CN206128079U - Subway foundation pit assembled horizontal support system - Google Patents
Subway foundation pit assembled horizontal support system Download PDFInfo
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- CN206128079U CN206128079U CN201621046239.3U CN201621046239U CN206128079U CN 206128079 U CN206128079 U CN 206128079U CN 201621046239 U CN201621046239 U CN 201621046239U CN 206128079 U CN206128079 U CN 206128079U
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- foundation pit
- horizontal support
- support platform
- guide rail
- subway
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Abstract
The utility model provides a subway foundation pit assembled horizontal support system, this system of includes the horizontal support platform of horizontal support between foundation pit retaining structure, the horizontal support platform is along the length of foundation ditch and the parallel interval evenly distributed of direction of height, be connected with power transmission element between horizontal support platform and the foundation pit retaining structure, power transmission element is along the even interval distribution in the side of horizontal support platform. The utility model discloses utilizing power transmission element to realize the effective assembled between horizontal support platform and the foundation pit retaining structure and connecting, this power transmission element sets up between horizontal support platform and foundation pit retaining structure, and consequently, power transmission element can drive 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, ensures among the horizontal support 1 each layer regulation, and the efficiency of construction is high, and is safe effective moreover.
Description
Technical field
This utility model is related to building engineering field, particularly a kind of subway foundation pit construction 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 subway foundation pit assembled horizontal struts system, to solve foundation pit construction effect
Rate is low, the technical problem that safety cannot ensure；And solve the problems, such as that foundation ditch supports assembly process complicated.
For achieving the above object, this utility model is adopted the following technical scheme that：
A kind of subway foundation pit assembled horizontal struts system, including the level being horizontally supported between foundation pit enclosure structure
Support platform, the horizontal support platform is uniformly distributed along the length and short transverse parallel interval of foundation ditch, the horizontal support
Be connected with force transmission mechanism between platform and foundation pit enclosure structure, the force transmission mechanism along horizontal support platform side it is uniform between
Every distribution.
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 triangular plate or bends strip board at an acute angle, its drift angle and cradle head be hinged,
Two base angles are symmetrically hinged with a roller.
The end of the jack is connected by connecting plate with horizontal support platform.
The subway foundation pit assembled horizontal struts system also includes guide rail and lifting drive unit.
The guide rail is arranged along the length direction parallel interval of foundation pit enclosure structure；The guide rail is along base by rail unit
What the short transverse of pit enclosure structure was vertically spliced.
The lifting drive unit is connected by unit rack with horizontal support platform.
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 are detachable with the counter-force hole of guide rail by upper latch and lower latch respectively
Connection.
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 force transmission mechanism is connected between horizontal support platform and guide rail, and its roller is connected with slide.
One group is provided between the guide rail and foundation pit enclosure structure along foundation ditch short transverse parallel interval enclose purlin, it is described to enclose purlin
Along the elongated setting of length direction of foundation pit enclosure structure.
Compared with prior art this utility model has the characteristics that and beneficial effect：
This utility model realizes the effective assembling between horizontal support platform and foundation pit enclosure structure using force transmission mechanism
Formula connects, and the force transmission mechanism is arranged between horizontal support platform and foundation pit enclosure structure, including jack, cradle head and rolling
Wheel, precompression is applied by jack to foundation pit enclosure structure, and provides support force for roller；Jack and rolling wheel support pass through
Cradle head connects, and rolling wheel support can carry out the rotation adjustment of small range with the plane of foundation pit enclosure structure, and adapt to base
The rotation of pit enclosure structure and horizontal support platform, to guarantee that force transmission mechanism can freely walk along foundation pit enclosure structure；Rolling
The size of wheel can be calculated according to the support force size of jack transmission and determined, can be arranged one or more rollers and be led to according to calculating
Cross cradle head connection integral.
Precompression can be applied by jack pair foundation pit enclosure structure 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
Protect each layer in assembling process to adjust, efficiency of construction is high, and safely and effectively.
Description of the drawings
Below in conjunction with the accompanying drawings the utility model is described in more detail.
Fig. 1 is the structural representation of this utility model embodiment one.
Fig. 2 is the main structure diagram of this utility model embodiment one.
Fig. 3 is the structural representation of the force transmission mechanism of this utility model embodiment one.
Fig. 4 is the structural representation of this utility model embodiment two.
Fig. 5 is the overlooking the structure diagram of this utility model embodiment two.
Fig. 6 is the main structure diagram of this utility model embodiment two.
Fig. 7 is the structural representation of the horizontal support platform of this utility model embodiment two.
Reference：1- horizontal support platforms, 2- lifting drive units, 3- guide rails, 4- adjustable seats components, 5-
Foundation pit enclosure structure, 6- unit racks, 7- enclose purlin, 8- force transmission mechanisms, 9- rollers, 10- jack, 11- cradle heads,
12- rolling wheel supports, 13- Guan Liangs.
Specific embodiment
Embodiment one referring to shown in Fig. 1, Fig. 2, Fig. 3, this subway foundation pit assembled horizontal struts system, including level
Horizontal support platform 1 of the support between foundation pit enclosure structure 5, length and height side of the horizontal support platform 1 along foundation ditch
It is uniformly distributed to parallel interval, it is characterised in that：Power transmission is connected between the horizontal support platform 1 and foundation pit enclosure structure 5
Mechanism 8, side uniform intervals distribution of the force transmission mechanism 8 along horizontal support platform.
Shown in Figure 3, the force transmission mechanism 8 includes being connected to the jack 10 of the end of horizontal support platform 1, is connected to
The cradle head 11 of jack front end, the rolling wheel support 12 being hinged on cradle head 11 and the rolling being hinged on rolling wheel support 12
Wheel 9.
The rolling wheel support 12 is triangular plate or bends strip board at an acute angle, and its drift angle cuts with scissors with cradle head 11
Connect, two base angles are symmetrically hinged with a roller 9.
The end of the jack 10 is connected by connecting plate with horizontal support platform 1.
Embodiment two referring to shown in Fig. 4, Fig. 5, Fig. 6, Fig. 7, and unlike embodiment one, the subway foundation pit assembled
Horizontal struts system also includes guide rail 3 and lifting drive unit 2；The guide rail 3 is parallel along the length direction of foundation pit enclosure structure 5
Interval setting；The guide rail 3 is that the short transverse by rail unit along foundation pit enclosure structure 5 is vertically spliced；It is described to lead
Rail 3 is connected by adjustable seats component 4 with foundation pit enclosure structure 5；The lifting drive unit 2 is by unit rack 6 and level
Support platform 1 connects.
Shown in Figure 7, the unit rack 6 includes being connected to the A-frame of the end of horizontal support platform 1, is connected to
The upper latch bearing of A-frame end and the lower latch bearing being set in parallel in below latch bearing；The upper latch
Seat and lower latch bearing are detachably connected respectively by upper latch and lower latch with the counter-force hole of guide rail.
The lifting drive unit 2 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 force transmission mechanism 8 is connected between horizontal support platform and guide rail, and its roller 9 is slidably connected with guide rail 3.
One group is provided between the guide rail 3 and foundation pit enclosure structure 5 along foundation ditch short transverse parallel interval enclose purlin 7, it is described
Purlin is enclosed along the elongated setting of length direction of foundation pit enclosure structure 5.
A kind of assembling constructing method of the assembled horizontal struts system of subway foundation pit as mentioned, it is characterised in that concrete
Step is as follows：
Step one, by horizontal support platform 1, force transferring structure 8 integrated support unit is assembled into.
Step 2, the support unit for assembling is hung to the position of designed elevation 1 as ground floor support unit.
Step 3, the plan-position of accurate adjustment ground floor support unit and perpendicularity.
Step 4, the jack in jacking force transferring structure 8 makes roller tightly push up and is faced on foundation pit enclosure structure 5 admittedly
When connect, and the outer lateral earth pressure of foundation ditch is reached on horizontal support platform by force transmission mechanism.
Step 5, the first layer soil body of excavation is to the position of designed elevation 2.
Step 6, another support unit is integrally hung to the position of designed elevation 1 as second layer support unit.
Step 7, accurate adjustment second layer support unit plan-position and perpendicularity.
Step 8, the jack in jacking force transferring structure 8 makes roller tightly push up solid on foundation pit enclosure structure 5.
Step 9, shrinks the jack 10 of ground floor support unit force transmission mechanism, using roller along foundation pit enclosure structure 5
Walk, carry out the vertically movable of horizontal support platform, ground floor support unit is dropped at the position of designed elevation 2.
Step 10, excavates the second layer soil body 13.
Step 11, repeat step six is to step 10, until completing the earth excavation construction of foundation ditch.
Claims (9)
1. a kind of subway foundation pit assembled horizontal struts system, including being horizontally supported at foundation pit enclosure structure（5）Between level
Support platform（1）, the horizontal support platform（1）Length and short transverse parallel interval along foundation ditch is uniformly distributed, and it is special
Levy and be：The horizontal support platform（1）With foundation pit enclosure structure（5）Between be connected with force transmission mechanism（8）, the force transmission mechanism
（8）Along the side uniform intervals distribution of horizontal support platform.
2. subway foundation pit assembled horizontal struts system according to claim 1, it is characterised in that：The force transmission mechanism
（8）Including being connected to horizontal support platform（1）The jack of end（10）, be connected to the cradle head of jack front end（11）、
It is hinged on cradle head（11）On rolling wheel support（12）Be hinged on rolling wheel support（12）On roller（9）.
3. subway foundation pit assembled horizontal struts system according to claim 2, it is characterised in that：The rolling wheel support
（12）For triangular plate or bending strip board at an acute angle, its drift angle and cradle head（11）It is hinged, two base angles are symmetrically cut with scissors
It is connected to a roller（9）.
4. subway foundation pit assembled horizontal struts system according to claim 2, it is characterised in that：The jack（10）
End by connecting plate and horizontal support platform（1）Connection.
5. the subway foundation pit assembled horizontal struts system according to Claims 1-4 any one, it is characterised in that：Institute
Stating subway foundation pit assembled horizontal struts system also includes guide rail（3）With lifting drive unit（2）；
The guide rail（3）Along foundation pit enclosure structure（5）Length direction parallel interval arrange；The guide rail（3）It is by guide rail list
Unit is along foundation pit enclosure structure（5）Short transverse be vertically spliced；
The lifting drive unit（2）By unit rack（6）With horizontal support platform（1）Connection.
6. subway foundation pit assembled horizontal struts system according to claim 5, it is characterised in that：The unit rack
（6）Including being connected to horizontal support platform（1）The A-frame of end, the upper latch bearing for being connected to A-frame end and
The lower latch bearing being set in parallel in below latch bearing；
The upper latch bearing and lower latch bearing are detachably connected respectively by upper latch and lower latch with the counter-force hole of guide rail.
7. subway foundation pit assembled horizontal struts system according to claim 6, it is characterised in that：The lifting drive list
Unit（2）For hydraulic jack, including cylinder barrel and piston rod, wherein cylinder barrel is fixedly connected with upper latch bearing, and one end of piston rod is worn
Cross that latch bearing is flexibly connected with cylinder barrel, the other end is fixedly connected with lower latch bearing.
8. subway foundation pit assembled horizontal struts system according to claim 7, it is characterised in that：The force transmission mechanism
（8）It is connected between horizontal support platform and guide rail, its roller（9）With guide rail（3）It is slidably connected.
9. subway foundation pit assembled horizontal struts system according to claim 8, it is characterised in that：The guide rail（3）With
Foundation pit enclosure structure（5）Between be provided with one group along foundation ditch short transverse parallel interval and enclose purlin（7）, the purlin that encloses is along foundation pit enclosure
Structure（5）The elongated setting of length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621046239.3U CN206128079U (en) | 2016-09-09 | 2016-09-09 | Subway foundation pit assembled horizontal support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621046239.3U CN206128079U (en) | 2016-09-09 | 2016-09-09 | Subway foundation pit assembled horizontal support system |
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| Publication Number | Publication Date |
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| CN206128079U true CN206128079U (en) | 2017-04-26 |
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| CN201621046239.3U Active CN206128079U (en) | 2016-09-09 | 2016-09-09 | Subway foundation pit assembled horizontal support system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193053A (en) * | 2016-09-09 | 2016-12-07 | 中建三局集团有限公司 | A kind of subway foundation pit assembled horizontal struts system and assembling constructing method thereof |
-
2016
- 2016-09-09 CN CN201621046239.3U patent/CN206128079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193053A (en) * | 2016-09-09 | 2016-12-07 | 中建三局集团有限公司 | A kind of subway foundation pit assembled horizontal struts system and assembling constructing method thereof |
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