WO2015188694A1 - 一种地下核电站大件吊装运输方法 - Google Patents

一种地下核电站大件吊装运输方法 Download PDF

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WO2015188694A1
WO2015188694A1 PCT/CN2015/079881 CN2015079881W WO2015188694A1 WO 2015188694 A1 WO2015188694 A1 WO 2015188694A1 CN 2015079881 W CN2015079881 W CN 2015079881W WO 2015188694 A1 WO2015188694 A1 WO 2015188694A1
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combined
nuclear power
nuclear
construction
cavern
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PCT/CN2015/079881
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English (en)
French (fr)
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李锋
苏利军
杨学红
华夏
王曙东
丁福珍
喻飞
苏毅
张国强
谢实宇
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长江勘测规划设计研究有限责任公司
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Application filed by 长江勘测规划设计研究有限责任公司 filed Critical 长江勘测规划设计研究有限责任公司
Priority to RU2017100926A priority Critical patent/RU2655088C1/ru
Priority to JP2017517167A priority patent/JP6431601B2/ja
Publication of WO2015188694A1 publication Critical patent/WO2015188694A1/zh
Priority to US15/376,586 priority patent/US10544014B2/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/02—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries collapsible
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/01—General aspects of mobile cranes, overhead travelling cranes, gantry cranes, loading bridges, cranes for building ships on slipways, cranes for foundries or cranes for public works
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements

Definitions

  • the invention relates to the technical field of nuclear engineering, in particular to a method for hoisting and transporting large parts of underground nuclear power plants.
  • the underground is mainly nuclear islands, including nuclear reactor building caverns, nuclear auxiliary building caverns, safe factory caverns, nuclear fuel plant caverns, etc.
  • Large equipment such as ring crane girders, reactor pressure vessels, steam generators, voltage regulators and main coolant pumps, and containment dome linings are arranged in the room, which not only need to be transported in smaller underground passages, but also The hoisting is completed in a limited underground space. In this case, the conventional ground nuclear power plant bulk transport and hoisting methods cannot be implemented, and only new measures are taken to deal with them.
  • the object of the present invention is to overcome the deficiencies of the above background art and to provide a method for hoisting and transporting large underground nuclear power plants, which satisfies the hoisting and transportation requirements of large-scale equipment of commercial underground nuclear power plants.
  • the invention provides a method for hoisting and transporting large-scale underground nuclear power plants, comprising the following steps: Step 1: When the nuclear reactor building is built into the rock anchor beam layer, the concrete is poured, and after the concrete reaches the age to form the rock anchor beam, the concrete is passed. The hanging shaft at the top of the nuclear reactor building cavern is hoisted into the circular construction bridge machine, and the circular construction bridge machine is installed on the rock anchor beam through the car crane; Step 2: continue the construction of the nuclear reactor building cavern and complete the excavation work, using the ring The construction bridge machine carries out the installation of the safety shell cylinder and the endless crane rail beam until the installation is completed.
  • the gantry crane hanging from one end of the end of the circular crane is hoisted into the hoisting crane shaft and sent into the nuclear reactor building cavern, and the ring construction bridge machine is used.
  • Hanging the other end of the ring crane girders with the cooperation of the gantry crane and the ring-shaped construction bridge machine, make the ring crane big
  • the beam is from vertical to horizontal and is mounted on the toroidal crane rail beam;
  • Step 3 Using the ring crane rail beam and the ring crane girder as the support points for the mounting bracket of the safety shell dome steel lining, will be processed
  • the safety shell dome steel lining piece is hoisted from the hanging shaft into the nuclear reactor building cavern, and is assembled and assembled on the mounting tire frame;
  • Step 4: The equipment connected to the nuclear reactor building cavern is connected to each permanent large equipment in the nuclear reactor
  • the transportation channel is transported to the safety shell, and then the ring crane girders are used to turn over and hoist to the working area.
  • the construction of the combined cavern is carried out at the same time as the construction of the first step.
  • the bridge crane is installed by the car crane to the upper leg of the combined cavern arranged along the length direction.
  • the main traffic hole is used to transport the nuclear power auxiliary equipment to the installation platform on one side or one end of the combined cavern, and finally the nuclear power auxiliary equipment is hoisted to the working area through the plant bridge machine.
  • the construction of the combined cavity is carried out simultaneously with the construction of the second step.
  • the bridge crane is installed by the automobile crane to the upper leg of the combined cavity arranged along the length direction.
  • the main traffic hole is used to transport the nuclear power auxiliary equipment to the installation platform on one side or one end of the combined cavern, and finally the nuclear power auxiliary equipment is hoisted to the working area through the plant bridge machine.
  • the construction of the combined cavern is carried out at the same time as the construction of the third step.
  • the bridge crane is installed by the car crane to the upper leg of the combined cavern arranged along the length direction.
  • the main traffic hole is used to transport the nuclear power auxiliary equipment to the installation platform on one side or one end of the combined cavern, and finally the nuclear power auxiliary equipment is hoisted to the working area through the plant bridge machine.
  • the construction of the combined cavern is carried out at the same time as the construction of the step 4.
  • the bridge crane is installed by the car crane to the upper leg of the combined cavern arranged along the length direction.
  • the main traffic hole is used to transport the nuclear power auxiliary equipment to the installation platform on one side or one end of the combined cavern, and finally the nuclear power auxiliary equipment is hoisted to the working area through the plant bridge machine.
  • the construction of the combined cavern is carried out simultaneously with the construction of the first step to the fourth step.
  • the bridge crane is installed by the automobile crane to the cattle arranged along the length direction in the upper part of the combined cavern.
  • the nuclear power auxiliary equipment is then transported to the installation platform on one side or one end of the combined cavern by the main traffic hole, and finally the nuclear power auxiliary equipment is hoisted to the working area through the factory bridge machine.
  • step 5 performing the construction of the combined cavern, and after the excavation of the combined cavern is completed, the bridge crane is installed by the automobile crane to the beef leg arranged along the length direction in the upper part of the combined cavity, and then utilized.
  • the main traffic hole transports the nuclear power auxiliary equipment to the installation platform on one side or one end of the combined cavern, and finally the nuclear power through the plant bridge machine Auxiliary equipment is hoisted to the work area.
  • the combined cavern comprises a nuclear auxiliary building cavern arranged in a "one" shape along the length direction, two safety building caverns and a nuclear fuel plant cavern, wherein the nuclear auxiliary building cavern, a safety The plant cavern, the nuclear fuel plant cavern and the other safe plant cavern are connected in sequence, and the nuclear auxiliary plant cavern, the two safe house caverns and the nuclear fuel plant cavern are respectively connected to the main traffic hole, and the nuclear auxiliary plant hole
  • the outer end surface of the chamber and one side of the nuclear fuel plant cavern are respectively provided with mounting platforms connected to the main traffic hole.
  • the large-sized hoisting and transporting method of the underground nuclear power plant of the invention has the following beneficial effects: the technical problem of lifting and transporting large-sized equipment in the underground cavern of the large underground nuclear power plant is solved reasonably and conveniently.
  • Figure 1 is a schematic view showing the structure of a large-scale hoisting and transporting method of an underground nuclear power plant in a nuclear reactor building;
  • Figure 2 is a schematic diagram showing the structure of a large-scale hoisting and transportation method for underground nuclear power plants required for the nuclear house of the nuclear reactor building, taking the nuclear fuel plant cavern as an example;
  • FIG. 3 is a schematic structural view of a transportation arrangement mode of an underground nuclear power plant involved in a large-sized hoisting and transportation method for an underground nuclear power plant according to the present invention
  • FIG. 4 is a schematic view showing the process flow of a large-sized hoisting and transporting method for an underground nuclear power plant according to the present invention.
  • the method for hoisting and transporting large underground nuclear power plants of the present invention relates to a nuclear reactor building cavern 1, a hanging shaft 2, a nuclear reactor 3, a ring crane beam 4, a gantry crane (not shown), and a containment dome steel.
  • Lining 5 ring-shaped construction bridge machine 6, automobile crane (not shown), safety shell cylinder 7, combined cavern, installation platform 11, factory bridge machine 12, main traffic tunnel 13, equipment transportation channel 14, rock Anchor beam 15 and toroidal crane track beam 18.
  • the combined cavity is disposed along the depth direction of the mountain, and the nuclear reactor building chamber 1 and the main traffic hole 13 are respectively disposed on two sides of the combined cavity.
  • the nuclear reactor building chamber 1 is respectively disposed on two sides perpendicular to the depth direction of the mountain body, and is respectively provided with an electrical house cavity 16 and a pressure relief hole chamber 17, and the electrical house cavity 16 is vertically arranged in the depth direction of the mountain body.
  • the combined cavity includes a nuclear auxiliary building chamber 8 arranged in a "one" shape along the length direction, and two safety building holes a chamber 9 and a nuclear fuel plant cavern 10, wherein a nuclear auxiliary plant cavern 8, a safety plant cavern 9, a nuclear fuel plant cavern 10 and another safe plant cavern 9 are connected in sequence, and the nuclear auxiliary plant cavern 8, Two safety plant chambers 9 and nuclear fuel plant chambers 10 are respectively connected to the main traffic hole 13, and the outer end surface of the nuclear auxiliary plant chamber 8 and one side of the nuclear fuel plant chamber 10 are respectively connected to the main traffic hole 13 Installation platform 11.
  • the method for hoisting and transporting large parts of an underground nuclear power plant of the present invention comprises the following steps:
  • step one When the nuclear reactor building cavern 1 is applied to the rock anchor beam layer, the concrete is poured. After the concrete reaches the age to form the rock anchor beam 15, the crane shaft 2 is suspended from the top of the nuclear reactor building. The ring-shaped construction bridge machine 6 is installed, and the ring-shaped construction bridge machine 6 is installed on the rock anchor beam 15 by the automobile crane. This is because the nuclear reactor building cavern 1 has a high elevation, and if the nuclear reactor building cavern 1 is completely constructed, the installation is completed. The circular construction bridge machine 6 requires a long length of the car suspension boom, and it is difficult to reach this length in general car cranes.
  • the nuclear reactor building chamber 1 is also easy to operate in a relatively confined space, and the installation of the lifting shaft 2 not only makes full use of the hoisting equipment on the ground, but also does not occupy the underground space too much. ;
  • Step 2 Continue the construction of the nuclear reactor building chamber 1 and complete the excavation work, and install the safety casing cylinder 7 and the annular crane rail beam 18 by the annular construction bridge machine 6 until the installation is completed, the safety casing cylinder 7 and the ring shape
  • the transportation of the crane rail beam 18 is completed by the equipment transport passage 14.
  • the gantry crane hanging from the end of the end of the ring crane beam 4 is hoisted into the hoisting crane shaft 2 and sent into the nuclear reactor building cavern 1 and used to form a circular construction bridge.
  • the machine 6 suspends the other end of the ring crane beam 4, and with the cooperation of the gantry crane and the ring-shaped construction bridge machine 6, the ring crane girder 4 is placed from the vertical state to the horizontal position, and is mounted on the ring crane rail beam 18, due to the safety shell
  • the body 7 has been installed, so it is difficult to complete the construction of the ring crane beam 4 through the equipment transport passage 14.
  • the safety shell dome steel lining 5 is not capped, and the ring crane beam 4 is hoisted through the hanging shaft 2 Entering the nuclear reactor building cavern 1 not only makes full use of the relatively open nuclear reactor building cavern 1 upper space, but also directly utilizes the newly installed ring construction 6 machine to avoid additional costs of construction equipment and time to speed up the progress of the project, reducing the cost of production;
  • Step 3 Using the ring crane rail beam 18 and the ring crane beam 4 as the supporting support points of the mounting bracket of the safety shell dome steel lining 5, the processed safety shell dome steel lining 5 pieces from the lifting shaft 2 Hanging into a nuclear reactor plant In the chamber 1 and on the mounting frame, the pieces are welded and assembled. Because the space inside the nuclear reactor building 1 is limited, it is impossible to guarantee the construction site as well as the ground nuclear power plant. Only the existing components and space are used as the Force support point, and on this basis, the split welding assembly of the safety shell dome steel liner 5;
  • Step 4 transporting each permanent large equipment in the nuclear reactor 3 to the containment vessel 7 through the equipment transport passage 14 connected to the nuclear reactor building chamber 1 by passing these permanent large equipment through the large flatbed (not shown in the figure) And transported to the equipment gate of the containment cylinder 7 (not shown) along the rails disposed on the equipment transport passage 14, and then transported into the containment cylinder 7 through the equipment gate and placed into the containment cylinder 7
  • the ring crane girders 4 are used to turn over and hoist to the working position. Since each permanent large equipment in the nuclear reactor 3 must wait until the containment steel lining 5 is capped, it can be installed. It is possible to continue lifting with the hanging shaft 2, so that only the equipment transport passage 14 can be fully utilized for lifting and transporting through the equipment gate and the working platform in the containment cylinder 7;
  • the fuel plant cavern 10 is taken as an example to illustrate the fifth step: the construction of the combined cavern, the electrical building cavern 16 and the pressure relief cavern 17 is performed, and the combined cavern, the electrical building cavern 16 and the pressure relief cavern are used.
  • the plant bridge machine 12 is installed on the cattle legs arranged along the length direction in the upper part of the combined cavern by the automobile crane, and then the nuclear power auxiliary equipment is transported to the side or end of the combined cavern by the main traffic hole 13 On the installation platform 11, finally, the nuclear power auxiliary equipment is hoisted to the working area through the factory bridge machine 12. Since the length of the combined cavity is long, the crane hoist can fully utilize this feature to install and construct the factory bridge machine 12. It is not subject to the space limitation of the nuclear reactor building 1 in the pre-order step.
  • step 5 can also be carried out simultaneously with the construction of step 1, step two, step three or step four, or simultaneously with the construction of step one, step two, step three and step four.
  • the invention fully utilizes the existing equipment in the large underground nuclear power plant, combines the characteristics of the underground space and the underground construction, and solves the technical problem of hoisting transportation of the large-scale equipment in the underground cavern of the large underground nuclear power plant reasonably and conveniently, and provides the construction of the underground space. A new idea.

Abstract

一种地下核电站大件吊装运输方法，包括：步骤一、进行核反应堆厂房洞室（1）的岩锚梁（15）施工，通过吊物竖井（2）吊入环形施工桥机（6）并安装到岩锚梁（15）上；步骤二、完成核反应堆厂房洞室（1）开挖，安装安全壳筒体（7）和环形吊车轨道梁（18），龙门吊向吊物竖井（2）吊入环形吊车大梁（4），在龙门吊和环形施工桥机（6）的配合下将环形吊车大梁（4）安装到环形吊车轨道梁（18）上；步骤三、利用环形吊车轨道梁（18）和环形吊车大梁（4）受力支撑点，将安全壳穹顶钢里衬（5）分片从吊物竖井（2）吊入核反应堆厂房洞室（1）内，并分片焊接拼装；步骤四、将永久大型设备通过设备运输通道（14）运至安全壳筒体（7）内，利用环形吊车大梁（4）进行翻身及吊装。该运输方法满足了商业地下核电站大型设备的吊装运输需求，广泛应用于核工程技术领域。

Description

一种地下核电站大件吊装运输方法 技术领域
本发明涉及核工程技术领域，特别是涉及一种地下核电站大件吊装运输方法。
背景技术
我国在“十二五”能源规划中提出要加快推进核电建设。然而在日本福岛核事故的影响下，刚从切尔诺贝利阴影中走出的全球核电产业又陷入了低谷。有鉴于此，国家对核电项目的审批更加严格和慎重，对核电厂提出了更高的安全性要求。针对这种情况，将地面核电站全部或核岛部分置于地下的地下核电站布置方式将为核电发展提供了新的思路。
根据目前我国研究的商业地下核电站洞室群的结构特点，布置在地下主要为核岛部分，包括核反应堆厂房洞室、核辅助厂房洞室、安全厂房洞室、核燃料厂房洞室等，在这些洞室中，分别布置有环形吊车大梁、反应堆压力容器、蒸汽发生器、稳压器和主冷却剂泵、安全壳穹顶钢里衬等大型设备，不仅需要在尺寸较小的地下通道运输，还要在有限的地下空间内完成吊装，在这种情况下，常规的地面核电站大件运输和吊装方法无法实施，只有探寻新的措施来应对。
发明内容
本发明的目的是为了克服上述背景技术的不足，提供一种地下核电站大件吊装运输方法，满足了商业地下核电站大型设备的吊装运输需求。
本发明提供的一种地下核电站大件吊装运输方法，包括如下步骤：步骤一：当核反应堆厂房洞室施工到岩锚梁层时进行混凝土的浇筑，待混凝土达到龄期形成岩锚梁后，通过核反应堆厂房洞室顶部的吊物竖井吊入环形施工桥机，并通过汽车吊将环形施工桥机安装到岩锚梁上；步骤二：继续核反应堆厂房洞室的施工并完成开挖工作，利用环形施工桥机进行安全壳筒体和环形吊车轨道梁的安装直至完成安装，通过吊住环形吊车大梁一端的龙门吊向吊物竖井吊入环形吊车大梁并送入核反应堆厂房洞室内，利用环形施工桥机吊住环形吊车大梁的另一端，在龙门吊和环形施工桥机的配合下，使环形吊车大 梁由竖直状态直至水平，并安装到环形吊车轨道梁上；步骤三：利用环形吊车轨道梁和环形吊车大梁作为安全壳穹顶钢里衬的安装胎架的受力支撑点，将加工好的安全壳穹顶钢里衬分片从吊物竖井吊入核反应堆厂房洞室内，并在安装胎架上分片焊接拼装；步骤四：将核反应堆内的各个永久大型设备通过与核反应堆厂房洞室相连的设备运输通道运至安全壳筒体内，再利用环形吊车大梁进行翻身以及吊装到工作区位。
在上述技术方案中，按步骤一施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞将核电辅助设备运到位于组合洞室一侧或一端的安装平台上，最后通过厂房桥机将核电辅助设备吊装到工作区位。
在上述技术方案中，按步骤二施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞将核电辅助设备运到位于组合洞室一侧或一端的安装平台上，最后通过厂房桥机将核电辅助设备吊装到工作区位。
在上述技术方案中，按步骤三施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞将核电辅助设备运到位于组合洞室一侧或一端的安装平台上，最后通过厂房桥机将核电辅助设备吊装到工作区位。
在上述技术方案中，按步骤四施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞将核电辅助设备运到位于组合洞室一侧或一端的安装平台上，最后通过厂房桥机将核电辅助设备吊装到工作区位。
在上述技术方案中，按步骤一至步骤四施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞将核电辅助设备运到位于组合洞室一侧或一端的安装平台上，最后通过厂房桥机将核电辅助设备吊装到工作区位。
在上述技术方案中，步骤五：进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞将核电辅助设备运到位于组合洞室一侧或一端的安装平台上，最后通过厂房桥机将核电 辅助设备吊装到工作区位。
在上述技术方案中，所述组合洞室包括沿长度方向呈“一”字布置的核辅助厂房洞室、两个安全厂房洞室和核燃料厂房洞室，其中，核辅助厂房洞室、一个安全厂房洞室、核燃料厂房洞室和另一个安全厂房洞室依次相连，所述核辅助厂房洞室、两个安全厂房洞室和核燃料厂房洞室分别与主交通洞相连，所述核辅助厂房洞室的外端面和核燃料厂房洞室的一侧分别设有与主交通洞相连的安装平台。
本发明地下核电站大件吊装运输方法，具有以下有益效果：合理方便得解决了大型地下核电站中大件设备在地下洞室内的吊装运输技术难题。
附图说明
图1为在核反应堆厂房洞室中与地下核电站大件吊装运输方法相关的结构示意图；
图2为以核燃料厂房洞室为例说明除核反应堆厂房洞室的其他核岛厂房洞室所需的地下核电站大件吊装运输方法相关的结构示意图；
图3为本发明地下核电站大件吊装运输方法所涉及的地下核电站运输布置方式的结构示意图；
图4为本发明地下核电站大件吊装运输方法的工艺流程示意图。
具体实施方式
下面结合附图及实施例对本发明作进一步的详细描述，但该实施例不应理解为对本发明的限制。
参见图1至图4，本发明地下核电站大件吊装运输方法，涉及核反应堆厂房洞室1、吊物竖井2、核反应堆3、环形吊车大梁4、龙门吊(图中未示出)、安全壳穹顶钢里衬5、环形施工桥机6、汽车吊(图中未示出)、安全壳筒体7、组合洞室、安装平台11、厂房桥机12、主交通洞13、设备运输通道14、岩锚梁15和环形吊车轨道梁18。
参见图3，所述组合洞室沿山体纵深方向设置，所述组合洞室两侧分别设有核反应堆厂房洞室1和主交通洞13。所述核反应堆厂房洞室1垂直于山体纵深方向的两侧分别设有电气厂房洞室16与卸压洞室17，所述电气厂房洞室16垂直山体纵深方向布置。
所述组合洞室包括沿长度方向呈“一”字布置的核辅助厂房洞室8、两个安全厂房洞 室9和核燃料厂房洞室10，其中，核辅助厂房洞室8、一个安全厂房洞室9、核燃料厂房洞室10和另一个安全厂房洞室9依次相连，所述核辅助厂房洞室8、两个安全厂房洞室9和核燃料厂房洞室10分别与主交通洞13相连，所述核辅助厂房洞室8的外端面和核燃料厂房洞室10的一侧分别设有与主交通洞13相连的安装平台11。
参见图4，本发明地下核电站大件吊装运输方法，包括如下步骤：
参见图1，步骤一：当核反应堆厂房洞室1施工到岩锚梁层时进行混凝土的浇筑，待混凝土达到龄期形成岩锚梁15后，通过核反应堆厂房洞室1顶部的吊物竖井2吊入环形施工桥机6，并通过汽车吊将环形施工桥机6安装到岩锚梁15上，这是由于核反应堆厂房洞室1高程较高，如果等核反应堆厂房洞室1完全施工好再去安装环形施工桥机6，需要较长的汽车吊吊臂长度，而一般汽车吊是很难达到这一长度的，不仅如此，即使汽车吊吊臂长度满足需求，作为圆筒形的核反应堆厂房洞室1内的空间也很难容纳这一长度，使安装工作几乎难以实施，所以，必须在施工到岩锚梁时就着手安装环形施工桥机6，这不仅对汽车吊吊臂的长度要求不高，而且核反应堆厂房洞室1较为局促的空间内也容易操作，同时吊物竖井2的设置既充分利用地面的吊装设备，又不会过多占用地下空间；
步骤二：继续核反应堆厂房洞室1的施工并完成开挖工作，利用环形施工桥机6进行安全壳筒体7和环形吊车轨道梁18的安装直至完成安装，所述安全壳筒体7和环形吊车轨道梁18的运输是通过设备运输通道14完成的，通过吊住环形吊车大梁4一端的龙门吊向吊物竖井2吊入环形吊车大梁4并送入核反应堆厂房洞室1内，利用环形施工桥机6吊住环形吊车大梁4的另一端，在龙门吊和环形施工桥机6的配合下，使环形吊车大梁4由竖直状态直至水平，并安装到环形吊车轨道梁18上，由于安全壳筒体7已经安装好，所以要通过设备运输通道14完成环形吊车大梁4运输的施工难度相当大，而此时安全壳穹顶钢里衬5又未封顶，通过吊物竖井2将环形吊车大梁4吊装进入核反应堆厂房洞室1内，既充分利用了相对开敞的核反应堆厂房洞室1上部空间，又直接利用了刚安装好的环形施工桥机6，避免增加额外的施工费设备和时间，加快了工程进度，降低了生产成本；
步骤三：利用环形吊车轨道梁18和环形吊车大梁4作为安全壳穹顶钢里衬5的安装胎架的受力支撑点，将加工好的安全壳穹顶钢里衬5分片从吊物竖井2吊入核反应堆厂 房洞室1内，并在安装胎架上分片焊接拼装，因为核反应堆厂房洞室1内空间有限，不可能如地面核电站一样有充裕施工场地的保证，只有利用现有的构件与空间作为受力支撑点，并在此基础上进行安全壳穹顶钢里衬5的分片焊接拼装；
步骤四：将核反应堆3内的各个永久大型设备通过与核反应堆厂房洞室1相连的设备运输通道14运至安全壳筒体7内，这是将这些永久大型设备通过大型平板车(图中未示出)沿着布置在设备运输通道14上的轨道运输到安全壳筒体7的设备闸门(图中未示出)，再通过设备闸门运入安全壳筒体7并放置到安全壳筒体7内的工作平台(图中未示出)上，再利用环形吊车大梁4进行翻身以及吊装到工作区位，由于核反应堆3内的各个永久大型设备必须等到安全壳穹顶钢里衬5封顶后才能安装，不可能利用吊物竖井2继续吊装，所以只有充分利用设备运输通道14通过安全壳筒体7内的设备闸门和工作平台进行吊装运输；
参见图2，以燃料厂房洞室10为例说明步骤五：进行组合洞室、电气厂房洞室16与卸压洞室17的施工，当组合洞室、电气厂房洞室16与卸压洞室17的开挖完成后，利用汽车吊将厂房桥机12安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞13将核电辅助设备运到位于组合洞室一侧或一端的安装平台11上，最后通过厂房桥机12将核电辅助设备吊装到工作区位，由于组合洞室的长度方向较长，汽车吊的吊臂可以充分利用这一特点进行厂房桥机12的安装施工，不会受到如前序步骤中核反应堆厂房洞室1那样的空间限制。
当然，步骤五的施工过程也可以与步骤一、步骤二、步骤三或步骤四的施工同时进行，或者与步骤一、步骤二、步骤三和步骤四的施工同时进行。
本发明充分利用大型地下核电站中的现有设备，结合地下空间和地下施工的特点，合理方便得解决了大型地下核电站中大件设备在地下洞室内的吊装运输技术难题，为地下空间的施工提供了新的思路。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (8)

  1. 一种地下核电站大件吊装运输方法，其特征在于：包括如下步骤：
    步骤一：当核反应堆厂房洞室(1)施工到岩锚梁层时进行混凝土的浇筑，待混凝土达到龄期形成岩锚梁(15)后，通过核反应堆厂房洞室(1)顶部的吊物竖井(2)吊入环形施工桥机(6)，并通过汽车吊将环形施工桥机(6)安装到岩锚梁(15)上；
    步骤二：继续核反应堆厂房洞室(1)的施工并完成开挖工作，利用环形施工桥机(6)进行安全壳筒体(7)和环形吊车轨道梁(18)的安装直至完成安装，通过吊住环形吊车大梁(4)一端的龙门吊向吊物竖井(2)吊入环形吊车大梁(4)并送入核反应堆厂房洞室(1)内，利用环形施工桥机(6)吊住环形吊车大梁(4)的另一端，在龙门吊和环形施工桥机(6)的配合下，使环形吊车大梁(4)由竖直状态直至水平，并安装到环形吊车轨道梁(18)上；
    步骤三：利用环形吊车轨道梁(18)和环形吊车大梁(4)作为安全壳穹顶钢里衬(5)的安装胎架的受力支撑点，将加工好的安全壳穹顶钢里衬(5)分片从吊物竖井(2)吊入核反应堆厂房洞室(1)内，并在安装胎架上分片焊接拼装；
    步骤四：将核反应堆(3)内的各个永久大型设备通过与核反应堆厂房洞室(1)相连的设备运输通道(14)运至安全壳筒体(7)内，再利用环形吊车大梁(4)进行翻身以及吊装到工作区位。
  2. 根据权利要求1所述的地下核电站大件吊装运输方法，其特征在于：按步骤一施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机(12)安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞(13)将核电辅助设备运到位于组合洞室一侧或一端的安装平台(11)上，最后通过厂房桥机(12)将核电辅助设备吊装到工作区位。
  3. 根据权利要求1所述的地下核电站大件吊装运输方法，其特征在于：按步骤二施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机(12)安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞(13)将核电辅助设 备运到位于组合洞室一侧或一端的安装平台(11)上，最后通过厂房桥机(12)将核电辅助设备吊装到工作区位。
  4. 根据权利要求1所述的地下核电站大件吊装运输方法，其特征在于：按步骤三施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机(12)安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞(13)将核电辅助设备运到位于组合洞室一侧或一端的安装平台(11)上，最后通过厂房桥机(12)将核电辅助设备吊装到工作区位。
  5. 根据权利要求1所述的地下核电站大件吊装运输方法，其特征在于：按步骤四施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机(12)安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞(13)将核电辅助设备运到位于组合洞室一侧或一端的安装平台(11)上，最后通过厂房桥机(12)将核电辅助设备吊装到工作区位。
  6. 根据权利要求1所述的地下核电站大件吊装运输方法，其特征在于：按步骤一至步骤四施工的同时进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机(12)安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞(13)将核电辅助设备运到位于组合洞室一侧或一端的安装平台(11)上，最后通过厂房桥机(12)将核电辅助设备吊装到工作区位。
  7. 根据权利要求1所述的地下核电站大件吊装运输方法，其特征在于：步骤五：进行组合洞室的施工，当组合洞室的开挖完成后，利用汽车吊将厂房桥机(12)安装到组合洞室上部沿长度方向布置的牛腿上，随后利用主交通洞(13)将核电辅助设备运到位于组合洞室一侧或一端的安装平台(11)上，最后通过厂房桥机(12)将核电辅助设备吊装到工作区位。
  8. 根据权利要求2至7中任一项所述的地下核电站大件吊装运输方法，其特征在于： 所述组合洞室包括沿长度方向呈“一”字布置的核辅助厂房洞室(8)、两个安全厂房洞室(9)和核燃料厂房洞室(10)，其中，核辅助厂房洞室(8)、一个安全厂房洞室(9)、核燃料厂房洞室(10)和另一个安全厂房洞室(9)依次相连，所述核辅助厂房洞室(8)、两个安全厂房洞室(9)和核燃料厂房洞室(10)分别与主交通洞(13)相连，所述核辅助厂房洞室(8)的外端面和核燃料厂房洞室(10)的一侧分别设有与主交通洞(13)相连的安装平台(11)。
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CN103342321A (zh) * 2013-06-28 2013-10-09 中广核工程有限公司 在役核电站蒸汽发生器的整体更换吊装方法
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CN112589347A (zh) * 2020-12-03 2021-04-02 中国核工业二四建设有限公司 一种应用于核电站钢衬里模块整体拼装的调整工装及系统

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