CN210315779U - A facility that is used for water intaking in torrent riverbed - Google Patents
A facility that is used for water intaking in torrent riverbed Download PDFInfo
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- CN210315779U CN210315779U CN201921201206.5U CN201921201206U CN210315779U CN 210315779 U CN210315779 U CN 210315779U CN 201921201206 U CN201921201206 U CN 201921201206U CN 210315779 U CN210315779 U CN 210315779U
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Abstract
The utility model provides a facility for taking water in an torrent riverbed, which comprises a water conduit, a positioning steel pipe pile, a connecting beam parallel to the axis of the water conduit, a pile cap, an I-steel beam, a distribution beam, a steel panel, a stand column, a bearing beam, a water taking head flower stand, a water retaining facility, a beam frame pipe, a railing, a sidewalk plate, a lifting ring welding piece, a chain block, a canvas lifting sling, a roller, a water conduit flower stand and a connecting beam vertical to the axis of the water conduit; the water intake facility is used for drawing river water in the center of a river through a water intake pipeline for domestic and production water and is formed by combining a water intake head and a water diversion pipe; the positioning steel pipe pile position is used as a supporting system, a water intake pipe truss working platform and a bell mouth assembly working platform are established, the water intake facility integrally connected into a whole is integrally lowered to a falling groove by using a mooring crane and a chain block, and the dry operation of assembling the water intake head and connecting the water intake pipe is realized.
Description
Technical Field
The utility model relates to a water intaking facility field in water works or suction pump room construction period especially relates to a facility of fetching water in torrent riverbed.
Background
The water taking facility generally refers to a water taking head, a water conduit and a bell mouth butt joint facility at the joint of the water taking head and the water conduit, and the construction and installation of the water taking facility is one of the most critical processes in the construction period of a water plant. The method has the problems of high construction safety risk, difficulty in reaching the standard in environmental protection, long construction period and high construction cost. In the prior art, the solutions adopted by those skilled in the art to solve the above technical problems are generally divided into two methods, namely wading operation and land-water conversion dry operation, and the methods are used for installing water taking facilities. In wading operation, a floating and sinking installation method is generally adopted, pipelines are transported to a given water area in a floating mode in sections, water is injected into the pipeline to sink to a given position, and a ship and a raft ship are adopted for auxiliary implementation. The land-water conversion dry-method operation is relatively simple and clear, namely water flow guiding is carried out by adopting modes of pipe burying, drainage and the like, and then water is pumped by adopting modes of cofferdams, caissons and the like to form dry-land conditions for operation. However, the dry land-water conversion operation is suitable for the working conditions of shallow water, low flow speed and no navigation, and the premise of floating transportation and sinking installation in the water-related operation is that the dry land-water conversion operation is required to be carried out under the working conditions of subsection, slow flow and low navigation requirements.
Like installing water taking facilities in Jinsha river (belonging to the river center navigation area of the Jinsha river basin, a primary water source and a Chinese sturgeon protection area) with the distance of 20-80 m from the shore, the water depth of 9m and the flow speed of 6m/s (the concrete conditions are that a double water guide pipe with the diameter of 1420 multiplied by 14mm (the underwater part mileage is K0+ 000-K0 + 055) and a ship-shaped steel structure water taking head with the length of 12.4m, the width of 3.6m and the height of 5.9m (the total weight of the water taking head is 36.9 tons)), and the working condition of navigation conditions must be reserved, and the safety risk is huge by adopting a sectional floating cloud sinking installation method, so that a new process and a new method suitable for installing the water taking facilities in the torrent river bed are researched, practical and effective measures are taken in the torrent river bed, and the installation problem of the water taking facilities is solved from the aspects of construction period, cost benefit and safety quality control, and.
Disclosure of Invention
The utility model discloses an effective measure is taken to the purpose in the torrent riverbed, reduces the rivers deceleration in the construction area, avoids dive powder charge under water, solves the installation problem of water intaking facility.
The utility model discloses a solve above-mentioned technical problem, provide following technical scheme:
the utility model relates to a facility for taking water in an torrent riverbed, which is characterized by comprising a water conduit, a positioning steel pipe pile, a connecting beam parallel to the axis of the water conduit, a pile cap, an I-shaped steel beam, a distribution beam, a steel panel, a stand column, a bearing beam, a water taking head flower stand, a water retaining facility, a beam frame pipe, a railing, a sidewalk plate, a lifting ring welding piece, a chain block, a canvas hoisting sling, a roller, a water conduit flower stand and a connecting beam vertical to the axis of the water conduit; the water intake facility is used for drawing river water in the center of a river through a water intake pipeline for domestic and production water and is formed by combining a water intake head and a water diversion pipe; establishing a water conduit truss working platform and a bell mouth assembly working platform by taking the positioning steel pipe pile position as a supporting system, arranging a construction channel at the downstream of the truss platform for personnel to go up and down, arranging I-shaped steel cross beams on the tops of every three rows of vertical positioning steel pipe piles, and arranging two 10T chain blocks on each I-shaped steel cross beam to be used for bundling and hoisting pipelines; the method comprises the following steps of establishing a 14m multiplied by 5m steel truss platform as a water taking steel member welding and hoisting working platform by taking a positioning steel pipe pile position as a supporting system, wherein two portal-shaped supports are longitudinally arranged on the platform along the water flow direction of a water taking facility and are connected through bearing beams and flower stands to form a frame structure, and two 20T hand chain hoists are arranged on each bearing beam and are used for hanging ring type hoisting of a water taking head; the water taking facilities connected into a whole are integrally lowered down to the falling groove by using the mooring crane and the chain block, so that the dry operation of assembling the water taking head and connecting the water guide pipe is realized.
The integral installation and construction method of the facility for taking water from the torrent riverbed is characterized by comprising the following steps of:
(1): the barge and the drilling and blasting ship are used for constructing a double-row steel pipe truss single-wall water baffle in a step-by-step implementation mode of a steel truss and a steel panel, so that the water flow reduction speed in a construction area is reduced;
(2): performing simulated falling groove excavation on the water taking facility by using a drilling and blasting ship in an underwater deep hole blasting mode of blasting with a blast hole diameter of 90mm and a hole depth of more than 5m, row-to-row differential blasting and single-section explosive quantity control;
(3): the method comprises the following steps of drilling along with a pipe by using a piling ship with a drilling machine in a three-pipe two-drilling method, constructing small-diameter steel pipe positioning piles, arranging 5 rows of 6 rows of positioning steel pipe piles by using a water intake head, wherein the row spacing is 2.4m, 4.2m and 2.4m respectively, and the row spacing is 0.9 m; 3 rows of positioning steel pipe piles are arranged at the bell mouth of the water conduit and combined with a water intake head, wherein the row spacing is 4.2m, and the row spacing is 2.0 m; the straight line segment water guide pipes are arranged in 5 rows and 24 rows, the row spacing is 1.2m, 2.1m, 0.6m and 1.2m respectively, and the row spacing is 2.0 m;
(4): arranging a temporary wharf at the downstream bank of the temporary water truss, tying a 500-horsepower maneuvering boat and a wharf boat together for driving, transferring and hoisting a steel truss platform component by using the wharf boat and a floating crane as a water transportation platform, establishing a 14m multiplied by 5m steel truss platform as a welding and hoisting working platform of a water taking head steel component by using a steel pipe positioning pile as a supporting system, longitudinally arranging two portal-shaped supports on the platform along the water flow direction of a water taking facility, and configuring 6 hand-pulled chain blocks with 20 tons for hoisting operation;
(5): the method comprises the following steps of establishing a water conduit truss working platform and a bell mouth splicing working platform by utilizing a pontoon and a floating crane and taking a steel pipe positioning pile position as a supporting system, arranging a truss and an operating platform on the shore of a downstream facility construction channel of the truss platform for people to go up and down, arranging I-shaped steel beams on the tops of two rows of vertical steel pipe positioning piles, and arranging two 10T hand chain hoists on each beam to be used for bundling and hoisting pipelines;
(6): hoisting the water conduit by using a chain block, sequentially conveying the water conduit from the bank side to the water intake head direction in the river, and configuring two winches to transport the water conduit to a specified position in a matching way;
(7): the method comprises the following steps of transferring water intake head components by using a wharf boat as a transportation platform, numbering hanging pieces before hoisting, hoisting the water intake head steel components to the transportation boat parked at a temporary wharf in groups according to the number by using a 50T truck crane on the bank, enabling the transportation boat to run to the position close to a water intake head overwater operation platform, hoisting the water intake head steel components to the water intake head overwater operation platform by using a barge crane or a floating crane for assembling and splicing, and finely hoisting the components by using a configured 20T chain block after the components are transported to the platform;
(8): utilize and refute the boat crane, chain block will the leading water pipe, the horn mouth, the whole departure of water intaking head is to the above-water work platform face, then demolish the cylinder and the transverse connection component of leading water pipe truss, also demolish the work platform steel sheet and the vertical and horizontal connection component of water intaking portion, make behind the water intaking head steel case not having the barrier, will connect into the whole equal fast groove that drops of water intaking facility, one section distance is just demolishd the horizontal pole that hinders leading water pipe and transfer at every time of transferring, and connect the horizontal pole that leading water pipe upper portion has been demolishd immediately, ensure the structural stability of support, the repetition is in place until the groove that drops, accomplish the installation of water intaking facility.
Wherein: in the step (1), the double-row steel pipe truss single-wall water baffle is arranged at the position 8-10 m at the upstream of the water taking facility and goes deep into water, the length of the end is set to exceed the water taking head by not less than 10m so as to reduce the water flow velocity of the water taking head water construction area and eliminate the potential safety hazard of water baffle backflow to the water taking head construction, a ship anchor is arranged to anchor the water baffle through a steel wire rope, the water flow impact force is shared, and the lower part of the water flow is converted into the bending moment torsion force through the support pile of the steel truss so as to be transmitted to the foundation.
Wherein: the step (2) further comprises: the method is characterized in that a steel pipe for charging is followed by a drill bit of a drilling machine by adopting a three-pipe two-drilling method, so that a charging process is guided to the water surface from the water, the charging work can be completed only by sequentially charging from the top of the steel pipe on a ship, underwater diving charging is avoided, waiting is carried out for 15 minutes after detonation, a security worker and a blasting worker check an explosion area and process blind guns, underwater slag removal is carried out by adopting a dredger and an ultra-long arm excavator, and then an underwater camera and a terrain scanner are matched to inspect a foundation trench, so that the inspection and acceptance of the foundation trench in a deepwater river are realized.
Wherein: in the step (3): the steel pipe positioning pile is higher than the construction normal water level by not less than 2.2m, the steel pipe positioning pile is constructed by adopting a hydraulic drilling machine for geological exploration, two drilling machine drill bits are used as eccentric drilling machines, the specification model of the steel pipe is D168mm, the wall thickness of the seamless T40 steel pipe is 8mm, a standard internal turning thread sleeve is adopted for lengthening, the rock-socketed depth is 2.5 m-3 m, and C30 fine-stone concrete is pressure-poured into the steel pipe to form the steel pipe concrete pile.
Wherein: in the step (5): a detachable movable cross beam is arranged on each row of steel pipe positioning piles, and the detachable movable cross beams play a role of bearing the weight of the pipeline and providing an operation platform during pipeline transportation and butt joint; play safety protection insurance effect when the pipeline is transferred, and every transfer 50cm needs to carry out fine tuning and measurement calibration, set up the cylinder on the crossbeam of 0.5m department from the surface of water in the middle for the pipe-line transportation, between two sections leading water pipes, for preventing that the steel pipe from taking place flexible deformation, it is fixed to add staple bolt or welding I-steel at two sections steel pipe junctions before carrying to the river.
Wherein: in the step (8): before the whole body is sunk, sinking positioning marks and scales are manufactured, anti-collision and drowning rescue measures are implemented, a counter weight for preventing a water taking facility from floating upwards is arranged, a limiting device is arranged, hoisting points are reasonably arranged and hung in a trial mode, the performance of hoisting equipment is checked, and a diver can arrive at the post in place.
Wherein: further comprising the step (9): after sinking to the right place, a diver observes the contact condition of the water intake head and the water conduit with the foundation trench from the bottom, if a larger gap exists under the conduit, the diver lays and fills the C30 concrete blocks into flat blocks and then piles the formwork bag concrete and pours the C30 underwater concrete covered conduit.
Wherein: in the step (9), concrete in the underwater concrete pouring construction is doped with an underwater undispersed concrete flocculant.
Wherein: further comprising the step (10): and after the underwater concrete reaches the design strength, dismantling the steel truss platform and the water baffle, cutting off the steel pipe positioning pile, and recovering the river channel.
The utility model has the advantages that: the utility model relates to a facility and integral erection construction method for water intaking in torrent riverbed takes tangible effective measure in torrent riverbed, reduces the rivers deceleration in the construction area, avoids dive powder charge under water, and convenient solution water intaking facility's integral erection and acceptance check problem to can realize cyclic utilization.
Drawings
FIG. 1 is a basic plan view of the present invention
FIG. 2 is a cross-sectional view of the water intake head of the present invention
FIG. 3 is a cross-sectional view of the water conduit of the present invention
FIG. 4 is an elevation view of the present invention
FIG. 5 is a view showing the connection mode of the positioning steel pipe column pile top of the present invention
FIG. 6 is a flowchart of the construction method of the present invention
In the figure: 1. the method comprises the following steps of positioning a steel pipe pile, 2. a parallel connection beam, 3. a pile cap, 4. an I-shaped steel beam, 5. a distribution beam, 6. a steel panel, 7. an upright post, 8. a bearing beam, 9. a water intake flower stand, 10. a water intake head, 11. a water guide pipe, 12. a river bank, 13. a water retaining facility, 14. a beam stand pipe, 15. a railing, 16. a sidewalk board, 17. a hoisting ring welding piece, 18. a chain block, 19. a canvas hoisting sling, 20. a roller, 21. a water guide pipe flower stand and 22. a vertical connection beam.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A facility for taking water in a rapid river bed is characterized by comprising a water conduit, a positioning steel pipe pile 1, a parallel connecting beam 2 parallel to the axis of the water conduit, a pile cap 3, an I-shaped steel cross beam 4, a distribution beam 5, a steel panel 6, an upright post 7, a bearing beam 8, a water taking head 10, a water taking head flower stand 9, a water retaining facility 13, a cross beam frame pipe 14, a railing 15, a sidewalk plate 16, a lifting ring welding piece 17, a hand chain block 18, a canvas lifting sling 19, a roller 20, a water conduit flower stand 21 and a vertical connecting beam 22 vertical to the axis of the water conduit; the water diversion pipe comprises a bell mouth and a straight line section, the water taking facility is used for taking river water in the center of a river through a water taking pipeline for domestic and production water, and is formed by combining a water taking head 10 and the water diversion pipe; establishing a water conduit truss working platform and a bell mouth assembly working platform by taking the 1 position of the positioning steel pipe pile as a support system, arranging a construction channel at the downstream of the truss platform for personnel to go up and down, installing I-shaped steel beams 4 on the tops of every three rows of vertical positioning steel pipe piles 1, and arranging two 10T chain blocks on each I-shaped steel beam to be used for bundling and hoisting pipelines; the method comprises the following steps of establishing a 14m multiplied by 5m steel truss platform as a water taking steel member welding and hoisting working platform by taking a positioning steel pipe pile position as a supporting system, wherein two portal-shaped supports are longitudinally arranged on the platform along the water flow direction of a water taking facility and are connected through bearing beams 8 and flower stands to form a frame structure, and two 20T hand chain hoists are arranged on each bearing beam and are used for hanging ring type hoisting of a water taking head; the water taking facilities connected into a whole are integrally lowered down to the falling groove by using the mooring crane and the chain block, so that the dry operation of assembling the water taking head and connecting the water guide pipe is realized.
The method comprises the following steps of drilling along with a pipe by using a piling ship with a drilling machine in a three-pipe two-drilling method, constructing small-diameter steel pipe positioning piles, arranging 5 rows of 6 rows of positioning steel pipe piles by using a water intake head, wherein the row spacing is 2.4m, 4.2m and 2.4m respectively, and the row spacing is 0.9 m; 3 rows of positioning steel pipe piles are arranged at the bell mouth of the water conduit and combined with a water intake head, wherein the row spacing is 4.2m, and the row spacing is 2.0 m; the straight line segment water guide pipes are arranged in 5 rows and 24 rows, the row spacing is 1.2m, 2.1m, 0.6m and 1.2m respectively, and the row spacing is 2.0 m; the steel pipe specification type is D168mm, the seamless T40 steel pipe of 8mm wall thickness, adopt the standard type to turn the wire sleeve into and lengthen, the depth of rock-socketed is 2.5 m-3 m, the steel pipe is intraductal to press and pour C30 fine aggregate concrete, form the concrete-filled steel pipe pile.
The pile cap 3 is welded and fixed on the top of the positioning steel pipe pile to provide a welding fixing and stress supporting surface for the main beam;
the distribution beam 5 is welded and fixed on the upper part of the I-shaped steel beam and forms a working platform of the water intake head through the steel panel assembly;
the upright post 7, the bearing beam 8 and the flower stand (water taking head part) are combined into a frame structure for water taking head hoisting in a welding mode;
the bearing beam 8 is welded and fixed on the top of the positioning steel pipe pile 1, and forms a door type structure with the positioning steel pipe pile to serve as a bearing structure for lifting the water diversion pipe (bell mouth and straight line section).
The positioning steel pipe piles are connected through a connecting beam (parallel to the axis of the water conduit), a connecting beam (vertical to the axis of the water conduit) and a flower shelf (a water conduit pipe part), so that the positioning steel pipe piles become a frame structure and the structural stability is enhanced;
wherein, the water conduit (bellmouth and straightway) is lifted by the chain block in a bag bottom binding type through a canvas lifting sling. The upper hook of the chain block is hooked on the hoisting ring weldment, and the bearing force is transmitted to the foundation through the door-shaped truss.
Wherein, the hoisting ring weldment 17 is welded and fixed on the lower edge of the bearing beam 8.
Wherein, the steel member of the water intake head 10 is welded and hoisted by a chain block and a mooring crane.
Wherein, the railing and the sidewalk plate are used for people to get on and off the downstream facility construction channel of the truss platform.
The detachable movable cross beam is arranged on each row of steel pipe positioning piles, and the detachable movable cross beam plays a role of bearing the weight of the pipeline and providing an operation platform during pipeline transportation and butt joint; play safety protection insurance effect when the pipeline is transferred, and every transfer 50cm needs to carry out fine tuning and measurement calibration, set up the cylinder on the crossbeam of 0.5m department from the surface of water in the middle for the pipe-line transportation, between two sections leading water pipes, for preventing that the steel pipe from taking place flexible deformation, it is fixed to add staple bolt or welding I-steel at two sections steel pipe junctions before carrying to the river.
The method also comprises the steps of hoisting the water conduit by using the chain block, sequentially conveying the water conduit from the bank side to the water taking head direction in the river, and configuring two winches to transport the water conduit to a specified position in a matching way. The dry operation that large-scale water intaking head is assembled and is connected with the leading pipe can be realized to and the whole of water intaking head and leading pipe collaborative operation transfers, can accelerate to realize the time limit for a project target and reduce safe risk.
The drilling method of the 'three-pipe two-drill' system comprises a guide pipe, a sleeve pipe and a drill rod, wherein the drill rod drills along the guide pipe, and a drill bit of a drilling machine is an eccentric drill. The operation process is as follows: (1) the method comprises the steps of (1) positioning a ship, firstly placing a guide pipe and then placing a casing, (2) according to the surface condition of a rock, if the surface condition is broken, firstly performing alloy drilling on the casing (an eccentric drill bit is slightly enlarged through a pressure-bearing rotary drill bit to be beneficial to follow-up of the casing), (3) after the alloy is drilled to complete bedrock, lifting a related drilling tool, (4) placing a drilling rod to perform impact rotary drilling to a designed bottom elevation, (5) measuring the hole depth, and if the hole depth is not deep enough, repeating the steps.
The integral installation and construction method of the facility for taking water from the torrent riverbed is characterized by comprising the following steps of:
(1): the barge and the drilling and blasting ship are used for constructing a double-row steel pipe truss single-wall water baffle in a step-by-step implementation mode of a steel truss and a steel panel, so that the water flow reduction speed in a construction area is reduced;
(2): performing simulated falling groove excavation on the water taking facility by using a drilling and blasting ship in an underwater deep hole blasting mode of blasting with a blast hole diameter of 90mm and a hole depth of more than 5m, row-to-row differential blasting and single-section explosive quantity control;
(3): the method comprises the following steps of drilling along with a pipe by using a piling ship with a drilling machine in a three-pipe two-drilling method, constructing small-diameter steel pipe positioning piles, arranging 5 rows of 6 rows of positioning steel pipe piles by using a water intake head, wherein the row spacing is 2.4m, 4.2m and 2.4m respectively, and the row spacing is 0.9 m; 3 rows of positioning steel pipe piles are arranged at the bell mouth of the water conduit and combined with a water intake head, wherein the row spacing is 4.2m, and the row spacing is 2.0 m; the straight line segment water guide pipes are arranged in 5 rows and 24 rows, the row spacing is 1.2m, 2.1m, 0.6m and 1.2m respectively, and the row spacing is 2.0 m;
(4): arranging a temporary wharf at the downstream bank of the temporary water truss, tying a 500-horsepower maneuvering boat and a wharf boat together for driving, transferring and hoisting a steel truss platform component by using the wharf boat and a floating crane as a water transportation platform, establishing a 14m multiplied by 5m steel truss platform as a welding and hoisting working platform of a water taking head steel component by using a steel pipe positioning pile as a supporting system, longitudinally arranging two portal-shaped supports on the platform along the water flow direction of a water taking facility, and configuring 6 hand-pulled chain blocks with 20 tons for hoisting operation;
(5): the method comprises the following steps of establishing a water conduit truss working platform and a bell mouth splicing working platform by utilizing a pontoon and a floating crane and taking a steel pipe positioning pile position as a supporting system, arranging a truss and an operating platform on the shore of a downstream facility construction channel of the truss platform for people to go up and down, arranging I-shaped steel beams on the tops of two rows of vertical steel pipe positioning piles, and arranging two 10T hand chain hoists on each beam to be used for bundling and hoisting pipelines;
(6): hoisting the water conduit by using a chain block, sequentially conveying the water conduit from the bank side to the water intake head direction in the river, and configuring two winches to transport the water conduit to a specified position in a matching way;
(7): the method comprises the following steps of transferring water intake head components by using a wharf boat as a transportation platform, numbering hanging pieces before hoisting, hoisting the water intake head steel components to the transportation boat parked at a temporary wharf in groups according to the number by using a 50T truck crane on the bank, enabling the transportation boat to run to the position close to a water intake head overwater operation platform, hoisting the water intake head steel components to the water intake head overwater operation platform by using a barge crane or a floating crane for assembling and splicing, and finely hoisting the components by using a configured 20T chain block after the components are transported to the platform;
(8): utilize and refute the boat crane, chain block will the leading water pipe, the horn mouth, the whole departure of water intaking head is to the above-water work platform face, then demolish the cylinder and the transverse connection component of leading water pipe truss, also demolish the work platform steel sheet and the vertical and horizontal connection component of water intaking portion, make behind the water intaking head steel case not having the barrier, will connect into the whole equal fast groove that drops of water intaking facility, one section distance is just demolishd the horizontal pole that hinders leading water pipe and transfer at every time of transferring, and connect the horizontal pole that leading water pipe upper portion has been demolishd immediately, ensure the structural stability of support, the repetition is in place until the groove that drops, accomplish the installation of water intaking facility.
Wherein: in the step (1), the double-row steel pipe truss single-wall water baffle is arranged at the position 8-10 m at the upstream of the water taking facility and goes deep into water, the length of the end is set to exceed the water taking head by not less than 10m so as to reduce the water flow velocity of the water taking head water construction area and eliminate the potential safety hazard of water baffle backflow to the water taking head construction, a ship anchor is arranged to anchor the water baffle through a steel wire rope, the water flow impact force is shared, and the lower part of the water flow is converted into the bending moment torsion force through the support pile of the steel truss so as to be transmitted to the foundation.
Wherein: the step (2) further comprises: the method is characterized in that a steel pipe for charging is followed by a drill bit of a drilling machine by adopting a three-pipe two-drilling method, so that a charging process is guided to the water surface from the water, the charging work can be completed only by sequentially charging from the top of the steel pipe on a ship, underwater diving charging is avoided, waiting is carried out for 15 minutes after detonation, a security worker and a blasting worker check an explosion area and process blind guns, underwater slag removal is carried out by adopting a dredger and an ultra-long arm excavator, and then an underwater camera and a terrain scanner are matched to inspect a foundation trench, so that the inspection and acceptance of the foundation trench in a deepwater river are realized.
Wherein: in the step (3): the steel pipe positioning pile is higher than the construction normal water level by not less than 2.2m, the steel pipe positioning pile is constructed by adopting a hydraulic drilling machine for geological exploration, two drilling machine drill bits are used as eccentric drilling machines, the specification model of the steel pipe is D168mm, the wall thickness of the seamless T40 steel pipe is 8mm, a standard internal turning thread sleeve is adopted for lengthening, the rock-socketed depth is 2.5 m-3 m, and C30 fine-stone concrete is pressure-poured into the steel pipe to form the steel pipe concrete pile.
Wherein: in the step (5): a detachable movable cross beam is arranged on each row of steel pipe positioning piles, and the detachable movable cross beams play a role of bearing the weight of the pipeline and providing an operation platform during pipeline transportation and butt joint; play safety protection insurance effect when the pipeline is transferred, and every transfer 50cm needs to carry out fine tuning and measurement calibration, set up the cylinder on the crossbeam of 0.5m department from the surface of water in the middle for the pipe-line transportation, between two sections leading water pipes, for preventing that the steel pipe from taking place flexible deformation, it is fixed to add staple bolt or welding I-steel at two sections steel pipe junctions before carrying to the river.
Wherein: in the step (8): before the whole body is sunk, sinking positioning marks and scales are manufactured, anti-collision and drowning rescue measures are implemented, a counter weight for preventing a water taking facility from floating upwards is arranged, a limiting device is arranged, hoisting points are reasonably arranged and hung in a trial mode, the performance of hoisting equipment is checked, and a diver can arrive at the post in place.
Wherein: further comprising the step (9): after sinking to the right place, a diver observes the contact condition of the water intake head and the water conduit with the foundation trench from the bottom, if a larger gap exists under the conduit, the diver lays and fills the C30 concrete blocks into flat blocks and then piles the formwork bag concrete and pours the C30 underwater concrete covered conduit.
Wherein: in the step (9), concrete in the underwater concrete pouring construction is doped with an underwater undispersed concrete flocculant.
Wherein: further comprising the step (10): and after the underwater concrete reaches the design strength, dismantling the steel truss platform and the water baffle, cutting off the steel pipe positioning pile, and recovering the river channel.
In the step (10), the truss platform above the water surface adopts a barge to provide an operation platform for gas cutting, and the underwater steel pipe positioning pile is cut by a diver by using a special underwater cutting strip.
Wherein, still include the step of retrieving the steel truss member and recycling.
The utility model relates to a water intaking facility integral erection construction method in torrent riverbed takes tangible effective measure in torrent riverbed, reduces the rivers deceleration in the construction area, avoids dive powder charge under water, and convenient solution water intaking facility's integral erection and acceptance check problem to can realize cyclic utilization.
The above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited to the above technical solution and only embodies the preferred technical solution of the present invention, and any person skilled in the art can easily think of the changes or substitutions in the technical scope of the present invention, which should be covered in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. A facility for taking water in an torrent riverbed is characterized by comprising a water conduit, a positioning steel pipe pile, a connecting beam parallel to the axis of the water conduit, a pile cap, an I-shaped steel beam, a distribution beam, a steel panel, an upright post, a bearing beam, a water taking head flower shelf, a water retaining facility, a beam frame pipe, a railing, a sidewalk plate, a lifting ring welding piece, a chain block, a canvas lifting sling, a roller, a water conduit flower shelf and a connecting beam vertical to the axis of the water conduit; the water intake facility is used for drawing river water in the center of a river through a water intake pipeline for domestic and production water and is formed by combining a water intake head and a water diversion pipe; establishing a water conduit truss working platform and a bell mouth assembly working platform by taking the positioning steel pipe pile position as a supporting system, arranging a construction channel at the downstream of the truss platform for personnel to go up and down, arranging I-shaped steel cross beams on the tops of every three rows of vertical positioning steel pipe piles, and arranging two 10T chain blocks on each I-shaped steel cross beam to be used for bundling and hoisting pipelines; the method comprises the following steps of establishing a 14m multiplied by 5m steel truss platform as a water taking steel member welding and hoisting working platform by taking a positioning steel pipe pile position as a supporting system, wherein two portal-shaped supports are longitudinally arranged on the platform along the water flow direction of a water taking facility and are connected through bearing beams and flower stands to form a frame structure, and two 20T hand chain hoists are arranged on each bearing beam and are used for hanging ring type hoisting of a water taking head; the water taking facilities connected into a whole are integrally lowered down to the falling groove by using the mooring crane and the chain block, so that the dry operation of assembling the water taking head and connecting the water guide pipe is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921201206.5U CN210315779U (en) | 2019-07-28 | 2019-07-28 | A facility that is used for water intaking in torrent riverbed |
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| CN201921201206.5U CN210315779U (en) | 2019-07-28 | 2019-07-28 | A facility that is used for water intaking in torrent riverbed |
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