CN106088097A - The construction method of delivering concrete and fog chute device under gentle slope and abrupt slope - Google Patents
The construction method of delivering concrete and fog chute device under gentle slope and abrupt slope Download PDFInfo
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- CN106088097A CN106088097A CN201610529745.6A CN201610529745A CN106088097A CN 106088097 A CN106088097 A CN 106088097A CN 201610529745 A CN201610529745 A CN 201610529745A CN 106088097 A CN106088097 A CN 106088097A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- General Life Sciences & Earth Sciences (AREA)
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses construction method and the fog chute device of a kind of delivering concrete under gentle slope and abrupt slope, 3 60 6 meters of long straight tubes of joint become elephant trunk by Flange joint, axial flow blower is installed on the first segment straight tube of elephant trunk top, each joint straight tube is provided with fog generator；Flange joint bend pipe is passed through in first segment straight tube upper end, elephant trunk top, and hopper discharging opening slips straight tube under connecting, under slip straight tube and insert in bend pipe；Hopper frame is located on hopper base, and hopper base arranges water tank, draws water pipe from water tank, and water pipe is connected one by one with fog generator；Elephant trunk tail end final section straight tube is connected with tremie pipe one end by flange, a hanger it is welded with on tremie pipe outer layer pipe, cloth casing pipe sleeve on tremie pipe, present device small investment, operating cost are low, cost saving, durable, failure rate is low, the saving duration.
Description
Technical field
The invention belongs to the realm of building construction, relate to construction method and the fog of delivering concrete under gentle slope and abrupt slope
Chute device.Particularly box culvert, channel, inverted-siphon, water-supply-pipe during the field work such as water conservancy, electric power, mine, agricultural irrigation
The basis of concrete structures under the slopes such as road, underplate concrete, the pouring of short concrete structures.Equipment investment is few, operation
Expense is low, cost saving, durable, failure rate is low, the saving duration.
Background technology
At present when the construction industries such as water conservancy, electric power, mine pour basis and structures concrete under heavy grade, because of
The gradient excessive (needs of stability of slope), it is impossible to directly repair the roads (or expense is the biggest), to pouring location, water conservancy industry is generally adopted
The method that or neighbouring method power industry lower with hole of repairing the roads then uses elephant trunk.When using the method repaired the roads, investment is significantly
Improve, the most feasible.Elephant trunk method because inner-walls of duct need slip send before moistening, slip and send the rear mortar of time length to exist
The solidification that the solidification of above inner-walls of duct and left and right or temperature cause time higher causes slipping send fault, simultaneously as concrete is from stirring
It is longer to mix the time between sending of slipping, cause concrete slump loss exceeded specification regulation through time slump-loss value.
Also have pump truck pumping, the method put in storage of material distributing machine cloth of using, but pumping method need to repair the roads, simultaneously need to concrete according to
The gel material contents such as the specification of pumping carries out mix Design, cement must reach 300kg/m3Above, add
Construction investment, simultaneous pumping concrete pumping must strengthen water-cement ratio smoothly, cause the loss that concrete strength is bigger, Er Qienai
Property is poor for a long time.The investment of material distributing machine method is relatively big and the most inapplicable when remote.Now use the method directly put in storage of chute
Feasible the most most economical, but elephant trunk is normally used at present is steel pipe, and easily abrasion, heaviness are not easy displacement, discharging opening is fixed not
It is beneficial to cloth, and water-wet pipeline must be used before using, now easily be spread to pour on face by eaves gutter, if earth foundation is just
Base surface can be caused defective.And steel pipe necessarily be in a kind of straight line angle, installation accuracy requires the highest, is not the most to produce
Raw plugging produces isolation exactly.When producing concrete disintegration, the slump of concrete can only be adjusted, and from the linearity of steel pipe
Adjust with in angle, bother very much.
Summary of the invention
Present invention aims to above technical deficiency, it is provided that a kind of delivering concrete under the gentle slope and abrupt slope
Construction method and fog chute device.Equipment investment is few, operating cost is low, cost saving, durable, failure rate is low, saving
Duration.
For achieving the above object, adopt the following technical scheme that
A kind of fog chute device of delivering concrete under gentle slope and abrupt slope, including hopper, under slip straight tube, bend pipe, straight tube,
Tremie pipe, it is characterised in that: 3-60 JIEMI length (nominal diameter DN125mm-DN350mm) straight tube, become elephant trunk by Flange joint,
It is fitted with leakproof rubber cushion between flange, elephant trunk top first segment straight tube is provided with axial flow blower, each joint straight tube is provided with
Fog generator；
Flange joint bend pipe is passed through in first segment straight tube upper end, elephant trunk top, and bend pipe diameter is identical with straight tube, bent arc radius R300mm-
R2000mm, arc length 400mm-3000mm；
Hopper discharging opening slips straight tube under connecting, under slip straight tube nominal diameter DN100mm-DN300mm, length 500mm-2000mm,
Under slip straight tube horizontal sextant angle 60 degree-85 degree, under slip straight tube and insert in bend pipe；Hopper frame is located on hopper base, on hopper base
Arranging water tank, draw water pipe from water tank, water pipe is connected one by one with fog generator；
Elephant trunk tail end final section straight tube is connected with tremie pipe one end by flange, and tremie pipe is plastic-steel products compound tube, internal layer
For PE or PP plastics, outer layer is steel, and tremie pipe inner layer plastic tube nominal diameter is identical with straight tube, outer layer pipe roll size with
Inner layer plastic tube external diameter interference fit, tremie pipe outer layer pipe is welded with a hanger, cloth casing pipe sleeve on tremie pipe, cloth
Sleeve pipe is steel pipe, nominal diameter DN150mm-DN400mm, length 3-9 rice, and cloth sleeve pipe has width 15mm-30mm vertically
Groove, length 2.8-8.8 rice.
A kind of construction method of delivering concrete under gentle slope and abrupt slope, the steps include:
A, making elephant trunk: by good to the plastic tube purchased or steel pipe melting welding flange, polish pipe inside weld；Wherein for elephant trunk top
First segment straight tube on be welded and be welded for connecting fog generator on the arm of connecting shaft flow fan, each joint straight tube
Arm；
B, squeeze into earth anchor: on the transversal line slope arranging elephant trunk, squeeze into angle steel on road, use as earth anchor；
C, installation hawser: flexible steel wire on the upper flange bottom set need first segment elephant trunk straight tube to be mounted, hawser is solid
It is scheduled on earth anchor.
D, install elephant trunk: according to the slope excavating gradient (1:0.5；1:1；1:1.5；1:2 or the reality between the ratio of above-mentioned slope
Slope, border than), the transversal line need casting concrete prolongs domatic layout plastic tube or steel pipe (or plastic tube and steel is installed
Pipe mixes, and is i.e. needing to adjust the local layout plastic tube of conduit slope), use Flange joint between pipeline, join between flange
Dress leakproof rubber cushion；
E, installation supporting trolley: longer in side slope, when being disposed with packway in the middle part of slope, good and sound supporting trolley on packway；
F, excavation hopper mounting platform: the top elevation at elephant trunk top first segment straight tube digs the platform of 1.25m*1.25m, platform
On hopper base is set；
G, installation bend pipe: install bend pipe in the first segment straight tube upper end on elephant trunk top；
H, install hopper and under slip straight tube: hopper is arranged on hopper base, and hopper discharging opening slips straight tube under connecting, under slip straight tube
Horizontal sextant angle 75 degree-85 degree, under slip straight tube and insert in bend pipe, and adjust the height of hopper at 1.5m-3m；
I, installation water tank: water tank is installed on hopper base；
J, installation tremie pipe and cloth sleeve pipe: elephant trunk tail end final section straight tube is connected with tremie pipe one end by flange, cloth
Casing pipe sleeve is on tremie pipe, and the hanger on tremie pipe is connected with the electric block on walking door frame by suspension hook, by walking door
Mobile and the lifting moving tremie pipe of electric block before and after frame, and by the distance of the extension and contraction control cloth of cloth sleeve pipe；
K, installation fog generator: fog generator is installed on the arm welded in advance on straight tube, draws water pipe, water from water tank
Pipe is connected one by one with fog generator；
L, installation axial flow blower: axial flow blower is installed on the arm that elephant trunk top first segment straight tube welds in advance；
M, installation cable: on fog generator and axial flow blower, load onto cable；
N, examination are slipped: examination is slipped employing plan and slipped the rubber cement of the mix Design parameter preparation sent (without being sand during admixture
Slurry), before examination is slipped, open fog generator and axial flow blower, allow fog be full of pipeline, and keep moisture state；Moisten at pipeline
Afterwards, the rubber cement prepared is carried out examination and slips (when examination is slipped can closing axle flow fan)；
O, adjustment: the gradient is excessively slow slip motionless or plugging time, first adjust the linearity of pipeline, make pipeline keep straight line, then under adjusting
Slip the vertical angle of straight tube, adjust the height of hopper and bend pipe top simultaneously, or the first segment upper end of elephant trunk straight tube is lifted
Height, improve material initial velocity, it is simple under slip；When material produces isolation, the middle part of padded elephant trunk, middle and lower part, or the steepest in the gradient
Time, pipeline can be put into S molded line, or to slip the vertical angle of straight tube 2 under adjusting be 30 degree of-60 degree of horizontal sextant angle.
It is 1:2-1:0.5(21.80 that described construction method is applicable to the gradient0-63.430).
Described construction method is applicable to length of grade 50m-350m.
Compared with prior art beneficial effects of the present invention is as follows:
1, elephant trunk uses fog long-term wet channels inwall, reduces the frictional resistance slipped under material, reached less than 300
The effect of delivering concrete under slope, overcoming directly to add water simultaneously compensates the drawback of slump-loss；
2, elephant trunk uses plastic tube (PE, PP pipe etc.) or plastic tube to be combined with steel pipe, can be arranged to slight S type during abrupt slope
Pipe, the problem of aggregate segregation when solving abrupt slope, lower end can promote and swing simultaneously, has both solved reduction discharging section thing
The problem of material speed, also achieves cloth voluntarily, and solving elephant trunk can not the problem of cloth；
3, construct the intermission, in 10h, be not required to wash pipe, need not both alleviate labor intensity with water profit pipe, also solved base during beginning
The problem that can not there be water in plinth face；
4, trucd mixer can directly under expect hopper, the height of hopper and bend pipe upper port can be from Row sum-equal matrix, it is to avoid road surface
Injustice causes the problem that aggregate bin is higher than trucd mixer discharging opening；
5, during gentle slope, directly place digging machine in side slope upper shed excavates out a chain-wales, hopper and water tank, the most just
Just, it is not necessary to when gentle slope fill or make discharging platform, the problem improving initial velocity when solving gentle slope；
6, by the adjustment in step, cover 1:2-1:0.5(21.800-63.430) side slope in the case of elephant trunk concrete
Conveying scope, have also been enlarged the range of elephant trunk technology；
7, when using plastic tube, overall weight is light, and pipeline manually i.e. adjustable and movement on slope, the water consumption of fog device is the most very
Little, will not be limited by field condition.
8, supporting trolley track uses channel-section steel to make, it is simple to manually move.
9, abrupt slope slip at present straight tube tilt 700-850, material againsts tube wall when falling immediately, and smooths along bend pipe
Flow forward, it is to avoid fall behind the bounce-back segregation phenomenon that excessive velocities causes under straight line.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram
Wherein: under 1-hopper, 2-, slip straight tube, 3-bend pipe, 4-flange, 5-axial flow blower, 6-straight tube, 7-fog generator, 8-is even
Connect steel pipe, 9-water tank, 10-water pipe, 11-supporting trolley, 12-hanger, 13-tremie pipe, 14-cloth sleeve pipe, 15-electric block,
16-mobile roof support.
Detailed description of the invention
A kind of fog chute device of delivering concrete under gentle slope and abrupt slope, including hopper 1, under slip straight tube 2, bend pipe
3, straight tube 6, tremie pipe 13, it is characterised in that: 3-60 saves 6 meters long (nominal diameter DN125mm-DN350mm) straight tubes 6, passes through method
Orchid connects into elephant trunk, is fitted with leakproof rubber cushion between flange, and elephant trunk top first segment straight tube 6 is provided with axial flow blower 5, each
On joint straight tube 6, fog generator 7 is installed；
Flange joint bend pipe 3 is passed through in first segment straight tube 6 upper end, elephant trunk top, and bend pipe 3 diameter is identical with straight tube 6, bent arc radius
R300mm-R2000mm, arc length 400mm-3000mm；
Hopper 1 discharging opening slips straight tube 2 under connecting, under slip straight tube 2 nominal diameter DN100mm-DN300mm, length 500mm-
2000mm, under slip straight tube 2 horizontal sextant angle 60 degree-85 degree, under slip straight tube 2 and insert in bend pipe 3；Hopper 1 is erected on hopper base,
Arranging water tank 9 on hopper base, draw water pipe 10 from water tank 9, water pipe 10 is connected one by one with fog generator 7；
Elephant trunk tail end final section straight tube 6 is connected with tremie pipe 13 one end by flange, and tremie pipe 13 is plastic-steel products compound tube,
Internal layer is PE or PP plastics, and outer layer is steel, and tremie pipe 13 inner layer plastic tube nominal diameter is identical with straight tube 6, and outer layer pipe is rolled up
Size processed and inner layer plastic tube external diameter interference fit, tremie pipe 13 outer layer pipe is welded with a hanger 12, and cloth sleeve pipe 14 overlaps
On tremie pipe 13, cloth sleeve pipe 14 is steel pipe, nominal diameter DN150mm-DN400mm, length 3-9 rice, cloth sleeve pipe 14 edge
Axially have width 15mm-30mm groove, length 2.8-8.8 rice.
A kind of construction method of delivering concrete under gentle slope and abrupt slope, the steps include:
A, making elephant trunk: by good to the plastic tube purchased or steel pipe melting welding flange, polish pipe inside weld；Wherein for elephant trunk top
First segment straight tube 6 on be welded be welded on the arm of connecting shaft flow fan 5, each joint straight tube 6 for connect fog occur
The arm of device；
B, squeeze into earth anchor: on the transversal line slope arranging elephant trunk, squeeze into angle steel on road, use as earth anchor；
C, installation hawser: flexible steel wire on the upper flange bottom set need first segment elephant trunk straight tube to be mounted, hawser is solid
It is scheduled on earth anchor.
D, install elephant trunk: according to the slope excavating gradient (1:0.5；1:1；1:1.5；1:2 or the reality between the ratio of above-mentioned slope
Slope, border than), the transversal line need casting concrete prolongs domatic layout plastic tube or steel pipe (or plastic tube and steel is installed
Pipe mixes, and is i.e. needing to adjust the local layout plastic tube of conduit slope), use Flange joint between pipeline, join between flange
Dress leakproof rubber cushion；
E, installation supporting trolley 11: longer in side slope, when being disposed with packway in the middle part of slope, good and sound supporting trolley 11 on packway；
F, excavation hopper mounting platform: the top elevation at elephant trunk top first segment straight tube 6 digs the platform of 1.25m*1.25m, flat
Hopper base is set on platform；
G, installation bend pipe 3: install bend pipe in first segment straight tube 6 upper end on elephant trunk top；
H, install hopper 1 and under slip straight tube 2: hopper 1 is arranged on hopper base, and hopper 1 discharging opening slips straight tube 2 under connecting, under
Slip straight tube 2 horizontal sextant angle 75 degree-85 degree, under slip straight tube 2 and insert in bend pipe 3, and adjust the height of hopper 1 at 1.5m-3m；
I, installation water tank 10: water tank 10 is installed on hopper base；
J, installation tremie pipe 13 and cloth sleeve pipe 14: elephant trunk tail end final section straight tube 6 is by flange with tremie pipe 13 one end even
Connecing, cloth sleeve pipe 14 is enclosed within tremie pipe 13, and the hanger 12 on tremie pipe 13 is by suspension hook and the electronic calabash on walking door frame 16
Reed 15 connects, by the mobile and lifting moving tremie pipe 13 of electric block 15 before and after walking door frame 16, and by cloth set
The distance of the extension and contraction control cloth of pipe 14；
K, installation fog generator 7: fog generator 7 is installed on the arm welded in advance on straight tube 6, draws water from water tank 9
Pipe 10, water pipe 10 is connected one by one with fog generator 7；
L, installation axial flow blower 5: axial flow blower is installed on the arm that elephant trunk top first segment straight tube 6 welds in advance；
M, installation cable: on fog generator 7 and axial flow blower 5, load onto cable；
N, examination are slipped: examination is slipped employing plan and slipped the rubber cement of the mix Design parameter preparation sent (without being sand during admixture
Slurry), before examination is slipped, open fog generator and axial flow blower, allow fog be full of pipeline, and keep moisture state；Moisten at pipeline
Afterwards, the rubber cement prepared is carried out examination and slips (when examination is slipped can closing axle flow fan)；
O, adjustment: the gradient is excessively slow slip motionless or plugging time, first adjust the linearity of pipeline, make pipeline keep straight line, then under adjusting
Slip the vertical angle of straight tube 2, adjust the height of hopper 1 and bend pipe 3 top simultaneously, or by the first segment upper end of elephant trunk straight tube 6
Portion raises, improve material initial velocity, it is simple under slip；When material produces isolation, the middle part of padded elephant trunk, middle and lower part, or in the gradient
Time too steep, pipeline can be put into S molded line, or to slip the vertical angle of straight tube 2 under adjusting be 30 degree of-60 degree of horizontal sextant angle.
It is 1:2-1:0.5(21.80 that described construction method is applicable to the gradient0-63.430).
Described construction method is applicable to length of grade 50m-350m.
Claims (4)
1. a fog chute device for delivering concrete under gentle slope and abrupt slope, including hopper (1), under slip straight tube (2), curved
Pipe (3), straight tube (6), tremie pipe (13), it is characterised in that: 3-60 saves 6 meters long, the straight tube of nominal diameter DN125mm-DN350mm
(6) become elephant trunk by Flange joint, be fitted with leakproof rubber cushion between flange, elephant trunk top first segment straight tube (6) is provided with axle
Flow fan (5), each joint straight tube (6) is provided with fog generator (7)；
Flange joint bend pipe (3) is passed through in first segment straight tube (6) upper end, elephant trunk top, and bend pipe (3) diameter is identical with straight tube (6), curved
Arc radius R300mm-R2000mm, arc length 400mm-3000mm；
Hopper (1) discharging opening slips straight tube (2) under connecting, under slip straight tube (2) nominal diameter DN100mm-DN300mm, length
500mm-2000mm, under slip straight tube (2) horizontal sextant angle 60 degree-85 degree, under slip straight tube (2) and insert in bend pipe (3)；Hopper (1) frame
Being located on hopper base, hopper base arranges water tank (9), draw water pipe (10) from water tank (9), water pipe (10) occurs with fog
Device (7) connects one by one；
Elephant trunk tail end final section straight tube (6) is connected with tremie pipe (13) one end by flange, and tremie pipe (13) is plastic-steel products
Compound tube, internal layer is PE or PP plastics, and outer layer is steel, and tremie pipe (13) inner layer plastic tube nominal diameter is identical with straight tube (6),
Outer layer pipe rolls size and inner layer plastic tube external diameter interference fit, and tremie pipe (13) outer layer pipe is welded with a hanger
(12), cloth sleeve pipe (14) is enclosed within tremie pipe (13), and cloth sleeve pipe (14) is steel pipe, nominal diameter DN150mm-DN400mm,
Length 3-9 rice, cloth sleeve pipe (14) has width 15mm-30mm groove, length 2.8-8.8 rice vertically.
2. a construction method for delivering concrete under gentle slope and abrupt slope, the steps include:
A, making elephant trunk: by good to the plastic tube purchased or steel pipe melting welding flange, polish pipe inside weld；Wherein for elephant trunk top
First segment straight tube (6) on be welded and be welded for connecting mist on the arm of connecting shaft flow fan (5), each joint straight tube (6)
The arm of gas generator；
B, squeeze into earth anchor: on the transversal line slope arranging elephant trunk, squeeze into angle steel on road, use as earth anchor；
C, installation hawser: flexible steel wire on the upper flange bottom set need first segment elephant trunk straight tube to be mounted, hawser is solid
It is scheduled on earth anchor；
D, install elephant trunk: according to the slope excavating gradient (1:0.5；1:1；1:1.5；1:2 or the actual slope between the ratio of above-mentioned slope
Than), the transversal line need casting concrete prolongs domatic layout and plastic tube or steel pipe is installed (or plastic tube mixes with steel pipe
Close, i.e. needing to adjust the local layout plastic tube of conduit slope), use Flange joint between pipeline, equipped anti-between flange
Leakage rubber cushion；
E, installation supporting trolley (11): longer in side slope, when being disposed with packway in the middle part of slope, good and sound supporting trolley on packway
(11)；
F, excavation hopper mounting platform: the top elevation on elephant trunk top first segment straight tube (6) digs the platform of 1.25m*1.25m,
Hopper base is set on platform；
G, installation bend pipe (3): install bend pipe in first segment straight tube (6) upper end on elephant trunk top；
H, install hopper (1) and under slip straight tube (2): hopper (1) is arranged on hopper base, slips under the connection of hopper (1) discharging opening
Straight tube (2), under slip straight tube (2) horizontal sextant angle 75 degree-85 degree, under slip straight tube (2) and insert in bend pipe (3), and adjust hopper (1)
Height at 1.5m-3m；
I, installation water tank (10): water tank (10) is installed on hopper base；
J, installation tremie pipe (13) and cloth sleeve pipe (14): elephant trunk tail end final section straight tube (6) passes through flange and tremie pipe
(13) one end connects, and cloth sleeve pipe (14) is enclosed within tremie pipe (13), and the hanger (12) on tremie pipe (13) passes through suspension hook and row
Walk the electric block (15) on door frame (16) to connect, by mobile before and after walking door frame (16) and the lifting of electric block (15)
Mobile tremie pipe (13), and by the distance of the extension and contraction control cloth of cloth sleeve pipe (14)；
K, installation fog generator (7): fog generator (7) is installed, from water tank on the arm welded in advance on straight tube (6)
(9) drawing water pipe (10), water pipe (10) is connected one by one with fog generator (7)；
L, installation axial flow blower (5): axial flow blower is installed on the arm that elephant trunk top first segment straight tube (6) is welded in advance；
M, installation cable: on fog generator (7) and axial flow blower (5), load onto cable；
N, examination are slipped: examination is slipped employing plan and slipped the rubber cement of the mix Design parameter preparation sent (without being sand during admixture
Slurry), before examination is slipped, open fog generator and axial flow blower, allow fog be full of pipeline, and keep moisture state；Moisten at pipeline
Afterwards, the rubber cement prepared is carried out examination and slips (when examination is slipped can closing axle flow fan)；
O, adjustment: the gradient is excessively slow slip motionless or plugging time, first adjust the linearity of pipeline, make pipeline keep straight line, then under adjusting
Slip the vertical angle of straight tube (2), adjust the height of hopper (1) and bend pipe (3) top simultaneously, or by the of elephant trunk straight tube (6)
One joint upper end raises, improve material initial velocity, it is simple under slip；When material produces isolation, the middle part of padded elephant trunk, middle and lower part,
Or when the gradient is too steep, pipeline can be put into S molded line, or to slip the vertical angle of straight tube (2) under adjusting be horizontal sextant angle 30
Degree-60 degree.
A kind of construction method of delivering concrete under gentle slope and abrupt slope, it is characterised in that: institute
State construction method being applicable to the gradient is 1:2-1:0.5(21.800-63.430).
A kind of construction method of delivering concrete under gentle slope and abrupt slope, it is characterised in that: institute
State construction method and be applicable to length of grade 50m-350m.
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| CN201610529745.6A CN106088097B (en) | 2016-07-07 | 2016-07-07 | Construction method and fog chute device for delivering concrete under gentle slope and abrupt slope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984577A (en) * | 2019-12-21 | 2020-04-10 | 河南昊锦建设集团有限公司 | Concrete pouring system |
| CN111396676A (en) * | 2020-04-27 | 2020-07-10 | 南京晨光东螺波纹管有限公司 | Displacement compensation device of arc-shaped heat pipe and installation method thereof |
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| CN106088097B (en) | 2018-01-16 |
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