CN114855522A - Replacement and filling method for treating municipal road soft soil foundation - Google Patents
Replacement and filling method for treating municipal road soft soil foundation Download PDFInfo
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- CN114855522A CN114855522A CN202210528386.8A CN202210528386A CN114855522A CN 114855522 A CN114855522 A CN 114855522A CN 202210528386 A CN202210528386 A CN 202210528386A CN 114855522 A CN114855522 A CN 114855522A
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- 239000002689 soil Substances 0.000 title claims abstract description 68
- 238000011049 filling Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000004575 stone Substances 0.000 claims abstract description 75
- 239000004746 geotextile Substances 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 85
- 239000002344 surface layer Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 12
- 230000035699 permeability Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000029152 Small face Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- 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
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Environmental & Geological Engineering (AREA)
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- Architecture (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 discloses a replacement method for treating a soft soil foundation of a municipal road, and relates to the technical field of municipal roads. The replacement and filling method for treating the soft soil foundation of the municipal road sequentially comprises a pavement structure layer, roadbed filling, non-woven geotextile, a high-strength steel-plastic geogrid wrapped broken stone mattress layer, a stone structure layer and a soft soil layer from top to bottom. According to the method for replacing and filling the soft soil foundation of the municipal road, the rubble is filled and is vibrated and rolled, the soft soil is subjected to vibration extrusion, disturbance and other factors, the soil layer structure is damaged, after the rubble is pressed in, the size of soil particles is re-integrated, pore water is discharged through the rubble, the pressure inside the pores is gradually dissipated, and the property of the lower-layer soft soil is greatly improved.
Description
Technical Field
The invention relates to the technical field of municipal roads, in particular to a replacement and filling method for treating a soft soil foundation of a municipal road.
Background
Due to the influence of numerous factors on the construction quality of the municipal roads, certain problems exist, the progress and the quality of the municipal road construction are influenced by the problems, particularly the problem of soft soil foundations, and the smooth progress of urban construction is finally hindered if no good solution is provided.
The soft soil mainly refers to soil with lower strength than that of a normal soil layer, and the soil has the remarkable characteristics of high natural water content, poor water permeability, low shear strength, high compressibility and the like. Constructing municipal roads on soft soil foundations can cause various road surface damages and instability phenomena, such as cracking, sinking, slippage and the like of the roadbed, due to uneven settlement or excessive residual settlement of the roadbed. At present, the common soft soil treatment methods mainly comprise: drainage prepressing method, powder mixing pile deep treatment method, light embankment, cushion layer and shallow layer treatment, overload prepressing, sand pile, gravel pile and rigid pile. But the treatment scheme adopted for the municipal road with shallow soft soil thickness and small roadbed filling height has the characteristics of high construction difficulty, long construction period, high construction cost and the like.
Aiming at the defects of the municipal road soft soil treatment technology that the current situation is suitable for the situation that the thickness of the soft soil is not deep (2-6 m) and the roadbed filling height is lower, the invention needs to invent a treatment scheme which is convenient and fast to construct, high in speed, low in manufacturing cost, high in construction efficiency and capable of controlling the stability and settlement of the roadbed, and therefore a replacement filling structure for treating the municipal road soft soil foundation is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a replacement and filling method for treating a soft soil foundation of a municipal road, which solves the problems that various road surface damages and instability phenomena, such as cracking, sinking, slippage and the like of the roadbed, are caused by uneven settlement or excessive residual settlement of the roadbed when the municipal road is built on the soft soil foundation. At present, the common soft soil treatment methods mainly comprise: drainage prepressing method, powder mixing pile deep treatment method, light embankment, cushion course and shallow treatment, overload prepressing, sand pile, gravel pile and rigid pile. But the problems of high construction difficulty, long construction period, high construction cost and the like exist in the treatment scheme aiming at the municipal roads with shallow soft soil thickness and small roadbed filling height.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a replacement and filling method for treating a municipal road soft soil foundation is characterized in that a pavement structure layer, roadbed filling, non-woven geotextile, a high-strength steel-plastic geogrid wrapped broken stone mattress layer, a stone structure layer and a soft soil layer are sequentially arranged from top to bottom, and the replacement and filling method specifically comprises the following operations:
s1, removing the surface layer planting soil, leveling the field, and removing the surface layer fluid state sludge of the soft soil if necessary;
s2, throwing and filling a rubble structure layer, throwing and filling stones with larger grain sizes, facing downwards on the large side and facing upwards on the small side, placing stably and tightly close, paving small stones, filling rubbles, vibrating and rolling the rubbles, fully pressing the rubbles into soft soil after replacing and extruding the rubbles, and establishing a rubble crust layer, wherein the throwing and filling thickness of the first layer is properly thickened, the grain size of the first layer of rubbles is not smaller than 30cm, the layered paving thickness of the rubbles is generally 40-60 cm, the total thickness range of the rubbles is generally 80-120 cm, the thickness of the rubbles layer can be properly increased in a particularly rich section of underground water, medium-hard or hard stones are adopted as the rubbles, and the water-saturated compressive strength is not smaller than 30 Mpa;
s3, paving a broken stone cushion layer on the top of the rubble, wrapping the top and the bottom of the rubble by using a high-strength steel-plastic geogrid to form a mattress cushion layer with certain tensile strength and integrity, wrapping the high-strength steel-plastic geogrid by using a high-strength steel-plastic geogrid, wherein the longitudinal and transverse tensile strength is more than or equal to 80kN/m, the longitudinal and transverse ultimate elongation is less than or equal to 3%, the ultimate peeling force of a welding point is more than or equal to 100N, wrapping the bottom and the bottom of the broken stone cushion layer by using the high-strength steel-plastic geogrid to form the mattress cushion layer, paving the thickness of the rubble layer is 30-40cm, the rubble is hard rock rubble, the particle size is generally 2-4cm, and the maximum particle size is less than 6 cm. The particle size of the crushed stone is larger than the aperture of the meshes of the geogrid so as to prevent the crushed stone from being extruded downwards out of the bidirectional lattices;
s4, paving a layer of non-woven geotextile with functions of isolation, filtration and reinforcement at the top of the broken stones, filling roadbed filling and newly-built pavement structure layers on the geotextile, arranging transverse broken stone blind ditches at intervals on two sides, wherein the transverse drainage blind ditches adopt geotextile and comprise broken stone structures, the tops of the blind ditches are flush with the tops of broken stone cushion layers, the bottoms of the blind ditches are not higher than the bottoms of the broken stones, the quality of the non-woven geotextile and the geotextile is not less than 400g/m2, and the geotextile has the performances of isolation, reinforcement, filtration and the like.
(III) advantageous effects
The invention provides a replacement and filling method for treating a municipal road soft soil foundation. The method has the following beneficial effects:
according to the method for replacing and filling the soft soil foundation of the municipal road, the rubble is filled and is vibrated and rolled, the soft soil is subjected to vibration extrusion, disturbance and other factors, the soil layer structure is damaged, after the rubble is pressed in, the size of soil particles is re-integrated, pore water is discharged through the rubble, the pressure inside the pores is gradually dissipated, and the property of the lower-layer soft soil is greatly improved. After the replacement and compaction of the flaky stones, the flaky stones are fully pressed into the soft soil, and a flaky stone hard shell layer is established to improve the bearing capacity of the foundation and reduce the subsidence. The flaky and broken stone mattress layers also have good water permeability, so that the consolidation of the foundation can be accelerated, and the structural strength of soft soil can be improved or recovered. The mattress layer formed by wrapping the broken stones by the geogrid can evenly share the road filling and the traffic load to the flaky stone hard shell layer, so that the uneven settlement is reduced.
Drawings
FIG. 1 is a cross-sectional view of a replacement and filling structure for treating soft soil foundations of municipal roads according to the invention.
FIG. 2 is a longitudinal sectional view of a replacement and filling structure for treating soft soil foundation of a municipal road provided by the invention.
FIG. 3 is a schematic plan view of a replacement and filling structure for treating soft soil foundations of municipal roads provided by the invention.
Fig. 4 is a rough view of a blind ditch provided on the road side.
In the figure: 1-pavement structure layer, 2-roadbed filling, 3-non-woven geotextile, 4-high-strength steel-plastic geogrid, 5-gravel layer, 6-rubble structure layer, 7-soft soil layer and 8-blind ditch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a replacement and filling method for treating a municipal road soft soil foundation is characterized in that a pavement structure layer, roadbed filling, non-woven geotextile, a high-strength steel-plastic geogrid wrapped broken stone mattress layer, a stone structure layer and a soft soil layer are sequentially arranged from top to bottom, and the replacement and filling method specifically comprises the following operations:
s1, removing the surface layer planting soil, leveling the field, and removing the surface layer fluid state sludge of the soft soil if necessary;
s2, throwing and filling a rubble structure layer, throwing and filling stones with larger grain sizes, facing downwards on the large side and facing upwards on the small side, placing stably and tightly close, paving small stones, filling rubbles, vibrating and rolling the rubbles, fully pressing the rubbles into soft soil after replacing and extruding the rubbles, and establishing a rubble crust layer, wherein the throwing and filling thickness of the first layer is properly thickened, the grain size of the first layer of rubbles is not smaller than 30cm, the layered paving thickness of the rubbles is generally 40-60 cm, the total thickness range of the rubbles is generally 80-120 cm, the thickness of the rubbles layer can be properly increased in a particularly rich section of underground water, medium-hard or hard stones are adopted as the rubbles, and the water-saturated compressive strength is not smaller than 30 Mpa;
s3, paving a broken stone cushion layer on the top of the rubble, wrapping the top and the bottom of the rubble by using a high-strength steel-plastic geogrid to form a mattress cushion layer with certain tensile strength and integrity, wrapping the high-strength steel-plastic geogrid by using a high-strength steel-plastic geogrid, wherein the longitudinal and transverse tensile strength is more than or equal to 80kN/m, the longitudinal and transverse ultimate elongation is less than or equal to 3%, the ultimate peeling force of a welding point is more than or equal to 100N, wrapping the bottom and the bottom of the broken stone cushion layer by using the high-strength steel-plastic geogrid to form the mattress cushion layer, paving the thickness of the rubble layer is 30-40cm, the rubble is hard rock rubble, the particle size is generally 2-4cm, and the maximum particle size is less than 6 cm. The particle size of the crushed stone is larger than the aperture of the meshes of the geogrid so as to prevent the crushed stone from being extruded downwards out of the bidirectional lattices;
s4, paving a layer of non-woven geotextile with functions of isolation, filtration and reinforcement at the top of the broken stones, filling roadbed filling and newly-built pavement structure layers on the geotextile, arranging transverse broken stone blind ditches at intervals on two sides, wherein the transverse drainage blind ditches adopt geotextile and comprise broken stone structures, the tops of the blind ditches are flush with the tops of broken stone cushion layers, the bottoms of the blind ditches are not higher than the bottoms of the broken stones, the quality of the non-woven geotextile and the geotextile is not less than 400g/m2, and the geotextile has the performances of isolation, reinforcement, filtration and the like.
Example (b):
and the surface layer is removed, the field is flat and has no obvious fluctuation, and sludge in the soft soil surface layer is removed when necessary.
And (3) throwing and filling the rubble 7, wherein the throwing and filling thickness of the first layer is properly thickened, the particle size of the first layer of rubble is not smaller than 25cm, the layered paving thickness of the rubble is generally 40-60 cm, the total thickness range of the rubble layer is generally 80-120 cm, the thickness of the rubble layer can be properly increased in a section with particularly abundant underground water, the rubble is medium-hard or hard rock, and the water-saturated compressive strength is not smaller than 30 Mpa.
When the rubble 7 is replaced, layered filling is needed, rubble materials with different gradations are needed to be used separately, when the rubble is selected, the grain diameter is controlled to be 20-40cm, gaps are needed to be filled with fine materials such as broken stones and coarse slag, and the good quality rubbles are needed to be selected, so that inferior broken slag cannot be selected.
Large stone with larger grain size faces downwards and small faces upwards, is placed stably and closely close, small stones are paved, the placing sizes are uniform, finally small stones or stone slag are used for leveling, stone chips are used for caulking, and then compaction is carried out. When the stone with the grain diameter below 25cm is artificially paved and filled, the stone can be directly paved and leveled in a layering way, but hard stones with larger sizes are prevented from being concentrated, and the stone is required to have uniform grain diameter and be rolled in a layering way.
The earth-working grille 4 is paved on the top of the rubble 7, a high-strength steel-plastic geogrid is adopted, the longitudinal and transverse tensile strength is more than or equal to 80kN/m, the longitudinal and transverse ultimate elongation is less than or equal to 3%, and the ultimate peel force of a welding point is more than or equal to 100N. When the geogrids 4 are laid, the bottom surfaces are flat and compact, the geogrids are generally paved, straightened and not overlapped, and cannot be curled or twisted, two adjacent geogrids need to be lapped for 20cm, the lapped parts of the geogrids are connected in an inserting mode through 8 iron wires every 1 m in the transverse direction of a roadbed, and the geogrids are fixed on the ground through U-shaped nails every 1.5-2m on the laid geogrids.
Paving a broken stone cushion layer 5, wherein the bottom and the bottom of the broken stone cushion layer 5 are wrapped by a high-strength steel-plastic geogrid to form a mattress cushion layer, the paving thickness of a broken stone layer is 30-40cm, the broken stone layer 5 is made of hard rock broken stones, the particle size of the broken stones is generally 2-4cm, and the maximum particle size is smaller than 6 cm. The crushed stone has a particle size larger than the mesh aperture of the geogrid so as to prevent the crushed stone from being extruded downwards out of the bidirectional grid.
The broken stone mattress layer 5 has good water permeability, can accelerate the consolidation of the foundation and improve or recover the structural strength of the soft soil layer. The mattress layer formed by wrapping the broken stones by the geogrid can evenly share the road filling and the traffic load to the flaky stone hard shell layer, so that the uneven settlement is reduced.
The both sides of rubble bed course 5 set up horizontal drainage french drain 8, and drainage french drain 8 adopts geotechnological cloth to include the rubble structure, and the french drain top flushes with rubble bed course top, and the bottom should not be higher than the piece stone bottom, in time with the hole water discharge roadbed scope for the foundation concreties.
The non-woven geotextile 3 is laid on the top of the gravel layer 5, the non-woven geotextile 3 has the effects of isolation, filtration, reinforcement and the like, and the geotextile is used for isolating the roadbed filling and the soft soil replacement filling structure, so that two kinds of materials are not lost and mixed, the integral structure and function of the materials are maintained, and the load bearing capacity of the structure is enhanced. The good air permeability and water permeability of the geotextile are utilized to lead water flow to pass through, and soil particles, fine sand, small stones and the like are effectively intercepted to keep the stability of water and soil engineering.
In conclusion, according to the replacement and filling method for treating the soft soil foundation of the municipal road, the rubbles are filled and are vibrated and rolled, the soft soil is vibrated, extruded and disturbed, the soil layer structure is damaged, the sizes of soil particles are integrated again after the rubbles are pressed in, pore water is discharged through the rubbles, the pressure in pores is gradually dissipated, and the property of the soft soil at the lower layer is greatly improved. After the replacement and compaction of the rubbles, the rubbles are fully pressed into the soft soil, and a rubble hard shell layer is established, so that the bearing capacity of the foundation is improved, and the subsidence is reduced. The flaky and broken stone mattress layers also have good water permeability, so that the consolidation of the foundation can be accelerated, and the structural strength of soft soil can be improved or recovered. The mattress layer formed by wrapping the broken stones by the geogrid can evenly share the road filling and the traffic load to the flaky stone hard shell layer, so that the uneven settlement is reduced.
The soft soil foundation replacement structure forms a replacement structure layer with high tensile strength and good plate body property on the surface layer of the soft soil foundation, so that the construction cost can be saved, the construction progress can be accelerated, the subgrade settlement can be effectively reduced, the stability of the subgrade can be improved, and good economic and technical benefits can be realized. Is particularly suitable for municipal roads with soft soil thickness of 2-6 m and lower roadbed filling height.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A replacement and filling method for treating municipal road soft soil foundation is characterized by comprising the following steps: the structure is from last to down being geogrid parcel rubble mattress layer, stone structure layer, soft soil layer are moulded to road surface structure layer, road bed filling, non-woven geotechnique's cloth, high strength steel in proper order, and concrete operation is as follows:
s1, removing the surface layer planting soil, leveling the field, and removing the surface layer fluid state sludge of the soft soil if necessary;
s2, throwing and filling a rubble structure layer, throwing and filling stones with larger grain sizes, facing downwards on the large side and facing upwards on the small side, placing stably and tightly close, paving small stones, filling rubbles, vibrating and rolling the rubbles, fully pressing the rubbles into soft soil after replacing and extruding the rubbles, and establishing a rubble crust layer, wherein the throwing and filling thickness of the first layer is properly thickened, the grain size of the first layer of rubbles is not smaller than 30cm, the layered paving thickness of the rubbles is generally 40-60 cm, the total thickness range of the rubbles is generally 80-120 cm, the thickness of the rubbles layer can be properly increased in a particularly rich section of underground water, medium-hard or hard stones are adopted as the rubbles, and the water-saturated compressive strength is not smaller than 30 Mpa;
s3, paving a broken stone cushion layer on the top of the rubble, wrapping the top and the bottom of the rubble by using a high-strength steel-plastic geogrid to form a mattress cushion layer with certain tensile strength and integrity, wrapping the high-strength steel-plastic geogrid by using a high-strength steel-plastic geogrid, wherein the longitudinal and transverse tensile strength is more than or equal to 80kN/m, the longitudinal and transverse ultimate elongation is less than or equal to 3%, the ultimate peeling force of a welding point is more than or equal to 100N, wrapping the bottom and the bottom of the broken stone cushion layer by using the high-strength steel-plastic geogrid to form the mattress cushion layer, paving the thickness of the rubble layer is 30-40cm, the rubble is hard rock rubble, the particle size is generally 2-4cm, and the maximum particle size is less than 6 cm. The particle size of the crushed stone is larger than the mesh aperture of the geogrid so as to prevent the crushed stone from being extruded out of the bidirectional lattices downwards;
s4, paving a layer of non-woven geotextile with functions of isolation, filtration and reinforcement at the top of the broken stones, filling roadbed filling and newly-built pavement structure layers on the geotextile, arranging transverse broken stone blind ditches at intervals on two sides, wherein the transverse drainage blind ditches adopt geotextile and comprise broken stone structures, the tops of the blind ditches are flush with the tops of broken stone cushion layers, the bottoms of the blind ditches are not higher than the bottoms of the broken stones, the quality of the non-woven geotextile and the geotextile is not less than 400g/m2, and the geotextile has the performances of isolation, reinforcement, filtration and the like.
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| CN202210528386.8A CN114855522A (en) | 2022-05-16 | 2022-05-16 | Replacement and filling method for treating municipal road soft soil foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115287954A (en) * | 2022-08-10 | 2022-11-04 | 中建五局土木工程有限公司 | Coastal hydraulic reclamation area roadbed and processing construction method |
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| CN204608536U (en) * | 2014-11-28 | 2015-09-02 | 天津二十冶建设有限公司 | A kind of high-fill roadbed structure |
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| CN113802426A (en) * | 2021-10-21 | 2021-12-17 | 华蓝设计（集团）有限公司 | Method for treating recent road filling foundation by adopting rubble compaction reinforced cushion layer method |
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2022
- 2022-05-16 CN CN202210528386.8A patent/CN114855522A/en active Pending
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| CN204039855U (en) * | 2014-08-12 | 2014-12-24 | 河南省公路工程局集团有限公司 | Shallow layer soft ground section gangue roadbed |
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| CN115287954A (en) * | 2022-08-10 | 2022-11-04 | 中建五局土木工程有限公司 | Coastal hydraulic reclamation area roadbed and processing construction method |
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Application publication date: 20220805 |