CN207904690U - One kind is anti-to topple over aquaretic kerbstone - Google Patents

Abstract

Resist the utility model discloses one kind and toppling over aquaretic kerbstone, including mixing arrangement notched section and non-notched section, the spacing of two neighboring notched section is no more than 5m；Non-notched section includes bottom surface, elevationally outward face, inside roadbed mating surface, two lateral recess mating surfaces and arc top surface；The height in face is more than the height of inside roadbed mating surface elevationally outward；Elevationally outward facing towards grass planting ditch or sunk type greenery patches, inside roadbed mating surface and paved road phase split；Arc top surface includes sequentially connected outer flat segments, outer arcuate section, inner arc section peace forthright base segment since face elevationally outward；Outer circle segmental arc and inner circle segmental arc junction are tangent；The top surface of notched section is provided at least one strip projected parts, and strip projected parts are met to the gradient direction of paved road and are obliquely installed, and the longitudinal section of strip projected parts is semicircle.While overturning-preventing performance obviously increases, cost increasing degree is obviously controlled the application.In addition, the performance for collecting rainfall runoff is significantly improved.

Description

One kind is anti-to topple over aquaretic kerbstone

Technical field

Resist the utility model is related to municipal works technical field, especially one kind and toppling over aquaretic kerbstone.

Background technology

To solve the increasingly severe waterlogging knead dough source pollution problem in city in recent years, building sponge city becomes industry The Compulsory Feature of common recognition and country.Publication on October 6th, 2015《The General Office of the State Council is about propulsion sponge urban construction Instruction》It is even more to be distinctly claimed through sponge urban construction in (Office of the State Council sends out (2015) No. 75), 70% rainfall is disappeared on the spot It receives and utilizes；To the year two thousand twenty and the year two thousand thirty, completed region of the city reach target call area to reach respectively 20% and 80% with On.

One of the core of sponge urban construction is exactly to promote low influence exploitation stormwater facility, that is, urban green space is high before changing In the mentality of designing of surrounding ground, the sky of the stagnant storage of rainwater is provided by building the technical measures such as grass planting ditch and sunk type greenery patches Between, retention rainwater runoff pollution；But these new technical measures bring the change in many details, with traditional mentality of designing There are many conflict places, it would be highly desirable to solve one by one.

According to traditional mentality of designing, greenery patches is usually the hard paving ground (including road, the same below) higher than periphery, Without the concern for the inflow and collection of rainwater；As the kerbstone on boundary between greenery patches and hard paving ground, since back has It is higher by the greenery patches support of hard paving ground, therefore also without the concern for how preventing from toppling over.And according to sponge urban construction Theory, the low exploitation stormwater facility that influences such as grass planting ditch and sunk type greenery patches should be less than the hard paving ground on periphery on vertical, And recess (notch) is reserved to facilitate the collection and inflow of rainwater in kerbstone；Simultaneously as back loses the support in greenery patches, Kerbstone must take into consideration overturning-preventing measure, such as bottom intensification etc., refer to attached drawing 1.But the recess of kerbstone (notch) direction It is often vertical with rainfall runoff direction, cause receipts water effect very poor, when surface runoff height is 10 millimeters, effective receipts of actual measurement Water rate is less than 30%, refers to attached drawing 2.

The above-mentioned measure deepened using bottom is not only added significantly to cost, averagely increases by 100% come overturning-preventing, and Practical effect is unsatisfactory, the reason is as follows that：Kerbstone center of gravity G is overlapped with yawing axis O, therefore the ability of kerbstone antidumping is equal Come from the holding force M of underlying soil, kerbstone its own gravity W has no help to antidumping, refers to attached drawing 3；When kerbstone outside It slightly being deflected under the action of power F, yawing axis O is displaced downwardly to kerbstone bottom, is no longer overlapped with the direction of kerbstone its own gravity W, The holding force M of underlying soil just no longer works at this time, and the direction of kerbstone its own gravity W is moved to kerbstone yawing axis O's Outside (lean on greenery patches side), so when kerbstone itself gravity accelerate toppling for kerbstone instead, refer to attached drawing 4.

Utility model content

The technical problems to be solved in the utility model is in view of the above shortcomings of the prior art, and to provide and a kind of anti-topple over rush The kerbstone of draining, this is anti-, which to topple over aquaretic kerbstone, can effectively improve the stability of kerbstone, and significantly improve road The aqueous energy of receipts of kerb recess, to ensure periphery hard paving ground and the low safety and stability fortune for influencing exploitation stormwater facility Row can be widely used for the various low influence exploitation stormwater facilities such as grass planting ditch and sunk type greenery patches.

In order to solve the above technical problems, the technical solution adopted in the utility model is：

One kind is anti-to topple over aquaretic kerbstone, including mixing arrangement and in the notched section of straight line and non-notched section, The spacing of two neighboring notched section is no more than 5m.

Non-notched section of longitudinal section is L-shaped, non-notched section include bottom surface, elevationally outward face, inside roadbed mating surface, two Lateral recess mating surface and arc top surface；Wherein, bottom surface is piled up on curb basal plane, elevationally outward face and inside roadbed split Face is vertically arranged in parallel, and the height in face is more than the height of inside roadbed mating surface elevationally outward；Elevationally outward facing towards plant Careless ditch or sunk type greenery patches, inside roadbed mating surface and paved road phase split；Two lateral recess mating surfaces will elevationally outward Face is connected with inside roadbed mating surface；Arc top surface includes sequentially connected outer flat segments, outer arc since face elevationally outward Shape section, inner arc section peace forthright base segment；Straight roadbed section height and paved road height are equal, the center of circle of outer arcuate section to Under, outer circle segmental arc and inner circle segmental arc junction are tangent, and the radius more than inner circle segmental arc of the radius of outer circle segmental arc, outer flat segments Length be less than straight roadbed section length.

The longitudinal section of notched section is rectangular, the top surface of notched section and straight roadbed section flush；The top surface of notched section is arranged There are at least one strip projected parts, strip projected parts to meet to the gradient direction of paved road and be obliquely installed, the longitudinal section of strip projected parts is It is semicircle.

The angle that strip projected parts are in paved road width direction is 10-30 °.

The angle that strip projected parts are in paved road width direction is 14 °.

The top surface of notched section is provided with two strip projected parts being mutually parallel.

Several stripeds being mutually parallel are provided on strip projected parts, each striped is parallel with strip projected parts.

The height in face is 2 times of height of inside roadbed mating surface elevationally outward.

The a length of 800mm in bottom surface, width 350mm；The height in face is 300mm, the height of inside roadbed mating surface elevationally outward Width for 150mm, outer flat segments is 20mm, and the radius of outer arcuate section is 150mm, and the chord length of outer arcuate section is 137mm, inner arc The radius of shape section is 100mm, and the chord length of inner arc section is 93mm, and the width of straight roadbed section is 100mm.

The width of notched section is 350mm, and the length of notched section is 200mm, and the height of notched section is 150mm, strip projected parts Length be 320mm.

The radius of strip projected parts is 10mm.

The utility model has the advantages that：

(1) while overturning-preventing performance obviously increases, cost increasing degree is obviously controlled.Curb on existing market Stone is mainly to prevent from toppling over by increasing buried depth, and by 300 millimeters (grass planting ditch and sunk type greenery patches is not used in kerbstone height When) increasing to 600 millimeters (when using grass planting ditch and sunk type greenery patchess), cost increases by 100%, but using effect shows actually to incline More than 2%, (main cause is because being used as kerbstone back grass planting ditch and sunk type greenery patches not only vertical low but also soil property to rate It is loose, effective support can not be provided).The utility model cost only increases by 25% (based on concrete amount), and center of gravity is low, is not required to Increase buried depth or stablize itself by back, therefore anti-topples over that performance is good and easy for construction, using effect shows reality Topple over rate and is less than 0.3%.

(2) performance for collecting rainfall runoff is significantly improved.Kerbstone on existing market mainly passes through recess Rainwater is collected, due to the influence of the gradient, the direction of rainfall runoff is easy to form short stream often perpendicular to recess, leads to big portion Divide rainfall runoff to cross recess and flows to downstream, such as：According to experiment statistics, when surface runoff height is 10 millimeters, road gradient When being 3 ‰ (gradient is vertical with recess, the same below), it is about 25~35% to receive water；When road gradient is 5 ‰, it is about 8 to receive water ~15%.The utility model changes rainfall runoff side by meeting the semicircular arc-shaped raised twill to the gradient in recessed surfaces setting To, water rate of receiving is significantly improved, such as：According to experiment statistics, when surface runoff height is 10 millimeters, and ground line gradient is 3 ‰, receive Water is about 100%；When ground line gradient is 5 ‰, it is about 85~90% to receive water；When ground line gradient is 1%, it is about 50 to receive water ~65%.

Description of the drawings

Fig. 1 shows the section layout drawing of traditional kerbstone.

Ground rainwater runoff direction schematic diagram when Fig. 2 is shown using traditional kerbstone.

Fig. 3 shows traditional kerbstone antidumping analysis chart.

Fig. 4 shows when external force F increases, the antidumping analysis chart of traditional kerbstone.

Fig. 5 shows a kind of anti-structural schematic diagram for toppling over aquaretic kerbstone of the utility model.

Fig. 6 shows the anti-structural schematic diagram for toppling over non-notched section in aquaretic kerbstone of the utility model.

Fig. 7 shows the anti-structural schematic diagram for toppling over notched section in aquaretic kerbstone of the utility model.

Fig. 8 shows the angle setting schematic diagram of strip projected parts in notched section.

Fig. 9 shows the anti-section layout drawing for toppling over aquaretic kerbstone of the utility model.

Figure 10 shows that the utility model is anti-and topples over aquaretic kerbstone antidumping analysis chart.

Figure 11 shows that when external force F increases, the utility model resists the antidumping analysis chart for toppling over aquaretic kerbstone.

Figure 12 shows that ground rainwater runoff direction when toppling over aquaretic kerbstone using the utility model is anti-is illustrated Figure.

Figure 13 shows that the utility model is anti-and topples over aquaretic kerbstone installation position schematic diagram.

Wherein have：

1. paved road；2. traditional kerbstone；21. traditional notched section；22. non-notched section of tradition；

3. grass planting ditch or sunk type greenery patches；4. ground rainwater runoff direction；

5. non-notched section；51. bottom surface；52. face elevationally outward；53. inside roadbed mating surface；54. lateral recess mating surface； 55. arc top surface；551. outer flat segments；552. inner arc sections；553. inner arc sections；554. straight roadbed sections；

6. notched section；61. strip projected parts；62. striped.

In addition, F indicates rainwater external force in figure；M indicates soil holding force；G indicates kerbstone center；O indicates yawing axis.

Specific implementation mode

The utility model is described in further detail with specific better embodiment below in conjunction with the accompanying drawings.

The anti-of the utility model topples over aquaretic kerbstone, hereinafter referred to as kerbstone, is mainly disposed to grass planting ditch under The low joining place for influencing exploitation stormwater facility and periphery hard paving ground (containing road) such as heavy formula greenery patches 3, can effectively improve The stability of kerbstone, and the aqueous energy of receipts for significantly improving kerbstone recess, to ensure that road and low influence develop rainwater The safe and stable operation of facility.

As shown in figure 13, the both sides of driveway are provided with grass planting ditch or sunk type greenery patches 3, grass planting ditch or sunk type greenery patches The kerbstone an of the utility model is respectively arranged in both sides.

As shown in figure 5, one kind is anti-to topple over aquaretic kerbstone, including mixing arrangement and the notched section 6 in straight line With non-notched section 5.In actual use, notched section (also referred to as flat stone) and non-notched section (also referred to as kerbstone) can mingle use, It can be used continuously, but the spacing of adjacent recesses section (flat stone) should not exceed 5 meters.

As shown in Fig. 6 and Fig. 9, non-notched section of longitudinal section is L-shaped, non-notched section include bottom surface 51, elevationally outward face 52, The lateral recess mating surface 54 of inside roadbed mating surface 53, two and arc top surface 55.

Bottom surface is piled up on curb basal plane, and bottom surface is preferably cuboid, and bottom surface length is preferably 800mm, wide preferably 350mm。

Face and inside roadbed mating surface are vertically arranged in parallel elevationally outward, and both preferably rectangle.Face elevationally outward Height be more than the height of inside roadbed mating surface, the highly preferred height for inside roadbed mating surface in face elevationally outward 1.5 times, be preferably 2 times in the utility model.Namely：The height in face is 300mm, the height of inside roadbed mating surface elevationally outward For 150mm.

Elevationally outward facing towards grass planting ditch or sunk type greenery patches, inside roadbed mating surface and paved road phase split；Two Lateral recess mating surface will be connected in face with inside roadbed mating surface elevationally outward.

Arc top surface includes sequentially connected outer flat segments, outer arcuate section, inner arc section peace since face elevationally outward Forthright base segment；Straight roadbed section height is equal with paved road height.

Outer circle segmental arc and inner circle segmental arc junction are tangent, and the radius more than inner circle segmental arc of the radius of outer circle segmental arc, outside The length of flat segments is less than the length of straight roadbed section.

The width of outer flat segments is preferably 20mm, and the center of circle of outer arcuate section is downward, and the radius of outer arcuate section is preferably The chord length of 150mm, outer arcuate section are preferably 137mm, and the radius of inner arc section is preferably 100mm, and the chord length of inner arc section is preferred Width for 93mm, straight roadbed section is preferably 100mm.

As shown in Figure 7 and Figure 8, the longitudinal section of notched section is rectangular, the top surface of notched section and straight roadbed section flush；It is recessed The top surface of mouth section is provided at least one strip projected parts 61, and it is convex to be preferably provided with the strip that two are mutually parallel in the utility model It rises.

The width of notched section is preferably 350mm, and the length of notched section is preferably 200mm, and the highly preferred of notched section is 150mm。

Strip projected parts are met to the gradient direction of paved road and are obliquely installed, and strip projected parts are in paved road width direction Angle be preferred 10-30 °, further preferably 14 °, the length of strip projected parts is preferably 320mm.

The longitudinal section of above-mentioned strip projected parts is preferably semicircle, and the radius of strip projected parts is preferably 10mm.

Several stripeds being mutually parallel are preferably provided on strip projected parts, each striped is preferably equal with strip projected parts Row.

The quality standard of kerbstone is：Straight cis degree：10mm, adjacent block height difference：3mm, slit width：± 3mm, non-notched section of (side Stone) elevation of top surface；±10mm.

The material of kerbstone requires：Kerbstone preferably uses the concrete of C20 or more specifications, by mold is processed At.It is not allowed to fall when handling, pounds, hits, touching, in order to avoid cause to damage.

The processing request of kerbstone：Exposed face must machine-cut polishing, length allowable error within the scope of ± 10mm, width, Thickness, height, radian allowable error are within the scope of ± 2mm, and raised twill angle allowable error is within the scope of ± 1 degree.

The construction requirement of kerbstone：(1) kerbstone must hang logical line and construct, and show that high graticule is taut by side plane top surface Tightly, the flat stone in side is built by line code, kerbstone will pacify just, never rock with laughter, the straight round and smooth smooth-going of side top line, existing without just grinding one's teeth As plane is without upper and lower faulting of slab ends, inside and outside phenomenon of grinding one's teeth.(2) must seat grout and build, seat slurry must be closely knit, and stuff up a crack is forbidden to build by laying bricks or stones；Seam Place's dislocation is no more than 1mm；Notched section and non-notched section must be in the intermediate uniform fissure of displacement.(3) it should ensure that size and finish meet Design requirement, appearance looks elegant, ensure when building by laying bricks or stones it is linear it is smooth, smoother, piece is close.(4) jointing：When jointing must hanging wire again, Kerbstone stitch in sundries reject clean, soaked with water, then with 1：It is dry that the 2.5 cement mortar cementation of fissures tamp hook.(5) jointing, peace Appropriate water seasoning after block.

The utility model mainly has following two important improvements.

(1) while overturning-preventing performance obviously increases, cost increasing degree is obviously controlled.

As shown in Figure 1, the kerbstone on existing market is mainly to prevent from toppling over by increasing buried depth, kerbstone height Increase to 600 millimeters (when using grass planting ditch and sunk type greenery patchess) (when grass planting ditch and sunk type greenery patches is not used) by 300 millimeters, Cost increases by 100%, but using effect is as shown in Figure 3 and Figure 4, and actually toppling over rate, (main cause is because being used as road more than 2% Kerb back grass planting ditch and sunk type greenery patches are not only vertical low but also the soil is porous, can not provide effective support).

Fig. 3 shows：Kerbstone center of gravity G is overlapped with yawing axis O, therefore the ability of kerbstone antidumping is both from underlying soil Holding force M, kerbstone its own gravity W have no help to antidumping.

Fig. 4 shows：When kerbstone slightly deflects under the action of external force F, yawing axis O is displaced downwardly to kerbstone bottom, no longer It is overlapped with the direction of kerbstone its own gravity W, the holding force M of underlying soil just no longer works at this time, and kerbstone its own gravity W Direction be moved to the outside (lean on greenery patches side) of kerbstone yawing axis O, so when kerbstone itself gravity accelerate road instead Kerb topples.

The anti-of the utility model topples over aquaretic kerbstone, and cost only increases by 25% (based on concrete amount), and again The heart is low, as shown in Figure 10, need not increase buried depth or stablize itself by back, therefore anti-topples over that performance is good and construction party Just, using effect is as shown in figure 11, actually topples over rate and is less than 0.3%.

Figure 10 shows：Kerbstone center of gravity G is located at the inside (lean on road side) of yawing axis O, therefore the power of kerbstone its own gravity W Square is opposite with the deflection torque of external force F, and kerbstone its own gravity W can be used for resisting toppling for external force F.

Figure 11 shows：After kerbstone deflects certain angle under the action of external force F, yawing axis O is not moved position, this As long as when deflection angle in a certain range, kerbstone center of gravity G is still located on the inside (lean on road side) of yawing axis O, kerbstone Its own gravity W can equally play certain antidumping effect.

(2) performance for collecting rainfall runoff is significantly improved.

Kerbstone on existing market mainly collects rainwater by recess, as shown in Fig. 2, due to the influence of the gradient, Ground rainwater runoff direction 4 is easy to form short stream perpendicular to recess, causes most of rainfall runoff to cross recess and flows to downstream, It is poor to receive water effect.Such as：According to experiment statistics, when surface runoff height is 10 millimeters, and road gradient is 3 ‰ (gradient with Recess is vertical, the same below), it is about 25~35% to receive water；When road gradient is 5 ‰, it is about 8~15% to receive water.

The utility model is changed as shown in figure 12 by being met to the semicircular arc-shaped raised twill of the gradient in recessed surfaces setting Become rainfall runoff direction, rainfall runoff direction is flowed to the kerbstone back side by the guiding of strip projected parts and twill, and receiving water effect has It is obviously improved.Such as：According to experiment statistics, when surface runoff height is 10 millimeters, and ground line gradient is 3 ‰, water is received about It is 100%；When ground line gradient is 5 ‰, it is about 85~90% to receive water；When ground line gradient is 1%, receive water be about 50~ 65%.

When notched section (flat stone) slope aspect rainfall runoff direction, effectively rainfall runoff can be guided to the kerbstone back side, Principle is：According to relevant statistics, the daily rain amount rainfall of most of (70% or more) is and to be held less than 10 millimeters of light rain The continuous time is often at 1 hour or more, therefore surface runoff height is no more than 10 millimeters (with In Nanjing more in duration of raining For, the extreme rainfall for meeting maximum 2 hours using 30 years one, urban road is averaged width of roadway according to 20 meters of meters, does not consider When road longitudinal slope only considers road horizontal slope, it is assumed that instantaneously arranged by notched section (flat stone) after at the rainfall cross flow to both sides kerbstone of road surface It walks, using unrestrained flows formula calculating, can show that maximum flow rate is 0.126 meter per second at this, maximum depth of accumulated water is 10 millimeters.Cause This twill height uses 10 millimeters, you can substantially change the flow direction of most of rainfall runoff.The decorporation ability of twill can approximation adopt It is calculated with channel flow formula, i.e.,：

Q=v A, b=R^2/3i^1/2/ n, R=A/P, A=WH, P=W+2H

Q-flow in formula, unit are cube meter per second；V-flow velocity, unit are meter per second；R-hydraulic radius, unit are rice； I-hydraulic gradient, dimensionless consider by 0.01；P-wetted perimeter, unit are rice；P-wetted perimeter, unit are rice；W-width of the channel, unit For rice；H-canal is high, and unit is rice；A-active cross-section, unit are square metre；N-the coefficient of roughness, dimensionless, cement surface take 0.013。

Notched section (flat stone) intercepts rainfall runoff equipped with twice twill, therefore total interception capacity is the summation of twice twill. Since the calculating boundary of second twill is more clear, therefore the ability that second twill intercepts rainfall runoff is calculated first.

It it is highly 10 millimeters with width between twice twill for 58 millimeters, i.e. H is 0.01 meter, and W is 0.058 meter, according to meter It calculates, the theoretical delivery between twice twill is 0.2 liter/second, and theoretical velocity is 0.292 meter per second, you can the interception energy of second twill 0.292 meter per second of power is significantly greater than aforementioned 0.126 meter per second of charge for remittance flow velocity.

In the case where not considering the interdiction capability of first of twill, the interdiction capability of second twill has met guiding The requirement of surface runoff；But for safety, twice twill is still set.

In addition the twill section of notched section (flat stone) uses semicircular arc-shaped, facilitates machine-shaping, while being conducive to later stage dimension Shield (facts have proved that twill section uses other shapes, such as rectangle or half elliptic, easy processing or edge not allowed either to be easy It is damaged).

Twill is arranged using 14 degree angles, be because of；One, angle is such as too small, such as less than 5 degree, twill It is approximately band, due to directly facing surface runoff, being easy to happen jump stream, i.e., flow crosses interception band under effect of inertia, It is bad to instead result in interception runoff effect；Two, angle is for example excessive, for example in the case that more than 45 degree, twill is approximately vertical line, is not had There is interception effect.Integrated comparative, and combine test result, twill angle is more suitable between 10 and 20, but in order to and notched section 200 millimeters of the length of (flat stone) in the longitudinal direction is mutually suitable, finally uses 14 degree.Actual effect also indicates that：Lines mechanism is more Beauty, Mold Making is more convenient, while the distance controlling at twill and edge is reasonable, and twill in use edge is not allowed fragile It is bad.Refer to attached drawing 7 and attached drawing 8.

Preferred embodiments of the present invention described in detail above, still, the utility model are not limited to above-mentioned reality Apply the detail in mode, in the range of the technology design of the utility model, can to the technical solution of the utility model into The a variety of equivalents of row, these equivalents belong to the scope of protection of the utility model.

Claims (9)

1. one kind is anti-to topple over aquaretic kerbstone, it is characterised in that：Including mixing arrangement and in straight line notched section and Non-notched section, the spacing of two neighboring notched section is no more than 5m；

Non-notched section of longitudinal section is L-shaped, non-notched section include bottom surface, elevationally outward face, inside roadbed mating surface, two it is lateral Recess mating surface and arc top surface；Wherein, bottom surface is piled up on curb basal plane, and face and inside roadbed mating surface are equal elevationally outward It is vertically arranged in parallel, and the height in face is more than the height of inside roadbed mating surface elevationally outward；Elevationally outward facing towards grass planting ditch Or sunk type greenery patches, inside roadbed mating surface and paved road phase split；Two lateral recess mating surfaces will elevationally outward face and Inside roadbed mating surface is connected；Arc top surface since face elevationally outward include sequentially connected outer flat segments, outer arcuate section, Inner arc section peace forthright base segment；Straight roadbed section height is equal with paved road height, and the center of circle of outer arcuate section is downward, outer circle Segmental arc and inner circle segmental arc junction are tangent, and the radius more than inner circle segmental arc of the radius of outer circle segmental arc, the length of outer flat segments Less than the length of straight roadbed section；

The longitudinal section of notched section is rectangular, the top surface of notched section and straight roadbed section flush；The top surface of notched section be provided with to Few strip projected parts, strip projected parts are met to the gradient direction of paved road and are obliquely installed, and the longitudinal section of strip projected parts is semicircle Shape.

Anti- topple over aquaretic kerbstone 2. according to claim 1, it is characterised in that：Strip projected parts are wide with paved road The angle that degree direction is in is 10-30 °.

Anti- topple over aquaretic kerbstone 3. according to claim 2, it is characterised in that：Strip projected parts are wide with paved road The angle that degree direction is in is 14 °.

Anti- topple over aquaretic kerbstone 4. according to claim 1, it is characterised in that：The top surface of notched section is provided with two The strip projected parts that item is mutually parallel.

Anti- topple over aquaretic kerbstone 5. according to claim 1 or 4, it is characterised in that：It is provided on strip projected parts Several stripeds being mutually parallel, each striped are parallel with strip projected parts.

Anti- topple over aquaretic kerbstone 6. according to claim 1, it is characterised in that：The height in face is interior elevationally outward 2 times of the height of dypass base mating surface.

Anti- topple over aquaretic kerbstone 7. according to claim 1, it is characterised in that：The a length of 800mm in bottom surface, width are 350mm；The height in face is 300mm elevationally outward, and the height of inside roadbed mating surface is 150mm, and the width of outer flat segments is The radius of 20mm, outer arcuate section are 150mm, and the chord length of outer arcuate section is 137mm, and the radius of inner arc section is 100mm, inner arc The chord length of section is 93mm, and the width of straight roadbed section is 100mm.

Anti- topple over aquaretic kerbstone 8. according to claim 7, it is characterised in that：The width of notched section is 350mm, The length of notched section is 200mm, and the height of notched section is 150mm, and the length of strip projected parts is 320mm.

Anti- topple over aquaretic kerbstone 9. according to claim 7, it is characterised in that：The radius of strip projected parts is 10mm。