CN110630007A - Large template structure for construction of hemispherical dome of nuclear power station and construction method - Google Patents
Large template structure for construction of hemispherical dome of nuclear power station and construction method Download PDFInfo
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- CN110630007A CN110630007A CN201910890123.XA CN201910890123A CN110630007A CN 110630007 A CN110630007 A CN 110630007A CN 201910890123 A CN201910890123 A CN 201910890123A CN 110630007 A CN110630007 A CN 110630007A
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/062—Forms for curved walls
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a large template structure and a construction method for construction of a hemispherical dome of a nuclear power station, wherein the large template structure comprises a hyperboloid arc-shaped large template and an operating platform, and the operating platform is fixedly arranged on the hyperboloid arc-shaped large template in a detachable mode; the hyperboloid arc-shaped large formwork comprises vertical steel braces, a main keel, secondary keels, lining plates, panels, hanging rings and the like. The large template structure can be manufactured and assembled in a workshop, and is directly installed in place on site through a crane, so that the time for building a scaffold and laying a gangboard on site is reduced, the construction efficiency is improved, and the construction period risk of the whole nuclear power station is reduced. Meanwhile, the large template structure can effectively guarantee safety and practicability, the design is easy to meet the requirement of construction precision, the number of templates in use can be reduced, splicing seams are reduced, and construction quality and turnover utilization rate are improved.
Description
Technical Field
The invention relates to construction technologies for manufacturing a construction template of a containment dome in a nuclear power station, erecting the template and the like, and belongs to the technical field of building construction.
Background
Aiming at a nuclear power project with an inner dome of a hemispherical structure, the construction progress of the inner dome is positioned on a main key line of nuclear island construction, the starting time of a subsequent prestressed system is directly influenced, and meanwhile, the tensioning and grouting quality of the prestressed system can also be influenced by the concrete construction quality of the inner dome. In the past, the construction of the hemispherical dome of a nuclear power project adopts a method of assembling small templates on site, so as to form an approximate arc surface, and the construction method has the following defects: 1) the number of required template blocks is large, a large number of template splicing seams exist on site, and more manpower is needed to adjust the template gap and reinforce the template; 2) the template has many abutted seams, so that the defects of concrete such as staggered seams and the like are easy to occur, and the apparent quality control of the concrete is not facilitated; 3) still need set up the scaffold operation platform of whole circle alone again after the template installation, the construction cycle is long, has also increased the safety risk.
Disclosure of Invention
The technical purpose of the invention is as follows: aiming at the defects in the traditional construction method, the construction method of the nuclear power station dome template is improved, and the novel large template structure for the construction of the nuclear power station hemispherical dome is designed, so that the quality defect of concrete can be reduced, the erection amount of scaffolds is reduced, and the construction period of the inner dome is shortened.
In order to achieve the technical purpose, the technical scheme provided by the invention is as follows:
a large template structure for construction of a hemispherical dome of a nuclear power station is characterized by comprising a hyperboloid arc-shaped large template and an operating platform, wherein the operating platform is fixedly arranged on the hyperboloid arc-shaped large template in a detachable mode;
the hyperboloid arc-shaped large formwork comprises vertical steel braces, a main keel, a secondary keel, a lining plate, a panel and a hanging ring, wherein the panel is a trapezoidal plate with a hyperboloid shape, and a preformed hole is formed in the panel;
the main keel, the secondary keel and the lining plate are all composed of a plurality of strip-shaped battens, the lining plate is fixedly arranged on the outer surface of the panel, the battens forming the lining plate are transversely arranged and vertically distributed along the panel, and a certain distance is kept between the upper and lower adjacent battens of the lining plate; the secondary keel is fixedly arranged on the outer surface of the lining plate, battens forming the secondary keel are vertically arranged and transversely distributed along the panel, and a certain distance is kept between the battens of the left and right adjacent secondary keels; the main keel is fixedly arranged on the outer surface of the secondary keel, battens forming the main keel are parallel to the lining plate, are transversely placed and are vertically distributed along the panel, the main keel, the secondary keel, the lining plate and the panel are fixed into a whole, the battens of the secondary keel and the battens of the lining plate cross over the opening area of the panel are disconnected at the opening area, and the battens of the main keel are laid to avoid the opening area of the panel;
the vertical steel back strap is made of channel steel and is fixed on the side face of a certain primary keel batten, and the hanging ring is fixed at the top end of the vertical steel back strap;
the operating platform is provided with a tripod and a protective railing, the tripod is composed of a first support frame and a second support frame which form a certain included angle, the first support frame is horizontally arranged and used for laying a wood springboard, and one end of the inner side of the first support frame is fixed on the steel backing strip; the bottom end of the second support frame is fixedly connected with the steel backing strip, the top end of the second support frame is fixedly connected with the first support frame, and the second support frame is obliquely supported below the first support frame; the guard rail is arranged outside the first support frame and fixedly connected with the outer end of the first support frame.
On the basis of the above scheme, a further improved or preferred scheme further comprises:
the double-curved-surface arc-shaped large formwork is fixed at an installation position to be constructed through a plurality of pull rods at different heights, one end of each pull rod arranged at the lower part of the double-curved-surface arc-shaped large formwork is fixedly connected with the steel backing strip, and the other end of each pull rod is connected to a cast concrete embedded cone below the formwork; one end of a pull rod arranged at the middle upper part of the hyperboloid arc-shaped large template is fixedly connected with the steel backing strip, and the other end of the pull rod is connected with the dome steel lining.
When the pull rod arranged at the middle upper part of the double-curved-surface arc-shaped large formwork cannot be connected to the dome steel lining, the U-shaped measure steel bars are arranged, the U-shaped measure steel bars are clamped on the horizontally arranged main structural ribs, the two ends of the opening of the U-shaped measure steel bars are welded on the steel ribs of the steel lining angle steel, the pull rod is sleeved on the main structural ribs through pull rings at the end parts, and the pull rod is perpendicular to the main structural ribs.
The transverse spacing between adjacent tension rods is generally not greater than 1000mm, and the longitudinal spacing is generally not greater than 1300 mm.
Preferably, the vertical steel backing strip is made of 12.6 channel steel, the main keel is made of battens with the cross section of 80 x 220mm, the secondary keel is made of battens with the cross section of 65 x 160mm, the lining plate is made of battens with the cross section of 25 x 100mm, and the panel is made of plywood with the thickness of 15 mm.
The vertical steel back belt is connected with the secondary keel battens through connecting bolts, the head portions of the connecting bolts are clamped on the bottom plate of the vertical steel back belt channel steel, the tail portions of the connecting bolts penetrate through the secondary keel battens and are locked through nuts, and steel lining plates are arranged between the nuts and the secondary keels.
A construction method of the semi-spherical dome of the nuclear power station based on the large template structure is characterized in that a construction form of a horizontal construction joint is adopted when concrete is poured, and a bottom die is made of a leakage-proof steel lining.
Has the advantages that:
the large template structure can be manufactured and assembled in a workshop, and is directly installed in place on site through a crane, so that the time for building a scaffold and laying a gangboard on site is reduced, the construction efficiency is improved, and the construction period risk of the whole nuclear power station is reduced. Meanwhile, the large template structure can effectively guarantee safety and practicability, and the design is easy to meet the requirement of construction precision, so that the using number of templates is reduced, namely splicing seams are reduced, and the construction quality and the turnover utilization rate are improved.
Drawings
FIG. 1 is a schematic structural diagram of a large hyperboloid arc formwork according to an embodiment;
FIG. 2 is a schematic sectional view taken along the line a-a in FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along the direction b-b in FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along the direction 1c-c in FIG. 1;
FIG. 5 is an enlarged view of JD1 in FIG. 4;
FIG. 6 is a schematic structural diagram of the operation platform;
FIG. 7 is a schematic view of the installation of a large formwork structure;
fig. 8 is an enlarged schematic view of a portion of the structure of fig. 7.
Detailed Description
In order to further clarify the technical solution of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In the embodiment, construction of a containment dome in a nuclear power station of hualong number one is taken as an example.
The Hualong I-shaped nuclear power inner dome is of a hemispherical structure, the elevation of the dome is from +41.130m to +70.480m, the inner diameter of the dome is 46.8 m, the inner height of the dome is 23.4 m, the inner side of the dome is provided with a steel lining, and the outer side of the dome is provided with a prestressed reinforced concrete structure with the thickness of 1050 mm. The large formwork structure is used for construction of the prestressed reinforced concrete structure.
The large formwork structure for the construction of the hemispherical dome of the nuclear power station as shown in fig. 1 to 8 comprises a hyperboloid arc-shaped large formwork, a detachable operating platform 9 and the like.
As shown in fig. 1, the hyperboloid arc-shaped large formwork comprises components such as a vertical steel back strap 1, a main keel 2, a secondary keel 3, a lining plate 4, a panel 5 and a plurality of hanging rings 6, wherein the main keel 2, the secondary keel 3, the lining plate 4 and the panel 5 are fixed into a whole through wood screws.
The panel 5 is a trapezoidal plate made of plywood with the thickness of 15mm, is in a hyperboloid shape adapting to a spherical shape, and is provided with reserved holes (ash discharging holes and vibrating holes) for distributing and vibrating.
The main keel 2, the secondary keel 3 and the lining plate 4 are all formed by a plurality of strip-shaped battens, the main keel 2 adopts battens with the cross sections of 80 x 220mm, the secondary keel 3 adopts battens with the cross sections of 65 x 160mm, and the lining plate 4 adopts battens with the cross sections of 25 x 100 mm.
The lining plates 4 are fixedly arranged on the outer surfaces of the panels 5, when the lining plates 4 are laid, the lining plate battens are horizontally laid along the vertical direction of the panels 5, a certain distance is kept between the upper adjacent lining plate battens and the lower adjacent lining plate battens, and the distance is generally controlled to be about 200 mm.
The secondary joist 3 is fixedly mounted on the outer surface of the lining plate 4, and when the secondary joist 3 is laid, the secondary joist battens are vertically placed along the transverse direction of the panel 5, and a certain distance is kept between the left and right adjacent secondary joist battens.
When the lining board battens and the secondary keel battens are laid, the lining board battens and the secondary keel battens are staggered with the rows and the columns of the vibrating holes, and the lining board battens and the secondary keel battens must cross the perforated area (compared with the lower mortar holes), so that the lining board battens and the secondary keel battens are disconnected at the perforated area, and the perforated area is prevented from being shielded.
When laying main joist 2, avoid the trompil region of panel 5 to two main joist flitches are a set of, transversely put three main joist flitches of group, press upper, middle, lower fixed mounting in proper order on secondary joist 3. The main keel battens are parallel to the lining battens, and the ash discharge holes are formed between the adjacent main keel groups.
The vertical steel braces 1 preferably adopt 12.6 channel steel, the vertical steel braces 1 are connected with the secondary keels 3 through connecting bolts 8, as shown in the figure, the vertical steel braces 1 are fixed on the side face of one side of a certain primary keel batten in a mode that the opening faces outwards, and one vertical steel brace 1 is arranged at intervals of a plurality of secondary keel battens. The gap between the channel steel rib plate of the vertical steel strap 1 and the lining plate 4 is filled with modeling wood, the head of the connecting bolt 8 is clamped on the bottom plate of the channel steel of the vertical steel strap 1, the tail of the connecting bolt penetrates through the other side of the secondary keel batten and is locked by a nut, and a steel lining plate 7 with the thickness of 10 (thickness) multiplied by 100 (length) multiplied by 100 (width) mm is further arranged between the nut and the secondary keel batten.
The lifting ring 6 is made of round steel with the diameter of 16mm and is fixed at the top end of the vertical steel strap 1 through welding.
The operating platform is provided with a tripod 9-1 and a protective railing 9-2, the tripod is composed of a first support frame and a second support frame which form a certain included angle, the first support frame is horizontally arranged and can be used for laying a wood springboard 9-3, workers can walk conveniently, and one end of the inner side of the first support frame is fixed on the vertical steel strap 1. The bottom end of the second support frame is fixedly connected with the steel backing strip 1, the top end of the second support frame is fixedly connected with the first support frame, and the second support frame is obliquely supported below the first support frame. The connecting points of the tripod 9-1 and the vertical steel braces 1 are connected by bolts, so that the disassembly is convenient. The protective barrier 9-2 is enclosed and blocked outside the first support frame and is fixedly connected with the outer end of the first support frame.
When the hyperboloid arc-shaped large formwork is installed, the hyperboloid arc-shaped large formwork is fixed on corresponding positions through a plurality of pull rods at different heights, the transverse distance between every two adjacent pull rods is not more than 1000mm, and the longitudinal distance between every two adjacent pull rods is not more than 1300 mm. One end of a pull rod arranged at the lower part of the hyperboloid arc-shaped large formwork is fixedly connected with a steel strap 1 in a locking way, and the other end of the pull rod is connected to a cast concrete embedded cone below the formwork; one end of a pull rod arranged at the middle upper part of the hyperboloid arc-shaped large template is fixedly connected with the steel braces 1 in a locking way, and the other end of the pull rod is connected with the dome steel lining. When the pull rod arranged at the middle upper part of the double-curved-surface arc-shaped large formwork cannot be directly connected to a dome steel lining, the U-shaped measure steel bars are arranged, the U-shaped measure steel bars are clamped on the structural main bars horizontally arranged, the two ends of the opening of the U-shaped measure steel bars are welded on steel ribs of steel lining angle steel, and the pull rod is sleeved on the structural main bars through pull rings 14 at the end parts, so that the pull rod is perpendicular to the structural main bars.
The process principle is as follows:
according to the construction method of the nuclear power station hemispherical dome based on the large template structure, firstly, the construction joint form perpendicular to the arc surface of the template is changed into a horizontal construction joint through a changing mode, the erection of a wire mesh template is omitted, then drawing software is used for accurate lofting, the configuration block number and the single block size of each layer of template of the dome are designed, the main template is the hyperboloid arc-shaped large template, the pouring height of each layer of concrete is reasonably distributed according to the size of the large template, and the requirement of the template between the adjacent layers for turnover use is met. And (3) arranging a lower ash hole and a vibrating hole in advance during the processing of the workshop template, and processing a corresponding plugging plate. After the large template is machined, an operation platform is directly installed in a workshop, and the operation platform can be formed by utilizing a containment shell simple template support in a transformation mode.
Carrying out large template installation by using a tower crane on site, and reinforcing the lower opening of the large template by using a cone and a pull rod which are pre-embedded in lower-layer concrete; the middle part and the upper part of the large template are reinforced on structural steel bars or measure steel bars through a high-strength pull rod and pull ring structure. When the templates are installed and received, the elevation of the upper opening and the section size of each large template are accurately controlled, and the fact that the elevation of the whole circle of construction joints is consistent and the surfaces of the joints are in smooth transition is guaranteed. After the large formwork is installed, the large formwork is directly formed by the operating platform, and the work of erecting a scaffold is reduced.
In the pouring process, after the concrete surface exceeds the position of the upper opening of the preformed hole, the corresponding lower mortar hole and the vibrating hole are blocked by using the blocking plate processed in advance, the pouring concrete is guaranteed not to overflow from the preformed hole, the appearance quality of the formed concrete is guaranteed, and backing battens are adopted to penetrate through keels on two sides of the preformed hole during blocking and are nailed tightly by nails and the keels. After the concrete strength reaches the requirement, can carry out the work of demolising of big template, every big template is whole demolishs, gets rid of the back with the pull rod of being connected between template and the concrete, utilizes the tower crane to hang open the monoblock template through rings in the template, and the handling is to template storage yard, and the template that will pull down in the storage yard in time clears up and repairs, has enough to meet the need the use.
The construction process comprises the following steps:
template configuration and model selection design, template manufacturing (workshop), template transportation and storage, inspection and cleaning before template erection, template measurement and positioning, template installation and reinforcement, template installation quality control acceptance, concrete pouring, ash hole and vibration hole plugging in the pouring process, template dismantling, repairing, cleaning and turnover use.
In this embodiment, according to the height of pouring of "hualong yi" nuclear power station inner dome, dispose inner dome template according to 3 layer interval design: 1 ~ 4 layers, 5 ~ 7 layers, 8 ~ 10 layers, along pouring the direction of height, the panel cambered surface length of 1 ~ 4 layers of big template in lower part is 2600mm, and 5 ~ 7 layers in middle part are 3300mm, 8 ~ 10 layers are 4540mm, through the simulation lofting, and the big template radius is the same, cambered surface length is the same in every position interval, and the big template in every position interval can have enough to meet the need the use.
The 1-4 layers of the configured templates comprise main templates, templates at buttress positions and template keys, the main templates can adopt hyperboloid arc-shaped templates, or original containment simple body templates are used for adding modeling battens to adjust the curved surface size of the templates for transformation, if the transformed templates are adopted, the template keys and the main templates are alternately arranged, the template keys are arranged between the two main templates, and the main templates are matched to adjust the curved surface radian and size.
5-7 layers of concrete surfaces tend to be gentle, template keys are only used at the positions of two sides of the buttress, and except the special-shaped angle molds arranged at the positions of the buttress, the hyperboloid arc-shaped large templates are all adopted for splicing;
8 ~ 10 design forms and the arrangement mode on layer are with 5 ~ 7 layers, and the gentle region of 10 th layer top surface does not dispose the template, and the light is received to the direct pressure face during concrete placement.
Practices prove that compared with the traditional construction technology, the construction technology of the invention not only reduces the installation quantity of the templates and the operation risk, but also ensures the pouring quality of concrete and reduces the concrete quality defects of a large number of slab staggering and the like, effectively utilizes the detachable operation platform to reduce the setting time and the safety risk of the scaffold, shortens the construction period and creates remarkable economic benefit and social benefit.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the foregoing description only for the purpose of illustrating the principles of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims, specification, and equivalents thereof.
Claims (7)
1. A large template structure for construction of a hemispherical dome of a nuclear power station is characterized by comprising a hyperboloid arc-shaped large template and an operating platform, wherein the operating platform is fixedly arranged on the hyperboloid arc-shaped large template in a detachable mode;
the hyperboloid arc-shaped large formwork comprises vertical steel braces (1), a main keel (2), secondary keels (3), lining plates (4), a panel (5) and hanging rings (6), wherein the panel (5) is a trapezoidal plate with a hyperboloid shape, and reserved holes are formed in the panel (5);
the main keel (2), the secondary keel (3) and the lining plate (4) are all composed of a plurality of strip-shaped battens, the lining plate (4) is fixedly installed on the outer surface of the panel (5), the battens forming the lining plate (4) are transversely placed and vertically distributed along the panel (5), and a certain distance is kept between the battens of the upper and lower adjacent lining plates; the secondary keel (3) is fixedly arranged on the outer surface of the lining plate (4), battens forming the secondary keel (3) are vertically arranged and transversely distributed along the panel (5), and a certain distance is kept between the left and right adjacent battens of the secondary keel; the main keel (2) is fixedly arranged on the outer surface of the secondary keel (3), battens forming the main keel (2) are parallel to the lining plate (4), transversely placed and vertically distributed along the panel (5), the main keel (2), the secondary keel (3), the lining plate (4) and the panel (5) are fixed into a whole, the batten and the lining plate batten cross over the opening area of the panel (5), the opening area is disconnected, and the laying of the main keel battens avoids the opening area of the panel (5);
the vertical steel braces (1) are made of channel steel and fixed on the side faces of one primary keel batten, and the hanging rings (6) are fixed at the top ends of the vertical steel braces (1);
the operating platform is provided with a tripod (9-1) and a protective railing (9-2), the tripod (9-1) is composed of a first support frame and a second support frame which form a certain included angle, the first support frame is horizontally arranged and used for laying a wood springboard (9-3), and one end of the inner side of the first support frame is fixed on the steel strap (1); the bottom end of the second support frame is fixedly connected with the steel strap (1), the top end of the second support frame is fixedly connected with the first support frame, and the second support frame is obliquely supported below the first support frame; the protective railing (9-2) is enclosed and blocked outside the first support frame and is fixedly connected with the outer end of the first support frame.
2. The large formwork structure for construction of the hemispherical dome of the nuclear power plant as claimed in claim 1, wherein the hyperboloid arc-shaped large formwork is fixed at an installation position to be constructed by a plurality of tie rods at different heights;
one end of a pull rod arranged at the lower part of the hyperboloid arc-shaped large formwork is fixedly connected with the steel braces (1), and the other end of the pull rod is connected to a cast concrete embedded cone below the formwork;
one end of a pull rod arranged at the middle upper part of the hyperboloid arc-shaped large template is fixedly connected with a steel strap (1), and the other end of the pull rod is connected with a dome steel lining.
3. The large formwork structure for construction of the hemispherical dome of the nuclear power plant as claimed in claim 2, wherein when the tie bars arranged at the middle and upper parts of the hyperboloid arc-shaped large formwork are not connected to the dome steel lining, U-shaped measure steel bars are arranged, the U-shaped measure steel bars are clamped on the horizontally arranged main structural bars, both ends of the opening of the U-shaped measure steel bars are welded on the steel ribs of the steel lining angle steel, the tie bars are sleeved on the main structural bars through pull rings (14) at the end parts, and the tie bars are perpendicular to the main structural bars.
4. The large formwork structure for construction of the hemispherical dome of the nuclear power plant as claimed in claim 2, wherein the transverse spacing between adjacent tie rods is not more than 1000mm, and the longitudinal spacing is not more than 1300 mm.
5. The large formwork structure for construction of the hemispherical dome of the nuclear power station as claimed in claim 1, wherein the vertical steel braces (1) adopt 12.6 channel steel, the main keels (2) adopt battens with the cross section of 80 x 220mm, the secondary keels (3) adopt battens with the cross section of 65 x 160mm, the lining plates (4) adopt battens with the cross section of 25 x 100mm, and the panels (5) adopt plywood with the thickness of 15 mm.
6. The large formwork structure for construction of the hemispherical dome of the nuclear power station as claimed in claim 1, wherein the vertical steel braces (1) are connected with the secondary joist battens through connecting bolts (8), the heads of the connecting bolts (8) are clamped on the bottom plate of the channel steel of the vertical steel braces, the tail parts of the connecting bolts pass through the secondary joist battens and are locked through nuts, and steel lining plates (7) are arranged between the nuts and the secondary joist battens.
7. A construction method of a semi-spherical dome of a nuclear power station based on a large template structure according to any one of claims 1 to 6, wherein a bottom die is made of a leakage-proof steel lining, and the construction form of a horizontal construction joint is adopted when concrete is poured.
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| CN201910890123.XA CN110630007A (en) | 2019-09-20 | 2019-09-20 | Large template structure for construction of hemispherical dome of nuclear power station and construction method |
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| CN201910890123.XA CN110630007A (en) | 2019-09-20 | 2019-09-20 | Large template structure for construction of hemispherical dome of nuclear power station and construction method |
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| CN115306150A (en) * | 2022-07-15 | 2022-11-08 | 中国一冶集团有限公司 | Construction method of multi-curved-surface dome |
| CN115324351A (en) * | 2022-08-18 | 2022-11-11 | 中国核工业华兴建设有限公司 | Concrete pouring method for closed SC structure module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306150A (en) * | 2022-07-15 | 2022-11-08 | 中国一冶集团有限公司 | Construction method of multi-curved-surface dome |
| CN115324351A (en) * | 2022-08-18 | 2022-11-11 | 中国核工业华兴建设有限公司 | Concrete pouring method for closed SC structure module |
| CN115324351B (en) * | 2022-08-18 | 2023-08-11 | 中国核工业华兴建设有限公司 | Concrete pouring method for closed SC structure module |
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Application publication date: 20191231 |