CN113529747A - Foundation ditch lateral wall is prevented collapsing and is used protective structure - Google Patents
Foundation ditch lateral wall is prevented collapsing and is used protective structure Download PDFInfo
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- CN113529747A CN113529747A CN202110991507.8A CN202110991507A CN113529747A CN 113529747 A CN113529747 A CN 113529747A CN 202110991507 A CN202110991507 A CN 202110991507A CN 113529747 A CN113529747 A CN 113529747A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
- E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
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Abstract
The invention relates to the technical field of foundation pit protection, in particular to a protection structure for preventing collapse of a side wall of a foundation pit, which comprises a protection frame, wherein the protection frame consists of a pair of bilaterally symmetrical combination plates and rainproof cloth, the combination plates are assembled by a plurality of groups of templates which are linearly distributed, the upper ends of the pair of bilaterally symmetrical combination plates are connected through top beams which are linearly distributed, the plurality of groups of templates which are linearly and vertically distributed are connected through three groups of channel steel cross beams which are transversely clamped, and the protection structure has the advantages that: through the cooperation that sets up curb plate and draw-in groove, realize the fastening assembly between the multiunit template, the lower extreme that realizes adjacent template through the cooperation in arrow head piece and arrow head groove is connected, through the joint of back timber, realizes the connection of upper end, realizes further rigidity between the adjacent template through the channel-section steel crossbeam to reach the purpose of convenient equipment.
Description
Technical Field
The invention relates to the technical field of foundation pit protection, in particular to a protection structure for preventing collapse of a side wall of a foundation pit.
Background
In the building engineering, the infrastructure is the most important one in whole building, need excavate earlier the foundation ditch and build the ground usually, after excavating the foundation ditch, in order to prevent that the lateral wall of foundation ditch from taking place to collapse, need temporarily to support with protection bearing structure, most current small-size foundation ditch protective structure is comparatively crude, generally stand the steel sheet at the foundation ditch inner wall, place the steel pipe again between the steel sheet, the steel sheet is supported tightly through the both ends of steel pipe, in order to reach the purpose that prevents the foundation ditch lateral wall and cave in, but this structure is very unstable, and do not possess the effect of rain-proof prevent wind and prevention of seepage water, simultaneously, steel pipe horizontal inside the foundation ditch also very influences the workman and is under construction in the foundation ditch, current foundation ditch protector really fixes and strutting arrangement, in case the foundation ditch landslide earth, cause the toppling over of protection lateral wall very easily, thereby cause accidents such as burying.
Therefore, the protection structure for preventing the collapse of the side wall of the foundation pit is provided, and the problems of convenient assembly and stable support of the protection device are solved.
Disclosure of Invention
The invention aims to provide a protective structure for preventing the side wall of a foundation pit from collapsing so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a protection structure for preventing collapse of a foundation pit side wall comprises a protection frame, wherein the protection frame is composed of a pair of bilaterally symmetrical combination plates and rainproof cloth, the combination plates are assembled by a plurality of groups of templates which are linearly distributed, the upper ends of the pair of combination plates which are bilaterally symmetrical are connected through top beams which are linearly distributed, the plurality of groups of templates which are linearly and vertically distributed are connected through three groups of channel steel cross beams which are transversely clamped, the templates are fixedly connected with the channel steel cross beams through fastening screws, the lower end of each template is provided with a tip which is inserted at the bottom of the foundation pit, a pair of arrow grooves which are combined and symmetrical up and down are arranged on the tips which are mutually attached between the adjacent templates, a pair of arrow blocks which are formed by combining and symmetrical up and down are respectively inserted in the arrow grooves, one side of each arrow block is provided with a lower anchor which is inserted at the foundation pit side wall, and the inner side of each arrow block is provided with a support plate, the supporting plate is rotatably provided with a rotating rod, the rotating rod is telescopically provided with a telescopic rod with adjustable length and abutted to the outer wall of the lower end of the channel steel beam, the top beam is fastened and pressed on a pair of templates which are in bilateral symmetry, the upper end of the top beam is provided with a waterproof cloth, and the side edge of the waterproof cloth is fastened on the top beam.
Preferably, a pair of second side plates is vertically and symmetrically arranged on the inner side of the template, a pair of first clamping grooves which are vertically distributed are formed in the positions, corresponding to the channel steel cross beam, of the second side plates, and screw holes are formed between the pair of first clamping grooves which are vertically symmetrical.
Preferably, one side welding that the channel-section steel crossbeam is close to the template has first curb plate, is provided with the bar groove that corresponds with the screw hole on the terminal surface of channel-section steel crossbeam, the position that first curb plate and first draw-in groove correspond is provided with the constant head tank, the constant head tank is pegged graft between the first draw-in groove of adjacent a pair of second curb plate, the length in bar groove is greater than the distance between the adjacent screw hole, and fastening bolt is installed in the fastening grafting in the inner chamber of bar groove and screw hole.
Preferably, the inverted arrow block is inserted into the arrow groove on the lower layer, the forward arrow block is inserted into the arrow groove on the upper layer, the arrow groove is V-shaped, and the inverted arrow block and the forward arrow block fixedly clamp the adjacent tips.
Preferably, a plurality of sets of sleeve rods which are linearly distributed are arranged on the supporting plate, a hinged support is arranged at the lower end of the rotating rod, the hinged support is rotatably arranged on the sleeve rods, a telescopic rod is inserted at the upper end of the rotating rod in a sliding mode, a pair of guide rails which are symmetrical in the front-back mode is arranged at the upper end of the rotating rod, a sliding block which is inserted in an inner cavity of the guide rails in a sliding mode is arranged at the lower end of the telescopic rod, a pull rod is inserted at the lower end of the sliding block in a inserting mode, and the lower end of the pull rod is rotatably arranged at the lower end of the guide rails in a threaded mode.
Preferably, the lower extreme of channel-section steel crossbeam is provided with the extension piece that the multiunit and the second side board dislocation of linear distribution distribute, run through on the extension piece and be provided with the pinhole, the upper end tip of telescopic link is provided with the intubate, and the lower extreme of telescopic link is provided with the spring, the spring pressfitting is between telescopic link and bull stick, the inner chamber and the pinhole coincidence of intubate, run through in the inner chamber of intubate and pinhole and peg graft there is the bolt pole.
Preferably, the upper ends of the templates are provided with second clamping grooves, the lower end of the top beam is provided with a clamping groove which is concave upwards, the side walls of the clamping grooves are inserted into a pair of second clamping grooves between adjacent templates, the upper end of the top beam is covered with a layer of waterproof cloth, and pressing blocks which are linearly distributed are pressed at the position where the upper end of the waterproof cloth is overlapped with the top beam and the templates.
Preferably, four sides of the waterproof cloth are vertically turned downwards, an opening is formed in the position, corresponding to the clamping groove, of the side where the waterproof cloth is turned, a limiting block is arranged in the clamping groove, one side of the limiting block abuts against the second side plate, and a through hole is transversely formed in the limiting block in a penetrating mode.
Preferably, a guide hole is formed in the position, corresponding to the through hole, of the adjacent second side plate in a superposed mode, an upper anchor is inserted into the through hole and the guide hole, and the upper anchor penetrates through the opening of the waterproof cloth and is driven into the side wall of the upper end of the foundation pit.
Compared with the prior art, the invention has the beneficial effects that:
1. the side plates are matched with the clamping grooves, so that fastening assembly among a plurality of groups of templates is realized, connection of the lower ends of adjacent templates is realized through matching of the arrow head blocks and the arrow head grooves, connection of the upper ends is realized through clamping of the top beams, and further position fixing among the adjacent templates is realized through the channel steel cross beams, so that the purpose of convenient assembly is achieved;
2. according to the invention, the angle-adjustable telescopic rod is matched with the rotating rod to realize inclined support of the channel steel beam, so that the support front end of the side wall is greatly enhanced, and the fastening of the upper anchor in the top beam to the waterproof cloth is matched, so that the waterproof cloth is prevented from falling off.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the assembled composite board of the present invention;
FIG. 3 is a schematic perspective view of the template of the present invention;
FIG. 4 is a schematic perspective view of a channel beam according to the present invention;
FIG. 5 is a schematic perspective view of a support bar according to the present invention;
FIG. 6 is a perspective view of the cap of the present invention
FIG. 7 is an enlarged view of the structure at A in FIG. 5;
fig. 8 is a schematic perspective view of the supporting plate of the present invention.
In the figure: 1. a protective frame; 2. a template; 3. a channel steel beam; 4. a top beam; 5. briquetting; 6. waterproof cloth; 7. anchoring the bolts; 8. a support plate; 9. a tip; 10. anchoring the ground nail; 11. fastening screws; 12. a rotating rod; 13. a telescopic rod; 14. a latch rod; 15. an arrow head groove; 16. a first side plate; 17. a second side plate; 18. a positive arrow block; 19. screw holes; 20. a first card slot; 21. an inverted arrow head block; 22. a strip-shaped groove; 23. positioning a groove; 24. an extension block; 25. a pin hole; 26. a second card slot; 27. a guide hole; 28. a limiting block; 29. a clamping groove; 30. a through hole; 31. hinging seat; 32. a spring; 33. a guide rail; 34. a slider; 35. a pull rod; 36. inserting a tube; 37. a loop bar.
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 to 8, the present invention provides a technical solution:
the utility model provides a foundation ditch lateral wall is prevented collapsing and is used protective structure, includes protective frame 1, protective frame 1 comprises a pair of compoboard and waterproof cloth 6 of bilateral symmetry, and the compoboard is formed by the assembly of the multiunit template 2 of linear distribution, connects through three channel-section steel crossbeams 3 of group of horizontal block between the multiunit template 2 of linear vertical distribution, and the lower extreme of template 2 is provided with the tip 9 of pegging graft in the foundation ditch bottom, realizes the vertical linear arrangement of multiunit template 2 in the foundation ditch bottom through tip 9.
The vertical symmetry in inboard of template 2 is provided with a pair of second curb plate 17, the position that corresponds with channel-section steel crossbeam 3 on the second curb plate 17 is provided with a pair of first draw-in groove 20 that distributes from top to bottom, channel-section steel crossbeam 3 has first curb plate 16 near one side welding of template 2, first curb plate 16 is provided with constant head tank 23 with the position that first draw-in groove 20 corresponds, constant head tank 23 is pegged graft between the first draw-in groove 20 of adjacent a pair of second curb plate 17, utilize grafting between first draw-in groove 20 and the constant head tank 23, realize channel-section steel crossbeam 3's location installation, thereby utilize channel-section steel crossbeam 3 to realize closely laminating between the multiunit template 2 of linear arrangement.
Through fastening screw 11 fixed connection between 2 and the channel-section steel crossbeam 3 of template, be provided with screw hole 19 between a pair of first draw-in groove 20 of longitudinal symmetry, be provided with the bar groove 22 that corresponds with screw hole 19 on the terminal surface of channel-section steel crossbeam 3, the length of bar groove 22 is greater than the distance between the adjacent screw hole 19, fastening screw 11 is installed in the fastening grafting in bar groove 22 and the inner chamber of screw hole 19, utilize the position of bar groove 22 adaptation screw hole 19, realize the fixed connection between 2 and the channel-section steel crossbeam 3 of template through fastening screw 11.
The upper ends of a pair of bilaterally symmetrical combination plates are connected through a top beam 4 in linear distribution, the top beam 4 is fastened and pressed on a pair of templates 2 in bilateral symmetry, the upper end of the top beam 4 is provided with a waterproof cloth 6, the side edges of the waterproof cloth 6 are fastened on the top beam 4, the upper ends of the templates 2 are provided with second clamping grooves 26, the lower end of the top beam 4 is provided with a clamping groove 29 which is sunken upwards, the side wall of the clamping groove 29 is inserted into the pair of second clamping grooves 26 between the adjacent templates 2, the upper end of the top beam 4 is covered with a layer of waterproof cloth 6, the upper end of the waterproof cloth 6 is pressed with a pressing block 5 in linear distribution with the top beam 4 and the position where the templates 2 coincide, the clamping groove 29 is used for clamping the adjacent second side plates 17, clamping and fastening of the upper ends between the adjacent templates 2 are realized, and the pressing and fastening installation of the waterproof cloth 6 are realized by using the pressing block 5.
Four sides of the waterproof cloth 6 are vertically downwards turned, an opening is formed in the position, corresponding to the clamping groove 29, of the turned side of the waterproof cloth 6, a limiting block 28 is arranged in the clamping groove 29, one side of the limiting block 28 abuts against the second side plate 17, a through hole 30 penetrates through the limiting block 28 in the transverse direction, a guide hole 27 is formed in the adjacent second side plate 17 corresponding to the through hole 30 in the overlapping mode, an upper anchor 7 is inserted into the through hole 30 and the guide hole 27, the upper anchor 7 penetrates through the opening of the waterproof cloth 6 and is driven into the upper end side wall of the foundation pit, transverse sliding of the top beam 4 is limited by the limiting block 28, fastening connection between the upper end of the template 2 and the side wall of the foundation pit is achieved through the upper anchor 7, position limitation of the side wall of the waterproof cloth 6 is achieved while the upper anchor 7 is driven into the side wall, and the waterproof cloth 6 is prevented from falling off due to weather such as strong wind.
A pair of combined arrow grooves 15 which are symmetrical up and down are formed in the pointed ends 9 which are attached to each other between the adjacent templates 2, a positive arrow block 18 and a negative arrow block 21 are respectively inserted into the arrow grooves 15 which are symmetrical up and down, the negative arrow block 21 is inserted into the arrow grooves 15 on the lower layer, the positive arrow block 18 is inserted into the arrow grooves 15 on the upper layer, the arrow grooves 15 are V-shaped, the negative arrow block 21 and the positive arrow block 18 fixedly clamp the adjacent pointed ends 9, and the clamping and fastening of the adjacent pointed ends 9 are realized through the insertion of the negative arrow block 21 and the positive arrow block 18 in the arrow grooves 15, so that the purpose of limiting the lower end positions of the adjacent templates 2 is achieved, and the accuracy of the arrangement and distribution of the templates 2 is ensured.
One side of positive arrow block 18 is provided with lower anchor 10 of pegging graft at the foundation ditch lateral wall, the inboard of positive arrow block 18 is provided with backup pad 8, it installs bull stick 12 to rotate on the backup pad 8, be provided with the multiunit loop bar 37 of linear distribution on the backup pad 8, the lower extreme of bull stick 12 is provided with free bearing 31, free bearing 31 rotates and installs on loop bar 37, cooperation through free bearing 31 and loop bar 37, realize the rotation installation of bull stick 12, utilize anchor 10 down to realize the fastening grafting of template 2 lower extreme, upper silt buries downwards when taking place to fall down at the foundation ditch lateral wall simultaneously, it is more firm to make anchor 10 peg graft down, it strengthens to correspond the support intensity of backup pad 8 and strutting arrangement to template 2.
The lower extreme of channel-section steel crossbeam 3 is provided with the extension piece 24 that the multiunit of linear distribution and second curb plate 17 dislocation were distributed, it is provided with pinhole 25 to run through on the extension piece 24, the upper end tip of telescopic link 13 is provided with intubate 36, the lower extreme of telescopic link 13 is provided with spring 32, spring 32 pressfitting is between telescopic link 13 and bull stick 12, the inner chamber and the pinhole 25 coincidence of intubate 36, it has bolt pole 14 to run through the grafting in the inner chamber of intubate 36 and pinhole 25, utilize bolt pole 14 to realize being connected of intubate 36 and channel-section steel crossbeam 3, thereby make telescopic link 13, the strutting arrangement slope support that bull stick 12 and backup pad 8 are constituteed is at the lower extreme of channel-section steel crossbeam 3, thereby the extruded support intensity of template 2 slope has been strengthened.
The working principle is as follows: in the installation, at first realize the preliminary fixed of multiunit template 2 in the vertical linear arrangement of foundation ditch bottom through tip 9, foundation ditch bottom is nailed into to the lower extreme of tip 9 this moment, arrow point groove 15 exposes in the upper end of foundation ditch bottom surface, utilize grafting between first draw-in groove 20 and the constant head tank 23, realize channel-section steel crossbeam 3's location installation, thereby utilize channel-section steel crossbeam 3 to realize closely laminating between the multiunit template 2 of linear arrangement, utilize the grafting of falling arrow point piece 21 in arrow point groove 15, the realization is fastened to the centre gripping of adjacent tip 9, thereby reach the purpose of injecing 2 lower extreme positions of adjacent template, ensure the accuracy that template 2 arranged and distribute, utilize centre gripping groove 29 to the centre gripping of adjacent second curb plate 17, realize the centre gripping fastening of upper end between the adjacent template 2.
Then, utilize the position of bar groove 22 adaptation screw hole 19, realize the fixed connection between template 2 and the channel-section steel crossbeam 3 through fastening screw 11, utilize stopper 28 to inject the lateral sliding of back timber 4, utilize briquetting 5 to realize carrying out pressfitting fastening installation to waterproof cloth 6, anchor 7 in transversely nailing, realize the fastening connection of template 2 upper end and foundation ditch lateral wall through last anchor 7, realize the position of waterproof cloth 6 lateral wall and inject when last anchor 7 is nailed in, prevent weather such as strong wind from causing droing of waterproof cloth 6.
The combined side wall formed by combination is wholly hammered downwards, so that the inverted arrow block 21 is immersed into the bottom of the foundation pit, the positive arrow block 18 is inserted at the moment, in the inserting process, the lower anchor 10 is utilized to realize fastening inserting of the lower end of the template 2, the support plate 8 is pressed at the bottom of the foundation pit, and the assembled convenient installation of the combined side wall is realized.
Cooperation through free bearing 31 and loop bar 37, realize the rotation installation of bull stick 12, utilize the slip of slider 34 on guide rail 33, inject the vertical slip of telescopic link 13, prevent that telescopic link 13 from rotating and causing the skew of intubate 36, thread tightening through pull rod 35, the realization is fastened flexible length adjustment, utilize bolt pole 14 to realize being connected of intubate 36 and channel-section steel crossbeam 3, thereby make telescopic link 13, the strutting arrangement slope support that bull stick 12 and backup pad 8 are constituteed is at the lower extreme of channel-section steel crossbeam 3, thereby the support intensity of template 2 slope extrusion has been strengthened, upper silt buries downwards when taking place the landing to topple over at the foundation ditch lateral wall simultaneously, make anchor 10 peg graft more fastening down, it strengthens to correspond the support intensity of backup pad 8 and strutting arrangement to template 2 to make.
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 (9)
1. The utility model provides a foundation ditch lateral wall is prevented collapsing and is used protective structure, includes protection frame (1), its characterized in that: the protective frame (1) is composed of a pair of bilaterally symmetrical combination plates and rainproof cloth (6), the combination plates are assembled by a plurality of groups of templates (2) which are linearly distributed, the upper ends of the pair of bilaterally symmetrical combination plates are connected through top beams (4) which are linearly distributed, the plurality of groups of templates (2) which are linearly and vertically distributed are connected through three groups of channel steel beams (3) which are transversely clamped, the templates (2) and the channel steel beams (3) are fixedly connected through fastening screws (11), the lower ends of the templates (2) are provided with tips (9) which are inserted at the bottom of a foundation pit, a pair of vertically symmetrical combined arrow grooves (15) are arranged on the tips (9) which are mutually attached between the adjacent templates (2), a pair of vertically symmetrical arrow blocks (18) and inverted arrow blocks (21) are respectively inserted in the pair of vertically symmetrical arrow grooves (15), one side of each arrow block (18) is provided with a lower anchor (10) which is inserted at the side wall, the inner side of the positive arrow head block (18) is provided with a supporting plate (8), the supporting plate (8) is rotatably provided with a rotating rod (12), the rotating rod (12) is provided with a telescopic rod (13) which is adjustable in length and supports the outer wall of the lower end of the channel steel cross beam (3), the top beam (4) is fastened and pressed on the pair of templates (2) in bilateral symmetry, the upper end of the top beam (4) is provided with a piece of waterproof cloth (6), and the side edge of the waterproof cloth (6) is fastened on the top beam (4).
2. The foundation pit side wall collapse prevention protective structure according to claim 1, wherein: the inner side of the template (2) is vertically and symmetrically provided with a pair of second side plates (17), a pair of first clamping grooves (20) which are distributed up and down are arranged on the second side plates (17) corresponding to the channel steel cross beam (3), and screw holes (19) are arranged between the pair of first clamping grooves (20) which are symmetrical up and down.
3. The foundation pit side wall collapse prevention protective structure according to claim 2, wherein: one side welding that channel-section steel crossbeam (3) is close to template (2) has first curb plate (16), is provided with strip groove (22) that correspond with screw hole (19) on the terminal surface of channel-section steel crossbeam (3), the position that first curb plate (16) and first draw-in groove (20) correspond is provided with constant head tank (23), peg graft between first draw-in groove (20) of adjacent a pair of second curb plate (17) constant head tank (23), the length of strip groove (22) is greater than the distance between adjacent screw hole (19), and fastening peg graft in the inner chamber of strip groove (22) and screw hole (19) installs fastening screw (11).
4. The foundation pit side wall collapse prevention protective structure according to claim 1, wherein: the inverted arrow block (21) is inserted into the arrow groove (15) on the lower layer, the positive arrow block (18) is inserted into the arrow groove (15) on the upper layer, the arrow groove (15) is V-shaped, and the inverted arrow block (21) and the positive arrow block (18) fixedly clamp the adjacent tips (9).
5. The foundation pit side wall collapse prevention protective structure according to claim 1, wherein: the support plate (8) is provided with a plurality of groups of sleeve rods (37) which are linearly distributed, the lower end of the rotating rod (12) is provided with a hinged support (31), the hinged support (31) is rotatably installed on the sleeve rods (37), the upper end of the rotating rod (12) is slidably inserted with a telescopic rod (13), the upper end of the rotating rod (12) is provided with a pair of guide rails (33) which are symmetrical in the front and back direction, the lower end of the telescopic rod (13) is provided with a sliding block (34) which is slidably inserted in the inner cavity of the guide rails (33), the lower end of the sliding block (34) is inserted with a pull rod (35), and the lower end of the pull rod (35) is rotatably installed at the lower end of the guide rails (33) through threads.
6. The foundation pit side wall collapse prevention protective structure according to claim 1, wherein: the lower end of the channel steel beam (3) is provided with a plurality of groups of linearly distributed extension blocks (24) which are staggered with the second side plate (17), pin holes (25) are formed in the extension blocks (24) in a penetrating mode, an insertion tube (36) is arranged at the end portion of the upper end of the telescopic rod (13), a spring (32) is arranged at the lower end of the telescopic rod (13), the spring (32) is pressed between the telescopic rod (13) and the rotating rod (12), the inner cavity of the insertion tube (36) is overlapped with the pin holes (25), and the insertion tube (36) and the inner cavity of the pin holes (25) are penetrated and inserted with the pin rod (14).
7. The foundation pit side wall collapse prevention protective structure according to claim 1, wherein: the upper end of template (2) is provided with second draw-in groove (26), the lower extreme of back timber (4) is provided with the clamping groove (29) of upwards sunken, peg graft in a pair of second draw-in groove (26) between adjacent template (2) the lateral wall of clamping groove (29), the upper end of back timber (4) covers has one deck waterproof cloth (6), the position pressfitting of the upper end of waterproof cloth (6) and back timber (4), template (2) coincidence has linearly distributed briquetting (5).
8. The foundation pit side wall collapse prevention protective structure according to claim 7, wherein: four sides of the waterproof cloth (6) are vertically downwards turned, an opening is formed in the position, corresponding to the clamping groove (29), of the turned side of the waterproof cloth (6), a limiting block (28) is arranged in the clamping groove (29), one side of the limiting block (28) is abutted to the second side plate (17), and a through hole (30) transversely penetrates through the limiting block (28).
9. The foundation pit side wall collapse prevention protective structure according to claim 8, wherein: and a guide hole (27) is formed in the position, corresponding to the through hole (30), of the adjacent second side plate (17) in a superposition mode, an upper anchor (7) is inserted into the through hole (30) and the guide hole (27), and the upper anchor (7) penetrates through an opening of the waterproof cloth (6) and is driven into the side wall of the upper end of the foundation pit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110991507.8A CN113529747B (en) | 2021-08-27 | 2021-08-27 | Foundation ditch lateral wall is prevented collapsing and is used protective structure |
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| CN202110991507.8A CN113529747B (en) | 2021-08-27 | 2021-08-27 | Foundation ditch lateral wall is prevented collapsing and is used protective structure |
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| CN113529747B CN113529747B (en) | 2022-10-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114808939A (en) * | 2022-05-25 | 2022-07-29 | 汇绿园林建设发展有限公司 | Bored concrete pile for basement excavation and maintenance and construction method thereof |
| CN115030176A (en) * | 2022-06-10 | 2022-09-09 | 成都建工第三建筑工程有限公司 | Symmetric nailing device for underground space extension |
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| CN115030176A (en) * | 2022-06-10 | 2022-09-09 | 成都建工第三建筑工程有限公司 | Symmetric nailing device for underground space extension |
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