CN206128080U - A support system for subway foundation pit - Google Patents
A support system for subway foundation pit Download PDFInfo
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- CN206128080U CN206128080U CN201621046240.6U CN201621046240U CN206128080U CN 206128080 U CN206128080 U CN 206128080U CN 201621046240 U CN201621046240 U CN 201621046240U CN 206128080 U CN206128080 U CN 206128080U
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- foundation pit
- guide rail
- horizontal support
- bearing
- support platform
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Abstract
The utility model provides a support system for subway foundation pit, includes the horizontal support platform of horizontal support between foundation pit retaining structure, the horizontal support platform still includes guide rail, lift power pack and power transmission element along the length and the parallel interval evenly distributed of direction of height of foundation ditch, the guide rail sets up along foundation pit retaining structure's length direction parallel interval, lift power pack connects between horizontal support platform and guide rail, power transmission element connects between horizontal support platform and guide rail. Apply the precompression through jack pair horizontal support platform before the foundation ditch excavation, the deformation of envelope horizontal direction among the control foundation ditch excavation process, power transmission element drives horizontal support platform along the vertical removal of foundation pit retaining structure under the condition of bearing horizontal support power, conveniently carry out the quick vertical removal of multilayer horizontal support platform, lift power pack cooperation guide rail carries out the whole lift of horizontal support platform, and is more high -efficient than the interior support that the installation is conventional, and factor of safety is better in addition, the structure is more stable.
Description
Technical field
This utility model is related to building engineering field, particularly a kind of foundation ditch support system.
Background technology
At present, for the main support system that subway foundation pit is adopted is mainly armored concrete and steel pipe to supportting, particularly
Steel pipe support therein, its horizontally disposed spacing is often less than 3m.Based on subway station is long and narrow, flat shape of rectangle is special
Point, the method that subway foundation pit earth excavation typically moves back digging relay using step is carried out.Due to the spacing mistake that horizontal support is arranged
In tight, operation side is little, and earth excavation machinery often adopts the less excavating equipment of dipper capacity, by way of step relay
Earth excavation is completed, earth excavation work efficiency is greatly reduced；On the other hand, when steel pipe support is lifted by root, because compared with
Close horizontal support spacing, it is necessary to avoid the mutual collision supported when lifting, still needs after lifting is in place and is supported end welding
Fixed and support pre-stress construction, supports installation difficulty, efficiency of construction underground.
It is well known that the principle that pit earthwork excavation must comply with " first support and dig afterwards " is carried out, found by investigating, even if adopting
Earth excavation is carried out with the less digging machine of the relatively low dipper capacity of work efficiency, the installation efficiency of support far can not also meet earth excavation will
Ask, earth excavation and support install no matter both temporally and spatially cannot realize mutually satisfaction, cause horizontal support
Installation often lags behind earth excavation, is that base pit engineering buries huge potential safety hazard.
To sum up, for the subway foundation pit engineering of current sleeve configuration rule, opened using existing horizontal struts system and the earthwork
Excavation method, causes certain difficulty on duration and safety to engineering construction.
Utility model content
The purpose of this utility model is to provide a kind of support system for subway foundation pit, to solve existing efficiency of construction
Low, potential safety hazard is big, the technical problem that working space is limited.
For achieving the above object, this utility model is adopted the following technical scheme that：
A kind of support system for subway foundation pit is flat including the horizontal support being horizontally supported between foundation pit enclosure structure
Platform, the horizontal support platform is uniformly distributed along the length and short transverse parallel interval of foundation ditch, also dynamic including guide rail, lifting
Power unit and force transmission mechanism；The guide rail is arranged along the length direction parallel interval of foundation pit enclosure structure；The lifting drive list
Unit is connected between horizontal support platform and guide rail；The force transmission mechanism is connected between horizontal support platform and guide rail.
The rail unit is connected by adjustable seats component with foundation pit enclosure structure, by unit rack and lifting drive
Unit connects.
The guide rail is that the short transverse by rail unit along foundation pit enclosure structure is vertically spliced.
The rail unit is rectangle column casing, and adjacent rail unit is by connecting pin connection；One end of rail unit sets
There are the guide rail connecting hole through connecting pin, the other end to be correspondingly provided with the connection otic placode of connection connecting pin；The stack shell back of the body of rail unit
Face is provided with the guide rail bearing connecting hole of connection adjustable seats component, and side is provided with along its length one group of connection unit support
Counter-force hole.
The adjustable seats component include the guide rail bearing being connected with guide rail and guide rail bearing connection foundation ditch bearing and
Anchor slab between connection foundation ditch bearing and foundation pit enclosure structure；The guide rail bearing is made up of backboard, base plate and biside plate
Box like structure, is uniformly provided with X and is connected with guide rail to adjustment hole and by securing member on its dorsulum, Y-direction regulation is provided with base plate
Hole is simultaneously connected by securing member with foundation ditch bearing；The box like structure that the foundation ditch bearing is made up of backboard, base plate and biside plate,
Wherein base plate be connected with the base plate of guide rail bearing by securing member, on be provided with through hole through securing member, Z is uniformly provided with backboard
It is connected with anchor slab to adjustment hole and by anchor；The thread head of one end of the anchor, sequentially pass through anchor slab and Z-direction adjustment hole
And fixed by nut, the other end is hook heads, is anchored on the framework of steel reinforcement of foundation pit enclosure structure.
The unit rack includes being connected to the A-frame of horizontal support platform end, is connected to A-frame end
Upper latch bearing and the lower latch bearing being set in parallel in below latch bearing；The upper latch bearing and lower latch bearing
It is detachably connected with the counter-force hole of guide rail by upper latch and lower latch respectively.
The lifting drive unit is hydraulic jack, including cylinder barrel and piston rod, wherein cylinder barrel is fixed with upper latch bearing
Connection, one end of piston rod is flexibly connected through upper latch bearing with cylinder barrel, the other end is fixedly connected with lower latch bearing.
The horizontal support platform include upper plane girder support, lower plane truss support and be vertically connected to both it
Between connecting rod；The upper plane girder support include two along foundation ditch width arrange to supportting steel truss, being connected to supportting
Fringe truss between steel truss two ends is supportted with the Chinese lute being connected to supportting on the two sides of steel truss two ends；The lower plane truss
Support is identical with upper plane girder supporting construction and parallel interval is arranged.
The force transmission mechanism includes being connected to the jack of horizontal support platform end, being connected to the rotation of jack front end
Joint, the rolling wheel support being hinged on cradle head and the roller being hinged on rolling wheel support；The rolling wheel support is triangle
Plate or bending strip board at an acute angle, its drift angle is with cradle head is hinged, two base angles are symmetrically hinged with a roller.
Compared with prior art this utility model has the characteristics that and beneficial effect：
By the way that the rectangle rule subway foundation pit of sleeve configuration is divided into into some units, each unit arranges water to this utility model
Flat support platform, is effectively combined and is designed using steel construction to the arrangement form to supportting steel truss and fringe truss, is increased
In the plane of whole support system and out-of-plane integral rigidity so that the stable and safety of support system more can be protected
Barrier, realizes the design of large span, to ensure that there is larger mechanical work space its central area；Cancel traditional subway foundation pit to adopt
Reinforced concrete is supported or interim stand column pile necessary to steel pipe support, is rationally effectively evaded support interval and is arranged closeer shortcoming, with
The size of subway foundation pit both direction is respectively 18m, as a example by 23m, in the range of support system, defines the net of about 13m × 16m
Empty scope, using the digging environment of accessible big headroom in hole, changing can only adopt under current traditional close supporting condition
Mini-excavator and the low awkward situation of caused work efficiency, you can facilitate heavy-duty machines to put into, accelerate earth excavation work efficiency, effectively contracting
Casual labourer's journey completion time of project；Horizontal support platform can carry out assembled design, be easy to disassemble and install, and reuse capable of circulation,
Beneficial to low-carbon environment-friendly.
Horizontal steel is set on foundation pit enclosure structure and encloses purlin and longitudinal steel guide rail, arrange some at unit truss two ends
To transmit active earth pressure to horizontal support platform, soil pressure Path of Force Transfer is jack：The soil body → foundation pit enclosure structure →
Steel encloses purlin → guide rail → jack → horizontal support platform；At horizontal support platform two ends, lifting drive unit, a side are set
Face is transferred to the deadweight of horizontal support platform on longitudinal rail, on the other hand carries out level using lifting drive unit matching guide rail
The integral elevating of support platform, it is more more efficient than installing more conventional concrete or steel pipe inner supporting, and safety coefficient more preferably, knot
Structure is more stable, it is to avoid traditional subway foundation pit first supports deep pit monitor hidden danger caused by the principle dug afterwards because barbarous construction can not be followed,
While the installation efficiency of support system is accelerated so that support system is constructed and is fitted close with earth excavation, it is to avoid passed at present
Single bracing members of uniting are installed and often lag behind earth excavation and possible caused potential safety hazard.
Precompression can be applied by jack pair horizontal support platform before excavation of foundation pit, and then be controlled in Excavation Process
The deformation of building enclosure horizontal direction, and the support force that roller reaches on jack puts on foundation pit enclosure in the form of line load
Structure, drives horizontal support platform to move along foundation depth direction, it is ensured that sub-truss in the case where horizontal supporting force is born
Remain to play a part of support during movement, therefore, force transmission mechanism can drive in the case where horizontal supporting force is born
Horizontal support platform is vertically movable along foundation pit enclosure structure, conveniently carries out the quick vertically movable of multiple-layer horizontal support platform, really
Each layer is adjusted in guarantor's assembling process, and efficiency of construction is high, and is that subway foundation pit construction field proposes a kind of new propping up safely and effectively
Support body system and construction method, are low-carbon (LC), green, quick, safety construction technology.
Description of the drawings
Below in conjunction with the accompanying drawings the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is overlooking the structure diagram of the present utility model.
Fig. 3 is main structure diagram of the present utility model.
Fig. 4 is the structural representation of this utility model horizontal support platform.
Fig. 5 is this utility model horizontal support platform, lifting drive unit, guide rail, the attachment structure of adjustable seats component
Schematic diagram.
Fig. 6 is the structural representation of this utility model adjustable seats component.
Fig. 7 is the structural representation of this utility model adjustable seats component.
Fig. 8 is the structural representation of this utility model force transmission mechanism.
Reference：1- horizontal support platforms, 1.1- are to supportting steel truss, 1.2- fringe trusses, the support of 1.3- Chinese lute, 2-
Lifting drive unit, 3- guide rails, 3.1- rail units, 3.2- counter-forces hole, 3.3- connecting pins, 3.4- guide rail connecting holes, 3.5- connect
Ear connecting plate, 4- adjustable seats components, 4.1- guide rail bearings, 4.2-X to adjustment hole, 4.3-Y to adjustment hole, 4.4- foundation ditch bearings,
4.5- Z-direction adjustment holes, 4.6- anchor slabs, 4.7- anchors, 4.8- securing members, 5- foundation pit enclosure structures, 5.1- frameworks of steel reinforcement, 6-
Latch, 7- under latch bearing, 6.5- under the upper latch bearing of unit rack, 6.1- A-frames, 6.2-, the upper latches of 6.3-, 6.4-
Enclose purlin, 8- force transmission mechanisms, 8.1- rollers, 8.2- jack, 8.3- cradle heads, 8.4- rolling wheel supports.
Specific embodiment
Embodiment referring to shown in Fig. 1, Fig. 2, Fig. 3, this support system for subway foundation pit, including being horizontally supported at base
Horizontal support platform between pit enclosure structure 5, length with short transverse parallel of the horizontal support platform 1 along foundation ditch
Every being uniformly distributed, it is characterised in that：Also include guide rail 3, lifting drive unit 2 and force transmission mechanism 8；The guide rail 3 encloses along foundation ditch
The length direction parallel interval of protection structure 5 is arranged；The lifting drive unit 2 be connected to horizontal support platform 1 and guide rail 3 it
Between；The force transmission mechanism 8 is connected between horizontal support platform 1 and guide rail 3；The rail unit 3.1 passes through adjustable seats group
Part 4 is connected with foundation pit enclosure structure 5, is connected with lifting drive unit 2 by unit rack 6.
Shown in Figure 5, the guide rail 3 is that the short transverse by rail unit 3.1 along foundation pit enclosure structure 5 is vertically spliced
；The rail unit 3.1 is rectangle column casing, and adjacent rail unit 3.1 is connected by connecting pin 3.3；Rail unit
3.1 one end is provided with and the connection for being connected connecting pin 3.3 is correspondingly provided with the guide rail connecting hole 3.4, other end through connecting pin 3.3
Otic placode 3.5；The stack shell back side of rail unit 3.1 is provided with the guide rail bearing connecting hole of connection adjustable seats component 4, and side is grown along it
Degree direction is provided with the counter-force hole 3.2 of one group of connection unit support 6.
Referring to shown in Fig. 6, Fig. 7, the adjustable seats component 4 includes the guide rail bearing 4.1 being connected with guide rail 3 and guide rail
The foundation ditch bearing 4.4 and the anchor slab 4.6 between connection foundation ditch bearing 4.4 and foundation pit enclosure structure 5 of the connection of bearing 4.1；It is described
The box like structure that guide rail bearing 4.1 is made up of backboard, base plate and biside plate, is uniformly provided with X to adjustment hole on its dorsulum
4.2 and it is connected with guide rail 3 by securing member, Y-direction adjustment hole 4.3 is provided with base plate and is connected with foundation ditch bearing 4.4 by securing member
Connect；The box like structure that the foundation ditch bearing 4.4 is made up of backboard, base plate and biside plate, wherein base plate pass through securing member and lead
The base plate connection of rail bearing, on be provided with through hole through securing member, Z-direction adjustment hole 4.5 is uniformly provided with backboard and by anchor
4.7 are connected with anchor slab 4.6；The thread head of one end of the anchor 4.7, sequentially pass through anchor slab 4.6 and Z-direction adjustment hole 4.5 and lead to
Cross nut to fix, the other end is hook heads, is anchored on the framework of steel reinforcement 5.1 of foundation pit enclosure structure 5.
Referring to shown in Fig. 4, Fig. 5, the unit rack 6 includes being connected to the A-frame of the end of horizontal support platform 1
6.1st, it is connected to the upper latch bearing 6.2 of the end of A-frame 6.1 and is set in parallel in the lower of the lower section of latch bearing 6.2 and inserts
Pin bearing 6.4；The upper latch bearing 6.2 and lower latch bearing 6.4 are respectively by upper latch 6.3 and lower latch 6.5 and guide rail 3
Counter-force hole 3.2 be detachably connected.
Referring to shown in Fig. 4, Fig. 5, the lifting drive unit 2 is hydraulic jack, including cylinder barrel and piston rod, wherein cylinder barrel
Be fixedly connected with upper latch bearing 6.2, one end of piston rod is flexibly connected through upper latch bearing 6.2 with cylinder barrel, the other end with
Lower latch bearing 6.4 is fixedly connected.
Shown in Figure 4, the horizontal support platform 1 includes the support of upper plane girder, lower plane truss support and erects
The direct-connected connecting rod being connected between the two；The upper plane girder support include two along foundation ditch width arrange to support steel truss
Frame 1.1, it is connected to the fringe truss 1.2 to supportting between steel truss 1.1 two ends and is connected to supportting on the two ends two sides of steel truss 1.1
Chinese lute support 1.3；The lower plane truss support is identical with upper plane girder supporting construction and parallel interval is arranged.
Shown in Figure 8, the force transmission mechanism 8 includes being connected to jack 8.2, the connection of the end of horizontal support platform 1
Cradle head 8.3 in jack front end, the rolling wheel support 8.4 being hinged on cradle head 8.3 and it is hinged on rolling wheel support 8.4
On roller 8.1；The rolling wheel support 8.4 is triangular plate or bends strip board at an acute angle, and its drift angle is closed with rotating
Section 8.3 is hinged, two base angles are symmetrically hinged with a roller 8.1.
A kind of construction method of the support system for being used for subway foundation pit as mentioned, it is characterised in that comprise the following steps that：
Step one, completes the construction of foundation pit enclosure structure 5, carries out ground floor earth excavation.
Step 2, after being excavated to supported design absolute altitude, installs rail unit and corresponding adjustable seats component 4.
Step 3, connection ground floor horizontal support platform and corresponding lifting drive unit 2, unit rack 6 and power transmission
Mechanism 8.
Step 4, integral hoisting to ground floor horizontal support designed elevation position, the jack pushing tow of force transmission mechanism 8 are received
Power.
Step 5, after pushing tow stability under loading, excavation of foundation pit depth continues to increase, and continues to install downwards rail unit and right
The adjustable seats component 4 answered, using connection pin connection wherein between rail unit and rail unit.
Step 6, excavates to after second layer supported design absolute altitude, increases second layer horizontal support platform and corresponding liter newly
Drop power unit 2, unit rack 6 and force transmission mechanism 8.
Step 7, integral hoisting second layer horizontal support platform, is allowed to close to ground floor horizontal support platform.
Step 8, the jack pushing tow stress of second layer horizontal support platform force transmission mechanism 8.
Step 9, after stability under loading, shrinks the jack of ground floor horizontal support platform force transmission mechanism 8.
Step 10, after the second layer horizontal support platform support replacement that ground floor horizontal support platform is increased newly by top, utilizes
Lifting drive unit carries out the substep batch (-type) segmentation of ground floor horizontal support platform 1 and declines.
Step 11, ground floor horizontal support platform is dropped to after second layer supported design absolute altitude, ground floor horizontal support
The jack pushing tow stress of platform force transmission mechanism 8
Step 12, by the second layer horizontal support platform loads small distance ground floor supported design absolute altitude is dropped to, and second
The jack pushing tow stress of layer horizontal support platform force transmission mechanism 8.
Step 13, after pushing tow stability under loading, carries out third layer earth excavation, is excavated to third layer supported design bottom mark
It is high.
Step 14, repeat step two to step 12 is until ground floor horizontal support platform 1 reaches bottom support and sets
After meter absolute altitude, start bottom structure construction.
The assembling construction of horizontal support platform, comprises the following steps that.
Step one, to supportting mobile jib, to supportting web member assembling to supportting steel truss.
Step 2, truss mobile jib, fringe truss web member assembling fringe truss.
Step 3, Chinese lute support mobile jib, Chinese lute support web member assembling Chinese lute support.
Step 4, to supportting steel truss, fringe truss and Chinese lute support assembly connection successively, is assembled into horizontal support platform.
The substep batch (-type) segmentation of horizontal support platform 1 declines, and comprises the following steps that：
Step one, the piston rod of all hydraulic oil cylinder is reclaimed up to lower latch and is not subject to after vertical force, and lower latch 6.5 is moved back
Go out counter-force hole.
Step 2, all of piston rod stretches out until the corresponding counter-force hole of lower latch bearing 6.4 correspondence, lower latch is inserted
In corresponding counter-force hole.
Step 3, by all of lower latch insertion counter-force hole after, all of piston rod synchronously extends, all of lower latch with
Counter-force bottom hole portion contacts and stress, until all of upper latch is not subject to after vertical force, all of upper latch is exited into counter-force
Hole.
Step 4, all of piston rod is synchronously reclaimed, and ground floor horizontal support platform 1 declines one section of height, until all
Upper latch bearing 6.2 just to specified counter-force hole, upper latch is inserted in corresponding counter-force hole.
Step 5, behind all of upper latch insertion counter-force hole, all of piston rod is synchronously reclaimed, all of upper latch with it is anti-
The contact of power bottom hole portion and stress, until when all of lower latch is not subject to vertical force, piston rod stops, and so far completes under single step
Drop.
Step 6, repeat step 1 is to step 5, until ground floor horizontal support platform 1 drops to designed elevation position.
Step 7, adjusts all of piston rod extension elongation and pressure so that all of upper latch, lower latch are divided equally vertical
Load, then all of hydraulic jack of choke-out, makes horizontal support platform 1 be positioned at specified altitude assignment.
Fabric is reached after intensity requirement, starts to remove support system, is comprised the following steps that：
Step one, bottom horizontal support platform 1 proceeds by substep batch (-type) stepped climb, comprises the following steps that：
Step 1, the piston rod elongation of all hydraulic oil cylinder is not subject to after vertical force up to upper latch, and upper latch is exited instead
Power hole；
Step 2, all of piston rod stretches out until the corresponding counter-force hole of upper latch bearing correspondence, corresponding by the insertion of upper latch
Counter-force hole in；
Step 3, by all of upper latch insertion counter-force hole after, all of piston rod is synchronously reclaimed, all of upper latch with
Counter-force bottom hole portion contacts and stress, until all of lower latch is not subject to after vertical force, all of lower latch is exited into counter-force
Hole；
Step 4, all of piston rod is synchronously reclaimed, and ground floor horizontal support platform 1 climbs one section of height, until under all
Latch bearing just to specified counter-force hole, lower latch is inserted in corresponding counter-force hole；
Step 5, behind all of lower latch insertion counter-force hole, all of piston rod synchronously extends, all of lower latch with it is anti-
The contact of power bottom hole portion and stress, until when all of upper latch is not subject to vertical force, piston rod stops, and so far completes under single step
Drop；
Step 6, repeat step 1 to step 5, bottom horizontal support platform 1 rises to designed elevation position；
Step 2, bottom horizontal support platform 1 is reached after last layer supported design absolute altitude, is adjusted all of piston rod and is stretched out
Length and pressure so that all of upper latch, lower latch divide equally vertical load, and then all of hydraulic jack of choke-out, makes level
Support platform 1 is positioned at specified altitude assignment；
Step 3, removes the rail unit of the bottom, and carries out dismounting turnover to corresponding adjustable seats component；
Step 4, to step 2, the last layer horizontal support platform that climbs is to last layer supported design mark again for repeat step one
Height, by that analogy, as structure is constructed upwards, until bottom horizontal support platform 1 rises to top layer supported design absolute altitude, then
Carry out lifting dismounting.
Claims (10)
1. a kind of support system for subway foundation pit, including being horizontally supported at foundation pit enclosure structure（5）Between horizontal support
Platform, the horizontal support platform（1）Length and short transverse parallel interval along foundation ditch is uniformly distributed, it is characterised in that：
Also include guide rail（3）, lifting drive unit（2）And force transmission mechanism（8）；
The guide rail（3）Along foundation pit enclosure structure（5）Length direction parallel interval arrange；
The lifting drive unit（2）It is connected to horizontal support platform（1）With guide rail（3）Between；
The force transmission mechanism（8）It is connected to horizontal support platform（1）With guide rail（3）Between.
2. the support system for subway foundation pit according to claim 1, it is characterised in that：The rail unit（3.1）
By adjustable seats component（4）With foundation pit enclosure structure（5）Connection, by unit rack（6）With lifting drive unit（2）Even
Connect.
3. the support system for subway foundation pit according to claim 1 and 2, it is characterised in that：The guide rail（3）Be by
Rail unit（3.1）Along foundation pit enclosure structure（5）Short transverse be vertically spliced.
4. the support system for subway foundation pit according to claim 3, it is characterised in that：The rail unit（3.1）
For rectangle column casing, adjacent rail unit（3.1）By connecting pin（3.3）Connection；
Rail unit（3.1）One end be provided through connecting pin（3.3）Guide rail connecting hole（3.4）, the other end be correspondingly provided with company
Pin in succession（3.3）Connection otic placode（3.5）；
Rail unit（3.1）The stack shell back side be provided with connection adjustable seats component（4）Guide rail bearing connecting hole, side along its grow
Degree direction is provided with one group of connection unit support（6）Counter-force hole（3.2）.
5. the support system for subway foundation pit according to claim 2, it is characterised in that：The adjustable seats component
（4）Including with guide rail（3）The guide rail bearing of connection（4.1）With guide rail bearing（4.1）The foundation ditch bearing of connection（4.4）And even
Connect foundation ditch bearing（4.4）With foundation pit enclosure structure（5）Between anchor slab（4.6）；
The guide rail bearing（4.1）The box like structure being made up of backboard, base plate and biside plate, is uniformly provided with X on its dorsulum
To adjustment hole（4.2）And by securing member and guide rail（3）Connection, is provided with Y-direction adjustment hole on base plate（4.3）And by securing member
With foundation ditch bearing（4.4）Connection；
The foundation ditch bearing（4.4）The box like structure being made up of backboard, base plate and biside plate, wherein base plate by securing member with
The base plate connection of guide rail bearing, on be provided with through hole through securing member, Z-direction adjustment hole is uniformly provided with backboard（4.5）And pass through
Anchor（4.7）With anchor slab（4.6）Connection.
6. the support system for subway foundation pit according to claim 5, it is characterised in that：The anchor（4.7）One
The thread head at end, sequentially pass through anchor slab（4.6）With Z-direction adjustment hole（4.5）And fixed by nut, the other end is hook heads, anchor
Gu in foundation pit enclosure structure（5）Framework of steel reinforcement on.
7. the support system for subway foundation pit according to claim 2, it is characterised in that：The unit rack（6）Bag
Include and be connected to horizontal support platform（1）The A-frame of end（6.1）, be connected to A-frame（6.1）The upper latch of end
Seat（6.2）And it is set in parallel in latch bearing（6.2）The lower latch bearing of lower section（6.4）；
The upper latch bearing（6.2）With lower latch bearing（6.4）Respectively by upper latch（6.3）With lower latch（6.5）With lead
Rail（3）Counter-force hole（3.2）It is detachably connected.
8. the support system for subway foundation pit according to claim 7, it is characterised in that：The lifting drive unit
（2）For hydraulic jack, including cylinder barrel and piston rod, wherein cylinder barrel and upper latch bearing（6.2）It is fixedly connected, one end of piston rod
Through upper latch bearing（6.2）Be flexibly connected with cylinder barrel, the other end and lower latch bearing（6.4）It is fixedly connected.
9. the support system for subway foundation pit according to claim 1, it is characterised in that：The horizontal support platform
（1）Including the support of upper plane girder, lower plane truss support and vertical connection connecting rod therebetween；
The upper plane girder support include two along foundation ditch width arrange to support steel truss（1.1）, be connected to support
Steel truss（1.1）Fringe truss between two ends（1.2）Be connected to support steel truss（1.1）Chinese lute support on the two sides of two ends
（1.3）；
The lower plane truss support is identical with upper plane girder supporting construction and parallel interval is arranged.
10. the support system for subway foundation pit according to claim 1, it is characterised in that：The force transmission mechanism（8）Bag
Include and be connected to horizontal support platform（1）The jack of end（8.2）, be connected to the cradle head of jack front end（8.3）, be hinged
In cradle head（8.3）On rolling wheel support（8.4）Be hinged on rolling wheel support（8.4）On roller（8.1）；
The rolling wheel support（8.4）For triangular plate or bending strip board at an acute angle, its drift angle and cradle head（8.3）
It is hinged, two base angles are symmetrically hinged with a roller（8.1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621046240.6U CN206128080U (en) | 2016-09-09 | 2016-09-09 | A support system for subway foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621046240.6U CN206128080U (en) | 2016-09-09 | 2016-09-09 | A support system for subway foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206128080U true CN206128080U (en) | 2017-04-26 |
Family
ID=58568923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621046240.6U Expired - Fee Related CN206128080U (en) | 2016-09-09 | 2016-09-09 | A support system for subway foundation pit |
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| Country | Link |
|---|---|
| CN (1) | CN206128080U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193054A (en) * | 2016-09-09 | 2016-12-07 | 中建三局集团有限公司 | A kind of support system for subway foundation pit and construction method thereof |
| CN107503358A (en) * | 2017-09-15 | 2017-12-22 | 浙江大学 | Modularization foundation ditch steel truss support structure |
| CN109868828A (en) * | 2019-01-18 | 2019-06-11 | 上海应用技术大学 | A kind of adaptive bracing members of movable type |
| CN114775634A (en) * | 2022-04-18 | 2022-07-22 | 中交四公局第二工程有限公司 | Building construction deep basal pit struts uses supplementary construction equipment |
-
2016
- 2016-09-09 CN CN201621046240.6U patent/CN206128080U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193054A (en) * | 2016-09-09 | 2016-12-07 | 中建三局集团有限公司 | A kind of support system for subway foundation pit and construction method thereof |
| CN106193054B (en) * | 2016-09-09 | 2018-01-16 | 中建三局集团有限公司 | A kind of support system and its construction method for subway foundation pit |
| CN107503358A (en) * | 2017-09-15 | 2017-12-22 | 浙江大学 | Modularization foundation ditch steel truss support structure |
| CN109868828A (en) * | 2019-01-18 | 2019-06-11 | 上海应用技术大学 | A kind of adaptive bracing members of movable type |
| CN114775634A (en) * | 2022-04-18 | 2022-07-22 | 中交四公局第二工程有限公司 | Building construction deep basal pit struts uses supplementary construction equipment |
| CN114775634B (en) * | 2022-04-18 | 2024-05-28 | 中交四公局第二工程有限公司 | Auxiliary construction equipment for deep foundation pit support of building construction |
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