CN210086301U - Full-composite assembly type subway station prefabricated part mechanized transportation system - Google Patents
Full-composite assembly type subway station prefabricated part mechanized transportation system Download PDFInfo
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- CN210086301U CN210086301U CN201920606946.0U CN201920606946U CN210086301U CN 210086301 U CN210086301 U CN 210086301U CN 201920606946 U CN201920606946 U CN 201920606946U CN 210086301 U CN210086301 U CN 210086301U
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Abstract
The utility model discloses a mechanized conveying system of full compound assembly formula subway station prefabricated component, its characterized in that: a plurality of pre-buried tracks extending longitudinally along the subway station are pre-manufactured below the prefabricated top plate (9) and the prefabricated middle plate (16) and used for hoisting the electric hoist; the embedded rail under each plate is in butt joint connection with the embedded rail under the adjacent plate to form a whole, and the electric block is used for lifting the prefabricated part in a longitudinally slidable manner along the whole embedded rail; the electric hoist of the prefabricated top plate (9) is used for hoisting and installing the prefabricated middle longitudinal beam (15) and the prefabricated middle plate (16) of the next layer, and the electric hoist of the prefabricated middle plate (16) of the previous layer is used for hoisting and installing the prefabricated middle longitudinal beam (15) and the prefabricated middle plate (16) of the next layer or the prefabricated cushion layer (23) of the bottom plate of the next layer. The utility model discloses a full mechanized transportation of prefabricated component below full compound assembled subway station roof is assembled, saves investment and time limit for a project, realizes sustainable development and green construction.
Description
Technical Field
The utility model belongs to the underground works field of subway station, concretely relates to mechanized conveying system of full compound assembly formula subway station prefabricated component.
Background
The existing underground structure engineering such as a subway station structure has two structural forms, namely an assembled underground structure and a full open cut cast-in-place underground structure, but the existing underground structure engineering has respective defects. In order to overcome these problems, a full-composite fabricated subway station structure has been developed.
However, the following problems exist in the construction process of the fully-composite assembly type subway station:
(1) the fully-composite assembly type subway station is characterized in that a station top longitudinal beam and a top plate are firstly hoisted in the construction process, prefabricated parts below the top plate need to be hoisted from a working well, a series of horizontal and vertical movements are carried out to reach a designated position, and assembly is completed, and a mature technology does not exist at present. The fully-composite assembled underground station also relates to a large amount of post-cast reinforced concrete structures, and the transportation of materials such as reinforcing steel bars and the like also has certain difficulty.
(2) According to calculation, the weight of a single-piece prefabricated middle plate exceeds 10t, the weight of a single-span middle longitudinal beam reaches 25t, the internal space of a station is narrow, and horizontal transportation and assembly of the prefabricated part are difficult to achieve by the existing mechanical trolley. The research and development of the novel mechanical trolley has long period and high cost.
(3) The mechanical equipment is adopted for transporting and assembling the prefabricated parts, the requirement on the ground flatness is high, the collision between the prefabricated parts and the existing parts caused by the uneven ground can be greatly damaged, and the use of the mechanical trolley is limited.
(4) At present, the pipeline suspension above a subway station and a rail top air channel are mainly solved by adopting a mode of driving expansion bolts and embedded bars, certain damage is caused to the structure, and long-term reliability in centuries engineering is difficult to guarantee.
In summary, the key technologies to be solved for the fully-composite assembly type subway station include:
(1) horizontal transportation and assembly of a prefabricated middle plate, a prefabricated middle longitudinal beam and a prefabricated cushion layer are carried out on the fully-composite assembled underground station;
(2) transporting the cast-in-place structural material of the fully-composite fabricated underground station;
(3) and (3) suspension of a fully-composite assembly type underground station pipeline system and construction of a rail top air channel.
SUMMERY OF THE UTILITY MODEL
At least one in defect or improvement demand more than prior art, the utility model provides a complete compound assembled subway station prefabricated component mechanized transportation system reserves the track on precast concrete board, and the electric hoist that can walk is installed on the track, through the level and the vertical migration of different electric hoist combinations, realizes hoist and mount and the concatenation of longeron, prefabricated bed course and reinforcing bar etc. in the prefabricated medium plate of complete compound assembled subway station, the prefabrication.
In order to achieve the above object, according to the utility model discloses an aspect provides a mechanized conveying system of full compound assembly formula subway station prefabricated component, wherein:
a plurality of pre-embedded rails extending longitudinally along the subway station are pre-manufactured below the pre-manufactured top plate and the pre-manufactured middle plate and used for hoisting the electric hoist; the embedded rail under each plate is in butt joint connection with the embedded rail under the adjacent plate to form a whole, and the electric block is used for lifting the prefabricated part in a longitudinally slidable manner along the whole embedded rail;
the electric hoist of the prefabricated top plate is used for hoisting and installing the prefabricated middle longitudinal beam and the prefabricated middle plate of the next layer, and the electric hoist of the prefabricated middle plate of the upper layer is used for hoisting and installing the prefabricated middle longitudinal beam and the prefabricated middle plate of the next layer or the prefabricated cushion layer of the bottom plate of the next layer.
Preferably, the pre-buried track of the prefabricated top plate is also used for installing the prefabricated pipeline bracket after the electric hoist is removed;
the pre-buried track of prefabricated medium plate still is used for installing prefabricated rail top wind channel and prefabricated pipeline bracket after demolising electric block.
Preferably, an embedded track a and an embedded track b are arranged below a prefabricated top plate on one side of each transverse side of each stand column of the subway station, an electric hoist a and an electric hoist i are sequentially arranged on the integral embedded track where the embedded track a is located from front to back, and an electric hoist b and an electric hoist j are sequentially arranged on the integral embedded track where the embedded track b is located from front to back;
an embedded track c and an embedded track d are arranged under the prefabricated top plate on the other side, an electric hoist c and an electric hoist k are sequentially arranged on the whole embedded track where the embedded track c is located from front to back, and only one electric hoist d is arranged on the whole embedded track where the embedded track d is located.
Preferably, an embedded track e and an embedded track f are arranged below the prefabricated middle plate on one side of each transverse side of each stand column of the subway station, only one electric hoist e is arranged on the integral embedded track where the embedded track e is located, and only one electric hoist f is arranged on the integral embedded track where the embedded track f is located;
an embedded track g and an embedded track h are arranged under the prefabricated middle plate on the other side, only one electric hoist g is arranged on the whole embedded track where the embedded track g is located, and only one electric hoist h is arranged on the whole embedded track where the embedded track h is located.
Preferably, a sling is connected between the electric hoist a and the electric hoist b and used for hoisting and installing the prefabricated middle longitudinal beam on the next layer, the sling supports one end of the prefabricated middle longitudinal beam, the sling is connected between the electric hoist i and the electric hoist j and used for hoisting and installing the prefabricated middle longitudinal beam on the next layer and supports the other end of the prefabricated middle longitudinal beam;
traction ropes are respectively arranged at the lower ends of the electric hoist c and the electric hoist k and are respectively connected to two ends of the supported prefabricated middle longitudinal beam in a releasable manner and used for drawing the prefabricated middle longitudinal beam to a longitudinal beam mounting position of the upright post.
Preferably, slings are respectively arranged at the lower ends of the electric hoists a and the electric hoists b and are used for hoisting and installing the prefabricated middle plate of the next layer; one end of the prefabricated middle plate is positioned in a hanging ring formed by one sling in a releasable manner, and the other end of the prefabricated middle plate is positioned in a hanging ring formed by the other sling in a releasable manner;
one of the electric block c and the electric block k and the electric block d form a pair, and slings are respectively arranged at the lower ends of the electric blocks and used for hoisting and installing the prefabricated middle plate of the next layer; one end of the prefabricated middle plate is positioned in a hanging ring formed by one sling in a releasable mode, and the other end of the prefabricated middle plate is positioned in a hanging ring formed by the other sling in a releasable mode.
Preferably, slings are respectively arranged at the lower ends of the electric hoists e and f and are used for hoisting and installing the next layer of prefabricated middle plate or prefabricated cushion layer; one end of the prefabricated middle plate or the prefabricated cushion layer is positioned in a hanging ring formed by one sling in a releasable manner, and the other end of the prefabricated middle plate or the prefabricated cushion layer is positioned in a hanging ring formed by the other sling in a releasable manner;
slings are respectively arranged at the lower ends of the electric hoist g and the electric hoist h and are used for hoisting and installing a next layer of prefabricated middle plate or prefabricated cushion layer; one end of the prefabricated middle plate or the prefabricated cushion layer is positioned in a hanging ring formed by one sling in a releasable mode, and the other end of the prefabricated middle plate or the prefabricated cushion layer is positioned in a hanging ring formed by the other sling in a releasable mode.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
1. the utility model discloses a mechanized conveyor system of full compound assembled subway station prefabricated component has realized the full mechanized transportation of prefabricated component below the full compound assembled subway station roof and has assembled, promotes the implementation of full compound assembled subway station, has saved a large amount of costs than the special platform truck of development, saves investment and time limit for a project, green construction, and energy-concerving and environment-protective, the technology is advanced, realizes sustainable development and green and builds.
2. The utility model discloses a mechanized conveyor system of full compound assembled subway station prefabricated component can also provide the material such as the cast-in-place reinforcing bar of full compound assembled subway station and transport, saves a large amount of manpower and materials.
3. The utility model discloses a mechanized conveyor system of full compound assembled subway station prefabricated component, the electric block that uses can recycle and retrieve, for example underground one deck electric block finishes using the back, can be applied to two layers in the underground, does not have the waste of temporary equipment.
4. The utility model discloses a mechanized transportation system of full compound assembly formula subway station prefabricated component utilizes pre-buried track suspension bracket and pipeline, constructs the roof of a track wind channel, replaces the traditional method of beating expansion bolts and bar planting, improves durability and quality, has effectively solved the fixed problem of traditional crab-bolt; the pre-buried track of roof can cooperate the pipeline use above the roof, and the pre-buried track of medium plate can cooperate the use of rail top wind channel built-in fitting, and the use amount of the bar planting that has significantly reduced and expansion bolts, safe and reliable.
Drawings
Fig. 1 is a schematic plan view of a fully-assembled underground station according to the present invention;
fig. 2 is a schematic cross-sectional view of the mechanized transportation system for prefabricated components of the fully-assembled subway station of the present invention;
fig. 3 is a schematic layout view of the prefabricated roof embedded rail and the electric block of the fully-composite assembly type subway station prefabricated component mechanized transportation system of the present invention;
fig. 4 is a schematic layout view of the prefabricated middle plate embedded track and the electric block of the fully-composite assembly type subway station prefabricated component mechanized transportation system of the utility model;
fig. 5 is a schematic diagram of the hoisting posture of the longitudinal beam in the prefabrication of the fully-composite assembly type subway station prefabricated component mechanized transportation system of the utility model;
fig. 6 is a schematic diagram of the hoisting posture of the prefabricated middle plate/cushion layer of the fully-composite assembly type subway station prefabricated component mechanized transportation system of the utility model;
fig. 7 is the utility model discloses a whole front view schematic diagram of full compound assembled subway station.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to the following embodiments.
As a preferred embodiment of the utility model, as shown in fig. 1-6, the utility model provides a complete compound assembled subway station prefabricated component mechanized transportation system, subway station uses about two to stride as the example, more stride the same reason setting, wherein:
a plurality of pre-embedded rails extending longitudinally along the subway station are pre-manufactured below the prefabricated top plate 9 and the prefabricated middle plate 16 and used for hoisting the electric hoist; the embedded rail under each plate is in butt joint connection with the embedded rail under the adjacent plate to form a whole, and the electric block is used for lifting the prefabricated part in a longitudinally slidable manner along the whole embedded rail;
the electric hoist of the prefabricated top plate 9 is used for hoisting and installing the prefabricated middle longitudinal beam 15 and the prefabricated middle plate 16 of the next layer, and the electric hoist of the prefabricated middle plate 16 of the previous layer is used for hoisting and installing the prefabricated middle longitudinal beam 15 and the prefabricated middle plate 16 of the next layer or the prefabricated cushion layer 23 of the bottom plate of the next layer.
Preferably, the pre-buried track of the prefabricated top plate 9 is also used for installing the prefabricated pipe bracket 10 after the electric hoist is removed; the pre-buried track of the prefabricated middle plate 16 is also used for installing the prefabricated track top air duct 28 and the prefabricated pipeline bracket 10 after the electric hoist is removed.
As shown in fig. 2-3, an embedded track a110 and an embedded track b111 are arranged under the prefabricated top plate 9 on one side of each transverse side of each upright of the subway station, an electric hoist a118 and an electric hoist i126 are sequentially arranged on the integral embedded track where the embedded track a110 is located, and an electric hoist b119 and an electric hoist j127 are sequentially arranged on the integral embedded track where the embedded track b111 is located; an embedded track c112 and an embedded track d113 are arranged below the prefabricated top plate 9 on the other side, an electric hoist c120 and an electric hoist k128 are sequentially arranged on the integral embedded track where the embedded track c112 is located, and only one electric hoist d121 is arranged on the integral embedded track where the embedded track d113 is located.
As shown in fig. 2 and 4, an embedded track e114 and an embedded track f115 are arranged below the prefabricated middle plate 16 on one side of each transverse side of each upright of the subway station, only one electric hoist e122 is arranged on the integral embedded track where the embedded track e114 is located, and only one electric hoist f123 is arranged on the integral embedded track where the embedded track f115 is located;
an embedded track g116 and an embedded track h117 are arranged below the prefabricated middle plate 16 on the other side, only one electric hoist g124 is arranged on the whole embedded track where the embedded track g116 is located, and only one electric hoist h125 is arranged on the whole embedded track where the embedded track h117 is located.
As shown in fig. 5, a sling is connected between the electric hoist a118 and the electric hoist b119 for lifting and installing the prefabricated middle longitudinal beam 15 of the next layer, the sling supports one end of the prefabricated middle longitudinal beam 15, a sling is connected between the electric hoist i126 and the electric hoist j127 for lifting and installing the prefabricated middle longitudinal beam 15 of the next layer, and the sling supports the other end of the prefabricated middle longitudinal beam 15; the lower ends of the electric hoist c120 and the electric hoist k128 are respectively provided with a traction cable which is respectively connected to two ends of the supported prefabricated middle longitudinal beam 15 in a releasable way and used for drawing the prefabricated middle longitudinal beam to a longitudinal beam mounting position of the upright post.
As shown in fig. 6, slings are respectively arranged at the lower ends of the electric hoists a118 and b119 for hoisting and installing the prefabricated middle plate 16 of the next layer; one end of the prefabricated middle plate 16 is positioned in a hanging ring formed by one sling in a releasable manner, and the other end of the prefabricated middle plate 16 is positioned in a hanging ring formed by the other sling in a releasable manner; any one of the electric block c120 and the electric block k128 and the electric block d121 form a pair, and slings are respectively arranged at the lower ends of the electric blocks and used for hoisting and installing the prefabricated middle plate 16 of the next layer; one end of the prefabricated middle plate 16 is positioned in a hanging ring formed in a releasable manner by one sling, and the other end of the prefabricated middle plate 16 is positioned in a hanging ring formed in a releasable manner by the other sling.
As shown in fig. 6, slings are respectively arranged at the lower ends of the electric hoists e122 and f123 for hoisting and installing the prefabricated middle plate 16 or the prefabricated cushion layer 23 of the next layer; one end of the prefabricated middle plate 16 or the prefabricated cushion layer 23 is positioned in a hanging ring formed by a sling in a releasable manner, and the other end of the prefabricated middle plate 16 or the prefabricated cushion layer 23 is positioned in a hanging ring formed by another sling in a releasable manner; slings are respectively arranged at the lower ends of the electric hoists g124 and h125 and are used for hoisting and installing the next layer of prefabricated middle plate 16 or prefabricated cushion layer 23; one end of the prefabricated middle plate 16 or the prefabricated mat 23 is positioned in a hanging ring which is formed by one sling in a releasable manner, and the other end of the prefabricated middle plate 16 or the prefabricated mat 23 is positioned in a hanging ring which is formed by the other sling in a releasable manner.
The utility model discloses a mechanized transportation system of full compound assembled subway station prefabricated component utilizes pre-buried track a110 under the prefabricated roof promptly, pre-buried track b111, pre-buried track c112, pre-buried track d113 and electric block a118, electric block b119, electric block c120, electric block d121, electric block i126, electric block j127, electric block k128 is 7 electric block realization in total to the transportation and the assembly of longeron 15 and prefabricated medium plate 16 in the prefabrication, and utilize its transportation ability handling medium plate cast-in-place layer 20, the required material of the cast-in-place layer 22 construction of underground one deck side wall etc..
Similarly, the prefabricated cushion layer 23 is transported and assembled by using 4 electric hoists, namely the prefabricated middle slab lower embedded track e114, the embedded track f115, the embedded track g116, the embedded track h117, the electric hoist e122, the electric hoist f123, the electric hoist g124 and the electric hoist h125, and materials required by construction of the cast-in-place bottom plate 25 and the underground two-layer side wall cast-in-place layer 27 are hoisted by using the transportation capacity of the prefabricated middle slab lower embedded track e and the embedded track f 115.
The utility model discloses only to the transportation and the assembly of prefabricated component and construction material below the roof, before using, the station has accomplished underground continuous wall 1, steel column 4, roof cast-in-place layer 112, prefabricated roof 27 equal construction, wherein pre-buried track a110, pre-buried track b111, pre-buried track c112, pre-buried track d113 bury in prefabricated roof 27 promptly when prefabricating in the prefabrication field; the embedded rail e114, the embedded rail f115, the embedded rail g116 and the embedded rail h117 are embedded in the prefabrication middle plate 16 when prefabricating in a prefabrication field.
The utility model also provides a transportation method of full compound assembled subway station prefabricated component mechanized transportation system, the mechanized transportation method of longeron, the mechanized transportation method of prefabricated medium plate, the mechanized transportation method of prefabricated bed course medium plate in prefabricating.
The concrete construction steps are as follows:
s1, respectively installing an electric hoist a118, an electric hoist b119, an electric hoist c120, an electric hoist d121, an electric hoist i126, an electric hoist j127 and an electric hoist k128 on the pre-buried track a110, the pre-buried track b111, the pre-buried track c112 and the pre-buried track d 113; the layout of the pre-buried slide rail and the electric hoist is shown in figure 2;
and S2, a chain is connected between the electric hoist a118 and the electric hoist b119, and a chain is connected between the electric hoist i126 and the electric hoist j 127. Firstly, placing the front end of a prefabricated middle longitudinal beam 15 on a connecting chain between an electric hoist a118 and an electric hoist b119 by using an external crane, synchronously moving the two electric hoists and external hoisting equipment forwards, and then placing the rear end of the prefabricated middle longitudinal beam 15 on the connecting chain between an electric hoist i126 and an electric hoist j 127; at this time, the prefabricated middle longitudinal beam 15 is in a longitudinal posture along the station, and the front end and the rear end of the prefabricated middle longitudinal beam are respectively lapped on the chain, as shown in fig. 5;
s3, synchronously operating the four electric hoists, and longitudinally transporting the prefabricated middle longitudinal beam 15 to a position needing to be placed along the station;
s4, simultaneously lowering the electric hoist b119 and the electric hoist j127 to enable the prefabricated middle longitudinal beam 15 to droop and gradually deflect to the midspan side;
s6, moving the electric hoist c120 and the electric hoist k128 to the opposite side of the prefabricated middle longitudinal beam 15, and respectively connecting a traction steel cable to the prefabricated middle longitudinal beam 15;
s7, synchronously pulling the electric hoist c120 and the electric hoist k128 to pull the prefabricated middle longitudinal beam 15 to the middle-span placement position; continuously lowering the prefabricated middle longitudinal beam 15 to finish assembly;
s8, hoisting the prefabricated middle plate 16 from the working well by using an external crane, and respectively suspending two ends of the prefabricated middle plate on chain chains of the electric hoist a118 and the electric hoist b 119; the lifting posture is as shown in figure 6;
s9, synchronously operating the electric hoist a118 and the electric hoist b119, and longitudinally transporting the prefabricated middle plate 16 to the position above the installation position along the station;
and S10, simultaneously lowering the electric hoist a118 and the electric hoist b119, and splicing the prefabricated middle plate 16 in the clamping grooves of the underground continuous wall 1 and the prefabricated middle longitudinal beam 15 by utilizing manual or mechanical proper adjustment to finish splicing. Similarly, the electric hoist c120 and the electric hoist d121 are used for assembling the prefabricated middle plate 16 on the other side;
s11, constructing middle plate cast-in- place layers 20 and 22 and a lower two-layer side wall cast-in-place layer, wherein a pre-buried track e114, a pre-buried track f115, a pre-buried track g116 and a pre-buried track h117 are pre-buried in the prefabricated middle plate 16 in a prefabrication factory and are connected when the prefabricated middle plate 16 is assembled;
s12, respectively installing an electric hoist e122, an electric hoist f123, an electric hoist g124 and an electric hoist h125 on the pre-buried track e114, the pre-buried track f115, the pre-buried track g116 and the pre-buried track h 117;
s13, hoisting the prefabricated cushion layer 23 from the working well by using an external crane, and respectively suspending two ends of the prefabricated cushion layer on chain chains of the electric hoist e122 and the electric hoist f 123; as shown in FIG. 6;
s14, synchronously operating the electric hoist e122 and the electric hoist f123, and longitudinally transporting the prefabricated cushion layer 23 to the position above the installation position along the station;
s15, simultaneously lowering the electric hoist e122 and the electric hoist f123, and properly adjusting by manpower or machinery to finish the assembly of the prefabricated cushion layer 23. Similarly, the electric hoist g124 and the electric hoist h125 are utilized to assemble the prefabricated cushion layer 23 on the other side;
s16, constructing a cast-in-place bottom plate 25 and an underground two-layer side wall cast-in-place layer 27, dismantling the electric hoist, and closing the hoisting hole to complete construction.
The utility model discloses an other technical index as follows.
The utility model discloses the pre-buried track a110, pre-buried track b111, pre-buried track c112, pre-buried track d113, pre-buried track e114, pre-buried track f115, pre-buried track g116, pre-buried track h117 8 pre-buried tracks altogether need the segmentation pre-buried in prefabricated roof 27, prefabricated medium plate 16, closely link to each other with the inboard reinforcing bar, and can bear prefabricated component's weight. After the prefabricated top plate 27 and the prefabricated middle plate 16 are assembled, proper spot welding is carried out on the joint of the rails, and smoothness of the rails is guaranteed.
The utility model discloses in mention electric block a118, electric block b119, electric block c120, electric block d121, electric block i126, electric block j127, electric block k128 totally 7 electric block power and handling ability need satisfy the requirement of handling prefabricated component.
The utility model discloses the chain that mentions in need can bear prefabricated component's weight.
The utility model discloses in mention electric block a118, electric block b119, electric block c120, electric block d121, electric block i126, electric block j127, electric block k128 totally 7 electric blocks, can realize cyclic utilization and retrieve.
The prefabricated middle longitudinal beam 15 mentioned in the utility model is hoisted in a whole span with the weight of about 25t, and is hoisted by 4 electric hoists, and the weight shared by each electric hoist is about 6 t; the utility model discloses in the prefabricated medium plate 16 that mentions use 2m width to be a slice, and weight is about 12t, hoists and splices by two electric block, shares also about 6t at every electric block's weight.
The utility model discloses in mention pre-buried track a110, pre-buried track b111, pre-buried track c112, pre-buried track d113, pre-buried track e114, pre-buried track f115, pre-buried track g116, pre-buried track h117 need not to demolish after 8 pre-buried tracks in total use. The embedded track a110, the embedded track b111, the embedded track c112 and the embedded track d113 can be used for suspending a pipeline under a roof; the embedded track e114, the embedded track f115, the embedded track g116 and the embedded track h117 can be used in cooperation with an installation rail top air duct and a suspension pipeline, so that the use amount of embedded bars and expansion bolts is greatly reduced, and the method is safe and reliable.
The utility model discloses in mention 8 electric block and can be used for the cast-in-place layer of two layer side walls in middle plate 20, 22 underground, cast-in-place layer, cast-in-place bottom plate 25, two layer side walls in underground cast-in-place layer 27 handling construction material during construction used.
As shown in fig. 7, the utility model also provides a full compound assembled underground structure (for example subway station), adopted aforementioned full compound assembled subway station prefabricated component mechanized transportation system and method, wherein:
comprises an underground wall 1 and a main structure upright post; the top of the underground wall is provided with a crown beam 5 and a steel structure clamping groove 2 for pre-embedding and installing the prefabricated middle plate in the middle part, the steel structure clamping groove is used for positioning and supporting the prefabricated middle plate when the prefabricated middle plate is hoisted, the height of the clamping groove is greater than the thickness of the middle plate, and the middle plate can still be ensured to be positioned at the designed elevation by allowing relative movement of the clamping groove and the middle plate when the elevation of the underground wall; the top of the main structure upright post is provided with a prefabricated top longitudinal beam 8, and the middle part of the main structure upright post is provided with a prefabricated middle longitudinal beam 15. The main structure upright column comprises a pile foundation 3 and a steel upright column 4, wherein the steel upright column 4 needs to be inserted into the pile foundation 3 to a certain depth, so that the reliable combination of the pile foundation 3 and the steel upright column is ensured; the steel upright column 4 is formed into a steel pipe concrete composite column by adopting a steel pipe concrete column, section steel concrete or outer concrete. A top plate prestress jack 11 is arranged between the crown beam 5 and the prefabricated top plate 9, and a middle plate prestress jack 19 is arranged between the steel structure clamping groove 2 and the prefabricated middle plate 16. Considering that certain errors need to be reserved for installation and positioning of the prefabricated parts, transverse prestress is respectively applied to the prefabricated parts of the top plate and the middle plate through the top plate prestress jack 11 and the middle plate prestress jack 19 to balance and offset the reserved errors, deformation of the underground wall is controlled, and safety and stability of the foundation pit and the surrounding construction are guaranteed. Each prefabricated plate is tensioned and locked into a whole in the longitudinal direction (in-paper direction) by adopting prestressed reinforcements or locking steel rods section by section.
The composite waterproof prestressed roof is formed by the prefabricated roof longitudinal beams 8, the prefabricated roof plates 9 arranged between the crown beams 5 and the prefabricated roof longitudinal beams 8, the prefabricated roof plates 9 arranged between two adjacent prefabricated roof longitudinal beams 8, the roof plate cast-in-situ layer 12 on the roof plates and the roof plate flexible waterproof layer 13 on the roof plate cast-in-situ layer.
The composite prestress middle plate is formed by the prefabricated middle longitudinal beams 15, the prefabricated middle plates 16 arranged between the steel structure clamping grooves 2 and the prefabricated middle longitudinal beams 15, the prefabricated middle plates 16 arranged between every two adjacent prefabricated middle longitudinal beams 15 and the middle plate cast-in-place layers 20 on the middle plates.
The prefabricated cushion layer 23, the bottom plate waterproof layer 24 and the cast-in-place bottom plate 25 which are sequentially arranged on the substrate from bottom to top form a composite waterproof bottom plate together.
The underground wall 1 and the side wall waterproof layer and the side wall cast-in-place layer which are sequentially arranged on the underground wall towards the inner side direction form a composite waterproof wall together.
The prefabricated top plate 9 is hung with a prefabricated pipeline bracket 10 through an embedded groove to form an integral prefabricated member. The prefabricated middle plate 16 is suspended with a prefabricated pipeline bracket 10 and a prefabricated rail top air duct 28 through an embedded groove, and is provided with a prefabricated pipeline sleeve 18 in a vertical through mode to form an integral prefabricated part. Grooves are reserved on the inner side of the crown beam 5, protruding tongues and grooves are reserved on two sides of the prefabricated top longitudinal beam 8, protruding tongues and grooves are reserved on two sides of the prefabricated middle longitudinal beam 15, and therefore the prefabricated top plate 9 and the prefabricated middle plate 16 can be conveniently hoisted and placed.
The composite waterproof prestressed top plate, the composite prestressed middle plate, the composite waterproof bottom plate and the composite waterproof wall are effectively connected to form a fully-wrapped waterproof fully-composite assembled underground structure, so that the problem of water leakage of the fully-assembled underground structure is solved, the limitation of the application range of the assembled underground structure is broken through, the composite waterproof prestressed underground structure can be applied to water-rich strata, areas with complex surrounding environment and high deformation control, and the composite waterproof prestressed top plate, the composite prestressed middle plate, the composite waterproof bottom plate and the composite waterproof wall can be powerfully pushed to be widely applied to underground engineering. The utility model replaces a large number of inner supports and templates of the conventional open cut cast-in-place structure, thereby saving investment; meanwhile, the prefabricated part can be pre-stressed, deformation of the assembled gap is balanced and offset, the surrounding environment can be effectively protected, and the safety of the foundation pit is ensured. The prefabricated part is manufactured in a factory and constructed mechanically, high quality and superior quality of underground structural engineering are achieved, traditional ceiling decoration is replaced, comprehensive pipeline standardization and mechanical installation are achieved through the pre-buried channel, investment and construction period are saved, green construction is achieved, energy is saved, environment is protected, the technology is advanced, sustainable development and green construction are achieved, practicability is high, and the underground structural engineering system has wide application space in the field of underground engineering.
The utility model discloses a reverse construction method of compound assembled underground structure, including following step:
s1, constructing an underground wall 1 and a main structure upright post, wherein a steel structure clamping groove 2 for mounting a prefabricated middle plate is pre-buried on the underground wall 1; in the step S1, the underground wall 1 adopts an underwater concrete casting underground diaphragm wall or a prefabricated underground wall; the construction method of the main structure column comprises the steps of constructing the pile foundation 3, hoisting the steel column 4 to be inserted into the pile foundation 3, and forming the steel pipe concrete composite column by the steel column 4 through a steel pipe concrete column, section steel concrete or outer concrete.
And S2, constructing the crown beam 5 and the retaining wall 6.
And S3, excavating to the lower excavation aspect 7 of the top plate beam, and hoisting the prefabricated top longitudinal beam 8 and the prefabricated top plate 9, wherein the prefabricated pipe support 10 is pre-embedded in the factory manufacturing process of the prefabricated top plate. Preferably, a groove is reserved during construction of the crown beam 5, and a protruding tongue-and-groove is reserved for the prefabricated top longitudinal beam 8 to be used for hoisting and placing the prefabricated top plate 9.
And S4, firstly applying prestress to the prefabricated roof 9 through a roof prestress jack 11 between the crown beam 5 and the prefabricated roof 9, then pouring a roof cast-in-situ layer 12, and constructing a roof flexible waterproof layer 13, wherein a plurality of soil discharging and feeding holes are longitudinally formed along the roof according to the soil discharging and feeding requirements.
And S5, synchronously excavating earth downwards to the lower excavation aspect 14 of the middle plate girder at the lower layer under the support of the precast beam slab system. Preferably, between S4-S5, after the roof precast beam slab system, the cast-in-place layer and the waterproof layer are completed, the pipeline can be moved back, backfilled and covered with soil, the traffic is recovered, and the influence on urban traffic and pipelines can be reduced.
And S6, hoisting the prefabricated middle longitudinal beam 15 and the prefabricated middle plate 16 by utilizing the upper layer unearthed and fed hole, wherein the prefabricated middle plate is provided with a suspension installation groove in which a prefabricated pipeline bracket 17, a pre-buried pipeline sleeve 18 and a prefabricated rail top air duct 28 are pre-buried in the factory manufacturing process. The underground wall 1 is pre-buried steel structure draw-in groove 2 in the medium plate elevation position, and prefabricated medium longitudinal beam 15 reserves protruding tongue-and-groove for the hoist and mount of prefabricated medium plate 16 are laid. During hoisting, the prefabricated middle longitudinal beam is inserted into a reserved steel structure clamping groove 2 of the underground continuous wall 1 and placed on a reserved middle longitudinal beam rabbet of the prefabricated middle longitudinal beam 15. The hoisting adopts the mechanized transportation technology of the prefabricated parts of the fully-composite assembly type subway station.
And S7, firstly, applying prestress to the prefabricated middle plate 16 by using the middle plate prestress jack 19 in the steel structure clamping groove 2, and then pouring a middle plate cast-in-place layer 20, wherein the unearthing and feeding holes of the middle plate correspond to the upper layer.
S8, synchronously excavating downwards under the support of the precast beam plate; and simultaneously constructing an underground layer of side wall waterproof layer 21 and an underground layer of side wall cast-in-place layer 22.
And S9, circulating downwards S5-S7, and excavating to the bottom of the foundation pit.
S10, mounting the prefabricated cushion layer 23, constructing the waterproof layer 24 of the bottom plate and casting the bottom plate 25 in situ. The hoisting of the cushion layer adopts the mechanical transportation technology of the fully-composite assembly type subway station prefabricated part.
S11, constructing a bottom plate layer side wall waterproof layer 26 and a bottom plate layer side wall cast-in-place layer 27; and synchronously and sequentially filling the soil discharging holes and the feeding holes.
Preferably, after S11, the method further comprises:
and S12, after the composite assembly type underground structure main body is finished and shield construction in the influence range of adjacent regions is finished, installing the prefabricated rail top air duct 28 through the suspension installation groove pre-embedded in the prefabricated middle plate.
The utility model discloses a waterproof full compound assembled underground structure of full package and construction method need not to erect support and template in the whole work progress, but synchronous construction operation under the board upper plate, and the time of waiting for the age to form shortens greatly, has a series of advantages such as green construction, quick convenient, safe high efficiency, environmental protection and energy saving, sparingly invest in, has wide application space.
The top plate, the middle plate prefabricated part and the cast-in-place layer replace an inner support and a template, the earth is excavated, fed, the prefabricated middle plate is hoisted and the assembling machine enters and exits by utilizing the arranged earth-excavating feed hole in the construction process from top to bottom, and the main structure is finished after the bottom plate is closed and the side wall is finished.
The structure cast-in-place layer comprises a top plate cast-in-place layer, a middle plate cast-in-place layer and a cast-in-place bottom plate, and the prefabricated components are used as templates during pouring, so that a large number of templates can be saved.
The construction method of the fully-composite assembly type underground structure is used for constructing from top to bottom, and the top plate prefabricated part, the cast-in-place layer, the middle plate prefabricated part and the cast-in-place layer are used for replacing an inner support system, so that the construction objects around the foundation pit can be effectively protected, and a large amount of engineering investment is saved.
The construction method of the fully-composite assembly type underground structure is used for constructing from top to bottom, and the top plate prefabricated part, the cast-in-place layer, the middle plate prefabricated part and the cast-in-place layer are used for replacing an inner support system, so that the construction objects around the foundation pit can be effectively protected, and a large amount of engineering investment is saved. Considering that certain errors need to be reserved for installation and positioning of the prefabricated parts, transverse prestress is respectively applied to the prefabricated parts of the top plate and the middle plate through the top plate prestress jack and the middle plate prestress jack to balance and offset the reserved errors, deformation of the underground wall is controlled, and safety and stability of the foundation pit and the surrounding structures are ensured. Each prefabricated plate is tensioned and locked into a whole in the longitudinal direction (in-paper direction) by adopting prestressed reinforcements or locking steel rods section by section.
Splicing and assembling all prefabricated components of the structure, wherein the assembled components are formed by connecting mortises and high-strength bolts; the prefabricated cushion layer can also adopt a cast-in-place concrete structure.
The utility model discloses a compound assembled underground structure and construction method thereof is applicable to underground one deck, two-layer and more layers, can be applicable to no post list and stride, single post is two strides, two post three strides or more stride multilayer underground structure as required by the engineering.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a mechanized conveying system of full compound assembled subway station prefabricated component which characterized in that:
a plurality of pre-buried tracks extending longitudinally along the subway station are pre-manufactured below the prefabricated top plate (9) and the prefabricated middle plate (16) and used for hoisting the electric hoist; the embedded rail under each plate is in butt joint connection with the embedded rail under the adjacent plate to form a whole, and the electric block is used for lifting the prefabricated part in a longitudinally slidable manner along the whole embedded rail;
the electric hoist of the prefabricated top plate (9) is used for hoisting and installing the prefabricated middle longitudinal beam (15) and the prefabricated middle plate (16) of the next layer, and the electric hoist of the prefabricated middle plate (16) of the previous layer is used for hoisting and installing the prefabricated middle longitudinal beam (15) and the prefabricated middle plate (16) of the next layer or the prefabricated cushion layer (23) of the bottom plate of the next layer.
2. The mechanized transportation system of prefabricated components of a fully-composite assembled subway station as claimed in claim 1, wherein:
the pre-buried track of the prefabricated top plate (9) is also used for installing a prefabricated pipeline bracket (10) after the electric hoist is removed;
the pre-buried track of the prefabricated middle plate (16) is also used for installing a prefabricated track top air duct (28) and a prefabricated pipeline bracket (10) after the electric hoist is removed.
3. The mechanized transportation system of prefabricated parts of a fully-composite assembled subway station as claimed in any one of claims 1-2, wherein:
an embedded track a (110) and an embedded track b (111) are arranged below a prefabricated top plate (9) on one side of each transverse two sides of each upright post of the subway station, an electric hoist a (118) and an electric hoist i (126) are sequentially arranged on an integral embedded track where the embedded track a (110) is located from front to back, and an electric hoist b (119) and an electric hoist j (127) are sequentially arranged on an integral embedded track where the embedded track b (111) is located from front to back;
an embedded track c (112) and an embedded track d (113) are arranged below the prefabricated top plate (9) on the other side, an electric hoist c (120) and an electric hoist k (128) are sequentially arranged on the whole embedded track where the embedded track c (112) is located from front to back, and only one electric hoist d (121) is arranged on the whole embedded track where the embedded track d (113) is located.
4. The mechanized transportation system of prefabricated components of a fully-composite assembled subway station as claimed in claim 3, wherein:
an embedded track e (114) and an embedded track f (115) are arranged below the prefabricated middle plate (16) on one side of each transverse two sides of each upright post of the subway station, only one electric hoist e (122) is arranged on the integral embedded track where the embedded track e (114) is located, and only one electric hoist f (123) is arranged on the integral embedded track where the embedded track f (115) is located;
an embedded track g (116) and an embedded track h (117) are arranged below the prefabricated middle plate (16) on the other side, only one electric hoist g (124) is arranged on the whole embedded track where the embedded track g (116) is located, and only one electric hoist h (125) is arranged on the whole embedded track where the embedded track h (117) is located.
5. The mechanized transportation system of prefabricated components of a fully-composite assembled subway station as claimed in claim 3, wherein:
a sling is connected between the electric hoist a (118) and the electric hoist b (119) and used for hoisting and installing the prefabricated middle longitudinal beam (15) of the next layer, supporting one end of the prefabricated middle longitudinal beam (15), a sling is connected between the electric hoist i (126) and the electric hoist j (127) and used for hoisting and installing the prefabricated middle longitudinal beam (15) of the next layer, and supporting the other end of the prefabricated middle longitudinal beam (15);
traction ropes are respectively arranged at the lower ends of the electric hoist c (120) and the electric hoist k (128) and are respectively connected to two ends of the supported prefabricated middle longitudinal beam (15) in a releasable mode and used for drawing the prefabricated middle longitudinal beam to a longitudinal beam mounting position of the upright post.
6. The mechanized transportation system of prefabricated components of a fully-composite assembled subway station as claimed in claim 3, wherein:
slings are respectively arranged at the lower ends of the electric hoist a (118) and the electric hoist b (119) and are used for lifting and mounting the prefabricated middle plate (16) of the next layer; one end of the prefabricated middle plate (16) is positioned in a hanging ring formed by one sling in a releasable manner, and the other end of the prefabricated middle plate (16) is positioned in a hanging ring formed by the other sling in a releasable manner;
any one of the electric block c (120) and the electric block k (128) and the electric block d (121) form a pair, and slings are respectively arranged at the lower ends of the electric blocks and used for hoisting and installing the prefabricated middle plate (16) of the next layer; one end of the prefabricated middle plate (16) is positioned in a hanging ring formed by a sling in a releasable mode, and the other end of the prefabricated middle plate (16) is positioned in a hanging ring formed by another sling in a releasable mode.
7. The mechanized transportation system of prefabricated components of a fully-composite assembled subway station as claimed in claim 4, wherein:
slings are respectively arranged at the lower ends of the electric hoist e (122) and the electric hoist f (123) and are used for hoisting and installing the next layer of prefabricated middle plate (16) or prefabricated cushion layer (23); one end of the prefabricated middle plate (16) or the prefabricated cushion layer (23) is positioned in a hanging ring formed by one sling in a releasable mode, and the other end of the prefabricated middle plate (16) or the prefabricated cushion layer (23) is positioned in a hanging ring formed by the other sling in a releasable mode;
slings are respectively arranged at the lower ends of the electric hoist g (124) and the electric hoist h (125) and are used for hoisting and installing the next layer of prefabricated middle plate (16) or prefabricated cushion layer (23); one end of the prefabricated middle plate (16) or the prefabricated cushion layer (23) is positioned in a hanging ring formed by a sling in a releasable mode, and the other end of the prefabricated middle plate (16) or the prefabricated cushion layer (23) is positioned in a hanging ring formed by another sling in a releasable mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606946.0U CN210086301U (en) | 2019-04-29 | 2019-04-29 | Full-composite assembly type subway station prefabricated part mechanized transportation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920606946.0U CN210086301U (en) | 2019-04-29 | 2019-04-29 | Full-composite assembly type subway station prefabricated part mechanized transportation system |
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| CN210086301U true CN210086301U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042867A (en) * | 2019-04-29 | 2019-07-23 | 中铁第四勘察设计院集团有限公司 | Complete combined assembled subway station prefabricated components mechanization transportation system and method |
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2019
- 2019-04-29 CN CN201920606946.0U patent/CN210086301U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042867A (en) * | 2019-04-29 | 2019-07-23 | 中铁第四勘察设计院集团有限公司 | Complete combined assembled subway station prefabricated components mechanization transportation system and method |
| CN110042867B (en) * | 2019-04-29 | 2023-11-10 | 中铁第四勘察设计院集团有限公司 | Full-composite assembled subway station prefabricated part mechanized transportation system and method |
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