CN114592739B - Semi-assembled ultra-deep superposed water storage tank and construction process - Google Patents
Semi-assembled ultra-deep superposed water storage tank and construction process Download PDFInfo
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- CN114592739B CN114592739B CN202210281573.0A CN202210281573A CN114592739B CN 114592739 B CN114592739 B CN 114592739B CN 202210281573 A CN202210281573 A CN 202210281573A CN 114592739 B CN114592739 B CN 114592739B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000003860 storage Methods 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 182
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 116
- 239000010959 steel Substances 0.000 claims abstract description 116
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 41
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 230000002787 reinforcement Effects 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
- E04H7/18—Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Working Measures On Existing Buildindgs (AREA)
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Abstract
The invention relates to a semi-assembled ultra-deep superposed water storage pool and a construction process, wherein the semi-assembled ultra-deep superposed water storage pool comprises a prefabricated UHPC inner wall plate positioned at the innermost side, and an outer template is supported at the outermost side of the inner wall plate; the UHPC inner wall plates are connected into a UHPC inner wall plate assembly with rectangular or circular cross section through anchor cables; the periphery of the UHPC inner wall plate is uniformly provided with section steel, and the section steel and the UHPC inner wall plate are integrated or have a detachable structure; a reinforcement cage is bound between the outer side of the section steel and the outer template; concrete is poured between the UHPC inner wall plate and the outer template to form an SRC outer wall plate; the tail end of the UHPC inner wall plate is poured into a reinforced concrete bottom plate, and a post-pouring groove is formed in the reinforced concrete bottom plate; the bottom of the reinforced concrete bottom plate is provided with a concrete cushion layer, and the reinforced concrete bottom plate and the concrete cushion layer form a UHPC-SRC superposed water storage pool together. The invention has the outstanding advantages of high lateral bearing capacity, good crack resistance, high rigidity, strong corrosion resistance, good durability and large capacity, and is particularly suitable for storing liquid with strong corrosiveness.
Description
Technical Field
The invention belongs to the technical field of underground water storage, and particularly relates to a semi-assembled ultra-deep superposed water storage tank and a construction process.
Background
At present, with the rapid development of urban progress in China, urban population is rapidly increased, living standard of people is remarkably improved, living water consumption and industrial and agricultural water consumption are gradually improved, and accordingly, water discharge is greatly increased, particularly sewage in many industrial and agricultural production and daily life cannot be discharged at will, and short-term or long-term storage is needed. For this reason, it is urgent to construct a large number of water supply and drainage facilities, which makes the construction projects of municipal sewage treatment plants and water supply plants increasingly larger. The water pool is one of the most important structures in water treatment structures, and such structures require high bearing capacity and good impermeability and durability in addition to being particularly reinforced in structural construction to ensure long-term normal use of the structure. With the increasing of the capacity and the scale of the water tank, in the structural design of ultra-deep, ultra-long and large-capacity sewage treatment tanks, the water tank structure and components can be ensured to have the performances of good bending (shearing) resistance bearing capacity, rigidity, ductility, stability, durability and the like. The plane shape of the water storage tank mainly has two forms of a circle and a rectangle, the circular water tank is in a state of being pulled by the axle center or being pressed by the axle center in the circumferential direction under the action of water pressure in the water tank or soil pressure outside the water tank, and is in a state of being bent in the vertical direction, so that the stress is relatively uniform; the rectangular pool wall is a stretch bending or press bending component mainly bent, and the thickness of the pool wall is always larger than that of the round pool under the same capacity, so that the rectangular pool has strong adaptability to the site topography, thereby being convenient for saving the land and reducing the earth volume excavated in the site.
In terms of the current design and use conditions, the construction of the water pool is mainly cast-in-place concrete, and the cast-in-place reinforced concrete construction technology is widely used in various water pool engineering constructions, but the construction technology is difficult to control and the concrete engineering quantity is large due to the limited size, the long construction period, the large consumption of manpower, material force, machines and tools and the like, the cost is high, and the management of the construction site is difficult. Particularly, as the capacity of the water tank is developed in a large direction, the land contradiction is aggravated, the traditional reinforced concrete water tank is difficult to meet the development requirement of the modern society, and the large ultra-deep and ultra-long water tank is required, so that the structure type of the traditional various water tank structure forms is required to be updated, and the design performance is more excellent.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a semi-assembled ultra-deep superposed water storage tank and a construction process.
A semi-assembled ultra-deep superposed water storage tank comprises an innermost UHPC inner wall plate, wherein the UHPC inner wall plate is a prefabricated plate, and an outer template is supported at the outermost side of the UHPC inner wall plate; the plurality of UHPC inner wall plates are connected into a UHPC inner wall plate assembly with a rectangular or circular cross section through anchor cables; the steel sections are uniformly distributed around the UHPC inner wall plate, and the steel sections and the UHPC inner wall plate are of an integral structure or a detachable structure; a reinforcement cage is bound between the outer side of the section steel and the outer template; concrete is poured between the UHPC inner wall plate and the outer template to form an SRC outer wall plate, so that a side wall plate of the whole water storage tank is formed; a post-pouring groove is formed in the reinforced concrete bottom plate, and the tail end of the UHPC inner wall plate is poured into the reinforced concrete bottom plate; the reinforced concrete bottom plate is paved on the concrete cushion layer.
The steel section and the UHPC inner wall plate are of an integrated structure, a plurality of pin connecting pieces are welded on one flange of the steel section along the height direction, the other ends of the pin connecting pieces are embedded in the UHPC inner wall plate, and the UHPC inner wall plate is an inner wall plate with H-shaped steel.
The steel section and the UHPC inner wall plate are of a detachable structure, a plurality of connecting holes are reserved on one flange of the steel section along the height direction, embedded bolts corresponding to the connecting holes are embedded in the UHPC inner wall plate, and the detachable connection of the UHPC inner wall plate and the H-shaped steel is realized through the embedded bolts and the connecting holes.
When the plurality of UHPC inner wall plates are connected into the UHPC inner wall plate assembly with the rectangular cross section through the anchor cable, the cross section of the UHPC inner wall plate is L-shaped.
When the plurality of UHPC inner wall plates are connected into the UHPC inner wall plate assembly with the circular cross section through the anchor cable, the cross section of the UHPC inner wall plate is arc-shaped.
The end part of the UHPC inner wall plate is provided with a reserved groove for connecting anchor cables between adjacent UHPC inner wall plates.
And a water stop steel plate is pre-buried on the end face of the end part of the UHPC inner wall plate.
The construction process of the semi-assembled ultra-deep superposed water storage tank specifically comprises the following steps of:
Step one: preparing the structural size and materials;
Step two: cleaning a site, paving a reinforced concrete bottom plate and a concrete cushion layer, and making a pool wall foundation;
step three: and (3) manufacturing profile steel: the steel section and the UHPC inner wall plate are of an integrated structure, and the stud connecting piece is welded on one flange of the H-shaped steel to manufacture the H-shaped steel with the stud connecting piece; the steel section and the UHPC inner wall plate are of a detachable structure, and one flange of the H-shaped steel is provided with a connecting hole for connecting the embedded bolt to manufacture the H-shaped steel with the connecting hole;
step four: preparing longitudinal steel bars and stirrups to manufacture a steel bar framework, and binding the longitudinal steel bars and the stirrups to form the steel bar framework;
Step five: prefabricating UHPC inner wall plates: prefabricating an UHPC inner wall plate in a factory according to design requirements, arranging a reserved groove at the end part of the UHPC inner wall plate, and pre-burying a water stop steel plate at the end face;
The steel section and the UHPC inner wall plate are of an integrated structure, and a welding stud connecting piece on one flange of the H-shaped steel is directly embedded into the UHPC inner wall plate, so that the H-shaped steel and the UHPC inner wall plate are integrated to form the UHPC inner wall plate with the H-shaped steel;
The section steel and the UHPC inner wall plate are of a detachable structure, and the embedded bolts are embedded in the UHPC inner wall plate;
step six: installing UHPC inner wall plates: sequentially hoisting a plurality of prefabricated UHPC inner wall plates with H-shaped steel or embedded bolts to a design position, and connecting the adjacent UHPC inner wall plates together by using anchor cables;
Step seven: mounting the UHPC inner wall plate and the reinforced concrete bottom plate:
The steel section and the UHPC inner wall plate are of an integrated structure, the bottom of the prefabricated UHPC inner wall plate is coated with adhesive glue and inserted into a post-pouring groove reserved by the reinforced concrete bottom plate, fine stone concrete is poured in the post-pouring groove, and the installation of the UHPC inner wall plate and the reinforced concrete bottom plate is completed;
The steel sections and the UHPC inner wall plates are of detachable structures, the bottoms of the prefabricated UHPC inner wall plates are coated with adhesive glue and inserted into post-pouring grooves reserved in the reinforced concrete bottom plates, H-shaped steel is arranged around the outer periphery of the installed UHPC inner wall plates and uniformly distributed around the UHPC inner wall plates, the H-shaped steel is connected with the UHPC inner wall plates by utilizing embedded bolts, fine stone concrete is poured in the post-pouring grooves, and the installation of the UHPC inner wall plates and the reinforced concrete bottom plates is completed;
Step eight: hoisting the steel reinforcement framework bound in the fourth step to the outer side of the UHPC inner wall plate; if no binding exists in the step four, binding a reinforcement cage on the outer side of the UHPC inner wall plate in the step;
Step nine: installing an outer template;
Step ten: and pouring concrete between the outer template and the UHPC inner wallboard to form the UHPC-SRC superposed water storage pool.
The beneficial effects of the invention are as follows:
1. The UHPC inner wall plate is prefabricated by adopting Ultra-high performance concrete (UHPC, ultra-High Performance Concrete), and the Ultra-high performance concrete has excellent water resistance, high toughness and durability and is suitable for the thin-wall pool structure.
2. The water tank provided by the invention is semi-assembled, the UHPC inner wall plate is manufactured in a factory or in a different place and transported to a construction site, and the prefabricated UHPC inner wall plate is processed and assembled by a construction unit on site, so that the prefabricated UHPC water tank inner structure is formed, and the bending rigidity and bending bearing capacity of the side wall of the ultra-deep water tank are improved.
3. In the semi-assembled ultra-deep superposed water storage tank provided by the invention, the profile steel is uniformly distributed around the prefabricated UHPC inner wall plate, the outer template is supported at the outermost side, the reinforcement cage is bound between the outer template and the UHPC inner wall plate, and then concrete is poured to form SRC (reinforced concrete structure) outer wall plates so as to form the superposed water tank.
Drawings
Fig. 1 is a schematic view of a rectangular semi-assembled ultra-deep superposition water storage tank provided in embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a circular semi-assembled ultra-deep collapsible reservoir according to embodiment 2 of the present invention;
FIG. 4 is a section B-B of FIG. 3;
FIG. 5 is a schematic illustration of the manner in which the H-section steel is bolted to the inner wall plate of the UHPC in a semi-assembled ultra-deep superposed water tank;
FIG. 6 is a schematic diagram of the connection mode of H-shaped steel and pre-buried bolts of an inner wall plate of a UHPC in a semi-assembled ultra-deep superposed water storage tank;
wherein,
The concrete slab comprises a 1-UHPC inner wall plate, a 2-SRC outer wall plate, 3-longitudinal steel bars, 4-stirrups, 5-H-shaped steel, 6-anchor cables, 7-reserved grooves, 8-water stop steel plates, 9-stud connectors, 10-embedded bolts, 11-post-pouring grooves, 12-reinforced concrete bottom plates and 13-concrete cushion layers.
Detailed Description
For better explanation of the present invention, for easy understanding, the technical solution and effects of the present invention will be described in detail below by way of specific embodiments with reference to the accompanying drawings.
Example 1
A semi-assembled ultra-deep superposed water storage pool comprises an innermost UHPC inner wall plate 1, wherein the UHPC inner wall plate 1 is a prefabricated plate, and an outer template is supported at the outermost side of the prefabricated plate; the number of the UHPC inner wall plates 1 is a plurality, the structures are identical, as shown in fig. 1-2, the cross sections of the UHPC inner wall plates 1 in the embodiment are L-shaped, and the UHPC inner wall plates are connected into a UHPC inner wall plate assembly with a rectangular cross section through anchor ropes 6. The UHPC inner wall plate 1 is uniformly distributed with steel sections around, and in the embodiment, the steel sections are H-shaped steel 5,H, and the length direction of the steel sections is consistent with the height direction of the water storage tank. In this embodiment, the H-shaped steel 5 and the UHPC inner wall plate 1 are of an integral structure, a plurality of pin connectors 9 are welded on one flange of the H-shaped steel 5 along the height direction, the other ends of the pin connectors 9 are embedded in the UHPC inner wall plate 1, and the UHPC inner wall plate 1 is an inner wall plate with the H-shaped steel 5. And a steel reinforcement framework is bound between the outer side of the H-shaped steel 5 and the outer template, and is formed by binding longitudinal steel bars 3 and stirrups 4. Concrete is poured between the UHPC inner wall plate 1 and the outer formwork to form an SRC outer wall plate 2, so that a side wall plate of the whole water storage pool is formed. A post-pouring groove 11 is formed in the reinforced concrete bottom plate 12, and the tail end of the UHPC inner wall plate 1 is poured into the reinforced concrete bottom plate 12; the reinforced concrete bottom plate 12 is paved on the concrete cushion layer 13 to jointly form the UHPC-SRC superposed water storage pool.
The end part of the UHPC inner wall plate 1 is provided with a reserved groove 7 for connecting anchor cables 6 between the adjacent UHPC inner wall plates 1.
The end face of the end part of the UHPC inner wall plate 1 is pre-embedded with a water stop steel plate 8.
The construction process of the semi-assembled ultra-deep superposed water storage tank specifically comprises the following steps of:
step one: the structural dimensions and material preparation. And determining the height, width and length of the whole wall plate of the water pool according to actual requirements, and determining the strength grade of the concrete.
Step two: the site is cleaned and a reinforced concrete floor 12 and a concrete cushion 13 are laid. And (5) removing the residue soil at the side wall of the supporting water storage tank according to the designed position, and making a tank wall foundation.
Step three: and (5) manufacturing the profile steel. According to the design requirement, the pin connecting piece 9 is welded on one flange of the H-shaped steel 5, and the H-shaped steel 5 with the pin connecting piece 9 is manufactured.
Step four: longitudinal rebars 3 and stirrups 4 are prepared to make the reinforcement cage. According to the design requirement, binding the reinforcement cage of the overlapping pool, and binding the longitudinal reinforcement 3 and the stirrup 4 to form the reinforcement cage.
Step five: the UHPC inner wall panel 1 is prefabricated. Prefabricating an UHPC inner wall plate 1 in a factory according to design requirements, arranging a reserved groove 7 at the end part of the UHPC inner wall plate 1, and pre-burying a water stop steel plate 8 at the end surface; the welded stud connector 9 on one flange of the H-section steel 5 is directly embedded in the UHPC inner wall plate 1, so that the H-section steel 5 and the UHPC inner wall plate 1 are integrated into a whole, and the UHPC inner wall plate 1 with the H-section steel 5 is formed as shown in fig. 5.
Step six: the UHPC inner wall panel 1 is installed. A plurality of prefabricated UHPC inner wall panels 1 with H-section steel 5 are hoisted to the design position in sequence, and adjacent UHPC inner wall panels 1 are connected together by anchor cables 6.
Step seven: the UHPC inner wall plate 1 is mounted with the reinforced concrete bottom plate 12. And (3) fully coating adhesive glue on the bottom of the prefabricated UHPC inner wall plate 1, inserting the adhesive glue into a post-pouring groove 11 reserved by the reinforced concrete bottom plate 12, pouring fine stone concrete in the post-pouring groove 11, and finishing the installation of the UHPC inner wall plate 1 and the reinforced concrete bottom plate 12.
Step eight: hoisting the steel reinforcement framework bound in the fourth step to the outer side of the UHPC inner wall plate 1; if no binding is performed in the step four, binding the steel reinforcement framework outside the UHPC inner wall plate 1 in the step.
Step nine: and (5) installing an outer template. And (5) erecting a bracket of the outer template according to design requirements, and fixing the outer template.
Step ten: concrete is poured between the outer template and the UHPC inner wallboard 1 to form a UHPC-SRC superposed water storage pool.
Example 2
A semi-assembled ultra-deep superposed water storage pool comprises an innermost UHPC inner wall plate 1, wherein the outermost side of the UHPC inner wall plate 1 is an outer template, and the UHPC inner wall plate 1 is a precast slab; the number of the UHPC inner wall plates 1 is a plurality, the structures are identical, as shown in fig. 3-4, the cross sections of the plurality of UHPC inner wall plates 1 in the embodiment are arc-shaped, and the UHPC inner wall plates are connected through anchor cables 6 to form a UHPC inner wall plate assembly with a circular cross section. The UHPC inner wall plate 1 is uniformly distributed with steel sections around, and in the embodiment, the steel sections are H-shaped steel 5,H, and the length direction of the steel sections is consistent with the height direction of the water storage tank. In this embodiment, the H-shaped steel 5 and the UHPC inner wall plate 1 are of a detachable structure, a plurality of connecting holes are reserved on one flange of the H-shaped steel 5 along the height direction, embedded bolts 10 corresponding to the connecting holes are embedded in the UHPC inner wall plate 1, and the detachable connection of the UHPC inner wall plate 1 and the H-shaped steel 5 is realized through the embedded bolts 10 and the connecting holes. And a steel reinforcement framework is bound between the outer side of the H-shaped steel 5 and the outer template, and is formed by binding longitudinal steel bars 3 and stirrups 4. Concrete is poured between the UHPC inner wall plate 1 and the outer formwork to form an SRC outer wall plate 2, so that a side wall plate of the whole water storage pool is formed. The UHPC inner wall plate 1 is poured into a reinforced concrete bottom plate 12, and a post-pouring groove 11 is formed in the reinforced concrete bottom plate 12; in the embodiment, the pouring tail end of the H-shaped steel 5 is poured in the reinforced concrete bottom plate 12; the reinforced concrete bottom plate 12 is paved on the concrete cushion layer 13 to jointly form the UHPC-SRC superposed water storage pool.
The end part of the UHPC inner wall plate 1 is provided with a reserved groove 7 for connecting anchor cables 6 between the adjacent UHPC inner wall plates 1.
The end face of the end part of the UHPC inner wall plate 1 is pre-embedded with a water stop steel plate 8.
The construction process of the semi-assembled ultra-deep superposed water storage tank specifically comprises the following steps of:
step one: the structural dimensions and material preparation. And determining the height, width and length of the whole wall plate of the water pool according to actual requirements, and determining the strength grade of the concrete.
Step two: the site is cleaned and a reinforced concrete floor 12 and a concrete cushion 13 are laid. And (5) removing the residue soil at the side wall of the supporting water storage tank according to the designed position, and making a tank wall foundation.
Step three: and (5) manufacturing the profile steel. According to the design requirement, a connecting hole for connecting the embedded bolts 10 is formed in one flange of the H-shaped steel 5, and the H-shaped steel 5 with the connecting hole is manufactured.
Step four: longitudinal rebars 3 and stirrups 4 are prepared to make the reinforcement cage. According to the design requirement, binding the reinforcement cage of the overlapping pool, and binding the longitudinal reinforcement 3 and the stirrup 4 to form the reinforcement cage.
Step five: the UHPC inner wall panel 1 is prefabricated. Prefabricating an UHPC inner wall plate 1 in a factory according to design requirements, arranging a reserved groove 7 at the end part of the UHPC inner wall plate 1, and pre-burying a water stop steel plate 8 at the end surface; the embedded bolts 10 are embedded in the UHPC inner wall panel 1 as shown in fig. 6.
Step six: the UHPC inner wall panel 1 is installed. The UHPC inner wall plates 1 pre-embedded with the pre-embedded bolts 10 are sequentially hoisted to the design position, and the adjacent UHPC inner wall plates 1 are connected together by the anchor cables 6.
Step seven: the UHPC inner wall plate 1 is mounted with the reinforced concrete bottom plate 12. The bottom of the prefabricated UHPC inner wall plate 1 is coated with adhesive glue and inserted into a post-pouring groove 11 reserved by a reinforced concrete bottom plate 12, H-shaped steel 5,H is distributed around the installed UHPC inner wall plate 1 uniformly around the UHPC inner wall plate 1, the H-shaped steel 5 is connected with the UHPC inner wall plate 1 by utilizing embedded bolts 10, fine stone concrete is poured in the post-pouring groove 11, and the installation of the UHPC inner wall plate 1 and the reinforced concrete bottom plate 12 is completed.
Step eight: hoisting the steel reinforcement framework bound in the fourth step to the outer side of the UHPC inner wall plate 1; if no binding is performed in the step four, binding the steel reinforcement framework outside the UHPC inner wall plate 1 in the step.
Step nine: and (5) installing an outer template. And (5) erecting a bracket of the outer template according to design requirements, and fixing the outer template.
Step ten: concrete is poured between the outer template and the UHPC inner wallboard 1 to form a UHPC-SRC superposed water storage pool.
Claims (6)
1. A semi-assembled super deep coincide tank, its characterized in that: the UHPC inner wall plate is a precast slab, and an outer template is supported at the outermost side of the precast slab; the plurality of UHPC inner wall plates are connected into a UHPC inner wall plate assembly with a rectangular or circular cross section through anchor cables; the end part of the UHPC inner wall plate is provided with a reserved groove for the connection of anchor cables between the adjacent UHPC inner wall plates; a water stop steel plate is pre-buried on the end face of the end part of the UHPC inner wall plate; the steel sections are uniformly distributed around the UHPC inner wall plate, and the steel sections and the UHPC inner wall plate are of an integral structure or a detachable structure; a reinforcement cage is bound between the outer side of the section steel and the outer template; concrete is poured between the UHPC inner wall plate and the outer template to form an SRC outer wall plate, so that a side wall plate of the whole water storage tank is formed; a post-pouring groove is formed in the reinforced concrete bottom plate, and the tail end of the UHPC inner wall plate is poured into the reinforced concrete bottom plate; the reinforced concrete bottom plate is paved on the concrete cushion layer.
2. A semi-assembled ultra-deep superposition tank according to claim 1, and wherein: the steel section and the UHPC inner wall plate are of an integrated structure, a plurality of pin connecting pieces are welded on one flange of the steel section along the height direction, the other ends of the pin connecting pieces are embedded in the UHPC inner wall plate, and the UHPC inner wall plate is an inner wall plate with H-shaped steel.
3. A semi-assembled ultra-deep superposition tank according to claim 1, and wherein: the steel section and the UHPC inner wall plate are of a detachable structure, a plurality of connecting holes are reserved on one flange of the steel section along the height direction, embedded bolts corresponding to the connecting holes are embedded in the UHPC inner wall plate, and the detachable connection of the UHPC inner wall plate and the H-shaped steel is realized through the embedded bolts and the connecting holes.
4. A semi-assembled ultra-deep superposition tank according to claim 1, and wherein: when the plurality of UHPC inner wall plates are connected into the UHPC inner wall plate assembly with the rectangular cross section through the anchor cable, the cross section of the UHPC inner wall plate is L-shaped.
5. A semi-assembled ultra-deep superposition tank according to claim 1, and wherein: when the plurality of UHPC inner wall plates are connected into the UHPC inner wall plate assembly with the circular cross section through the anchor cable, the cross section of the UHPC inner wall plate is arc-shaped.
6. The construction process of the semi-assembled ultra-deep superposition water storage tank as claimed in any one of claims 1-5, which is characterized by comprising the following steps:
Step one: preparing the structural size and materials;
Step two: cleaning a site, paving a reinforced concrete bottom plate and a concrete cushion layer, and making a pool wall foundation;
step three: and (3) manufacturing profile steel: the steel section and the UHPC inner wall plate are of an integrated structure, and the stud connecting piece is welded on one flange of the H-shaped steel to manufacture the H-shaped steel with the stud connecting piece; the steel section and the UHPC inner wall plate are of a detachable structure, and one flange of the H-shaped steel is provided with a connecting hole for connecting the embedded bolt to manufacture the H-shaped steel with the connecting hole;
step four: preparing longitudinal steel bars and stirrups to manufacture a steel bar framework, and binding the longitudinal steel bars and the stirrups to form the steel bar framework;
Step five: prefabricating UHPC inner wall plates: prefabricating an UHPC inner wall plate in a factory according to design requirements, arranging a reserved groove at the end part of the UHPC inner wall plate, and pre-burying a water stop steel plate at the end face;
The steel section and the UHPC inner wall plate are of an integrated structure, and a welding stud connecting piece on one flange of the H-shaped steel is directly embedded into the UHPC inner wall plate, so that the H-shaped steel and the UHPC inner wall plate are integrated to form the UHPC inner wall plate with the H-shaped steel;
The section steel and the UHPC inner wall plate are of a detachable structure, and the embedded bolts are embedded in the UHPC inner wall plate;
step six: installing UHPC inner wall plates: sequentially hoisting a plurality of prefabricated UHPC inner wall plates with H-shaped steel or embedded bolts to a design position, and connecting the adjacent UHPC inner wall plates together by using anchor cables;
Step seven: mounting the UHPC inner wall plate and the reinforced concrete bottom plate:
The steel section and the UHPC inner wall plate are of an integrated structure, the bottom of the prefabricated UHPC inner wall plate is coated with adhesive glue and inserted into a post-pouring groove reserved by the reinforced concrete bottom plate, fine stone concrete is poured in the post-pouring groove, and the installation of the UHPC inner wall plate and the reinforced concrete bottom plate is completed;
The steel sections and the UHPC inner wall plates are of detachable structures, the bottoms of the prefabricated UHPC inner wall plates are coated with adhesive glue and inserted into post-pouring grooves reserved in the reinforced concrete bottom plates, H-shaped steel is arranged around the outer periphery of the installed UHPC inner wall plates and uniformly distributed around the UHPC inner wall plates, the H-shaped steel is connected with the UHPC inner wall plates by utilizing embedded bolts, fine stone concrete is poured in the post-pouring grooves, and the installation of the UHPC inner wall plates and the reinforced concrete bottom plates is completed;
Step eight: hoisting the steel reinforcement framework bound in the fourth step to the outer side of the UHPC inner wall plate; if no binding exists in the step four, binding a reinforcement cage on the outer side of the UHPC inner wall plate in the step;
Step nine: installing an outer template;
Step ten: and pouring concrete between the outer template and the UHPC inner wallboard to form the UHPC-SRC superposed water storage pool.
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