CN115110546A - Independent large-span deep foundation pit prestressed steel supporting system - Google Patents
Independent large-span deep foundation pit prestressed steel supporting system Download PDFInfo
- Publication number
- CN115110546A CN115110546A CN202210936982.XA CN202210936982A CN115110546A CN 115110546 A CN115110546 A CN 115110546A CN 202210936982 A CN202210936982 A CN 202210936982A CN 115110546 A CN115110546 A CN 115110546A
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- frame
- positioning
- base
- inner bin
- linkage
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 239000000428 dust Substances 0.000 claims abstract description 44
- 238000000746 purification Methods 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention relates to the field of foundation pit support, and particularly discloses an independent large-span deep foundation pit prestressed steel supporting system, which comprises: a base shaft; the dust removal and purification device is fixedly connected with the top of the base rod; an inner layer positioning device; a boost drive; a first connection assembly; a second connection assembly; wherein, the inlayer positioner includes: the linkage adjusting device is connected with the pressurization driving device; consolidate the subassembly, consolidate the subassembly and link to each other with linkage adjusting device, this device dust purification device when carrying out outside raise dust purification filtration, cooperation pressure boost drive arrangement accomplishes inlayer positioner's pneumatic drive, and inside linkage adjusting device cooperates with the reinforcement subassembly, has further improved the cartridge stability on base bar and soil layer, prevents that the fixed back of base bar from subsiding, and simultaneously, the first connecting elements and the cooperation of second coupling assembling of outside setting can accomplish the near point and the large-span connection location of a plurality of base bar units.
Description
Technical Field
The invention relates to the foundation pit supporting industry, in particular to an independent large-span deep foundation pit prestress steel supporting system.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed. The persons who do not dig deeply can use the method of putting side slope to stabilize the soil slope, and the size of the slope is determined according to the relevant construction regulations.
When carrying out large-span excavation supporting at present, adopt simple and easy steel structure spare to carry out joint support at present, steel structure spare easily causes and subsides, and stability is relatively poor, consequently, for solving this problem, need to develop an independent type large-span deep basal pit prestressing steel braced system urgently.
Disclosure of Invention
The invention aims to provide an independent large-span deep foundation pit prestressed steel supporting system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an independent type large-span deep foundation ditch prestressing force steel braced system, includes:
a base shaft;
the dust removal and purification device is fixedly connected with the top of the base rod and is used for purifying and collecting construction flying dust;
the inner layer positioning device is connected with the inside of the base rod;
one end of the pressurizing driving device is connected with the dust removal and purification device, and the other end of the pressurizing driving device is connected with the inner layer positioning device and used for completing pressurizing driving of the inner layer positioning device in cooperation with the dust removal and purification device;
the first connecting assembly is fixedly connected with the base rods and used for connecting and positioning adjacent base rods;
the second connecting assembly is connected with the dust removal and purification device and is used for large-span connection and positioning between the base rods;
wherein, the inlayer positioner includes:
the linkage adjusting device is connected with the pressurization driving device;
and the reinforcing component is connected with the linkage adjusting device and is used for matching with the linkage adjusting device to finish the reinforcing and embedding fixing between the base rod and the soil layer.
Compared with the prior art, the invention has the beneficial effects that: this device reasonable in design, dust purification device is when carrying out outside raise dust purification filtration, cooperation pressure boost drive arrangement, accomplish inner positioner's pneumatic drive, inside linkage adjusting device and reinforcement assembly cooperation, the cartridge stability of base pole and soil layer has further been improved, prevent that the base pole from subsiding after fixed, and simultaneously, the first coupling assembling and the cooperation of second coupling assembling of outside setting, can accomplish near some and the large-span connection location of a plurality of base pole units, the not enough of having improved current device, higher practicality and market prospect have, be fit for using widely on a large scale.
Drawings
Fig. 1 is a schematic view of an internal structure of an independent large-span deep foundation pit prestressed steel supporting system in an embodiment of the present invention.
Fig. 2 is an external structure schematic diagram in an independent large-span deep foundation pit prestressed steel supporting system in the embodiment of the invention.
Fig. 3 is a partial structural diagram of a portion a in fig. 1.
Fig. 4 is a schematic structural diagram of a first connection assembly in an independent large-span deep foundation pit prestressed steel supporting system in an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a fan-shaped frame in an independent large-span deep foundation pit prestressed steel supporting system in the embodiment of the invention.
Fig. 6 is a schematic structural diagram of a second fixing frame in an independent large-span deep foundation pit prestressed steel supporting system in an embodiment of the present invention.
In the figure: 1-base rod, 2-dust removing and purifying device, 3-pressurizing driving device, 4-inner layer positioning device, 5-linkage adjusting device, 6-reinforcing component, 7-first connecting component, 8-second connecting component, 201-top frame, 202-driving component, 203-dust collecting bin, 204-first filter element, 301-first inner bin, 302-control component, 303-second filter element, 304-air duct, 305-second inner bin, 306-driving frame, 307-elastic component, 501-first fixing frame, 502-first linkage frame, 503-limiting frame, 504-sleeve frame, 601-positioning frame, 602-second linkage frame, 701-fixing groove frame, 702-positioning frame, 703-first inserted rod, 704-first slot, 801-fixed shaft frame, 802-telescopic frame, 803-second inserted bar, 804-second fixed frame, 805-second slot, 806-positioning barrel frame and 807-fan frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment of the present invention, as shown in fig. 1 and 2, a prestressed steel supporting system for a freestanding large-span deep foundation pit includes: a base shaft 1; the dust removal and purification device 2 is fixedly connected with the top of the base rod 1 and used for purifying and collecting construction flying dust; the inner layer positioning device 4 is connected with the inside of the base rod 1; one end of the pressurization driving device 3 is connected with the dust removal and purification device 2, and the other end of the pressurization driving device 3 is connected with the inner layer positioning device 4 and is used for being matched with the dust removal and purification device 2 to complete pressurization driving of the inner layer positioning device 4; the first connecting component 7 is fixedly connected with the base rods 1 and used for connecting and positioning the adjacent base rods 1; the second connecting assembly 8 is connected with the dust removal and purification device 2 and is used for large-span connection and positioning between the base rods 1; wherein the inner layer positioning device 4 comprises: the linkage adjusting device 5 is connected with the pressurization driving device 3; and the reinforcing component 6 is connected with the linkage adjusting device 5 and used for matching the linkage adjusting device 5 to finish the reinforcing and embedding fixing between the base rod 1 and the soil layer.
In one embodiment of the invention:
as shown in fig. 1 and 2, the dust removing and purifying apparatus 2 includes: the top frame 201, the said top frame 201 is fixedly connected with top side of the base pole 1; the driving piece 202, the driving piece 202 is fixedly connected with the outside of the top frame 201; the driving part 202 is an electric negative pressure fan; the dust collection bin 203 penetrates through the top frame 201 and is connected with the driving piece 202; a first filter element 204, wherein the first filter element 204 is arranged inside the dust collection bin 203;
the bottom of the base rod 1 is arranged to be conical, the base rod is hollow inside, the base rods 1 are inserted into the periphery of a foundation pit, raised dust generated during construction around the foundation pit can be sucked into the dust collection bin 203 under the drive of the driving piece 202 through negative pressure, the bottom of the dust collection bin 203 is arranged to be an opening, the dust collection bin 203 is internally filtered through the first filter element 204, gas which is purified is discharged to the outside through the bottom of the dust collection bin 203, and the base rods 1 and the internal dust removal purification device 2 are matched with each other, so that the construction environment quality outside the foundation pit is further improved, and raised dust pollution is reduced.
In one embodiment of the invention:
as shown in fig. 1 and 2, the booster drive device 3 includes: the first inner bin 301 is connected with the inside of the base rod 1, and the top side of the first inner bin 301 penetrates through the first inner bin and is connected with the driving piece 202; a second inner chamber 305, wherein the second inner chamber 305 is connected with the inside of the base rod 1; the control piece 301 is connected with the first inner bin 301, and is used for controlling gas conduction inside the first inner bin 301; the control part 301 is an electromagnetic valve; the second filter element 303, the second filter element 303 is connected with the inside of the first inner bin 301; one end of the air duct 304 is connected with the second filter element 303, and the other end of the air duct 304 penetrates through the first inner bin 301 and is connected with the second inner bin 305; one end of the transmission frame 306 is connected with the inside of the second inner bin 305 in a sliding manner, and the other end of the transmission frame 306 penetrates through the second inner bin 305 to be connected with the linkage adjusting device 5; one end of the elastic member 307 is connected with one end of the transmission frame 306 far away from the linkage adjusting device 5, and the other end of the elastic member 307 is fixedly connected with the inside of the second inner bin 305; the elastic member 307 is a spring;
when the base rod 1 is inserted into the soil layer, the driving member 202 and the control member 302 are opened, part of the gas introduced by the driving member 202 enters the first inner bin 301, the gas is filtered by the second filter element 303, the gas is introduced into the second inner bin 305 through the gas guide pipe 304, the pressure in the second inner bin 305 rises, the driving frame 306 is driven to move downwards and jack, so that the linkage adjusting device 5 and the reinforcing component 6 are driven to operate, the pressure sensor is also electrically installed in the second inner bin 305, the elastic member 307 is connected with the pressure sensor (not shown in the figure), when the elastic member 307 contracts to a certain value, the control member 302 is closed, the pressure in the second inner bin 305 is constant, the pressurization positioning of the linkage adjusting device 5 and the reinforcing component 6 is completed, when the linkage adjusting device 5 and the reinforcing component 6 need to reset, the control member 302 is closed, the driving member 202 is closed, and the gas is discharged to the outside through the top side driving member 202, the linkage adjusting device 5 and the reinforcing device 6 complete reset under the cooperation of the elastic piece 307;
in this application, the control member 302 is not limited to a solenoid valve, and may also be driven by a linear motor, an electric cylinder or an air cylinder, etc., as long as the pneumatic conduction control of the first inner chamber 301 can be realized, and is not particularly limited herein.
In one embodiment of the invention:
as shown in fig. 1 to 3, the linkage adjusting device 5 includes: the first fixing frames 501 are fixedly connected with the inside of the base rod 1 of each first fixing frame 501; one end of the first linkage frame 502 is connected with the plurality of first fixing frames 501 in a penetrating manner, and the other end of the first linkage frame 502 is connected with the transmission frame 306 in a penetrating manner through the second inner bin 305 and is connected with the first fixing frames 501 in a penetrating and sliding manner; the limiting frame 503 is fixedly connected with the inside of the base rod 1; the sleeve frame 504 is sleeved outside the first linkage frame 502;
when the transmission frame 406 moves downwards, the first linkage frame 502 and the sleeve frame 504 are driven to synchronously move downwards in the base rod 1, the sleeve frame 504 moving downwards can drive the external reinforcing component 6 to move outwards, and when the sleeve frame 504 moves downwards to abut against the limiting frame 503, the reinforcing component 6 moves upwards to the maximum extension distance.
In one embodiment of the invention:
as shown in fig. 1 to 3, the reinforcing member 6 includes: one end of each positioning frame 601 is movably connected with the first fixing frame 501, and the other end of each positioning frame 601 is connected with the base rod 1 in a penetrating manner; one end of the second linkage frame 602 is movably connected with the sleeve frame, and the other end of the second linkage frame 602 is movably connected with the positioning frame 601;
when the sleeve frame 504 moves down, the second linkage frames 602 which drive the external movable connections move down, so as to push the external positioning frames 601 to move outwards, the external part of the base rod 1 is provided with a slot, and the positioning frames 601 penetrate through the slot and are inserted into the soil layer outside the base rod 1, thereby further improving the fixing stability of the base rod 1.
In one embodiment of the invention:
as shown in fig. 1 and 4, the first connection assembly 7 includes: the fixed slot frames 701 are fixedly connected with the base rod 1; the positioning frame 702 is rotationally connected with the fixed groove frame 701; the first slot 704 is arranged inside one end of the positioning frame 702 far away from the fixed slot frame 701; the first inserted bar 703 is connected with one end of the positioning frame 702 far away from the fixed slot frame 701;
when the base rods 1 on two sides are inserted, the positioning frames 702 on two sides are rotated according to the insertion positions of the two base rods 1, so that the first insertion rod 703 on one side is inserted into the first insertion groove 704 to complete connection and limiting of the base rods 1 on two adjacent sides, and the length of the positioning frame 702 can be rotated according to actual conditions.
In one embodiment of the invention:
as shown in fig. 1, 5 and 6, the second connecting assembly 8 includes: the fixed shaft bracket 801 is rotatably connected with the top frame 201; the telescopic frame 802 is rotatably connected with the fixed shaft frame 801; a second insertion rod 803, wherein the second insertion rod 803 is connected with one end of the telescopic frame 802 away from the fixed shaft frame 801; the second fixing frame 804 is fixedly connected with the top frame 201; a second slot 805, wherein the second slot 805 is arranged inside the second fixing frame 804; one side of the fan-shaped frame 807 is fixedly connected with the fixed shaft frame 801, and the other side of the fan-shaped frame 807 is in sliding penetrating connection with the second fixed frame 804; the positioning barrel frame 807 is rotatably connected with the inside of the second fixing frame 804;
after the base rod 1 is connected and positioned through the first connecting component 7, the positions of the telescopic frame 802 and the positioning barrel frame 807 are adjusted by rotating according to the fixed position of the base rod 1, the second inserted rod 803 of the base rod 1 on one side is inserted into the positioning barrel frame 807 of the base rod 1 on the other side, the telescopic frame 802 can be selected in length according to actual conditions, so that large-span connection among a plurality of base rods 1 is completed, a plurality of holes matched with the second inserted grooves 805 are formed in the fan-shaped frame 807, and after the angle adjustment of the telescopic frame 802 is completed, a metal rod body (not shown in the figure) is inserted into the second inserted groove 805 and penetrates through the second inserted grooves 805 and the holes in the fan-shaped frame 807, so that the fixed shaft frame 801 and the telescopic frame 802 are inserted and fixed.
The working principle of the invention is as follows: an iron sheet plate can be arranged between adjacent base rods 1 for protection, a plurality of base rods 1 are connected to form a supporting system, the bottom of each base rod 1 is arranged to be conical, the inside of each base rod is hollow, a plurality of base rods 1 are inserted into the periphery of a foundation pit, raised dust generated in construction around the foundation pit can be sucked into a dust collection bin 203 under the driving of a driving piece 202, the bottom of the dust collection bin 203 is arranged to be open, the inside of the dust collection bin 203 is filtered through a first filter element 204, purified gas is discharged to the outside through the bottom of the dust collection bin 203, the base rods 1 and an internal dust removal and purification device 2 thereof are matched, the construction environment quality outside the foundation pit is further improved, the raised dust pollution is reduced, after the base rods 1 are inserted into a soil layer, the driving piece 202 and a control piece 302 are opened, part of the gas led in by the driving piece 202 enters the inside of a first inner bin 301 and is filtered by a second filter element 303, the gas is guided into the second inner bin 305 through the gas guide pipe 304, the pressure in the second inner bin 305 rises, the driving frame 306 is driven to move downwards and upwards, so as to drive the linkage adjusting device 5 and the reinforcing component 6 to operate, the pressure sensor is also electrically installed in the second inner bin 305, the elastic piece 307 is connected with the pressure sensor (not shown in the figure), when the elastic piece 307 contracts to a certain value, the control piece 302 is closed, the pressure in the second inner bin 305 is constant, the pressurization positioning of the linkage adjusting device 5 and the reinforcing component 6 is completed, when the linkage adjusting device 5 and the reinforcing component 6 need to reset, the control piece 302 is closed, the driving piece 202 is closed, the gas is discharged to the outside through the top side driving piece 202, under the cooperation of the elastic piece 307, the linkage adjusting device 5 and the reinforcing component 6 complete the resetting, when the driving frame 406 moves downwards, the first linkage frame 502 and the sleeve frame 504 are driven to synchronously move downwards in the base rod 1, the downward moving sleeve frame 504 can drive the external reinforcing component 6 to move outwards, when the sleeve frame 504 moves downwards to be abutted against the limiting frame 503, the reinforcing component 6 moves upwards to the maximum extension distance, when the sleeve frame 504 moves downwards, a plurality of second connecting frames 602 which are movably connected outside are driven to move downwards, so that the external positioning frames 601 are pushed to move outwards, the outside of the base rod 1 is provided with a slot, the plurality of positioning frames 601 penetrate through the slot and are inserted into the soil layer outside the base rod 1, and the fixing stability of the base rod 1 is further improved;
when two side base rods 1 are inserted, the two side positioning frames 702 are rotated according to the inserting positions of the two base rods 1, so that the first inserting rod 703 at one side is inserted into the first slot 704 to complete the connection and the limit of the adjacent two side base rods 1, the length of the positioning frame 702 can be rotated according to the actual situation, after the base rods 1 are connected and positioned through the first connecting component 7, the positions of the telescopic frame 802 and the positioning barrel frame 807 are adjusted by rotating according to the fixed position of the base rods 1, the second inserting rod 803 of one side base rod 1 is inserted into the positioning barrel frame 807 of the other side base rod 1, the length of the telescopic frame 802 can be selected according to the actual situation, so as to complete the large-span connection among a plurality of base rods 1, a plurality of holes matched with the second slot 805 are arranged in the fan-shaped frame 807, and after the angle adjustment of the telescopic frame 802 is completed, a metal rod body (not shown in the figure) is inserted into the second slot 805, the fixing shaft bracket 801 and the telescopic bracket 802 are inserted and fixed through the second slot 805 and the inner hole of the fan-shaped bracket 807.
To sum up, this device dust purification device 2 is when carrying out outside raise dust purification filtration, cooperation pressure boost drive arrangement 3, accomplish the pneumatic drive of inlayer positioner 4, inside linkage adjusting device 5 cooperates with reinforcement component 6, the cartridge stability of base rod 1 with the soil layer has further been improved, prevent that base rod 1 from subsiding after fixed, simultaneously, the first coupling assembling 7 and the cooperation of second coupling assembling 8 of outside setting, can accomplish the nearly point and the large-span connection location of a plurality of base rod 1 units.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides an independent type large-span deep foundation ditch prestressing force steel braced system which characterized in that includes:
a base shaft;
the dust removal and purification device is fixedly connected with the top of the base rod and is used for purifying and collecting construction flying dust;
the inner layer positioning device is connected with the inside of the base rod;
one end of the pressurizing driving device is connected with the dust removal and purification device, and the other end of the pressurizing driving device is connected with the inner layer positioning device and used for completing pressurizing driving of the inner layer positioning device in cooperation with the dust removal and purification device;
the first connecting assembly is fixedly connected with the base rods and used for connecting and positioning adjacent base rods;
the second connecting assembly is connected with the dust removal and purification device and is used for large-span connection and positioning between the base rods;
wherein, the inlayer positioner includes:
the linkage adjusting device is connected with the pressurization driving device;
and the reinforcing component is connected with the linkage adjusting device and is used for matching with the linkage adjusting device to finish the reinforcing and embedding fixing between the base rod and the soil layer.
2. The prestressed steel supporting system for the independent large-span deep foundation pit according to claim 1, wherein the dust removal and purification device comprises:
the top frame is fixedly connected with the top side of the base rod;
the driving piece is fixedly connected with the outside of the top frame;
the dust collection bin penetrates through the top frame and is connected with the driving piece;
the first filter element is arranged inside the dust collection bin.
3. The prestressed steel supporting system for the independent large-span deep foundation pit according to claim 2, wherein the pressurization driving device comprises:
the first inner bin is connected with the inside of the base rod, and the top side of the first inner bin penetrates through the first inner bin and is connected with the driving piece;
the second inner bin is connected with the inside of the base rod;
the control piece is connected with the first inner bin and is used for controlling gas conduction inside the first inner bin;
the second filter element is connected with the inside of the first inner bin;
one end of the air duct is connected with the second filter element, and the other end of the air duct penetrates through the first inner bin and is connected with the second inner bin;
one end of the transmission frame is connected with the inside of the second inner bin in a sliding mode, and the other end of the transmission frame penetrates through the second inner bin and is connected with the linkage adjusting device;
and one end of the elastic piece is connected with one end of the transmission frame, which is far away from the linkage adjusting device, and the other end of the elastic piece is fixedly connected with the inside of the second inner bin.
4. The prestressed steel supporting system for independent large-span deep foundation pits according to claim 3, wherein the linkage adjusting device comprises:
the first fixing frames are fixedly connected with the inside of the base rod of each first fixing frame;
one end of the first linkage frame is connected with the plurality of first fixing frames in a penetrating mode, and the other end of the first linkage frame penetrates through the second inner bin to be connected with the transmission frame and is connected with the first fixing frames in a penetrating and sliding mode;
the limiting frame is fixedly connected with the inside of the base rod;
the sleeve frame is sleeved outside the first linkage frame.
5. The freestanding large-span deep foundation pit prestressed steel support system of claim 4, wherein the reinforcement assembly comprises:
one end of the positioning frame is movably connected with the first fixing frame, and the other end of the positioning frame is in penetrating connection with the base rod;
and one end of the second linkage frame is movably connected with the sleeve frame, and the other end of the second linkage frame is movably connected with the positioning frame.
6. The freestanding large-span deep foundation pit prestressed steel support system of claim 1, wherein the first connection assembly comprises:
the fixed slot frames are fixedly connected with the base rod;
the positioning frame is rotationally connected with the fixed groove frame;
the first slot is arranged inside one end, far away from the fixed slot frame, of the positioning frame;
and the first inserted bar is connected with one end, far away from the fixed groove frame, of the positioning frame.
7. The freestanding large-span deep foundation pit prestressed steel support system of claim 2, wherein the second connection assembly comprises:
the fixed shaft bracket is rotationally connected with the top bracket;
the telescopic frame is rotationally connected with the fixed shaft frame;
the second inserted bar is connected with one end of the telescopic frame, which is far away from the fixed shaft frame;
the second fixing frame is fixedly connected with the top frame;
the second slot is arranged in the second fixing frame;
one side of the fan-shaped frame is fixedly connected with the fixed shaft frame, and the other side of the fan-shaped frame is in sliding penetrating connection with the second fixed frame;
and the positioning barrel frame is rotatably connected with the inside of the second fixing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210936982.XA CN115110546A (en) | 2022-08-05 | 2022-08-05 | Independent large-span deep foundation pit prestressed steel supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210936982.XA CN115110546A (en) | 2022-08-05 | 2022-08-05 | Independent large-span deep foundation pit prestressed steel supporting system |
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| CN115110546A true CN115110546A (en) | 2022-09-27 |
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| CN202210936982.XA Pending CN115110546A (en) | 2022-08-05 | 2022-08-05 | Independent large-span deep foundation pit prestressed steel supporting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172994A (en) * | 2019-12-31 | 2020-05-19 | 甘肃建投建设有限公司 | Foundation pit supporting structure based on high-pressure jet grouting pile |
| CN212958448U (en) * | 2020-08-19 | 2021-04-13 | 北京中铁诚业工程建设监理有限公司 | Underground construction tunneling device with dust removing equipment |
| CN113089682A (en) * | 2021-03-18 | 2021-07-09 | 兰州大学 | High-strength tubular pile foundation pit supporting structure for geotechnical engineering |
| CN114670069A (en) * | 2022-04-07 | 2022-06-28 | 深圳市合发齿轮机械有限公司 | Gear terminal surface grinds flat burnishing device |
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2022
- 2022-08-05 CN CN202210936982.XA patent/CN115110546A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172994A (en) * | 2019-12-31 | 2020-05-19 | 甘肃建投建设有限公司 | Foundation pit supporting structure based on high-pressure jet grouting pile |
| CN212958448U (en) * | 2020-08-19 | 2021-04-13 | 北京中铁诚业工程建设监理有限公司 | Underground construction tunneling device with dust removing equipment |
| CN113089682A (en) * | 2021-03-18 | 2021-07-09 | 兰州大学 | High-strength tubular pile foundation pit supporting structure for geotechnical engineering |
| CN114670069A (en) * | 2022-04-07 | 2022-06-28 | 深圳市合发齿轮机械有限公司 | Gear terminal surface grinds flat burnishing device |
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