CN115012357A - Construction method of mould bag concrete - Google Patents
Construction method of mould bag concrete Download PDFInfo
- Publication number
- CN115012357A CN115012357A CN202210512692.2A CN202210512692A CN115012357A CN 115012357 A CN115012357 A CN 115012357A CN 202210512692 A CN202210512692 A CN 202210512692A CN 115012357 A CN115012357 A CN 115012357A
- Authority
- CN
- China
- Prior art keywords
- bag
- concrete
- slope
- mold
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000011049 filling Methods 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000009958 sewing Methods 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000001802 infusion Methods 0.000 claims description 18
- 238000009415 formwork Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000004746 geotextile Substances 0.000 claims description 6
- 230000010412 perfusion Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 4
- 230000009172 bursting Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000008569 process Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/106—Temporary dykes
- E02B3/108—Temporary dykes with a filling, e.g. filled by water or sand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/20—Reducing volume of filled material
- B65B1/22—Reducing volume of filled material by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Quality & Reliability (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a mould bag concrete construction method, which comprises the following steps: providing a die bag with a preset size, wherein the die bag is provided with a first pouring port and a second pouring port at intervals along the length direction of the die bag; sewing a plurality of mould bags and then laying the mould bags on the slope surface along a preset direction so that the first filling port is close to the slope bottom and is positioned below the water surface, and the second filling port is close to the slope top; sequentially pouring concrete into the first pouring port and the second pouring port along the direction from the slope bottom to the slope top until the mold bag reaches a preset fullness degree; tamping the mould bag to ensure that the concrete is uniformly filled in the mould bag; and (4) washing the surface of the mold bag until the moisture and air in the mold bag are fully discharged, and then pouring the concrete again until the mold bag is full. The method of the invention fills in sections through the two filling openings, stops filling after filling to the preset fullness, and carries out operations such as tamping, washing and the like on the mould bag, so that concrete can be more uniformly laid in the mould bag, thereby improving the slope protection effect of the mould bag.
Description
Technical Field
The invention relates to the technical field of mould bag concrete construction, in particular to a mould bag concrete construction method.
Background
In the related technology, along with the influence of the normal flood season of the past year, the river bank is continuously scoured by water and eroded, and a plurality of bank sections are difficult to meet the flood control standard requirements in the flood season. The mould bag concrete is comparatively neotype engineering material, and during the construction, the concrete fills in the mould bag through the high-pressure pump, and after it solidifies, forms the platelike bank protection structure that has safeguard function, and satisfies the dyke and consolidate and administer the requirement. However, in the construction process, because the construction is carried out under water, the concrete quality can not reach the standard due to factors such as flowing and bleeding, and the like, thereby leading to poor effect of slope protection.
Disclosure of Invention
The invention mainly aims to provide a mould bag concrete construction method, and aims to solve the problem that the slope protection effect is poor due to the fact that the concrete quality is influenced when concrete is poured underwater in the prior art.
In order to achieve the purpose, the invention provides a construction method of mould bag concrete, which is used for underwater concrete construction;
the method comprises the following steps:
providing a die bag with a preset size, wherein the die bag is provided with a first pouring port and a second pouring port at intervals along the length direction of the die bag;
after being sewn, the mould bags are laid on a slope surface along a preset direction, so that the first filling port is close to the slope bottom and is positioned below the water surface, and the second filling port is close to the slope top;
sequentially pouring concrete into the first pouring port and the second pouring port along the direction from the slope bottom to the slope top until the mold bag reaches a preset fullness degree;
tamping the mould bag to ensure that concrete is uniformly filled in the mould bag;
and washing the surface of the mold bag until the moisture and air in the mold bag are fully discharged, and then pouring concrete again until the mold bag is full.
Preferably, after being sewn, the plurality of mold bags are laid on the slope surface along a preset direction, so that the first filling port is close to the slope bottom and the second filling port is close to the slope top, and the method further comprises the following steps:
the slope surface is pre-leveled by paving a gravel cushion layer, and the bulges and pits of the slope surface are trimmed so that the slope surface is smooth.
Preferably, the step of laying the plurality of mold bags on the slope along a preset direction after sewing the mold bags so that the first filling port is close to the slope bottom and is positioned below the water surface, and the step of laying the second filling port close to the slope top includes:
sewing a plurality of mold pockets in a width direction of the mold pockets;
laying the sewn mold bags on the slope along the extending direction of the ramp;
the upper end of the mould bag is fixed at the top of the slope, and the lower end of the mould bag is fixed at the bottom of the slope and is positioned under the water surface.
Preferably, the mould bag is fixed at the top of the slope through fixing piles, each mould bag is fixed through at least four fixing piles, and the interval between every two adjacent fixing piles is 1-1.5 m.
Preferably, the concrete pouring of the plurality of mold bags from the bottom to the top of the slope sequentially comprises the following specific steps:
extending an infusion tube into the first infusion port for infusion, and plugging the first infusion port when the infusion tube is infused to the height of the first infusion port;
and extending the filling pipe into the second filling port for filling until the mold bag reaches the preset fullness, and suspending filling.
Preferably, the end of the irrigation tube is kept parallel to the ramp after irrigation has begun.
Preferably, when the mould bag is filled, the interval time between the first filling opening being blocked and the second filling opening being extended into the filling pipe for filling is not more than 30min, and the concrete filling speed is controlled to be 10-15 m 3 And h, controlling the perfusion pressure to be 0.2-0.3 Mpa.
Preferably, the mould bag is made of filament woven geotextile made of polyester material, and the density of the polyester material is more than or equal to 500g/m 2 The nominal breaking strength is more than or equal to 50KN/m, the latitudinal breaking strength is more than or equal to 45KN/m, the bursting strength is more than or equal to 4KN, the equivalent aperture is set to be 0.05-0.50 mm, and the vertical permeability coefficient is set to be 1 x 10 -5 ～9.9*10 -2 。
Preferably, the mould bag reserves a margin of ± 3% of transverse shrinkage and a margin of ± 7% of longitudinal shrinkage.
Preferably, the concrete is C25 type concrete, wherein the maximum particle size of the concrete coarse aggregate is less than or equal to 20mm, and the slump is controlled to be more than or equal to 200 mm.
According to the mould bag concrete construction method, the mould bag with the preset size is provided, the first filling opening and the second filling opening are formed in the length direction of the mould bag, and the two filling openings are used for performing segmented concrete filling, so that concrete can be uniformly filled in the mould bag, and the slope protection effect of the concrete mould bag is improved. The two ends of the mold bag are respectively fixed on the top and the bottom of the slope, so that the mold bag can be prevented from being washed away by water flow, and the stability of the mold bag is improved. Fill mouthful and second and fill mouthful along filling in proper order from the slope bottom to the direction of slope top, when filling and predetermineeing the plumpness, pause and fill, carry out the tamping to the mould bag, the concrete in the supplementary mould bag flows to make even filling of concrete inside the mould bag, wash simultaneously the surface of mould bag, until after moisture and air fully discharge in the mould bag, carry out the concrete again and fill. Therefore, the surface of the mold bag is flushed to enable drainage and ventilation on the surface of the mold bag to be smooth, so that internal moisture and air can be smoothly discharged out of the mold bag, and the concrete can be uniformly paved in the mold bag by tamping the mold bag, so that the influence of the concrete on the underwater is reduced, and the effect of concrete slope protection of the mold bag is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a first embodiment of a method for formwork bag concrete construction according to the present invention;
FIG. 2 is a schematic view of the construction of a formwork bag according to a first embodiment of the method for constructing formwork bag concrete of the present invention
FIG. 3 is a schematic flow chart of a method for constructing formwork bag concrete according to a second embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method of constructing formwork concrete according to a third embodiment of the present invention;
fig. 5 is a schematic flow chart of a method for constructing formwork concrete according to a fourth embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
12 | Second filling opening |
| 11 | First filling opening |
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a concrete construction method for a mold bag 10.
Referring to fig. 1 and 2, a schematic flow chart of an embodiment of a concrete construction method of a mold bag 10 according to the present invention is shown, the method includes the following steps:
step S100, providing a mold bag 10 with a preset size, wherein the mold bag 10 is provided with a first filling port 11 and a second filling port 12 at intervals along the length direction of the mold bag 10;
compared with the traditional slope protection mode, the mold bag concrete construction is rapid, simple and convenient, strong in adaptability, strong in integral slope protection performance, good in stability, large in slope protection area, good in appearance quality and the like, is less affected by water, and can be directly constructed underwater.
Through the length direction who follows mould bag 10 setting up first mouth 11 and the second of filling into for mould bag 10 can fill into the concrete through the mouth that fills of difference at the filling in-process, prevents because of leading to the concrete to pile up at same mouth of filling into concrete, prevents that the concrete from distributing unevenly in mould bag 10.
Step S200, sewing a plurality of mould bags 10 and laying the mould bags on a slope surface along a preset direction so that a first filling port 11 is close to the slope bottom and is positioned under the water surface, and a second filling port 12 is close to the slope top;
step S300, sequentially pouring concrete into the first pouring port 11 and the second pouring port 12 along the direction from the slope bottom to the slope top until the mold bag 10 reaches a preset fullness;
step S400, tamping the mould bag 10 to ensure that concrete is uniformly filled in the mould bag 10;
step S500, the surface of the mold bag 10 is washed until the moisture and air in the mold bag 10 are sufficiently discharged, and then concrete is poured again until the mold bag 10 is full.
According to the concrete construction method for the mold bag 10, the mold bag 10 with the preset size is provided, the first filling opening 11 and the second filling opening 12 are formed in the length direction of the mold bag 10, and segmented concrete filling is performed through the two filling openings, so that concrete can be uniformly filled into the mold bag 10, and the slope protection effect of the concrete mold bag 10 is improved. The two ends of the mold bag 10 are respectively fixed on the top and the bottom of the slope, so that the mold bag 10 can be prevented from being washed away by water flow, and the stability of the mold bag 10 is improved. Filling the direction from the slope bottom to the slope top into first mouth 11 and second mouth 12 in proper order, when filling and predetermineeing the plumpness, the pause is filled, carries out the tamping to mould bag 10, and the concrete in the supplementary mould bag 10 flows to make even the filling of concrete inside mould bag 10, wash the surface of mould bag 10 simultaneously, until in the mould bag 10 moisture and the air fully discharge after, carry out the concrete again and fill. Make the hydrophobic on mould bag 10 surface and ventilate smoothly through washing mould bag 10 surface to inside moisture and the discharge mould bag 10 that the air can lead to in the same direction as, tamping mould bag 10 makes concrete can be more even lay in mould bag 10, thereby reduces the concrete and receives the influence under water, improves the effect of mould bag 10 concrete bank protection.
It will be appreciated that before laying the mould bags 10, a survey loft is also required, and that first the positioning boat is parked in the position corresponding to the mould bag 10 to be laid, in the water flow direction and in a position left and right outside the river course of the mould bag 10. According to a design drawing and a customized detailed processing drawing of the mold bag 10, position measurement lofting of the mold bag 10 is carried out, an upper shore side line of the mold bag 10 and a spreading direction line of the mold bag 10 are mainly determined, a river middle side line of the mold bag 10 is determined according to the length of the mold bag 10, when the length of the mold bag 10 is customized, calculation and control are carried out according to the drawing and an actually measured terrain, and the shrinkage rate of the mold bag 10 is considered.
It will of course be readily appreciated that while a logical order is shown in the present embodiment, in some cases, the steps shown or described may be performed in an order different than that shown or described herein. For example, step S400 may be performed after step S300.
Further, referring to fig. 2, in an embodiment, before the step S200, the method further includes the following steps:
step S190: the slope surface is pre-leveled by paving a gravel cushion layer, and the bulges and pits on the slope surface are trimmed so as to smooth the slope surface.
According to the slope of design, domatic gravel bed course that can adopt 300mm thick carries out the finishing to dangerous section bank slope, and the leveling height difference requires within 100mm, adopts to use the long arm to dig the machine as the main, and supplementary manual work cooperation carries out the rubble and lays and domatic flattening, has maintained the back requirement: the slope surface is strictly forbidden to have larger bulges and pits, and the surface of the foundation is smoothly transited. Carry out the flattening in advance to domatic and help mould bag 10 and domatic smoother laminating on domatic to improve mould bag 10 and to domatic nursing effect, can avoid simultaneously mould bag 10 to be damaged by domatic fish tail, improved mould bag 10's life-span.
Referring to fig. 3, in an embodiment, the specific steps of step S200 include:
s210, sewing a plurality of mould bags 10 along the width direction of the mould bags 10;
s220, paving the sewn mold bags 10 on a slope along the extension direction of the slope;
and S230, fixing the upper end of the mold bag 10 at the top of the slope, and fixing the lower end of the mold bag 10 at the bottom of the slope and under the water surface.
Fix mould bag 10 in slope top department through the spud pile, every mould bag 10 is fixed through four at least spud piles, and the interval between the adjacent spud pile is 1 ~ 1.5 m.
When the mould bag 10 is laid, a construction ship is taken as a main part, the auxiliary cooperation is carried out, and the construction and the laying are carried out according to the sequence from upstream to downstream and from bank to river. In order to avoid the condition that the mould bags 10 slide downwards along the slope, fixing piles are arranged at the upper ends of the slope top mould bags 10, the distance between the fixing piles is 1-1.5 m, the fixing piles are arranged by using timber piles or steel pipes, and the number of the fixing piles of each mould bag 10 is not less than 4. After the upper end of the mold bag 10 is fixed, the mold bag 10 is spread and fixed at the upstream side by using one ship, the other ship lays and expands the mold bag 10 at the downstream and the width and length directions, one side of the first filling port 11 and the second filling port 12 faces upwards during expansion, after the laying is finished, an operator places a sand bag at the lower end of the mold bag 10, fixes the lower end of the mold bag 10 through the weight of the sand bag, fixes the mold bag at the bottom of a slope and prevents the mold bag 10 from moving along the water flow direction.
Further, a margin of a preset size needs to be reserved at one end of the connection place of the mold bag 10 and the fixing pile to ensure that the length of the mold bag 10 after the concrete pouring meets a preset standard.
It should be understood that the length of the mold bag 10 is changed along the ramp direction, and according to the section size of the design drawing, when the dangerous section terrain is fan-shaped external expansion and internal turning (abnormal shape), the length of the mold bag 10 between the sections is calculated by adopting a gradual change direct connection method; when the dangerous section tends to be smooth or more regular, the length of the mould bag 10 between the sections is calculated by adopting a rectangular method, after the required length of the mould bag 10 is calculated according to the actual condition, the length of the mould bag 10 is counted and summarized, the mould bag 10 is processed and marked by a manufacturer, and when the mould bag 10 is sewn, the mould bag is sewn in sequence according to the marking sequence.
Referring to fig. 4, in an embodiment, the specific step of step S300 includes:
s310, extending an infusion tube into the first infusion port for infusion, and plugging the first infusion port when the infusion tube is infused to the height of the first infusion port;
and S320, extending the filling pipe into the second filling port for filling until the mold bag reaches the preset fullness, and suspending filling.
Fill the pipe and stretch into mould bag 10 and should keep in predetermineeing the degree of depth, so that the concrete can be even flow direction mould bag 10 in, simultaneously along with the increase of the interior concrete of mould bag 10, the degree of depth of pipe is filled in the synchronous adjustment, the concrete fills when first pouring port 11's height, pause fills, the first mouth 11 that fills of shutoff, and will fill the pipe and insert second pouring port 12 and fill once more, fill the mouth through the difference, make the concrete can more even distribution in mould bag 10, thereby improve the effect of mould bag 10 bank protection.
It needs to be noted that, need wait for the mould bag 10 fully moist back before filling, carry out the concrete again and pour into, can prevent after the mould bag 10 is fully moist that the concrete is filling the in-process, the mould bag 10 absorbs the moisture in the mixture to reduce the concrete slump, cause the mobility not enough, make the concrete caking in mould bag 10, the distribution is inhomogeneous, thereby reduces the bank protection effect of mould bag 10 concrete. Meanwhile, a proper amount of anti-dispersing agent is added into the concrete to prevent the concrete from being separated and deteriorated when encountering water during underwater construction, and the concrete must have good workability, keep good rheological property, good cohesiveness and water retention property to avoid the conditions of layering, bleeding, separation and the like in transportation and pouring.
Further, after the perfusion is started, the end of the perfusion tube is kept parallel to the slope. The end of filling the pipe can make more even distribution of concrete in mould bag 10 with domatic parallel, and better flow to each corner guarantees filling quality to improve the effect of mould bag 10 bank protection.
It should be noted that during the concrete pouring process, it is necessary to arrange the operator to check and eliminate the accumulation of stones and the like near the first pouring port 11 and the second pouring port 12 in time. If stones are piled up at the first filling opening 11 and the second filling opening 12, the resistance of concrete conveying is increased, so that the pressure in the conveying pipe is increased, the filling thickness is increased, and even the reinforcing ribs and the cloth of the mold bag 10 are expanded, transited, stretched and cracked, so that the mold bag 10 is damaged or the performance is reduced. Meanwhile, the operator needs to check the filling degree and compactness of the mold bag 10, so as to suspend filling in time and perform operations such as tamping, flushing and the like.
In one embodiment, when the mould bag 10 is filled, the interval time between the first filling opening being blocked and the second filling opening being filled with the filling pipe extending into the first filling opening is not more than 30min, and the concrete filling speed is controlled to be 10-15 m 3 And h, controlling the perfusion pressure to be 0.2-0.3 Mpa. The interval time of the pause pouring is not more than 30 minutes, so that the concrete poured in the mold bag 10 firstly is prevented from being coagulated or stacked due to too long interval time, the uniformity of the concrete in the mold bag 10 is improved, the pouring speed and the pouring pressure of the concrete are controlled, and the phenomenon that the mold bag 10 bulges or cracks due to overlarge pouring speed and pressure of the concrete is avoided.
In one embodiment, the molding bag 10 is made of filament woven geotextile made of polyester material, and the density of the polyester material is more than or equal to 500g/m 2 The nominal breaking strength is more than or equal to 50KN/m, the latitudinal breaking strength is more than or equal to 45KN/m, the bursting strength is more than or equal to 4KN, the equivalent aperture is set to be 0.05-0.50 mm, and the vertical permeability coefficient is set to be 01*10 -5 ～9.9*10 -2 。
The application of the filament woven geotextile introduces that the geotextile has good mechanical function, good water permeability, corrosion resistance, ageing resistance, isolation, reverse filtration, drainage, protection, stability, reinforcement and other functions, can adapt to uneven base layers, can resist external damage of construction, creep and shrink, and can still keep the original functions under long-term load. The geotextile is woven by the filament yarns made of the polyester materials, and the performance of the polyester materials is limited, so that the performance of the mold bag 10 is further improved, the service life of the mold bag 10 is prolonged, and the stability of the mold bag 10 is improved.
Further, in the process of processing and sewing the cloth of the mold bag 10, the filling shrinkage allowance must be considered to ensure the quality of the mold bag 10 after construction, so that the mold bag 10 reserves a transverse shrinkage allowance of +/-3% and a longitudinal shrinkage allowance of +/-7%. The transverse shrinkage allowance can ensure that after the mould bags 10 are sewn and filled with concrete, the adjacent mould bags 10 cannot be damaged due to the increase of expansion volume, and the longitudinal shrinkage allowance can ensure that after the concrete is filled in the mould bags 10, the mould bags 10 cannot be torn and damaged due to the weight of the concrete, so that the safety of the mould bags 10 is improved and the service life of the mould bags is prolonged.
In one embodiment, the concrete is C25 type concrete, wherein the maximum particle size of the concrete coarse aggregate is less than or equal to 20mm, and the slump is controlled to be more than or equal to 200 mm. Because the concrete pouring process is constructed underwater, the concrete can not be vibrated, and the concrete is mainly compacted by self-flowing, the requirements on the strength, the durability and the workability of the concrete are higher, and the concrete mixing proportion trial preparation and verification must be carried out before the construction. The mix proportion of the verification and approval is adopted, the medium sand is selected as the fine aggregate, the maximum grain size of the coarse aggregate is controlled to be not more than 20mm, the slump is controlled to be not less than 200mm, and the high-strength high-fluidity high-dispersity concrete has good fluidity and good dispersibility.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A construction method of mould bag concrete is characterized in that the method is used for underwater concrete construction;
the method comprises the following steps:
providing a die bag with a preset size, wherein the die bag is provided with a first pouring port and a second pouring port at intervals along the length direction of the die bag;
after being sewn, the mould bags are laid on a slope surface along a preset direction, so that the first filling port is close to the slope bottom and is positioned below the water surface, and the second filling port is close to the slope top;
sequentially pouring concrete into the first pouring port and the second pouring port along the direction from the slope bottom to the slope top until the mold bag reaches a preset fullness degree;
tamping the mould bag to ensure that concrete is uniformly filled in the mould bag;
and washing the surface of the mold bag until the moisture and air in the mold bag are fully discharged, and then pouring concrete again until the mold bag is full.
2. The method for constructing concrete in mold bags according to claim 1, wherein the step of sewing the plurality of mold bags and laying them on the slope surface in a predetermined direction so that the first pouring port is close to the bottom of the slope and the second pouring port is close to the top of the slope further comprises the steps of:
the slope surface is pre-leveled by paving a gravel cushion layer, and the bulges and pits of the slope surface are trimmed so as to smooth the slope surface.
3. The method for constructing the mold bag concrete according to claim 1, wherein the concrete steps of sewing the plurality of mold bags and then laying the mold bags on the slope surface along a preset direction so that the first filling port is close to the bottom of the slope and below the water surface, and the second filling port is close to the top of the slope include:
sewing a plurality of mold pockets in a width direction of the mold pockets;
laying the sewn mold bags on the slope along the extending direction of the ramp;
the upper end of the mould bag is fixed at the top of the slope, and the lower end of the mould bag is fixed at the bottom of the slope and is positioned under the water surface.
4. The method for constructing formwork bag concrete according to claim 3, wherein the formwork bag is fixed at the top of the slope by fixing piles, each formwork bag is fixed by at least four fixing piles, and the interval between adjacent fixing piles is 1-1.5 m.
5. The method for constructing the mold bag concrete according to claim 1, wherein the concrete pouring is sequentially performed on the first pouring port and the second pouring port along the direction from the bottom of the slope to the top of the slope until the mold bag reaches the preset fullness degree comprises the specific steps of:
extending an infusion tube into the first infusion port for infusion, and plugging the first infusion port when the infusion tube is infused to the height of the first infusion port;
and extending the filling pipe into the second filling port for filling until the mold bag reaches the preset fullness, and suspending filling.
6. The method of formwork concrete construction of claim 5, wherein after the pouring is started, the end of the pouring pipe is kept parallel to the sloping surface.
7. The method for constructing concrete in a form bag according to claim 5, wherein the concrete pouring speed is controlled to be 10-15 m when the form bag is poured 3 And h, controlling the perfusion pressure to be 0.2-0.3 Mpa.
8. The method for constructing concrete in mold bags according to claim 1, wherein the mold bags are made of filament woven geotextile made of polyester material, and the density of the polyester material is more than or equal to 500g/m 2 The nominal breaking strength is more than or equal to 50KN/m, the latitudinal breaking strength is more than or equal to 45KN/m, the bursting strength is more than or equal to 4KN, the equivalent aperture is set to be 0.05-0.50 mm, and the vertical permeability coefficient is set to be 1 x 10 -5 ～9.9*10 -2 。
9. The method of constructing concrete in form bags according to claim 1, wherein the form bags reserve a margin of ± 3% of lateral shrinkage and a margin of ± 7% of longitudinal shrinkage.
10. The method for constructing the mold bag concrete according to claim 1, wherein the concrete is C25 type concrete, wherein the maximum particle size of the concrete coarse aggregate is less than or equal to 20mm, and the controlled slump is more than or equal to 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512692.2A CN115012357A (en) | 2022-05-11 | 2022-05-11 | Construction method of mould bag concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210512692.2A CN115012357A (en) | 2022-05-11 | 2022-05-11 | Construction method of mould bag concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115012357A true CN115012357A (en) | 2022-09-06 |
Family
ID=83069348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210512692.2A Pending CN115012357A (en) | 2022-05-11 | 2022-05-11 | Construction method of mould bag concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115012357A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200895A (en) * | 2007-12-05 | 2008-06-18 | 三峡大学 | Method for repairing damage of underwater concrete panel slope protection |
| CN106677128A (en) * | 2016-11-21 | 2017-05-17 | 中交航局第工程有限公司 | Novel die bag water filtering hole sewing machining and constructing method |
| CN210315389U (en) * | 2019-04-29 | 2020-04-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Ecological slope protection of silt solidification is filled to mould bag |
| CN112281847A (en) * | 2020-11-03 | 2021-01-29 | 浙江省围海建设集团股份有限公司 | Mould bag concrete construction system and method |
| CN212714809U (en) * | 2020-07-03 | 2021-03-16 | 无锡申湖织造有限公司 | Slope protection mould bag convenient to fill fast |
| CN113062260A (en) * | 2021-03-29 | 2021-07-02 | 广州粤水建设有限公司 | Film bag laying method |
| CN113389168A (en) * | 2021-06-04 | 2021-09-14 | 上海热湾环境科技有限公司 | Mold bag device for solidified soil dam and using method thereof |
-
2022
- 2022-05-11 CN CN202210512692.2A patent/CN115012357A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200895A (en) * | 2007-12-05 | 2008-06-18 | 三峡大学 | Method for repairing damage of underwater concrete panel slope protection |
| CN106677128A (en) * | 2016-11-21 | 2017-05-17 | 中交航局第工程有限公司 | Novel die bag water filtering hole sewing machining and constructing method |
| CN210315389U (en) * | 2019-04-29 | 2020-04-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Ecological slope protection of silt solidification is filled to mould bag |
| CN212714809U (en) * | 2020-07-03 | 2021-03-16 | 无锡申湖织造有限公司 | Slope protection mould bag convenient to fill fast |
| CN112281847A (en) * | 2020-11-03 | 2021-01-29 | 浙江省围海建设集团股份有限公司 | Mould bag concrete construction system and method |
| CN113062260A (en) * | 2021-03-29 | 2021-07-02 | 广州粤水建设有限公司 | Film bag laying method |
| CN113389168A (en) * | 2021-06-04 | 2021-09-14 | 上海热湾环境科技有限公司 | Mold bag device for solidified soil dam and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4090363A (en) | Dam of earth or rock fill having impervious core | |
| CN103628378B (en) | One is highway widening embankment structure and construction method near water | |
| CN104278608A (en) | Novel highway embankment widened structure and construction method | |
| CN114991078A (en) | Construction method of mould bag concrete | |
| KR101198272B1 (en) | Geotextile Tube Structure for Reservoir and Method for Constructing The Same | |
| WO2024124867A1 (en) | Cofferdam-free reclamation construction method for artificial island | |
| CN114934519B (en) | Optimized pile forming method for drilling and pouring occluding pile in stratum easy to liquefy | |
| CN115012357A (en) | Construction method of mould bag concrete | |
| CN112195874B (en) | High homogeneity dam of dispersion soil | |
| CN113585303A (en) | Seepage-proofing stable cofferdam structure and construction method thereof | |
| JPH09184126A (en) | Developing method of rock-fill dam | |
| CN108035368B (en) | A kind of mud riverbed combined cofferdam and its construction method | |
| CN215888297U (en) | Firm cofferdam structure of prevention of seepage | |
| CN106758559B (en) | A kind of construction method of high-speed railway silt, flour sand embankment structure | |
| CN212983834U (en) | Combined composite foundation of controllable rigid pile and compacted gravel pile | |
| JP2016031010A (en) | Urethane foam filling method, filling pipe unit and urethane foam filling structure | |
| CN113174904A (en) | Construction method for ecological landscape open channel for downward seepage and stagnation storage in sponge city | |
| CN112813930A (en) | Construction method for constructing overflow weir surface based on overflow weir body and combined template and overflow weir | |
| CN114045849A (en) | Foundation pit high-temperature bedrock crack water drainage and plugging structure and method | |
| CN203639772U (en) | Widening embankment structure of water road | |
| CN212452757U (en) | Retaining wall drainage structures | |
| CN111379251A (en) | Controllable rigid pile and compacted gravel pile combined composite foundation and construction method thereof | |
| CN112982467A (en) | Concrete pouring device and raft foundation pouring method | |
| CN112411288A (en) | Geotextile-containing light soil widened embankment anti-floating structure and construction method thereof | |
| CN219261104U (en) | Composite drainage isolation structure behind wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |