CN213173742U - Deep basal pit steel-pipe pile supporting construction - Google Patents
Deep basal pit steel-pipe pile supporting construction Download PDFInfo
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- CN213173742U CN213173742U CN202021498139.0U CN202021498139U CN213173742U CN 213173742 U CN213173742 U CN 213173742U CN 202021498139 U CN202021498139 U CN 202021498139U CN 213173742 U CN213173742 U CN 213173742U
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Abstract
The utility model belongs to the technical field of excavation supporting and relates to a deep basal pit steel-pipe pile supporting construction is related to, it includes the vertical cofferdam that locates the perisporium of foundation ditch, the cofferdam includes a plurality of first steel-pipe piles, install the steel sheet pile between the adjacent first steel-pipe pile, the opening orientation that has set firmly square steel and square steel on the week side of first steel-pipe pile is in the steel sheet pile, the steel sheet pile both ends are inlayed respectively and are established on the inside wall of adjacent two square steels, and removable the installation has the fastener between square steel surface and the steel sheet pile terminal surface. This application has the effect that reinforcing support intensity, improvement construction security nature.
Description
Technical Field
The application relates to the field of foundation pit support, especially, relate to a deep basal pit steel-pipe pile supporting construction.
Background
Steel sheet piles have been used in the civil engineering industry for over two hundred years, for example, in foundation pit fencing, slope protection, soil and water conservation, hydraulic engineering, harbor engineering, and the like. Because the steel sheet pile has the advantages of reliable quality of factory prefabrication, stable material quality, quick construction, reutilization, environmental protection and no pollution, the steel sheet pile is more and more accepted by the engineering field and is more and more widely applied.
Now, a chinese patent with patent publication number CN206052741U is retrieved, and discloses a steel sheet pile cofferdam for supporting a pile cap foundation pit, which comprises an inner support and a cofferdam main body formed by sequentially connecting and enclosing a plurality of steel sheet piles. The section of the cofferdam main body is rectangular. The inner support is positioned in the cofferdam main body. The inner support comprises an edge beam and a horizontal support, the edge beam is arranged along the inner wall of the cofferdam main body, and the horizontal support is connected with two opposite side edges of the cofferdam main body respectively.
Aiming at the related technologies, the inventor thinks that the whole steel sheet pile is in a flat plate shape, the strength of the section of the cofferdam body formed by enclosing is small, the cofferdam body is difficult to resist the collapse or landslide of the soil body around, the subsequent excavation of a foundation pit is caused, and the defect of low construction safety exists.
SUMMERY OF THE UTILITY MODEL
In order to strengthen support intensity, improve construction safety, this application provides a deep basal pit steel-pipe pile supporting construction.
The application provides a deep basal pit steel-pipe pile supporting construction adopts following technical scheme:
the utility model provides a deep basal pit steel-pipe pile supporting construction, includes the vertical cofferdam of locating the perisporium of foundation ditch, the cofferdam includes a plurality of first steel-pipe piles, and is adjacent install the steel sheet pile between the first steel-pipe pile, the opening orientation that has vertically set firmly square steel and square steel on the week side of first steel-pipe pile is in the steel sheet pile, the steel sheet pile both ends are inlayed respectively and are established adjacent two on the inside wall of square steel, just the square steel surface with the fastener is dismantled to install between the steel sheet pile terminal surface.
Through adopting above-mentioned technical scheme, dig at the foundation ditch and establish the completion back, constructor corresponds the welding square steel on the week side of first steel-pipe pile, then hoist and mount first steel-pipe pile and make its equidistant vertical diapire week edge of ramming into the foundation ditch support the soil body that blocks the foundation ditch perisporium on, top-down slides down the bottom that makes the steel sheet pile in the clearance of two adjacent square steels with the steel sheet pile correspondence plug-in connection and imbeds the foundation ditch diapire equally, utilize the fastener to tightly meet steel sheet pile and square steel afterwards, the construction of the mode of buildding of above-mentioned cofferdam is convenient, the mounting structure intensity of comparing in single steel sheet pile is stronger, the fastness is higher, and then the security of follow-up foundation ditch.
Preferably, the steel sheet pile includes flange and mounting panel, two the mounting panel sets firmly respectively on the both ends of flange, the mounting panel plug-in connect to in the square steel, the fastener includes the mounting bar and supports tight bolt, the one end plug-in connect to on the inner wall of square steel and with mounting panel surface butt.
By adopting the technical scheme, the contact area between the steel sheet pile and the soil body is larger due to the arrangement of the convex plate, the mounting strip is correspondingly inserted into the square steel, the mounting plate is gradually abutted against one side of the soil body, then the square steel and the mounting strip are tightly abutted against each other without a gap, the structure is simple, materials are easily obtained, and the cost is lower.
Preferably, the width of the mounting plate is greater than the sum of the widths of the two mounting bars.
Through adopting above-mentioned technical scheme, the mounting bar can take over the butt in the corner of flange and mounting panel when the installation, then along the surperficial slip mounting bar of mounting panel insert the square steel can to ensure that the mounting bar can assemble smoothly.
Preferably, the side wall of the square steel, which is far away from the foundation pit, is provided with a threaded hole in threaded connection with the peripheral side of the tightening bolt, and the end part of the tightening bolt is movably abutted against the end face of the mounting bar.
Through adopting above-mentioned technical scheme, support and tightly tie mutually supporting with the screw hole and can make the clearance between mounting bar and the mounting panel further reduce to prevent that the mounting bar from the condition emergence of normal square steel slippage, make first steel-pipe pile and steel sheet pile firm the linking together.
Preferably, in the inside four corners department in cofferdam still vertically is provided with the second steel-pipe pile of pegging graft to the foundation ditch in, the top an organic whole of second steel-pipe pile has set firmly the steel-pipe cover, the steel-pipe cover is L type and its both ends all are uncovered setting, and is adjacent the level is pegged graft between the open end of steel-pipe cover and is had the crossbeam, be provided with the support piece that is used for strengthening support intensity between second steel-pipe pile and the cofferdam.
Through adopting above-mentioned technical scheme, the steel-pipe cover that sets firmly on the second steel-pipe pile supports the cooperation with the grafting of crossbeam, has formed the structure that a secondary supported, can prevent the slope or the collapse of cofferdam, has built safer construction environment for constructor, reduces the emergence of construction incident as far as possible.
Preferably, the support member includes a plurality of sets of diagonal braces symmetrically fixed to the peripheral side of the second steel pipe pile, and the end portions of the diagonal braces far away from the second steel pipe pile are abutted to the surface of the steel plate pile.
Through adopting above-mentioned technical scheme, the support intensity of corner can strengthen by the setting up of diagonal brace, makes the second steel-pipe pile of fore-bracing and cofferdam support each other and be an organic whole.
Preferably, the bottom ends of the first steel pipe pile and the second steel pipe pile are fixedly provided with pointed ends.
Through adopting above-mentioned technical scheme, the adding of tip is established and is made first steel-pipe pile and second steel-pipe pile can be faster go into the soil body deeply for assembly efficiency, and make the steel-pipe pile can insert to more deeply, with the horizontal thrust resistance of reinforcing cofferdam.
Preferably, the cofferdam is a single layer or a double layer.
Through adopting above-mentioned technical scheme, double-deck cofferdam, first steel-pipe pile between two-layer is dislocation set with the steel sheet pile, has strengthened the bulk strength of cofferdam once more.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a perspective view of an embodiment of the present application;
fig. 3 is an enlarged view at a in fig. 2.
Reference numerals: 1. cofferdam; 11. a first steel pipe pile; 12. steel sheet piles; 121. a convex plate; 122. mounting a plate; 13. square steel; 2. a fastener; 21. mounting a bar; 22. the bolt is tightly propped; 23. a threaded hole; 3. steel pipe sleeve; 4. a cross beam; 5. a diagonal brace; 6. a tip; 7. and a second steel pipe pile.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the application discloses a deep foundation pit steel pipe pile supporting structure, including vertical cofferdam 1 of enclosing the perisporium of locating the foundation pit, cofferdam 1 includes a plurality of first steel pipe piles 11, install steel sheet pile 12 between the adjacent first steel pipe pile 11, steel sheet pile 12 includes flange 121 and mounting panel 122, the cross-section of flange 121 is trapezoidal, two mounting panels 122 set firmly respectively on the both ends terminal surface of flange 121, the area of contact between steel sheet pile 12 and the soil body is bigger in the setting up of flange 121.
Referring to fig. 1 and 2, square steel 13 is vertically and fixedly arranged on the peripheral side of a first steel pipe pile 11, after a foundation pit is dug, constructors correspondingly weld the square steel 13 on the peripheral side of the first steel pipe pile 11, then the first steel pipe pile 11 is hoisted to be vertically rammed into the peripheral edge of the bottom wall of the foundation pit at equal intervals to resist against soil on the peripheral wall of the foundation pit, a pointed end 6 is fixedly arranged at the bottom end of the first steel pipe pile 11, the pointed end 6 is conical, and the pointed end 6 enables the first steel pipe pile 11 to quickly penetrate into the soil deeply, so that the assembly efficiency is improved; and the opening of square steel 13 is all towards mounting panel 122, inlay respectively and establish on the inside wall of two adjacent square steel 13 at the mounting panel 122 both ends of steel sheet pile 12, when installing steel sheet pile 12, top-down pegs graft steel sheet pile 12 to slide down in the clearance of two adjacent square steel 13 and makes the bottom of steel sheet pile 12 imbed the foundation ditch diapire equally, and removable fastener 2 of installing between square steel 13 surface and the steel sheet pile 12 terminal surface, can tightly meet steel sheet pile 12 and square steel 13 through fastener 2, the construction of the mode of building of above-mentioned cofferdam 1 is convenient, the mounting structure intensity of comparing in single steel sheet pile 12 is stronger, the fastness is higher, and then the security of follow-up foundation ditch construction operation has been improved.
Referring to fig. 1 and 2, the fastening member 2 includes a mounting bar 21 and a tightening bolt 22, one end of the mounting bar 21 is inserted into the inner wall of the square steel 13 and is tightened with the surface of the mounting plate 122, and the width of the mounting plate 122 is greater than the sum of the widths of the two mounting bars 21, when the mounting bar 21 is installed, the mounting bar 21 can be firstly tightened at the corner of the convex plate 121 and the mounting plate 122, then the mounting bar 21 is slid along the surface of the mounting plate 122 and inserted into the square steel 13, so that the mounting plate 122 is gradually tightened towards one side of the soil body, and then the square steel 13 and the mounting bar 21 are tightly tightened without a gap, so that the mounting bar 21 can be smoothly assembled, meanwhile, the structure is simple, materials are easy. The side wall of the square steel 13, which is far away from the foundation pit, is provided with a threaded hole 23 in threaded connection with the peripheral side of the tightening bolt 22, the end part of the tightening bolt 22 is movably abutted against the end surface of the mounting bar 21, and the mutual matching of the tightening bolt 22 and the threaded hole 23 can further reduce the gap between the mounting bar 21 and the mounting plate 122, so that the mounting bar 21 is prevented from slipping off from the square steel 13, and the first steel pipe pile 11 is firmly connected with the steel sheet pile 12.
Referring to fig. 2 and 3, second steel pipe piles 7 inserted into the foundation pit are vertically arranged at four corners inside the cofferdam 1, and the bottom ends of the second steel pipe piles 7 are fixedly connected with the pointed ends 6, so that the second steel pipe piles 7 can be inserted deeper to enhance the transverse thrust resistance of the cofferdam 1; the top end of the second steel pipe pile 7 is integrally and fixedly provided with a steel pipe sleeve 3, the steel pipe sleeve 3 is L-shaped, two ends of the steel pipe sleeve 3 are arranged in an open mode, a cross beam 4 is horizontally inserted between the open ends of the adjacent steel pipe sleeves 3, a support piece for reinforcing the support strength is arranged between the second steel pipe pile 7 and the cofferdam 1, the support piece comprises a plurality of groups of inclined supporting rods 5 symmetrically and fixedly arranged on the peripheral sides of the second steel pipe pile 7, the end parts, far away from the second steel pipe pile 7, of the inclined supporting rods 5 are abutted against the surface of the steel plate pile 12, the support strength at the corners is enhanced through the arrangement of the inclined supporting rods 5, and the second steel pipe pile 7 and the cofferdam; the steel pipe sleeve 3 fixedly arranged on the second steel pipe pile 7 is matched with the splicing support of the cross beam 4 to form a secondary support structure, so that the inclination or collapse of the cofferdam 1 can be prevented, a safer construction environment is created for constructors, and construction safety accidents are reduced as much as possible.
The implementation principle of the embodiment is as follows: through corresponding welding square steel 13 on the week side at first steel-pipe pile 11, correspond welding square steel 13 on the week side of the first steel-pipe pile 11 of hoist and mount, then top-down corresponds steel sheet pile 12 and pegs graft to the clearance of two piece adjacent square steel 13 in the bottom that slides down makes steel sheet pile 12 imbed the foundation ditch diapire equally, still insert the mounting bar 21 afterwards in square steel 13 and make steel sheet pile 12 and square steel 13 tightly meet, the mounting structure intensity of comparing in single steel sheet pile 12 is stronger, the fastness is higher, and then the security of follow-up foundation ditch construction operation has been improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a deep basal pit steel-pipe pile supporting construction, includes vertical cofferdam (1) of enclosing the perisporium of locating the foundation ditch, its characterized in that: cofferdam (1) includes a plurality of first steel-pipe piles (11), and is adjacent install steel sheet pile (12) between first steel-pipe pile (11), the vertical opening that has set firmly square steel (13) and square steel (13) on the week side of first steel-pipe pile (11) is towards steel sheet pile (12), steel sheet pile (12) both ends are inlayed respectively and are established adjacent two on the inside wall of square steel (13), just square steel (13) surface with fastener (2) are installed to the removable between steel sheet pile (12) terminal surface.
2. The deep foundation pit steel pipe pile supporting structure of claim 1, wherein: the steel sheet pile (12) comprises a convex plate (121) and mounting plates (122), wherein the mounting plates (122) are fixedly arranged at two ends of the convex plate (121) respectively, the mounting plates (122) are inserted into the square steel (13), the fasteners (2) comprise mounting strips (21) and abutting bolts (22), and one ends of the mounting strips (21) are inserted into the inner wall of the square steel (13) and abutted to the surfaces of the mounting plates (122).
3. The deep foundation pit steel pipe pile supporting structure of claim 2, wherein: the width of the mounting plate (122) is larger than the sum of the widths of the two mounting bars (21).
4. The deep foundation pit steel pipe pile supporting structure of claim 3, wherein: the square steel (13) is far away from the side wall of the foundation pit and is provided with a threaded hole (23) connected with the circumferential side of the tightening bolt (22) in a threaded manner, and the end part of the tightening bolt (22) is movably abutted against the end surface of the mounting bar (21).
5. The deep foundation pit steel pipe pile supporting structure of claim 1, wherein: in cofferdam (1) inside four corners department still vertically is provided with second steel-pipe pile (7) of pegging graft to in the foundation ditch, the top an organic whole of second steel-pipe pile (7) has set firmly steel-pipe sleeve (3), steel-pipe sleeve (3) are L type and its both ends all are uncovered setting, and are adjacent horizontal grafting has crossbeam (4) between the open end of steel-pipe sleeve (3), be provided with the support piece that is used for strengthening support intensity between second steel-pipe pile (7) and cofferdam (1).
6. The deep foundation pit steel pipe pile supporting structure of claim 5, wherein: the supporting piece comprises a plurality of groups of inclined supporting rods (5) symmetrically and fixedly arranged on the peripheral side of the second steel pipe pile (7), and the end parts, far away from the second steel pipe pile (7), of the inclined supporting rods (5) are abutted against the surface of the steel plate pile (12).
7. The deep foundation pit steel pipe pile supporting structure of claim 6, wherein: the bottom ends of the first steel pipe pile (11) and the second steel pipe pile (7) are fixedly provided with sharp heads (6).
8. The deep foundation pit steel pipe pile supporting structure of claim 1, wherein: the cofferdam (1) is a single layer or double layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498139.0U CN213173742U (en) | 2020-07-25 | 2020-07-25 | Deep basal pit steel-pipe pile supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498139.0U CN213173742U (en) | 2020-07-25 | 2020-07-25 | Deep basal pit steel-pipe pile supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213173742U true CN213173742U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021498139.0U Active CN213173742U (en) | 2020-07-25 | 2020-07-25 | Deep basal pit steel-pipe pile supporting construction |
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| Country | Link |
|---|---|
| CN (1) | CN213173742U (en) |
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- 2020-07-25 CN CN202021498139.0U patent/CN213173742U/en active Active
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