CN113215889A - Soft rock roadbed construction method for rainy and humid areas - Google Patents
Soft rock roadbed construction method for rainy and humid areas Download PDFInfo
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- CN113215889A CN113215889A CN202110512418.0A CN202110512418A CN113215889A CN 113215889 A CN113215889 A CN 113215889A CN 202110512418 A CN202110512418 A CN 202110512418A CN 113215889 A CN113215889 A CN 113215889A
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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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- 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
- E01C3/04—Foundations produced by soil stabilisation
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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
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a soft rock roadbed construction method in a rainy and humid area, which is used for constructing a roadbed working area according to the depth of the roadbed working area obtained in advance, wherein the roadbed working area construction method comprises the following steps: after the construction of the embankment is finished, paving a waterproof layer on the surface of the constructed embankment; paving a roadbed working area on the waterproof layer, wherein at least two layers of geocells are arranged in the roadbed working area; the method can obviously improve the overall modulus and rigidity of the roadbed and meet the requirements of roadbed construction and long-term service performance.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a construction method of a soft rock roadbed in a rainy and humid area.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The soft rock is rock with uniaxial compressive strength less than 5MPa, has the characteristics of softness, weakness, looseness, scattering, low strength and the like, and is generally common in mudstone, shale, argillaceous siltstone, argillaceous limestone, schist, phyllite, slate and the like. A plurality of research data show that the soft rock is special rock and soil and has the characteristics of easy disintegration, easy weathering, water sensitivity and the like.
The inventor finds that during the construction of the soft rock roadbed, especially under the influence of moisture and rain in a region, the water content of the soft rock self-filling material is large and is far higher than the optimal water content required by the roadbed compaction, and if the soft rock roadbed is aired or dry materials are added before filling, the construction period and the cost of the roadbed are increased; meanwhile, the water content of the filled roadbed is further increased under the influence of rainwater during construction, so that the strength is greatly reduced, and the excavation and airing of the filled roadbed is far from practical. During the operation of the soft rock roadbed, due to the self property of the soft rock, the roadbed can generate larger deformation and uneven deformation under the action of self gravity and vehicle cyclic load, so that the cracking of the roadbed and the road surface is caused, and the driving safety and the service life are influenced; in addition, the moisture content inside or on the top of a roadbed working area is too high due to the capillary action and the pumping action of high underground water level in a humid and rainy area, so that the performance of the whole roadbed is further deteriorated, the rigidity is insufficient, and the roadbed is damaged or other roadbed disasters are induced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a soft rock roadbed construction method in a rainy and humid area, and meets the requirements of strength and stability of the roadbed under the rainy and humid soft rock working condition.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a method for constructing a soft rock roadbed in a rainy and humid area, where a roadbed work area is constructed according to a previously obtained roadbed work area depth, and the roadbed work area construction includes the following steps:
after the construction of the embankment is finished, paving a waterproof layer on the surface of the constructed embankment;
paving a roadbed working area on the waterproof layer, wherein at least two layers of geocells are arranged in the roadbed working area;
and compacting the roadbed working area.
Optionally, the depth of the roadbed working area is determined according to the working area depth during standard axle load, the fitting parameters and the axle load.
Optionally, the fitting parameters are determined according to the thickness of the pavement structure layer and the roadbed modulus.
Optionally, the water barrier layer is an emulsified asphalt water barrier layer.
Optionally, the thickness of the water-resisting layer is 0.5cm-1.5 cm.
Optionally, the thickness of the geocell is 5cm-10cm, and correspondingly, the determining method includes:
calculating to obtain a dynamic deformation allowable control value of the top surface of the roadbed;
according to the set thickness of the geocell, obtaining an actual dynamic deformation value of the top surface of the roadbed under the set thickness of the geocell according to a layered roadbed dynamic theory or a finite element method;
if the obtained actual dynamic deformation value of the top surface of the roadbed is not greater than the allowable dynamic deformation control value of the top surface of the roadbed, the corresponding geocell thickness is the geocell thickness which is actually required;
otherwise, adjusting the thickness of the set geocell, and calculating the actual dynamic deformation value of the top surface of the roadbed again until the actual dynamic deformation value of the top surface of the roadbed is not greater than the allowable dynamic deformation control value of the top surface of the roadbed, wherein the thickness of the corresponding geocell is the thickness of the geocell actually required.
Optionally, the distance between adjacent layers of geocells is less than 2 times the thickness of the geocell.
Optionally, the concrete construction steps of the roadbed working area are as follows:
laying a first layer of filler on the waterproof layer, compacting, laying a first layer of geocell on the first layer of filler, laying a second layer of filler on the first layer of geocell, compacting, laying a second layer of geocell on the second layer of filler, repeating the steps, laying multiple layers of filler and geocell in sequence until the uppermost layer of filler is laid, and then compacting the laid roadbed working area.
Optionally, the minimum load bearing ratio of the filler is not less than 5.0.
Optionally, the thickness of the first layer of filler is 28cm-32 cm.
The invention has the beneficial effects that:
1. according to the roadbed construction method, the plurality of layers of geotechnical cells are laid in the roadbed working area, the geotechnical cells are used for reinforcing, and a raft foundation structure layer with higher rigidity is formed in the depth of the working area, so that the overall modulus and rigidity of the roadbed can be obviously improved, the degradation caused by long-term action of weather and traffic load is inhibited, the requirements of roadbed construction and long-term service performance are met, the adverse effect caused by the rise of the water content of the rainfall soft rock roadbed in rainy season is reduced, the secondary excavation and airing in the later period are avoided, the construction period is accelerated, the construction cost is reduced, and the roadbed construction method is particularly suitable for the soft rock roadbed construction and operation and maintenance characteristics in a rainy and humid area.
2. According to the roadbed construction method, the waterproof layer is laid on the embankment and is made of emulsified asphalt, so that the waterproof effect is good, after the waterproof layer is laid at a proper position, the water content of the top of the roadbed can be prevented from being increased under the action of capillary and pumping of underground water, and the waterproof layer and the geocell can play a role in reinforcing the rib.
3. According to the roadbed construction method, the depth of the roadbed working area is determined in advance according to the working area depth, the fitting parameters and the axle load during standard axle load, so that the depth of the roadbed working area is ensured, theoretical guidance is provided for construction, and the strength and the stability of the roadbed working area are ensured.
4. In the roadbed construction method, the thickness of the geocell is checked by using the layered roadbed dynamic theory or a finite element method, so that the thickness meets the dynamic deformation control value and meets the requirement of resisting deformation damage of the roadbed top surface.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic flow chart of a construction method according to embodiment 1 of the present invention;
fig. 2 is a depth query graph of a roadbed working area under standard axle load in embodiment 1 of the invention;
FIG. 3 is a roadbed structure diagram obtained by the construction method in the embodiment 1 of the invention;
the construction method comprises the following steps of 1, an embankment, 2, an emulsified asphalt layer, 3, a first layer of filler, 4, a first layer of geocell, 5, a second layer of filler, 6, a second layer of geocell and 7, and a third layer of filler.
Detailed Description
Example 1
The embodiment discloses a soft rock roadbed construction method in a rainy and humid area, as shown in figure 1, the required roadbed working area depth is calculated through preselection, and after embankment construction is completed, the roadbed working area is constructed according to the calculated roadbed working area depth.
In this embodiment, the method for calculating the depth of the roadbed working area includes:
firstly, establishing a roadbed working area depth calculation model according to the working area depth, fitting parameters and axle load during standard axle load:
H＝H100+k(P-100) (1)
wherein H is the depth of a roadbed working area; p is an axle load and is obtained by parameters of the vehicle when leaving a factory; h100The working area depth of the standard axle load (axle load 100kN) can be obtained by inquiring the coordinate graph of FIG. 2.
And k is a fitting parameter, the value of the k is related to the modulus of the roadbed and the equivalent pavement thickness, and the k is determined according to the modulus of the roadbed and the thickness of the pavement structure layer.
H1Is the thickness of the structural layer of the road surface, E2For roadbed modulus, a typical soft rock compaction sample can be obtained according to dynamic triaxial test of highway roadbed design specifications.
And (3) determining a fitting parameter k by using a formula (2) to a formula (4) according to the design parameters of the road surface and the roadbed, and then substituting the fitting parameter k into the formula (1) to obtain the required roadbed working area depth of the soft rock roadbed.
The embankment 1 is constructed according to design requirements, and the embankment construction can be carried out by adopting the existing construction method, which is not described in detail herein.
After the embankment construction is accomplished, lay the water barrier on embankment surface, in this embodiment, the water barrier adopts emulsified asphalt layer 2, and the thickness on emulsified asphalt layer is 0.5cm-1.5cm, and in a preferred implementation mode, the thickness on emulsified asphalt layer is 1cm, through setting up the water barrier, compromises the effect of waterproof and muscle, can effectively prevent groundwater and capillary water from rising, modulates the inhomogeneous deformation that soft rock embankment arouses because of the humidity distributes unevenly simultaneously.
After the water barrier layer is laid, the filling materials of the roadbed working area are laid, wherein the multi-layer geocells distributed up and down are laid in the filling materials of the roadbed working area, a raft-shaped foundation structure is formed, the integrity, the rigidity and the strength of the whole roadbed working area are increased, the degradation caused by long-term action of weather and traffic load is inhibited, and therefore the long-term performance of the whole roadbed is guaranteed.
In this embodiment, according to the design requirement, two-layer geotechnological check room about laying in the road bed workspace, geotechnological check room adoption is made by HDPE or polyester material, and is economical and practical, lay the convenience, and it is effectual to add the muscle.
In order to ensure the strength requirement of the roadbed, in the embodiment, the thickness of the geocell is 5cm-10 cm.
The method for determining the actually required thickness of the geocell comprises the following steps:
the thickness of the geocell depends on whether the whole roadbed meets the requirement, and the dynamic deformation index is used for evaluation. And (5) initially selecting the height of the geocell to be 5cm, and then carrying out checking calculation on the dynamic deformation of the top surface of the roadbed. If the geocell is qualified, 5cm can be selected as a design value, and if the geocell is not qualified, the height of the geocell is increased, and the geocell is checked again until the geocell is qualified. The design height of the common geocell is 5-15cm, and the engineering requirements can be met.
The method for checking and calculating the dynamic deformation of the top surface of the roadbed comprises the following steps:
step 1: determining the dynamic load parameters of the automobile adopted by design, calculating the accumulated standard equivalent axle number of a lane within the design year according to the requirements of a design task book, and simultaneously determining the parameters of the design traffic volume, the traffic grade, the types of a surface layer and a base layer, the type of a road structure combination and the like;
step 2: obtaining the allowable dynamic deformation control value L of the top surface of the roadbed by utilizing the formula (5) to calculatedr；
In the formula: l isdrThe allowable dynamic deformation value (0.01mm) of the top surface of the roadbed; n is a radical ofeAccumulating equivalent axle times for one lane in a design year; a. thec、AsAnd AbThe coefficients related to the grade of the highway, the type and the property of the structural layer can be determined by referring to the design specification of the asphalt pavement of the highway; a. theaThe road surface structure combination coefficient is the ratio of the dynamic deformation amplitude of the top surface of the roadbed to the dynamic deformation amplitude of the road surface.
And step 3: according to the layered roadbed dynamic theory or by adopting a finite element method, the interaction between the geocell and the soft rock filler is considered, and the actual dynamic deformation value L of the roadbed top surface is calculateddzSo as to satisfy the requirement of the formula (6), namely:
Ldz≤Ldr (6)
and 4, step 4: the roadbed dynamic deformation control checking calculation meets the requirement of resisting deformation damage of the roadbed top surface: if the actual dynamic deformation value L is calculated on the top surface of the roadbeddzNot greater than allowable dynamic deformation control value L of roadbed top surfacedrAnd if the calculation result does not meet the requirement of the formula (6), adjusting the height of the geocell, and checking again until the geocell is qualified, wherein the corresponding geocell thickness is the actually required geocell thickness.
The concrete construction method of the roadbed working area comprises the following steps:
laying a first layer of filler 3 on an emulsified asphalt water-resisting layer, wherein the thickness of the first layer of filler is 28-32 cm, preferably 30cm, compacting the first layer of filler after laying, laying a first layer of geocell 4 on the first layer of filler, aiming at reinforcing soft rock of an upper roadbed, improving the strength and rigidity of the upper roadbed and preventing the roadbed from deforming and cracking, laying a second layer of filler 5 on the first layer of geocell after laying the first layer of geocell, and ensuring that the similar raft foundation structure formed by the first layer of geocell, the second layer of filler and the second layer of geocell has enough integral strength and rigidity, the thickness of the second layer of filler is not too large, the thickness of the second layer of filler is less than 2 times of that of the geocell, and if the thickness of an intermediate interlayer with weak performance is more than 2 times of filler, the integral rigidity and the strength are not ensured, the later deformation is too large, and the effect of a raft foundation cannot be achieved. And after the second layer of filler is paved, compacting, paving a second layer of geocell 6, paving a third layer of filler 7 on the second layer of geocell after the second layer of filler is paved until the depth of the roadbed working area reaches the depth of the roadbed working area obtained by pre-calculation, and then compacting the paved roadbed working area to form the roadbed as shown in figure 3.
In this embodiment, the minimum load ratio of the filler is not less than 5.0, and the minimum load ratio is obtained by testing of road geotechnical test code.
In this embodiment, two layers of geocells jointly form a raft foundation structure layer with higher rigidity. The device can bear and disperse most of upper traffic dynamic load, make up for the rigidity deficiency caused by the wetting of the embankment below the working area depth in the construction period and the operation period, and remarkably improve the overall modulus and rigidity of the roadbed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A construction method of a soft rock roadbed in a rainy and humid area is characterized in that construction of a roadbed working area is carried out according to a preset roadbed working area depth, and the construction of the roadbed working area comprises the following steps:
after the construction of the embankment is finished, paving a waterproof layer on the surface of the constructed embankment;
paving a roadbed working area on the waterproof layer, wherein at least two layers of geocells are arranged in the roadbed working area;
and compacting the roadbed working area.
2. The method for constructing the soft rock roadbed in the rainy and humid area as claimed in claim 1, wherein the depth of the roadbed working area is determined according to the working area depth under the standard axle load, the fitting parameters and the axle load.
3. The method for constructing the soft rock roadbed in the rainy and humid area as claimed in claim 2, wherein the fitting parameter is determined according to the thickness of the pavement structure layer and the roadbed modulus.
4. The method for constructing the soft rock subgrade in the rainy and humid area according to claim 1, wherein the water barrier layer is an emulsified asphalt water barrier layer.
5. The method for constructing the soft rock roadbed in the rainy and humid area as claimed in claim 1, wherein the thickness of the water-resisting layer is 0.5cm-1.5 cm.
6. The method for constructing a soft rock roadbed in a rainy and humid area, according to claim 1, wherein the thickness of the geocell is 5cm to 10cm, and accordingly, the determination method comprises the following steps:
calculating to obtain a dynamic deformation allowable control value of the top surface of the roadbed;
according to the set thickness of the geocell, obtaining an actual dynamic deformation value of the top surface of the roadbed under the set thickness of the geocell according to a layered roadbed dynamic theory or a finite element method;
if the obtained actual dynamic deformation value of the top surface of the roadbed is not greater than the allowable dynamic deformation control value of the top surface of the roadbed, the corresponding geocell thickness is the geocell thickness which is actually required;
otherwise, adjusting the thickness of the set geocell, and calculating the actual dynamic deformation value of the top surface of the roadbed again until the actual dynamic deformation value of the top surface of the roadbed is not greater than the allowable dynamic deformation control value of the top surface of the roadbed, wherein the thickness of the corresponding geocell is the thickness of the geocell actually required.
7. The method for constructing a soft rock roadbed in a rainy and wet area as claimed in claim 1, wherein the distance between adjacent geocells is less than 2 times the thickness of the geocell.
8. The method for constructing the soft rock roadbed in the rainy and humid area as claimed in claim 1, wherein the concrete construction steps of the roadbed working area are as follows:
laying a first layer of filler on the waterproof layer, compacting, laying a first layer of geocell on the first layer of filler, laying a second layer of filler on the first layer of geocell, compacting, laying a second layer of geocell on the second layer of filler, repeating the steps, laying multiple layers of filler and geocell in sequence until the uppermost layer of filler is laid, and then compacting the laid roadbed working area.
9. The method for constructing a soft rock roadbed in a rainy and humid area as claimed in claim 8, wherein the minimum load bearing ratio of the filler is not less than 5.0.
10. The method for constructing a soft rock roadbed in a rainy and humid area as claimed in claim 1, wherein the thickness of the first layer of the filler is 28cm-32 cm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114021227A (en) * | 2021-10-22 | 2022-02-08 | 中国科学院武汉岩土力学研究所 | Method and device for determining mechanical property of road and processing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974877A (en) * | 2010-10-18 | 2011-02-16 | 中铁第四勘察设计院集团有限公司 | Rapid transit railway soft rock-improved soil roadbed structure |
| JP2012158867A (en) * | 2011-01-29 | 2012-08-23 | Osumi Saiseki Kyodokumiai | Manufacturing method for adjusting material for civil engineering and adjusting material for civil engineering |
| CN104532712A (en) * | 2014-12-25 | 2015-04-22 | 中交第二公路勘察设计研究院有限公司 | Design method and structure for preventing settlement-deformation damage of soft-rock subgrade of road |
| CN108755320A (en) * | 2018-08-27 | 2018-11-06 | 山东大学 | A kind of reinforcement Foam lightweight soil Widening Embankment structure and its construction method |
| CN111441211A (en) * | 2020-04-10 | 2020-07-24 | 中铁六局集团天津铁路建设有限公司 | Composite roadbed structure made of carbon soft rock and geosynthetic material |
| CN111622040A (en) * | 2020-05-28 | 2020-09-04 | 交通运输部公路科学研究所 | Expansive soil composite roadbed structure type and construction method thereof |
-
2021
- 2021-05-11 CN CN202110512418.0A patent/CN113215889A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974877A (en) * | 2010-10-18 | 2011-02-16 | 中铁第四勘察设计院集团有限公司 | Rapid transit railway soft rock-improved soil roadbed structure |
| JP2012158867A (en) * | 2011-01-29 | 2012-08-23 | Osumi Saiseki Kyodokumiai | Manufacturing method for adjusting material for civil engineering and adjusting material for civil engineering |
| CN104532712A (en) * | 2014-12-25 | 2015-04-22 | 中交第二公路勘察设计研究院有限公司 | Design method and structure for preventing settlement-deformation damage of soft-rock subgrade of road |
| CN108755320A (en) * | 2018-08-27 | 2018-11-06 | 山东大学 | A kind of reinforcement Foam lightweight soil Widening Embankment structure and its construction method |
| CN111441211A (en) * | 2020-04-10 | 2020-07-24 | 中铁六局集团天津铁路建设有限公司 | Composite roadbed structure made of carbon soft rock and geosynthetic material |
| CN111622040A (en) * | 2020-05-28 | 2020-09-04 | 交通运输部公路科学研究所 | Expansive soil composite roadbed structure type and construction method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 卢正等: "交通荷载作用下公路路基工作区深度研究", 《岩土力学》 * |
| 卢正等: "交通荷载作用下公路路基工作区深度研究", 《岩土力学》, vol. 34, no. 2, 28 February 2013 (2013-02-28), pages 316 - 321 * |
| 卢正等: "基于动变形控制法的路基临界高度与湿度关系研究", 《岩土力学》 * |
| 卢正等: "基于动变形控制法的路基临界高度与湿度关系研究", 《岩土力学》, vol. 35, no. 1, 31 January 2014 (2014-01-31), pages 184 - 188 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114021227A (en) * | 2021-10-22 | 2022-02-08 | 中国科学院武汉岩土力学研究所 | Method and device for determining mechanical property of road and processing equipment |
| CN114021227B (en) * | 2021-10-22 | 2022-05-17 | 中国科学院武汉岩土力学研究所 | Method and device for determining mechanical property of road and processing equipment |
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