CN114263182B - Foundation pit supporting system - Google Patents
Foundation pit supporting system Download PDFInfo
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- CN114263182B CN114263182B CN202010974566.XA CN202010974566A CN114263182B CN 114263182 B CN114263182 B CN 114263182B CN 202010974566 A CN202010974566 A CN 202010974566A CN 114263182 B CN114263182 B CN 114263182B
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
The application relates to a foundation pit supporting system, it is including setting up in the foundation pit and being used for supporting the backplate of side slope, the backplate on the first side slope links to each other through first bracing piece with the backplate on the second side slope, first bracing piece includes first sleeve, coaxial wearing is established and sliding connection has two first slide bars in the first sleeve, two first slide bars wear out first telescopic one end respectively, first sleeve is the first through-hole that a plurality of and inside are linked together along its length direction is seted up to be the straight line, first butt pole that is used for with backplate looks butt is worn to its axis direction activity in the first through-hole of first sleeve, the one end that the backplate was kept away from to the butt pole is provided with first wedge in first sleeve, be provided with a plurality of and first wedge looks butt and be used for first butt pole to wear out first through-hole on two first slide bars respectively. The support plate has the effect of improving the support strength of the support plate on the foundation pit slope.
Description
Technical Field
The application relates to the field of foundation pit construction, in particular to a foundation pit supporting system.
Background
Currently, a foundation pit is a pit excavated at a base design location according to the elevation of the base and the planar dimensions of the base. Before excavation, the excavation scheme is determined according to geological hydrologic data and the conditions of buildings nearby the site, and waterproof and drainage works are performed. The method of releasing the slope can be used by the person with non-deep excavation to stabilize the soil slope, and the gradient of the soil slope is determined according to relevant construction regulations.
In the related art, chinese patent with publication number of CN107794931B discloses a foundation pit supporting structure, which comprises a supporting plate with a cavity, wherein a vacuum pump is communicated with the upper side of the supporting plate, a supporting pipe inserted into soil is arranged on the side surface of the supporting plate, the supporting pipe is communicated with the cavity, and water absorption holes are formed in the pipe wall of the supporting pipe. After the support pipe is inserted into the soil, air is pumped through the vacuum pump, so that water in the soil flows into the support pipe under negative pressure, the water in the support pipe enters the cavity of the support plate, and the pressure of the soil on the support plate is reduced.
With respect to the related art described above, the inventor considered that there was a defect that the support plate was difficult to support and caused collapse of the side wall of the foundation pit when the support plate was subjected to a large side pressure due to lack of external support of the support plate.
Disclosure of Invention
In order to promote the support strength of backplate to foundation ditch side slope, this application provides a foundation ditch braced system.
The application provides a foundation ditch braced system adopts following technical scheme:
the utility model provides a foundation ditch braced system, is including setting up in the foundation ditch and being used for supporting the backplate of side slope, the cross section of foundation ditch is the rectangle, the side slope includes first side slope, second side slope, third side slope and fourth side slope, first side slope and second side slope are just right along the X axis direction of foundation ditch cross section, third side slope and fourth side slope are just right along the Y axis direction of foundation ditch cross section, backplate on the first side slope passes through first bracing piece with backplate on the second side slope and links to each other, first bracing piece includes first sleeve, coaxial wearing establishes and sliding connection has two first slide bars in the first sleeve, two first slide bar sets up about first sleeve middle part symmetry, two first slide bar wears out the one end of first sleeve respectively, be provided with respectively with the first spring of two first butt, first sleeve is the straight line along its length direction and opens a plurality of first through-holes that are linked together with inside, first through-hole on the first side slope is equipped with backplate on the second side slope and the first support rod, first wedge-shaped section is equipped with the first wedge-shaped section in the first wedge-shaped section is used for the wedge-shaped section in the first wedge-shaped section is the first wedge-shaped section, and the first wedge-shaped section is used for the wedge-shaped section is kept away from to the first.
By adopting the technical scheme, in the process of supporting the side slope in the foundation pit, the support plate is abutted against the side slope of the foundation pit, so that the support plate supports the side slope of the foundation pit; in order to reduce lateral pressure of a pair of support plates with excessive accumulated water in a side slope, the support plates of a first side slope and the support plates of a second side slope are supported along the X-axis direction of the cross section of a foundation pit by a first support rod, in the process, the first support rod is firstly arranged between the support plates of the first side slope and the support plates of the second side slope along the X-axis direction of the cross section of the foundation pit, and two first slide rods respectively extend out of a first sleeve under the abutting action of a first spring so as to respectively abut against the support plates of the first side slope and the support plates of the second side slope; when excessive ponding in first side slope and the second side slope, support plate and second side slope on the first side slope receive the extrusion, thereby make two first slide bars slide in the first sleeve towards respectively, first butt piece on the first slide bar and the inclined plane butt of first wedge, in the in-process that first slide bar continued to move in the first sleeve towards first sleeve, because the inclined plane of first wedge in the first sleeve left half section is opposite to the inclined plane of first wedge in the first sleeve right half section, so first butt piece promotes first wedge drive first butt pole and wears out first through-hole and carry out the butt with the support plate on third side slope or the fourth side slope respectively, thereby lateral pressure and the lateral pressure of second side slope to the third side slope are converted into the butt force to the support plate on the third side slope or the fourth side slope through first bracing piece respectively, support plate and the support plate on the fourth side slope support capacity to support on the side slope has been increased, support plate support strength to the side slope has been promoted.
Preferably, the support plate on the third side slope is connected with the support plate on the fourth side slope through a second support rod, the second support rod comprises a second sleeve, two second slide rods are coaxially arranged in the second sleeve in a penetrating way and are connected in a sliding way, the two second slide rods are symmetrically arranged about the middle of the second sleeve, the two second slide rods penetrate out of one end of the second sleeve respectively, second springs which are respectively abutted to the two second slide rods are arranged in the second sleeve, a plurality of second through holes which are communicated with the inside of the second sleeve are linearly arranged in the second sleeve along the length direction of the second sleeve, a second abutting rod which is used for being abutted to the support plate is movably arranged in the second through hole of the second sleeve in a penetrating way along the axis direction of the second sleeve, one end, far away from the support plate, of the second abutting rod is provided with a second wedge block in the second sleeve, the cross section of the second wedge block is a right triangle, the second sleeve is equally divided into a left half section and a right half section along the length direction of the second sleeve, a plurality of second through holes are respectively arranged on the second sleeve, and the second wedge block is abutted to the second wedge block in the second sleeve.
By adopting the technical scheme, the support plate of the third side slope and the support plate of the fourth side slope are supported along the Y-axis direction of the cross section of the foundation pit through the second support rods, in the process, the second support rods are firstly arranged between the support plate of the third side slope and the support plate of the fourth side slope along the Y-axis direction of the cross section of the foundation pit, and the two second slide rods respectively extend out of the second sleeve under the abutting action of the second springs so as to respectively abut against the support plate of the third side slope and the support plate of the fourth side slope; when water is excessively accumulated in the third side slope and the fourth side slope, the support plates on the third side slope and the support plates on the fourth side slope are extruded, so that the two second slide bars slide towards the second sleeve, the second abutting blocks on the second slide bars are abutted against the inclined surfaces of the second wedge blocks, and in the process that the second slide bars continue to move towards the second sleeve, the inclined surfaces of the first wedge blocks in the left half section of the second sleeve are opposite to the inclined surfaces of the second wedge blocks in the right half section of the second sleeve, the second abutting blocks push the second wedge blocks to drive the second abutting rods to penetrate out of the second through holes to be abutted against the support plates on the third side slope or the fourth side slope respectively, lateral pressure of the third side slope and lateral pressure of the fourth side slope are converted into abutting force against the first side slope or the second side slope respectively through the second supporting rods, supporting capacity of the support plates on the first side slope and the support plates on the second side slope is improved, and supporting strength of the support plates on the side slope is improved.
Preferably, the ends of the first slide bar and the second slide bar are respectively connected with a rotating plate in a rotating way, and the rotating plates are used for being abutted against the support plate.
Through adopting above-mentioned technical scheme, there is the pivoted board through rotating for the slide bar is when with the backplate looks laminating mutually with the backplate after rotating according to the inclination of backplate, has increased the butt area of first slide bar and second slide bar and backplate respectively.
Preferably, the support plate comprises a plurality of support plates, slots with one ends open are arranged in the support plates, inserting blocks used for being inserted into the slots are arranged on the side faces of the support plates, the upper support plates and the lower support plates are in insertion fit with the slots through the inserting blocks, and the left support plates and the right support plates are connected through connecting rods.
Through adopting above-mentioned technical scheme, the backplate is formed through the concatenation of a plurality of extension boards, at the in-process of installing the extension board to the bank protection, follow the slope and follow the installation of supreme extension board down, after the installation of lower floor's extension board is accomplished, by foundation ditch top along the slope of slope to upper strata extension board down, thereby the inserted block of upper strata extension board lower extreme is pegged graft and is advanced in the slot of lower floor's extension board, thereby make upper and lower adjacent two extension boards form wholly after pegging graft cooperation, at the in-process of connecting about two adjacent extension boards, link to each other through the connecting rod, thereby make about adjacent two extension boards form wholly through the connecting rod, consequently, the backplate that a plurality of splices formed forms wholly thereby supports same side slope.
Preferably, the cross sections of the slot and the insert block are isosceles triangles, the opening of the slot in the support plate is gradually reduced from outside to inside, and the length of the insert block in the direction away from the support plate is gradually reduced.
Through adopting above-mentioned technical scheme, all set up the cross section of slot and inserted block into isosceles triangle, the slot has outside-in taper in the opening in the extension board, and the inserted block reduces gradually towards the direction length of keeping away from the extension board, when tightly leaning on the side slope hoist and mount to the lower floor extension board with the upper strata extension board, the inserted block of being convenient for is pegged graft in the slot.
Preferably, the foundation pit is internally provided with inclined struts which are respectively connected with the middle part of the first supporting rod and the middle part of the second supporting rod, and the lower end of each inclined strut is rotationally connected with a base.
Through adopting above-mentioned technical scheme, first bracing piece and second bracing piece lack the support at the in-process that supports the side slope respectively at the middle part of side slope, for first bracing piece and second bracing piece take place the bending fracture at the middle part respectively easily, through being provided with the bracing, make the bracing support to first bracing piece middle part and second bracing piece middle part respectively, reduce the probability that first bracing piece and second bracing piece take place the rupture respectively.
Preferably, the diagonal bracing is a telescopic structure, the diagonal bracing comprises a first supporting rod and a second supporting rod, the second supporting rod is hollow, the first supporting rod is penetrated and connected in the second supporting rod in a threaded mode, one end of the first supporting rod penetrates out of the second supporting rod, and one end of the first supporting rod penetrating out of the second supporting rod is connected with the first supporting rod and the second supporting rod respectively.
Through adopting above-mentioned technical scheme, because the height that first bracing piece and second bracing piece set up is different, when needs support first bracing piece and second bracing piece respectively, according to the height that first bracing piece and second bracing piece set up respectively, through the threaded connection of first branch and second branch, rotate first branch for the length of bracing changes, with the height of adaptation first bracing piece and second bracing piece respectively for butt first bracing piece and second bracing piece.
Preferably, the first support rod and the second support rod are respectively connected with a threaded sleeve in a rotating mode, the threaded sleeve is used for being in threaded connection with the first support rod, and the lower end of the base is provided with a plug pin.
By adopting the technical scheme, when the first supporting rod is respectively abutted with the first supporting rod and the second supporting rod, the first supporting rod is in threaded connection with the first supporting rod through the threaded sleeve, so that the inclined strut is prevented from being respectively separated from the first supporting rod and the second supporting rod; the base is fixed in the foundation pit through the inserted pin at the lower end of the base, so that the stability of the base is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
in the process of supporting the side slope in the foundation pit, the support plate is abutted against the side slope of the foundation pit, so that the support plate supports the side slope of the foundation pit; in order to reduce lateral pressure of a pair of support plates with excessive accumulated water in a side slope, the support plates of a first side slope and the support plates of a second side slope are supported along the X-axis direction of the cross section of a foundation pit by a first support rod, in the process, the first support rod is firstly arranged between the support plates of the first side slope and the support plates of the second side slope along the X-axis direction of the cross section of the foundation pit, and two first slide rods respectively extend out of a first sleeve under the abutting action of a first spring so as to respectively abut against the support plates of the first side slope and the support plates of the second side slope; when excessive accumulated water in the first side slope and the second side slope is accumulated, the support plates on the first side slope and the support plates on the second side slope are extruded, so that the two first slide bars slide towards the inside of the first sleeve respectively, the first abutting blocks on the first slide bars are abutted against the inclined surfaces of the first wedge blocks, and in the process that the first slide bars continue to move towards the inside of the first sleeve, the inclined surfaces of the first wedge blocks in the left half section of the first sleeve are opposite to the inclined surfaces of the first wedge blocks in the right half section of the first sleeve, so that the first abutting blocks push the first wedge blocks to drive the first abutting rods to penetrate out of the first through holes to be abutted against the support plates on the third side slope or the fourth side slope respectively, the lateral pressure of the first side slope and the lateral pressure of the second side slope are respectively converted into the abutting force against the third side slope or the fourth side slope through the first supporting rods, the supporting capacity of the support plates on the third side slope and the fourth side slope is increased, and the supporting strength of the support plates on the side slope is improved;
when needs support first bracing piece and second bracing piece respectively, according to the height that first bracing piece and second bracing piece set up respectively, through the threaded connection of first branch and second branch, rotate first branch for the length of bracing changes, with the height of adaptation first bracing piece and second bracing piece respectively for butt first bracing piece and second bracing piece.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a foundation pit supporting system according to an embodiment of the present application.
Fig. 2 is an enlarged partial schematic view of the portion a in fig. 1.
Fig. 3 is a schematic view of an exploded structure of the first support bar.
Fig. 4 is a schematic view of an exploded structure of the second support bar.
Fig. 5 is an exploded view of the support plate for illustrating the connection of two adjacent support plates.
Reference numerals illustrate: 1. a foundation pit; 2. slope; 201. a first side slope; 202. a second side slope; 203. a third side slope; 204. a fourth side slope; 3. a support plate; 301. a support plate; 4. a first support bar; 401. a first sleeve; 402. a first slide bar; 5. a first spring; 6. a first through hole; 7. a first abutting rod; 8. a first wedge block; 9. a first abutment block; 10. a second support bar; 1001. a second sleeve; 1002. a second slide bar; 11. a second spring; 12. a second through hole; 13. a second abutting rod; 14. a second wedge block; 15. a second abutment block; 16. a rotating plate; 17. a slot; 18. inserting blocks; 19. a connecting rod; 20. diagonal bracing; 2001. a first strut; 2002. a second strut; 21. a base; 22. a threaded sleeve.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a foundation pit supporting system. Referring to fig. 1, a foundation pit supporting system includes a supporting plate 3 disposed in a foundation pit 1 and used for supporting a side slope 2, in this embodiment, before the side slope 2 is supported by the supporting plate 3, a retaining wall is constructed on the side slope 2, and a drain pipe inserted into the side slope 2 is reserved in the construction process of the retaining wall. The cross section of the foundation pit 1 is rectangular, the side slope 2 comprises a first side slope 201, a second side slope 202, a third side slope 203 and a fourth side slope 204, the first side slope 201 and the second side slope 202 are opposite along the X-axis direction of the cross section of the foundation pit 1, and the third side slope 203 and the fourth side slope 204 are opposite along the Y-axis direction of the cross section of the foundation pit 1. The support plate 3 on the first side slope 201 is connected with the support plate 3 on the second side slope 202 through the first support rod 4, and the support plate 3 on the third side slope 203 is connected with the support plate 3 on the fourth side slope 204 through the second support rod 10.
Referring to fig. 1 and 2, a diagonal brace 20 is arranged in the foundation pit 1 and is connected with the middle of the first supporting rod 4 and the middle of the second supporting rod 10 respectively, the lower end of the diagonal brace 20 is rotatably connected with a base 21, and the lower end of the base 21 is welded with a plug pin which is convenient for fixing the base 21. The diagonal brace 20 is of a telescopic structure, and the diagonal brace 20 includes a first strut 2001 and a second strut 2002. The second strut 2002 is hollow, and the first strut 2001 is threaded through the second strut 2002. The first support rod 4 and the second support rod 10 are respectively connected with a threaded sleeve 22 in a rotating way, and one end of the first support rod 2001 penetrating out of the second support rod 2002 is connected with the threaded sleeve 22 in a threaded way.
Referring to fig. 1 and 3, the first support rod 4 includes a first sleeve 401, two first slide bars 402 are coaxially arranged in the first sleeve 401 in a penetrating manner and are slidably connected with each other, and the two first slide bars 402 are symmetrically arranged in the first sleeve 401 with respect to the middle of the first sleeve 401. One end of each first sliding rod 402 penetrates out of the corresponding first sleeve 401, and one end of each first sliding rod 402 penetrating out of the corresponding first sleeve 401 is rotatably connected with a rotating plate 16 which is used for being abutted against the support plate 3. The first sleeve 401 is internally provided with first springs 5 respectively abutted against the two first slide bars 402, the first sleeve 401 is provided with a plurality of first through holes 6 communicated with the inside of the first sleeve along the length direction at equal intervals, and in the embodiment, the distance between every two adjacent first through holes 6 is 20cm. The first supporting rod 7 for supporting the support plate 3 is movably arranged in the first through hole 6 of the first sleeve 401 in a penetrating manner along the axial direction, and the first supporting rod 7 is integrally formed with an anti-falling block with a size larger than that of the first through hole 6 in the first sleeve 401, so that the first supporting rod 7 cannot be separated from the first sleeve 401 in the process of sliding along the length direction of the first through hole 6. The end of the first supporting rod 7, which is far away from the support plate 3, is integrally formed with a first wedge-shaped block 8 in the first sleeve 401, and the cross section of the first wedge-shaped block 8 is a right triangle. The first sleeve 401 is equally divided into a left half section and a right half section along the length direction, the inclined plane of the first wedge block 8 in the left half section of the first sleeve 401 is opposite to the inclined plane of the first wedge block 8 in the right half section of the first sleeve 401, and the two first slide bars 402 are respectively welded with a first abutting block 9 which abuts against the first wedge block 8 and is used for the first abutting rod 7 to penetrate out of the first through hole 6.
Referring to fig. 1 and 4, the second support rod 10 includes a second sleeve 1001, two second slide bars 1002 are coaxially arranged in the second sleeve 1001 in a penetrating and sliding manner, and the two second slide bars 1002 are symmetrically arranged in the second sleeve 1001 with respect to the middle of the second sleeve 1001. One end of each second sliding rod 1002 penetrates out of the second sleeve 1001, and one end of each second sliding rod 1002 penetrating out of the second sleeve 1001 is rotatably connected with a rotating plate 16 for abutting against the support plate 3. The second sleeve 1001 is provided with second springs 11 respectively abutting against two second slide bars 1002, and the second sleeve 1001 is provided with a plurality of second through holes 12 communicating with the inside thereof at equal intervals along the length direction thereof, and in this embodiment, the distance between two adjacent second through holes 12 is 20cm. The second through hole 12 of the second sleeve 1001 is movably penetrated with a second supporting rod 13 for supporting the supporting plate 3 along the axial direction thereof, and the second supporting rod 13 is integrally formed with an anti-falling block with a size larger than that of the second through hole 12 in the second sleeve 1001, so that the second supporting rod 13 cannot be separated from the second sleeve 1001 in the process of sliding along the length direction of the second through hole 12. The end of the second supporting rod 13, which is far away from the supporting plate 3, is integrally formed with a second wedge block 14 in the second sleeve 1001, and the cross section of the second wedge block 14 is a right triangle. The second sleeve 1001 is equally divided into a left half section and a right half section along the length direction thereof, the inclined plane of the second wedge block 14 in the left half section of the second sleeve 1001 is opposite to the inclined plane of the second wedge block 14 in the right half section of the second sleeve 1001, and the two second slide bars 1002 are respectively welded with a second abutting block 15 which abuts against the second wedge block 14 and is used for the second abutting rod 13 to penetrate out of the second through hole 12.
Referring to fig. 1 and 5, the support plate 3 includes a plurality of support plates 301, slots 17 with one open end are provided in the support plates 301, inserting blocks 18 for inserting with the slots 17 are welded on the side surfaces of the support plates 301, and two support plates 301 adjacent to each other vertically are in inserting fit with the slots 17 through the inserting blocks 18, so that the inserting blocks 18 of the upper support plate 301 are convenient to insert into the slots 17. The two support plates 301 adjacent to each other are connected by the connecting rod 19, so that the support plates 301 on the same side slope 2 are integrated.
The implementation principle of the foundation pit supporting system in the embodiment of the application is as follows: in the process of supporting the side slope 2 in the foundation pit 1, the construction of the retaining wall is firstly carried out on the side slope 2, and meanwhile, a drain pipe inserted into the side slope 2 is reserved in the construction process of the retaining wall and used for draining accumulated water in the side slope 2. Then, the diagonal braces 20 facing the side slope 2 are respectively installed in the foundation pit 1 through the base 21, the first support rods 2001 and the second support rods 2002 are connected through threads according to the heights required to be correspondingly supported by the first support rods 4 and the second support rods 10, the first support rods 2001 are rotated, the lengths of the diagonal braces 20 are changed to respectively adapt to the heights of the first support rods 4 and the second support rods 10, and then the first support rods 4 and the second support rods 10 are respectively connected with the corresponding first support rods 2001 through the threaded sleeves 22 in a threaded mode. Respectively rotating the inclined struts 20, driving the first support rods 4 to rotate to corresponding heights by the inclined struts 20 corresponding to the first support rods 4, and respectively extending the two first slide rods 402 from the first sleeve 401 under the abutting action of the first springs 5 and supporting the support plates 3 of the first side slope 201 and the support plates 3 of the second side slope 202 along the X-axis direction of the cross section of the foundation pit 1; the diagonal braces 20 corresponding to the second support rods 10 are driven to the corresponding heights, and the two second slide bars 1002 respectively extend out of the second sleeve 1001 under the abutting action of the second springs 11 and are arranged between the third slope 203 support plate 3 and the fourth slope 204 support plate 3 along the Y-axis direction of the cross section of the foundation pit 1.
In the process of abutting and supporting the third side slope 203 and the fourth side slope 204 through the first supporting rod 4, when excessive accumulated water exists in the first side slope 201 and the second side slope 202, the supporting plate 3 on the first side slope 201 and the supporting plate 3 on the second side slope 202 are extruded, so that the two first sliding rods 402 slide towards the inside of the first sleeve 401 respectively, and the first abutting blocks 9 on the first sliding rods 402 abut against the inclined surfaces of the first wedge blocks 8. In the process that the first sliding rod 402 continues to move towards the first sleeve 401, the inclined plane of the first wedge block 8 in the left half section of the first sleeve 401 is opposite to the inclined plane of the first wedge block 8 in the right half section of the first sleeve 401, so that the first abutting block 9 pushes the first wedge block 8 to drive the first abutting rod 7 to penetrate out of the first through hole 6 to abut against the supporting plate 3 on the third side slope 203 or the fourth side slope 204 respectively, and therefore the lateral pressure of the first side slope 201 and the lateral pressure of the second side slope 202 are converted into abutting force against the third side slope 203 or the fourth side slope 204 respectively through the first supporting rod 4, and supporting capacity of supporting the side slope 2 by the supporting plate 3 on the third side slope 203 and the supporting plate 3 on the fourth side slope 204 is improved.
In the process of abutting and supporting the first side slope 201 and the second side slope 202 through the second supporting rod 10, when excessive accumulated water in the third side slope 203 and the fourth side slope 204 is accumulated, the supporting plate 3 on the third side slope 203 and the supporting plate 3 on the fourth side slope 204 are extruded, so that the two second sliding rods 1002 slide towards the inside of the second sleeve 1001 respectively, the second abutting blocks 15 on the second sliding rods 1002 abut against the inclined surfaces of the second wedge blocks 14, and in the process of continuing to move the second sliding rods 1002 towards the second sleeve 1001, the inclined surfaces of the first wedge blocks 8 in the left half section of the second sleeve 1001 and the inclined surfaces of the second wedge blocks 14 in the right half section of the second sleeve 1001 are opposite, so that the second abutting blocks 15 push the second wedge blocks 14 to drive the second abutting blocks 13 to penetrate out of the second through holes 12 to abut against the supporting plates 3 on the third side slope 203 or the fourth side slope 204 respectively, the side pressure of the third side slope 203 and the side pressure of the fourth side slope 204 are converted into the side pressure of the second side slope 203 or the supporting plate 3 on the second side slope 202 through the second supporting blocks 202 respectively, and the supporting plate 3 on the side slope 201 can be increased.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The utility model provides a foundation ditch braced system which characterized in that: including setting up in foundation ditch (1) and being used for supporting backplate (3) of slope (2), the cross section of foundation ditch (1) is the rectangle, slope (2) are including first slope (201), second slope (202), third slope (203) and fourth slope (204), first slope (201) and second slope (202) are just right along the X axis direction of foundation ditch (1) cross section, third slope (203) and fourth slope (204) are just right along the Y axis direction of foundation ditch (1) cross section, backplate (3) on first slope (201) link to each other through first bracing piece (4) with backplate (3) on second slope (202), first bracing piece (4) include first sleeve (401), coaxial wearing to establish and sliding connection have two first (402) in first sleeve (401), two first sleeve (402) are just right with first sleeve (401) middle part symmetry, two first sleeve (402) are just right along the Y axis direction of foundation ditch (1) cross section, first sleeve (401) are equipped with a plurality of first slide bar (401) and first slide bar (401) are connected through first one end (6) and are connected with first slide bar (401) are that first slide bar (401) are connected respectively, a first supporting rod (7) for supporting the supporting plate (3) is movably arranged in the first through hole (6) of the first sleeve (401) along the axial direction of the first through hole, a first wedge-shaped block (8) is arranged in the first sleeve (401) at one end, far away from the supporting plate (3), of the first supporting rod (7), the cross section of the first wedge-shaped block (8) is a right triangle, the first sleeve (401) is equally divided into a left half section and a right half section along the length direction of the first sleeve, the inclined plane of the first wedge-shaped block (8) in the left half section of the first sleeve (401) is opposite to the inclined plane of the first wedge-shaped block (8) in the right half section of the first sleeve (401), and a plurality of first supporting blocks (9) which are propped against the first wedge-shaped block (8) and are used for enabling the first supporting rod (7) to penetrate out of the first through hole (6) are respectively arranged on the two first sliding rods (402);
the support plate (3) on the third side slope (203) is connected with the support plate (3) on the fourth side slope (204) through a second support rod (10), the second support rod (10) comprises a second sleeve (1001), two second slide bars (1002) are coaxially arranged in the second sleeve (1001) in a penetrating and sliding manner, the two second slide bars (1002) are symmetrically arranged relative to the middle part of the second sleeve (1001), one end of the second sleeve (1001) is respectively penetrated out of the two second slide bars (1002), a second spring (11) which is respectively abutted with the two second slide bars (1002) is arranged in the second sleeve (1001), a plurality of second through holes (12) which are communicated with the inside of the second sleeve are linearly arranged in the second sleeve (1001) along the length direction of the second sleeve, a second supporting rod (13) which is abutted with the support plate (3) is movably arranged in the second through holes (12) along the axis direction of the second sleeve, one end of the second supporting rod (13) which is far away from the second sleeve (1001) is provided with a right-angle triangle-shaped section (14) along the length direction of the second sleeve (1001), the right-angle section (14) is provided with a right-angle section (14) and the right-angle section (1001), the inclined plane of the second wedge-shaped block (14) in the left half section of the second sleeve (1001) is opposite to the inclined plane of the second wedge-shaped block (14) in the right half section of the second sleeve (1001), and a plurality of second abutting blocks (15) which are abutted with the second wedge-shaped block (14) and used for enabling the second abutting rod (13) to penetrate out of the second through hole (12) are respectively arranged on the two second sliding rods (1002).
2. A foundation pit support system according to claim 1, wherein: the ends of the first sliding rod (402) and the second sliding rod (1002) are respectively connected with a rotating plate (16) which is used for being abutted against the support plate (3) in a rotating mode.
3. A foundation pit support system according to claim 1, wherein: the support plate (3) comprises a plurality of support plates (301), slots (17) with one ends open are formed in the support plates (301), inserting blocks (18) used for being inserted into the slots (17) are arranged on the side faces of the support plates (301), the upper support plates (301) and the lower support plates (301) are in insertion fit with the slots (17) through the inserting blocks (18), and the left support plates and the right support plates (301) are connected through connecting rods (19).
4. A pit support system according to claim 3, wherein: the cross sections of the slot (17) and the insert block (18) are isosceles triangles, the opening of the slot (17) in the support plate (301) is gradually reduced from outside to inside, and the length of the insert block (18) is gradually reduced towards the direction away from the support plate (301).
5. A foundation pit support system according to claim 1, wherein: the foundation pit (1) is internally provided with inclined struts (20) which are respectively connected with the middle parts of the first support rods (4) and the middle parts of the second support rods (10), and the lower ends of the inclined struts (20) are rotationally connected with bases (21).
6. The foundation pit support system of claim 5, wherein: the diagonal bracing (20) is of a telescopic structure, the diagonal bracing (20) comprises a first supporting rod (2001) and a second supporting rod (2002), the second supporting rod (2002) is hollow, the first supporting rod (2001) is penetrated and connected into the second supporting rod (2002) in a threaded mode, one end of the first supporting rod (2001) penetrates out of the second supporting rod (2002), and one end of the first supporting rod (2001) penetrates out of the second supporting rod (2002) to be connected with the first supporting rod (4) and the second supporting rod (10) respectively.
7. The foundation pit support system of claim 6, wherein: the first support rod (4) and the second support rod (10) are respectively connected with a threaded sleeve (22) in a threaded connection with the first support rod (2001) in a rotating mode, and a plug pin is arranged at the lower end of the base (21).
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| CN202010974566.XA CN114263182B (en) | 2020-09-16 | 2020-09-16 | Foundation pit supporting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010974566.XA CN114263182B (en) | 2020-09-16 | 2020-09-16 | Foundation pit supporting system |
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| CN114263182A CN114263182A (en) | 2022-04-01 |
| CN114263182B true CN114263182B (en) | 2023-06-30 |
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| CN211395697U (en) * | 2019-11-23 | 2020-09-01 | 四川志德岩土工程有限责任公司 | Expansive soil foundation pit soil nailing wall supporting structure |
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| JP2545197B2 (en) * | 1993-10-20 | 1996-10-16 | 強化土エンジニヤリング株式会社 | Reinforced soil structure |
| DE202004018886U1 (en) * | 2004-12-07 | 2005-02-24 | Fershtandiker, Ilya | Lost shuttering system for foundations incorporates water seals between shuttering sections |
| US8458984B2 (en) * | 2009-07-28 | 2013-06-11 | Frederick S. Marshall | System and method for forming a movable slab foundation |
| CN206625243U (en) * | 2017-04-08 | 2017-11-10 | 周建龙 | Rectangular deep foundation pit large-span steel-reinforced concrete inner supporting structure |
| CN207794109U (en) * | 2018-01-23 | 2018-08-31 | 贵州和谐生态景观有限公司 | Expressway slope structure |
| CN110130363A (en) * | 2019-05-26 | 2019-08-16 | 王琪 | Assembled is implanted into foundation pit enclosure stake and pile wall interaction structure and its construction method |
| CN111501821B (en) * | 2020-03-27 | 2021-11-26 | 贵州龙享建设有限公司 | Retaining device that hydraulic engineering construction was used |
| CN111648380A (en) * | 2020-06-19 | 2020-09-11 | 江苏麦廊新材料科技有限公司 | Convenient pin-connected panel foundation ditch safety bank protection |
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| JP2017095998A (en) * | 2015-11-25 | 2017-06-01 | 株式会社ポラス暮し科学研究所 | Block masonry earth retaining foundation and construction method of block masonry earth retaining foundation |
| CN211395697U (en) * | 2019-11-23 | 2020-09-01 | 四川志德岩土工程有限责任公司 | Expansive soil foundation pit soil nailing wall supporting structure |
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