CN105908750B - Foundation ditch brace type steel support system - Google Patents
Foundation ditch brace type steel support system Download PDFInfo
- Publication number
- CN105908750B CN105908750B CN201610249848.7A CN201610249848A CN105908750B CN 105908750 B CN105908750 B CN 105908750B CN 201610249848 A CN201610249848 A CN 201610249848A CN 105908750 B CN105908750 B CN 105908750B
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- support
- foundation ditch
- hole
- shaped steel
- cylinder body
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 91
- 239000010959 steel Substances 0.000 title claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000002828 fuel tank Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 4
- 241000222712 Kinetoplastida Species 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000000717 retained effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
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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)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of foundation ditch brace type steel support system, it is desirable to provide one kind can carry out precharge to foundation ditch, reliably bear the soil pressure on the outside of foundation ditch, so as to effectively control the foundation ditch brace type steel support system of foundation ditch displacement.It includes the support bracket being arranged on building bottom plate and is arranged on foundation ditch side and supports the shaped steel slope support beam between bracket, and the lower end of shaped steel slope support beam is resisted against on support bracket, and opposite supporting type stress reservation member is provided between upper end and foundation ditch side；The opposite supporting type stress reservation member includes two support members that can mutually strut, and a wherein support member is connected with the upper end of shaped steel slope support beam, and another support member is resisted against on foundation ditch side.
Description
Technical field
The present invention relates to building foundation pit to go along with sb. to guard him field, and in particular to a kind of foundation ditch brace type steel support system.
Background technology
In order to ensure the safety of underground structure and foundation ditch surrounding enviroment, it is necessary to foundation pit side-wall and around using support, plus
Gu etc. safeguard measure.In building-supporting, when foundation ditch support width is when within 100 meters or slightly larger than 100 meters, conventional construction is
With shaped steel or armored concrete horizontal support；But when foundation ditch width is larger（It is greater than 150 meters）, generally use branch of clivus
Support.
The slope supporting construction generally use shaped steel slope support beam of foundation ditch is supported at present, and one end of beam is supportted on shaped steel slope
It is resisted against on base plate of foundation pit or on basement bottom board, the other end is resisted against on foundation ditch side.The slope supporting construction of foundation ditch at present
Simply it is supported simply by shaped steel slope support beam, shaped steel slope support beam is merely able to the passive soil born on the outside of foundation ditch
Pressure, it is difficult to effectively control foundation ditch displacement, easily produce the problems such as foundation ditch displacement increases.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided one kind can carry out pre-add to foundation ditch
Pressure, reliably bears the soil pressure on the outside of foundation ditch, so as to effectively control the foundation ditch brace type steel support system of foundation ditch displacement.
The technical scheme is that：
A kind of foundation ditch brace type steel support system, including be arranged on the support bracket built on bottom plate and be arranged on foundation ditch side
Shaped steel slope support beam between face and support bracket, the lower end of shaped steel slope support beam are resisted against on support bracket, on
Opposite supporting type stress reservation member is provided between end and foundation ditch side；The opposite supporting type stress reservation member includes two branch that can mutually strut
Support part part, and a wherein support member is connected with the upper end of shaped steel slope support beam, another support member is resisted against foundation ditch side
On face.
The foundation ditch brace type steel support system of this programme has opposite supporting type stress reservation member, thus can pass through jack pair
Foundation ditch applies precompression, reliably bears the soil pressure on the outside of foundation ditch, so as to effectively control foundation ditch displacement.
Preferably, self-adapting stretching supporting mechanism is provided between two support members of opposite supporting type stress reservation member, it is described
Self-adapting stretching supporting mechanism includes supporting the guiding cylinder body of beam length direction extension along shaped steel slope, is slidably arranged on guiding
Slide mass in cylinder body, the support bar being connected with slide mass and the support end plate for being arranged on support boom end.The guide cylinder
One end of body is connected with the support member close to shaped steel slope support beam, and the other end is provided with end cover, in end cover
Portion is provided with the end cap through hole coaxial with being oriented to cylinder body, and the support bar is the cylindrical bar coaxial with being oriented to cylinder body, and support bar passes through
End cap through hole, the medial surface of end cap through hole are provided with the end cap seal circle being engaged with support bar；The support end plate is positioned at guiding
On the outside of cylinder body, and end plate is supported to be connected with the support member close to foundation ditch side；The inner chamber for being oriented to cylinder body is by coaxially setting
The circular cylindrical cavity and conical bores put are formed, and circular cylindrical cavity is close close to shaped steel slope support beam, conical bores
End cover, the cross-sectional area of conical bores are gradually increased from shaped steel slope support beam toward end cover direction；The slip
Body includes the first piston body being arranged in cylindrical cavity body, the supporter being arranged in conical cavity body and connection first piston
The connecting rod of body and supporter, the support bar are connected with supporter, are provided with the supporter coaxial with guiding cylinder body
Cylindrical interior volume, support outside are provided with some pilot holes circumferentially uniform along guiding cylinder body, and pilot hole edge is oriented to cylinder body footpath
To extension, and pilot hole is connected with cylindrical interior volume, and second piston body, the end face of second piston body are provided with the cylindrical interior volume
The guide cone coaxial with second piston body is provided with, the guide cone, pilot hole and support bar are located at the same of second piston body
Side, the pilot hole is interior to be provided with support slipper, and support slipper is slidingly sealed with pilot hole and is connected, and post is stretched into one end of support slipper
Shape inner chamber and close to guide cone lateral surface or being resisted against on guide cone lateral surface, the other end is stretched into conical cavity body, towards the
The end face of the supporter of one piston body is provided with the balance through hole communicated with cylindrical interior volume, and balances in through hole and be provided with check valve；
It is provided with the support bar along the axially extending axial vent holes of cylinder body are oriented to, one end of axial vent holes is prolonged toward supporter direction
Stretch and be connected with cylindrical interior volume, support bar lateral surface is provided with the outer vent communicated with axial vent holes, and outer vent
Positioned at the outside for being oriented to cylinder body, the guide cylinder outside is provided with the water conservancy diversion through hole of the intracavity inter-connection with being oriented to cylinder body,
The water conservancy diversion through hole and supporter are located at the same side of first piston body, and the external port of water conservancy diversion through hole is provided with overflow valve.
This programme structure can make the precharge that jack pair foundation ditch applies, and precharge can be certainly after jack is withdrawn
Dynamic, complete, reliable be retained in foundation ditch brace type steel support system is supported to foundation ditch, so as to effectively control foundation ditch position
Move.
Preferably, the medial surface of circular cylindrical cavity is provided with ring limit block, the first piston body and shaped steel slope
Support beam is located at the opposite sides of ring limit block；It is provided with connecting rod along the axially extending outage of guiding cylinder body, the row
One end of fluid apertures extends toward supporter direction and is connected with cylindrical interior volume, and the other end extends through toward first piston body direction
First piston body, and the port for the outage being connected with the end face of first piston body is provided with first switch valve.
Preferably, the lateral surface for being oriented to cylinder body is provided with fuel tank, the external port of the water conservancy diversion through hole connects provided with three
Head, one end of three-way connection are connected with the external port of water conservancy diversion through hole, pass through first between the other end and fuel tank of three-way connection
Oil pipe is connected, and is connected between the 3rd end of three-way connection and fuel tank by the second oil pipe, and the overflow valve is arranged on first
On oil pipe, second switch valve is additionally provided with the first oil pipe, second oil pipe is provided with the 3rd controlled valve.
Preferably, guide cylinder outside is provided with the gathering hole of the intracavity inter-connection with being oriented to cylinder body, and gathering hole
Between first piston body and shaped steel slope support beam.
Preferably, the end face for the support slipper end stretched into conical cavity body is to match with conical bores medial surface
The extrados of conjunction, the end face for the support slipper end stretched into cylindrical interior volume are the intrados being engaged with guide cone lateral surface.
Preferably, supporter is in truncated cone-shaped, supporter and first piston body are coaxial.
Preferably, shaped steel slope support beam includes at least two H profile steels being arranged side by side.
Preferably, being connected between each shaped steel inner support beam by some reinforcement connecting plates, and strengthen connecting plate and type
Steel inner support beam is perpendicular.
The beneficial effects of the invention are as follows：Precharge can be carried out to foundation ditch, reliably bear the soil pressure on the outside of foundation ditch
Power, so as to effectively control foundation ditch displacement.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the foundation ditch brace type steel support system of embodiments of the invention 1.
Fig. 2 is the top view of the shaped steel slope support beam of embodiments of the invention 1.
Fig. 3 is the top view of the shaped steel slope support beam of embodiments of the invention 2.
Fig. 4 is the partial enlarged drawing at A in Fig. 3.
Fig. 5 is the partial enlarged drawing at B in Fig. 4.
In figure：Shaped steel slope support beam 1, strengthen connecting plate 11, opposite supporting type stress reservation member 1a, support member 1a1 are spacing
Support block 1a2；Self-adapting stretching supporting mechanism 2, it is oriented to cylinder body 21, slide mass 22, first piston body 22a, connecting rod 22b, branch
Support body 22c, end cover 23, support bar 24, support end plate 25, outer vent 26, axial vent holes 27, conical bores 28,
Cylindrical interior volume 29, support slipper 210, guide cone 211, second piston body 212, check valve 213, circular cylindrical cavity 214, outage
215, ring limit block 216, gathering hole 217, first switch valve 218, the first oil pipe 219, overflow valve 220, second switch valve
Door 221, water conservancy diversion through hole 222, three-way connection 223, the 3rd controlled valve 224, the second oil pipe 225, balance through hole 226, limiting block
Block 227, the spacing swivel nut 228 of check valve；Build bottom plate 3；Support bracket 4；Foundation ditch support base 5.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Embodiment 1：As shown in Figure 1 and Figure 2, a kind of foundation ditch brace type steel support system includes being arranged on foundation ditch side
Foundation ditch support base 5 including be arranged on building bottom plate 3 on support bracket 4 and be arranged on foundation ditch side and support bracket between
Shaped steel slope support beam 1.Foundation ditch support base is made up of shaped steel.Support bracket is made up of armored concrete.Shaped steel slope support beam
Including three H profile steels being arranged side by side.It is connected between each shaped steel inner support beam by some reinforcement connecting plates 11, and strengthens connecting
Fishplate bar and shaped steel inner support beam are perpendicular.
The lower end of shaped steel slope support beam is resisted against on support bracket, and opposite supporting type stress is provided between upper end and foundation ditch side
Reservation member 1a.Opposite supporting type stress reservation member includes two support member 1a1 that can mutually strut, and is arranged between two support members
Limited support block 1a2, and the limited support block forms reserved cavity between two support members.Support member is by H profile steel structure
Into, and form support member H profile steel two flange plates and web between side by side be provided with some floors.Limited support block is by H
Shaped steel is formed, and limited support block is bolted with support member.A support member and shaped steel slope in two support members
The upper end of support beam is connected, and another support member is resisted against on the upper foundation ditch support base of foundation ditch side.
The practice of construction application of the foundation ditch brace type steel support system of the present embodiment is as follows：
First, jack is placed between two support members and forms reserved cavity；Then, jack supports two support members
Open.
Second, insert steel plate washer between limited support block and support member, fill up limited support block and support member it
Between gap, make shaped steel slope support beam to support between foundation ditch support base and support bracket, so that jack pair foundation ditch be applied
The precompression added is retained in foundation ditch brace type steel support system, enables foundation ditch brace type steel support system reliably to bear to come
From the soil pressure on the outside of foundation ditch, so as to effectively control foundation ditch displacement；Finally, lifting jack unloading, and remove jack.
Embodiment 2：Remaining structure of the present embodiment is with reference to embodiment 1, its difference：
As shown in Figure 3, Figure 4, self-adapting stretching supporting mechanism is provided between two support members of opposite supporting type stress reservation member
2.Self-adapting stretching supporting mechanism includes supporting the guiding cylinder body 21 of beam length direction extension along shaped steel slope, is slidably arranged on
Slide mass 22 in guide cylinder body, the support bar 24 being connected with slide mass and the support end plate 25 for being arranged on support boom end.
The one end for being oriented to cylinder body is connected with close to the support member of shaped steel slope support beam, and the other end is provided with end cover 23.Sealing
The middle part of end cap is provided with the end cap through hole coaxial with being oriented to cylinder body.Support bar is the cylindrical bar coaxial with being oriented to cylinder body.Support bar
Through end cap through hole.The medial surface of end cap through hole is provided with the end cap seal circle being engaged with support bar.End plate is supported positioned at guiding
On the outside of cylinder body.Support end plate and support bar perpendicular.Support end plate is connected with the support member close to foundation ditch side.
The inner chamber for being oriented to cylinder body is made up of the circular cylindrical cavity 214 and conical bores 28 being coaxially disposed, and cylindrical cavity
Body is close to shaped steel slope support beam, and conical bores are close to end cover.The cross-sectional area of conical bores is by shaped steel branch of clivus
Support beam gradually increases toward end cover direction.
Slide mass includes the first piston body 22a being arranged in cylindrical cavity body, the support being arranged in conical cavity body
The body 22c and connecting rod 22b of connection first piston body and supporter.Guiding cylinder body between first piston body and end cover
Inner chamber is full of fluid.Supporter is in truncated cone-shaped, and the cross section of supporter is gradual from shaped steel slope support beam toward end cover direction
Increase.The gradient of supporter is identical with the gradient of conical bores.Supporter and first piston body are coaxial.Support bar and supporter
It is connected.The medial surface of circular cylindrical cavity is provided with ring limit block 216.First piston body is located at ring with shaped steel slope support beam
The opposite sides of shape limited block.Guide cylinder outside is provided with the gathering hole 217 of the intracavity inter-connection with being oriented to cylinder body.Operation
Mouth is between first piston body and shaped steel slope support beam.Gathering hole is located at ring limit block relative two with first piston body
Side.
The cylindrical interior volume 29 coaxial with being oriented to cylinder body is provided with supporter.Outside is supported to be provided with some along guide cylinder
The circumferentially uniform pilot hole of body.Pilot hole radially extends along cylinder body is oriented to, and pilot hole is connected with cylindrical interior volume.In pilot hole
Provided with support slipper 210.Support slipper is slidingly sealed with pilot hole and is connected, specifically, support slipper lateral surface be provided with
The O-ring seal that pilot hole is engaged.Second piston body 212 is provided with cylindrical interior volume.The end face of second piston body be provided with
The coaxial guide cone 211 of second piston body.Guide cone, pilot hole and support bar are located at the same side of second piston body.Support is slided
One end of block stretches into cylindrical interior volume and close to guide cone lateral surface or being resisted against on guide cone lateral surface, and the other end stretches into cone
In cavity.The end face for the support slipper end stretched into conical cavity body is the outer arc being engaged with conical bores medial surface
Face.The end face for the support slipper end stretched into cylindrical interior volume is the intrados being engaged with guide cone lateral surface.
As shown in Figure 4, Figure 5, the balance communicated with cylindrical interior volume is provided with towards the end face of the supporter of first piston body
Through hole 226, and balance in through hole and be provided with check valve 213.Check valve allows the liquid for being oriented to the interior intracavitary of cylinder body to enter in column
Intracavitary.The medial surface of balance through hole is provided with positive stop 227, and the external port for balancing through hole is provided with the spacing swivel nut 228 of check valve.It is single
It is connected through a screw thread between the spacing swivel nut of valve and balance through hole.Check valve be located at positive stop and the spacing swivel nut of check valve it
Between.
As shown in figure 4, it is provided with support bar along the axially extending axial vent holes 27 of guiding cylinder body.The one of axial vent holes
Hold and extend toward supporter direction and be connected with cylindrical interior volume.Support bar lateral surface is provided with the outer row communicated with axial vent holes
Stomata 26, and outer vent is positioned at the outside for being oriented to cylinder body.
Guide cylinder outside is provided with the water conservancy diversion through hole 222 of the intracavity inter-connection with being oriented to cylinder body, in the present embodiment
Water conservancy diversion through hole is connected with circular cylindrical cavity, and water conservancy diversion through hole is close to conical bores.Water conservancy diversion through hole and supporter are located at first
The same side of piston body.The lateral surface for being oriented to cylinder body is provided with fuel tank.The external port of water conservancy diversion through hole is provided with three-way connection 223.
One end of three-way connection is connected with the external port of water conservancy diversion through hole.Pass through the first oil pipe between the other end and fuel tank of three-way connection
219 are connected.It is connected between 3rd end of three-way connection and fuel tank by the second oil pipe 225.In the external port of water conservancy diversion through hole
Provided with overflow valve, the overflow valve 220 of the present embodiment is arranged on the first oil pipe.Second switch valve is additionally provided with first oil pipe
221.Second oil pipe is provided with the 3rd controlled valve 224.
It is provided with connecting rod along the axially extending outage 215 of guiding cylinder body.Prolong toward supporter direction one end of outage
Stretch and be connected with cylindrical interior volume, the other end extends through first piston body, and and first piston toward first piston body direction
The port for the outage that the end face of body is connected is provided with first switch valve 218.
The practice of construction application of the foundation ditch brace type steel support system of the present embodiment is as follows：
First, form reserved cavity as shown in figure 4, jack is placed between two support members；Close the 3rd switch valve
Door and first switch valve, open second switch valve；Then, hydraulic jack push, increasing pressure, two support members are strutted；At this
During support end plate by support bar, supporter and connecting rod first piston body will be driven to be elapsed toward foundation ditch support base, make the
The oil pressure increase of guiding cylinder body between one piston body and end cover；
When oil pressure is more than the setup pressure value of overflow valve, the fluid between first piston body and end cover will be by leading
Opening and the first oil pipe are back to fuel tank so that support end plate, support bar, supporter, connecting rod and first piston body by
Gradually elapse toward foundation ditch support base, until support end plate is acted against on foundation ditch support base, applied by jack pair foundation ditch purlin pre-
Pressure；
As shown in Figure 4, Figure 5, in support end plate, support bar, supporter, connecting rod and first piston body gradually toward foundation ditch branch
During supportting seat passage, the fluid between first piston body and end cover will also gradually be entered by balancing through hole and check valve
Enter in the cylindrical interior volume between second piston body and balance through hole, and then second piston body is elapsed toward foundation ditch support base；And
Second piston body will drive support slipper gradually to move outward during being elapsed toward foundation ditch support base（I.e. drive support slipper by
Gradually moved toward conical bores medial surface）And it is resisted against toward on conical bores medial surface.
3rd, lifting jack unloading, and remove jack.Because now support slipper is resisted against toward conical bores medial surface
On, and the fluid in cylindrical interior volume can not be flowed out by check valve, ensureing that support slipper supports will not retract；So as to be unloaded in jack
After load, the precompression that jack pair foundation ditch applies automatically, completely, is reliably retained in foundation ditch brace type steel support system,
Foundation ditch brace type steel support system is set reliably to bear the soil pressure on the outside of foundation ditch, so as to effectively control foundation ditch position
Move；Without placing steel cushion block or steel cushion block and pad, and steel cushion block or steel cushion block between end cover and support end plate
And precharge completely, reliably can not be often retained in foundation ditch brace type steel support system by pad because gap be present.
Operator can select to insert steel plate washer between limited support block and support member after removing jack, fill up limit
Gap between position support block and support member；It can also select to insert steel pad not between limited support block and support member
Piece.
4th, when dismantling foundation ditch brace type steel support system, it is only necessary to open the 3rd controlled valve and first switch valve
Door, fluid in cylindrical interior volume is discharged by outage and first switch valve, make support slipper toward supporter contract, from
And two support members are drawn close, and then foundation ditch brace type steel support system is dismantled.
Claims (8)
1. a kind of foundation ditch brace type steel support system, including be arranged on the support bracket built on bottom plate and be arranged on foundation ditch side
With supporting the shaped steel slope support beam between bracket, it is characterized in that, the lower end of shaped steel slope support beam is resisted against support ox
On leg, opposite supporting type stress reservation member is provided between upper end and foundation ditch side；The opposite supporting type stress reservation member can be mutual including two
The support member strutted, an and wherein support member is connected with the upper end of shaped steel slope support beam, another support member against
On foundation ditch side；
Self-adapting stretching supporting mechanism, the self-adapting stretching are provided between two support members of the opposite supporting type stress reservation member
Supporting mechanism includes supporting the guiding cylinder body of beam length direction extension, the cunning being slidably arranged in guide cylinder body along shaped steel slope
Kinetoplast, the support bar being connected with slide mass and the support end plate for being arranged on support boom end；
Described one end for being oriented to cylinder body is connected with close to the support member of shaped steel slope support beam, and the other end is provided with sealed end
Lid, the middle part of end cover are provided with the end cap through hole coaxial with being oriented to cylinder body, and the support bar is the circle coaxial with being oriented to cylinder body
Mast, support bar pass through end cap through hole, and the medial surface of end cap through hole is provided with the end cap seal circle being engaged with support bar；The branch
Support end plate is located at the external side of guide cylinder, and supports end plate to be connected with the support member close to foundation ditch side；
The inner chamber for being oriented to cylinder body is made up of the circular cylindrical cavity and conical bores being coaxially disposed, and circular cylindrical cavity is close
Shaped steel slope support beam, conical bores close to end cover, the cross-sectional areas of conical bores from shaped steel slope support beam toward
End cover direction gradually increases；
First piston body that the slide mass includes being arranged in cylindrical cavity body, the supporter that is arranged in conical cavity body and
The connecting rod of first piston body and supporter is connected, the support bar is connected with supporter, is provided with the supporter with leading
The cylindrical interior volume coaxial to cylinder body, support outside are provided with some pilot holes circumferentially uniform along guiding cylinder body, pilot hole
Radially extended along cylinder body is oriented to, and pilot hole is connected with cylindrical interior volume,
Second piston body is provided with the cylindrical interior volume, the end face of second piston body is provided with the guiding coaxial with second piston body
Cone, the guide cone, pilot hole and support bar are located at the same side of second piston body, support slipper are provided with the pilot hole,
Support slipper is slidingly sealed with pilot hole and is connected, and one end of support slipper is stretched into cylindrical interior volume and close to guide cone lateral surface or supported
Leaning against on guide cone lateral surface, the other end is stretched into conical cavity body,
The balance through hole communicated with cylindrical interior volume is provided with towards the end face of the supporter of first piston body, and balances and is set in through hole
There is check valve；It is provided with the support bar along the axially extending axial vent holes of guiding cylinder body, the past branch in one end of axial vent holes
Support body direction extends and is connected with cylindrical interior volume, and support bar lateral surface is provided with the outer vent communicated with axial vent holes,
And outer vent is located at the outside for being oriented to cylinder body,
The guide cylinder outside is provided with the water conservancy diversion through hole of the intracavity inter-connection with being oriented to cylinder body, the water conservancy diversion through hole and branch
Support body is located at the same side of first piston body, and the external port of water conservancy diversion through hole is provided with overflow valve.
2. foundation ditch brace type steel support system according to claim 1, it is characterized in that, the medial surface of the circular cylindrical cavity
Ring limit block is provided with, the first piston body is located at the opposite sides of ring limit block with shaped steel slope support beam；It is described
It is provided with connecting rod along the axially extending outage of cylinder body is oriented to, one end of the outage extends toward supporter direction and and post
Shape intracavity inter-connection, the other end extend through first piston body toward first piston body direction, and with the end face of first piston body
The port for the outage being connected is provided with first switch valve.
3. foundation ditch brace type steel support system according to claim 1 or 2, it is characterized in that, the outside for being oriented to cylinder body
Face is provided with fuel tank, and the external port of the water conservancy diversion through hole is provided with three-way connection, and one end of three-way connection is outer with water conservancy diversion through hole
Port is connected, and is connected between the other end and fuel tank of three-way connection by the first oil pipe, the 3rd end and the oil of three-way connection
It is connected between case by the second oil pipe, the overflow valve is arranged on the first oil pipe, and second switch is additionally provided with the first oil pipe
Valve, second oil pipe are provided with the 3rd controlled valve.
4. foundation ditch brace type steel support system according to claim 1 or 2, it is characterized in that, the guide cylinder outside
Be provided with the gathering hole of the intracavity inter-connection with being oriented to cylinder body, and gathering hole be located at first piston body and shaped steel slope support beam it
Between.
5. foundation ditch brace type steel support system according to claim 1 or 2, it is characterized in that, it is described to stretch into conical bores
The extrados being engaged with conical bores medial surface is in the end face of interior support slipper end, the support stretched into cylindrical interior volume
The end face of slider end is the intrados being engaged with guide cone lateral surface.
6. foundation ditch brace type steel support system according to claim 1 or 2, it is characterized in that, the supporter is in truncated cone-shaped,
Supporter and first piston body are coaxial.
7. foundation ditch brace type steel support system according to claim 1 or 2, it is characterized in that, shaped steel slope support beam
Including at least two H profile steels being arranged side by side.
8. foundation ditch brace type steel support system according to claim 7, it is characterized in that, pass through between each shaped steel inner support beam
Some reinforcement connecting plates are connected, and reinforcement connecting plate and shaped steel inner support beam are perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249848.7A CN105908750B (en) | 2016-04-21 | 2016-04-21 | Foundation ditch brace type steel support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249848.7A CN105908750B (en) | 2016-04-21 | 2016-04-21 | Foundation ditch brace type steel support system |
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| Publication Number | Publication Date |
|---|---|
| CN105908750A CN105908750A (en) | 2016-08-31 |
| CN105908750B true CN105908750B (en) | 2018-01-02 |
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| CN201610249848.7A Active CN105908750B (en) | 2016-04-21 | 2016-04-21 | Foundation ditch brace type steel support system |
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| CN109594987B (en) * | 2018-10-18 | 2020-11-03 | 中国人民解放军63926部队 | Tunnel cross section complete support re-excavation device and construction method thereof |
| CN109958136A (en) * | 2019-04-28 | 2019-07-02 | 安徽永昊建设工程有限公司 | The lattice column support system and its construction method of implementable prestressing force compensation |
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| DE19811535A1 (en) * | 1998-03-17 | 1999-10-14 | Andreas Boden Bausatzhaus & Ba | Deep-level construction crib and slide rail systems |
| CN102979101A (en) * | 2012-12-12 | 2013-03-20 | 上海强劲地基工程股份有限公司 | Reinforced concrete inner support with pre-stressed loaders for supporting foundation pit |
| CN103276739A (en) * | 2013-06-28 | 2013-09-04 | 上海强劲地基工程股份有限公司 | Foundation pit supporting structure with oblique support and pre-stress surrounding purlin |
| CN103437366A (en) * | 2013-08-19 | 2013-12-11 | 浙江博雷重型机床制造有限公司 | Prestress loading device connecting part |
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| CN105908750A (en) | 2016-08-31 |
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Denomination of invention: Inclined steel bracing system for foundation pit Effective date of registration: 20221201 Granted publication date: 20180102 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Hangzhou Linping sub branch Pledgor: Dongtong Geotechnical Science and Technology Inc. Registration number: Y2022330003353 |
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