CN111424728B - Vertical overlapping laying and sealing device and method for impermeable film of waterproof curtain - Google Patents

Vertical overlapping laying and sealing device and method for impermeable film of waterproof curtain Download PDF

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Publication number
CN111424728B
CN111424728B CN202010348779.1A CN202010348779A CN111424728B CN 111424728 B CN111424728 B CN 111424728B CN 202010348779 A CN202010348779 A CN 202010348779A CN 111424728 B CN111424728 B CN 111424728B
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seepage
film
curtain
supporting
impermeable
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CN111424728A (en
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董书宁
王海
王皓
黄选明
王晓东
朱明诚
曹海东
张雁
苗贺朝
田增林
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Xian Research Institute Co Ltd of CCTEG
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Xian Research Institute Co Ltd of CCTEG
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02Driving gear
    • B66D1/12Driving gear incorporating electric motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/12Restraining of underground water by damming or interrupting the passage of underground water

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
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Abstract

A sealing device and method for vertically overlapping and laying impermeable membranes of a water-blocking curtain, the device at least comprises a supporting and fixing assembly, a hydraulic support frame, a nail gun, a cable core steel wire rope, a winch and an anchoring nail, the supporting and fixing assembly is connected to the winch through the cable core steel wire rope, one side of the supporting and fixing assembly is provided with the hydraulic support frame, the other side of the supporting and fixing assembly is provided with the nail gun, the supporting and fixing assembly is internally provided with 1 small motor which can drive the hydraulic support frame to extend out and retract and simultaneously control the work of the nail gun, the cable core steel wire rope supplies power to the supporting and fixing assembly and provides lifting for the supporting and fixing assembly, the winch is arranged at a curtain notch to drive the cable core steel wire rope to be coiled on or off the winch and drive the supporting and fixing assembly to move up and down, therefore, the invention can effectively solve the problems of incompact compaction, untight lap joint and poor impermeable effect of adjacent impermeable membranes, the problem of limited vertical laying depth is solved, and simultaneously the compactness and the anti-seepage performance of the lap joint of the anti-seepage film are improved.

Description

Vertical overlapping laying and sealing device and method for impermeable film of waterproof curtain
Technical Field
The invention relates to the technical field of underground seepage prevention and pollution control of weather curtains, mine curtains, pollutant isolation, foundation pit waterproof curtains and the like, in particular to a sealing device and a method for vertically overlapping and laying an anti-seepage film of a waterproof curtain.
Background
In projects such as open-pit mines, mine water interception curtains, water conservancy foundation engineering seepage prevention, garbage landfill pollutant isolation, foundation pit water-stopping curtains and the like, in order to meet the strict seepage prevention requirement of curtain walls, an anti-seepage film is often adopted, a rectangular groove section is constructed in the stratum by adopting grooving equipment such as a double-wheel mill, a hydraulic grooving machine and the like, the anti-seepage film is continuously paved or overlappingly paved in the groove section, and original state soil is filled between the anti-seepage film and the groove section, and cement-fly ash slurry or concrete is filled.
In the prior art, the vertical continuous laying process of the anti-seepage film adopts connection modes such as a connection lock, a joint box and welding, the laying depth in the groove section of the underground curtain wall is generally within 20m, when the depth is increased, the vertical laying of the anti-seepage film has extremely high requirement on the synchronization of two ends of the anti-seepage film, the lifting of the anti-seepage film is difficult to control, the flatness of the anti-seepage film is difficult to ensure, and the anti-seepage film is easy to wrinkle, so that the anti-seepage film deviates from a preset position. The problem of laying depth can be solved by vertically overlapping and laying the anti-seepage films, the anti-seepage films are overlapped for 1-2m to form a continuous anti-seepage film curtain wall body, but the overlapped parts of the anti-seepage films and the anti-seepage films are often not compacted and overlapped tightly to form a larger gap, so that the continuity and the anti-seepage effect of the anti-seepage films are influenced.
Therefore, in view of the above-mentioned drawbacks, the present inventors have conducted extensive research and design to overcome the above-mentioned drawbacks by designing and designing a sealing device and method for vertically overlapping and laying an impermeable film for a water-blocking curtain, which combines the experience and result of related industries for many years.
Disclosure of Invention
The invention aims to provide a device and a method for vertically overlapping, laying and sealing impermeable films of a water-blocking curtain, which can effectively solve the problems of incompact compaction, incompact lap joint and poor impermeable effect of adjacent impermeable films, and improve the compactness and the impermeable performance of the lap joint of the impermeable films while solving the problem of limited vertical laying depth.
In order to realize the aim, the invention discloses a sealing device for vertically overlaying and laying an impermeable film of a waterproof curtain, which at least comprises a supporting and fixing assembly, a hydraulic supporting frame, a nail gun, a cable core steel wire rope, a winch and anchoring nails, and is characterized in that:
the supporting and fixing assembly is connected to a winch through a cable core steel wire rope, one side of the supporting and fixing assembly is provided with 4 hydraulic supporting frames, the other side of the supporting and fixing assembly is provided with 2 nail guns, 1 small motor is arranged inside the supporting and fixing assembly, the hydraulic support frame can be driven to extend and retract, the work of the nail gun is controlled, the cable core steel wire rope supplies power to the support fixing assembly and provides lifting, the winch is arranged at the opening of the curtain and drives the cable core steel wire rope to be coiled on or put down the winch and the supporting and fixing assembly to move up and down, therefore, the supporting and fixing assembly is put down to a set position in the groove section of the curtain wall, the hydraulic supporting frame is driven to extend outwards and is supported on the groove wall at one side of the groove section of the curtain wall, the anti-seepage film lap joint section is extruded to be attached to the other side of the groove section of the curtain wall through the nail gun at the other side of the supporting and fixing assembly, and the anti-seepage film is anchored on the other side of the groove section of the curtain wall through the nail gun.
Wherein: the support fixture assembly has a rectangular housing.
Wherein: the center of the cable core steel wire rope is a power supply cable, and the outer side of the cable core steel wire rope is wrapped by a lifting steel wire rope.
Wherein: the winch automatically records the lifting or lowering distance and sets fixed parameters to realize automatic lowering or lifting according to requirements.
Wherein: the end of the hydraulic support frame is in a flange shape and is effectively supported on the groove wall on one side of the curtain groove section.
Wherein: the front end of the anchoring nail is fine, and the rear end of the anchoring nail is disc-shaped.
The impermeable film vertical overlapping laying and sealing device for the waterproof curtain comprises N supporting and fixing assemblies and a winch, wherein the N supporting and fixing assemblies and the winch can be arranged at intervals along the direction of a notch of an overlapping section of the laid impermeable film, wherein N is 1, 2, 3, … … and m-1, and m is an integer; n support fixed assembly and hoist engine are used for compacting m prevention of seepage membrane, its characterized in that includes the following step:
the method comprises the following steps: the method comprises the following steps of (1) laying m anti-seepage films in a curtain groove section, enabling the anti-seepage films to be tightly attached to one side of the curtain groove section, laying an ith anti-seepage film firstly, and then laying an (i + 1) th anti-seepage film, wherein the ith anti-seepage film is transversely overlapped with the (i + 1) th anti-seepage film by 1-2m, wherein i is 1, 2, 3, m-1, and m is an integer;
step two: the method comprises the following steps that N anti-seepage films for the water-blocking curtain are vertically overlaid, paved and sealed on lap joint sections of the i-th anti-seepage film and the i + 1-th anti-seepage film respectively, a winch downwards puts a supporting and fixing assembly to the bottom of a curtain groove section through a cable core steel wire rope, and a certain gap is formed among the supporting and fixing assembly, the curtain groove section and the anti-seepage films, so that the supporting and fixing assembly can conveniently move up and down;
step three: when the supporting and fixing assembly is placed at the bottom of the tank, the cable core steel wire rope supplies power to the supporting and fixing assembly, drives the hydraulic support frame to extend outwards, supports the cable core steel wire rope on the wall of one side of the curtain tank section, and extrudes the anti-seepage film lap joint section to be attached to the wall of the other side of the curtain tank section through the nail gun on the other side of the supporting and fixing assembly;
step four: the cable core steel wire rope supplies power to the supporting and fixing assembly, the nail gun is driven to eject the anchoring nail outwards, 2 pieces of impermeable films of the impermeable film lap joint section are anchored on the other side groove wall of the curtain groove section, and the 2 pieces of impermeable films are tightly pressed together;
step five: a motor in the supporting and fixing assembly drives the hydraulic supporting frame to retract, the winch rotates to coil a steel wire rope of the lifting cable core, and the lifting supporting and fixing assembly moves upwards to a next preset position with a distance of 3-5m and can be adjusted according to actual needs;
step six: and repeating the third step and the fifth step until all the lap joint sections of the impermeable membrane are laid flat and compacted, and the anchoring nails are compacted to the positions of the notches.
Wherein: the anti-seepage films are laid in the hydraulic grab bucket or the curtain groove section of the double-wheel milling groove, a balance weight is added to the bottom of each anti-seepage film when the anti-seepage films are laid, the anti-seepage films are convenient to place, the tops of the anti-seepage films are fixed at the notches, each anti-seepage film is laid along the adjacent anti-seepage film and transversely lapped for 1-2m, and the winch is placed at the notch position of the lap joint section of the anti-seepage films.
Also discloses a vertical overlapping laying and sealing method of the impermeable membrane for the water-blocking curtain, which uses the vertical overlapping laying and sealing device of the impermeable membrane for the water-blocking curtain and is characterized by comprising the following steps:
the method comprises the following steps: forming a curtain wall groove section, and adopting a double-wheel mill or a hydraulic grab bucket to form a groove, wherein the width of the curtain wall groove section is 600mm, 800mm or 1000mm, and the curtain wall groove section is positioned in a water-resisting layer and encloses a foundation pit, a pollutant diffusion area, an open pit or a mineshaft;
step two: after the curtain wall groove section is formed, a first HDPE impermeable film is placed and laid by clinging to one side of the curtain wall groove section, and the top end of the first HDPE impermeable film is fixed on a notch of the curtain wall groove section 1 by a rivet;
step three: putting and laying a second HDPE anti-seepage film tightly attached to one side of the groove section of the curtain wall, transversely lapping the second HDPE anti-seepage film and the first HDPE anti-seepage film for 1-2m, and fixing the top end of the second HDPE anti-seepage film on the notch of the groove section of the curtain wall by adopting rivets;
step four: putting and laying a third HDPE anti-seepage film tightly attached to one side of the groove section of the curtain wall, transversely lapping the third HDPE anti-seepage film and the second HDPE anti-seepage film for 1-2m, and fixing the top end of the third HDPE anti-seepage film on the notch of the groove section of the curtain wall by adopting a rivet;
step five: vertically overlaying, laying and sealing an impermeable film for a water-blocking curtain on an impermeable film lapping section of a first HDPE impermeable film and a second HDPE impermeable film, and placing a supporting and fixing assembly at the bottom of a curtain groove section;
step six: the hydraulic support frame is driven to extend outwards and is supported on the groove wall on one side of the groove section of the curtain wall, and the anti-seepage film lap joint section is extruded by the nail gun to be attached to the groove wall on the other side of the groove section of the curtain wall;
step seven: driving a nail gun to jet an anchoring nail outwards, anchoring 2 HDPE impermeable films of the overlapping section of the impermeable films on the other side of the groove section of the curtain wall, and tightly pressing the first HDPE impermeable film and the second HDPE impermeable film together;
step eight: the winch rotates, the lifting support fixing assembly moves upwards to a next preset position, and the distance is 3-5 m;
step nine: repeating the sixth step to the eighth step until the lap joint sections of the impermeable films of the first HDPE impermeable film and the second HDPE impermeable film are laid flatly and compacted, and the anchoring nails are compacted to the positions of the notches;
step ten: vertically overlaying, laying and sealing an impermeable film for a water-blocking curtain on an impermeable film lapping section of a third HDPE impermeable film and a fourth HDPE impermeable film, and placing a supporting and fixing assembly at the bottom of a curtain groove section by a winch;
step eleven: and repeating the sixth step to the eighth step until the lap joint section of the impermeable membrane of the second impermeable membrane and the impermeable membrane of the third impermeable membrane is laid flat and compacted, and the anchoring nails are compacted to the position of the notch.
Wherein: further comprising the step of twelve: and filling clay, poured cement-fly ash slurry, mortar or concrete into a gap between the lap joint section of the anti-seepage film and the curtain groove section, fixing the first HDPE anti-seepage film, the second HDPE anti-seepage film and the third HDPE anti-seepage film in the curtain groove section, and combining the first HDPE anti-seepage film, the second HDPE anti-seepage film and the third HDPE anti-seepage film with a filling or pouring material into an organic whole, so that the anti-seepage capability and the anti-seepage grade of the curtain wall body are further improved.
From the above, the device and the method for vertically overlaying, laying and sealing the impermeable film of the waterproof curtain have the following effects:
1. the anti-seepage film vertical overlapping laying sealing device for the water-blocking curtain has the advantages of simple structure, simple operation, practicability and reliability;
2. the laying depth of the anti-seepage film is not influenced by the strict requirements of the processes such as connecting locks, joint boxes, welding and the like on the construction space, the verticality and the flatness, the laying depth of the anti-seepage film can reach tens of meters or hundreds of meters, the anti-seepage film is laid smoothly without wrinkle, and the lap joint section is compact;
3. the device and the method for vertically overlapping, laying and sealing the impermeable films of the water-blocking curtain realize the compaction of lap joint sections between the adjacent impermeable films and ensure that the adjacent impermeable films are tightly connected into an organic whole, effectively improve the waterproofness and the impermeability of the joints of the adjacent impermeable films and reduce the difficulty of the connection of the impermeable films and the impermeable films.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
FIG. 1 shows a schematic view of the apparatus and method for vertically overlaying and laying an impermeable film for a water-blocking curtain according to the present invention.
Fig. 2 shows a schematic plan view of the effect of the present invention.
FIG. 3 shows a front view of the sealing device for vertically overlaying the impermeable film for water-blocking curtains of the present invention.
FIG. 4 shows a side view of the sealing device for the vertical imbrication of the impermeable film for the water-blocking curtain of the present invention.
Reference numerals:
1. the curtain wall comprises a curtain wall groove section, 2, a first HDPE anti-seepage film, 3, a second HDPE anti-seepage film, 3, 4, an anti-seepage film lap joint section, 5, a supporting and fixing assembly, 6, a hydraulic support frame, 7, a nail gun, 8, a cable core steel wire rope, 9, a winch, 10, an anchoring nail, 11 and a third HDPE anti-seepage film.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. In which like parts are designated by like reference numerals.
Referring to fig. 1-4, the impermeable film vertical overlapping laying sealing device for the water-blocking curtain at least comprises a supporting and fixing assembly 5, a hydraulic supporting frame 6, a nail gun 7, a cable core steel wire rope 8, a winch 9 and an anchoring nail 10.
The supporting and fixing assembly 5 is connected to a winch 9 through a cable core steel wire rope 8, one side of the supporting and fixing assembly is provided with 4 hydraulic supporting frames 6, the other side of the supporting and fixing assembly is provided with 2 nail guns 7, and 1 small motor is arranged inside the supporting and fixing assembly 5 and can drive the hydraulic supporting frames 6 to extend out and retract and control the nail guns 7 to work. The cable core steel wire rope 8 can supply power to the supporting and fixing assembly 5 and has strong lifting capacity. The winch 9 is arranged at a curtain notch, and can drive the cable core steel wire rope 8 to be wound on the winch 9 or to be lowered down through motor driving or manual rotation, and the supporting and fixing assembly 5 is driven to move up and down. The cable core steel wire rope 8 is provided with length scale marks, and the distance and the depth of lifting or lowering can be recorded. The winch 9 can automatically record the lifting or lowering distance and can set fixed parameters to realize automatic lowering or lifting according to requirements.
In operation, the supporting and fixing assembly is placed at a set position in the curtain wall groove section 1, the cable core steel wire rope 8 supplies power for the supporting and fixing assembly 5, the hydraulic supporting frame 6 is driven to extend outwards to be supported on the groove wall at one side of the curtain wall groove section 1, and the impermeable film lap joint section 4 is extruded by the nail gun 7 at the other side of the supporting and fixing assembly 5 to be attached to the groove wall at the other side of the curtain wall groove section 1. The nail gun 7 outwardly ejects the anchoring nail 10 to anchor the 2 sheets of the impermeable film of the overlapping section 4 of the impermeable film to the other side wall of the groove section 1 of the curtain wall, whereby the plurality of layers of the impermeable film are tightly pressed together.
Wherein, the supporting and fixing assembly 5 is provided with a rectangular shell, and the hydraulic supporting frame can be extended and retracted under the driving of an internal motor and can control the work of the nail gun.
The center of the cable core steel wire rope 8 is a power supply cable, the outer side of the cable core steel wire rope is wrapped by a lifting steel wire rope, power can be supplied to the supporting and fixing assembly, and meanwhile the cable core steel wire rope has strong lifting capacity.
The winch 9 is arranged in a curtain notch, and can drive the cable core steel wire rope to be wound on or released from the winch through motor driving or manual rotation and drive the supporting and fixing assembly to move up and down. The hoist engine can automatic recording promote or the distance of transferring to can set up fixed parameter as required and realize automatic transferring or promoting.
The hydraulic support frame 6 is driven by hydraulic pressure and can extend and retract as required, the end of the hydraulic support frame 6 is flange-shaped, has a large area, can be effectively supported on the groove wall on one side of the curtain groove section, provides strong supporting force, and pushes the nail gun supporting the other end of the fixing assembly to be paved and tightly connected with the anti-seepage film and the connected anti-seepage film lap joint section.
The front end of the anchoring nail 10 is slender, the rear end of the anchoring nail is disc-shaped, the anti-seepage film and the lap joint section of the connection anti-seepage film are connected and tightly fixed together, and an organic continuous whole is formed in the groove section.
The invention also discloses a sealing method for vertically overlaying, laying and sealing the impermeable membrane for the water-blocking curtain, which comprises N supporting and fixing assemblies and a winch, wherein the N supporting and fixing assemblies and the winch can be arranged at intervals along the direction of the groove opening of the lapped section of the impermeable membrane, wherein N is 1, 2, 3, … …, m-1, and m is an integer; n support fixed assembly and hoist engine are used for compacting m prevention of seepage membrane, include the following step:
the method comprises the following steps: the method comprises the following steps of (1) laying m anti-seepage films in a curtain groove section, enabling the anti-seepage films to be tightly attached to one side of the curtain groove section, laying an ith anti-seepage film firstly, and then laying an (i + 1) th anti-seepage film, wherein the ith anti-seepage film is transversely overlapped with the (i + 1) th anti-seepage film by 1-2m, wherein i is 1, 2, 3, m-1, and m is an integer;
step two: the method comprises the following steps that N anti-seepage films for the water-blocking curtain are vertically overlaid, paved and sealed on lap joint sections of the i-th anti-seepage film and the i + 1-th anti-seepage film respectively, a winch downwards puts a supporting and fixing assembly to the bottom of a curtain groove section through a cable core steel wire rope, and a certain gap is formed among the supporting and fixing assembly, the curtain groove section and the anti-seepage films, so that the supporting and fixing assembly can conveniently move up and down;
step three: when the supporting and fixing assembly is placed at the bottom of the tank, the cable core steel wire rope supplies power to the supporting and fixing assembly, drives the hydraulic support frame to extend outwards, supports the cable core steel wire rope on the wall of one side of the curtain tank section, and extrudes the anti-seepage film lap joint section to be attached to the wall of the other side of the curtain tank section through the nail gun on the other side of the supporting and fixing assembly;
step four: the cable core steel wire rope supplies power to the supporting and fixing assembly, the nail gun is driven to eject the anchoring nail outwards, 2 pieces of impermeable films of the impermeable film lap joint section are anchored on the other side groove wall of the curtain groove section, and the 2 pieces of impermeable films are tightly pressed together;
step five: a motor in the supporting and fixing assembly drives the hydraulic supporting frame to retract, the winch rotates to coil a steel wire rope of the lifting cable core, and the lifting supporting and fixing assembly moves upwards to a next preset position with a distance of 3-5m and can be adjusted according to actual needs;
step six: and repeating the third step and the fifth step until all the lap joint sections of the impermeable membrane are laid flat and compacted, and the anchoring nails are compacted to the positions of the notches.
The anti-seepage films are laid in the curtain groove sections of the hydraulic grab bucket or the double-wheel milling groove, a balance weight is added to the bottom of each anti-seepage film when the anti-seepage films are laid, the anti-seepage films are convenient to put down, the tops of the anti-seepage films are fixed at the notches, each anti-seepage film is laid along the adjacent anti-seepage film and transversely lapped for 1-2m, and the winch is placed at the notch position of the lapping section of the anti-seepage films.
The invention also discloses a vertical overlapping laying and sealing method of the impermeable membrane for the water-blocking curtain, which is realized by the vertical overlapping laying and sealing device of the impermeable membrane for the water-blocking curtain, and specifically comprises the following steps:
the method comprises the following steps: forming a curtain wall groove section 1 which can be grooved by adopting a double-wheel mill or a hydraulic grab, wherein the width of the curtain wall groove section 1 is 600mm, 800mm or 1000mm, the depth reaches the design depth, and the curtain wall groove section is positioned in a water-resisting layer and encloses a foundation pit, a pollutant diffusion area, an open pit or a well mine.
Step two: after the curtain wall groove section 1 is formed, a first HDPE impermeable film 2 is placed and laid by clinging to one side of the curtain wall groove section 1, the depth reaches the design depth, and the top end of the first HDPE impermeable film 2 is fixed on a notch of the curtain wall groove section 1 by rivets;
step three: putting and laying a second HDPE (high-density polyethylene) impermeable film 3 tightly attached to one side of the curtain wall groove section 1, wherein the depth reaches the design depth, the second HDPE impermeable film 3 is transversely lapped with the first HDPE impermeable film 2 for 1-2m, and the top end of the second HDPE impermeable film 3 is fixed on a notch of the curtain wall groove section 1 by adopting a rivet;
step four: putting and laying a third HDPE (high-density polyethylene) impermeable film 11 tightly attached to one side of the curtain wall groove section 1, wherein the depth reaches the design depth, the third HDPE impermeable film is transversely lapped with a second HDPE impermeable film 3 for 1-2m, and the top end of the third HDPE impermeable film 11 is fixed on a notch of the curtain wall groove section 1 by a rivet;
step five: the anti-seepage film vertical overlapping laying sealing device for the water-blocking curtain is placed at the anti-seepage film lap joint section 4 of the first HDPE anti-seepage film 2 and the second HDPE anti-seepage film 3, the winch 9 places the supporting and fixing assembly 5 to the bottom of the curtain groove section through the cable core steel wire rope 8, a certain gap is formed between the supporting and fixing assembly 5 and the curtain wall groove section 1 and between the supporting and fixing assembly 5 and the anti-seepage film lap joint section 4, and the supporting and fixing assembly 5 can move up and down conveniently.
Step six: the supporting and fixing assembly 5 is placed at the bottom of the groove section 1 of the curtain wall, the cable core steel wire rope 8 supplies power for the supporting and fixing assembly 5, the hydraulic support frame 6 is driven to extend outwards to be supported on the groove wall on one side of the groove section 1 of the curtain wall, and the anti-seepage film lap joint section 4 is extruded by the nail gun 7 on the other side of the supporting and fixing assembly 5 to be attached to the groove wall on the other side of the groove section 1 of the curtain wall.
Step seven: the cable core steel wire rope 8 supplies power to the supporting and fixing assembly 5, the nail gun 7 is driven to eject the anchoring nail 10 outwards, 2 HDPE anti-seepage films of the anti-seepage film lap joint section 4 are anchored on the groove wall of the other side of the curtain wall groove section 1, and the first HDPE anti-seepage film 2 and the second HDPE anti-seepage film 3 are tightly pressed together.
Step eight: the motor in the supporting and fixing assembly 5 drives the hydraulic support frame 6 to retract, the winch 9 rotates to lift and coil the cable core steel wire rope 8, and the lifting and supporting and fixing assembly 5 moves upwards to a next preset position with the distance of 3-5m and can also be adjusted according to actual needs.
Step nine: and repeating the sixth step to the eighth step until the anti-seepage film lap joint section 4 of the first HDPE anti-seepage film 2 and the second HDPE anti-seepage film 3 is laid flatly and compacted, and the anchoring nails are compacted to the positions of the notches.
Step ten: the anti-seepage film vertical overlapping laying sealing device for the water-blocking curtain is placed at the anti-seepage film lap joint section 4 of the third HDPE anti-seepage film 3 and the fourth HDPE anti-seepage film 11, the winch 9 places the supporting and fixing assembly 5 to the bottom of the curtain groove section through the cable core steel wire rope 8, a certain gap is formed between the supporting and fixing assembly 5 and the curtain wall groove section 1 and between the supporting and fixing assembly 5 and the anti-seepage film lap joint section 4, and the supporting and fixing assembly 5 can move up and down conveniently.
Step eleven: and repeating the sixth step to the eighth step until the anti-seepage film lap joint section 4 of the second anti-seepage film 3 and the third anti-seepage film 11 is laid flatly and compacted, and the anchoring nails are compacted to the positions of the notches.
Step twelve: and filling clay, poured cement-fly ash slurry, mortar or concrete into the gap between the anti-seepage film lap joint section 4 and the curtain groove section, so that the first HDPE anti-seepage film 2, the second HDPE anti-seepage film 3 and the third HDPE anti-seepage film 11 are fixed in the curtain groove section, and the first HDPE anti-seepage film 2, the second HDPE anti-seepage film 3 and the third HDPE anti-seepage film 11 are combined with a filling or pouring material into an organic whole, so that the anti-seepage capability and anti-seepage grade of the curtain wall body are further improved.
Therefore, the invention has the advantages that:
1. the anti-seepage film vertical overlapping laying sealing device for the water-blocking curtain has the advantages of simple structure, simple operation, practicability and reliability;
2. the laying depth of the HDPE impermeable membrane is not influenced by the strict requirements of the processes such as connecting locks, joint boxes, welding and the like on construction space, verticality and flatness, the laying depth of the HDPE impermeable membrane can reach tens of meters or hundreds of meters, and the HDPE impermeable membrane is laid smoothly without wrinkle and is compact in lap joint;
3. the device and the method for vertically overlaying, laying and sealing the anti-seepage films for the water-blocking curtain realize the compaction of the lap joint sections between the adjacent HDPE anti-seepage films and ensure that the adjacent HDPE anti-seepage films are tightly connected into an organic whole, effectively improve the water resistance and the anti-seepage performance of the joints of the adjacent anti-seepage films and reduce the difficulty of the connection of the HDPE anti-seepage films and the HDPE anti-seepage films.
It should be apparent that the foregoing description and illustrations are by way of example only and are not intended to limit the present disclosure, application or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention will include any embodiments falling within the foregoing description and the appended claims.

Claims (9)

1. The utility model provides a prevent that osmosis membrane is perpendicularly folded and is laid sealing device for waterproof curtain, includes at least that support fixed assembly, hydraulic support frame, power actuated setting device, cable core wire rope, hoist engine and anchor nail, its characterized in that:
the supporting and fixing assembly is connected to a winch through a cable core steel wire rope, one side of the supporting and fixing assembly is provided with 4 hydraulic supporting frames, the other side of the supporting and fixing assembly is provided with 2 nail guns, 1 small motor is arranged in the supporting and fixing assembly and can drive the hydraulic supporting frames to extend out and recover and control the work of the nail guns, the cable core steel wire rope supplies power to the supporting and fixing assembly and provides lifting, the winch is arranged in a curtain groove opening and drives the cable core steel wire rope to be wound on or off the winch and drive the supporting and fixing assembly to move up and down, therefore, the supporting and fixing assembly is placed at a set position in a curtain wall groove section to drive the hydraulic supporting frames to extend outwards and be supported on one side groove wall of the curtain wall groove section, an anti-seepage film lap section is extruded by the nail guns on the other side of the curtain wall groove section to be attached to the other side groove wall of the curtain wall groove section, and the anti-seepage film is anchored by the nail guns, the center of the cable core steel wire rope is a power supply cable, and the outer side of the cable core steel wire rope is wrapped by a lifting steel wire rope.
2. A vertical imbrication and laying sealing device for impermeable membranes for water-blocking curtains, as claimed in claim 1, wherein: the support fixture assembly has a rectangular housing.
3. A vertical imbrication and laying sealing device for impermeable membranes for water-blocking curtains, as claimed in claim 1, wherein: the winch automatically records the lifting or lowering distance and sets fixed parameters to realize automatic lowering or lifting according to requirements.
4. A vertical imbrication and laying sealing device for impermeable membranes for water-blocking curtains, as claimed in claim 1, wherein: the end of the hydraulic support frame is in a flange shape and is effectively supported on the groove wall on one side of the curtain groove section.
5. A vertical imbrication and laying sealing device for impermeable membranes for water-blocking curtains, as claimed in claim 1, wherein: the front end of the anchoring nail is fine, and the rear end of the anchoring nail is disc-shaped.
6. A vertical overlapping laying and sealing method of an impermeable film for a water-blocking curtain, which uses the vertical overlapping laying and sealing device of the impermeable film for the water-blocking curtain, which is disclosed by any one of claims 1 to 5, and comprises N supporting and fixing assemblies and winches which are arranged at intervals along the direction of a notch of an overlapping section of the laid impermeable film, wherein N is 1, 2, 3, … … and m-1, and m is an integer; n support fixed assembly and hoist engine are used for compacting m prevention of seepage membrane, its characterized in that includes the following step:
the method comprises the following steps: the method comprises the following steps of (1) laying m anti-seepage films in a curtain groove section, enabling the anti-seepage films to be tightly attached to one side of the curtain groove section, laying an ith anti-seepage film firstly, and then laying an (i + 1) th anti-seepage film, wherein the ith anti-seepage film is transversely overlapped with the (i + 1) th anti-seepage film by 1-2m, wherein i is 1, 2, 3, m-1, and m is an integer;
step two: the method comprises the following steps that N anti-seepage films for the water-blocking curtain are vertically overlaid, paved and sealed on lap joint sections of the i-th anti-seepage film and the i + 1-th anti-seepage film respectively, a winch downwards puts a supporting and fixing assembly to the bottom of a curtain groove section through a cable core steel wire rope, and a certain gap is formed among the supporting and fixing assembly, the curtain groove section and the anti-seepage films, so that the supporting and fixing assembly can conveniently move up and down;
step three: when the supporting and fixing assembly is placed at the bottom of the tank, the cable core steel wire rope supplies power to the supporting and fixing assembly, drives the hydraulic support frame to extend outwards, supports the cable core steel wire rope on the wall of one side of the curtain tank section, and extrudes the anti-seepage film lap joint section to be attached to the wall of the other side of the curtain tank section through the nail gun on the other side of the supporting and fixing assembly;
step four: the cable core steel wire rope supplies power to the supporting and fixing assembly, the nail gun is driven to eject the anchoring nail outwards, 2 pieces of impermeable films of the impermeable film lap joint section are anchored on the other side groove wall of the curtain groove section, and the 2 pieces of impermeable films are tightly pressed together;
step five: a motor in the supporting and fixing assembly drives the hydraulic support frame to retract, the winch rotates to coil a steel wire rope of the lifting cable core, and the lifting supporting and fixing assembly moves upwards to a next preset position with a distance of 3-5m and is adjusted according to actual needs;
step six: and repeating the third step and the fifth step until all the lap joint sections of the impermeable membrane are laid flat and compacted, and the anchoring nails are compacted to the positions of the notches.
7. The method of laying and sealing a vertical drape of impermeable film for a water-blocking curtain as claimed in claim 6, wherein: the anti-seepage films are laid in the hydraulic grab bucket or the curtain groove section of the double-wheel milling groove, a balance weight is added to the bottom of each anti-seepage film when the anti-seepage films are laid, the anti-seepage films are convenient to place, the tops of the anti-seepage films are fixed at the notches, each anti-seepage film is laid along the adjacent anti-seepage film and transversely lapped for 1-2m, and the winch is placed at the notch position of the lap joint section of the anti-seepage films.
8. A vertical overlapping laying and sealing method of an impermeable film for a water-blocking curtain, using the vertical overlapping laying and sealing device of the impermeable film for the water-blocking curtain of any one of claims 1 to 5, characterized by comprising the steps of:
the method comprises the following steps: forming a curtain wall groove section, and adopting a double-wheel mill or a hydraulic grab bucket to form a groove, wherein the width of the curtain wall groove section is 600mm, 800mm or 1000mm, and the curtain wall groove section is positioned in a water-resisting layer and encloses a foundation pit, a pollutant diffusion area, an open pit or a mineshaft;
step two: after the curtain wall groove section is formed, a first HDPE impermeable film is placed and laid by clinging to one side of the curtain wall groove section, and the top end of the first HDPE impermeable film is fixed on a notch of the curtain wall groove section by a rivet;
step three: putting and laying a second HDPE anti-seepage film tightly attached to one side of the groove section of the curtain wall, transversely lapping the second HDPE anti-seepage film and the first HDPE anti-seepage film for 1-2m, and fixing the top end of the second HDPE anti-seepage film on the notch of the groove section of the curtain wall by adopting rivets;
step four: putting and laying a third HDPE anti-seepage film tightly attached to one side of the groove section of the curtain wall, transversely lapping the third HDPE anti-seepage film and the second HDPE anti-seepage film for 1-2m, and fixing the top end of the third HDPE anti-seepage film on the notch of the groove section of the curtain wall by adopting a rivet;
step five: vertically overlaying, laying and sealing an impermeable film for a water-blocking curtain on an impermeable film lapping section of a first HDPE impermeable film and a second HDPE impermeable film, and placing a supporting and fixing assembly at the bottom of a curtain groove section;
step six: the hydraulic support frame is driven to extend outwards and is supported on the groove wall on one side of the groove section of the curtain wall, and the anti-seepage film lap joint section is extruded by the nail gun to be attached to the groove wall on the other side of the groove section of the curtain wall;
step seven: driving a nail gun to jet an anchoring nail outwards, anchoring 2 HDPE impermeable films of the overlapping section of the impermeable films on the other side of the groove section of the curtain wall, and tightly pressing the first HDPE impermeable film and the second HDPE impermeable film together;
step eight: the winch rotates, the lifting support fixing assembly moves upwards to a next preset position, and the distance is 3-5 m;
step nine: repeating the sixth step to the eighth step until the lap joint sections of the impermeable films of the first HDPE impermeable film and the second HDPE impermeable film are laid flatly and compacted, and the anchoring nails are compacted to the positions of the notches;
step ten: vertically overlaying, laying and sealing an impermeable film for a water-blocking curtain on an impermeable film lapping section of a third HDPE impermeable film and a fourth HDPE impermeable film, and placing a supporting and fixing assembly at the bottom of a curtain groove section by a winch;
step eleven: and repeating the sixth step to the eighth step until the lap joint section of the impermeable membrane of the second impermeable membrane and the impermeable membrane of the third impermeable membrane is laid flat and compacted, and the anchoring nails are compacted to the position of the notch.
9. The method of vertically draping, laying and sealing an impermeable film for a water-blocking curtain as claimed in claim 8, wherein: further comprising the step of twelve: and filling clay, poured cement-fly ash slurry, mortar or concrete into a gap between the lap joint section of the anti-seepage film and the curtain groove section, fixing the first HDPE anti-seepage film, the second HDPE anti-seepage film and the third HDPE anti-seepage film in the curtain groove section, and combining the first HDPE anti-seepage film, the second HDPE anti-seepage film and the third HDPE anti-seepage film with a filling or pouring material into an organic whole, so that the anti-seepage capability and the anti-seepage grade of the curtain wall body are further improved.
CN202010348779.1A 2020-04-28 2020-04-28 Vertical overlapping laying and sealing device and method for impermeable film of waterproof curtain Active CN111424728B (en)

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