CN106368092A - Construction method of high-polymer grouting-reinforced antisettling widened roadbed - Google Patents
Construction method of high-polymer grouting-reinforced antisettling widened roadbed Download PDFInfo
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- CN106368092A CN106368092A CN201610994830.XA CN201610994830A CN106368092A CN 106368092 A CN106368092 A CN 106368092A CN 201610994830 A CN201610994830 A CN 201610994830A CN 106368092 A CN106368092 A CN 106368092A
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- pipe network
- fill stratum
- geotechnique
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- slip casting
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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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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a construction method of a high-polymer grouting-reinforced antisettling widened roadbed. The method is characterized by arranging a geotechnical engineering pipe network; the geotechnical engineering pipe network is a rectangular grid composed of PVC (polyvinyl chloride) pipes arranged in an array mode; the PVC pipes in the rectangular grid communicate with each other; the inside of the geotechnical engineering pipe network is respectively provided with a grouting hole and a vent hole which extend convexly upwards, and a grout passing hole which extends convexly downwards; the geotechnical engineering pipe network is laid in the fill stratum to form the fill stratum geotechnical engineering pipe network; the high-polymer grout is injected into the fill stratum geotechnical engineering pipe network through the grouting hole to form the fill stratum grouted geotechnical engineering pipe network; and the high-polymer grout is also injected into the vertical column hole formed in the fill stratum through the grout passing hole to form the vertical reinforcing column. The method enhances the lateral communication between the new and old road embankments, and effectively controls the differential settlement, so that the new and old roadbeds are combined more firmly and can not easily slump.
Description
Technical field
The present invention relates to the construction method that the embankment in highway widening transformation is widened, more specifically a kind of high polymer note
The construction method of slurry reinforcement anti-settling widening subgrade.
Background technology
With the sustained and rapid development of national economy, the highway transportation quantity required of China increases year by year, some existing public affairs
The traffic flow on road has reached saturation, needs badly and it is carried out widen transformation to improve its traffic capacity, and then adapts to modern warp
The fast-developing needs of Ji.
Roadbed widening is the major way to existing highway dilatation enlarging.Due to the difference between new, old road base with mutually
Effect, the road disease that roadbed widening causes and the decline of road surface overall performance are rather common in Practical Project, have a strong impact on
Traffic safety and comfortableness.In prior art, the subject matter that presence widened by embankment includes:
1st, relative settlement: in old embankment under heavy load effect, the ground under old embankment sinks through consolidation deformation for many years
Fall terminates substantially, and it is quite different newly to widen side ground.Fill on the old roadbed of differing heights differing heights soil layer when, will appear from
The phenomenon of the road surface longitudinal cracking of the differential settlement of ground and its initiation under new-old concrete bond.
2nd, destroy sliding at new and old road embankment loading: in current engineering practice, in order to strengthen the company between new-old concrete bond
Connect, reduce relative settlement, conventional method is by the slope excavating step of existing roadbed, lays GSZ or use light filler
Fill the measures such as widened section roadbed.Geotechnique is laid after step excavation or step excavation on the step of new-old concrete bond joining place
Grid, using the reinforced action of GSZ, can strengthen the connection between new-old concrete bond to a certain extent, reduce new-old concrete bond
Between relative settlement.But potential sliding surface can be formed after step excavation, be likely to result in widened section roadbed and laterally slide
Move；
3rd, side slope slump: after the completion of new embankment, higher or the gradient is larger for side slope, slope protection measures are not
Obtain and be also easy to produce side slope slump at once.
Content of the invention
The present invention is for avoiding the deficiency existing for above-mentioned prior art, providing a kind of high polymer grouting reinforcement anti-settling to open up
The construction method of broad way base, so as to effectively strengthening the lateral ties between new and old embankment, controls the difference of new and old embankment to sink
Fall；Make more firm at new and old road embankment loading, be difficult slump.
The present invention is to solve technical problem to adopt the following technical scheme that
The construction method of high polymer grouting reinforcement anti-settling widening subgrade of the present invention, is characterized in that:
Arranging described high polymer grouting reinforcement anti-settling widening subgrade structure is:
The geotechnological pipe network of setting, is the rectangular mesh being arranged in array being made up of pvc pipe, the pvc pipe phase in rectangular mesh
Intercommunicated；It is respectively arranged with the injected hole protruding out upwards and steam vent, and the slurry excessively protruding out downwards in described geotechnique's pipe network
Hole；
Described geotextile tube net laying is located in fill stratum and forms fill stratum geotechnique's pipe network, and high polymer slurry passes through described injected hole
To fill stratum geotechnique pipe network in slip casting formed fill stratum slip casting geotechnique pipe network, described high polymer slurry also by described cross slurry hole to
It is formed in slip casting in the vertical post holes in fill stratum and form vertical reinforced column；
The interface arranging old roadbed with new roadbed is slope interface, and described fill stratum presses depth of fill placement in layers pressure
Real, geotextile tube net laying is located at the top surface of fill stratum；For described geotechnique's pipe network, fill stratum is formed by slip casting with high polymer slurry
Slip casting geotechnique pipe network, and formed run through slope interface and extend to the vertical fill stratum reinforced column in ground；Described geotechnique
Pipe network is extended with curb geotechnique's pipe network on old roadbed, forms curb with high polymer slurry by slip casting for curb geotechnique's pipe network
Slip casting geotechnique's pipe network, and form the vertical strengthening of road shoulder post being embedded in curb.
Described construction method is carried out as follows:
Step 1: from top to bottom excavated for old roadbed, form slope；Fill stratum is layered, is successively carried out
Fill, and be successively compacted using vibratile compacter, until complete fill stratum fills compacting, and form slope interface；
Step 2: on the curb of old roadbed, and drill through vertical post holes respectively on the surface of fill stratum；
Step 3: on curb and in the surface of fill stratum laying fill stratum geotechnique's pipe network and described fill stratum is geotechnological
Slurry hole of crossing in pipe network is docked one by one with the vertical post holes on correspondence position, and it is fixed using bail, fill stratum geotechnique's pipe network to be carried out
Position；
Step 4: from old roadbed side, and successively towards new roadbed side, high polymer slurry is passed through injected hole to filling out
Carry out slip casting in soil layer geotechnique's pipe network, and passed through slurry hole to slip casting in vertical post holes, form fill stratum slip casting geotextile tube respectively
Net, vertical fill stratum reinforced column and vertical strengthening of road shoulder post, complete the construction of high polymer grouting reinforcement anti-settling widening subgrade.
The feature of the construction method of high polymer grouting reinforcement anti-settling widening subgrade of the present invention lies also in:
In described fill stratum geotechnique's pipe network, the length of side of rectangular mesh is 0.4m～0.6m, a diameter of 18～22mm of pvc pipe；
In including each reinforced column of vertical fill stratum reinforced column and vertical strengthening of road shoulder post, the spacing of adjacent reinforced column is
0.4m～0.6m, a diameter of 16～20mm of each reinforced column, the length of vertical strengthening of road shoulder post is (0.6～0.8) × h, vertically
The length of fill stratum reinforced column is (1.2～1.4) × h, and h is depth of fill.
Compared with prior art, the present invention has the beneficial effect that:
1st, after slip casting terminates, high polymer grouting material expands rapidly reaction to the present invention, spreads until filling out to surrounding
Full geotechnique's pipe network and post holes, effectively strengthen the lateral ties between new and old embankment using slip casting geotechnique's pipe network and reinforced column, and have
Effect controls the relative settlement of new and old embankment.
2nd, after slip casting terminates, high polymer grouting material expands in geotechnological pipe network and post holes and spreads and formed by force the present invention
Degree, the entirety making fill stratum, geotechnological pipe network combine with slope interface or the formation of step interface, effectively strengthen potential cunning
Dynamic face, makes new-old concrete bond junction more firm, is difficult slump.
3rd, the present invention is combined by reinforcing pile between ground, geotechnological pipe network and side slope, is formed in length and breadth in embankment
Staggered three-dimensional pipe network structure is it is achieved that effective side slope protection.
4th, in the present invention, high polymer material is filled with the soil body hole around post holes simultaneously, consolidates new roadbed, the old road of reinforcement
Base.
5th, in the present invention, geotechnological pipe network is formed in one, and work progress is quick, convenient.
Brief description
Fig. 1 applies the embankment widened structure schematic diagram in light fill for the present invention；
Fig. 2 applies the embankment widened structure schematic diagram in general embankment or high embankment for the present invention；
Fig. 3 is the geotextile tube network plane structural representation being layed in fill stratum surface in the present invention；
Fig. 4 is the geotextile tube network plane structural representation being layed in side slope in the present invention；
Fig. 5 is a-a view in Fig. 3；
Fig. 6 is b-b view in Fig. 3；
In figure label: 1 fill stratum, 2 geotechnological pipe networks, 2a fill stratum slip casting geotechnique's pipe network, 2b interlayer slip casting geotechnique's pipe network, 2c
Side slope slip casting geotechnique's pipe network, 3a vertical fill stratum reinforced column, 3b vertical strengthening of road shoulder post, 3c slope reinforcement post, the vertical interlayer of 3d
Reinforced column, 4a slope interface, 4b step interface, 5 is pvc pipe, and 6 cross slurry hole, 7 injected holes, 8 steam vents, 9 dividing plates, 10 soil
Work grid, 11 bails.
Specific embodiment
Referring to Fig. 1 and Fig. 2, the version of high polymer grouting reinforcement anti-settling widening subgrade of the present invention is:
The geotechnological pipe network 2 of setting, is the rectangular mesh being arranged in array being made up of pvc pipe 5, the pvc pipe 5 in rectangular mesh
It is interconnected；It is respectively arranged with the injected hole 7 protruding out upwards and steam vent 8, and the slurry excessively protruding out downwards in geotechnological pipe network 2
Hole 6.
By geotechnological pipe network 2 be laid in fill stratum 1 formed fill stratum geotechnique pipe network, high polymer slurry pass through injected hole 7 to
In fill stratum geotechnique's pipe network, slip casting forms fill stratum slip casting geotechnique pipe network 2a, and high polymer slurry is also by crossing slurry hole 6 to being formed in
Slip casting in vertical post holes in fill stratum 1 forms vertical reinforced column.
Referring to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, geotechnological pipe network 2 is the global formation pipe network with pvc as material, in geotechnological pipe network 2
In dividing plate 9 is distributed with, using dividing plate 9, geotechnological pipe network 2 is divided into separate each region, in each region include at least have
One injected hole 7, equally distributed multiple steam vents 8, and cross slurry hole 6 by the multiple of setting position distribution；In fill stratum geotechnique
It is provided with GSZ 10, GSZ 1 is integrally formed with pvc pipe 5, with GSZ 10 in rectangle in the rectangular mesh of pipe network
As reinforcement contact in grid；Cross slurry hole 6 and injected hole 7 is arranged on the site position of rectangular mesh of geotechnological pipe network 2.
In being embodied as, volumetric usage q of the high polymer grouting material in separate each region is: q=v × b/a, its
In: a is the expansion multiplying power of high polymer grouting material, a=5～25；B is excessive slip casting coefficient, b=1.05～1.10；V is respective area
The slip casting capacity in domain.
Embodiment 1:
The present embodiment high polymer grouting reinforcement anti-settling widening subgrade is to be implemented for light fill, and light fill is to show the way
Dike is highly not more than the embankment of 1.5m.
As shown in figure 1, being directed to light fill, the interface arranging old roadbed with new roadbed is slope interface 4a, fill stratum 1
By depth of fill placement in layers compacting, geotextile tube net laying is located at the top surface of fill stratum 1；Led to high polymer slurry for geotechnological pipe network
Cross slip casting and form fill stratum slip casting geotechnique pipe network 2a, and formation runs through slope interface 4a and extends to vertically filling out in ground
Soil layer reinforced column 3a；Geotechnological pipe network is extended with curb geotechnique's pipe network on old roadbed, is starched with high polymer for curb geotechnique's pipe network
Material forms curb slip casting geotechnique's pipe network by slip casting, and forms the vertical strengthening of road shoulder post 3b being embedded in curb.
In the present embodiment, corresponding structure setting also includes:
In fill stratum geotechnique's pipe network, the length of side of rectangular mesh is 0.4m～0.6m, a diameter of 18～22mm of pvc pipe.
In each reinforced column including vertical fill stratum reinforced column 3a and vertical strengthening of road shoulder post 3b, between adjacent reinforced column
Away from a diameter of 16～20mm for 0.4m～0.6m, each reinforced column, the length of vertical strengthening of road shoulder post 3b is 0.6～0.8 × h,
The length of vertical fill stratum reinforced column 3a is 1.2～1.4 × h, and h is depth of fill.
The construction method that in the present embodiment, high polymer grouting reinforcement anti-settling widening subgrade is directed to light fill is to walk by following
Suddenly constructed:
Step 1: from top to bottom excavated for old roadbed, form slope, from top to bottom clear up tiltedly for old roadbed
Domatic, remove weeds and rubble；Fill stratum 1 is layered, is successively filled, and be successively compacted using vibratile compacter,
Until complete fill stratum 1 fills compacting, and form slope interface 4a；
Step 2: on the curb of old roadbed, and drill through vertical post holes respectively on the surface of fill stratum 1；
Step 3: on curb and in the surface of fill stratum 1 laying fill stratum geotechnique's pipe network, and by fill stratum geotextile tube
Slurry hole 6 of crossing in net is docked one by one with the vertical post holes on correspondence position, and it is fixed using bail 11, fill stratum geotechnique's pipe network to be carried out
Position；
Step 4: from old roadbed side, and successively towards new roadbed side, high polymer slurry is passed through injected hole to filling out
Carry out slip casting in soil layer geotechnique's pipe network, and passed through slurry hole to slip casting in vertical post holes, form fill stratum slip casting geotextile tube respectively
Net 2a, vertical fill stratum reinforced column 3a and vertical strengthening of road shoulder post 3b, complete high polymer grouting reinforcement anti-settling widening subgrade
Construction.
Embodiment 2:
In the present embodiment, high polymer grouting reinforcement anti-settling widening subgrade is for general embankment or high embankment, general embankment
Refer to embankment between 1.5m to 18m for the depth of fill, high embankment refers to that depth of fill is not less than the embankment of 18m.
As shown in Fig. 2 being directed to general embankment or high embankment: the interface arranging old roadbed with new roadbed is step interface
4b, fill stratum 1 fills compacting by the highl stratification of corresponding one layer of step in step interface 4b, forms layering of respectively banketing, geotechnique
Pipe network is laid on each layer and bankets the top surface of layering extend in geotechnological pipe network between corresponding one layer of step top surface cambium layer；For layer
Between geotechnological pipe network interlayer slip casting geotechnique pipe network 2b is formed by slip casting with high polymer slurry, and the vertical interlayer reinforced column of formation
3d, vertical interlayer reinforced column 3d are distributed in step surface neutralization and banket in layering.
Geotextile tube net laying is located in side slope and forms side slope geotechnique's pipe network, led to high polymer slurry for side slope geotechnique's pipe network
Cross slip casting and form side slope slip casting geotechnique pipe network 2c, and form the slope reinforcement stake 3c vertical with side slope face.
In the present embodiment, corresponding structure setting also includes:
Length of side l of rectangular mesh in interlayer geotechnique's pipe network1For 0.4m～0.6m, the diameter d of pvc pipe1For 18～22mm.
Length of side l of rectangular mesh in side slope geotechnique's pipe network2For,The diameter d of pvc pipe2For:Wherein, α is the angle of side slope.
Vertical interlayer reinforced column 3d has two rows in step, has 3～5 rows in layering of banketing, and adjacent vertical interlayer is reinforced
The spacing of post 3d is 0.4m～0.6m, and a diameter of 16～20mm of each vertical interlayer reinforced column 3d, apart from the nearest row of side slope
The length of vertical interlayer reinforced column is 2.4～2.6 × h, and other length respectively arranging vertical interlayer reinforced column are 1.4～1.6 × h, h
Height for corresponding one layer of step surface.
The distribution of slope reinforcement post 3c is: arranges multiple rows of slope reinforcement post, a minimum row from bottom to top by the toe of embankment
The distance apart from side slope base for the capital of slope reinforcement post is l2, the spacing between the capital of adjacent two row's slope reinforcement posts is also
l2, a diameter of 16～20mm of slope reinforcement post, length d of jth row slope reinforcement postjFor:
When j=1～3, dj=1.4jl2tanα；
When j is more than 3, dj=d3, j is natural number；
In step interface 4b, the height of step is 0.8m～1.0m, and the width of step is 2m～2.5m.
In the present embodiment, high polymer grouting reinforcement anti-settling widening subgrade is directed to the construction method of general embankment and high embankment
Constructed as follows:
Step 1: from top to bottom excavated for old roadbed, form step interface 4b；Connect with step interface 4b,
And fill compacting formation by the highl stratification of monolayer step surface and banket layering；
Step 2: on the surface of layering of banketing and vertical post holes is drilled through respectively on corresponding one layer of step surface；
Step 3: the surface of layering of banketing and on corresponding one layer of step surface laying interlayer geotechnique's pipe network, and by layer
Between slurry hole 6 of crossing in geotechnological pipe network dock one by one with the vertical post holes on correspondence position, using bail 11 to interlayer geotechnological pipe network
Positioned, and filled the thick embankment soil of one layer of 40mm～50mm on the net in the interlayer geotextile tube laid, kept geotextile tube
Injected hole 7 in net and steam vent 8 are to protrude out upwards and are unobstructed；
Step 4: by the order of layering of banketing after first step surface, high polymer slurry is passed sequentially through injected hole to interlayer geotechnique
Carry out slip casting in pipe network, and passed through slurry hole to slip casting in vertical post holes, form interlayer slip casting geotechnique pipe network 2b and each perpendicular respectively
To interlayer reinforced column 3d, complete the construction of monolayer reinforced structure；i
Step 5: from bottom to top, it is layered by the height of every layer of step surface, each monolayer reinforced structure of constructing one by one, until
Fill stratum 1 all fills compacting；
Step 6: laying side slope geotechnique's pipe network in side slope, make crossing on slurry hole 6 and correspondence position in side slope geotechnique's pipe network
Oblique post holes dock one by one, using bail 11 side slope geotechnique pipe network positioned；By high polymer slurry pass through injected hole to
Carry out slip casting in side slope geotechnique's pipe network, and passed through slurry hole to slip casting in oblique post holes, formed by side slope slip casting geotechnique pipe network 2c
The slope protection structure constituting with slope reinforcement post 3c, completes the construction of high polymer grouting reinforcement anti-settling widening subgrade.
It is the construction completing fill stratum with step 1 to step 5 in the present embodiment；Then complete slope construction by step 6；If
It is that depth of fill reaches 8m, by the shoulder height of 1.0～1.5m, its step surface will reach 5～8 grades, therefore, often complete 5～6
After the construction of layer fill stratum, carry out side slope slip casting protection, so can ensure that the stable of side slope of embankment it is ensured that construction is pacified
Entirely.
Claims (2)
1. a kind of construction method of high polymer grouting reinforcement anti-settling widening subgrade, is characterized in that:
Setting high polymer grouting reinforcement anti-settling widening subgrade structure is:
The geotechnological pipe network (2) of setting, is the rectangular mesh being arranged in array being made up of pvc pipe (5), the pvc pipe in rectangular mesh
(5) it is interconnected；It is respectively arranged with the injected hole (7) protruding out upwards and steam vent (8) in described geotechnique's pipe network (2), and
Protrude out downwards crosses slurry hole (6)；
Described geotechnique's pipe network (2) is laid in fill stratum (1) and forms fill stratum geotechnique's pipe network, and high polymer slurry is by described slip casting
Hole (7) forms fill stratum slip casting geotechnique's pipe network (2a) to slip casting in fill stratum geotechnique's pipe network, and described high polymer slurry is also by institute
State slurry hole (6) and form vertical reinforced column to slip casting in the vertical post holes being formed in fill stratum (1)；
The interface arranging old roadbed with new roadbed is slope interface (4a), and described fill stratum (1) is filled out by depth of fill layering
Build compacting, geotextile tube net laying is located at the top surface of fill stratum (1)；Formed by slip casting with high polymer slurry for described geotechnique's pipe network
Fill stratum slip casting geotechnique's pipe network (2a), and form the vertical fill stratum that runs through slope interface (4a) and extend in ground and add
Gu post (3a)；Described geotechnique's pipe network is extended with curb geotechnique's pipe network on old roadbed, is starched with high polymer for curb geotechnique's pipe network
Material forms curb slip casting geotechnique's pipe network by slip casting, and forms the vertical strengthening of road shoulder post (3b) being embedded in curb；
Described construction method is carried out as follows:
Step 1: from top to bottom excavated for old roadbed, form slope；Fill stratum (1) is layered, is successively carried out
Fill, and be successively compacted using vibratile compacter, until complete fill stratum (1) fills compacting, and form slope interface
(4a)；
Step 2: on the curb of old roadbed, and drill through vertical post holes respectively on the surface of fill stratum (1)；
Step 3: on curb and in the surface of fill stratum (1) laying fill stratum geotechnique's pipe network and described fill stratum is geotechnological
Slurry hole (6) of crossing in pipe network is docked one by one with the vertical post holes on correspondence position, using bail (11) to fill stratum geotechnique's pipe network
Positioned；
Step 4: from old roadbed side, and successively towards new roadbed side, high polymer slurry is passed through injected hole to fill stratum
Carry out slip casting in geotechnological pipe network, and passed through slurry hole to slip casting in vertical post holes, form fill stratum slip casting geotechnique's pipe network respectively
(2a), vertical fill stratum reinforced column (3a) and vertical strengthening of road shoulder post (3b), complete high polymer grouting reinforcement anti-settling and widen
The construction of roadbed.
2. the construction method of high polymer grouting reinforcement anti-settling widening subgrade according to claim 1, is characterized in that:
In described fill stratum geotechnique's pipe network, the length of side of rectangular mesh is 0.4m～0.6m, a diameter of 18～22mm of pvc pipe；
In including each reinforced column of vertical fill stratum reinforced column (3a) and vertical strengthening of road shoulder post (3b), between adjacent reinforced column
Away from a diameter of 16～20mm for 0.4m～0.6m, each reinforced column, the length of vertical strengthening of road shoulder post (3b) is (0.6～0.8)
× h, the length of vertical fill stratum reinforced column (3a) is (1.2～1.4) × h, and h is depth of fill.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610994830.XA CN106368092B (en) | 2016-11-11 | 2016-11-11 | A kind of construction method of high polymer grouting reinforcement anti-settling widening subgrade |
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| CN201610994830.XA CN106368092B (en) | 2016-11-11 | 2016-11-11 | A kind of construction method of high polymer grouting reinforcement anti-settling widening subgrade |
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| CN106368092B CN106368092B (en) | 2018-07-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737592A (en) * | 2021-08-27 | 2021-12-03 | 中交一公局第五工程有限公司 | Highway subgrade widening structure |
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| JPS5673715A (en) * | 1979-11-22 | 1981-06-18 | Yuichiro Takahashi | Stabilization of soft ground by construction of underground wall |
| JP2006056909A (en) * | 2004-07-20 | 2006-03-02 | Kyokado Eng Co Ltd | Plastic grout and grouting technique |
| CN102966072A (en) * | 2012-11-14 | 2013-03-13 | 河海大学 | Construction method for treating widened and heightened engineering joint surfaces of dikes on soft clay foundation |
| CN103074886A (en) * | 2013-01-17 | 2013-05-01 | 广州市市政工程设计研究院 | Grouted geogrid |
| CN103334371A (en) * | 2013-07-05 | 2013-10-02 | 中南大学 | Roadbed subsidence grouting treatment structure and construction method thereof |
| CN104746501A (en) * | 2015-04-16 | 2015-07-01 | 中南大学 | Treatment method and structure of bridge-head foundation sliding settlement |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5673715A (en) * | 1979-11-22 | 1981-06-18 | Yuichiro Takahashi | Stabilization of soft ground by construction of underground wall |
| JP2006056909A (en) * | 2004-07-20 | 2006-03-02 | Kyokado Eng Co Ltd | Plastic grout and grouting technique |
| CN102966072A (en) * | 2012-11-14 | 2013-03-13 | 河海大学 | Construction method for treating widened and heightened engineering joint surfaces of dikes on soft clay foundation |
| CN103074886A (en) * | 2013-01-17 | 2013-05-01 | 广州市市政工程设计研究院 | Grouted geogrid |
| CN103334371A (en) * | 2013-07-05 | 2013-10-02 | 中南大学 | Roadbed subsidence grouting treatment structure and construction method thereof |
| CN104746501A (en) * | 2015-04-16 | 2015-07-01 | 中南大学 | Treatment method and structure of bridge-head foundation sliding settlement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737592A (en) * | 2021-08-27 | 2021-12-03 | 中交一公局第五工程有限公司 | Highway subgrade widening structure |
| CN113737592B (en) * | 2021-08-27 | 2023-03-10 | 中交一公局第五工程有限公司 | Highway subgrade widening structure |
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| Publication number | Publication date |
|---|---|
| CN106368092B (en) | 2018-07-03 |
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