WO2022184136A1 - Assembly-type subway station full-hoisting construction method in pile-anchor retaining structure system - Google Patents

Assembly-type subway station full-hoisting construction method in pile-anchor retaining structure system Download PDF

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Publication number
WO2022184136A1
WO2022184136A1 PCT/CN2022/079061 CN2022079061W WO2022184136A1 WO 2022184136 A1 WO2022184136 A1 WO 2022184136A1 CN 2022079061 W CN2022079061 W CN 2022079061W WO 2022184136 A1 WO2022184136 A1 WO 2022184136A1
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Prior art keywords
roof
members
hoisting
side wall
construction method
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PCT/CN2022/079061
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French (fr)
Chinese (zh)
Inventor
陈文尹
余诚
刘辉
杨义涛
汪开发
朱达
张银银
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中铁四局集团有限公司
中国中铁股份有限公司
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Publication of WO2022184136A1 publication Critical patent/WO2022184136A1/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/045Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/045Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E02D29/05Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/04Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof

Definitions

  • the invention relates to a construction method for full hoisting of a prefabricated subway station, more particularly to a construction method for assembling a prefabricated subway station structure in a pile-anchor enclosure structure system.
  • Subway stations are generally constructed in mature areas.
  • the open-cut method for subway stations has the advantages of many construction work surfaces, high speed and low engineering cost.
  • the open-cut and cast-in-place method in urban construction has disadvantages such as blocking traffic, serious noise and dust pollution, large labor demand, and high consumption of materials and resources.
  • the use of fully prefabricated structure assembly has become the trend of subway station construction; however, there has been no public report on the construction method of fully prefabricated structure assembly in subway stations so far. solved problem.
  • the gantry crane In the traditional construction method of open-cut and cast-in-place method, the gantry crane is used in conjunction with the assembly trolley in the pit to realize the block assembly of each prefabricated component; the assembly trolley is separated from the left and right, and the middle plate assembly frame and the top plate assembly frame operate independently;
  • This construction method has many supporting equipment and complicated procedures; at the same time, the trolley occupies a large working space in the pit, and the trolley assembly process is very time-consuming, which seriously restricts the progress of the project, especially in the hoisting of large-scale hoisting operations. There are great security risks in the process and in the cross-operation process.
  • the present invention provides a construction method for full hoisting of a prefabricated subway station, so that the construction process of the prefabricated subway station is safe and efficient.
  • the prefabricated subway station is composed of prefabricated components, and the prefabricated components include: floor components, column components, longitudinal beam components, side wall components, mid-plate components and vault components;
  • the full hoisting construction method is to use a single gantry crane to carry out hoisting and assembly according to the following process:
  • Step 1 Lay the Finish Flat Strip
  • Three fine-leveling strips are arranged longitudinally along the station, which are respectively the middle strip and the side strips on both sides, and a cushion layer is laid between the adjacent precise-leveling strips; Leave a gap, and adopt self-compacting concrete to carry out inverted arch filling for the gap after the base plate member is installed in sections;
  • the floor components of the storage area are transported to the installation position by a gantry crane; the through-core jacks are used for tensioning and pulling longitudinally, and the lateral jacks are installed in place with fine-tuning lateral movement. Complete the base plate installation;
  • Step 3 Assemble the columns and stringers
  • the tool is to hoist the longitudinal beam members horizontally in place, and set up tongue and groove butt joints between the longitudinal beam members and the column members, and perform screw connection;
  • Step 4 Assemble the side walls on both sides
  • Step 5 Assemble the middle plate
  • the main spreader of the gantry crane is used to hoist the middle plate member horizontally from the storage area to the set position, and the middle plate member is fixedly installed with the top of the longitudinal beam member and the waist corbel of the side wall member as the support;
  • the side wall members are connected one by one to realize the main body of the station is closed into a ring.
  • Each ring of vault members and correspondingly arranged 10-20 rings of floor members, 5-10 rings of column members and longitudinal beam members, 3 rings of side wall members and 3 rings of mid-plate members constitute a complete ring.
  • the ring is advanced longitudinally as a whole as a whole.
  • every installation of 4-ring base plate members carries out 1 time backfilling of the fertilizer tank, and every installation of 16-ring base plate members carries out an inverted arch filling; Grouting is performed on the tongue and groove; grouting is performed on the upper void of the vault for every 4-section complete ring installed.
  • the top plate assembly is carried out according to the following process:
  • the roof member is composed of two prefabricated left and right roof members assembled, which are respectively the left member of the roof and the right member of the roof; the left member of the roof and the right member of the roof are anchored by steel bars at the butt joint; Distribute at least four lifting points along the span direction of the roof members, including proximal lifting points respectively located at the proximal ends of the left and right roof members, and distal lifting points respectively positioned at the distal ends of the left and right roof members;
  • control the hooks at each lifting point to maintain their respective set lifting weights, and hoist the roof member in a balanced manner; when the roof member and the side wall members are installed in place, control each The force of the hook at the lifting point is used to fine-tune the arch span of the roof member, so that the arch span of the roof member is consistent with the clear width between the side wall members on both sides, so as to ensure that the roof member is at the top of the side wall members on both sides. Precisely seated.
  • control of the force of each hook for fine-tuning the span of the arch of the roof member is in the following two ways:
  • Method 1 Increase the force of the two distal lifting points, and/or reduce the force of the two proximal lifting points, so as to increase the span of the arch of the roof member;
  • Method 2 Reduce the force of the two distal suspension points, and/or increase the force of the two proximal suspension points, so that the span of the arch of the roof member is reduced.
  • the present invention realizes the construction method of full hoisting and assembling in the pile-anchor enclosure structure system, and each component is connected by hoisting, which greatly improves the work efficiency;
  • the present invention only uses a single gantry crane to partially assemble trolleys for different components in the foundation pit, which greatly reduces the input of trolleys in the pit, increases the effective working space in the pit, and further improves work efficiency;
  • the present invention reasonably sets the hoisting process, and the process conversion is safe, reliable and efficient;
  • the present invention can effectively control the shaking of components during the hoisting process and ensure accurate positioning during hoisting.
  • the present invention can obviously improve the problems of blocking traffic, serious noise and dust pollution, large labor demand, and high consumption of materials and resources.
  • Fig. 1 is the structural schematic diagram of the assembled station of the pile-anchor enclosure structure system of the present invention
  • FIG. 2 is a schematic structural diagram of a prefabricated subway station in the present invention.
  • Fig. 3 is the schematic diagram of each prefabricated component of the prefabricated subway station in the present invention.
  • Fig. 4 is a schematic diagram of the distribution of finely flat strips in the present invention.
  • FIG. 5 is a schematic diagram of the hoisting of the bottom plate member in the present invention.
  • Figure 6 is a schematic diagram of the hoisting of a column member in the present invention.
  • FIG. 7 is a schematic diagram of the hoisting of longitudinal beam members in the present invention.
  • Fig. 8a is a schematic diagram of lifting and transporting a side wall member in the present invention.
  • Figure 8b is a schematic view of the side wall member inversion in the present invention.
  • Figure 8c is a schematic view of the side wall member assembling in the present invention.
  • FIG. 9 is a schematic diagram of the assembly of the middle plate member in the present invention.
  • Figure 10 is a schematic diagram of the hoisting of the roof member in the present invention.
  • the invention is applied to the construction of the assembled station structure of the pile-anchor enclosure structure system, and realizes the efficient, safe and high-quality construction of the assembled station.
  • the gantry crane uses rigid outriggers, including There is a gantry 7c and a main beam 7d; the crane is composed of a main spreader 7a and an auxiliary spreader 7b, and the hoisting trolley runs on the main beam track 7e.
  • the electrical control system has anti-sway functions, precise positioning functions, and can be equipped with a monitoring system .
  • the assembled station of the pile-anchor enclosure system is composed of prefabricated components, each prefabricated component includes: floor member 1, column member 2, longitudinal beam member 3, side member Wall member 4, middle plate member 5 and vault member 6; use gantry crane 7 to carry out lifting and assembly according to the following process:
  • Step 1 Lay the Finish Flat Strip
  • 3 finely flat strips are arranged along the longitudinal direction of the station, namely the middle strip 8a and the side strips 8b on both sides.
  • the width of the middle strip 8a is 0.5m, and the side strips on both sides are
  • the width of the belt 8b is set to 1.5m, and a cushion layer 8 with a thickness of 15cm is laid between the adjacent flattening strips; a 5cm gap is reserved between the cushion layer 8 and the base plate member 1, and the The voids are filled with self-compacting concrete for inverted arches.
  • a cross beam 9 is arranged according to the span of the bottom plate member 1, each hanging rope 9a is arranged along the cross beam 9, and the hanging rope 9a is hung on the bottom plate hanging point 1a of the corresponding position in the bottom plate member 1
  • the bottom plate member 1 of the storage area is transported horizontally to the installation position by using the main spreader 7a and the beam 9; three 100t through-center jacks are used for tensioning and pulling longitudinally, and the lateral jacks are installed in place with fine-tuning lateral movement.
  • the bottom plate members 1 are connected by tension, and then the fertilizer tank is poured to complete the installation of the bottom plate members.
  • Step 3 Assemble the columns and stringers
  • the longitudinal beam member 3 is hoisted in place horizontally by the main sling 7a in the gantry crane 7 using a “herringbone”-shaped sling 10, and a tongue-and-groove connection is provided between the longitudinal beam member 3 and the column member 2, and screw connection is performed. .
  • Step 4 Assemble the side walls on both sides
  • Step 5 Assemble the middle plate
  • the middle plate member 5 is hoisted horizontally from the storage area to the set position by the main sling 7a or the auxiliary sling 7b in the gantry crane 7 using the “herringbone” sling 10, and the top end of the longitudinal beam member 3 is hoisted horizontally from the storage area to the set position.
  • the waist corbel of the side wall member 4 is used as a support, and the local work bench in the foundation pit is assisted in positioning, and the middle plate member 5 is fixedly installed.
  • the two left and right roof prefabricated parts that constitute the roof are assembled on the outside of the foundation pit to form an integral roof member 6; the main hanger 7a in the gantry crane 7 is used to lift the roof member 6 horizontally, so that the roof The two ends of the arch feet of the member 6 are connected to the two side wall members one by one, so that the main body of the station is closed into a ring.
  • the top plate assembly is carried out according to the following process:
  • the roof member 6 is composed of two prefabricated left and right roof members assembled, which are the left member of the roof and the right member of the roof respectively; the left member of the roof and the right member of the roof are anchored by steel reinforcement at the butt joint; At least four lifting points are distributed in the span direction of the members, including proximal lifting points respectively located at the proximal ends of the left and right roof members, and distal lifting points respectively positioned at the distal ends of the left and right roof members.
  • the set lifting weight of the hooks at each lifting point is determined when the roof member is hoisted in a balanced manner; during the lifting process of the roof member 6, the hooks at each lifting point are controlled to maintain their respective set lifting weights.
  • the components are balanced and hoisted; when the roof member 6 and the side wall member 4 are installed in place, the force of the hook at each lifting point is controlled to fine-tune the arch span of the roof member 6, so that the arch span of the roof member 6 is the same as that on both sides.
  • the clear widths between the side wall members 4 are consistent, so as to ensure that the top plate members 6 are accurately positioned at the top ends of the side wall members 4 on both sides.
  • Figure 10 shows that the two proximal lifting points are lifting point P1 and lifting point P2 respectively, and the two distal lifting points are lifting point P3 and lifting point P4 respectively; the force of the hook at each lifting point is controlled for There are two ways to fine-tune the span of the arch of the top plate member 6:
  • Method 1 Increase the force of the two distal lifting points, namely the lifting point P3 and the lifting point P4, and/or reduce the force of the two near-end lifting points, namely the lifting point P1 and the lifting point P2, so that the The span of the arch is increased.
  • Method 2 Reduce the force of the two distal lifting points, namely the lifting point P3 and the lifting point P4, and/or increase the force of the two near-end lifting points, namely the lifting point P1 and the lifting point P2, so that the The arch span is reduced.
  • each 1-ring dome member and correspondingly arranged 10-20-ring floor members, 5-10-ring column members and longitudinal beam members, 3-ring side wall members and 3-ring mid-plate members constitute a complete ring.
  • the whole section of the whole ring is advanced along the longitudinal direction as a whole; in the process of advancing along the longitudinal direction, every 4-ring base plate member is installed to carry out a backfilling of the fertilizer groove, and every 16-ring base member is installed to carry out an inverted arch filling; every 2-4
  • the whole ring is grouted for the tenon and groove between the components; every 4th whole ring is installed, the upper part of the dome is grouted.

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Abstract

An assembly-type subway station full-hoisting construction method in a pile-anchor retaining structure system is disclosed. A single gantry crane is employed to implement the full-hoisting assembly-type construction method in a pile-anchor retaining structure system on the basis of the following sequence: laying fine flat strips, installing a bottom plate, installing an upright column and a longitudinal beam, installing two side walls, installing an intermediate plate, and installing a top plate, thus greatly increasing work efficiency. The single gantry crane co-operates with localized assembly trolleys located in the foundation pit and associated with the different components, greatly reducing the number of trolleys in the pit, and increasing the effective operation space therein. The invention achieves significant improvement in respect of problems including traffic blockages, heavy noise and dust pollution, high labor needs, and high material and resource consumption.

Description

桩锚围护结构体系中装配式地铁车站全吊装施工方法Construction method of full hoisting of prefabricated subway station in pile-anchor enclosure system 技术领域technical field
本发明涉及装配式地铁车站全吊装施工方法,更具体地说是一种桩锚围护结构体系中的装配式地铁车站结构拼装施工方法。The invention relates to a construction method for full hoisting of a prefabricated subway station, more particularly to a construction method for assembling a prefabricated subway station structure in a pile-anchor enclosure structure system.
背景技术Background technique
地铁车站普遍建设在繁华地区,对地铁车站采用明挖法进行施工具有施工作业面多、速度快、工程造价低等优点。但于此同时,明挖现浇法在城市施工存在着阻塞交通、噪声粉尘污染严重、劳动力需求量大、材料和资源消耗大等弊端。为了克服这些弊端,采用全预制结构拼装成为地铁车站施工的趋势;但是,针对地铁车站全预制结构拼装的施工方法,迄今未有公开报导,如何实现安全高效成为全预制结构拼装地铁车站施工迫切需要解决的问题。Subway stations are generally constructed in prosperous areas. The open-cut method for subway stations has the advantages of many construction work surfaces, high speed and low engineering cost. However, at the same time, the open-cut and cast-in-place method in urban construction has disadvantages such as blocking traffic, serious noise and dust pollution, large labor demand, and high consumption of materials and resources. In order to overcome these drawbacks, the use of fully prefabricated structure assembly has become the trend of subway station construction; however, there has been no public report on the construction method of fully prefabricated structure assembly in subway stations so far. solved problem.
在明挖现浇法的传统施工方法中,采用门式起重机配合坑内拼装台车实现各预制构件的分块拼装;拼装台车为左右分离式,且中板拼装架和顶板拼装架独立运行;这种施工方法配套设备多、工序复杂;同时,台车在坑内占据了较大的作业空间,台车拼装过程十分耗时,严重制约了工程进度,尤其是在大件吊装作业工序转换的吊装过程中,以及在交叉作业过程中存在较大的安全风险。In the traditional construction method of open-cut and cast-in-place method, the gantry crane is used in conjunction with the assembly trolley in the pit to realize the block assembly of each prefabricated component; the assembly trolley is separated from the left and right, and the middle plate assembly frame and the top plate assembly frame operate independently; This construction method has many supporting equipment and complicated procedures; at the same time, the trolley occupies a large working space in the pit, and the trolley assembly process is very time-consuming, which seriously restricts the progress of the project, especially in the hoisting of large-scale hoisting operations. There are great security risks in the process and in the cross-operation process.
发明内容SUMMARY OF THE INVENTION
本发明是为了避免上述现在技术所存在的问题,提供一种装配式地铁车站全吊装施工方法,使装配式地铁车站的建设过程安全高效。In order to avoid the problems existing in the above-mentioned existing technology, the present invention provides a construction method for full hoisting of a prefabricated subway station, so that the construction process of the prefabricated subway station is safe and efficient.
本发明为解决技术问题采用如下技术方案:The present invention adopts the following technical scheme for solving the technical problem:
本发明桩锚围护结构体系中装配式地铁车站全吊装施工方法的特点是:The features of the construction method for the full hoisting of the prefabricated subway station in the pile-anchor enclosure structure system of the present invention are:
所述装配式地铁车站是由各预制构件拼装构成,所述各预制构件包括:底板构件、立柱构件、纵梁构件、侧墙构件、中板构件和拱顶构件;The prefabricated subway station is composed of prefabricated components, and the prefabricated components include: floor components, column components, longitudinal beam components, side wall components, mid-plate components and vault components;
所述全吊装施工方法是采用单台龙门吊按如下过程实施吊运和拼装:The full hoisting construction method is to use a single gantry crane to carry out hoisting and assembly according to the following process:
步骤1:铺设精平条带Step 1: Lay the Finish Flat Strip
沿车站纵向布置三条精平条带,分别是中间条带和分处在两侧的侧边条带,相邻精平条带之间铺设垫层;在所述垫层与底板构件之间预留空隙,在底板构件分段安装后针对所述空隙采用自密实砼进行仰拱填充;Three fine-leveling strips are arranged longitudinally along the station, which are respectively the middle strip and the side strips on both sides, and a cushion layer is laid between the adjacent precise-leveling strips; Leave a gap, and adopt self-compacting concrete to carry out inverted arch filling for the gap after the base plate member is installed in sections;
步骤2:拼装底板Step 2: Assemble the Bottom Plate
存放区的底板构件由龙门吊运输至安装位置;采用穿心千斤顶张拉牵引纵移,侧向千斤顶配合微调横移安装到位,在相邻底板构件之间张拉连接,继之进行肥槽浇筑,完成底板安装;The floor components of the storage area are transported to the installation position by a gantry crane; the through-core jacks are used for tensioning and pulling longitudinally, and the lateral jacks are installed in place with fine-tuning lateral movement. Complete the base plate installation;
步骤3:拼装立柱和纵梁Step 3: Assemble the columns and stringers
将龙门吊中的主吊具和副吊具分别吊挂在立柱构件顶端和底端的吊点上,使立柱构件自存放区呈水平吊运,到达位置后调整主吊具和副吊具的相对提吊高度,使立柱构件由水平翻转呈竖直,将立柱构件的底端朝向设置在底板上的杯口中进行底部定位,在所述立柱构件的顶端设置套箍,由一端固定在套箍上的斜拉绳对立柱构件进行竖直定位,完成立柱构件的底部定位和竖直定位之后,在杯口的空隙中浇注砼,待砼固结即完成立柱构件的安装;再采用龙门吊中的主吊具将纵梁构件呈水平吊装到位,在纵梁构件与立柱构件之间设置榫槽对接,并进行螺杆连接;Hang the main spreader and the auxiliary spreader in the gantry crane on the lifting points at the top and bottom of the column member respectively, so that the column member can be lifted horizontally from the storage area. After reaching the position, adjust the relative lifting of the main spreader and the auxiliary spreader. Lift the height so that the column member is turned from horizontal to vertical, and the bottom end of the column member is positioned toward the cup mouth set on the bottom plate for bottom positioning. The vertical positioning of the column member is carried out by the cable-stayed rope. After the bottom positioning and vertical positioning of the column member are completed, concrete is poured in the gap of the cup mouth, and the installation of the column member is completed after the concrete is consolidated; The tool is to hoist the longitudinal beam members horizontally in place, and set up tongue and groove butt joints between the longitudinal beam members and the column members, and perform screw connection;
步骤4:拼装两边侧墙Step 4: Assemble the side walls on both sides
将龙门吊中的主吊具和副吊具分别吊挂在侧墙构件的顶端和底端,使侧墙构件自存放区呈水平吊运,到达位置后调整主吊具和副吊具的相对提吊高度,使侧墙构件由水平翻转呈竖直进行拼装,拼装中采用千斤顶张拉牵引实现侧墙构件的纵向位移,由设置在车站维护结构中的伸缩杆对侧墙构件的顶端在外侧进行推或拉,实现墙面构件的竖直度调整;Hang the main spreader and auxiliary spreader in the gantry crane on the top and bottom ends of the side wall components respectively, so that the side wall components are hoisted horizontally from the storage area. After reaching the position, adjust the relative lifting of the main spreader and the auxiliary spreader. Lifting height, the side wall members are assembled from horizontal to vertical, and the longitudinal displacement of the side wall members is realized by jack tensioning and traction during the assembly. Push or pull to achieve vertical adjustment of wall components;
步骤5:拼装中板Step 5: Assemble the middle plate
采用龙门吊中主吊具将中板构件自存放区呈水平吊运至设定位置,以纵梁构件的顶端和侧墙构件的腰部牛腿为支撑,固定安装中板构件;The main spreader of the gantry crane is used to hoist the middle plate member horizontally from the storage area to the set position, and the middle plate member is fixedly installed with the top of the longitudinal beam member and the waist corbel of the side wall member as the support;
步骤6:拼装顶板Step 6: Assemble the top plate
将构成顶板的左右两块顶板预制件在基坑外拼装台架上拼装呈整体的顶板构件;采用龙门吊中的主吊具将顶板构件进行水平吊运,使顶板构件的两端拱脚与两边侧墙构件一一对接,实现车站主体封闭成环。Assemble the left and right prefabricated parts of the roof that form the roof on the assembling bench outside the foundation pit to form a whole roof member; use the main hanger in the gantry crane to lift the roof member horizontally, so that the arches at both ends of the roof member are connected to the two sides of the roof. The side wall members are connected one by one to realize the main body of the station is closed into a ring.
本发明桩锚围护结构体系中装配式地铁车站全吊装施工方法的特点也在于:The characteristics of the construction method for the full hoisting of the prefabricated subway station in the pile-anchor enclosure structure system of the present invention are also as follows:
以每1环拱顶构件与相应配置的10~20环底板构件、5~10环立柱构件和纵梁构件、3环侧墙构件以及3环中板构件构成一节整环,以各节整环逐环整体沿纵向推进。Each ring of vault members and correspondingly arranged 10-20 rings of floor members, 5-10 rings of column members and longitudinal beam members, 3 rings of side wall members and 3 rings of mid-plate members constitute a complete ring. The ring is advanced longitudinally as a whole as a whole.
进一步,在所述沿纵向推进的过程中,每安装4环底板构件进行1次肥槽回填,每安装16环底板构件进行一次仰拱填充;每安装2~4节整环对各构件之间的榫槽进行注浆;每安装4节整环对拱顶上部空隙进行注浆。Further, in the described process of advancing along the longitudinal direction, every installation of 4-ring base plate members carries out 1 time backfilling of the fertilizer tank, and every installation of 16-ring base plate members carries out an inverted arch filling; Grouting is performed on the tongue and groove; grouting is performed on the upper void of the vault for every 4-section complete ring installed.
进一步,所述步骤6中顶板拼装是按如下过程进行:Further, in the described step 6, the top plate assembly is carried out according to the following process:
所述顶板构件是由预制成型的左右两块顶板构件拼装构成,分别是顶板左侧构件和顶板右侧构件;所述顶板左侧构件和顶板右侧构件在对拼处由钢筋张拉锚固;在沿顶板构件的跨度方向分布至少四个吊点,包括分别位于左右两块顶板构件的近端的近端吊点,以及分别位于左右两块顶板构件的远端的远端吊点;The roof member is composed of two prefabricated left and right roof members assembled, which are respectively the left member of the roof and the right member of the roof; the left member of the roof and the right member of the roof are anchored by steel bars at the butt joint; Distribute at least four lifting points along the span direction of the roof members, including proximal lifting points respectively located at the proximal ends of the left and right roof members, and distal lifting points respectively positioned at the distal ends of the left and right roof members;
基于顶板结构确定顶板构件平衡吊装时各吊点处吊钩的设定吊重;Determine the set hoisting weight of the hooks at each hoisting point during the balanced hoisting of the roof members based on the roof structure;
在所述顶板构件的提吊过程中,控制各吊点处吊钩保持为各自的设定吊重,对顶板构件进行平衡吊装;在所述顶板构件与侧墙构件就位安装时,控制各吊点处吊钩的受力用于微调顶板构件的拱口跨度,使顶板构件的拱口跨度与两边侧墙构件之间的净宽相一致,以此保证顶板构件在两边侧墙构件的顶端准确就位。During the hoisting process of the roof member, control the hooks at each lifting point to maintain their respective set lifting weights, and hoist the roof member in a balanced manner; when the roof member and the side wall members are installed in place, control each The force of the hook at the lifting point is used to fine-tune the arch span of the roof member, so that the arch span of the roof member is consistent with the clear width between the side wall members on both sides, so as to ensure that the roof member is at the top of the side wall members on both sides. Precisely seated.
进一步,所述控制各吊钩的受力用于微调顶板构件的拱口跨度为如下两种方式:Further, the control of the force of each hook for fine-tuning the span of the arch of the roof member is in the following two ways:
方式一:增加两个远端吊点的受力,和/或减小两个近端吊点的受力,使顶板构件的拱口跨度加大;Method 1: Increase the force of the two distal lifting points, and/or reduce the force of the two proximal lifting points, so as to increase the span of the arch of the roof member;
方式二:减小两个远端吊点的受力,和/或增加两个近端吊点的受力,使顶板构件的拱口跨度减小。Method 2: Reduce the force of the two distal suspension points, and/or increase the force of the two proximal suspension points, so that the span of the arch of the roof member is reduced.
与已有技术相比,本发明有益效果体现在:Compared with the prior art, the beneficial effects of the present invention are reflected in:
1、本发明实现了桩锚围护结构体系中全吊装装配的施工方法,各构件均采用吊装的方式进行接装,极大地提高了工效;1. The present invention realizes the construction method of full hoisting and assembling in the pile-anchor enclosure structure system, and each component is connected by hoisting, which greatly improves the work efficiency;
2、本发明仅使用单台龙门吊,在基坑内针对不同构件局部拼装台车,极大地减少坑中台车投入,增加了坑内有效作业空间,进一步提高工效;2. The present invention only uses a single gantry crane to partially assemble trolleys for different components in the foundation pit, which greatly reduces the input of trolleys in the pit, increases the effective working space in the pit, and further improves work efficiency;
3、本发明合理设置吊装流程,工序转换安全可靠高效;3. The present invention reasonably sets the hoisting process, and the process conversion is safe, reliable and efficient;
4、本发明通过采用具有防摇摆功能且能准确定位的智能龙门吊,能够有效控制吊装过程中的构件晃动,并保证吊运中定位准确。4. By adopting the intelligent gantry crane with anti-sway function and accurate positioning, the present invention can effectively control the shaking of components during the hoisting process and ensure accurate positioning during hoisting.
 5、本发明针对阻塞交通、噪声粉尘污染严重、劳动力需求量大、材料和资源高消耗的问题都有十分显然的改善。5. The present invention can obviously improve the problems of blocking traffic, serious noise and dust pollution, large labor demand, and high consumption of materials and resources.
附图说明Description of drawings
图1为本发明中桩锚围护结构体系装配式车站结构示意图;Fig. 1 is the structural schematic diagram of the assembled station of the pile-anchor enclosure structure system of the present invention;
图2为本发明中装配式地铁车站结构示意图;2 is a schematic structural diagram of a prefabricated subway station in the present invention;
图3为本发明中装配式地铁车站各预制构件示意图;Fig. 3 is the schematic diagram of each prefabricated component of the prefabricated subway station in the present invention;
图4为本发明中精平条带分布示意图;Fig. 4 is a schematic diagram of the distribution of finely flat strips in the present invention;
图5为本发明中底板构件吊装示意图;5 is a schematic diagram of the hoisting of the bottom plate member in the present invention;
图6为本发明中立柱构件吊装示意图;Figure 6 is a schematic diagram of the hoisting of a column member in the present invention;
图7为本发明中纵梁构件吊装示意图;7 is a schematic diagram of the hoisting of longitudinal beam members in the present invention;
图8a为本发明中侧墙构件吊运示意图;Fig. 8a is a schematic diagram of lifting and transporting a side wall member in the present invention;
图8b为本发明中侧墙构件翻转示意图;Figure 8b is a schematic view of the side wall member inversion in the present invention;
图8c为本发明中侧墙构件拼装示意图;Figure 8c is a schematic view of the side wall member assembling in the present invention;
图9为本发明中中板构件拼装示意图;9 is a schematic diagram of the assembly of the middle plate member in the present invention;
图10为本发明中顶板构件吊装示意图;Figure 10 is a schematic diagram of the hoisting of the roof member in the present invention;
图中标号:1底板构件,1a底板吊点,2立柱构件,2a杯口,3纵梁构件,4侧墙构件,5中板构件,6拱顶构件;7龙门吊,7a主吊具,7b副吊具,7c门架,7d主梁,7e主梁轨道,8垫层,8a中间条带,8b侧边条带,9横梁,9a吊绳,10吊带。Labels in the figure: 1 base plate member, 1a base plate lifting point, 2 column member, 2a cup mouth, 3 longitudinal beam member, 4 side wall member, 5 middle plate member, 6 vault member; 7 gantry crane, 7a main spreader, 7b Auxiliary spreader, 7c gantry, 7d main beam, 7e main beam track, 8 cushion, 8a middle strip, 8b side strip, 9 beam, 9a sling, 10 sling.
具体实施方式Detailed ways
本发明应用于桩锚围护结构体系装配式车站结构施工,实现装配式车站高效、安全和高质量的施工。The invention is applied to the construction of the assembled station structure of the pile-anchor enclosure structure system, and realizes the efficient, safe and high-quality construction of the assembled station.
参见图1,采用智能型龙门吊7,型号为ME160t+45t‑24‑27m、H=17.5‑19m,其最大吨位为160t,轨距为23.6m,高度为17.15m,龙门吊使用刚性支腿,包括有门架7c和主梁7d;起重机构成包括主吊具7a和副吊具7b、吊重小车运行在主梁轨道7e上,电气控制***具有防摇摆功能、精确定位功能,并能具备监控***。Referring to Figure 1, the intelligent gantry crane 7 is adopted, the model is ME160t+45t‑24‑27m, H=17.5‑19m, the maximum tonnage is 160t, the gauge is 23.6m, and the height is 17.15m. The gantry crane uses rigid outriggers, including There is a gantry 7c and a main beam 7d; the crane is composed of a main spreader 7a and an auxiliary spreader 7b, and the hoisting trolley runs on the main beam track 7e. The electrical control system has anti-sway functions, precise positioning functions, and can be equipped with a monitoring system .
参见图1、图2和图3,本实施例中桩锚围护结构体系装配式车站是由各预制构件拼装构成,各预制构件包括:底板构件1、立柱构件2、纵梁构件3、侧墙构件4、中板构件5和拱顶构件6;采用龙门吊7按如下过程实施吊运和拼装:Referring to Figure 1, Figure 2 and Figure 3, in this embodiment, the assembled station of the pile-anchor enclosure system is composed of prefabricated components, each prefabricated component includes: floor member 1, column member 2, longitudinal beam member 3, side member Wall member 4, middle plate member 5 and vault member 6; use gantry crane 7 to carry out lifting and assembly according to the following process:
步骤1:铺设精平条带Step 1: Lay the Finish Flat Strip
参见图4,沿车站纵向布置3条精平条带,分别是中间条带8a和分处在两侧的侧边条带8b,中间条带8a的宽度为0.5m,两侧的侧边条带8b的宽度设置为1.5m,相邻精平条带之间铺设厚度为15cm的垫层8;在垫层8与底板构件1之间预留5cm空隙,在底板构件1分段安装后针对空隙采用自密实砼进行仰拱填充。Referring to Figure 4, 3 finely flat strips are arranged along the longitudinal direction of the station, namely the middle strip 8a and the side strips 8b on both sides. The width of the middle strip 8a is 0.5m, and the side strips on both sides are The width of the belt 8b is set to 1.5m, and a cushion layer 8 with a thickness of 15cm is laid between the adjacent flattening strips; a 5cm gap is reserved between the cushion layer 8 and the base plate member 1, and the The voids are filled with self-compacting concrete for inverted arches.
步骤2:拼装底板Step 2: Assemble the Bottom Plate
参见图5,在龙门吊7的主吊具7a上按底板构件1的跨度设置横梁9,沿横梁9设置各吊绳9a,将吊绳9a挂接在底板构件1中对应位置的底板吊点1a上,将存放区的底板构件1利用主吊具7a和横梁9呈水平运输至安装位置;采用3台100t穿心千斤顶张拉牵引纵移,侧向千斤顶配合微调横移安装到位,在相邻底板构件1之间张拉连接,继之进行肥槽浇筑,完成底板构件安装。5 , on the main hanger 7a of the gantry crane 7, a cross beam 9 is arranged according to the span of the bottom plate member 1, each hanging rope 9a is arranged along the cross beam 9, and the hanging rope 9a is hung on the bottom plate hanging point 1a of the corresponding position in the bottom plate member 1 On the top, the bottom plate member 1 of the storage area is transported horizontally to the installation position by using the main spreader 7a and the beam 9; three 100t through-center jacks are used for tensioning and pulling longitudinally, and the lateral jacks are installed in place with fine-tuning lateral movement. The bottom plate members 1 are connected by tension, and then the fertilizer tank is poured to complete the installation of the bottom plate members.
步骤3:拼装立柱和纵梁Step 3: Assemble the columns and stringers
参见图6,将龙门吊7中的主吊具7a和副吊具7b分别吊挂在立柱构件2顶端和底端的吊点上,使立柱构件2自存放区呈水平吊运,到达位置后调整主吊具7a和副吊具7b的相对提吊高度,使立柱构件2由水平翻转呈竖直,卸下主吊具7a,保持副吊具7b在立柱构件2的柱顶端对立柱构件2的提吊;或直接进行竖向吊运,是采用副吊具7b在立柱构件2的柱顶端对立柱构件2进行吊装;将立柱构件2的底端朝向设置在底板上的杯口2a中进行底部定位,在立柱构件2的顶端设置套箍,由一端固定在套箍上的斜拉绳对立柱构件2进行竖直定位,完成立柱构件2的底部定位和竖直定位之后,在杯口2a的空隙中浇注砼,待砼固结即完成立柱构件2的安装;Referring to FIG. 6 , hang the main hanger 7a and the auxiliary hanger 7b in the gantry crane 7 on the lifting points at the top and bottom ends of the column member 2 respectively, so that the column member 2 is hoisted horizontally from the storage area, and after reaching the position, adjust the main The relative lifting height of the spreader 7a and the auxiliary spreader 7b makes the column member 2 turn from horizontal to vertical, remove the main spreader 7a, and keep the auxiliary spreader 7b at the top of the column member 2 to lift the column member 2. Or directly carry out vertical hoisting, which is to use the auxiliary spreader 7b to hoist the column member 2 at the top of the column member 2; position the bottom end of the column member 2 toward the cup opening 2a provided on the bottom plate for bottom positioning , a ferrule is arranged at the top of the column member 2, and the column member 2 is vertically positioned by a cable-stayed rope fixed on the ferrule at one end. The concrete is poured in the middle, and the installation of the column member 2 is completed after the concrete is consolidated;
参见图7,将纵梁构件3由龙门吊7中的主吊具7a采用“人”字形吊带10呈水平吊装到位,在纵梁构件3与立柱构件2之间设置榫槽对接,并进行螺杆连接。Referring to FIG. 7 , the longitudinal beam member 3 is hoisted in place horizontally by the main sling 7a in the gantry crane 7 using a “herringbone”-shaped sling 10, and a tongue-and-groove connection is provided between the longitudinal beam member 3 and the column member 2, and screw connection is performed. .
步骤4:拼装两边侧墙Step 4: Assemble the side walls on both sides
参见图8a、图8b和图8c,将龙门吊7中的主吊具7a和副吊具7b分别吊挂在侧墙构件4的顶端和底端,使侧墙构件4自存放区呈水平进行吊运,如图8a所示;到达位置后调整主吊具7a和副吊具7b的相对提吊高度,如图8b所示,使侧墙构件4由水平翻转呈竖直进行拼装,如图8c所示;拼装中采用千斤顶张拉牵引实现侧墙构件4的纵向位移,由设置在车站维护结构中的伸缩杆对侧墙构件4的顶端在外侧进行推拉控制,内部设置局部台架用于支顶,实现墙面构件4的竖直度调整。8a, 8b and 8c, the main hanger 7a and the auxiliary hanger 7b in the gantry crane 7 are respectively hung on the top and bottom ends of the side wall members 4, so that the side wall members 4 are horizontally hoisted from the storage area. Move, as shown in Figure 8a; after reaching the position, adjust the relative lifting heights of the main spreader 7a and the auxiliary spreader 7b, as shown in Figure 8b, so that the side wall member 4 is assembled vertically from a horizontal flip, as shown in Figure 8c The vertical displacement of the side wall member 4 is realized by the jack tensioning and pulling in the assembly, and the top end of the side wall member 4 is pushed and pulled by the telescopic rod set in the station maintenance structure. The verticality of the wall member 4 is adjusted.
对称拼装分处在两侧的侧墙构件4,采用激光测距仪量测内宽,校正无误后采用气动扳手将连接位置处的高强螺栓拧紧到设计值。Symmetrically assemble the side wall members 4 on both sides, use a laser range finder to measure the inner width, and use a pneumatic wrench to tighten the high-strength bolts at the connection position to the design value after correcting.
步骤5:拼装中板Step 5: Assemble the middle plate
参见图9,将中板构件5由龙门吊7中的主吊具7a或副吊具7b采用“人”字型吊带10自存放区呈水平吊运至设定位置,以纵梁构件3的顶端和侧墙构件4的腰部牛腿为支撑,基坑内局部作业台架辅助定位,固定安装中板构件5。Referring to FIG. 9 , the middle plate member 5 is hoisted horizontally from the storage area to the set position by the main sling 7a or the auxiliary sling 7b in the gantry crane 7 using the “herringbone” sling 10, and the top end of the longitudinal beam member 3 is hoisted horizontally from the storage area to the set position. The waist corbel of the side wall member 4 is used as a support, and the local work bench in the foundation pit is assisted in positioning, and the middle plate member 5 is fixedly installed.
步骤6:拼装顶板Step 6: Assemble the top plate
参见图10,将构成顶板的左右两块顶板预制件在基坑外拼装台架上拼装呈整体的顶板构件6;采用龙门吊7中的主吊具7a将顶板构件6进行水平吊运,使顶板构件6的两端拱脚与两边侧墙构件一一对接,实现车站主体封闭成环。Referring to Fig. 10, the two left and right roof prefabricated parts that constitute the roof are assembled on the outside of the foundation pit to form an integral roof member 6; the main hanger 7a in the gantry crane 7 is used to lift the roof member 6 horizontally, so that the roof The two ends of the arch feet of the member 6 are connected to the two side wall members one by one, so that the main body of the station is closed into a ring.
具体实施例中,顶板拼装是按如下过程进行:In a specific embodiment, the top plate assembly is carried out according to the following process:
顶板构件6是由预制成型的左右两块顶板构件拼装构成,分别是顶板左侧构件和顶板右侧构件;顶板左侧构件和顶板右侧构件在对拼处由钢筋张拉锚固;在沿顶板构件的跨度方向分布至少四个吊点,包括分别位于左右两块顶板构件的近端的近端吊点,以及分别位于左右两块顶板构件的远端的远端吊点。The roof member 6 is composed of two prefabricated left and right roof members assembled, which are the left member of the roof and the right member of the roof respectively; the left member of the roof and the right member of the roof are anchored by steel reinforcement at the butt joint; At least four lifting points are distributed in the span direction of the members, including proximal lifting points respectively located at the proximal ends of the left and right roof members, and distal lifting points respectively positioned at the distal ends of the left and right roof members.
基于顶板结构确定了顶板构件平衡吊装时各吊点处吊钩的设定吊重;在顶板构件6的提吊过程中,控制各吊点处吊钩保持为各自的设定吊重,对顶板构件进行平衡吊装;在顶板构件6与侧墙构件4就位安装时,控制各吊点处吊钩的受力用于微调顶板构件6的拱口跨度,使顶板构件6的拱口跨度与两边侧墙构件4之间的净宽相一致,以此保证顶板构件6在两边侧墙构件4的顶端准确就位。Based on the roof structure, the set lifting weight of the hooks at each lifting point is determined when the roof member is hoisted in a balanced manner; during the lifting process of the roof member 6, the hooks at each lifting point are controlled to maintain their respective set lifting weights. The components are balanced and hoisted; when the roof member 6 and the side wall member 4 are installed in place, the force of the hook at each lifting point is controlled to fine-tune the arch span of the roof member 6, so that the arch span of the roof member 6 is the same as that on both sides. The clear widths between the side wall members 4 are consistent, so as to ensure that the top plate members 6 are accurately positioned at the top ends of the side wall members 4 on both sides.
图10中示出了两个近端吊点分别是吊点P1和吊点P2,两个远端吊点分别是吊点P3和吊点P4;控制各吊点处吊钩的受力用于微调顶板构件6的拱口跨度为如下两种方式:Figure 10 shows that the two proximal lifting points are lifting point P1 and lifting point P2 respectively, and the two distal lifting points are lifting point P3 and lifting point P4 respectively; the force of the hook at each lifting point is controlled for There are two ways to fine-tune the span of the arch of the top plate member 6:
方式一:增加两个远端吊点即吊点P3和吊点P4的受力,和/或减小两个近端吊点即吊点P1和吊点P2的受力,使顶板构件6的拱口跨度加大。Method 1: Increase the force of the two distal lifting points, namely the lifting point P3 and the lifting point P4, and/or reduce the force of the two near-end lifting points, namely the lifting point P1 and the lifting point P2, so that the The span of the arch is increased.
方式二:减小两个远端吊点即吊点P3和吊点P4的受力,和/或增加两个近端吊点即吊点P1和吊点P2的受力,使顶板构件6的拱口跨度减小。Method 2: Reduce the force of the two distal lifting points, namely the lifting point P3 and the lifting point P4, and/or increase the force of the two near-end lifting points, namely the lifting point P1 and the lifting point P2, so that the The arch span is reduced.
具体实施中,以每1环拱顶构件与相应配置的10~20环底板构件、5~10环立柱构件和纵梁构件、3环侧墙构件以及3环中板构件构成一节整环,以各节整环逐环整体沿纵向推进;在沿纵向推进的过程中,每安装4环底板构件进行1次肥槽回填,每安装16环底板构件进行一次仰拱填充;每安装2~4节整环对各构件之间的榫槽进行注浆;每安装4节整环对拱顶上部空隙进行注浆。In the specific implementation, each 1-ring dome member and correspondingly arranged 10-20-ring floor members, 5-10-ring column members and longitudinal beam members, 3-ring side wall members and 3-ring mid-plate members constitute a complete ring. The whole section of the whole ring is advanced along the longitudinal direction as a whole; in the process of advancing along the longitudinal direction, every 4-ring base plate member is installed to carry out a backfilling of the fertilizer groove, and every 16-ring base member is installed to carry out an inverted arch filling; every 2-4 The whole ring is grouted for the tenon and groove between the components; every 4th whole ring is installed, the upper part of the dome is grouted.

Claims (5)

  1. 桩锚围护结构体系中装配式地铁车站全吊装施工方法,其特征是:所述装配式地铁车站是由各预制构件拼装构成,所述各预制构件包括:底板构件(1)、立柱构件(2)、纵梁构件(3)、侧墙构件(4)、中板构件(5)和拱顶构件(6);The construction method for the full hoisting of a prefabricated subway station in a pile-anchor enclosure structure system is characterized in that: the prefabricated subway station is assembled by various prefabricated components, and each prefabricated component includes: a bottom plate member (1), a column member ( 2), longitudinal beam member (3), side wall member (4), middle plate member (5) and vault member (6);
    所述全吊装施工方法是采用单台龙门吊(7)按如下过程实施吊运和拼装:The full hoisting construction method is to use a single gantry crane (7) to carry out hoisting and assembling according to the following process:
    步骤1:铺设精平条带Step 1: Lay the Finish Flat Strip
    沿车站纵向布置三条精平条带,分别是中间条带(7a)和分处在两侧的侧边条带(7b),相邻精平条带之间铺设垫层(8);在所述垫层(8)与底板构件(1)之间预留空隙,在底板构件(1)分段安装后针对所述空隙采用自密实砼进行仰拱填充;Three fine-leveling strips are arranged longitudinally along the station, namely the middle strip (7a) and the side strips (7b) on both sides, and a cushion (8) is laid between adjacent precision-leveling strips; A space is reserved between the cushion layer (8) and the base plate member (1), and self-compacting concrete is used to fill the inverted arch for the space after the base plate member (1) is installed in sections;
    步骤2:拼装底板Step 2: Assemble the Bottom Plate
    存放区的底板构件(1)由龙门吊(7)运输至安装位置;采用穿心千斤顶张拉牵引纵移,侧向千斤顶配合微调横移安装到位,在相邻底板构件(1)之间张拉连接,继之进行肥槽浇筑,完成底板安装;The floor member (1) of the storage area is transported to the installation position by the gantry crane (7); the through-core jack is used for tensioning and traction longitudinal movement, and the lateral jack is installed in place with the fine-tuning lateral movement, and is tensioned between the adjacent floor members (1). connection, followed by pouring the fertilizer tank to complete the installation of the bottom plate;
    步骤3:拼装立柱和纵梁Step 3: Assemble the columns and stringers
    将龙门吊(7)中的主吊具(7a)和副吊具(7b)分别吊挂在立柱构件(2)顶端和底端的吊点上,使立柱构件(2)自存放区呈水平吊运,到达位置后调整主吊具(7a)和副吊具(7b)的相对提吊高度,使立柱构件(2)由水平翻转呈竖直,将立柱构件(2)的底端朝向设置在底板上的杯口(2a)中进行底部定位,在所述立柱构件(2)的顶端设置套箍,由一端固定在套箍上的斜拉绳对立柱构件(2)进行竖直定位,完成立柱构件(2)的底部定位和竖直定位之后,在杯口(2a)的空隙中浇注砼,待砼固结即完成立柱构件(2)的安装;再采用龙门吊(7)中的主吊具(7a)将纵梁构件(3)呈水平吊装到位,在纵梁构件(3)与立柱构件(2)之间设置榫槽对接,并进行螺杆连接;Hang the main spreader (7a) and the auxiliary spreader (7b) of the gantry crane (7) on the lifting points at the top and bottom ends of the column member (2) respectively, so that the column member (2) is hoisted horizontally from the storage area. After reaching the position, adjust the relative lifting height of the main spreader (7a) and the auxiliary spreader (7b), so that the column member (2) is turned from horizontal to vertical, and the bottom end of the column member (2) is set on the bottom plate. Bottom positioning is performed in the cup mouth (2a) above, a ferrule is arranged at the top of the column member (2), and the column member (2) is vertically positioned by an oblique stay rope fixed at one end on the ferrule to complete the column. After the bottom positioning and vertical positioning of the member (2), pour concrete in the gap of the cup mouth (2a), and the installation of the column member (2) is completed after the concrete is consolidated; then the main spreader in the gantry crane (7) is used. (7a) The longitudinal beam member (3) is hoisted into place horizontally, and the tongue and groove butt joint is arranged between the longitudinal beam member (3) and the column member (2), and screw connection is performed;
    步骤4:拼装两边侧墙Step 4: Assemble the side walls on both sides
    将龙门吊(7)中的主吊具(7a)和副吊具(7b)分别吊挂在侧墙构件(4)的顶端和底端,使侧墙构件(4)自存放区呈水平吊运,到达位置后调整主吊具(7a)和副吊具(7b)的相对提吊高度,使侧墙构件(4)由水平翻转呈竖直进行拼装,拼装中采用千斤顶张拉牵引实现侧墙构件(4)的纵向位移,由设置在车站维护结构中的伸缩杆对侧墙构件(4)的顶端在外侧进行推或拉,实现墙面构件(4)的竖直度调整;Hang the main spreader (7a) and the auxiliary spreader (7b) of the gantry crane (7) on the top and bottom ends of the side wall members (4), respectively, so that the side wall members (4) are hoisted horizontally from the storage area. , after reaching the position, adjust the relative lifting height of the main spreader (7a) and the auxiliary spreader (7b), so that the side wall member (4) is assembled vertically from horizontal flipping, and the side wall is realized by jack tensioning and pulling during the assembly. For the longitudinal displacement of the member (4), the top end of the side wall member (4) is pushed or pulled on the outside by the telescopic rod arranged in the station maintenance structure, so as to realize the verticality adjustment of the wall member (4);
    步骤5:拼装中板Step 5: Assemble the middle plate
    采用龙门吊(7)中主吊具(7a)将中板构件(5)自存放区呈水平吊运至设定位置,以纵梁构件(3)的顶端和侧墙构件(4)的腰部牛腿为支撑,固定安装中板构件(5);The main sling (7a) of the gantry crane (7) is used to lift the middle plate member (5) horizontally from the storage area to the set position, and the top of the longitudinal beam member (3) and the waist of the side wall member (4) The legs are used as supports, and the middle plate member (5) is fixedly installed;
    步骤6:拼装顶板Step 6: Assemble the top plate
    将构成顶板的左右两块顶板预制件在基坑外拼装台架上拼装成整体的顶板构件(6);采用龙门吊(7)中的主吊具(7a)将顶板构件(6)进行水平吊运,使顶板构件(6)的两端拱脚与两边的侧墙构件一一对接,实现车站主体封闭成环。The two left and right roof prefabricated parts constituting the roof are assembled on the assembling bench outside the foundation pit to form an integral roof member (6); the roof member (6) is horizontally hoisted by the main hanger (7a) in the gantry crane (7). In this way, the arches at both ends of the roof member (6) are connected with the side wall members on both sides one by one, so that the main body of the station is closed into a ring.
  2. 根据权利要求1所述的桩锚围护结构体系中装配式地铁车站全吊装施工方法,其特征是:以每1环拱顶构件与相应配置的10~20环底板构件、5~10环立柱构件和纵梁构件、3环侧墙构件以及3环中板构件构成一节整环,以各节整环逐环整体沿纵向推进。The full hoisting construction method of a prefabricated subway station in a pile-anchor enclosure structure system according to claim 1, characterized in that: every 1 ring of vault members and correspondingly configured 10-20 ring floor members and 5-10 ring columns The members and the longitudinal beam members, the 3-ring side wall members and the 3-ring middle plate members constitute a whole ring, and the whole ring is advanced in the longitudinal direction as a whole.
  3. 根据权利要求2所述的桩锚围护结构体系中装配式地铁车站全吊装施工方法,其特征是:在所述沿纵向推进的过程中,每安装4环底板构件进行1次肥槽回填,每安装16环底板构件进行一次仰拱填充;每安装2~4节整环对各构件之间的榫槽进行注浆;每安装4节整环对拱顶上部空隙进行注浆。The construction method for full hoisting of a prefabricated subway station in a pile-anchor enclosure structure system according to claim 2, characterized in that: in the process of advancing along the longitudinal direction, the backfilling of the fertilizer trough is performed once for each installation of 4-ring floor members, The inverted arch is filled once every 16 ring bottom members are installed; the tongue and groove between the components are grouted every 2 to 4 rings are installed; the upper space of the vault is grouted every 4 rings are installed.
  4. 根据权利要求1所述的桩锚围护结构体系中装配式地铁车站全吊装施工方法,其特征是:所述步骤6中顶板拼装是按如下过程进行:The full hoisting construction method for a prefabricated subway station in a pile-anchor enclosure structure system according to claim 1, characterized in that: in the step 6, the roof assembling is carried out according to the following process:
    所述顶板构件(6)是由预制成型的左右两块顶板构件拼装构成,分别是顶板左侧构件和顶板右侧构件;所述顶板左侧构件和顶板右侧构件在对拼处由钢筋张拉锚固;在沿顶板构件的跨度方向分布至少四个吊点,包括分别位于左右两块顶板构件的近端的近端吊点,以及分别位于左右两块顶板构件的远端的远端吊点;The top plate member (6) is composed of two prefabricated left and right top plate members assembled, which are respectively the left side member of the top plate and the right member of the top plate; Pull anchor; distribute at least four lifting points along the span direction of the roof members, including the proximal lifting points respectively located at the proximal ends of the left and right roof members, and the distal lifting points respectively located at the distal ends of the left and right roof members ;
    基于顶板结构确定顶板构件平衡吊装时各吊点处吊钩的设定吊重;在所述顶板构件(6)的提吊过程中,控制各吊点处吊钩保持为各自的设定吊重,对顶板构件进行平衡吊装;在所述顶板构件(6)与侧墙构件(4)就位安装时,控制各吊点处吊钩的受力用于微调顶板构件(6)的拱口跨度,使顶板构件(6)的拱口跨度与两边侧墙构件(4)之间的净宽相一致,以此保证顶板构件(6)在两边的侧墙构件(4)的顶端准确就位。Determine the set hoisting weight of the hooks at each hoisting point when the roof member is balanced and hoisted based on the roof structure; during the hoisting process of the roof member (6), control the hooks at each hoisting point to maintain their respective set hoisting weights , carry out balanced hoisting of the roof member; when the roof member (6) and the side wall member (4) are installed in place, the force of the hooks at each lifting point is controlled to fine-tune the arch span of the roof member (6). , so that the span of the arch of the roof member (6) is consistent with the clear width between the side wall members (4) on both sides, so as to ensure that the roof member (6) is accurately positioned at the top of the side wall members (4) on both sides.
  5. 根据权利要求4所述的桩锚围护结构体系中装配式地铁车站全吊装施工方法,其特征是:所述控制各吊钩的受力用于微调顶板构件(6)的拱口跨度为如下两种方式:The full hoisting construction method for a prefabricated subway station in a pile-anchor enclosure structure system according to claim 4, characterized in that: the control of the force of each hook is used to fine-tune the span of the arch of the roof member (6) as follows Two ways:
    方式一:增加两个远端吊点的受力,和/或减小两个近端吊点的受力,使顶板构件(6)的拱口跨度加大;Method 1: Increase the force of the two distal lifting points, and/or reduce the force of the two proximal lifting points, so that the span of the arch of the roof member (6) is increased;
    方式二:减小两个远端吊点的受力,和/或增加两个近端吊点的受力,使顶板构件(6)的拱口跨度减小。Method 2: reduce the force of the two distal suspension points, and/or increase the force of the two proximal suspension points, so that the span of the arch of the top plate member (6) is reduced.
PCT/CN2022/079061 2021-06-01 2022-03-03 Assembly-type subway station full-hoisting construction method in pile-anchor retaining structure system WO2022184136A1 (en)

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