CN102121250A - Construction method of raft foundation reinforcing cage for containment vessel of nuclear power plant - Google Patents

Construction method of raft foundation reinforcing cage for containment vessel of nuclear power plant Download PDF

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Publication number
CN102121250A
CN102121250A CN 201110067801 CN201110067801A CN102121250A CN 102121250 A CN102121250 A CN 102121250A CN 201110067801 CN201110067801 CN 201110067801 CN 201110067801 A CN201110067801 A CN 201110067801A CN 102121250 A CN102121250 A CN 102121250A
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China
Prior art keywords
reinforcing cage
cage module
power plant
nuclear power
module
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CN 201110067801
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Chinese (zh)
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CN102121250B (en
Inventor
白明鑫
李家宝
赵超超
董占发
李忠诚
鲁勤武
郭俊营
张淑霞
陈金凤
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
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China General Nuclear Power Corp
China Nuclear Power Engineering Co Ltd
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Publication of CN102121250A publication Critical patent/CN102121250A/en
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Publication of CN102121250B publication Critical patent/CN102121250B/en
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Abstract

The invention relates to a construction method of a raft foundation reinforcing cage for a containment vessel of a nuclear power plant. The method comprises the following steps of: 1, binding steel bars outside a construction field to form a reinforcing cage module; 2, hoisting and transporting the reinforcing cage module to a containment vessel foundation pit in the construction field; and 3, finely adjusting the position of the reinforcing cage module in the containment vessel foundation pit, fixing the reinforcing cage module and binding steel bars outside the construction field to form a next reinforcing cage module for hoisting into the containment vessel foundation pit and laminating and fixing on the reinforcing cage module. The method has the advantages that: a single reinforcing cage module is bound outside the construction field, and the reinforcing cage module is hoisted, so that the aims of shortening the construction period and increasing the working efficiency can be fulfilled.

Description

The job practices of nuclear power plant containment shell raft foundation reinforcing cage
Technical field
The present invention relates to the realm of building construction, more particularly, relate to a kind of job practices of nuclear power plant containment shell raft foundation reinforcing cage.
Background technology
Along with energy growing tension, nuclear power is rapidly developed as the reliable energy.At present, traditional job practices is adopted in the construction of nuclear power plant containment shell raft foundation reinforcing cage, that is: foundation excavation is to design elevation, and the leveling cleaning is after acceptance(check), and the colligation base plate is carried out laterally, vertically and vertical reinforcement in the scene, carries out concrete cast at last.The workload of on-the-spot reinforcement fabrication of construction of hydropower and colligation is very big in this quasi-tradition job practices, and the scene of 5 layers of reinforced mesh is installed and taken the plenty of time, causes the construction period longer.The base plate construction is the basis of whole factory building, is a link of building operations key, directly influences the progress of containment and internal construction.Because base plate is positioned at-10.00 meters absolute altitudes, construction space is limited, has strengthened difficulty of construction, has reduced operating efficiency, becomes the bottleneck of conditioned response heap construction of hydropower progress.
Summary of the invention
The technical problem to be solved in the present invention is, traditional job practices is adopted in construction at nuclear power plant containment shell raft foundation reinforcing cage in the prior art, the defective that causes long, operating efficiency of construction period provides a kind of job practices of nuclear power plant containment shell raft foundation reinforcing cage, can the reduction of erection time.
The technical solution adopted for the present invention to solve the technical problems is: a kind of job practices of nuclear power plant containment shell raft foundation reinforcing cage may further comprise the steps:
S1: construction is carried out laid reinforcement binding outside the venue and is formed the reinforcing cage module;
S2: described reinforcing cage module is transported in the construction interior containment foundation ditch by lifting;
S3: carry out the fixing of described reinforcing cage module after finely tuning the position of described reinforcing cage module in described containment foundation ditch; Simultaneously, construction is carried out laid reinforcement binding outside the venue and is formed next reinforcing cage module so that lift to the containment foundation ditch and stack is fixed on the described reinforcing cage module.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferred, described step S1 specifically may further comprise the steps: the reinforcing bar transverse binding; The vertical colligation of reinforcing bar; Reinforcing bar laterally, vertically runs through a plurality of tubaeform provided pipes of formation mutually.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferred, the quantity of described tubaeform provided pipe is 144.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferably, described step S2 specifically may further comprise the steps: be respectively arranged with stiffener on the upper and lower end face of the described reinforcing cage module of S21 with the described reinforcing cage module of tighten, lock by bolt between the described stiffener; S22 is hooked on the suspender of crane on a plurality of anchor points of described stiffener so that the multiple spot of described reinforcing cage module is fixed; The described suspender multiple spot of S23 lifts described reinforcing cage module to a construction interior containment foundation ditch.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferred, the quantity of described anchor point is 100.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferably, described step S2 further may further comprise the steps: checked by the suspender to described crane before lifting in described reinforcing cage module, simulated test is carried out in the lifting of described reinforcing cage module.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferred, described step S3 specifically may further comprise the steps: finely tune described reinforcing cage module position, carry out carrying out after the rebar spacing adjustment of described reinforcing cage module the colligation of vertical reinforcement.
The job practices of a kind of nuclear power plant containment shell raft foundation of the present invention reinforcing cage, preferred, also comprise step S0: carry out the leveling and the cleaning of containment foundation ditch.
The present invention can reach following beneficial effect: by carrying out the colligation of single reinforcing cage module outside the venue in construction, then with reinforcing cage module hoisted in position, can reach the purpose that shortens the construction period, increases work efficiency.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the flow chart of the job practices of nuclear power plant containment shell raft foundation reinforcing cage of the present invention;
Fig. 2 is the operation chart of the job practices of nuclear power plant containment shell raft foundation reinforcing cage of the present invention;
Fig. 3 is a nuclear power plant containment shell raft foundation reinforcing cage module hoisting process reference diagram of the present invention;
Fig. 4 is the distribution schematic diagram of nuclear power plant containment shell raft foundation reinforcing cage module of the present invention;
Fig. 5 is the enlarged diagram of the I portion of Fig. 4;
Fig. 6 is the ruggedized construction partial schematic diagram of nuclear power plant containment shell raft foundation reinforcing cage module of the present invention.
Description of reference numerals
100, suspender 109, hoist cable
200, reinforcing cage module 201, stiffener
202, stiffener 203, bolt
204, fixed head 205, vertical reinforcement
206, oblique reinforcing bar 207, tubaeform provided pipe
208, shape steel bracket 209, transverse reinforcement in the steel lining
210, longitudinal reinforcement 300, suspension hook
400, crane
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, a kind of job practices of nuclear power plant containment shell raft foundation reinforcing cage may further comprise the steps: S1: carry out laid reinforcement binding outside the venue in construction and form reinforcing cage module 200; S2: reinforcing cage module 200 is transported in the construction interior containment foundation ditch by lifting, referring to Fig. 3, the suspension hook 300 of crane 400 is sling reinforcing cage module 200 by hook suspender 100 and transported, and is preferred, and crane 400 is positioned on construction and the central point of constructing outside the venue; S3: fine setting reinforcing cage module 200 is carried out the fixing of reinforcing cage module 200 behind the position in the containment foundation ditch, simultaneously, construction is carried out laid reinforcement binding outside the venue and is formed next reinforcing cage module 200 so that lift to the containment foundation ditch and stack is fixed on the reinforcing cage module 200.
The job practices of nuclear power plant containment shell raft foundation reinforcing cage describes with a specific embodiment, the number of plies of the reinforcing cage module 200 of containment raft foundation reinforcing cage can for 3 layers, 4 layers, 5 layers, 6 layers, more than 7 layers or 7 layers, every layer of reinforcing cage module 200 is positioned at different absolute altitude positions.As Fig. 2, shown in Figure 4, the absolute altitude of containment raft foundation lowermost layer is-10.000m, successively absolute altitude up be-8.800m ,-7.000m ,-6.200m ,-5.250m ,-4.500m etc., a plurality of reinforcing cage modules 200 are arranged on the different absolute altitude positions.As shown in Figure 2, at first in (that is: prefabricated place) the assembling reinforcement cage module 200 outside the venue of constructing, use suspender reinforcing cage module 200 lifting to be transported in the foundation ditch of containment raft foundation-10.000m absolute altitude place then, then (that is: scene) carries out the position adjustment and the positioning and fixing of reinforcing cage module 200 in construction, simultaneously in construction assembling reinforcement synchronously outside the venue to form next reinforcing cage module 200, new reinforcing cage module 200 colligations form back lifting and are transported in the foundation ditch-8.800m absolute altitude place, circulation successively, carry out the positioning and fixing of a last reinforcing cage module 200 in the construction field, the colligation of new reinforcing cage module 200 is carried out in construction simultaneously outside the venue, progressively build up the reinforcing cage module 200 of each different level, this form of construction work is the reduction of erection time greatly, improves the operating efficiency of construction.The number of plies that it should be noted that reinforcing cage module 200 among the present invention is not limited to 6 layers among among Fig. 24 layers and Fig. 4, and Fig. 2 and Fig. 4 just schematically point out wherein which floor reinforcing cage module 200.
Concrete, the step of ligation S1 of reinforcing cage module 200 specifically may further comprise the steps: the reinforcing bar transverse binding forms transverse reinforcement 209, and the vertical colligation of reinforcing bar forms longitudinal reinforcement 210; Reinforcing bar laterally, vertically runs through a plurality of tubaeform provided pipes 207 of formation mutually.Tubaeform provided pipe 207 is construction and installation of being convenient to later stage reinforcing cage module 200, referring to Fig. 5, and tubaeform provided pipe 207 tilting being applied in the reinforcing cage module 200.
For the construction of containment raft foundation, the installing and fixing of reinforcing cage module 200, preferred, the quantity of tubaeform provided pipe 207 is 144.
Deflection appears in the construction reinforcing cage module 200 of colligation moulding outside the venue easily in hoisting process, rock, good reinforcing bar deforms to cause colligation, the relative position of transverse reinforcement 209 and longitudinal reinforcement 210 misplaces, even phenomenons such as colligation fracture appear, this class phenomenon can have a strong impact on reinforcing cage module 200 quality, distortion and damage for fear of reinforcing cage module 200, reinforcing cage module 200 can be transported by lifting reposefully, step S2 specifically may further comprise the steps: be respectively arranged with stiffener 201 on the upper and lower end face of S21 reinforcing cage module 200,202 with tighten reinforcing cage module 200, stiffener 201, lock by bolt 203 between 202, concrete reinforcement as shown in Figure 6, be set with fixed head 204 on the stiffener 201, the hoist cable 109 of suspender 100 lower ends is hooked on the fixed head 204; S22 is hooked on the suspender of crane on a plurality of anchor points of stiffener so that the multiple spot of reinforcing cage module 200 is fixed, and the even distribution in many lifting points can guarantee the stability of reinforcing cage module 200 in hoisting process; S23 suspender multiple spot lifting reinforcing cage module 200 is to a construction interior containment foundation ditch.
For the hoist cable that guarantees suspender stressed evenly, thereby constitute a stable stressed structure system, preferred, the quantity of anchor point is 100.
Except technique scheme, in order to guarantee safety and the reliability of suspender in hoisting process, step S2 further may further comprise the steps: before reinforcing cage module 200 is by lifting the suspender of crane is checked, simulated test is carried out in the lifting of reinforcing cage module 200.
Concrete, the reinforcing cage module 200 that lifting puts in place need be carried out that the later stage is adjusted and be fixing, and step S3 specifically may further comprise the steps: fine setting reinforcing cage module 200 positions, carry out carrying out after the rebar spacing adjustment of reinforcing cage module 200 colligation of vertical reinforcement 205.The colligation of vertical reinforcement 205 can improve the steadiness of whole reinforcing cage module 200, and simultaneously, colligation vertical reinforcement 205 can be the stack location of next reinforcing cage module 200 on reinforcing cage module 200.Stack between each layer reinforcing cage module 200 is installed as shown in Figure 4, reinforcing cage module 200 is positioned at different level, and the absolute altitude of A layer, B layer, C layer, D layer, E layer, F layer is respectively-10.000m ,-8.800m ,-7.000m ,-6.200m ,-5.250m ,-4.500m.Reinforcing cage module 200 mutual superposition is successively installed, and is provided with shape steel bracket 208 in the steel lining, oblique reinforcing bar 206 further reinforced steel cage modules 200 between the adjacent reinforcing cage module 200.
Preferably, also comprise step S0 in the present embodiment: carry out the leveling and the cleaning of containment foundation ditch.The cleaning of containment foundation ditch can be convenient to be in the location of the reinforcing cage module 200 of bottom absolute altitude.
In conjunction with the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.

Claims (8)

1. the job practices of a nuclear power plant containment shell raft foundation reinforcing cage is characterized in that: may further comprise the steps:
S1: construction is carried out laid reinforcement binding outside the venue and is formed the reinforcing cage module;
S2: described reinforcing cage module is transported in the construction interior containment foundation ditch by lifting;
S3: carry out the fixing of described reinforcing cage module after finely tuning the position of described reinforcing cage module in described containment foundation ditch; Simultaneously, construction is carried out laid reinforcement binding outside the venue and is formed next reinforcing cage module so that lift to the containment foundation ditch and stack is fixed on the described reinforcing cage module.
2. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 1 is characterized in that, described step S1 specifically may further comprise the steps: the reinforcing bar transverse binding; The vertical colligation of reinforcing bar; Reinforcing bar laterally, vertically runs through a plurality of tubaeform provided pipes of formation mutually.
3. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 2 is characterized in that, the quantity of described tubaeform provided pipe is 144.
4. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 1, it is characterized in that, described step S2 specifically may further comprise the steps: be respectively arranged with stiffener on the upper and lower end face of the described reinforcing cage module of S21 with the described reinforcing cage module of tighten, lock by bolt between the described stiffener; S22 is hooked on the suspender of crane on a plurality of anchor points of described stiffener so that the multiple spot of described reinforcing cage module is fixed; The described suspender multiple spot of S23 lifts described reinforcing cage module to a construction interior containment foundation ditch.
5. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 4 is characterized in that, the quantity of described anchor point is 100.
6. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 5, it is characterized in that, described step S2 further may further comprise the steps: checked by the suspender to described crane before lifting in described reinforcing cage module, simulated test is carried out in the lifting of described reinforcing cage module.
7. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 1, it is characterized in that described step S3 specifically may further comprise the steps: finely tune described reinforcing cage module position, carry out carrying out after the rebar spacing adjustment of described reinforcing cage module the colligation of vertical reinforcement.
8. the job practices of nuclear power plant containment shell raft foundation reinforcing cage according to claim 1 is characterized in that, also comprises step S0: carry out the leveling and the cleaning of containment foundation ditch.
CN 201110067801 2011-03-21 2011-03-21 Construction method of raft foundation reinforcing cage for containment vessel of nuclear power plant Active CN102121250B (en)

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CN102121250B CN102121250B (en) 2013-05-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790384A (en) * 2014-02-21 2014-05-14 国核工程有限公司 Modular binding method for steel bars of main steam pipeline penetration pieces of nuclear island auxiliary plant
CN105569384A (en) * 2015-12-15 2016-05-11 中广核工程有限公司 Arrangement structure of single-pile nuclear island main workshop of nuclear power station
CN113202312A (en) * 2021-05-25 2021-08-03 四川公路桥梁建设集团有限公司 Horizontal full-automatic mechanical binding equipment and binding method for reinforcing steel bars

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10299001A (en) * 1997-04-24 1998-11-10 Toda Constr Co Ltd Building method for structural portion of underground beam
EP1253253A2 (en) * 2001-04-25 2002-10-30 Oceans Engineering Limited A method of making a foundation
CN201176598Y (en) * 2007-12-28 2009-01-07 浙江环宇建设集团有限公司 Foundation slab reinforced bar caging over subway tunnel
CN101929249A (en) * 2010-08-10 2010-12-29 中铁一局集团有限公司 Double line stream-line type round end entity pier cap steel bar overall binding construction method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10299001A (en) * 1997-04-24 1998-11-10 Toda Constr Co Ltd Building method for structural portion of underground beam
EP1253253A2 (en) * 2001-04-25 2002-10-30 Oceans Engineering Limited A method of making a foundation
CN201176598Y (en) * 2007-12-28 2009-01-07 浙江环宇建设集团有限公司 Foundation slab reinforced bar caging over subway tunnel
CN101929249A (en) * 2010-08-10 2010-12-29 中铁一局集团有限公司 Double line stream-line type round end entity pier cap steel bar overall binding construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《施工技术》 20090818 杨忠勇等 红沿河核电站反应堆厂房筏基A、B层整浇施工技术 , 第08期 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790384A (en) * 2014-02-21 2014-05-14 国核工程有限公司 Modular binding method for steel bars of main steam pipeline penetration pieces of nuclear island auxiliary plant
CN105569384A (en) * 2015-12-15 2016-05-11 中广核工程有限公司 Arrangement structure of single-pile nuclear island main workshop of nuclear power station
CN113202312A (en) * 2021-05-25 2021-08-03 四川公路桥梁建设集团有限公司 Horizontal full-automatic mechanical binding equipment and binding method for reinforcing steel bars

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Address after: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District

Co-patentee after: CHINA GENERAL NUCLEAR POWER Corp.

Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd.

Address before: 518023 No. 69 Shennan Middle Road, Shenzhen, Guangdong, Futian District

Co-patentee before: CHINA GUANGDONG NUCLEAR POWER GROUP Co.,Ltd.

Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd.

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