CN110387899B - Pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation - Google Patents
Pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation Download PDFInfo
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- CN110387899B CN110387899B CN201910695843.0A CN201910695843A CN110387899B CN 110387899 B CN110387899 B CN 110387899B CN 201910695843 A CN201910695843 A CN 201910695843A CN 110387899 B CN110387899 B CN 110387899B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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Abstract
The invention discloses a device for fixing embedded sections of a large tower crane foundation of a soft soil foundation, which comprises a cast-in-place pile, a cushion layer, a reinforcing mesh, a cushion plate, a cross beam, a support, a foundation embedded section, a standard section and a protection device, wherein the cushion layer is arranged at the top of the cast-in-place pile, the cushion layer is fixedly connected with the cast-in-place pile, the reinforcing mesh is arranged at the top of the cushion layer, the reinforcing mesh is fixedly connected with the cast-in-place pile and the cushion layer, the cushion plate is arranged at the bottom of the reinforcing mesh, the cross beam is arranged at the top of the cushion layer, the support is fixed at the top of the cross beam, the height of the foundation embedded section is smaller than the height of a bearing platform, the foundation embedded section is generally required to be placed on the support, the bearing capacity of the cushion layer on the soft soil is small, and the tower crane bearing platform pile completely meets, the tower crane foundation embedded section is convenient to stably install, and the installation speed is accelerated.
Description
Technical Field
The invention relates to the technical field of tower cranes, in particular to a fixing device for embedded sections of a large tower crane foundation of a soft soil foundation.
Background
Traditionally, the pre-buried festival of tower crane basis is directly placed on the muscle at the bottom of the cushion cap or on the support, and weight is mainly born by the cushion cap layer, and small-size tower crane standard festival link adopts the screw rod to connect moreover, can also rely on the gasket to finely tune the horizontal deviation who offsets pre-buried festival during the first festival standard of installation, and the pre-buried festival of large-scale tower crane is heavier.
Mostly, the bearing platform bottom is soft soil layer, the bed course bearing capacity of direct atress is not enough, it caves in easily, make pre-buried festival off normal, and the standard festival of large-scale tower crane is the cotter pin connection, the horizontal deviation of pre-buried festival can't be offset in the fine setting again, influence the follow-up installation of tower crane and use, bolt the connection at pre-buried festival and standard festival, the cotter pin is pegged graft, closely cooperate, the tower crane live time is longer, just dismantle after the engineering finishes, and whole engineering is accomplished and is needed one year at least, the cotter pin is tied and is exposed in the air for a long time, air and rainwater are by the erosion that has corrosivity rainwater and air and dust, finally lead to the cotter pin tower crane to rust easily and die the deformation, lead to the tower crane to be difficult to dismantle, therefore.
Disclosure of Invention
The invention aims to provide a fixing device for embedded sections of a large tower crane foundation of a soft soil foundation, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pre-buried festival fixing device of large-scale tower crane foundation of weak soil foundation, includes bored concrete pile, bed course, reinforcing bar net, backing plate, crossbeam, support, the pre-buried festival of ground, standard festival and protection device, the bored concrete pile top is equipped with the bed course, bed course and bored concrete pile fixed connection, the bed course top is equipped with the reinforcing bar net, reinforcing bar net and bored concrete pile and bed course fixed connection, reinforcing bar net bottom is equipped with the backing plate, the bed course top is equipped with the crossbeam, the crossbeam top is fixed with the support, the support top is fixed with the pre-buried festival of ground, the pre-buried festival top of ground is fixed with the standard festival, be equipped with protection device between pre-buried festival of ground and the standard festival, protection device respectively with pre-buried festival of ground and standard festival fixed connection, protection device is equipped with four, and is the rectangle distribution, the.
Preferably, the reinforcing mesh is composed of X-axis reinforcing steel bars, Y-axis reinforcing steel bars and Z-axis reinforcing steel bars, the Y-axis reinforcing steel bars are fixed on one sides of the X-axis reinforcing steel bars, and the tops of the X-axis reinforcing steel bars and the tops of the Y-axis reinforcing steel bars are respectively fixedly connected with the Z-axis reinforcing steel bars.
Preferably, the protection device comprises an outer sealing device, an inner sealing device and a clamping device, the outer sealing device is arranged between the foundation embedded section and the standard section, the inner sealing device is arranged inside the outer sealing device and is in contact with the outer sealing device, and the clamping device is fixed on one side of the outer sealing device.
Preferably, outer sealing device comprises first baffle, second baffle, third baffle, buckle, lug, connecting plate and outer sealed pad, inner sealing device one side is equipped with the third baffle, third baffle one side is equipped with the buckle, the buckle rotates with the third baffle to be connected, third baffle one side is equipped with the second baffle, the second baffle rotates with the third baffle to be connected, second baffle one side is equipped with first baffle, first baffle rotates with the second baffle to be connected, first baffle one side is fixed with the connecting plate, connecting plate one side is fixed with the lug, lug and buckle contact, connecting plate one side is fixed with clamping device, first baffle is fixed with outer sealed pad respectively with second baffle one side.
Preferably, clamping device comprises pressing from both sides tight post, clamp tight shell, threaded rod, handle and slide rail, outer sealing device top is fixed with presss from both sides tight shell, it is equipped with tight post to press from both sides tight shell bottom, press from both sides tight post and press from both sides and be equipped with the slide rail between the tight shell, press from both sides tight post and press from both sides through slide rail sliding connection between the tight shell, press from both sides the inside threaded rod that is equipped with of tight post, the threaded rod runs through and presss from both sides tight shell and press from both sides tight post threaded connection, the threaded rod rotates with pressing from both sides tight.
Preferably, the outer surface of the handle is carved with anti-skid lines.
Preferably, the inner-layer sealing device is composed of an inner-layer sealing gasket, two extrusion blocks and two ejection devices, the extrusion blocks are arranged on one side of the outer-layer sealing device, the ejection devices are arranged between the extrusion blocks and the outer-layer sealing device, the extrusion blocks are fixedly connected with the ejection devices, the ejection devices are in contact with the outer-layer sealing device, and the inner-layer sealing gasket is fixed on two sides of the extrusion blocks.
Preferably, the ejection device is composed of an ejection shell, an ejection spring and an ejection block, the ejection shell is fixed on one side of the extrusion block, the ejection block is arranged in the ejection shell, the ejection spring is arranged between the ejection block and the ejection shell, and two ends of the ejection spring are respectively fixedly connected with the inner wall of the ejection shell and the ejection block.
Compared with the prior art, the invention has the beneficial effects that:
1. the height of the foundation embedded section is smaller than that of the bearing platform, the foundation embedded section is generally required to be placed on the support, the bearing capacity of the cushion layer on the soft soil is small, and the tower crane bearing platform pile completely meets the load, so that the support can be built by placing the section steel beam between pile tops, and then the foundation embedded section is placed on the support, so that the weight of the foundation embedded section is transmitted to the bearing platform pile, the stable installation of the tower crane foundation embedded section is facilitated, and the installation speed is accelerated.
2. The protective device protects the pin bolt at the joint of the standard section and the foundation embedded section, prevents the pin bolt from being rusted, facilitates later-stage disassembly of the tower crane, increases the friction force between the hand and the handle due to the anti-skid lines on the outer surface of the handle, facilitates the use of the clamping device, facilitates the sealing between the inner-layer sealing device and the pin bolt through the ejection device, protects the inner-layer sealing device with better elastic sealing, and prevents the protective device from being damaged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a partial view of the present invention;
FIG. 4 is an enlarged view of area A of FIG. 3;
FIG. 5 is a partial view of the present invention;
fig. 6 is an enlarged view of the region B in fig. 5.
In the figure: 1-filling a pile; 2-cushion layer; 3-reinforcing mesh; 4-a backing plate; 5-a cross beam; 6-a scaffold; 7-foundation embedded joint; 8-standard section; 9-a protection device; 10-X axis rebar; 11-Y axis rebar; 12-Z axis rebar; 13-outer layer sealing means; 14-inner layer sealing means; 15-a clamping device; 16-a first baffle; 17-a second baffle; 18-a third baffle; 19-a buckle plate; 20-a bump; 21-a connecting plate; 22-outer layer sealing gasket; 23-inner layer gasket; 24-an extrusion block; 25-an ejection device; 26-a clamping post; 27-clamping the housing; 28-threaded rod; 29-a handle; 30-a slide rail; 31-ejecting the shell; 32-an ejector spring; 33-top block.
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.
Referring to fig. 1-6, the present invention provides a technical solution: a soft soil foundation large-scale tower crane foundation embedded section fixing device comprises a cast-in-place pile 1, a cushion layer 2, a reinforcing mesh 3, a backing plate 4, a cross beam 5, a support 6, foundation embedded sections 7, standard sections 8 and protection devices 9, wherein the cushion layer 2 is arranged at the top of the cast-in-place pile 1, the cushion layer 2 is fixedly connected with the cast-in-place pile 1, the reinforcing mesh 3 is arranged at the top of the cushion layer 2, the reinforcing mesh 3 is fixedly connected with the cast-in-place pile 1 and the cushion layer 2, the backing plate 4 is arranged at the bottom of the reinforcing mesh 3, the cross beam 5 is arranged at the top of the cushion layer 2, the support 6 is fixed at the top of the cross beam 5, the foundation embedded sections 7 are fixed at the top of the support 6, the standard sections 8 are fixed at the top of the foundation embedded sections 7, the protection devices 9 are arranged between the foundation embedded sections 7 and the standard sections 8, the foundation embedded sections 7 are distributed in a rectangular shape, the tops of the foundation embedded sections 7 are positioned at the top ends of the reinforcing steel bar nets 3, and the height of the foundation embedded sections 7 is smaller than that of the bearing platform and generally needs to be placed on the support 6; cushion layer 2 bearing capacity is little on the weak soil, and the tower crane cushion pile satisfies the load completely, so can place shaped steel roof beam between pile bolck and set up support 6, places the pre-buried festival 7 of ground on support 6 again, makes the pre-buried 7 weight transfer of festival of ground to the cushion pile, and the pre-buried installation of festival 7 of tower crane ground of being convenient for, and the round pin of 8 and the pre-buried 7 junctions of festival of ground of protection device 9 protection standard is fastened, prevents that the round pin from fastening the corrosion, and the tower crane later stage of being convenient for is dismantled.
The reinforcing mesh 3 comprises X-axis reinforcing steel bars 10, Y-axis reinforcing steel bars 11 and Z-axis reinforcing steel bars 12, the Y-axis reinforcing steel bars 11 are fixed on one side of the X-axis reinforcing steel bars 10, the tops of the X-axis reinforcing steel bars 10 and the tops of the Y-axis reinforcing steel bars 11 are fixedly connected with the Z-axis reinforcing steel bars 12 respectively, and reinforcing steel bars are supported and fixed conveniently through the reinforcing mesh 3.
After the foundation embedded section 7 and the standard section 8 are installed, the pin is fastened and exposed to the outside, the inner-layer sealing device 14 is placed on the inner side of the standard section 8, the outer-layer sealing device 13 is sleeved on the outer side of the inner-layer sealing device 14, the clamping device 15 is rotated, the clamping device 15 extrudes the outer-layer sealing device 13, the outer-layer sealing device 13 extrudes the inner-layer sealing device 14, and the inner-layer sealing device 14 and the outer-layer sealing device 13 are guaranteed to be fastened by the better sealing pin.
The outer sealing device 13 is composed of a first baffle plate 16, a second baffle plate 17, a third baffle plate 18, a buckle plate 19, a convex block 20, a connecting plate 21 and an outer sealing gasket 22, the third baffle plate 18 is arranged on one side of the inner sealing device 14, the buckle plate 19 is arranged on one side of the third baffle plate 18, the buckle plate 19 is rotatably connected with the third baffle plate 18, the second baffle plate 17 is arranged on one side of the third baffle plate 18, the second baffle plate 17 is rotatably connected with the third baffle plate 18, the first baffle plate 16 is rotatably connected with the second baffle plate 17, the connecting plate 21 is fixed on one side of the first baffle plate 16, the convex block 20 is fixed on one side of the connecting plate 21, the convex block 20 is in contact with the buckle plate 19, the clamping device 15 is fixed on one side of the connecting plate 21, the outer sealing gasket 22 is respectively fixed on one sides of the first baffle plate 16 and the second baffle plate 17, the outer side of the pin bolt is sealed through the outer layer sealing device 13, so that the corrosion of the outer side of the pin bolt is prevented, and the later-stage pin bolt is convenient to disassemble.
The first baffle 16, the second baffle 17, the third baffle 18 and the buckle plate 19 are unfolded and penetrate through the space between the standard knots 8, the outer layer sealing gasket 22 of the first baffle 16 and the second baffle 17 is sleeved on the outer side of the pin bolt, the buckle plate 19 is inserted into the lug 20, the buckle plate 19 is contracted when the clamping device 15 is rotated, the third baffle 18 is pulled to be tensioned relative to the second baffle 17 and the first baffle 16, the outer layer sealing gasket 22 is ensured to be tightly contacted with the pin bolt, and the sealing performance is improved.
Clamping device 15 comprises clamping column 26, clamping shell 27, threaded rod 28, handle 29 and slide rail 30, outer sealing device 13 top is fixed with presss from both sides clamping shell 27, it is equipped with and presss from both sides clamping column 26 to press from both sides clamping shell 27 bottom, it is equipped with slide rail 30 to press from both sides between clamping column 26 and the clamping shell 27, press from both sides clamping column 26 and press from both sides through slide rail 30 sliding connection between the clamping shell 27, press from both sides the inside threaded rod 28 that is equipped with of clamping column 26, threaded rod 28 runs through and presss from both sides clamping shell 27 and clamping column 26 threaded connection, threaded rod 28 rotates with clamping shell 27 to be connected, threaded rod 28 one side is fixed with handle 29, presss from both sides outer sealing device 13 and inlayer sealing device 14 tightly through clamping device 15, increases its.
The outer surface of the handle 29 is carved with anti-slip lines, so that the friction force between the hand and the handle 29 is increased, and the use of the clamping device 15 is facilitated.
After the outer sealing device 13 is installed, the handle 29 is rotated, the handle 29 drives the threaded rod 28 to rotate, the threaded rod 28 drives the clamping column 26 to move downwards, and the clamping column 26 presses the buckle plate 19, so that the outer sealing device 13 is driven to be locked.
The inner layer sealing device 14 is composed of an inner layer sealing gasket 23, an extrusion block 24 and an ejection device 25, the extrusion block 24 is arranged on one side of the outer layer sealing device 13, the ejection device 25 is arranged between the extrusion block 24 and the outer layer sealing device 13, the ejection device 25 is provided with two ejection devices, the extrusion block 24 is fixedly connected with the ejection device 25, the ejection device 25 is in contact with the outer layer sealing device 13, the inner layer sealing gasket 23 is fixed on two sides of the extrusion block 24, the inner side of the pin bolt is sealed through the inner layer sealing device 14, the corrosion of the inner side of the pin bolt is prevented, and the later-stage pin bolt is convenient to disassemble.
The ejection device 25 is composed of an ejection shell 31, an ejection spring 32 and an ejection block 33, the ejection shell 31 is fixed on one side of the extrusion block 24, the ejection block 33 is arranged inside the ejection shell 31, the ejection spring 32 is arranged between the ejection block 33 and the ejection shell 31, two ends of the ejection spring 32 are respectively fixedly connected with the inner wall of the ejection shell 31 and the ejection block 33, the ejection device 25 is convenient for sealing between the inner-layer sealing device 14 and the pin bolt, the inner-layer sealing device 14 is protected through better elastic sealing, and the protection device 9 is prevented from being damaged.
When the outer sealing device 13 begins to extrude, the ejecting block 33 of the ejecting device 25 retreats, the ejecting spring 32 compresses to absorb impact force, the ejecting spring 32 conducts clamping force to the extruding block 24, the extruding block 24 extrudes the inner sealing gasket 23, the inner sealing gasket 23 bolts the pin to be sealed on the inner side, the pin is prevented from being corroded, and the tower crane can be conveniently disassembled and assembled at the later stage.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation, includes bored concrete pile (1), bed course (2), reinforcing bar net (3), backing plate (4), crossbeam (5), support (6), pre-buried festival (7) of foundation, standard festival (8) and protection device (9), its characterized in that: the top of the filling pile (1) is provided with a cushion layer (2), the cushion layer (2) is fixedly connected with the filling pile (1), the top of the cushion layer (2) is provided with a reinforcing mesh (3), the reinforcing mesh (3) is fixedly connected with the filling pile (1) and the cushion layer (2), the bottom of the reinforcing mesh (3) is provided with a backing plate (4), the top of the cushion layer (2) is provided with a beam (5), the top of the beam (5) is fixed with a support (6), the top of the support (6) is fixed with a foundation embedded section (7), the top of the foundation embedded section (7) is fixed with a standard section (8), a protection device (9) is arranged between the foundation embedded section (7) and the standard section (8), the protection device (9) is respectively fixedly connected with the foundation embedded section (7) and the standard section (8), the protection device (9) is provided with four and is distributed in a rectangular shape, the top of the foundation embedded section (7) is located at the top end of the steel bar mesh (3), the protection device (9) is composed of an outer sealing device (13), an inner sealing device (14) and a clamping device (15), the outer sealing device (13) is arranged between the foundation embedded section (7) and the standard section (8), the inner sealing device (14) is arranged inside the outer sealing device (13), the inner sealing device (14) is in contact with the outer sealing device (13), the clamping device (15) is fixed on one side of the outer sealing device (13), the outer sealing device (13) is composed of a first baffle plate (16), a second baffle plate (17), a third baffle plate (18), a buckle plate (19), a convex block (20), a connecting plate (21) and an outer sealing gasket (22), the third baffle plate (18) is arranged on one side of the inner sealing device (14), and a buckle plate (19) is arranged on one side of the third baffle plate (18), buckle (19) rotate with third baffle (18) and be connected, third baffle (18) one side is equipped with second baffle (17), second baffle (17) rotate with third baffle (18) and are connected, second baffle (17) one side is equipped with first baffle (16), first baffle (16) rotate with second baffle (17) and are connected, first baffle (16) one side is fixed with connecting plate (21), connecting plate (21) one side is fixed with lug (20), lug (20) and buckle (19) contact, connecting plate (21) one side is fixed with clamping device (15), first baffle (16) and second baffle (17) one side are fixed with outer sealed pad (22) respectively.
2. The embedded section fixing device for the large-scale tower crane foundation of the soft soil foundation according to claim 1, characterized in that: reinforcing bar net (3) comprise X axle reinforcing bar (10), Y axle reinforcing bar (11) and Z axle reinforcing bar (12), X axle reinforcing bar (10) one side is fixed with Y axle reinforcing bar (11), X axle reinforcing bar (10) and Y axle reinforcing bar (11) top respectively with Z axle reinforcing bar (12) fixed connection.
3. The embedded section fixing device for the large-scale tower crane foundation of the soft soil foundation according to claim 1, characterized in that: clamping device (15) comprise pressing from both sides tight post (26), clamp tight shell (27), threaded rod (28), handle (29) and slide rail (30), outer sealing device (13) top is fixed with presss from both sides tight shell (27), it is equipped with and presss from both sides tight post (26) to press from both sides tight shell (27) bottom, it is equipped with slide rail (30) to press from both sides tight post (26) and press from both sides between tight shell (27), press from both sides tight post (26) and press from both sides through slide rail (30) sliding connection between tight shell (27), press from both sides tight post (26) inside threaded rod (28) that is equipped with, threaded rod (28) run through and press from both sides tight shell (27) and press from both sides tight post (26) threaded connection, threaded rod (28) rotate with and are connected tight shell (27), threaded rod (28) one.
4. The embedded section fixing device for the large-scale tower crane foundation of the soft soil foundation according to claim 3, characterized in that: the outer surface of the handle (29) is carved with anti-skid grains.
5. The embedded section fixing device for the large-scale tower crane foundation of the soft soil foundation according to claim 1, characterized in that: the inner layer sealing device (14) is composed of an inner layer sealing gasket (23), an extrusion block (24) and an ejection device (25), the extrusion block (24) is arranged on one side of the outer layer sealing device (13), the ejection device (25) is arranged between the extrusion block (24) and the outer layer sealing device (13), the ejection device (25) is provided with two, the extrusion block (24) is fixedly connected with the ejection device (25), the ejection device (25) is in contact with the outer layer sealing device (13), and the inner layer sealing gasket (23) is fixed on two sides of the extrusion block (24).
6. The large-scale tower crane foundation of soft soil foundation pre-buried festival fixing device of claim 5, its characterized in that: the ejection device (25) is composed of an ejection shell (31), an ejection spring (32) and an ejection block (33), the ejection shell (31) is fixed on one side of the extrusion block (24), the ejection block (33) is arranged inside the ejection shell (31), the ejection spring (32) is arranged between the ejection block (33) and the ejection shell (31), and two ends of the ejection spring (32) are respectively fixedly connected with the inner wall of the ejection shell (31) and the ejection block (33).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695843.0A CN110387899B (en) | 2019-07-30 | 2019-07-30 | Pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695843.0A CN110387899B (en) | 2019-07-30 | 2019-07-30 | Pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation |
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| CN110387899A CN110387899A (en) | 2019-10-29 |
| CN110387899B true CN110387899B (en) | 2021-05-11 |
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| CN201910695843.0A Active CN110387899B (en) | 2019-07-30 | 2019-07-30 | Pre-buried festival fixing device of large-scale tower crane foundation of soft soil foundation |
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| CN113914353A (en) * | 2021-11-25 | 2022-01-11 | 中冶天工集团有限公司 | Grouting device for equipment installation and construction method |
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| CN102454857A (en) * | 2010-11-01 | 2012-05-16 | 常熟市宏达印染机械有限公司 | Combined foundation bolt |
| KR20130032710A (en) * | 2011-09-23 | 2013-04-02 | 한국전력공사 | Supporter of prefabricated steel pipe pole for base rock |
| CN205744847U (en) * | 2016-07-12 | 2016-11-30 | 赵文锦 | Foundation bolt protection device |
| CN206000843U (en) * | 2016-09-05 | 2017-03-08 | 中交第四公路工程局有限公司 | A kind of foundation bolt protection device |
| CN107299643A (en) * | 2017-07-10 | 2017-10-27 | 杭州江润科技有限公司 | Steel lattice column combined type tower crane foundation structure in foundation pit and construction method |
| CN208717934U (en) * | 2018-06-29 | 2019-04-09 | 中建二局第三建筑工程有限公司 | A kind of tower-crane foundation structure |
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2019
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| CN102454857A (en) * | 2010-11-01 | 2012-05-16 | 常熟市宏达印染机械有限公司 | Combined foundation bolt |
| KR20130032710A (en) * | 2011-09-23 | 2013-04-02 | 한국전력공사 | Supporter of prefabricated steel pipe pole for base rock |
| CN205744847U (en) * | 2016-07-12 | 2016-11-30 | 赵文锦 | Foundation bolt protection device |
| CN206000843U (en) * | 2016-09-05 | 2017-03-08 | 中交第四公路工程局有限公司 | A kind of foundation bolt protection device |
| CN107299643A (en) * | 2017-07-10 | 2017-10-27 | 杭州江润科技有限公司 | Steel lattice column combined type tower crane foundation structure in foundation pit and construction method |
| CN208717934U (en) * | 2018-06-29 | 2019-04-09 | 中建二局第三建筑工程有限公司 | A kind of tower-crane foundation structure |
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