CN115434332B - Building construction safety protection foundation pit and protection method thereof - Google Patents
Building construction safety protection foundation pit and protection method thereof Download PDFInfo
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- CN115434332B CN115434332B CN202211187594.2A CN202211187594A CN115434332B CN 115434332 B CN115434332 B CN 115434332B CN 202211187594 A CN202211187594 A CN 202211187594A CN 115434332 B CN115434332 B CN 115434332B
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- 238000009435 building construction Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 26
- 230000007306 turnover Effects 0.000 claims abstract description 77
- 230000009471 action Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention belongs to the technical field of foundation pit support, in particular to a building construction safety protection foundation pit, which comprises a foundation pit body, a support plate with a square structure, a first turnover support rod, a movable seat, a second turnover support rod, an L-shaped base, a movable plate and a third turnover support rod, wherein the support plate is a square structure; the support plate is arranged on the inner wall of the foundation pit body, the movable plate is slidably arranged on the horizontal part of the L-shaped base, one end of the third overturning supporting rod is hinged with the movable plate, and the other end of the third overturning supporting rod is hinged with the support plate; according to the protection foundation pit structure, aiming at foundation pits with different depths, different numbers of support plates can be selected for combined use, positioning and splicing of the support plates are realized by utilizing the matching of the splicing grooves and the splicing blocks, and the stability of the support plate combination and the support foundation pit is further improved by utilizing the matching of the turnover support plates and the first turnover support rods; and the third overturning supporting rod is used for supporting the support plate positioned at the lowest layer, so that the overall stability of the support plate is improved.
Description
Technical Field
The invention belongs to the technical field of foundation pit support, and particularly relates to a building construction safety protection foundation pit and a protection method of the building construction safety protection foundation pit.
Background
The foundation pit is a soil pit excavated at a foundation design position according to the elevation of a substrate and the plane size of the foundation, an excavation scheme is determined according to geological hydrologic data and the condition of buildings nearby the site before excavation, and waterproof and drainage work is performed; the method of releasing the slope can be used by the person with non-deep excavation to stabilize the soil slope, and the slope size is determined according to relevant construction regulations; the method can be used for protecting the wall of a foundation pit by a foundation pit wall supporting method and a concrete spraying wall protecting method, and even a large foundation pit adopts methods of underground continuous walls, column type bored piles and the like to be interlocked so as to protect the collapse of an outer soil layer; the underground water level can be reduced by using a well point method without influencing the nearby buildings, and slope-releasing open cut is adopted; natural cold air freezing method can be adopted for excavation in cold areas, etc.
The foundation pit support is used for guaranteeing the safety of underground structure construction and surrounding environment of the foundation pit, and is used for supporting, reinforcing and protecting the side wall of the foundation pit and the surrounding environment.
In a generally conventional manner, the support panels are typically erected at the edges of the foundation pit so that the support panels tend to topple over when subjected to pressure from the soil surrounding the foundation pit, resulting in collapse of the foundation pit.
At present, china patent application number 202022768689.6 discloses a foundation pit supporting device capable of effectively preventing a foundation pit from collapsing, and the upper part, the middle part and the lower part of the side end face of a foundation pit supporting plate are supported by supporting rods through a plurality of supporting plate supporting structures arranged on one side of the foundation pit supporting plate, so that the compressive strength of the foundation pit supporting plate is increased, and the foundation pit is prevented from collapsing.
However, the foregoing solution cannot be adapted to use foundation pits with different depths, and the limitation of using the same set of support plates with different specifications is relatively large.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a building construction safety protection foundation pit and a protection method thereof, and the building construction safety protection foundation pit has the characteristics of convenient use, easy splicing and wide application range.
In order to achieve the above purpose, the present invention provides the following technical solutions: the building construction safety protection foundation pit comprises a foundation pit body, and further comprises a support plate with a square structure, a first turnover support rod, a movable seat, a second turnover support rod, an L-shaped base, a movable plate and a third turnover support rod;
the support plate is arranged on the inner wall of the foundation pit body, the L-shaped base is fixed on the inner bottom surface of the foundation pit body, the movable plate is slidably arranged on the horizontal part of the L-shaped base, one end of the third overturning support rod is hinged with the movable plate, and the other end of the third overturning support rod is hinged with the support plate;
Splice blocks are fixed on two adjacent side surfaces of the support plate, splice grooves capable of accommodating the splice blocks are formed in the other two adjacent side surfaces, and reserved bolt holes are formed in the splice grooves and the splice blocks;
The support plate is hinged with a turnover support plate, the movable seat is arranged on the support plate and has a degree of freedom of movement along the vertical direction, one end of the second turnover support rod is hinged with the movable seat, the other end of the second turnover support rod is hinged with the turnover support plate, and the bottom end of the first turnover support rod is hinged with the turnover support plate, and the top end of the first turnover support rod is hinged with the support plate above the turnover support plate.
As a preferable technical scheme of the invention, the invention further comprises a second threaded column, wherein the second threaded column is arranged on the vertical part of the L-shaped base in a threaded screwing mode, and the second threaded column penetrates through the vertical part of the L-shaped base and is rotationally connected with the movable plate through a bearing.
As a preferable technical scheme of the invention, a second knob is fixed at one end of the second threaded column far away from the movable plate.
As a preferable technical scheme of the invention, the invention further comprises a first thread column, two fixing plates which are distributed at intervals are fixed on the support plate, the first thread column is arranged between the two fixing plates along the vertical direction through a bearing support, and the first thread column penetrates through the movable seat and is connected with the movable seat in a thread screwing mode.
As a preferable technical scheme of the invention, a guide rod penetrating through the movable seat is also fixed between the two fixed plates.
As a preferable technical scheme of the invention, a first knob is fixed at the bottom end of the first threaded column.
As a preferable technical scheme of the invention, the novel turnover support plate further comprises a long bolt and a positive hexagonal nut, wherein a first perforated lug plate is fixed on the turnover support plate and the support plate, the long bolt penetrates through the first turnover support rod and the corresponding first perforated lug plate, and the positive hexagonal nut is arranged on the extending end of the first long bolt in a threaded screwing mode.
As a preferable technical scheme of the invention, the novel support plate further comprises a second long bolt and a second regular hexagonal nut, the second perforated lug plate is further fixed on the support plate, the second long bolt penetrates through the third overturning support rod and the second perforated lug plate, and the second regular hexagonal nut is arranged on the extending end of the second long bolt in a threaded screwing mode.
As a preferable technical scheme of the invention, the first turnover supporting rod and the third turnover supporting rod are symmetrically distributed.
A protection method for protecting a foundation pit by utilizing a building construction safety protection foundation pit comprises the following steps:
Step one: selecting proper number of support plates, a first turnover support rod and a third turnover support rod according to the depth and the total length of the foundation pit body;
Step two: firstly, the support plate at the lowest layer is installed and fixed until the inner wall of the foundation pit body is provided with a circle of support plates, and the concrete process is as follows: placing a support plate on the inner bottom surface of the foundation pit body and tightly attaching the support plate to the inner wall of the foundation pit body, fixing an L-shaped base at the position of the inner bottom surface of the foundation pit body corresponding to the support plate, rotating a second threaded column to properly adjust the position of the movable plate under the action of threaded screwing until the end part of a third overturning supporting rod is reliably corresponding to a second perforated lug plate, penetrating a second long bolt through the second perforated lug plate Kong Er and the third overturning supporting rod, and screwing a second regular hexagonal nut on the extending end of the second long bolt;
step three: rotating the second threaded column to push the movable plate to move under the action of threaded rotation, wherein the movable plate drives the third overturning supporting rod to overturn and move, and the third overturning supporting rod is used for propping up the supporting plate;
Step four: the second layer of support plates are installed and fixed, the splicing blocks are embedded into the corresponding splicing grooves and are fastened by penetrating through the reserved bolt holes through bolts, the first threaded column is rotated to properly adjust the inclination angle of the turnover support plates under the action of threaded screwing until the two ends of the first turnover support rods are respectively and reliably corresponding to the corresponding first perforated lug plates, the first long bolts penetrate through the first perforated lug plates Kong Er and the first turnover support rods, and a first positive hexagonal nut is screwed on the extending ends of the first long bolts;
Step five: the first threaded column is rotated to drive the movable seat to move upwards under the action of threaded rotation, the movable seat drives the second overturning supporting rod to overturn and move, the overturning supporting plate overturns upwards, and meanwhile the first overturning supporting rod is pushed to abut against the second layer supporting plate;
Step six: and (3) repeating the step four and the step five to realize the installation and fixation of the subsequent layer number support plates.
Compared with the prior art, the invention has the beneficial effects that: according to the protection foundation pit structure, aiming at foundation pits with different depths, different numbers of support plates can be selected for combined use, positioning and splicing of the support plates are realized by utilizing the matching of the splicing grooves and the splicing blocks, and the stability of the support plate combination and the support foundation pit is further improved by utilizing the matching of the turnover support plates and the first turnover support rods; and the third overturning supporting rod is used for supporting the support plate positioned at the lowest layer, so that the overall stability of the support plate is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the invention at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of the present invention at B in FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1 according to the present invention;
In the figure: 1. a foundation pit body; 2. a support plate; 3. a splice groove; 4. splicing blocks; 5. reserving a bolt hole; 6. turning over the supporting plate; 7. a first ear plate with holes; 8. a first long bolt; 9. a first positive hexagonal nut; 10. a first overturning supporting rod; 11. a movable seat; 12. a fixing plate; 13. a second overturning supporting rod; 14. a first threaded column; 15. a first knob; 16. a guide rod; 17. an L-shaped base; 18. a movable plate; 19. a third overturning supporting rod; 20. a second thread column; 21. a second knob; 22. a second ear plate with holes; 23. a second long bolt; 24. and a second positive hexagonal nut.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: the building construction safety protection foundation pit comprises a foundation pit body 1, and further comprises a support plate 2, a first turnover supporting rod 10, a movable seat 11, a second turnover supporting rod 13, an L-shaped base 17, a movable plate 18 and a third turnover supporting rod 19 which are of square structures;
In the present embodiment, as shown in fig. 1 and 3, the support plate 2 is disposed on the inner wall of the foundation pit body 1, the L-shaped base 17 is fixed on the inner bottom surface of the foundation pit body 1, the movable plate 18 is slidably mounted on the horizontal portion of the L-shaped base 17, one end of the third turning support rod 19 is hinged with the movable plate 18, and the other end is hinged with the support plate 2, so that the support plate 2 at the lowest displacement layer is supported by the cooperation of the L-shaped base 17 and the third turning support rod 19;
In this embodiment, as shown in fig. 1, two adjacent side surfaces of the support plate 2 are fixed with splice blocks 4, two other adjacent side surfaces are provided with splice grooves 3 capable of accommodating the splice blocks 4, reserved bolt holes 5 are formed in the splice grooves 3 and on the splice blocks 4, the splice blocks 4 are matched with the splice grooves 3, positioning and splicing of the adjacent support plate 2 are realized, and the stability of the support plate 2 after splicing can be further improved by rotating bolts of corresponding specifications in the reserved bolt holes 5;
in this embodiment, as shown in fig. 1 and fig. 2, a turnover support plate 6 is hinged on a support plate 2, a movable seat 11 is mounted on the support plate 2 and has a degree of freedom of movement along a vertical direction, one end of a second turnover support rod 13 is hinged with the movable seat 11, the other end of the second turnover support rod is hinged with the turnover support plate 6, the bottom end of a first turnover support rod 10 is hinged with the turnover support plate 6, the top end of the first turnover support rod is hinged with the support plate 2 positioned above, and after the splicing of two adjacent support plates 2 in the vertical direction is completed, the turnover support plate 6 is pushed to turn upwards by the second turnover support rod 13, and the turnover support plate 6 drives the first turnover support rod 10 to prop against the support plate 2 on the upper side.
As an alternative embodiment, as shown in fig. 1 and fig. 3, the present embodiment further includes a second threaded column 20, where the second threaded column 20 is installed on the vertical portion of the L-shaped base 17 by a threaded screwing manner, and the second threaded column 20 penetrates through the vertical portion of the L-shaped base 17 and is rotationally connected with the movable plate 18 through a bearing; and a second knob 21 is fixed at one end of the second threaded column 20 far away from the movable plate 18, the second threaded column 20 can be rotated by using the second knob 21, the movable plate 18 is driven to move under the action of threaded rotation, the third turnover support rod 19 is pushed by the movable plate 18 to move, and the third turnover support rod 19 can be abutted against the support plate 2.
As an alternative embodiment, as shown in fig. 1 and fig. 2, the present embodiment further includes a first threaded column 14, two fixing plates 12 are fixed on the support plate 2 at intervals, the first threaded column 14 is installed between the two fixing plates 12 along the vertical direction through a bearing support, and the first threaded column 14 penetrates through the movable seat 11 and is connected with the movable seat 11 through a threaded screwing manner; the bottom end of the first threaded column 14 is fixedly provided with a first knob 15, the first threaded column 14 can be driven to rotate by rotating the first knob 15, the movable seat 11 moves in the vertical direction under the action of the threaded rotation, when the movable seat 11 moves upwards, the second turnover supporting rod 13 can be driven to move upwards, the second turnover supporting rod 13 pushes the turnover supporting plate 6 to turn upwards, and the turnover supporting plate 6 drives the first turnover supporting rod 10 to prop against the support plate 2 on the upper side.
As an alternative embodiment, as shown in fig. 1 and fig. 2, a guide rod 16 penetrating the movable seat 11 is further fixed between the two fixed plates 12 in this embodiment, so as to further improve the stability of the movable seat 11.
As shown in fig. 1 and fig. 2, in this embodiment, a long bolt 8 and a positive hexagonal nut 9 are further included, a perforated lug 7 is fixed on the turnover support plate 6 and the support plate 2, the long bolt 8 penetrates through a turnover support rod 10 and the corresponding perforated lug 7, and the positive hexagonal nut 9 is installed on the extending end of the long bolt 8 in a threaded screwing mode, so that the installation of the turnover support rod 10 is realized.
As shown in fig. 1 and 4, as an alternative embodiment, the support plate 2 further comprises a second long bolt 23 and a second regular hexagonal nut 24, a second lug plate 22 with holes is fixed on the support plate 2, the second long bolt 23 penetrates the third overturning supporting rod 19 and the second perforated lug 22, and the second positive hexagonal nut 24 is arranged on the extending end of the second long bolt 23 in a threaded screwing mode, so that the hinged connection of the third overturning supporting rod 19 and the supporting plate 2 is realized.
As an alternative embodiment, as shown in fig. 1, in this embodiment, the first turning support rod 10 and the third turning support rod 19 are symmetrically distributed in two, so that the stability is good.
A protection method for protecting a foundation pit by utilizing a building construction safety protection foundation pit comprises the following steps:
step one: according to the depth and the total length of the foundation pit body 1, a proper number of support plates 2, a first turnover supporting rod 10 and a third turnover supporting rod 19 are selected;
Step two: firstly, the support plate 2 at the lowest layer is installed and fixed until the inner wall of the foundation pit body 1 is provided with a circle of support plate 2, and the concrete process is as follows: placing the support plate 2 on the inner bottom surface of the foundation pit body 1 and tightly attaching the support plate 2 to the inner wall of the foundation pit body 1, fixing the L-shaped base 17 at the position of the inner bottom surface of the foundation pit body 1 corresponding to the support plate 2, rotating the second threaded column 20 to properly adjust the position of the movable plate 18 under the action of the threaded screwing until the end part of the third overturning supporting rod 19 reliably corresponds to the second belt Kong Er plate 22, penetrating the second long bolt 23 through the second perforated lug 22 and the third overturning supporting rod 19, and screwing and installing a second positive hexagonal nut 24 on the extending end of the second long bolt 23;
Step three: the second threaded column 20 is rotated to push the movable plate 18 to move under the action of threaded rotation, the movable plate 18 drives the third turnover supporting rod 19 to turn over and move, and the third turnover supporting rod 19 is used for propping up the support plate 2;
Step four: the second layer support plate 2 is installed and fixed, the splicing block 4 is embedded into the corresponding splicing groove 3 and is fastened by penetrating through the reserved bolt hole 5 through bolts, the first threaded column 14 is rotated to properly adjust the inclination angle of the turnover support plate 6 under the action of threaded screwing until the two ends of the first turnover support rod 10 are respectively and reliably corresponding to the corresponding first belt Kong Er plate 7, the first long bolt 8 penetrates through the first belt Kong Er plate 7 and the first turnover support rod 10, and the first positive hexagonal nut 9 is screwed on the extending end of the first long bolt 8;
Step five: the first threaded column 14 is rotated to drive the movable seat 11 to move upwards under the action of threaded rotation, the movable seat 11 drives the second turnover support rod 13 to turn and move, the turnover support plate 6 turns upwards, and meanwhile the first turnover support rod 10 is pushed to abut against the second support plate 2;
Step six: and (3) repeating the step four and the step five to realize the installation and fixation of the support plate 2 with the subsequent layers.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "configured," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with the interior of two elements, the specific meaning of the terms in this invention will be understood by those of ordinary skill in the art.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a protection method of construction safety protection foundation ditch, includes foundation ditch body (1), its characterized in that: the novel multifunctional lifting device also comprises a support plate (2), a first turnover supporting rod (10), a movable seat (11), a second turnover supporting rod (13), an L-shaped base (17), a movable plate (18) and a third turnover supporting rod (19) which are of square structures;
The support plate (2) is arranged on the inner wall of the foundation pit body (1), the L-shaped base (17) is fixed on the inner bottom surface of the foundation pit body (1), the movable plate (18) is slidably arranged on the horizontal part of the L-shaped base (17), one end of the third overturning supporting rod (19) is hinged with the movable plate (18), and the other end of the third overturning supporting rod is hinged with the support plate (2);
splice blocks (4) are fixed on two adjacent side surfaces of the support plate (2), splice grooves (3) capable of accommodating the splice blocks (4) are formed in the other two adjacent side surfaces, and reserved bolt holes (5) are formed in the splice grooves (3) and in the splice blocks (4);
The support plate (2) is hinged with a turnover support plate (6), the movable seat (11) is arranged on the support plate (2) and has a degree of freedom of movement along the vertical direction, one end of the second turnover support rod (13) is hinged with the movable seat (11), the other end of the second turnover support rod is hinged with the turnover support plate (6), the bottom end of the first turnover support rod (10) is hinged with the turnover support plate (6), and the top end of the first turnover support rod is hinged with the support plate (2) above;
The support plate (2) is fixedly provided with two fixing plates (12) which are distributed at intervals, the first thread columns (14) are arranged between the two fixing plates (12) along the vertical direction through bearing support, and the first thread columns (14) penetrate through the movable seat (11) and are connected with the movable seat (11) in a thread screwing mode;
the device further comprises a second threaded column (20), the second threaded column (20) is arranged on the vertical part of the L-shaped base (17) in a threaded screwing mode, and the second threaded column (20) penetrates through the vertical part of the L-shaped base (17) and is rotationally connected with the movable plate (18) through a bearing;
a guide rod (16) penetrating through the movable seat (11) is also fixed between the two fixed plates (12);
The first turnover supporting rod (10) and the third turnover supporting rod (19) are symmetrically distributed in two;
the protection method for protecting the foundation pit comprises the following steps:
step one: according to the depth and the total length of the foundation pit body (1), a proper number of support plates (2), a first turnover supporting rod (10) and a third turnover supporting rod (19) are selected;
Step two: firstly, the support plate (2) at the lowest layer is installed and fixed until the inner wall of the foundation pit body (1) is provided with a circle of support plates (2), and the concrete process is as follows: the support plate (2) is arranged on the inner bottom surface of the foundation pit body (1) and is tightly attached to the inner wall of the foundation pit body (1), the L-shaped base (17) is fixed at the position of the inner bottom surface of the foundation pit body (1) corresponding to the support plate (2), the second threaded column (20) is rotated to properly adjust the position of the movable plate (18) under the action of threaded rotation until the end part of the third overturning support rod (19) is reliably corresponding to the second perforated lug plate (22), the second long bolt (23) penetrates through the second perforated lug plate (22) and the third overturning support rod (19), and a second positive hexagonal nut (24) is screwed on the extending end of the second long bolt (23);
Step three: the second threaded column (20) is rotated to push the movable plate (18) to move under the action of threaded rotation, the movable plate (18) drives the third overturning supporting rod (19) to overturn and move, and the third overturning supporting rod (19) is used for propping up the supporting plate (2);
Step four: the second layer support plate (2) is installed and fixed, the splicing blocks (4) are embedded into the corresponding splicing grooves (3) and are fastened by penetrating through the reserved bolt holes (5) through bolts, the first threaded columns (14) are rotated to properly adjust the inclination angle of the overturning support plates (6) under the action of threaded screwing until the two ends of the first overturning support rods (10) are respectively and reliably corresponding to the corresponding first perforated lug plates (7), the first long bolts (8) penetrate through the first perforated lug plates (7) and the first overturning support rods (10), and the first positive hexagonal nuts (9) are installed on the extending ends of the first long bolts (8) in a screwed mode;
Step five: the first threaded column (14) is rotated to drive the movable seat (11) to move upwards under the action of threaded rotation, the movable seat (11) drives the second overturning supporting rod (13) to overturn and move, the overturning supporting plate (6) overturns upwards, and meanwhile the first overturning supporting rod (10) is pushed to abut against the second layer of supporting plate (2);
step six: and (3) repeating the step four and the step five to realize the installation and fixation of the subsequent layer number support plates (2).
2. The protection method for the building construction safety protection foundation pit according to claim 1, wherein the protection method comprises the following steps: and a second knob (21) is fixed at one end of the second threaded column (20) far away from the movable plate (18).
3. The protection method for the building construction safety protection foundation pit according to claim 1, wherein the protection method comprises the following steps: a first knob (15) is fixed at the bottom end of the first threaded column (14).
4. The protection method for the building construction safety protection foundation pit according to claim 1, wherein the protection method comprises the following steps: still include a long bolt (8) and a positive hexagon nut (9) on upset backup pad (6) with all be fixed with a foraminiferous otic placode (7) on backplate (2), a long bolt (8) run through a upset bracing piece (10) and a corresponding foraminiferous otic placode (7), a positive hexagon nut (9) are installed through the screw thread mode of closing on the extension of a long bolt (8).
5. The protection method for the building construction safety protection foundation pit according to claim 1, wherein the protection method comprises the following steps: still include No. two long bolts (23) and No. two positive hexagon nuts (24) still be fixed with No. two foraminiferous otic placodes (22) on backplate (2), no. two long bolts (23) run through No. three upset bracing pieces (19) and No. two foraminiferous otic placodes (22), no. two positive hexagon nuts (24) are installed through the screw thread mode of screwing on the extension end of No. two long bolts (23).
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| CN202211187594.2A CN115434332B (en) | 2022-09-28 | 2022-09-28 | Building construction safety protection foundation pit and protection method thereof |
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| CN202211187594.2A CN115434332B (en) | 2022-09-28 | 2022-09-28 | Building construction safety protection foundation pit and protection method thereof |
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| CN115434332B true CN115434332B (en) | 2024-05-03 |
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| CN209854734U (en) * | 2019-03-21 | 2019-12-27 | 中通建工城建集团有限公司 | Foundation pit supporting device |
| CN211340805U (en) * | 2019-11-28 | 2020-08-25 | 中国电建集团华东勘测设计研究院有限公司 | Deep foundation pit internal supporting mechanism and device for building construction |
| CN212983874U (en) * | 2020-07-04 | 2021-04-16 | 常美婷 | Foundation ditch supporting device for construction |
| CN214541906U (en) * | 2021-04-20 | 2021-10-29 | 飞龙精工科技(苏州)有限公司 | Copper wire winding equipment |
| CN216075161U (en) * | 2021-11-16 | 2022-03-18 | 郭丰英 | Building engineering underground structure |
| CN216590738U (en) * | 2021-12-22 | 2022-05-24 | 中北大学 | Display screen adjusting bracket for computer |
| CN216586584U (en) * | 2021-12-30 | 2022-05-24 | 广东华固工程有限公司 | Soft soil foundation pit supporting device |
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| CN115434332A (en) | 2022-12-06 |
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