CN108316307A - The construction method that shield machine station originates - Google Patents
The construction method that shield machine station originates Download PDFInfo
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- CN108316307A CN108316307A CN201810129216.6A CN201810129216A CN108316307A CN 108316307 A CN108316307 A CN 108316307A CN 201810129216 A CN201810129216 A CN 201810129216A CN 108316307 A CN108316307 A CN 108316307A
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- shield machine
- braced frame
- construction
- assembly
- foundation pit
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
A kind of construction method that shield machine station originates, to be carried out at the same time the construction at station and originating for shield machine in the foundation pit excavated, step includes：1, basal plate is constructed, braced frame and scaffold are built；2, the assembling assembly of shield machine is gone into the well；3, top plate is constructed.The construction method that shield machine station originates, it can be while the assembling assembly of shield machine goes into the well assembling one by one, the construction of top plate is carried out, so that the successively structure at component station, carries out the construction at station, the assembling of shield machine, the construction originated with station is set to be carried out at the same time, it need not mutually wait for, ensure that the progress of constructing tunnel, while the duration of station construction is greatly shortened, the influence to surface road is reduced, the convenience of trip is improved.Shield machine assembles in braced frame; braced frame can protect shield machine; when avoiding being carried out at the same time station construction; the pendant object fallen is fallen on shield machine; prevent shield machine from therefore causing to damage, the temporary support of scaffold can be played the role of by simultaneously supporting frame, construct top plate; convenient for the construction at station, ensure the speed of application at station.
Description
Technical field
The invention belongs to the realm of building construction more particularly to a kind of shield machine originating method shield machine stations of going into the well to go into the well the beginning
The construction method of hair.
Background technology
Shield machine is that a kind of rock tunnel(ling) machine using shield method is usually used in subway tunnel since its driving speed is fast
Construction.When carrying out constructing metro tunnel using shield machine, needs first to be sent to shield machine in the starting well dug out, make shield machine
Predetermined depth is reached, driving then can be just carried forward.
At present through the station pit frequently with open cut, as the starting well of shield machine, to need not individually excavate starting well,
Save construction cost.Since the length of shield machine is longer, for the ease of going into the well, shield machine is divided into multistage, after every section is sent to underground,
Assembly is carried out again, to make the assembled of shield machine need to carry out in foundation pit AT STATION.When shield machine is assembled in foundation pit AT STATION, if
It is carried out at the same time the construction at station, the falling from high altitude object that when upper layer main body structure construction generates can be to shield machine and assembly operation personnel
It damages, and shield machine occupies the space in station pit, also increases the difficulty for being carried out at the same time station construction.Therefore
Shield launching method is advanced row station construction at present, reserves shield launching well after station construction, then carry out shield
Machine is assembled and is originated；Or originated after being first completed shield machine, after leaving station pit, then start the construction at station.This
The assembling of two ways shield machine carries out after waiting for station construction or shield machine could start station and apply after the incident
Work substantially prolongs the duration of construction.Since metro station construction place is predominantly located at densely populated, heavy traffic position,
And it needs to occupy the road on ground and carries out closure construction, the extension of station construction duration is then extended to ground upper track road
Influence, so that road traffic is chronically at congestion status, increase the inconvenience of trip.
Invention content
The present invention for the above-mentioned prior art, proposes that one kind can be carried out at the same time shield launching and apply
Work and station construction, and the construction method that the shield machine station for the safety problem that crossed construction brings can be avoided to originate simultaneously.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of construction method that shield machine station originates, to be carried out at the same time in the foundation pit excavated station construction and
Shield machine originates, and steps are as follows：
1. constructing basal plate on the bottom surface of foundation pit, the build support column on basal plate builds braced frame and scaffold；
2. using the both ends of braced frame as originating terminal and assembly side, originating terminal is extended and clings to foundation pit correspondence
On the inner wall of side, the assembly that can accommodate shield machine will be reserved between the inner wall of assembly side side corresponding with scaffold or foundation pit
The construction space of component；Scaffold is built in the base for other than construction space, not building braced frame and non-build support column
On laminate；
3. by each section assembling assembly of shield machine, one by one by right over construction space, dropping into foundation pit, being placed into and apply
On basal plate in work space, and it is sent in the assembly space of braced frame setting by the opening of assembly side；Branch is utilized simultaneously
The top of dagger, braced frame and scaffold, constructs top plate, on top plate reserve be aligned with assembly space go into the well
Mouthful；
4. final section assembling assembly is placed on the basal plate in construction space, the assembly side of braced frame is extended
Into construction space, and cling to scaffold or foundation pit corresponds on the inner wall of side；By the braced frame after extension, by upper layer
Lower well head closing on plate；
5. assembling assembly is assembled into shield machine in braced frame, shield machine leaves support frame by the opening of originating terminal
Frame is tunneled by the side wall of foundation pit, leaves foundation pit.
Preferably, covering anti-drop net and/or template in the braced frame, braced frame is dropped into anti-falling stop object
Assembly space in.
Preferably, the braced frame is built in the side of basal plate, it is solid by connector in the side of braced frame
Dingan County's decking, casting concrete in the filling space formed between the side wall of template side corresponding with foundation pit, in foundation pit
The side wall at station is constructed on side wall.
Preferably, using the top plate for having constructed completion as the first top plate, fallen into the assembling assembly of shield machine
While in foundation pit, by way of the build support column on the first top plate and building scaffold, on the first top plate
The second top plate is constructed by side；
By above-mentioned same mode, another top plate is constructed above the second top plate, until the top plate constructed
The number of plies reach setting value；
The top plate constructed is reserved with the lower well head being aligned with construction space, is applied when final section assembling assembly is placed into
On basal plate in work space, and extended braced frame is covered, and whole lower well heads is closed.
Preferably, support column is constructed on corresponding top plate or the supporting beam of basal plate setting.
Preferably, the assembly side of braced frame extends in construction space, and cling to scaffold or foundation pit correspondence one
When on the inner wall of side, the length of braced frame is more than or equal to the length of shield machine.
Preferably, 2. step is replaced with：It is corresponding with foundation pit in assembly side using one end of braced frame as assembly side
The assembling assembly construction space of shield machine can be accommodated by being reserved between the inner wall of side；Scaffold build positioned at construction space with
Outside, on the basal plate for not building braced frame and non-build support column；
4. step is replaced with：When final section assembling assembly is placed on the basal plate in construction space, it will assemble
End extends to foundation pit and corresponds on the inner wall of side；By the braced frame after extension, the lower well head on top plate is closed；
5. step is replaced with：Assembling assembly is assembled into shield machine in braced frame, shield machine is opened by assembly side
Mouth leaves braced frame, is tunneled by the side wall of base, leaves foundation pit.
Preferably, 2. step is replaced with：Braced frame is divided into the first supporting section and the second support of coaxial arrangement
Section, reserves the assembling assembly construction space that can accommodate shield machine between the first supporting section and the second supporting section, by the first support
Originating terminal is extended respectively as originating terminal and assembly side and clings to foundation pit and correspond on the inner wall of side by the both ends of section, assembly
End is located in construction space.
Compared with prior art, the advantages and positive effects of the present invention are：
1, the construction method that shield machine station originates, can shield machine assembling assembly one by one go into the well assembling while,
The construction for carrying out top plate carries out the construction at station to the structure at successively component station, make the assembling of shield machine, originate and
The construction at station can be carried out at the same time, and waited for without mutual, be ensure that the progress of constructing tunnel, while station is greatly shortened and applies
The duration of work reduces the influence to surface road, improves the convenience of trip.Shield machine assembles in braced frame, support
Frame can protect shield machine, and when avoiding being carried out at the same time station construction, the pendant object fallen is fallen on shield machine, prevent shield machine because
This causes to damage, and the temporary support of scaffold can be played the role of by simultaneously supporting frame, construct top plate, convenient for applying for station
Work ensures the speed of application at station.
2, braced frame is coated using anti-drop net and template, can ensure that pendant object is avoided to fall into the shield machine in braced frame
On, the damage of shield machine is avoided, also ensures the safety of operating personnel, while simple in structure, is installed and using easy.It is located at simultaneously
The template of side can not only play a protective role, while as the mold for constructing side wall, convenient for being carried out at the same time station side wall
Construction, further improves the efficiency of station construction.
3, top plate is successively built, and all there are lower well head, is avoided the assembling assembly for hindering shield machine from going into the well, is ensured follow-up vehicle
The construction stood will not impact the operation that originates of shield machine, so that two kinds of operations is all effectively carried out, ensure that construction efficiency.
4, support column is constructed in supporting beam, improves structural strength, ensure that the fastness of station entirety.Braced frame
Length can accommodate whole shield machine assembling assemblies, when ensureing assembling assembly assembling, shield machine integrally can be received by good
Good protection.
5, shield machine can directly be originated by present position of going into the well, and shortened the required length of braced frame, reduced and take
The braced frame required time is built, when also shortening shield launching, the distance of required movement reduces task difficulty,
Improve the working efficiency of shield launching.
6, braced frame can be divided into both ends, make the assembling assembly of shield machine that need not go into the well in order, the assembly group first gone into the well
Part can be first, is sent in one section of braced frame and stores, and is then then passed through construction space and enters other end braced frame and is assembled,
Improve the convenience operated when construction.
Description of the drawings
Fig. 1 be step 1. after the completion of foundation pit structure longitudinal schematic cross-sectional view；
Fig. 2 be step 2. after the completion of foundation pit structure lateral schematic cross-sectional view；
Fig. 3 is the lateral schematic cross-sectional view of foundation pit structure when step carries out 3.；
Fig. 4 is longitudinal schematic cross-sectional view of Construction State when being carried out at the same time shield launching and station construction；
Fig. 5 is the lateral schematic cross-sectional view of Construction State when being carried out at the same time shield launching and station construction；
Fig. 6 be step 2. after the completion of foundation pit structure schematic top plan view one；
Fig. 7 be step 2. after the completion of foundation pit structure schematic top plan view two；
Fig. 8 be step 2. after the completion of foundation pit structure schematic top plan view three；
In above each figure：1, foundation pit；2, basal plate；3, support column；4, braced frame；4.1, originating terminal；4.2, assembly side；
4a, the first supporting section；4b, the second supporting section；5, scaffold；6, assembling assembly；7, construction space；8, top plate；8.1, it goes into the well
Mouthful；9, side wall.
Specific implementation mode
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case of step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiment
In.
In the description of the present invention, it should be noted that the instructions such as term "inner", "outside", "upper", "lower", "front", "rear"
Orientation or positional relationship be position relationship based on ... shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot manage
Solution is instruction or implies relative importance.
As shown in Fig. 1 to Fig. 8 the construction method that shield machine station originates, the foundation pit 1 gone out using station construction open cut, in base
It is carried out at the same time the construction at station and originating for shield machine in hole 1.
As shown in Figure 1, on the bottom surface of foundation pit 1, by way of building steel bar framework and casting concrete, reinforcing bar is constructed
The basal plate 2 of concrete structure.Basal plate 2 can cover the bottom surface of entire foundation pit 1, the foundation structure as station.
When building the steel bar framework of basal plate 2, the basis of pre-buried support column 3, the construction poured using armored concrete
Mode build support column 3, while braced frame 4 and scaffold 5 are built on basal plate 2.
As seen in figs, using the both ends of braced frame 4 as originating terminal 4.1 and assembly side 4.2.The support built
When frame 4, make its originating terminal 4.1 extend and cling to foundation pit 1 to correspond on the inner wall of side, make assembly side 4.2 and scaffold 5 or
The construction space 7 for the assembling assembly 6 that can accommodate shield machine is reserved between the inner wall of the correspondence of foundation pit 1 side.
When building scaffold 5, scaffold 5 is built other than construction space 7, while not building 4 He of braced frame again
On the basal plate 2 of non-build support column 3, make on basal plate 2, the region other than construction space 7 is fully supported frame 4 and foot
Hand cradle 5 occupies.
Shield machine is divided into more piece assembling assembly 6 since its length is longer, after assembling assembly 6 is gone into the well one by one, the group in well
After the completion of dress, it can be originated.
By each section assembling assembly 6 of shield machine, according to the sequence of assembling, one by one by 7 surface of construction space, drop into
It in foundation pit 1, is placed on the basal plate 2 in construction space 7, and is sent to what braced frame 4 was arranged by the opening of assembly side 4.2
In assembly space.It is sent into the assembling assembly 6 of braced frame 4 in order successively, contacts in assembly space assembled.
Braced frame 4 is protected the assembly group valence in assembly space, is avoided by covering anti-drop net, template
The pendant object fallen when station construction smashes assembling assembly 6.
While the assembling assembly 6 of shield machine is gone into the well one by one and is sent into braced frame 4, support column 3, support frame are utilized
Frame 4 and scaffold 5, by the form of construction work that reinforced concrete is solid, construct the top plate at station as support above basal plate 2
8。
While constructing top plate 8, installation form on the scaffold 5 of 1 inner wall of foundation pit that reclines, in template and 1 inner wall of foundation pit
Between by the form of construction work of armored concrete, the side wall 9 at station is processed on the inner wall of base.
In order to improve the efficiency of the construction of station side wall 9, braced frame 4 is built in the side of basal plate 2, in braced frame 4
Side template is fixedly mounted by connector, in the filling space formed between the side wall of template side corresponding with foundation pit 1
Casting concrete constructs the side wall 9 at station by the form of construction work that reinforced concrete is solid on the side wall of foundation pit 1.
Template directly utilizes the installation of braced frame 4 to fix, without again solely in order to corresponding scaffold is built in the construction of side wall 9
5, improve the efficiency of station construction, while will not be impacted to the assembling of shield machine and originating.
After the completion of top plate 8 and side wall 9 are constructed, the scaffold 5 on basal plate 2 is removed, support column 3 carries out top plate 8
Carrying.When constructing top plate 8, if the assembling assembly 6 of shield machine is not sent to the assembly space of braced frame 4 all,
The lower well head 8.1 being aligned with assembly space is reserved on top plate 8, so that top plate 8 is not stopped going into the well for assembling assembly 6, is avoided
The construction at station impacts the operation that originates of shield machine, after ensureing that station construction completes top plate 8, shield launching operation
It can while and smoothly carry out.
When final section assembling assembly 6 is placed on the basal plate 2 in construction space 7, the basal plate in construction space 7
Braced frame 4 is further built on 2, the assembly side 4.2 of braced frame 4 is extended in construction space 7, and cling to scaffold
5 or foundation pit 1 correspond to side inner wall on, make whole assembling assemblies 6 of shield machine, all enter in braced frame 4, in support frame
Assembling is completed in assembly space in frame 4.
After whole assembling assemblies 6 all enter in braced frame 4, braced frame 4 will completely protect shield machine.It is logical
It crosses and overlaps template on the step that 8.1 edge of lower well head is reserved, or by pacifying in the braced frame 4 for extending to construction space 7
Decking is closed the lower well head 8.1 on top plate 8 using the form of construction work of armored concrete.
After the lower well head 8.1 of top plate 8 is closed, you can based on top plate 8, above top plate 8 further into
The construction at driving station.
Assembling assembly 6 is assembled into shield machine in braced frame 4, shield machine leaves support by the opening of originating terminal 4.1
Frame 4 is tunneled by the side wall of foundation pit 1, leaves foundation pit 1, completes originating for shield machine.
In order to further speed up the speed of shield launching, another embodiment party can be used in the construction that shield machine station originates
Formula.
Specific implementation mode is as follows：
On the bottom surface of foundation pit 1, basal plate 2 is constructed.The build support column 3 on basal plate 2, while being taken on basal plate 2
Build braced frame 4 and scaffold 5.
As shown in fig. 7, using one end of braced frame 4 as assembly side 4.2.When building braced frame 4, make assembly side 4.2
6 construction space 7 of assembling assembly of shield machine can be accommodated by being reserved between the inner wall of side corresponding with foundation pit 1, and braced frame 4
The other end is then not necessarily to extend to 1 side wall of foundation pit.
When building scaffold 5, scaffold 5 is built other than construction space 7, while not building 4 He of braced frame again
On the basal plate 2 of non-build support column 3, make on basal plate 2, the region other than construction space 7 is fully supported frame 4 and foot
Hand cradle 5 occupies.
By each section assembling assembly 6 of shield machine, according to the sequence of assembling, one by one by 7 surface of construction space, drop into
It in foundation pit 1, is placed on the basal plate 2 in construction space 7, and is sent to what braced frame 4 was arranged by the opening of assembly side 4.2
In assembly space.It is sent into the assembling assembly 6 of braced frame 4 in order successively, contacts in assembly space assembled.Braced frame 4
By covering anti-drop net, template, the assembly group valence in assembly space is protected.
While the assembling assembly 6 of shield machine is gone into the well one by one and is sent into braced frame 4, support column 3, support frame are utilized
Frame 4 and scaffold 5 construct the top plate 8 at station as support above basal plate 2.
While constructing top plate 8, installation form on the scaffold 5 or braced frame 4 of 1 inner wall of foundation pit that reclines, in template
By the form of construction work of armored concrete between 1 inner wall of foundation pit, the side wall 9 at station is processed on the inner wall of base.
When constructing top plate 8, if the assembling assembly 6 of shield machine is not sent to the assembly space of braced frame 4 all,
The lower well head 8.1 being aligned with assembly space is reserved on top plate 8, and top plate 8 is made not stop going into the well for assembling assembly 6.
When final section assembling assembly 6 is placed on the basal plate 2 in construction space 7, the basal plate in construction space 7
Braced frame 4 is further built on 2, the assembly side 4.2 of braced frame 4 is extended in construction space 7, and cling to foundation pit 1
On the inner wall of corresponding side, makes whole assembling assemblies 6 of shield machine, all enter in braced frame 4, in braced frame 4
Assembling is completed in assembly space.
Assembling assembly 6 is assembled into shield machine in braced frame 4, the final section assembling assembly 6 gone into the well, to carry knife
One section of disk, cutterhead are directed at the side wall of foundation pit 1, and shield machine directly leaves braced frame 4 by the opening of assembly side 4.2, by foundation pit 1
Side wall start to tunnel, leave foundation pit 1, complete originating for shield machine.
Shield machine uses the above embodiment, is directly directly originated by lower well location, makes braced frame 4 far from assembly side
4.2 other end shortens 4 required length of braced frame, reduces and build support without extending to the side wall of foundation pit 1
The 4 required time of frame.Simultaneously when shield launching, the distance of required movement also reduces in braced frame 4, is not necessarily to
The longer guide rail of laying, guide groove reduce task difficulty to make shield machine move in braced frame 4, improve shield machine
The working efficiency originated.
In order to improve the convenience of construction, the third embodiment can be used in the construction that shield machine station originates.
Specific implementation mode is as follows：
On the bottom surface of foundation pit 1, basal plate 2 is constructed.The build support column 3 on basal plate 2, while being taken on basal plate 2
Build braced frame 4 and scaffold 5.
As shown in figure 8, dividing braced frame 4 for the first supporting section 4a and the second supporting section 4b, the first supporting section 4a and
Two supporting section 4b are coaxial, and the assembling assembly 6 of shield machine can be accommodated by, which being reserved between the first supporting section 4a and the second supporting section 4b, applies
Work space 7.
Using the both ends of the first supporting section 4a as originating terminal 4.1 and assembly side 4.2, originating terminal 4.1 is extended and pasted
It comes to foundation pit 1 to correspond on the inner wall of side, assembly side 4.2 is located in construction space 7.
When building scaffold 5, scaffold 5 is built other than construction space 7, while not building 4 He of braced frame again
On the basal plate 2 of non-build support column 3, make on basal plate 2, the region other than construction space 7 is fully supported frame 4 and foot
Hand cradle 5 occupies.
By each section assembling assembly 6 of shield machine, one by one by 7 surface of construction space, drops into foundation pit 1, be placed into
On basal plate 2 in construction space 7, and be sent to by the opening of assembly side 4.2 first supporting section 4a setting of braced frame 4
In assembly space.It is sent into the assembling assembly 6 of braced frame 4 in order successively, contacts in assembly space assembled.Braced frame 4
By covering anti-drop net, template, the assembly group valence in assembly space is protected.
If some assembling assembly 6 is not gone into the well according to assemble sequence, which is first sent into the of braced frame 4
It is kept in two supporting section 4b, when another assembling assembly 6 that should be coupled is gone into the well and after be sent into the first supporting section 4a, then will
It is removed from the second supporting section 4b, is assembled and is connected into the first supporting section 4a across construction space 7.
While the assembling assembly 6 of shield machine is gone into the well one by one and is sent into braced frame 4, support column 3, support frame are utilized
Frame 4 and scaffold 5 construct the top plate 8 at station as support above basal plate 2.
While constructing top plate 8, installation form on the scaffold 5 or braced frame 4 of 1 inner wall of foundation pit that reclines, in template
By the form of construction work of armored concrete between 1 inner wall of foundation pit, the side wall 9 at station is processed on the inner wall of base.
When constructing top plate 8, if the assembling assembly 6 of shield machine is not sent to the assembly space of braced frame 4 all,
The lower well head 8.1 being aligned with assembly space is reserved on top plate 8, and top plate 8 is made not stop going into the well for assembling assembly 6.
Whole assembling assemblies 6 are all gone into the well, when being placed on the basal plate 2 in construction space 7, the base in construction space 7
Braced frame 4 is further built on laminate 2, and the assembly side 4.2 of the first supporting section 4a is extended in construction space 7, and is reclined
Onto the second supporting section 4b, so that the first supporting section 4a is connected with the second supporting section 4b integral, make whole assembly groups of shield machine
Part 6 all enters in braced frame 4, and assembling is completed in the assembly space in braced frame 4.
Assembling assembly 6 is assembled into shield machine in braced frame 4, shield machine leaves support by the opening of originating terminal 4.1
Frame 4 is tunneled by the side wall of foundation pit 1, leaves foundation pit 1, completes originating for shield machine.
In order to accelerate the speed of application at station, as shown in Figures 4 and 5, go into the well in order one by one in the assembling assembly 6 of shield machine
While being placed on basal plate 2, on the top plate 8 adjacent with basal plate 2, the construction at station is carried out.
The top plate 8 adjacent with base is used as the first top plate 8, the first top plate 8 to construct completion, and reserved lower well head
After 8.1, build support column 3 and scaffold 5 is built on the first top plate 8, and using support column 3 and scaffold 5 as supporting,
The form of construction work that concrete is mixed by reinforcing bar constructs the second top plate 8 above the first top plate 8.
By above-mentioned same mode, another top plate 8 is constructed above the second top plate 8, top plate 8 is made successively to fold
Add, until the number of plies for the top plate 8 constructed reaches setting value, to construct the main frame structure for completing station.
If construct top plate 8, the assembling assembly 6 of shield machine is not all gone into the well and is entered in braced frame 4, then exists
The lower well head 8.1 being aligned with construction space 7 is reserved on the top plate 8 constructed also avoids lower well head so that assembling assembly 6 is gone into the well
The pendant object generated when 8.1 closing smashes assembling assembly 6.
The top plate 8 constructed is reserved with the lower well head 8.1 being aligned with construction space 7, when final section assembling assembly 6 is put
When setting on the basal plate 2 in construction space 7, whole lower well heads 8.1 is closed, space-closed residing for basal plate 2 makes
The station construction of side and the shield machine erection and launching operation of bottom are mutually isolated, and construction operation between the two is made not interfere with each other.
In order to improve the structural strength at station, support column 3 constructs the supporting beam being arranged in corresponding top plate 8 or basal plate 2
On.
In order to ensure that braced frame 4 can be effectively protected whole assembling assemblies 6 of shield machine, braced frame 4
Assembly side 4.2 extend in construction space 7, and when clinging to scaffold 5 or foundation pit 1 and corresponding on the inner wall of side, support frame
The length of frame 4 is more than or equal to the length of shield machine, so that braced frame 4 is covered shield machine comprehensively, plays a protective role.
Claims (8)
1. a kind of construction method that shield machine station originates, to be carried out at the same time construction and the shield at station in the foundation pit excavated
Structure machine originates, which is characterized in that steps are as follows：
1. constructing basal plate on the bottom surface of foundation pit, the build support column on basal plate builds braced frame and scaffold；
2. using the both ends of braced frame as originating terminal and assembly side, originating terminal is extended and clings to foundation pit corresponds to side
Inner wall on, the assembling assembly that can accommodate shield machine will be reserved between the inner wall of assembly side side corresponding with scaffold or foundation pit
Construction space；Scaffold is built in the basal plate for other than construction space, not building braced frame and non-build support column
On；
3. by each section assembling assembly of shield machine, one by one by right over construction space, dropping into foundation pit, it is empty to be placed into construction
Between in basal plate on, and by the opening of assembly side be sent to braced frame setting assembly space in；Simultaneously using support column,
Braced frame and scaffold, construct top plate, and the lower well head being aligned with assembly space is reserved on top plate；
4. final section assembling assembly is placed on the basal plate in construction space, the assembly side of braced frame is extended to and is applied
It in work space, and clings to scaffold or foundation pit corresponds on the inner wall of side, the lower well head on top plate is closed；
5. assembling assembly is assembled into shield machine in braced frame, shield machine leaves braced frame by the opening of originating terminal, by
The side wall of foundation pit starts to tunnel, and leaves foundation pit.
2. the construction method that shield machine station according to claim 1 originates, which is characterized in that the braced frame overlying
Lid anti-drop net and/or template drop into anti-falling stop object in the assembly space of braced frame.
3. the construction method that shield machine station according to claim 1 originates, which is characterized in that the braced frame is built
In the side of basal plate, template is fixedly mounted by connector in the side of braced frame, in template side corresponding with foundation pit
Casting concrete in the filling space formed between side wall, constructs the side wall at station on the side wall of foundation pit.
4. the construction method that shield machine station according to claim 1 originates, which is characterized in that completion will have been constructed
Top plate is as the first top plate, while the assembling assembly of shield machine drops into foundation pit, by the first top plate
Build support column and the mode for building scaffold, construct the second top plate above the first top plate；
By above-mentioned same mode, another top plate is constructed above the second top plate, until the layer for the top plate constructed
Number reaches setting value；
The top plate constructed is reserved with the lower well head being aligned with construction space, when final section assembling assembly is placed into construction sky
Between in basal plate on, and extended braced frame is covered, by whole lower well head closings.
5. the construction method that shield machine station according to claim 1 or 4 originates, which is characterized in that support column is constructed
On corresponding top plate or the supporting beam of basal plate setting.
6. the construction method that shield machine station according to claim 1 originates, which is characterized in that the assembly side of braced frame
It extends in construction space, and clings to scaffold or when foundation pit is corresponded on the inner wall of side, the length of braced frame is more than etc.
In the length of shield machine.
7. the construction method that shield machine station according to claim 1 originates, which is characterized in that 2. replace with step：
Using one end of braced frame as assembly side, shield machine can be accommodated by being reserved between the inner wall of assembly side side corresponding with foundation pit
Assembling assembly construction space；Scaffold, which is built, other than construction space, is not building braced frame and non-build support column
Basal plate on；
4. step is replaced with：When final section assembling assembly is placed on the basal plate in construction space, assembly side is prolonged
Foundation pit is reached to correspond on the inner wall of side；By the braced frame after extension, the lower well head on top plate is closed；
5. step is replaced with：Assembling assembly is assembled into shield machine in braced frame, shield machine by assembly side opening from
Braced frame is opened, is tunneled by the side wall of base, foundation pit is left.
8. the construction method that shield machine station according to claim 1 originates, which is characterized in that 2. replace with step：
Braced frame is divided into the first supporting section and the second supporting section of coaxial arrangement, is reserved between the first supporting section and the second supporting section
The assembling assembly construction space that shield machine can be accommodated will using the both ends of the first supporting section as originating terminal and assembly side
Originating terminal, which extends and clings to foundation pit, to be corresponded on the inner wall of side, and assembly side is located in construction space.
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| CN201810129216.6A CN108316307B (en) | 2018-02-08 | 2018-02-08 | Construction method for starting shield machine station |
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| CN201810129216.6A CN108316307B (en) | 2018-02-08 | 2018-02-08 | Construction method for starting shield machine station |
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| CN108316307B CN108316307B (en) | 2020-01-14 |
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| CN108316307B (en) | 2020-01-14 |
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