CN111424482A - Road structure based on hydrophobic material water-resisting layer and arrangement method of water-resisting layer - Google Patents
Road structure based on hydrophobic material water-resisting layer and arrangement method of water-resisting layer Download PDFInfo
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- CN111424482A CN111424482A CN202010194277.8A CN202010194277A CN111424482A CN 111424482 A CN111424482 A CN 111424482A CN 202010194277 A CN202010194277 A CN 202010194277A CN 111424482 A CN111424482 A CN 111424482A
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- 239000000463 material Substances 0.000 title claims abstract description 236
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 220
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 236
- 239000000725 suspension Substances 0.000 claims abstract description 60
- 239000002346 layers by function Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002344 surface layer Substances 0.000 claims abstract description 9
- 230000007480 spreading Effects 0.000 claims abstract description 4
- 238000003892 spreading Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 44
- 238000005507 spraying Methods 0.000 claims description 35
- 239000008187 granular material Substances 0.000 claims description 30
- 230000004888 barrier function Effects 0.000 claims description 23
- 238000005520 cutting process Methods 0.000 claims description 13
- 239000003673 groundwater Substances 0.000 claims description 12
- 239000002689 soil Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 239000013543 active substance Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
Abstract
A road structure based on a hydrophobic material water-resisting layer and a method for laying the water-resisting layer relate to the technical field of road construction. The invention aims to solve the problems of difficult material taking and high engineering cost of a water separating layer in the existing road structure. The road structure comprises a surface layer, a base layer, a functional layer, a first hydrophobic material water-resisting layer and a roadbed, wherein the roadbed, the functional layer, the base layer and the surface layer are sequentially paved from bottom to top, and the first hydrophobic material water-resisting layer is paved on the bottom surface of the roadbed. The laying method of the water-resisting layer comprises the following steps: preparing a hydrophobic material suspension; spreading a water-resisting layer. The invention is used for road construction.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a road structure based on a hydrophobic material water-resisting layer and a laying method of the water-resisting layer.
Background
Road engineering is not only subject to the action of wheel loads, but also to the influence of natural environmental factors. Because the influence of the traffic load and atmospheric factors on the road surface generally weakens gradually along with the depth, the road engineering is usually a multilayer structure, the material with higher strength and meeting the traffic requirements is laid on the upper layer with larger stress, and the material with lower strength is laid on the lower layer with smaller stress, so that a road structure form that the functional layer, the base layer and the surface layer are respectively laid on the roadbed by adopting the materials with different specifications and requirements is formed. In order to prevent frost heaving and water damage of road engineering and keep the stability of a roadbed, a water-resisting layer is usually arranged in a road structure layer in areas with rich water systems, high underground water level, more surface runoff and frequent atmospheric precipitation, at present, water-resisting of the roadbed is mainly filled by adopting broken stones, but the material taking is difficult in areas lacking granular materials, and the construction cost is increased.
Disclosure of Invention
The invention aims to solve the problems of difficult material taking and high engineering cost of a water-resisting layer in the conventional road structure, and further provides a road structure based on a water-resisting layer made of a hydrophobic material and a laying method of the water-resisting layer.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the road structure based on the hydrophobic material water-resisting layer comprises a surface layer, a base layer, a functional layer, a first hydrophobic material water-resisting layer and a roadbed, wherein the roadbed, the functional layer, the base layer and the surface layer are sequentially paved from bottom to top, and the first hydrophobic material water-resisting layer is paved on the bottom surface of the roadbed.
The method for laying the waterproof layer of the road structure based on the waterproof layer of the hydrophobic material comprises the following steps:
the method comprises the following steps: preparing a hydrophobic material suspension: preparing a hydrophobic material suspension with a certain concentration which meets the water-proof requirement of a road environment by taking a hydrophobic material effective substance as a solute and water as a solvent;
step two: spreading a water-resisting layer: according to the different environments of the subgrade, the water-resisting layers with different layers are arranged:
(I) when the road base is in humid environment, the inside 1 ~ 3 layers of water barrier that sets up of road:
(I-I) when a cutting is built, 1-3 water-resisting layers are arranged, the first hydrophobic material water-resisting layer is arranged on the bottom surface of the roadbed, and a first hydrophobic material water-resisting layer is paved on the bottom surface of the roadbed in a spraying mode;
if the underground water level of the area where the roadbed passes is high and the building height of the roadbed is high, a second hydrophobic material waterproof layer can be paved on the bottom surface of a functional layer formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of granular material functional layer, the replacement thickness of the second hydrophobic material waterproof layer is less than or equal to 5cm, and the replacement thickness can be estimated by the following formula:
h＝(x-10)·A (X)
wherein, in formula (X): h-substituted pellet functional layer thickness (cm);
x-concentration (%) of active substance in the isolation layer;
a, comprehensive parameters related to factors such as the consumption of the water-resisting layer material in unit area, the purity of the water-resisting layer material, the size of soil particles, gradation, the position of underground water level and the like;
if the groundwater level of the area where the roadbed passes is high and the building height of the roadbed is low, a third hydrophobic material water-resisting layer can be paved on the lower portion in the roadbed in a spraying mode according to actual needs, and the distance between the third hydrophobic material water-resisting layer and the first hydrophobic material water-resisting layer is 15 cm-25 cm;
(I-II) when a embankment is built, 1-3 water-resisting layers are arranged, the first hydrophobic material water-resisting layer is arranged at the bottom surface of the roadbed, and a first hydrophobic material water-resisting layer is paved at the bottom surface of the roadbed in a spraying mode;
if the groundwater level of the area where the roadbed passes is high and the building height of the roadbed is high, a second hydrophobic material waterproof layer can be paved on the bottom surface of a functional layer formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of granular material functional layer, the replacement thickness of the second hydrophobic material waterproof layer is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X);
if the groundwater level of the area where the roadbed passes is high and the building height of the roadbed is low, a third hydrophobic material water-resisting layer can be paved on the lower portion in the roadbed in a spraying mode according to actual needs, and the distance between the third hydrophobic material water-resisting layer and the first hydrophobic material water-resisting layer is 15 cm-25 cm;
(II) when the road base is in the middle and wet environment, the inside 1 ~ 2 layers of water barrier that sets up of road:
(II-I) when the cutting is built, 1-2 water-resisting layers are arranged, the first hydrophobic material water-resisting layer is arranged on the bottom surface of the roadbed, and a first hydrophobic material water-resisting layer is paved on the bottom surface of the roadbed in a spraying mode; a second hydrophobic material water-resisting layer can be paved on the bottom surface of the functional layer formed by the granular materials in a spraying mode according to the height of the roadbed and the actual requirement to replace the thickness of a part of the granular material functional layer, the replacing thickness of the second hydrophobic material water-resisting layer is less than or equal to 5cm, and the replacing thickness can be estimated by a formula (X);
(II-II) when a embankment is built, 1-2 water-resisting layers are arranged, the first hydrophobic material water-resisting layer is arranged at the bottom surface of the roadbed, and a first hydrophobic material water-resisting layer is paved at the bottom surface of the roadbed in a spraying mode; and a second hydrophobic material water-resisting layer can be paved on the bottom surface of the functional layer formed by the granular materials in a spraying mode according to the height of the roadbed and the actual requirement to replace the thickness of a part of the granular material functional layer, the replacement thickness of the second hydrophobic material water-resisting layer is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X).
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a road structure based on a hydrophobic material water-resisting layer and a method for laying the water-resisting layer.
The water-resisting layer can replace or partially replace a granular material functional layer, is used for isolating capillary phenomenon and frost heaving migration of groundwater, keeps the stability of a roadbed, prevents and isolates water intrusion, and prevents a road structure from being damaged by water. The paint is nontoxic and harmless, has good durability, convenient construction, good water-blocking effect, small engineering quantity and low manufacturing cost; the setting mode is flexible, and the number of the setting layers and the concentration of the effective substances of the hydrophobic material can be adjusted according to needs.
Drawings
FIG. 1 is a schematic view of the overall structure of a cutting according to the present invention;
fig. 2 is a schematic view of the overall structure of the embankment according to the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 2, the road structure based on the hydrophobic material water barrier layer in the embodiment includes a surface layer 1, a base layer 2, a functional layer 3, a first hydrophobic material water barrier layer 4, and a roadbed 5, wherein the roadbed 5, the functional layer 3, the base layer 2, and the surface layer 1 are sequentially laid from bottom to top, and a first hydrophobic material water barrier layer 4 is laid on the bottom surface of the roadbed 5.
In this embodiment, when the roadbed 5 is in a medium-humidity environment and the embankment is constructed, the first hydrophobic material water-resisting layer 4 is spread on the bottom surface of the roadbed 5 in a spraying manner, and the second hydrophobic material water-resisting layer 6 is spread on the bottom layer of the functional layer 3 as required.
The second embodiment is as follows: in the present embodiment, a second hydrophobic material water barrier layer 6 is applied on the bottom layer of the functional layer 3 according to the present embodiment, which is described with reference to fig. 1 to 2. Technical features not disclosed in the present embodiment are the same as those of the first embodiment.
In the embodiment, when the roadbed 5 is in a humid environment, if the groundwater level of the region through which the roadbed 5 passes is higher and the building height of the roadbed 5 is higher, a layer of second hydrophobic material water-resisting layer 6 can be paved on the bottom surface of the functional layer 3 formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of the granular material functional layer 3; when the roadbed 5 is in a medium-humidity environment, a second hydrophobic material water-resisting layer 6 can be paved on the bottom surface of the functional layer 3 formed by the granular materials in a spraying mode according to the height of the roadbed 5 and actual needs, and the thickness of a part of the granular material functional layer 3 is replaced.
The third concrete implementation mode: referring to fig. 1 to 2, the present embodiment will be described, in which a third hydrophobic material water-barrier layer 7 is applied to the lower portion of the roadbed 5. The technical features not disclosed in the present embodiment are the same as those of the second embodiment.
In this embodiment, if the roadbed 5 is in a humid environment and the groundwater level in the region where the roadbed 5 passes is high, and the building height of the roadbed 5 is low, a third hydrophobic material water-barrier layer 7 can be sprayed on the lower portion of the roadbed 5 in a spraying manner according to actual needs.
The fourth concrete implementation mode: in the present embodiment, the distance between the third hydrophobic material water barrier layer 7 and the first hydrophobic material water barrier layer 4 is 15cm to 25cm, which is described in the present embodiment, with reference to fig. 1 to 2. The technical features not disclosed in the present embodiment are the same as those of the third embodiment.
In this embodiment, during construction, after the first hydrophobic material water-stop layer 4 is spread, the roadbed 5 with a thickness of 15cm to 25cm is firstly laid, then the third hydrophobic material water-stop layer 7 is spread, and then the roadbed 5 is continuously laid.
The preferred distance between the third water-stop layer of hydrophobic material 7 and the first water-stop layer of hydrophobic material 4 is 20 cm.
The fifth concrete implementation mode: in the present embodiment, the first hydrophobic material water-blocking layer 4, the second hydrophobic material water-blocking layer 6, and the third hydrophobic material water-blocking layer 7 are all water-blocking layers made of hydrophobic material suspensions, and are described with reference to fig. 1 to 2. The technical features not disclosed in the present embodiment are the same as those of the fourth embodiment.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1 to 2, and the hydrophobic material suspension in the present embodiment is an organosilicon suspension. The technical features not disclosed in the present embodiment are the same as those in the fifth embodiment.
The organosilicon suspension is used as a water-proof layer, and has the following advantages:
1. good water-resisting property
The active gene in the organic silicon and the silicon-oxygen (hydroxyl) group in the soil can generate a layer of coating with hydrophobicity, and the coating has high hydrophobic property and can prevent water from passing through;
2. has environmental protection property
The formed hydrophobic coating is non-toxic, harmless, pollution-free, and stable in chemical and thermal properties;
3. good durability
The organosilicon water-resisting layer has stable performance, high temperature resistance and corrosion resistance, and the service life can be as long as one hundred years;
4. convenient construction and simple process
The water can be used for preparing suspension with a set concentration, construction is carried out in a spraying mode, the operation time is short, the construction process is simple, and the next construction can be carried out within 12 hours after construction.
5. Good economical efficiency
The material is used for a roadbed waterproof layer, has lower material manufacturing cost and has economic advantages compared with similar waterproof layer materials.
The seventh embodiment: referring to fig. 1 to 2, the present embodiment will be described, in which the concentration of the effective substance in the hydrophobic material suspension is 10% or more. The technical features not disclosed in the present embodiment are the same as those in the fifth embodiment.
In this embodiment, when the roadbed 5 is in a humid environment, the concentration of the effective substance in the hydrophobic material suspension of the third hydrophobic material water-stop layer 7 can be properly reduced according to the actual situation.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 to 2, and the method for laying a water barrier layer of a road structure based on a water-repellent material water barrier layer in the present embodiment includes the following steps:
the method comprises the following steps: preparing a hydrophobic material suspension: preparing a hydrophobic material suspension with a certain concentration which meets the water-proof requirement of a road environment by taking a hydrophobic material effective substance as a solute and water as a solvent;
step two: spreading a water-resisting layer: according to the different environments of the roadbed 5, the water-resisting layers with different layers are arranged:
(I) when road bed 5 is in humid environment, the inside 1 ~ 3 layers of water barrier that sets up of road:
(I-I) when a cutting is built, 1-3 water-resisting layers are arranged, the first hydrophobic material water-resisting layer 4 is arranged on the bottom surface of the roadbed 5, and a first hydrophobic material water-resisting layer 4 is sprayed on the bottom surface of the roadbed 5 in a spraying mode;
if the groundwater level of the area passed by the roadbed 5 is high, and the building height of the roadbed 5 is high, a layer of second hydrophobic material water-resisting layer 6 can be paved on the bottom surface of the functional layer 3 formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of the granular material functional layer 3, the replacing thickness of the second hydrophobic material water-resisting layer 6 is less than or equal to 5cm, and the replacing thickness can be estimated by the following formula:
h＝(x-10)·A (X)
wherein, in formula (X): h-substituted pellet functional layer thickness (cm);
x-concentration (%) of active substance in the isolation layer;
a, comprehensive parameters related to factors such as the consumption of the water-resisting layer material in unit area, the purity of the water-resisting layer material, the size of soil particles, gradation, the position of underground water level and the like;
if the groundwater level of the area through which the roadbed 5 passes is high and the building height of the roadbed 5 is low, a third hydrophobic material water-resisting layer 7 can be paved on the lower part in the roadbed 5 in a spraying mode according to actual needs, and the distance between the third hydrophobic material water-resisting layer 7 and the first hydrophobic material water-resisting layer 4 is 15 cm-25 cm;
(I-II) when a embankment is built, 1-3 water-resisting layers are arranged, the first hydrophobic material water-resisting layer 4 is arranged on the bottom surface of the roadbed 5, and a first hydrophobic material water-resisting layer 4 is paved on the bottom surface of the roadbed 5 in a spraying mode;
if the groundwater level of the area where the roadbed 5 passes is high and the building height of the roadbed 5 is high, a layer of second hydrophobic material water-resisting layer 6 can be paved on the bottom surface of the functional layer 3 formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of the granular material functional layer 3, the replacement thickness of the second hydrophobic material water-resisting layer 6 is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X);
if the groundwater level of the area through which the roadbed 5 passes is high and the building height of the roadbed 5 is low, a third hydrophobic material water-resisting layer 7 can be paved on the lower part in the roadbed 5 in a spraying mode according to actual needs, and the distance between the third hydrophobic material water-resisting layer 7 and the first hydrophobic material water-resisting layer 4 is 15 cm-25 cm;
(II) when the road bed 5 is in the middle-wet environment, the inside 1 ~ 2 layers of water barrier that sets up of road:
(II-I) when a cutting is built, 1-2 water-resisting layers are arranged, the first hydrophobic material water-resisting layer 4 is arranged on the bottom surface of the roadbed 5, and a first hydrophobic material water-resisting layer 4 is sprayed on the bottom surface of the roadbed 5 in a spraying mode; a second hydrophobic material water-resisting layer 6 can be paved on the bottom surface of the functional layer 3 formed by the granules in a spraying mode according to the height of the roadbed 5 and the actual requirement to replace the thickness of a part of the granular material functional layer 3, the replacing thickness of the second hydrophobic material water-resisting layer 6 is less than or equal to 5cm, and the replacing thickness can be estimated by a formula (X);
(II-II) when a embankment is built, 1-2 water-resisting layers are arranged, the first hydrophobic material water-resisting layer 4 is arranged at the bottom surface of the roadbed 5, and a first hydrophobic material water-resisting layer 4 is paved at the bottom surface of the roadbed 5 in a spraying mode; and a second hydrophobic material water-resisting layer 6 can be paved on the bottom surface of the functional layer 3 formed by the granular materials in a spraying mode according to the height of the roadbed 5 and the actual requirement to replace the thickness of a part of the granular material functional layer 3, the replacement thickness of the second hydrophobic material water-resisting layer 6 is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X).
In the embodiment, A is related to factors such as the consumption of the water-resisting layer material in unit area, the purity of the water-resisting layer material, the size of soil particles, gradation, the position of underground water level and the like, and is determined through experimental tests.
The specific implementation method nine: the present embodiment is described with reference to fig. 1 to 2, and when the roadbed 5 is in a wet environment: in the cutting, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 15%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 is the same as that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4; in the embankment, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 10%, the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 is the same as that of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4, and the concentration of effective substances of the hydrophobic material suspension of the third hydrophobic material water-resisting layer 7 can be reduced compared with that of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 according to the soil particle size and grading condition of the roadbed 5; when the roadbed 5 is in a medium-wet environment: in the cutting, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 10%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 is the same as or lower than that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4; in the embankment, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 10%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 is the same as or lower than that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4. The technical features not disclosed in this embodiment are the same as those in the eighth embodiment.
When the roadbed 5 is in a humid environment: in the cutting, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 15%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 can be the same as or similar to that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4; in the embankment, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 10%, the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 can be the same as or similar to that of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4, and the concentration of effective substances of the hydrophobic material suspension of the third hydrophobic material water-resisting layer 7 can be properly reduced compared with that of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 according to the soil particle size and grading condition of the roadbed 5; when the roadbed 5 is in a medium-wet environment: in the cutting, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4 is more than or equal to 10%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer 6 is the same as or properly lower than that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer 4; in the embankment, the concentration of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-stop layer 4 is more than or equal to 10%, and the concentration of the effective substances of the hydrophobic material suspension of the second hydrophobic material water-stop layer 6 is the same as or properly lower than that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-stop layer 4.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (9)
1. Road structure based on hydrophobic material water barrier, its characterized in that: the road structure based on the hydrophobic material water-resisting layer comprises a surface layer (1), a base layer (2), a functional layer (3), a first hydrophobic material water-resisting layer (4) and a roadbed (5), wherein the roadbed (5), the functional layer (3), the base layer (2) and the surface layer (1) are laid in sequence from bottom to top, and the first hydrophobic material water-resisting layer (4) is paved on the bottom surface of the roadbed (5).
2. The road structure based on hydrophobic material water barrier layer of claim 1, characterized in that: and a second hydrophobic material waterproof layer (6) is paved on the bottom layer of the functional layer (3).
3. The road structure based on hydrophobic material water barrier layer of claim 2, characterized in that: and a third hydrophobic material water-resisting layer (7) is paved on the lower part in the roadbed (5).
4. The road structure based on hydrophobic material water barrier layer of claim 3, characterized in that: the distance between the third hydrophobic material water-resisting layer (7) and the first hydrophobic material water-resisting layer (4) is 15-25 cm.
5. The road structure based on hydrophobic material water barrier layer of claim 4, characterized in that: the first hydrophobic material water-resisting layer (4), the second hydrophobic material water-resisting layer (6) and the third hydrophobic material water-resisting layer (7) are water-resisting layers made of hydrophobic material suspension.
6. The road structure based on hydrophobic material water barrier layer of claim 5, characterized in that: the hydrophobic material suspension is an organic silicon suspension.
7. The road structure based on hydrophobic material water barrier layer of claim 5, characterized in that: the concentration of the effective substances of the hydrophobic material suspension is more than or equal to 10 percent.
8. The method for laying a water barrier of a road structure based on a water barrier of a hydrophobic material according to any one of claims 1 to 7, wherein: the method comprises the following steps:
the method comprises the following steps: preparing a hydrophobic material suspension: preparing a hydrophobic material suspension with a certain concentration which meets the water-proof requirement of a road environment by taking a hydrophobic material effective substance as a solute and water as a solvent;
step two: spreading a water-resisting layer: according to the different environments of the roadbed (5), the water resisting layers with different layers are arranged:
(I) when road bed (5) are in humid environment, the inside 1 ~ 3 layers of water barrier that sets up of road:
(I-I) when a cutting is built, 1-3 water-resisting layers are arranged, a first hydrophobic material water-resisting layer (4) is arranged on the bottom surface of a roadbed (5), and a first hydrophobic material water-resisting layer (4) is spread on the bottom surface of the roadbed (5) in a spraying mode;
if the underground water level of the area where the roadbed (5) passes is high, and meanwhile, the building height of the roadbed (5) is high, a second hydrophobic material water-resisting layer (6) can be paved on the bottom surface of the functional layer (3) formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of the granular material functional layer (3), the replacing thickness of the second hydrophobic material water-resisting layer (6) is less than or equal to 5cm, and the replacing thickness can be estimated by the following formula:
h＝(x-10)·A (X)
wherein, in formula (X): h-substituted pellet functional layer thickness (cm);
x-concentration (%) of active substance in the isolation layer;
a, comprehensive parameters related to factors such as the consumption of the water-resisting layer material in unit area, the purity of the water-resisting layer material, the size of soil particles, gradation, the position of underground water level and the like;
if the groundwater level of the area where the roadbed (5) passes is high and the building height of the roadbed (5) is low, a third hydrophobic material water-resisting layer (7) can be paved on the lower part in the roadbed (5) in a spraying mode according to actual needs, wherein the distance between the third hydrophobic material water-resisting layer (7) and the first hydrophobic material water-resisting layer (4) is 15-25 cm;
(I-II) when a embankment is built, 1-3 water-resisting layers are arranged, the first hydrophobic material water-resisting layer (4) is arranged at the bottom surface of the roadbed (5), and a layer of the first hydrophobic material water-resisting layer (4) is paved at the bottom surface of the roadbed (5) in a spraying mode;
if the underground water level of the region where the roadbed (5) passes is high, and meanwhile, the building height of the roadbed (5) is high, a second hydrophobic material water-resisting layer (6) can be paved on the bottom surface of the functional layer (3) formed by the granular materials in a spraying mode according to actual needs to replace the thickness of a part of the granular material functional layer (3), the replacement thickness of the second hydrophobic material water-resisting layer (6) is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X);
if the groundwater level of the area where the roadbed (5) passes is high and the building height of the roadbed (5) is low, a third hydrophobic material water-resisting layer (7) can be paved on the lower part in the roadbed (5) in a spraying mode according to actual needs, wherein the distance between the third hydrophobic material water-resisting layer (7) and the first hydrophobic material water-resisting layer (4) is 15-25 cm;
(II) when road bed (5) is in the middle and wet environment, the inside 1 ~ 2 layers of water barrier that sets up of road:
(II-I) when a cutting is built, 1-2 water-resisting layers are arranged, the first hydrophobic material water-resisting layer (4) is arranged on the bottom surface of the roadbed (5), and a first hydrophobic material water-resisting layer (4) is spread on the bottom surface of the roadbed (5) in a spraying mode; a second hydrophobic material water-resisting layer (6) can be paved on the bottom surface of the functional layer (3) formed by the granular materials in a spraying mode according to the height of the roadbed (5) and the actual requirement to replace the thickness of a part of the granular material functional layer (3), the replacement thickness of the second hydrophobic material water-resisting layer (6) is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X);
(II-II) when a embankment is built, 1-2 water-resisting layers are arranged, the first hydrophobic material water-resisting layer (4) is arranged at the bottom surface of the roadbed (5), and a layer of the first hydrophobic material water-resisting layer (4) is paved at the bottom surface of the roadbed (5) in a spraying mode; a second hydrophobic material water-resisting layer (6) can be paved on the bottom surface of the functional layer (3) formed by the granular materials in a spraying mode according to the height of the roadbed (5) and the actual requirement to replace the thickness of a part of the granular material functional layer (3), the replacement thickness of the second hydrophobic material water-resisting layer (6) is less than or equal to 5cm, and the replacement thickness can be estimated by a formula (X).
9. The method for laying a water-resisting layer according to claim 8, wherein: when the roadbed (5) is in a humid environment: in the cutting, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4) is more than or equal to 15%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer (6) is the same as that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4); in the embankment, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4) is more than or equal to 10%, the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer (6) is the same as that of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4), and the concentration of effective substances of the hydrophobic material suspension of the third hydrophobic material water-resisting layer (7) can be reduced compared with that of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4) according to the soil particle size and grading condition of the roadbed (5); when the roadbed (5) is in a medium-humidity environment: in the cutting, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4) is more than or equal to 10%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer (6) is the same as or lower than that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4); in the embankment, the concentration of effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4) is more than or equal to 10%, and the concentration of effective substances of the hydrophobic material suspension of the second hydrophobic material water-resisting layer (6) is the same as or lower than that of the effective substances of the hydrophobic material suspension of the first hydrophobic material water-resisting layer (4).
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| US4319854A (en) * | 1977-12-19 | 1982-03-16 | Owens-Corning Fiberglas Corporation | Moisture control method and means for pavements and bridge deck constructions |
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