CN106978813A - The anti-failure power transmission component of the relay of large deep foundation pit bracing members system - Google Patents
The anti-failure power transmission component of the relay of large deep foundation pit bracing members system Download PDFInfo
- Publication number
- CN106978813A CN106978813A CN201710235286.5A CN201710235286A CN106978813A CN 106978813 A CN106978813 A CN 106978813A CN 201710235286 A CN201710235286 A CN 201710235286A CN 106978813 A CN106978813 A CN 106978813A
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- Prior art keywords
- support unit
- force transmitting
- power transmission
- transmitting board
- transmission component
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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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)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of anti-failure power transmission component of the relay of large deep foundation pit bracing members system, bracing members system includes the bracing members being supported in foundation ditch, bracing members include at least one first support unit and one second support unit, and the first support unit is abutted with the second support unit along same axis；Relay includes the power transmission component for being installed on the relaying jack between the first support unit and the second support unit and being installed on the outside of relaying jack, the first end of power transmission component extends to the first support unit direction and is fixedly connected with the first support unit, and the second end of power transmission component extends to the second support unit direction and is slidably connected with the second support unit.Power transmission component one end of the present invention is fixed, and one end is slided, and constitutes the force transfer structure similar to simply supported beam, it is allowed to relay jack axial free movement, and plays a part of sharing the moment of flexure and shearing at bracing members connecting node, and relaying jack is played a protective role.
Description
Technical field
The present invention relates to pattern foundation pit supporting structure field, more particularly to a kind of relay of large deep foundation pit bracing members system is anti-
Fail power transmission component.
Background technology
Large deep foundation pit engineering can improve efficiency of construction using the type steel support system of pin-connected panel, reduce Construction on Environment
Influence.It is well known that conventional axle power compensation device is typically mounted at the end of supporting construction, it is impossible to solve in Large Foundation Pit
Axial force of the supports skewness, the problem of adjustment difficulty is big.And the steel support structure of overlength exist with temperature Change stretch with
And axle power, the problems such as spatial distribution is uneven, the performance of influence bracing members efficiency even jeopardizes the safety of support system, therefore needs
Built-up shaft force compensating device and corresponding adjusting method are set in bracing members system, wanting for Large Scale Deep Foundation Pit Support is adapted to
Ask.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of the anti-of relay of large deep foundation pit bracing members system
Fail power transmission component, can effectively solve the problem that axial force of the supports skewness in Large Foundation Pit, the problem of adjustment difficulty is big.
To realize above-mentioned technique effect, the invention discloses a kind of the anti-of relay of large deep foundation pit bracing members system
Fail power transmission component, and bracing members system includes the bracing members being supported in foundation ditch, and the bracing members include at least one first support
Unit and one second support unit, first support unit are abutted with second support unit along same axis；
Relay include being installed on relaying jack between first support unit and second support unit,
And it is installed on the power transmission component on the outside of the relaying jack, the first end of the power transmission component is to first support unit
Direction extends simultaneously to be fixedly connected with first support unit, and the second end of the power transmission component is to the second support unit side
It is slidably connected to extension and with second support unit；The power transmission component includes relative two located at the relaying jack
The first force transmitting board and the second force transmitting board of side, the first end and institute of the first end of first force transmitting board and second force transmitting board
State the first support unit to be fixedly connected, the second end of the second end of first force transmitting board and second force transmitting board and described the
Two support units are slidably connected.
Further improve of the invention is that first support unit is i shaped steel with second support unit,
The first end of first force transmitting board and the first end of second force transmitting board and the wing plate of first support unit are fixed；Institute
The both sides for stating the second end of the first force transmitting board are provided with the first connecting plate, and the both sides at the second end of second force transmitting board are provided with second
Connecting plate, first connecting plate is connected with second connecting plate by fastener, and first force transmitting board, described second pass
Power plate, first connecting plate and second connecting plate enclose to be formed slides the slipping space set for second support unit.
Of the invention further improve be, between first force transmitting board and second support unit and described the
Antifriction separation layer is provided between two force transmitting boards and second support unit.
Further improve of the invention is that the antifriction separation layer is anti-friction agent.
The present invention, which is further improved, to be, the second end of the second end of first force transmitting board and second force transmitting board
The corresponding mounting hole offered for installing locking part between the wing plate of the second support unit.
Further improve of the invention is that first force transmitting board and second force transmitting board include being oppositely arranged respectively
In first support unit wing plate and second support unit wing plate both sides the first angle steel and the second angle steel, it is described
Angle cleat is connected between first angle steel and second angle steel.
The present invention makes it have following beneficial effect as a result of above technical scheme：
1st, relay is using relaying jack and power transmission component composition, and the first end of power transmission component is fixing end, with the
One support unit is fixedly connected, and the second end of power transmission component is free end, is slidably connected with the second support unit, utilizes power transmission group
Part can ensure effective transmission of the axial force to relaying jack；
2nd, power transmission component one end is fixed, and one end is slided, and constitutes the force transfer structure similar to simply supported beam, it is allowed to relay jack
Axial free movement, and play a part of sharing moment of flexure and shearing at bracing members connecting node, guarantor is played to relaying jack
Shield is acted on；
3rd, in order to reduce friction, antifriction is set to isolate between power transmission component and the first support unit and the second support unit
Layer, reduces frictional resistance, it is ensured that the axial force for relaying jack is freely transmitted；
4th, under relaying jack failure conditions, power transmission component can be connected by screw bolts or weld and first sliding side
Support unit is fixed, and substitutes relaying jack transmission axle power.
Brief description of the drawings
Fig. 1 for the present invention in large deep foundation pit bracing members system schematic diagram.
Fig. 2 for the present invention in large deep foundation pit bracing members system part elevation schematic diagram.
Fig. 3 is a kind of solid of the anti-failure power transmission component of the relay of large deep foundation pit bracing members system of the invention point
Solution structure schematic diagram.
Fig. 4 is a kind of facade knot of the anti-failure power transmission component of the relay of large deep foundation pit bracing members system of the invention
Structure schematic diagram.
Fig. 5 is a kind of vertical view knot of the anti-failure power transmission component of the relay of large deep foundation pit bracing members system of the invention
Structure schematic diagram.
Fig. 6 is Fig. 4 A-A diagrammatic cross-sections.
Fig. 7 is Fig. 4 B-B diagrammatic cross-sections.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is further detailed explanation.
First, refering to shown in Fig. 1 and Fig. 2, large deep foundation pit bracing members system it is main by supporting construction, enclose the and of purlin structure 21
Axle power compensation system is constituted.Enclose purlin structure 21 to set one week along foundation ditch wall 10, the bottom for enclosing purlin structure 21 is provided with A-frame
211, for supporting and purlin structure 21 is enclosed in positioning, as shown in Figure 2；In the corner for enclosing purlin structure 21, angle brace 212 can also be set,
As shown in figure 1, to strengthen enclosing resistance to overturning of the purlin structure 21 with foundation ditch wall 10.Supporting construction includes being supported in enclosing purlin structure
Bracing members 11 in 21 and the vertical supporting 12 being supported between the bottom of bracing members 11 and bottom of foundation ditch, bracing members 11 are used to support
Foundation ditch wall 10, prevents foundation ditch deformation of wall from caving in, and vertical supporting 12 plays a part of supporting bracing members 11.Bracing members 11 enter one
Step includes at least one first support unit 111 and one second support unit 112, and the first support unit 111 and the second support are single
Member 112 is abutted along same axis.
The axle power compensation system of large deep foundation pit bracing members system in the present invention is main by the end installed in bracing members 11
The hydraulic servo device 13 in portion and 14 liang of the relay between the first support unit 111 and the second support unit 112
Part is constituted, and the hydraulic servo device 13 installed in the end of bracing members 11 is main servo-drive system, installed in the first support unit 111
Relay 14 between the second support unit 112 is auxiliary servo-drive system, and hydraulic servo device 13 is assisted with relay 14
Same-action, the common axle power compensation and adjustment for completing foundation pit steel support 11.
Hydraulic servo device 13 includes what is be connected to the end jack of the end of bracing members 11 and be connected with end jack
Hydrauservo System, the end jack is hydraulic jack, and the end jack can be controlled by Hydrauservo System
Axle power.Purlin structure 21 is enclosed in order to avoid the recoil that end jack pair encloses the generation of purlin structure 21 is damage, purlin knot can enclosed
One segment type steel strengthening segment 22 is further set between structure 21 and end jack, to avoid the recoil of end jack from directly making
The balance for enclosing purlin structure 21 is destroyed with purlin structure 21 is enclosed, diagonal brace can be further set in the both sides of the shaped steel strengthening segment
23 carry out supporting.
Relay can solve bracing members axle power skewness in Large Foundation Pit as the emphasis of the present invention, and adjustment is difficult
The problem of spending big.As shown in fig.3, relay includes relaying jack 140 and power transmission component, wherein, relay jack 140
For hydraulic jack, it is installed between the first support unit 111 and the second support unit 112, and relaying jack 140 can be with end
The Hydrauservo System connection of portion's jack, the axle power of jack 140 is relayed using Hydrauservo System Collaborative Control.Power transmission group
Part located at the outside of relaying jack 140, the first end of power transmission component extend to the direction of the first support unit 111 and with first
Support unit 111 is fixedly connected, the second end of power transmission component extend to the direction of the second support unit 112 and with the second support unit
112 are slidably connected.In the present embodiment, power transmission component includes the first force transmitting board of the opposite sides located at relaying jack 140
141 and second force transmitting board 142, the first end and the first support unit of the first end of the first force transmitting board 141 and the second force transmitting board 142
111 are fixedly connected, and the second end of the second end of the first force transmitting board 141 and the second force transmitting board 142 is slided with the second support unit 112
Connection, and end is supported in the second end of relaying jack 140 for hydraulic thrust, thus, power transmission component one end is fixed, and one end is slided, and is constituted
Similar to the force transfer structure of simply supported beam, it is allowed to relay the axial free movement of jack 140, and play and share the first support unit
111 and second support unit 112 connecting node at moment of flexure and shearing effect, to relaying jack 140 can also play guarantor
Shield is acted on.
Coordinate shown in Fig. 4~7, in the present embodiment, the first support unit 111 and the second support unit 112 use I-shaped
Shaped steel, the respectively wing plate including web and located at web both sides.The first end of first force transmitting board 141 and the second force transmitting board 142
First end and the wing plate of the first support unit 111 are bolted to connection；Pass through the first end in the first force transmitting board 141,
Correspondence opens up the bolt hole worn for bolt on the wing plate of the first end of two force transmitting boards 142 and the first support unit 111, by first
The first end of force transmitting board 141 fits in the upper surface of the upper flange of the first support unit 111, then uses bolt by both companies of fixation
Connect；Likewise, the first end of the second force transmitting board 142 to be fitted in the lower surface of the lower wing plate of the first support unit 111, then use
Both are fixedly connected by bolt.
The both sides at the second end of the first force transmitting board 141 are provided with the first connecting plate 151, the second end of the second force transmitting board 142
Both sides are provided with the second connecting plate 152, and the first connecting plate 151 and the second connecting plate 152 are made using L-type angle steel, and the one of L-type angle steel
Side is welded with the first connecting plate 151 and the second connecting plate 152, the L-type angle steel on the first connecting plate 151 and the second connecting plate 152
Another side it is bonded to each other and offer bolt hole respectively, using fastener, such as bolt is fixedly connected, so that the first power transmission
Plate 141, the second force transmitting board 142, the first connecting plate 151 and the second connecting plate 152 are enclosed to be formed to slide for the second support unit 112 and set
Slipping space 16.Second support unit 112 is slidedly arranged in slipping space 16, realizes that the hydraulic thrust of relaying jack 140 supports end
Axial free movement, and share the first support unit 111 and the moment of flexure at the connecting node of the second support unit 112 and cut
Power, plays a protective role to relaying jack 140；It can effectively keep relaying jack 140 using slipping space 16 simultaneously
It is axially moved track, it is ensured that effective transmission of axle power.Further, in order to reduce the second support unit rubbing in slipping space 16
Wipe, divide between the first force transmitting board 141 and the second support unit 112 between the second force transmitting board 142 and the second support unit 112
Not She You antifriction separation layer, the antifriction separation layer can be the inner surface and the second force transmitting board 142 for being coated on the first force transmitting board 141
The anti-friction agent of inner surface, is further ensured that freely transmitting for the axial force to relaying jack 140.
In the present embodiment, the first force transmitting board 141 and the second force transmitting board 142, which are respectively adopted, is relatively arranged on the first support list
The first angle steel 191 and the second angle steel 192 of the both sides of the wing plate of member 111 and the wing plate of the second support unit 112, in the first angle steel
191 and second are connected by angle cleat 193 between angle steel 192, and the first angle steel 191 and the second angle steel 192 are respectively L-type angle
Steel, bolt hole is opened in the surface of L-type angle steel.
The first end of relaying jack 140 is connected by a first axle holding structure with the first support unit 111, and this
One axis holding structure includes the first end plate 181 of the first end located at relaying jack 140, located at the first support unit 111
End the second end plate 182 and the First Transition plate 183 that is connected between the end plate 182 of first end plate 181 and second；In
It is connected after the second end of jack 140 by a second axis holding structure with the second support unit 112, the second axis is kept
Structure includes the 3rd end plate 184 located at the second end of relaying jack 140, the located at the end of the second support unit 112
Four end plates 185 and the second rebound 186 being connected between the 3rd end plate 184 and the 4th end plate 185.Utilize first axle
Holding structure and second axis holding structure may insure to relay first support unit of the axis with its two ends of jack 140
111 and second the axis of support unit 112 on the same line or be parallel to each other, and overcome due to the He of the first support unit 111
Caused by the end out-of-flatness of second support unit 112 and relaying jack 140 both can not smooth connection defect.Enter one
Step, between the surrounding corner of the end plate 182 of first end plate 181 and second and the 3rd end plate 184 and the 4th end plate 185 surrounding
Bolt is respectively adopted between corner to be attached, to strengthen first axle holding structure and the first axle holding structure knot of itself
Structure intensity.
Further, can be under relaying jack failure conditions, power transmission component can be connected by screw bolts or weld sliding side
Connect, substitute relaying jack transmission axle power.When being connected by screw bolts, only need in advance power transmission component the first force transmitting board the
The corresponding installation offered for installing locking part between two ends and the second end of the second force transmitting board and the wing plate of the second support unit
Hole, under relaying jack failure conditions, with locking part, such as bolt is fixed, easy to use, and effect is notable.
The anti-failure power transmission component of the relay of large deep foundation pit bracing members system of the present invention passes through installed in foundation ditch steel
The hydraulic servo device of supporting base end portion and the relay synergy in the middle of foundation pit steel support, it is common to complete foundation ditch steel
The axle power compensation and adjustment of support；Wherein, relay is using relaying jack and power transmission component composition, the first of power transmission component
Hold as fixing end, be fixedly connected with the first support unit, the second end of power transmission component is free end, is slided with the second support unit
Connection, effective transmission of the axial force to relaying jack can be effectively ensured using power transmission component；Power transmission component one end is fixed,
One end is slided, and constitutes the force transfer structure similar to simply supported beam, it is allowed to relay jack axial free movement, and play and share steel branch
The moment of flexure at connecting node and the effect of shearing are supportted, jack is played a protective role；In order to reduce friction, power transmission component and
Anti-friction agent is set between one support unit and the second support unit, it is ensured that the axial force for relaying jack is freely transmitted；Enter
One step, under relaying jack failure conditions, power transmission component can be consolidated sliding side and being connected by screw bolts or weld with bracing members
It is fixed, substitute relaying jack transmission axle power.
Axle power compensation is carried out using the anti-failure power transmission component of the relay of large deep foundation pit bracing members system of the present invention
Construction it is as follows：
(1) pit earthwork is excavated, and purlin structure is enclosed in installation, and assembled foundation pit steel support installs hydraulic servo device, installs relaying
Device.
(2) start Hydrauservo System, first adjust the pressure of the end jack of hydraulic servo device to design load
70%, the relaying jack of relay is then adjusted, makes the pressure value of two groups of jack equal, and equal to design load.
(3) during foundation pit construction, when pressure is less than design load in the middle part of bracing members system, Hydrauservo System is started,
First regulation relaying jack, makes its pressure increase to the 110% of design load, then adjustment end jack, makes two groups of jack
Pressure be equal to design load.When pressure is more than design load in the middle part of bracing members system, start Hydrauservo System, first regulation relaying
Jack, makes its pressure reduce to the 90% of design load, then end jack, makes the pressure of two groups of jack be equal to design
Value.
Compared with prior art, the anti-failure power transmission component tool of the relay of large deep foundation pit bracing members system of the present invention
Have the following advantages：
By the anti-failure power transmission component of the relay of large deep foundation pit bracing members system of the present invention to bracing members system
Axle power compensation is carried out using hydraulic jack, it is possible to achieve to the active control of foundation pit deformation, reduce foundation pit construction to environment
Influence；
By hydraulic servo device and the mutually coordinated effect of relay, large deep foundation pit overlength bracing members knot can be overcome
The problem of structure Stress non-homogeneity is distributed, solves the problems, such as the temperature benefit during bracing members system use and compatibility of deformation.
The present invention is described in detail above in association with drawings and Examples, those skilled in the art can basis
Described above makes many variations example to the present invention.Thus, some of embodiment details should not constitute limitation of the invention,
The present invention regard the scope defined using appended claims as protection scope of the present invention.
Claims (6)
1. a kind of anti-failure power transmission component of the relay of large deep foundation pit bracing members system, bracing members system includes being supported in
Bracing members in foundation ditch, the bracing members include at least one first support unit and one second support unit, first support
Unit is abutted with second support unit along same axis, it is characterised in that：Relay includes being installed on described the
Relaying jack between one support unit and second support unit and the biography being installed on the outside of the relaying jack
Power component, the first end of the power transmission component extends to the first support unit direction and fixed with first support unit
Connection, the second end of the power transmission component, which extends to the second support unit direction and slided with second support unit, to be connected
Connect；
The power transmission component includes the first force transmitting board and the second force transmitting board of the opposite sides located at the relaying jack, described
The first end of first force transmitting board and the first end of second force transmitting board are fixedly connected with first support unit, and described first
Second end of force transmitting board and the second end of second force transmitting board are slidably connected with second support unit.
2. the anti-failure power transmission component of the relay of large deep foundation pit bracing members system as claimed in claim 1, its feature
It is：First support unit is i shaped steel, the first end of first force transmitting board and institute with second support unit
The first end and the wing plate of first support unit for stating the second force transmitting board are fixed；The both sides at the second end of first force transmitting board
Provided with the first connecting plate, the both sides at the second end of second force transmitting board are provided with the second connecting plate, first connecting plate and institute
State the second connecting plate to connect by fastener, first force transmitting board, second force transmitting board, first connecting plate and described
Second connecting plate encloses to be formed slides the slipping space set for second support unit.
3. the anti-failure power transmission component of the relay of large deep foundation pit bracing members system as claimed in claim 2, its feature
It is：Between first force transmitting board and second support unit and second force transmitting board and second support unit
Between be provided with antifriction separation layer.
4. the anti-failure power transmission component of the relay of large deep foundation pit bracing members system as claimed in claim 3, its feature
It is：The antifriction separation layer is anti-friction agent.
5. the anti-failure power transmission component of the relay of large deep foundation pit bracing members system as claimed in claim 2, its feature
It is：The wing plate of second end of first force transmitting board and the second end of second force transmitting board and second support unit it
Between correspondence offer for install locking part mounting hole.
6. the anti-failure power transmission component of the relay of large deep foundation pit bracing members system as claimed in claim 2, its feature
It is：First force transmitting board and second force transmitting board respectively include be relatively arranged on first support unit wing plate and
The first angle steel and the second angle steel of the wing plate both sides of second support unit, between first angle steel and second angle steel
It is connected with angle cleat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235286.5A CN106978813B (en) | 2016-01-13 | 2016-01-13 | The anti-failure power transmission component of the relay of large deep foundation pit bracing members system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019010.9A CN105569053B (en) | 2016-01-13 | 2016-01-13 | A kind of axle power compensation system of large deep foundation pit bracing members system |
| CN201710235286.5A CN106978813B (en) | 2016-01-13 | 2016-01-13 | The anti-failure power transmission component of the relay of large deep foundation pit bracing members system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019010.9A Division CN105569053B (en) | 2016-01-13 | 2016-01-13 | A kind of axle power compensation system of large deep foundation pit bracing members system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106978813A true CN106978813A (en) | 2017-07-25 |
| CN106978813B CN106978813B (en) | 2019-05-17 |
Family
ID=55879640
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235249.4A Active CN106869140B (en) | 2016-01-13 | 2016-01-13 | A kind of relay for the compensation of large deep foundation pit bracing members system axle power |
| CN201610019010.9A Active CN105569053B (en) | 2016-01-13 | 2016-01-13 | A kind of axle power compensation system of large deep foundation pit bracing members system |
| CN201710235286.5A Active CN106978813B (en) | 2016-01-13 | 2016-01-13 | The anti-failure power transmission component of the relay of large deep foundation pit bracing members system |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235249.4A Active CN106869140B (en) | 2016-01-13 | 2016-01-13 | A kind of relay for the compensation of large deep foundation pit bracing members system axle power |
| CN201610019010.9A Active CN105569053B (en) | 2016-01-13 | 2016-01-13 | A kind of axle power compensation system of large deep foundation pit bracing members system |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN106869140B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106522240B (en) * | 2016-11-11 | 2019-03-12 | 上海市机械施工集团有限公司 | A kind of two-way bracing members are synchronous to apply prestressed construction method |
| CN106638614B (en) * | 2016-11-11 | 2019-01-18 | 上海市机械施工集团有限公司 | A kind of the dynamic regulation system and dynamic regulation method of two-way steel support structure |
| CN106522238A (en) * | 2016-11-11 | 2017-03-22 | 上海市机械施工集团有限公司 | Axial loading method for steel supports |
| CN106437157B (en) * | 2016-11-11 | 2020-02-21 | 上海市机械施工集团有限公司 | Grouping regulation and control method for axial force of steel support structure |
| CN106638623B (en) * | 2017-02-20 | 2018-07-27 | 长江勘测规划设计研究有限责任公司 | Load-compensating support device and method |
| CN107964959A (en) * | 2017-12-05 | 2018-04-27 | 广州鑫桥建筑工程有限公司 | A kind of prefabricated assembled concrete support system |
| CN110359466A (en) * | 2019-07-08 | 2019-10-22 | 中国建筑第八工程局有限公司 | Mechanical self-latching type hydraulic servo end construction and its construction method |
| CN110965560A (en) * | 2019-12-31 | 2020-04-07 | 上海市机械施工集团有限公司 | Foundation pit steel supporting structure and foundation pit steel supporting system |
| CN111877357B (en) * | 2020-07-12 | 2022-02-08 | 福建岩土工程勘察研究院有限公司 | Deep foundation pit concrete support axial force compensation method |
| CN114922196A (en) * | 2022-05-23 | 2022-08-19 | 上海建工一建集团有限公司 | Overlong distributed shrinkage compensation concrete supporting structure and construction method |
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| JPS5850226A (en) * | 1981-09-21 | 1983-03-24 | Marubeni Kenzai Lease Kk | Brace receiver |
| CN101463606A (en) * | 2007-12-19 | 2009-06-24 | 上海隧道工程股份有限公司 | Foundation pit controllable hydraulic steel support and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106978813B (en) | 2019-05-17 |
| CN105569053A (en) | 2016-05-11 |
| CN106869140B (en) | 2019-03-08 |
| CN105569053B (en) | 2017-08-04 |
| CN106869140A (en) | 2017-06-20 |
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