CN108677941A - A kind of steel plate and channel steel band combined type face layer soil nail wall - Google Patents

A kind of steel plate and channel steel band combined type face layer soil nail wall Download PDF

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Publication number
CN108677941A
CN108677941A CN201810586876.7A CN201810586876A CN108677941A CN 108677941 A CN108677941 A CN 108677941A CN 201810586876 A CN201810586876 A CN 201810586876A CN 108677941 A CN108677941 A CN 108677941A
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China
Prior art keywords
soil
band
layer
steel band
nail wall
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CN201810586876.7A
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Chinese (zh)
Inventor
代国忠
张亚兴
施维成
李书进
史贵才
李雄威
章泽南
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Changzhou Institute of Technology
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Changzhou Institute of Technology
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Priority to CN201810586876.7A priority Critical patent/CN108677941A/en
Publication of CN108677941A publication Critical patent/CN108677941A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • E02D5/76Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E02D5/765Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

The invention discloses a kind of steel plates and channel steel band combined type face layer soil nail wall, including vertical slot steel band, transverse channel steels band, soil nailing bar, locking nut, screw, sheet metal, tapping pipe, the vertical slot steel band is mated formation in the slight slope slope surface of excavation, its notch direction is simultaneously goed deep into slope surface soil layer, the sheet metal is layed in the slight slope slope surface and vertical slot steel band of excavation, the sheet metal forms the face layer of soil nail wall after being fixedly connected with vertical slot steel band, transverse channel steels band is installed above soil nailing metope layer, the soil nailing bar is threaded through slope surface soil layer, sheet metal, transverse channel steels band, soil nailing bar is connected by locking nut with the face of transverse channel steels band and soil nail wall layer.The present invention improves the degree of safety of support engineering because prestressed application makes slope deformation be controlled.The left and right spreading of face layer can be realized by vertical slot steel band;The spreading up and down of realization face layer is mutually overlapped by sheet metal.And the draining of soil nail wall superficial part is realized by the setting of tapping pipe.

Description

A kind of steel plate and channel steel band combined type face layer soil nail wall
Technical field
The present invention relates to construction ground foundation engineering fields, in particular to a kind of Deep Foundation Pit Supporting Project soil Follow closely wall.
Background technology
Soil nail wall mainly applies the soil slope reinforcements engineerings such as deep foundation pit of construction supporting.Traditional soil nail wall is by being opened with foundation pit The supporting construction that soil nailing group digging layering setting, vertically and horizontally gathering, gunite concrete face layer and the soil body in situ are formed.Pass through The interaction of soil nailing and the soil body forms the soil stabilization zone similar to gravity retaining wall, improves the strong of the soil body in situ Degree, enhances the stability of side slope.The Spraying of reinforcement mat with concrete face layer being arranged in slope surface, it plays the constraint to deforming of the slope Effect.Practice finds that traditional soil nail wall has the disadvantage that in the construction process:Need gunite concrete face at the construction field (site) Layer, this causes construction site environment certain pollution, and face layer is unable to recycling;Soil nail wall can not be applied and be answered in advance Power.
Steel plate of the invention signified and channel steel band combined type face layer soil nail wall (including have been sent out with existing soil nail wall at present Bright assembled soil nail wall) technology is significantly different.Key is that constructing operation is simple, and face layer sheet metal lower part is equipped with vertical channel steel Band, and upper part is equipped with transverse channel steels band, and connected the face of soil nailing bar and transverse channel steels band and soil nail wall layer by locking nut Integrally, the effect of integer support earth-retaining is formed.Meanwhile because prestressed application makes slope deformation be controlled, improving supporting The degree of safety of engineering.The left and right spreading of face layer can be realized by vertical slot steel band;Realization face layer is mutually overlapped by sheet metal Upper and lower spreading.And the draining of soil nail wall superficial part is realized by the setting of tapping pipe.Gunite concrete face layer is replaced with steel face layer, Reduce the pollution to place and surrounding enviroment, and steel surface layer structure can recycle, reduce the waste of material, reduces Cost.
Invention content
The purpose of the present invention is to provide a kind of steel plate and channel steel band combined type face layer soil nailing wall structure and construction method, with The influence improved in traditional soil nail wall (including the assembled soil nail wall invented) work progress to environment is big, troublesome in poeration, The problems such as can not achieve superficial part draining, and prestressing force cannot be applied.
It is as follows to achieve the object of the present invention technical solution:
A kind of steel plate and channel steel band combined type face layer soil nail wall, including vertical slot steel band, transverse channel steels band, soil nailing bar, lock Tight nut, sheet metal, the vertical slot steel band are mated formation in the slight slope slope surface of excavation, and notch direction simultaneously gos deep into slope surface soil layer In, the sheet metal is layed in the slight slope slope surface and vertical slot steel band of excavation, and the sheet metal is fixed with vertical slot steel band to be connected The face layer that soil nail wall is formed after connecing, is equipped with transverse channel steels band, the soil nailing bar is threaded through slope above soil nailing metope layer Soil nailing bar is connected by face soil layer, sheet metal, transverse channel steels band, locking nut with the face of transverse channel steels band and soil nail wall layer.
As a further improvement on the present invention, also it is arranged at intervals with water hole on the transverse channel steels band.
As a further improvement on the present invention, the rod end of the soil nailing bar is provided with the screw thread being connect with locking nut.
As a further improvement on the present invention, the sheet metal includes several monolithic steel plates, the height of monolithic steel plate with The spacing of neighbouring soil nailing bar is equal, and length is 2 times of soil nailing bar level interval.
As a further improvement on the present invention, it is provided with tapping pipe in the soil layer below the soil nailing metope layer.
As a further improvement on the present invention, the tube wall of the tapping pipe is provided with one group of inlet opening.
As a further improvement on the present invention, the vertical slot steel band is arranged in parallel, and the transverse channel steels band is mutual It is arranged in parallel.
As a further improvement on the present invention, it is additionally provided with backing plate between the locking nut and transverse channel steels band.
Beneficial effects of the present invention are as follows:
The face layer sheet metal lower part of the soil nail wall of the present invention is equipped with vertical slot steel band, and upper part is equipped with transverse channel steels band, And soil nailing bar is connected with the face of transverse channel steels band and soil nail wall layer by locking nut, it forms integer support earth-retaining and makees With.Meanwhile because prestressed application makes slope deformation be controlled, improving the degree of safety of support engineering.Pass through vertical channel steel The left and right spreading of face layer can be achieved in band;The spreading up and down of realization face layer is mutually overlapped by sheet metal.And setting by tapping pipe Setting realizes the draining of soil nail wall superficial part.Gunite concrete face layer is replaced with steel face layer, is reduced to place and surrounding enviroment Pollution, and steel surface layer structure can recycle, and reduce the waste of material, reduce cost.
The soil nail wall of the present invention has many advantages, such as easy to operate, easy for construction, non-environmental-pollution, safe and reliable, low cost.
Description of the drawings
Fig. 1 is soil nailing wall structure composition schematic diagram.
Fig. 2 is soil nailing wall structure sectional view.
Fig. 3 is pore-forming slip casting type soil nailing schematic diagram.
Fig. 4 is impacting slip casting soil nailing schematic diagram.
It is marked in figure:1. vertical slot steel band, 2. transverse channel steels bands, 3. soil nailing bars, 4. locking nuts, 5. screws, 6. thin steel Plate, 7. tapping pipes, 8. water holes, 9. backing plates, 10. slope surface soil layers, 11. injecting cement pastes, 12. gunniting holes, 13. angle steel hangnails, 14. gears Plate.
Specific implementation mode
Invention is further described in detail below in conjunction with the accompanying drawings.
A kind of steel plate of the present invention and channel steel band combined type face layer soil nail wall, it includes vertical slot steel band 1, transverse channel steels band 2, soil nailing bar 3, locking nut 4, screw 5, sheet metal 6, tapping pipe 7, water hole 8, backing plate 9 etc..Vertical slot steel band 1 and transverse groove Model 8#, 10#, 12#, 14#A, 14#B, 16#A of steel band 2 etc.;3 reinforcing bar of soil nailing bar preferably uses HRB400, HRB500 screw-thread steel Muscle, bar diameter preferably takeIf (using impacting steel pipe slip casting soil nailing, outer diameter of steel pipes isWall thickness is not preferably less than 3mm), rod end vehicle has the screw thread being connect with locking nut;Locking nut 4 is standard Part, diameter of bore match with soil nailing bar outer diameter;Screw 5 is standard component, a diameter of φ 5mm~φ 10mm of shank of screw;Bao Gang Plate 6 is the steel plate of wall thickness 2mm~5mm, and monolithic steel plain size determines (highly between the upper and lower with soil nailing according to soil nailing design spacing Away from equal, length is 2 times of soil nailing level interval), and φ 100mm or so are drilled with according to the position in soil nailing hole in advance on sheet metal Hole, the medial and lateral of steel plate can apply anti-decaying paint;Tapping pipe 7 is diameter phi 40mm~φ 60mm, the short plastics of length 0.3m~0.5m Pipe, tube wall are provided with the inlet opening of one group of φ 8mm~φ 10mm.Soil nailing wall structure forms as shown in Figure 1, structural profile such as Fig. 2 institutes Show.
The construction method of the present invention is as follows:
1. after foundation pit slope surface excavation, (generic hierarchical excavates to hang down the height and length excavated according to earthwork layer and section Straight height is 1.2m~1.4m, and excavation section by section length is 10m~20m), vertical slot steel band 1 is mated formation in the slight slope slope surface of excavation On.The notch of vertical slot steel band can be used hammering method and be driven into vertical slot steel band in slope surface soil layer 10 (i.e. towards slope surface soil layer 10 The notch of vertical slot steel band gos deep into soil layer).Vertical slot steel band spreading uses welding.
2. sheet metal 6 is laid in the slight slope slope surface and vertical slot steel band of excavation, monolithic steel plain size is according to soil Nail design spacing determines that the medial and lateral of steel plate can apply anti-decaying paint;Sheet metal 6 and vertical slot steel band 1 are fixed with screw 5 With connect the face of soil nail wall (formed layer).It can realize that the left and right spreading of face layer is (adjacent by left and right with screw by vertical slot steel band Sheet metal be fixed on same vertical slot steel band);The spreading up and down that realization face layer is mutually overlapped by sheet metal (will with screw Overlapped up and down, and sheet metal is fixed together).
3. according to design hole position, construction pore-creating slip casting type soil nailing (or impacting slip casting soil nailing), pore-forming slip casting type soil nailing is such as Shown in Fig. 3, impacting slip casting soil nailing (injecting cement paste 11 is injected by gunniting hole 12, and angle steel hangnail 13 is provided with outside soil nailing bar 3, Its bottom end is provided with baffle 14) as shown in Figure 4.Install soil nailing bar 3, wait for 11 intensity of soil nailing injecting cement paste reach design requirement it Afterwards, in the top of soil nailing metope layer installation transverse channel steels band 2, screw hole (eye diameter and soil are set on transverse channel steels band in advance Nail rod diameter matches), so that soil nailing bar is passed through transverse channel steels band, by locking nut 4 by soil nailing bar and transverse channel steels band And the face layer of soil nail wall is connected, and backing plate 9, transverse channel steels band or so are additionally provided between locking nut 4 and transverse channel steels band 2 Spreading uses welding.Locking nut is tightened (between nut and transverse channel steels band by measuring spanner for force moment (or punching jack) Gasket can be added), apply certain prestressing force to soil nailing bar, prestress value control soil nailing axial tension design value 40%~ 70%.According to predeterminated position, tapping pipe 7 is set in the soil layer below the layer of face (per 2m2~4m2A piece tapping pipe is set), make Soil layer ponding close to face layer is flowed out along tapping pipe, is discharged by drain system.Setting is spaced on transverse channel steels band Some water holes 8, make the rainwater above the layer of face flow into slope foot collecting gutter, finally flow into sump and drain.
Embodiment 1:
(1) certain excavation of foundation pit depth 8m excavates soil layer and is followed successively by miscellaneous fill, clay, silt etc. from top to bottom, and design uses Steel plate carries out supporting with channel steel band combined type face layer soil nail wall.Soil nailing between left and right away from and between the upper and lower away from being 1.2m, using pore-forming Slip casting type soil nailing, soil nailing bore diameter are φ 100mm, and soil nailing average length is 9m, and soil nailing bar selects HRB400 spirals, steel The a diameter of φ 30mm of muscle, single soil nailing axial tension design value are 120kN;Vertical slot steel band and transverse channel steels band select 12# Channel steel, sheet metal select the 45# steel steel plates of wall thickness 5mm, monolithic steel plate length to be 2.4m, be highly 1.2m, and according to soil nailing hole Position be drilled with the hole of φ 100mm or so in advance on sheet metal, the medial and lateral of steel plate have applied one layer of anti-decaying paint;Tapping pipe For the short plastic tube of diameter phi 50mm, length 0.5m, tube wall is provided with the inlet opening of one group of φ 10mm.
(2) foundation pit slope surface earthwork layer and section excavates, and stage excavation vertical height is 1.2m, and excavation section by section length is 12m, After testing slope through excavation, vertical slot steel band (it is 1.2m often to save length) is mated formation in the slight slope slope surface of excavation, vertical slot steel band Notch towards slope surface soil layer 10, vertical slot steel band is driven into slope surface soil layer 10 by (the i.e. slot of vertical slot steel band using hammering method Mouth gos deep into about 48mm in soil layer).Vertical slot steel band arrangement spacing is that 1.2m uses altogether the 12m long slight slopes of excavation section by section 11 vertical slot steel bands.
(3) monolithic sheet metal (planar dimension 2.4m × 1.2m) is laid on to the slight slope slope surface and vertical slot steel band of excavation On, sheet metal is fixed and connect (the face layer for forming soil nail wall) with vertical slot steel band with φ 8mm screws (standard component), and The adjacent sheet metal in left and right is fixed on same vertical slot steel band with φ 8mm screws, to realize the left and right spreading of face layer.For The 12m long slight slopes of excavation section by section are connected using 5 blocks of sheet metals with 11 vertical slot steel bands altogether.
(4) according to design hole position, construction pore-creating slip casting type soil nailing installs soil nailing bar, and rod end vehicle has to be connected with locking nut The screw thread connect after waiting for that soil nailing injecting cement paste intensity reaches design requirement, installs transverse channel steels band, in advance in the top of soil nailing metope layer The screw hole of one φ 35mm is first set on transverse channel steels band at interval of 1.2m, reinforcing bar soil nailing bar is enable to pass through transverse channel steels Soil nailing bar is connected by band by locking nut (nut internal diameter is φ 30mm) with the face of transverse channel steels band and soil nail wall layer, Single-unit transverse channel steels strip length is 2.4m, for the 12m long slight slopes of excavation section by section, uses 5 section vertical slot steel bands, transverse groove altogether Steel band or so spreading uses welding.Locking nut (nut and transverse groove are tightened by measuring spanner for force moment (or punching jack) The gasket that aperture is φ 35mm, thickness 15mm or so can be added between steel band), apply certain prestressing force to soil nailing bar, answers in advance Force value is controlled in 60kN.
(5) according to predeterminated position, tapping pipe is set in the soil layer below the layer of face (per 2.8m2Piece sluicing of setting Pipe), so that the soil layer ponding close to face layer is flowed out along tapping pipe, is discharged by drain system.Between on transverse channel steels band Every the water hole (opening this hole on channel airfoil plate) of 1.2m setting φ 20mm, the rainwater above the layer of face is made to flow into slope foot collecting gutter In, it finally flows into sump and drains.
(6) after the soil nail wall that top has been constructed plays support action, continue downward layer and section and cut the earth, slope is tested through excavating Later, by welding spreading vertical slot steel band, and the sheet metal being laid in time in excavation face, it is thin that lower layer's sheet metal gos deep into upper layer The sheet metal of upper and lower layer, is then fixed up with φ 8mm screws (standard component) by 20mm or so inside steel plate, that is, is relied on thin The spreading up and down of the mutual overlap joint realization face layer of steel plate.
Through Site Detection, steel plate used by the foundation pit and the layer soil nail wall deformation of channel steel band combined type face are small, and wall top is horizontal Deformation values are not above 15mm, and ground settlement is less than 10mm, and bottom of foundation ditch does not occur to swell phenomenon, and slope surface face layer steel plate does not have There are phenomena such as apparent deformation and blow-up, engineering cost to reduce by 25% or so than traditional soil nail wall (gunite concrete face layer), And face layer steel plate and channel steel band realize recycling.
Embodiment 2:
(1) certain excavation of foundation pit depth 6m excavates soil layer and is followed successively by miscellaneous fill, Muddy Bottoms silty clay, silty from top to bottom Clay etc., design carry out supporting using steel plate and channel steel band combined type face layer soil nail wall.Soil nailing between left and right away from and between the upper and lower away from equal For 1.3m, using impacting steel pipe slip casting soil nailing, outer diameter of steel pipes isWall thickness 3.5mm, soil nailing average length is 10m, single Root soil nailing axial tension design value is 90kN;Vertical slot steel band and transverse channel steels band select 10# channel steels, sheet metal to select wall thickness The 45# steel steel plates of 3mm, monolithic steel plate length be 2.6m, be highly 1.3m, and according to the position in soil nailing hole on sheet metal in advance It is drilled with the hole of φ 90mm or so, to ensure that steel tube for soil-nail bar passes through, the medial and lateral of steel plate have applied one layer of anti-decaying paint;It lets out Water pipe is the short plastic tube of diameter phi 40mm, length 0.3m, and tube wall is provided with the inlet opening of one group of φ 8mm.
(2) foundation pit slope surface earthwork layer and section excavates, and stage excavation vertical height is 1.3m, and excavation section by section length is 10.4m after testing slope through excavation, vertical slot steel band (it is 1.3m often to save length) is mated formation in the slight slope slope surface of excavation, vertically Vertical slot steel band is driven into slope surface soil layer towards slope surface soil layer, using hammering method (i.e. vertical slot steel band by the notch of channel steel band Notch gos deep into about 43mm in soil layer).Vertical slot steel band arranges that spacing is 1.3m, for the 10.4m long slight slopes of excavation section by section, altogether Use 9 vertical slot steel bands.
(3) monolithic sheet metal (planar dimension 2.6m × 1.3m) is laid on to the slight slope slope surface and vertical slot steel band of excavation On, sheet metal is fixed and connect (the face layer for forming soil nail wall) with vertical slot steel band with φ 6mm screws (standard component), and The adjacent sheet metal in left and right is fixed on same vertical slot steel band with φ 6mm screws, to realize the left and right spreading of face layer.For The 10.4m long slight slopes of excavation section by section are connected using 4 blocks of sheet metals with 9 vertical slot steel bands altogether.
(4) according to design hole position, impacting steel pipe slip casting soil nailing of constructing installs soil nailing bar, rod end vehicle has and locking screw After waiting for that soil nailing injecting cement paste intensity reaches design requirement, transverse channel steels are installed in the top of soil nailing metope layer for the screw thread of mother's connection The screw hole of a φ 50mm is arranged in band on transverse channel steels band at interval of 1.3m in advance, and steel tube for soil-nail bar is enable to pass through laterally Channel steel band is connected the face of steel tube for soil-nail bar and transverse channel steels band and soil nail wall layer by locking nut (nut internal diameter is φ 48mm) Integrally, single-unit transverse channel steels strip length is 2.6m, for the 10.4m long slight slopes of excavation section by section, uses the 4 vertical channel steels of section altogether Band, transverse channel steels band or so spreading use welding.Locking nut (nut is tightened by measuring spanner for force moment (or punching jack) The gasket that aperture is φ 50mm, thickness 15mm or so can be added between transverse channel steels band), steel tube for soil-nail bar is applied centainly Prestressing force, prestress value are controlled in 50kN.
(5) according to predeterminated position, tapping pipe is set in the soil layer below the layer of face (per 3.4m2Piece sluicing of setting Pipe), so that the soil layer ponding close to face layer is flowed out along tapping pipe, is discharged by drain system.Between on transverse channel steels band Every the water hole (opening this hole on channel airfoil plate) of 1.3m setting φ 18mm, the rainwater above the layer of face is made to flow into slope foot collecting gutter In, it finally flows into sump and drains.
(6) after the soil nail wall that top has been constructed plays support action, continue downward layer and section and cut the earth, slope is tested through excavating Later, by welding spreading vertical slot steel band, and the sheet metal being laid in time in excavation face, it is thin that lower layer's sheet metal gos deep into upper layer The sheet metal of upper and lower layer, is then fixed up with φ 6mm screws (standard component) by 20mm or so inside steel plate, that is, is relied on thin The spreading up and down of the mutual overlap joint realization face layer of steel plate.
Through Site Detection, steel plate used by the foundation pit and the layer soil nail wall deformation of channel steel band combined type face are small, and wall top is horizontal Deformation values are not above 13mm, and ground settlement is less than 8mm, and bottom of foundation ditch does not occur to swell phenomenon, and slope surface face layer steel plate does not have There are phenomena such as apparent deformation and blow-up, engineering cost to reduce by 28% or so than traditional soil nail wall (gunite concrete face layer), And face layer steel plate and channel steel band realize recycling.
In conclusion a kind of steel plate of the present invention and channel steel band combined type face layer soil nail wall, are mainly used for deep foundation pit of construction branch The geotechnical engineerings such as shield, soil slope reinforcement field.It is by groups such as sheet metal, channel steel band, locking nut, soil nailing bar, tapping pipes At.After foundation pit slope surface excavation, according to earthwork layer and section excavation height and length, sheet metal is laid on slight slope and vertical On channel steel band, it is used in combination screw to fix sheet metal with vertical slot steel band and connect (the face layer for forming soil nail wall), then applies Work pore-forming slip casting type soil nailing (or impacting slip casting soil nailing), after waiting for that soil nailing injecting cement paste intensity reaches design requirement, in sheet metal Top installation transverse channel steels band (is arranged screw hole on transverse channel steels band in advance, soil nailing bar is enable to pass through;And it is spaced setting Water hole makes the rainwater above the layer of face flow into slope foot collecting gutter), by locking nut by soil nailing bar and transverse channel steels band and soil The face layer for following closely wall is connected, and can apply certain prestressing force to soil nailing bar, the soil being finally set to tapping pipe below the layer of face In layer.
The steel plate and channel steel band combined type face layer construction of soil-nailed wall are easy to operate, because prestressed application makes slope deformation obtain With control, the degree of safety of support engineering is improved.Gunite concrete face layer is replaced with steel face layer, is reduced to place and periphery The pollution of environment, and steel surface layer structure can recycle, and reduce the waste of material, reduce cost.
Embodiment described above is merely a preferred embodiment of the present invention, and is not intended to restrict the invention, for ability For the technical staff in domain, the invention may be variously modified and varied.It is all under the guidance of the present invention, made by change and change Into etc., it should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of steel plate and channel steel band combined type face layer soil nail wall, it is characterised in that:Including vertical slot steel band (1), transverse channel steels Band (2), soil nailing bar (3), locking nut (4), sheet metal (6), the vertical slot steel band (1) are mated formation in the slight slope slope surface of excavation On, notch direction is simultaneously goed deep into slope surface soil layer (10), and the sheet metal (6) is layed in the slight slope slope surface of excavation and vertical channel steel On band (1), the sheet metal (6) forms the face layer of soil nail wall after being fixedly connected with vertical slot steel band (1), in soil nailing metope layer Top is equipped with transverse channel steels band (2), and the soil nailing bar (3) is threaded through slope surface soil layer (10), sheet metal (6), transverse channel steels Soil nailing bar (3) is connected by band (2), locking nut (4) with the face of transverse channel steels band (2) and soil nail wall layer.
2. a kind of steel plate according to claim 1 and channel steel band combined type face layer soil nail wall, it is characterised in that:The transverse direction Water hole (8) is also arranged at intervals on channel steel band (2).
3. a kind of steel plate according to claim 1 and channel steel band combined type face layer soil nail wall, it is characterised in that:The soil nailing The rod end of bar (3) is provided with the screw thread being connect with locking nut (4).
4. a kind of steel plate according to claim 1 and channel steel band combined type face layer soil nail wall, it is characterised in that:The thin steel Plate (6) includes several monolithic steel plates, and the height of monolithic steel plate is equal with the neighbouring spacing of soil nailing bar (3), and length is soil 2 times of nail rod (3) level interval.
5. a kind of steel plate according to claim 1 and channel steel band combined type face layer soil nail wall, it is characterised in that:The soil nailing Tapping pipe (7) is provided in soil layer below metope layer.
6. a kind of steel plate according to claim 5 and channel steel band combined type face layer soil nail wall, it is characterised in that:The sluicing The tube wall of pipe (7) is provided with one group of inlet opening.
7. a kind of steel plate according to claim 1 and channel steel band combined type face layer soil nail wall, it is characterised in that:It is described vertical Channel steel band (1) is arranged in parallel, and the transverse channel steels band (2) is arranged in parallel.
8. a kind of steel plate according to claim 1 and channel steel band combined type face layer soil nail wall, it is characterised in that:The locking Backing plate (9) is additionally provided between nut (4) and transverse channel steels band (2).
CN201810586876.7A 2018-06-08 2018-06-08 A kind of steel plate and channel steel band combined type face layer soil nail wall Pending CN108677941A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111287198A (en) * 2020-03-18 2020-06-16 福建工程学院 Supporting structure of soft soil foundation pit and construction method thereof

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