CN208501697U - Precisely adjust the device of foundation pit steel support brace pre axial force - Google Patents
Precisely adjust the device of foundation pit steel support brace pre axial force Download PDFInfo
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- CN208501697U CN208501697U CN201821011823.4U CN201821011823U CN208501697U CN 208501697 U CN208501697 U CN 208501697U CN 201821011823 U CN201821011823 U CN 201821011823U CN 208501697 U CN208501697 U CN 208501697U
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- steel plate
- fixed
- cylinder
- foundation pit
- fixation steel
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Abstract
The utility model discloses a kind of devices for precisely adjusting foundation pit steel support brace pre axial force, are related to building foundation pit supporting equipment technical field.Described device includes fixation steel plate, left load slot, right load slot, hydraulic jack, hydraulic pump, load cell, displacement sensor and control panel；Fixation steel plate is provided with two pieces and is fixed by bolts on the linking beam of two sides respectively, and load cell is provided on fixation steel plate；Left load slot one end is fixed on the fixation steel plate of side, and the other end is made of outer cylinder and inner cylinder, and hydraulic jack is fixed on inside inner cylinder, and accommodating chamber is formed between outer tube inner wall and inner tank theca；Right load slot one end is fixed on the fixation steel plate of the other side, and the other end is open-topped cylinder, and the barrel of cylinder is connected in accommodating chamber, and displacement sensor is fixed on right load trench bottom；Hydraulic jack is connect by hydraulic tube with hydraulic pump, and the hydraulic pump, load cell and displacement sensor are connect with control panel signal.
Description
Technical field
The utility model relates to building foundation pit supporting equipment technical fields, and in particular to a kind of precisely to adjust foundation pit steel support
The device of brace pre axial force.
Background technique
In Excavation Process, the supporting construction in foundation pit plays an important role the stability for keeping foundation pit.It passes
The foundation pit supporting construction of system uses reinforced concrete structure, and this structure is slow with speed of application, curing time is long and the later period needs
The disadvantages of removing unfavorable energy conservation and environmental protection.In contrast, the steel support structure occurred in recent years generally has easy for construction, fast
Degree is fast, the advantages that can applying prestressing force, is reusable, meets the idea of development of national energy-saving environmental protection.
Existing foundation pit assembled steel support construction also has certain problem, for example Horizontal steelwork bracing structure is opened in foundation pit
During digging, steel support structure can lead to its Horizontal steelwork bracing structure axial direction Length Contraction due to assembly installation question before,
And then its support construction is influenced to fender post horizontal axis support force deficiency, cause instability of foundation pit to deform；Or in excavation of foundation pit
In the process, with the increase of cutting depth, upper one layer of horizontal supporting force needs to increase to preset horizontally-supported axle power, therefore must
Horizontal steelwork bracing structure must be adjusted.
Horizontal steelwork bracing structure is adjusted in foundation pit assembled inner support system at present, changes the common side of horizontally-supported axle power
Method is to be pressurizeed in the linking beam position of Horizontal steelwork bracing by jack, and pushing tow Horizontal steelwork bracing structure simultaneously forms gap, then
It is put into cushion block or steel plate in interstitial site, increases the axial length of Horizontal steelwork bracing, increases Horizontal steelwork bracing axle power to reach
With the purpose of stable support structure.But it is wanted using this method first is that not can guarantee the horizontally-supported axle power after adjusting and meet design
It asks；Second is that every time to horizontally-supported adjusting pushing tow during, pushing tow distance is influenced by cushion block and steel plate plate thickness is put into, to making
It adjusts work at the pushing tow of horizontal support structure to be repeatedly carried out continuously, construction efficiency is not high, it is also possible to lead to horizontal support structure
It is improper to adjust, and horizontally-supported axle power is excessive, and the force part of supporting pile structure is excessive and impaired because of axle power, and then influences whole
The stability of a foundation pit supporting construction.The prior art lacks that a kind of constructing operation is simple, can carry out according to design requirement to axle power
It can be to the device that axle power is effectively kept after accurate adjusting and adjusting.
Utility model content
The purpose of this utility model is to provide a kind of devices for precisely adjusting foundation pit steel support brace pre axial force, solve existing
Regulating device construction efficiency is low, can not precisely be adjusted to brace pre axial force and effectively stable problem.
In order to solve the above technical problems, the utility model uses following technical scheme: it is pre- precisely to adjust foundation pit steel support
Add the device of axle power, it is characterised in that: including fixation steel plate, left load slot, right load slot, hydraulic jack, hydraulic pump, dynamometry
Sensor, displacement sensor and control panel；The fixation steel plate is provided with two pieces and is fixed by bolts in two sides respectively
On linking beam, load cell is provided on fixation steel plate；Described left load slot one end is fixed on the fixation steel plate of side, separately
One end is made of outer cylinder and inner cylinder, and hydraulic jack is fixed on inside inner cylinder, is formed and is accommodated between outer tube inner wall and inner tank theca
Chamber；Described right load slot one end is fixed on the fixation steel plate of the other side, and the other end is open-topped cylinder, the barrel of cylinder
It is connected in accommodating chamber, displacement sensor is fixed on right load trench bottom；The hydraulic jack passes through hydraulic tube and hydraulic pump
Connection, the hydraulic pump, load cell and displacement sensor are connect with control panel signal.
Further technical solution is to concave to form the first groove in the cylinder madial wall, clamping in the first groove
There is the first rubber ring, the first rubber ring internal diameter and inner cylinder outer diameter are adapted.
Further technical solution is to concave to form the second groove in the outer medial wall of the tube, clamping in the first groove
There is the second rubber ring, the second rubber ring internal diameter and cylinder external diameter are adapted.
Further technical solution is that auxiliary locator is additionally provided between the fixation steel plate, the auxiliary positioning
Device is made of fixed column, connecting sleeve and fixing bolt, and fixed column is fixed on the fixation steel plate of side, and fixing bolt is fixed
In on the fixation steel plate of the other side, connecting sleeve one end is threadingly attached on fixing bolt, and the other end is pressed in fixed column
On.
Further technical solution is that the auxiliary locator quantity is 4 sets, is located at four of fixation steel plate
On angle.
Further technical solution is to be provided with handle on the connecting sleeve lateral wall.
Working principle: the device assembled is fixed between two linking beams, sets the axis that need to apply by control panel
Force value starts regulating device, and hydraulic jack is withstood under hydraulic pump effect, presses fixation steel plate, steel plate is made to generate relative displacement, when
When axle power suffered by load cell feedback fixation steel plate reaches setting value, hydraulic jack stopping movement, while adjusting connector sleeve
Pipe makes cannula tip press in fixed column.
Compared with prior art, the utility model has the beneficial effects that provide a kind of structure be simple and convenient to operate it is accurate
The device for adjusting foundation pit steel support brace pre axial force is realized by control panel, hydraulic jack and load cell and is connected to two sides
The accurate automatic adjustment of brace pre axial force, effectively improves construction efficiency between binder；It is very heavy by the effective fixed hydraulic of left load slot
Top, at the same it is right load groove drum body it is left load slot outer cylinder and inner cylinder formed accommodating chamber in move, effectively limitation hydraulic jack,
The motion profile of fixation steel plate avoids that fixation steel plate is caused to generate relative displacement in the front-back direction because local pressure is excessive, causes
Hydraulic jack damage.
Detailed description of the invention
Fig. 1 is the device assembling schematic diagram that the utility model precisely adjusts foundation pit steel support brace pre axial force.
Fig. 2 is the position A enlarged drawing in Fig. 1.
In figure: 1- fixation steel plate, the left load slot of 2-, the right load slot of 3-, 4- hydraulic jack, 5- hydraulic pump, 6- dynamometry pass
Sensor, 7- control panel, 8- linking beam, the second rubber ring of 9-, the first rubber ring of 10-, 31- cylinder, the first groove of 32-, outside 21-
Cylinder, 22- inner cylinder, 23- accommodating chamber, the second groove of 24-, 101- fixed column, 102- connecting sleeve, 103- fixing bolt, 104- hand
Handle.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, precisely adjust foundation pit steel support brace pre axial force device, it is characterised in that: including fixation steel plate 1,
Left load slot 2, right load slot 3, hydraulic jack 4, hydraulic pump 5, load cell 6, displacement sensor and control panel 7；Institute
It states fixation steel plate 1 to be provided with two pieces and be fixed by bolts in respectively on the linking beam 8 of two sides, survey is provided on fixation steel plate 1
Force snesor 6；Described left load 2 one end of slot is fixed on the fixation steel plate 1 of side, and the other end is by 22 structure of outer cylinder 21 and inner cylinder
At hydraulic jack 4 is fixed on inside inner cylinder 22, forms accommodating chamber 23 between 22 outer wall of 21 inner wall of outer cylinder and inner cylinder；The right side
Load 3 one end of slot is fixed on the fixation steel plate 1 of the other side, and the other end is open-topped cylinder 31, the barrel card of cylinder 31
It is connected in accommodating chamber 23, displacement sensor is fixed on right 3 bottom of load slot；The hydraulic jack 4 by hydraulic tube with it is hydraulic
5 connection of pump, the hydraulic pump 5, load cell 6 and displacement sensor are connect with 7 signal of control panel.The control panel 7
Inside it is provided with displacement acquisition module, stress acquisition module, timer and alarm generator.
The device assembled is fixed between two linking beams 8, the axle power value that need to apply is set by control panel 7, is opened
Dynamic regulating device, hydraulic jack 4 press fixation steel plate 1 under the effect of hydraulic pump 5, generate fixation steel plate 1 on left and right directions
Relative displacement, when axle power suffered by load cell 6 feeds back fixation steel plate 1 reaches setting value, hydraulic jack 4 stops dynamic
Make, displacement sensor is by the shift value occurred around here by the way that on displacement acquisition module feedback to control panel 7, timer starts to count
When, within a certain period of time, the shift value that the stress value of stress acquisition module acquisition is acquired with displacement acquisition module does not change
Or the variation occurred within an acceptable range when, alarm generator, which issues, adjusts prompt tone in place, and adjustment process terminates.It is synchronous
Ground, the brace pre axial force of 7 real-time monitoring steel supporting system of control panel, taken at regular intervals stress value and shift value, when beyond acceptable
When range, alarm generator is sounded an alarm, and staff is reminded to carry out unloading adjustment to foundation pit steel support system.
It is realized by control panel 7, hydraulic jack 4 and load cell 6 to brace pre axial force between the linking beam of two sides
Precisely automatic adjustment, effectively improves construction efficiency；By the effective fixed hydraulic jack 4 of left load slot 2, while right load slot 3
Cylinder moves in the accommodating chamber that left load slot outer cylinder and inner cylinder are formed, and effectively limits the movement of hydraulic jack, fixation steel plate
Track avoids that fixation steel plate is caused to generate relative displacement in the front-back direction because local pressure is excessive, hydraulic jack is caused to be damaged.
Embodiment 2
To advanced optimize the technical solution in embodiment 1, inside spill on the inner sidewall of cylinder 31 described in the present embodiment
At the first groove 32, the first rubber ring 10 is connected in the first groove 32,10 internal diameter of the first rubber ring is mutually fitted with 22 outer diameter of inner cylinder
It answers.As shown in Fig. 2, the first rubber ring 10 is connected between cylinder 31 and inner cylinder 22, the motion profile of cylinder 31 is effectively limited, is kept away
Exempt to generate radial displacement, while cylinder 31 being avoided directly to contact with inner cylinder 22, generates abrasion.
Embodiment 3
To advanced optimize the technical solution in embodiment 2, inside spill on the inner sidewall of outer cylinder 21 described in the present embodiment
At the second groove 24, the second rubber ring 9 is connected in the second groove 24,9 internal diameter of the second rubber ring and 31 outer diameter of cylinder are adapted.
Second rubber ring 9 is connected between cylinder 31 and outer cylinder 21, is further limited the motion profile of cylinder 31, is avoided generating radial position
It moves, while cylinder 31 being avoided directly to contact with outer cylinder 21, generate abrasion.
Embodiment 4
To advanced optimize the technical solution in embodiment 1, it is additionally provided between fixation steel plate 1 described in the present embodiment auxiliary
Positioning device is helped, the auxiliary locator is made of fixed column 101, connecting sleeve 102 and fixing bolt 103, fixed column 101
It is fixed on the fixation steel plate 1 of side, fixing bolt 103 is fixed on the fixation steel plate 1 of the other side, 102 one end of connecting sleeve
It is threadingly attached on fixing bolt 103, the other end is pressed in fixed column 101.After 4 stop motion of hydraulic jack,
Connecting sleeve 102 is adjusted, is allowed to generate relative displacement between fixing bolt 103, makes its press in the free end of fixed column 101
On, auxiliary locator is formed, the brace pre axial force applied is effectively stablized, especially when hydraulic jack 4 fails, can effectively be propped up
Support avoids foundation pit steel support system from failing, and safety accident occurs.It presses for convenience simultaneously, increases press forced area, connection
102 end face of casing is welded with steel plate.
Embodiment 5
To advanced optimize the technical solution in embodiment 4, auxiliary locator quantity described in the present embodiment is 4 sets,
It is located on four angles of fixation steel plate 1, further effectively stablizes the brace pre axial force applied.
Embodiment 6
To advanced optimize the technical solution in embodiment 4, it is arranged on the lateral wall of connecting sleeve 102 described in the present embodiment
There is handle 104, the adjusting to connecting sleeve 102 is realized by handle 104, makes easy to adjust quick.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (6)
1. precisely adjusting the device of foundation pit steel support brace pre axial force, it is characterised in that: including fixation steel plate (1), left load slot
(2), right load slot (3), hydraulic jack (4), hydraulic pump (5), load cell (6), displacement sensor and control panel
(7)；The fixation steel plate (1) is provided with two pieces and is fixed by bolts on the linking beam (8) of two sides respectively, fixation steel plate
(1) load cell (6) are provided on；Described left load slot (2) one end is fixed on the fixation steel plate (1) of side, the other end
It is made of outer cylinder (21) and inner cylinder (22), hydraulic jack (4) is fixed on inner cylinder (22) inside, outer cylinder (21) inner wall and inner cylinder
(22) accommodating chamber (23) are formed between outer wall；Described right load slot (3) one end is fixed on the fixation steel plate (1) of the other side, separately
One end is open-topped cylinder (31), and the barrel of cylinder (31) is connected in accommodating chamber (23), and displacement sensor is fixed on the right side
Load slot (3) bottom；The hydraulic jack (4) is connect by hydraulic tube with hydraulic pump (5), and the hydraulic pump (5), dynamometry pass
Sensor (6) and displacement sensor are connect with control panel (7) signal.
2. the accurate device for adjusting foundation pit steel support brace pre axial force according to claim 1, it is characterised in that: the cylinder
(31) it concaves to be formed the first groove (32) on inner sidewall, is connected with the first rubber ring (10), the first rubber in the first groove (32)
Cushion rubber (10) internal diameter and inner cylinder (22) outer diameter are adapted.
3. the accurate device for adjusting foundation pit steel support brace pre axial force according to claim 2, it is characterised in that: the outer cylinder
(21) it concaves to be formed the second groove (24) on inner sidewall, is connected with the second rubber ring (9), the second rubber in the second groove (24)
It encloses (9) internal diameter and cylinder (31) outer diameter is adapted.
4. the accurate device for adjusting foundation pit steel support brace pre axial force according to claim 1, it is characterised in that: the fixation
Be additionally provided with auxiliary locator between steel plate (1), the auxiliary locator by fixed column (101), connecting sleeve (102) and
Fixing bolt (103) is constituted, and fixed column (101) is fixed on the fixation steel plate (1) of side, and fixing bolt (103) is fixed on separately
On the fixation steel plate (1) of side, connecting sleeve (102) one end is threadingly attached on fixing bolt (103), other end press
In on fixed column (101).
5. the accurate device for adjusting foundation pit steel support brace pre axial force according to claim 4, it is characterised in that: the auxiliary
Positioning device quantity is 4 sets, is located on four angles of fixation steel plate (1).
6. the accurate device for adjusting foundation pit steel support brace pre axial force according to claim 4, it is characterised in that: the connection
Handle (104) are provided on casing (102) lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821011823.4U CN208501697U (en) | 2018-06-28 | 2018-06-28 | Precisely adjust the device of foundation pit steel support brace pre axial force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821011823.4U CN208501697U (en) | 2018-06-28 | 2018-06-28 | Precisely adjust the device of foundation pit steel support brace pre axial force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208501697U true CN208501697U (en) | 2019-02-15 |
Family
ID=65281426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821011823.4U Expired - Fee Related CN208501697U (en) | 2018-06-28 | 2018-06-28 | Precisely adjust the device of foundation pit steel support brace pre axial force |
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| Country | Link |
|---|---|
| CN (1) | CN208501697U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824443A (en) * | 2018-06-28 | 2018-11-16 | 云南建投基础工程有限责任公司 | Precisely adjust the device and its loading method of foundation pit steel support brace pre axial force |
| CN110777810A (en) * | 2019-11-19 | 2020-02-11 | 中国三冶集团有限公司 | Foundation pit bored pile steel bearing structure |
| CN111851153A (en) * | 2019-04-28 | 2020-10-30 | 北京华铁时代建设发展有限公司 | Supporting device and using method thereof |
-
2018
- 2018-06-28 CN CN201821011823.4U patent/CN208501697U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824443A (en) * | 2018-06-28 | 2018-11-16 | 云南建投基础工程有限责任公司 | Precisely adjust the device and its loading method of foundation pit steel support brace pre axial force |
| CN108824443B (en) * | 2018-06-28 | 2020-05-19 | 云南建投基础工程有限责任公司 | Device for accurately adjusting pre-axial force of foundation pit steel support and loading method thereof |
| CN111851153A (en) * | 2019-04-28 | 2020-10-30 | 北京华铁时代建设发展有限公司 | Supporting device and using method thereof |
| CN110777810A (en) * | 2019-11-19 | 2020-02-11 | 中国三冶集团有限公司 | Foundation pit bored pile steel bearing structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 Termination date: 20210628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |