermined depth is determined in the position below maximum frozen depth d1, The position of maximum frozen depth d1 or more determines the second predetermined depth, thus in the work progress of subsequent embankment ontology 200, The first separation layer 310 is arranged in first predetermined depth, and the second separation layer 320 is arranged in the second predetermined depth.Pass through the first separation layer 310, it prevents the steam below of the first separation layer 310 from migrating toward upper, by the first separation layer 310, places the first separation layer 310 Above steam is towards low travel, to be effectively isolated the migration of steam towards frozen region, plays and avoids generating pot cover effect Effect.

As depicted in figs. 1 and 2, embankment ontology 200 is provided with waterproof coating 220, and waterproof coating 220 avoids table The moisture of layer migrates downward.

Further, the uper side surface of embankment ontology 200 is additionally provided with roadbed cover board.

Research shows that: even if freeze-off time is very short, the moisture content of the waterproof 220 lower part soil body of coating also can significantly increase Add.This shows: when freeze-off time is shorter, the moisture for causing moisture content to dramatically increase can not come from level of ground water The moisture of itself at the top of from the soil body, including liquid water and vaporous water.The depth of freezing at this time is smaller, and the steam at this is moved It moves, maximum frozen depth d1 the first separation layer 310 below can not play useful effect, therefore, by maximum frozen depth The second separation layer 320 is arranged in the second predetermined depth of d1 or more, is isolated with playing the role of migrating the part steam, is kept away Exempt from the moisture to migrate to frozen region.

It should be noted that the first predetermined depth is configured as needed, the purpose of the first separation layer 310 is in order to anti- The water body or gas that only the water of level of ground water generates migrate upward, to avoid the formation of pot cover effect or aggravation pot cover effect.

Embodiment as shown in Figure 1, further includes third separation layer 330, and third separation layer 330 is set to embankment ontology 200 Third predetermined depth, third predetermined depth are greater than the first predetermined depth.

Gaseous state water flux can be gradually reduced along the peak value of depth distribution with freeze-off time, the position where vaporous water flux peak Setting can also gradually change, and in the depth direction be in gradually increase trend；In addition, the peak position will also freeze lower than corresponding Depth, and in non-freezing zone.It is evaporated from underground water position and the vaporous water migrated upwards is the master for leading to pot cover effect Moisture source is wanted, vaporous water will be migrated continuously to freezing front in freeze-off time, and vapour complex not only results in Freezing zone moisture dramatically increases, and the moisture that will also result in non-freezing zone increases.

It is obtained according to monitoring data, the most shallow water table d2 of regional embankment ontology 200 occurs for pot cover effect, i.e., due to not The most shallow position of groundwater level depth caused by controllable and unavoidable natural cause；Measure the Tu Shuite of embankment ontology 200 Curve curve is levied, the correlated fitting parameter of van Genuchten model is obtained；According to the design requirement of embankment ontology 200, obtain The primary condition and boundary condition of embankment ontology 200；According to unsaturated soil water transport theory, capillary water is calculated and fills out at this The maximum vertical penetration d3 of Fang Benti 200；

Third separation layer is arranged in predeterminated position (i.e. third predetermined depth) more than capillary water maximum vertical penetration d3 330, the second separation layer 320 is set to the top of third separation layer 330 namely third predetermined depth is located at the first predetermined depth or less Or third predetermined depth is greater than the first predetermined depth.

Third predetermined depth in the first predetermined depth hereinafter, and third predetermined depth in most shallow water table d2 or more, by It is migrated upwards in the steam that underground water generates, third separation layer 330 is set, the steam of the bottommost is avoided to migrate toward upper.

Migrated toward upper it should be noted that third separation layer 330 is used to that the steam of the bottom to be isolated, and to liquid water and Vaporous water plays retardation, due to the steam position of the bottom namely the position of most shallow water table d2 and most Spacing between the big position depth of freezing d1 is larger, and there is also steam in the embankment ontology 200 in the section, therefore, this When the first separation layer 310 can regard the supplement to third separation layer 330 as, with play preferably isolation steam towards frozen region The effect of migration；In addition, causing moisture to laterally approach into embankment ontology encountering the natural causes such as heavy rainfall or other factors When in 200, the first separation layer 310 can also play the retardation to steam.

Embodiment as shown in Figure 1, the first separation layer 310 include the first isolation film and the first protective layer, the first protective layer It is layed in the two sides of the first isolation film；Or second separation layer 320 include the second isolation film and the second protective layer, the second protective layer paving Set on the two sides of the second isolation film；Or third separation layer 330 includes third isolation film and third protective layer, third protective layer is laid with In the two sides of third isolation film.

First separation layer 310 includes the first isolation film and the first protective layer set on the first isolation film two sides, the first protection Layer plays the role of protecting the first isolation film.

Further, the first isolation film includes HDPE (High density polyethylene) geomembrane, the first isolation Layer 310 includes geotextiles, and the two sides of HDPE geomembrane are laid with geotextiles.

The two sides up and down of HDPE geomembrane are closely laid with one layer of geotextiles respectively, and geotextiles and geomembrane are tightly linked, simultaneously Form two cloth, one film；Geotextiles play a protective role to HDPE geomembrane, and geotextiles have preferable permeability performance, can The moisture of HDPE geotechnique's film surface is subjected to white-out in time.

Often ignore the prevention and treatment of vaporous water in Practical Project, or is laid with one layer of common geotechnique when carrying out liquid water prevention and treatment Film, this can only play certain preventive and therapeutic effect to liquid water, and nonsensical to the prevention and treatment of vaporous water, not can avoid vaporous water Migration.

And in the present embodiment, HDPE geomembrane, that is, density polyethylene film with high is that have a kind of flexible geosynthetics, thickness For 0.2-0.4mm, have excellent low-temperature resistance, anti-aging, corrosion resistance and excellent ductility and high tensile strong Degree, Applicable temperature range is wide (- 70 DEG C~+110 DEG C), long service life.In addition, HDPE geomembrane has very high barrier properties Can, the permeance property of liquid water is only 1 × 10^-19M/s, and geomembrane inner polymeric material void among particles are very small, i.e. gas The diffusion coefficient of state water be also it is extremely low, make HDPE geomembrane have excellent water proof vapor-proof performance.These excellent performances are general What logical geomembrane did not had, therefore, for carrying out water proof every vapour, and it is arranged and plays preferably isolation effect in the first predeterminated position Fruit.

Further, HDPE geomembrane is arranged using welding manner, ensures that weld seam is closely knit effectively.

Similarly, which is not described herein again for second separation layer 320, third separation layer 330.

Embodiment as shown in Figure 1, the two sides of the first separation layer 310 are equipped with the first layer of sand 311；Or second separation layer 320 two sides are equipped with the second layer of sand 321；Or the two sides of third separation layer 330 are equipped with third layer of sand 331.

First layer of sand 311, the second layer of sand 321 and third layer of sand 331 are for cooling convenient for steam and form water body stream Out, therefore, the first layer of sand 311, the second layer of sand 321 and third layer of sand 331 should all have good permeance property.

Embodiment as shown in Figure 1 to Figure 3 is embedded with the first drainage element 312 for draining in first layer of sand 311；Or The second drainage element for draining is embedded in second layer of sand 321；Or the third row for draining is embedded in third layer of sand 331 Water part 332.

First drainage element 312, the second drainage element and third drainage element 332 are used to drain, and therefore, can carry out as needed It is arranged, in embodiment as shown in Figure 1, the first layer of sand 311 is equipped with the first drainage element 312, and third layer of sand 331 is drained equipped with third Part 332, and the second drainage element is not provided in the second layer of sand 321, to meet actual needs, which is not described herein again.

Embodiment as shown in Figure 4 and Figure 5, the first drainage element 312 include the first drainpipe 3121 and the second drainpipe 3122, the tube wall of the first drainpipe 3121 is equipped with multiple first through hole 3123, and the tube wall of the second drainpipe 3122 is equipped with multiple the Two through-holes, the first drainpipe 3121 and the second drainpipe 3122 are cross-linked and form draining web frame.

The condensation water body of first through hole 3123 and the second through-hole in corresponding first layer of sand 311 penetrates into first row In water pipe 3121 or the second drainpipe 3122, so that water body is discharged.

In one embodiment, the first drainpipe 3121 is additionally provided with the first filtration members for filtering, the first filtration members with First through hole 3123 is correspondingly arranged；Or second drainpipe 3122 be additionally provided with the second filtration members for filtering, the second filtration members with Second through-hole is correspondingly arranged.

First filtration members or the second filtration members are respectively used to filter out outside the first drainpipe 3121 or the second drainpipe 3122 The layer of sand of side ensures proper drainage to avoid resulting in blockage.

Further, the first filtration members or the second filtration members are filter screen, filter cloth etc., and those skilled in the art can basis It needs specifically to be selected, which is not described herein again.

Embodiment as shown in Figure 2, embankment ontology 200 are additionally provided with slope drainage ditch 210, slope drainage ditch 210 and first The discharge ends of drainage element 312 are correspondingly arranged.

The side of embodiment as shown in Figure 2, embankment ontology 200 is arranged and is equipped with slope drainage ditch 210 in the gradient, the The water body edge that the discharge ends of one drainage element 312 are corresponding with the groove of slope drainage ditch 210, the first drainage element 312 is enable to be discharged Slope drainage ditch 210 is drained.

The discharge ends of first drainage element 312 can be one end of the first drainpipe 3121, can also with make the second drainpipe 3122 one end, it is of course also possible to be specifically arranged as needed, which is not described herein again.

The discharge ends of second drainage element and the discharge ends of third drainage element 332 are correspondingly arranged with slope drainage ditch 210, with Convenient for draining by slope drainage ditch 210, which is not described herein again.

Further, slope drainage ditch 210 includes longitudinal drainage ditch 211 and transverse drain ditch 212, longitudinal drainage ditch 211 It is staggered with transverse drain ditch 212.Longitudinal drainage ditch 211 and the first drainage element 312/ second drainage element/third drainage element 332 Discharge ends be correspondingly arranged it is a plurality of, transverse drain ditch 212 be arranged one, for the water body of longitudinal drainage ditch 211 to be converged Stream.

In addition, transverse drain ditch 212 is connected with drainage ditch, and water body is smoothly discharged.

Certainly, as needed, underdrain, sewer or seepage well etc. can also be buried by liquid water alienation in level of ground water position, Which is not described herein again.

Embodiment as shown in Figure 1,310 place plane of the first separation layer is in the first default inclination angle setting；Or second isolation 320 place plane of layer are in the second default inclination angle setting；Or 330 place plane of third separation layer presets inclination angle setting in third.

As shown in Figure 1, the left end of the first separation layer 310 tilts towards lower left quarter, makes the first whole separation layer 310 in first Default angle setting, certainly, also corresponding tilt is arranged the first layer of sand 311 of 310 two sides of the first separation layer, the first drainage element 312 Also it is arranged in corresponding tilt, convenient for the water body in the first drainage element 312 is discharged.

Similarly, which is not described herein again for second separation layer 320 and third separation layer 330.

Further, the default inclination angle of the first default inclination angle, the second default inclination angle and third is equal, is 4 °.

The steam migration that road structure provided in this embodiment is particularly suitable for unsaturation roadbed causes pot cover effect problem Prevention.According to the theory of pot cover effect it is found that vapour complex will lead at freezing front the moisture content of (i.e. frozen region) It is significantly increased, the soil particle at freezing front can be tightly linked integrally by ice crystal.

As shown in Figure 1, the maximum for obtaining the regional embankment ontology 200 of pot cover effect generation is freezed according to long-term monitoring data Depth d1；In maximum frozen depth d1 predetermined depth below (i.e. the first predetermined depth position), the first separation layer 310 is set, The two sides up and down of first separation layer 310 are laid with the first layer of sand 311, the first layer of sand 311 with a thickness of preset thickness, and first every The surface of first layer of sand 311 of 310 upside of absciss layer is not less than 15cm at a distance from maximum frozen depth d1, to prevent moisture in soil Damage of the ice crystal to two cloth, one film when freezing, also effectively can prevent vaporous water from migrating upwardly to frozen region.

First layer of sand 311 is coarse sands layer, and the first layer of sand 311, which is correspondingly arranged with the first separation layer 310 and presets in first, to incline The gradient of angle setting namely the first layer of sand 311 is 4 °, and coarse sand sieving ensures that partial size is in 1mm-2mm range, the first separation layer The thickness of first layer of sand 311 of 310 two sides is 15cm, prevents stone in soil etc. from piercing through two cloth, one film；Meanwhile the infiltration of coarse sand Permeability can be good, and moisture is discharged in time, prevents moisture from gathering here.

As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, the first draining is equipped in the first layer of sand 311 of 310 two sides of the first separation layer Part 312, the first drainage element 312 include more first drainpipes 3121 and the second drainpipe of Duo Gen 3122, the first drainpipe 3121 It is arranged in spacing, the second drainpipe 3122 is arranged in spacing, and between the first drainpipe 3121 and the second drainpipe 3122 staggeredly It is arranged, to form draining web frame, drains web frame and the first separation layer 310 is correspondingly arranged and is arranged in the first default inclination angle, Namely in 4 ° of gradient settings, the tube wall of the first drainpipe 3121 is equipped with multiple first through hole 3123, the second drainpipe 3122 Tube wall is equipped with multiple second through-holes, and the moisture in the first layer of sand 311 is entered corresponding by first through hole 3123 or the second through-hole First drainpipe 3121 or the second drainpipe 3122, due to being communicated in the pipe of the first drainpipe 3121 and the second drainpipe 3122, To make moisture converge in the first drainpipe 3121 or the second drainpipe 3122, or directly pass through the end of the first drainpipe 3121 Portion or the discharge of the end of the second drainpipe 3122.

First drainpipe 3121 is that the diameter of round tube and the first drainpipe 3121 is 15cm, adjacent first drainpipe Spacing between 3121 is 5m；Or second drainpipe 3122 be the diameter of round tube and the second drainpipe 3122 be 15cm, it is adjacent Spacing between second drainpipe 3122 is 5m.

The second separation layer 320 is arranged in the predeterminated position (i.e. the second predetermined depth) that maximum freezes d1 or more, and (such as second is pre- If depth can be 220 or less the depths 30cm of waterproof coating on embankment ontology 200), in the two sides of the second separation layer 320 Be laid with the second layer of sand 321 respectively, the second layer of sand 321 with a thickness of preset thickness.

Second layer of sand 321 and the second separation layer 320 are correspondingly arranged and in the second default inclination angle setting namely the second layers of sand 321 gradient is 4 °.321 thickness of the second layer of sand of second separation layer, 320 two sides is 10cm, and the second layer of sand 321 selects coarse sand, Coarse sand sieving guarantees that partial size is within the scope of 1mm-2mm, and coarse sands layer plays the role of protecting two cloth, one film and draining, and coarse sand is to freeze Swollen insensitivity soil, the second layer of sand 321 are that frost heave can play preventive and therapeutic effect.As shown in Figure 1, due to the first separation layer 310 In the presence of, and the buried depth of the second separation layer 320 is shallower, therefore, as needed, no longer embedded second drainage element in the second layer of sand 321.

As shown in Figure 1, third is arranged in (namely third predetermined depth) at the above 50cm of capillary water maximum vertical penetration d3 Separation layer 330, the two sides of third separation layer 330 are respectively provided with third layer of sand 331, and third layer of sand 331 is corresponding with third separation layer 330 Be arranged and be in third preset inclination angle setting namely third layer of sand 331 the gradient be 4 °, third layer of sand 331 be coarse sand, coarse sand mistake Sieve ensures that partial size is in 1mm-2mm range, third layer of sand 331 with a thickness of 15cm, coarse sands layer plays the protection to two cloth, one film Effect；

Be embedded with third drainage element 332 in the third layer of sand 331 of 330 two sides of third separation layer, third drainage element 332 with Similarly, which is not described herein again for the setting of first drainage element 312.

It should be noted that the first drainage element 312 and the first protective layer are in close contact, the second drainage element and the second protective layer It is in close contact, such as the first drainpipe 3121 or the second drainpipe 3122 are in close contact with geotextiles.

The present embodiment has the advantages that

One, the migration that can effectively block liquid water and vaporous water, effectively prevent the generation of pot cover effect, and prevent due to The problems such as pot cover effect bring frost heave, thaw collapse；

Two, structure is simple, and material is taken conveniently, cheap, not will increase additional engineering burden, and easy for construction fast It is prompt；

Three, practicability is wide, can be applied not only to the high roadbed engineering of cold drought-hit area, is also applied for highway subgrade, railway road The engineerings such as base and work China Democratic National Construction Association place, substantially increase the service life of these engineerings.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of road structure characterized by comprising

Matrix；

Embankment ontology, the embankment ontology are set to described matrix, and the upside of the embankment ontology is equipped with waterproof coating；

First separation layer, first separation layer are set to the first predetermined depth of the embankment ontology；And

Second separation layer, second separation layer are set to the second predetermined depth of the embankment ontology.

2. road structure according to claim 1, which is characterized in that it further include third separation layer, the third separation layer Set on the third predetermined depth of the embankment ontology, the third predetermined depth is greater than first predetermined depth.

3. road structure according to claim 2, which is characterized in that first separation layer includes the first isolation film and the One protective layer, first protective layer are layed in the two sides of first isolation film；

Or second separation layer include the second isolation film and the second protective layer, second protective layer be layed in described second every Two sides from film；

Or the third separation layer includes third isolation film and third protective layer, the third protective layer be layed in the third every Two sides from film.

4. road structure according to claim 3, which is characterized in that the two sides of first separation layer are equipped with first Layer of sand；Or the two sides of second separation layer are equipped with the second layer of sand；Or the two sides of the third separation layer are equipped with Three layers of sand.

5. road structure according to claim 4, which is characterized in that be embedded with for draining in first layer of sand One drainage element；Or the second drainage element for draining is embedded in second layer of sand；Or it is buried in the third layer of sand useful In the third drainage element of draining.

6. road structure according to claim 5, which is characterized in that first drainage element includes the first drainpipe and the Two drainpipes, the tube wall of first drainpipe are equipped with multiple first through hole, and the tube wall of second drainpipe is equipped with multiple the Two through-holes, first drainpipe and second drainpipe are cross-linked and form draining web frame.

7. road structure according to claim 6, which is characterized in that first drainpipe is additionally provided with for filtering One filtration members, first filtration members are correspondingly arranged with the first through hole；Or second drainpipe is additionally provided with for filtering The second filtration members, second filtration members are correspondingly arranged with second through-hole.

8. road structure according to claim 6, which is characterized in that the embankment ontology is additionally provided with slope drainage ditch, institute It states slope drainage ditch and the discharge ends of first drainage element is correspondingly arranged.

9. road structure according to claim 8, which is characterized in that the slope drainage ditch includes longitudinal drainage ditch and cross To gutter, the longitudinal drainage ditch is staggered with the transverse drain ditch.

10. according to the described in any item road structures of claim 2-9, which is characterized in that plane where first separation layer In the first default inclination angle setting；Or plane where second separation layer is in the second default inclination angle setting；Or the third isolation Plane where layer presets inclination angle setting in third.