CN217419652U - Excavation supporting structure for deep silted geological foundation pit - Google Patents
Excavation supporting structure for deep silted geological foundation pit Download PDFInfo
- Publication number
- CN217419652U CN217419652U CN202220545735.2U CN202220545735U CN217419652U CN 217419652 U CN217419652 U CN 217419652U CN 202220545735 U CN202220545735 U CN 202220545735U CN 217419652 U CN217419652 U CN 217419652U
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- CN
- China
- Prior art keywords
- steel sheet
- sheet pile
- foundation pit
- larsen steel
- rectangular block
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009412 basement excavation Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 88
- 239000010959 steel Substances 0.000 claims abstract description 88
- 238000010276 construction Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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- 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
- Y02E10/20—Hydro energy
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a deep silting geological foundation excavation supporting construction, including the larsen steel sheet pile, the inner wall fixedly connected with I-steel bracing of larsen steel sheet pile, the up end of larsen steel sheet pile is equipped with the cushion cap, be equipped with the steel pipe internal stay between I-steel bracing and the cushion cap, the lateral wall fixedly connected with installation piece of larsen steel sheet pile, it is equipped with the through-hole to run through on the installation piece, the lateral wall fixedly connected with rectangular block of larsen steel sheet pile, be equipped with positioning mechanism on the rectangular block, be equipped with X type steel sheet internal stay between the larsen steel sheet pile, positioning mechanism is including rotating the rotary drum of connection in the rectangular block, the inner wall of rotary drum is equipped with the screw thread. The utility model has reasonable structure design, can position the Larsen steel sheet pile when piling, avoids the error of the driving depth, and improves the construction accuracy; the foundation pit can be supported, accidents of the foundation pit during construction are avoided, and safety is improved.
Description
Technical Field
The utility model relates to a view bridge engineering foundation ditch excavation construction technical field especially relates to a geological foundation ditch excavation supporting construction that becomes silted up deeply.
Background
In landscape engineering, the landscape bridge plays a role in connecting land and water traffic of scenic spots, organizing tour lines, changing viewing lines, decorating water scenes, increasing water level and artistic appreciation; the landscape bridge constructed by the engineering is positioned in coastal silt geology, the difficulty of bridge foundation excavation construction is high, and the phenomenon that the foundation base is raised or even collapsed is easily caused by an excavated foundation pit; the traditional foundation pit excavation method is easy to cause unbalance of the pressure of the soil inside and outside the foundation pit, and the foundation pit problem is easy to occur due to reasons of creeping property of the sludge and the like caused by overhigh water content of the sludge; therefore, the construction method of the Larsen steel sheet pile inner support is adopted for construction, the problem is well solved, the phenomenon of uplift of the base is reduced, the construction time is saved, and the construction cost is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem existing in the prior art and providing a deep silted geological foundation pit excavation supporting structure.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a deep siltation geological foundation pit excavation supporting construction, includes the larsen steel sheet pile, the inner wall fixedly connected with I-steel bracing of larsen steel sheet pile, the up end of larsen steel sheet pile is equipped with the cushion cap, be equipped with the steel pipe internal stay between I-steel bracing and the cushion cap, the lateral wall fixedly connected with installation piece of larsen steel sheet pile, it is equipped with the through-hole to run through on the installation piece, the lateral wall fixedly connected with rectangular block of larsen steel sheet pile, be equipped with positioning mechanism on the rectangular block, be equipped with X type steel sheet internal stay between the larsen steel sheet pile.
Preferably, the positioning mechanism includes a rotary drum rotatably connected in the rectangular block, the inner wall of the rotary drum is provided with threads, the lower end face of the rectangular block is provided with a positioning plate, the upper end face of the positioning plate is fixedly connected with a threaded rod, the threaded rod is in threaded connection with the rotary drum, the upper end face of the rectangular block is provided with a control rod in a penetrating manner, the control rod is fixedly connected with the top of the rotary drum, the upper end face of the positioning plate is fixedly connected with a limiting rod, and the limiting rod extends into the rectangular block and is in sliding connection with the rectangular block.
Preferably, the length and the width of the bearing platform are twenty-two meters and eleven meters respectively, and the edge of the bearing platform is expanded outwards by one hundred fifty centimeters to be the size of the foundation pit.
Preferably, the length of the Larsen steel sheet pile is twelve meters, and the Larsen steel sheet pile adopts a screen type driving method.
Preferably, an I-steel purlin is arranged on the outer side wall of the Larsen steel sheet pile, and the I-steel purlin is connected with the I-steel diagonal brace and the steel pipe inner brace through welding.
Preferably, the mounting block and the through hole are used for mounting of a vertical cone.
Compared with the prior art, the utility model, its beneficial effect does:
1. through positioning mechanism's effect, can fix a position it when Larsen steel sheet pile carries out the pile, avoid driving the degree of depth and appear the error, improved the construction precision.
2. Through the combined action of the steel pipe inner support, the X-shaped steel plate inner support and the I-shaped steel enclosing purlin, the foundation pit can be supported, the accident of the foundation pit during construction is avoided, and the safety is improved.
In conclusion, the Larsen steel sheet pile can be positioned when being driven, so that the driving depth is prevented from being wrong, and the construction accuracy is improved; the foundation pit can be supported, accidents of the foundation pit during construction are avoided, and safety is improved.
Drawings
Fig. 1 is a schematic structural view of a deep silted geological foundation pit excavation supporting structure provided by the utility model;
fig. 2 is a bottom view of the excavation supporting structure of the deep silted geological foundation pit provided by the utility model;
fig. 3 is the utility model provides a deep silt geological foundation excavation supporting construction's positioning mechanism connection schematic.
In the figure: 1 Larsen steel sheet pile, 2 cushion caps, 3I-steel diagonal braces, 4 steel pipe internal braces, 5X-shaped steel plate internal braces, 6 mounting blocks, 7 through holes, 8 rectangular blocks, 9 rotary drums, 10 positioning plates, 11 threaded rods, 12 limiting rods and 13 control rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the deep silted ground foundation pit excavation supporting structure comprises Larsen steel plate piles 1, wherein the Larsen steel plate piles 1 are twelve meters in length, the Larsen steel plate piles 1 adopt a screen type driving method, I-steel inclined struts 3 are fixedly connected to the inner walls of the Larsen steel plate piles 1, bearing platforms 2 are arranged on the upper end faces of the Larsen steel plate piles 1, the length and the width of each bearing platform 2 are twenty-two meters and eleven meters respectively, one hundred fifty centimeters of the edges of the bearing platforms 2 are expanded outwards to be the size of a foundation pit, X-shaped steel plate inner struts 5 are arranged among the Larsen steel plate piles 1, I-steel purlins are distributed on the outer side walls of the Larsen steel plate piles 1, and the I-steel inclined struts 3 and the steel pipe inner struts 4 are connected through welding; firstly, setting out a construction area by a measurer, and marking the specific position of a steel plate pile by a dust spreading line; then Larsen steel sheet pile 1 construction is carried out, and a screen type driving method is adopted for ensuring driving accuracy; during driving, firstly, a pile driver is used for lifting the Larsen steel plate pile 1 to a driving point for pile insertion, a lock catch needs to be aligned during pile insertion, driving is performed again, the verticality of the Larsen steel plate pile 1 is detected through the action of a vertical cone in the process, deviation is avoided, blocking is performed through the action of a positioning plate 10, overstrike is prevented, and the soil penetration depth of the Larsen steel plate pile 1 is six meters below the bottom of a foundation pit; and after the construction of the Larsen steel sheet pile 1 is finished, layered excavation is carried out, the excavation is stopped when the excavation is one meter below the original ground, the steel purlin and the supporting structure are constructed, the welding firmness of all nodes is ensured, the residual earthwork is excavated to the bottom of the foundation pit in a layered mode after the construction is finished, and the deformation condition of the foundation pit is monitored in real time in the excavation process.
A steel pipe inner support 4 is arranged between the I-shaped steel inclined support 3 and the bearing platform 2, the outer side wall of the Larsen steel plate pile 1 is fixedly connected with an installation block 6, a through hole 7 is arranged on the installation block 6 in a penetrating way, the installation block 6 and the through hole 7 are used for installing a vertical cone, the outer side wall of the Larsen steel plate pile 1 is fixedly connected with a rectangular block 8, a positioning mechanism is arranged on the rectangular block 8, the positioning mechanism comprises a rotary drum 9 which is rotatably connected in the rectangular block 8, the inner wall of the rotary drum 9 is provided with threads, the lower end face of the rectangular block 8 is provided with a positioning plate 10, the upper end face of the positioning plate 10 is fixedly connected with a threaded rod 11, the threaded rod 11 is in threaded connection with the rotary drum 9, the upper end face of the rectangular block 8 is provided with a control rod 13 in a penetrating way, the control rod 13 is fixedly connected with the top of the rotary drum 9, the upper end face of the positioning plate 10 is fixedly connected with a limiting rod 12, the limiting rod 12 extends into the rectangular block 8 and is in sliding connection with the rectangular block, when the bottom of a foundation pit is positioned, through measuring the length of Larsen steel sheet pile 1, rotate control lever 13 afterwards, control lever 13 drives rotary drum 9 and rotates, and rotary drum 9 drives threaded rod 11 and moves down, and then can drive locating plate 10 and move down, and when locating plate 10 removed and drives into the degree of depth to Larsen steel sheet pile 1 and stop rotating, so can fix a position Larsen steel sheet pile 1, avoid beating more.
The utility model discloses its functional principle is explained to following mode of operation of accessible:
in the utility model, firstly, a survey crew lays out a construction area, and a dust spreading line marks the specific position of a steel sheet pile; then Larsen steel sheet pile 1 construction is carried out, and a screen type driving method is adopted for ensuring driving accuracy; during pile driving, firstly hoisting the Larsen steel plate pile 1 to a driving point by using a pile driver for pile inserting, aligning a lock catch during pile inserting, driving, detecting the verticality of the Larsen steel plate pile 1 under the action of a vertical cone in the process, avoiding deviation, and blocking by the action of a positioning plate 10 to prevent overstrike, wherein the soil penetration depth of the Larsen steel plate pile 1 is six meters below the bottom of a foundation pit; and after the construction of the Larsen steel sheet pile 1 is finished, layered excavation is carried out, the excavation is stopped when the excavation is one meter below the original ground, the steel purlin and the supporting structure are constructed, the welding firmness of all nodes is ensured, the residual earthwork is excavated to the bottom of the foundation pit in a layered mode after the construction is finished, and the deformation condition of the foundation pit is monitored in real time in the excavation process.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a deep silting geological foundation pit excavation supporting construction, includes Larsen steel sheet pile (1), its characterized in that, the inner wall fixedly connected with I-steel bracing (3) of Larsen steel sheet pile (1), the up end of Larsen steel sheet pile (1) is equipped with cushion cap (2), be equipped with steel pipe internal stay (4) between I-steel bracing (3) and cushion cap (2), the lateral wall fixedly connected with installation piece (6) of Larsen steel sheet pile (1), it is equipped with through-hole (7) to run through on installation piece (6), the lateral wall fixedly connected with rectangular block (8) of Larsen steel sheet pile (1), be equipped with positioning mechanism on rectangular block (8), be equipped with X type steel sheet internal stay (5) between Larsen steel sheet pile (1).
2. The deep silt geological foundation pit excavation supporting structure according to claim 1, characterized in that the positioning mechanism comprises a rotary drum (9) rotatably connected in a rectangular block (8), the inner wall of the rotary drum (9) is provided with threads, the lower end surface of the rectangular block (8) is provided with a positioning plate (10), the upper end surface of the positioning plate (10) is fixedly connected with a threaded rod (11), the threaded rod (11) is in threaded connection with the rotary drum (9), the upper end surface of the rectangular block (8) is penetrated with a control rod (13), the control rod (13) is fixedly connected with the top of the rotary drum (9), the upper end surface of the positioning plate (10) is fixedly connected with a limiting rod (12), and the limiting rod (12) extends into the rectangular block (8) and is in sliding connection with the rectangular block.
3. The excavation supporting structure of the deep silt geological foundation pit according to the claim 1, characterized in that the length and the width of the bearing platform (2) are twenty-two meters and eleven meters respectively, and the edge of the bearing platform (2) is expanded outwards by one hundred fifty centimeters to be the size of the foundation pit.
4. The excavation supporting structure for the deep silt geological foundation pit according to claim 1, characterized in that the length of the Larsen steel plate pile (1) is twelve meters, and the Larsen steel plate pile (1) adopts a screen type driving method.
5. The excavation supporting structure for the deep silt geological foundation pit according to claim 1, characterized in that an I-shaped steel purlin is arranged on the outer side wall of the Larsen steel sheet pile (1), and the I-shaped steel purlin is connected with the I-shaped steel diagonal brace (3) and the steel pipe inner brace (4) through welding.
6. The excavation supporting structure for deep silt geological foundation pit according to claim 1, characterized in that the installation blocks (6) and the through holes (7) are used for installation of a vertical cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545735.2U CN217419652U (en) | 2022-03-14 | 2022-03-14 | Excavation supporting structure for deep silted geological foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545735.2U CN217419652U (en) | 2022-03-14 | 2022-03-14 | Excavation supporting structure for deep silted geological foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217419652U true CN217419652U (en) | 2022-09-13 |
Family
ID=83178471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220545735.2U Expired - Fee Related CN217419652U (en) | 2022-03-14 | 2022-03-14 | Excavation supporting structure for deep silted geological foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217419652U (en) |
-
2022
- 2022-03-14 CN CN202220545735.2U patent/CN217419652U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220913 |