CN115467337B - Civil engineering foundation pit construction reinforcing device and reinforcing method - Google Patents
Civil engineering foundation pit construction reinforcing device and reinforcing method Download PDFInfo
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- CN115467337B CN115467337B CN202210964363.1A CN202210964363A CN115467337B CN 115467337 B CN115467337 B CN 115467337B CN 202210964363 A CN202210964363 A CN 202210964363A CN 115467337 B CN115467337 B CN 115467337B
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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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- 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 invention relates to the technical field of engineering foundation pit reinforcement, in particular to a civil engineering foundation pit construction reinforcing device and a reinforcing method. The foundation pit coaming comprises foundation pit coamings, wherein the foundation pit coamings are arranged in a foundation pit formed in the ground, a reinforcing mechanism is arranged between the foundation pit coamings and comprises a driving assembly, supporting assemblies are arranged on two sides of the driving assembly, each supporting assembly comprises a supporting plate and a pressure plate, limiting blocks are arranged on the pressure plates, the foundation pit coamings are extruded when the limiting blocks extend outwards, the angle of supporting points at the end parts of the pressure plates is forced to change when the limiting blocks move, and the pressure born by the pressure plates is dispersed. According to the invention, the pressure plate and the supporting plate form triangular supporting force, so that the reinforcement effect on the foundation pit is improved, the limiting block is tightly pressed on the surrounding plate of the foundation pit, the triangular supporting force is also formed between the limiting block and the surrounding plate of the foundation pit, the reinforcement on the surrounding plate of the foundation pit is improved, and meanwhile, the inclination change of the supporting plate is avoided.
Description
Technical Field
The invention relates to the technical field of engineering foundation pit reinforcement, in particular to a civil engineering foundation pit construction reinforcing device and a reinforcing method.
Background
The engineering foundation pit is a soil pit excavated at a foundation design position according to the elevation of the substrate and the plane size of the foundation.
In the current foundation pit opening process, along with the continuous digging depth, in order to ensure that the seepage of water flow on the side wall of the foundation pit influences the construction of the foundation pit and avoid collapse accidents caused by the large continuous digging depth, the foundation pit needs to be reinforced (for example, the foundation pit is opened by a supporting arm for a viaduct), but the current foundation pit is reinforced by arranging a steel plate on the inner wall of the foundation pit, and the steel column is arranged to support the side wall of the steel plate on the foundation pit, so that the reinforcing mode is relatively unchanged during installation and needs to consume a great amount of manpower resource cost;
and when supporting foundation ditch steel sheet through the steel column, the atress is great on the strong point that forms that steel sheet and steel column are connected, when the pressure that the strong point received is too big, because of steel sheet and steel sheet atress are uneven, will lead to the support of steel sheet and steel column to take place the slope, influences the support reinforcement to the foundation ditch.
Disclosure of Invention
The invention aims to provide a reinforcing device and a reinforcing method for building a foundation pit in civil engineering, which are used for solving the problems in the background technology.
In order to achieve the above-mentioned objective, one of the purposes of the present invention is to provide a foundation pit construction reinforcement device for civil engineering, including a foundation pit coaming, the foundation pit coaming is disposed in a foundation pit formed on the ground, a reinforcement mechanism is disposed between the foundation pit coamings, the reinforcement mechanism includes a driving assembly, both sides of the driving assembly are provided with support assemblies, the support assemblies include support plates, two ends of the support plates are provided with pressure plates for pressing the foundation pit coamings and attaching the pressure plates to the foundation pit, when the two pressure plates move relatively, and the ends contact, a large supporting force is caused to the foundation pit coamings, and a plurality of supporting points are formed between the pressure plates and the support plates, the pressure plates are provided with two limiting blocks, the limiting blocks are driven by a driving mechanism, when the limiting blocks extend outwards, the foundation pit coamings are pressed, and when the limiting blocks move, the angles of the supporting points at the ends of the pressure plates are forced to change, and the limiting blocks are forced to guide the connecting points of the pressure plates and the pressure plates to bear pressure force.
As a further improvement of the technical scheme, the driving assembly comprises a mounting plate arranged between foundation pit coamings, a reciprocating screw rod is rotatably arranged on the mounting plate, the reciprocating screw rod is driven by a double-shaft motor, and two ends of the reciprocating screw rod are in threaded connection with the supporting plate.
As a further improvement of the present technical solution, the pressure plate is connected with the driving assembly through the connecting portion, the restriction block is connected with the connecting portion, wherein:
the two limiting blocks are connected through a pressure spring, and the pressure spring is used for providing supporting force for the limiting blocks.
As a further improvement of the technical scheme, the supporting plate is provided with a groove, the driving mechanism comprises a transmission screw rod which is rotatably arranged in the groove, the transmission screw rod is driven by a transmission motor, an extension part is connected to the transmission screw rod in a threaded manner, and the extension part is arranged on the connecting part.
As a further improvement of the technical scheme, a driving limiting assembly is arranged between the mounting plate and the supporting plate, the driving limiting assembly comprises an inner limiting plate, one end of the inner limiting plate is movably connected with the mounting plate, an outer limiting plate is slidably arranged on the inner limiting plate, and the outer limiting plate is movably connected with the supporting plate.
As a further improvement of the technical proposal, the inner limiting plate and the outer limiting plate are connected through a limiting spring, and the limiting spring is used for increasing the resistance force when the outer limiting plate moves.
As a further improvement of the technical scheme, the pressure plates are provided with the through holes, limiting arms are arranged between the through holes on the two pressure plates, and extension columns for preventing the limiting arms from separating from the through holes are arranged at two ends of the limiting arms.
As a further improvement of the technical scheme, the pressure plate drives the limiting arm to move, when the limiting arm contacts with the limiting block, the limiting block is limited in movement force, and trapezoidal supports with four-corner structures are formed among the limiting block, the limiting arm and the supporting plate.
As a further improvement of the technical scheme, the limiting arm is connected with the reciprocating screw rod through a limiting arm spring.
The second object of the present invention is to provide a reinforcement method for building a reinforcement device for a foundation pit in civil engineering, according to the above description, comprising the following method steps:
step one: the method comprises the steps of installing a foundation pit coaming in a pre-opened foundation pit, and placing a reinforcing mechanism in the foundation pit to enable an installation block and the foundation pit coaming to be fixedly installed;
step two: the two support plates are driven to move relatively through the reciprocating screw rod, the pressure plates extrude the foundation pit coaming, and the ends of the two pressure plates are contacted to form larger supporting and reinforcing force for the foundation pit coaming;
step three: the limiting block is driven to extend outwards through the driving mechanism, so that the limiting block is outwards expanded and pressed on the foundation pit coaming, and along with the movement change of the limiting block, the limiting block synchronously changes the angles between the pressure plates and the supporting plate, so that the limiting block disperses the pressure born by the supporting plate, and a plurality of triangular supporting structures are formed between the pressure plates and the supporting plate and between the limiting block and the foundation pit coaming;
step four: as the pressure plate moves, the limiting arm moves, and when the pressure plate moves to a larger position, two ends of the limiting arm are forced to contact the limiting block, so that pressure locking is formed on the limiting block.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the civil engineering foundation pit building and reinforcing device and method, the coamings of the foundation pit are extruded through the movement of the pressure plate, so that the coamings of the foundation pit are attached to the foundation pit as much as possible, and the attaching and reinforcing effects of the coamings of the foundation pit are improved; and when the both ends of two pressure plates contact, form triangle holding power between pressure plate and the backup pad, the strong reinforcement power of foundation ditch bounding wall formation is formed to the strong supporting point that two pressure plate contact formed, promotes the reinforcement effect to the foundation ditch.
2. In the civil engineering foundation pit construction reinforcing device and the reinforcing method, the limiting blocks extend out to enable the limiting blocks to be tightly pressed on the side surfaces of the foundation pit coamings, triangular supporting force is formed between the limiting blocks and the foundation pit coamings, the foundation pit coamings are reinforced, meanwhile, inclination change caused to supporting of supporting plates is avoided, and the fixed supporting effect of the supporting plates is enhanced.
3. In the civil engineering foundation pit construction reinforcing device and the reinforcing method, the angle of the connecting supporting points of the two pressure plates is changed through the movement of the limiting blocks, so that the angle of the connecting supporting points is enlarged, the limiting blocks are forced to disperse the supporting force born by the pressure plates, and the limiting blocks disperse the supporting force at the two ends of the supporting plate at the same time, so that the supporting force of the device when reinforcing the foundation pit and the surrounding plate of the foundation pit is uniformly received, and the condition that the reinforcing effect is influenced by uneven stress of the reinforcing device adopted in the prior art is changed.
4. In the civil engineering foundation pit construction reinforcing device and the reinforcing method, the triangular supporting force is formed among the limiting blocks, the pressure plates and the foundation pit coamings through the movement of the limiting blocks, and according to the stability of the triangular structure, the device has higher reinforcing force on the foundation pit when being applied to the foundation pit formed in the building engineering, and the structure also has higher stability and stress uniformity.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a second schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of a reinforcement mechanism according to the present invention;
FIG. 4 is a second schematic structural view of the reinforcement mechanism of the present invention;
FIG. 5 is a cross-sectional view of a support assembly according to the present invention;
FIG. 6 is a schematic view of the structure A of FIG. 5 according to the present invention;
FIG. 7 is a cross-sectional view of a drive limiting assembly according to the present invention;
FIG. 8 is a schematic view of a restraining arm and restraining arm spring configuration of the present invention;
FIG. 9 is a schematic view of a restraining arm spring construction of the present invention;
FIG. 10 is a schematic view of the support assembly and restraining arm configuration of the present invention;
fig. 11 is a flow chart of the overall structure of the present invention.
The meaning of each reference sign in the figure is:
1. ground surface;
2. pit coaming;
3. a reinforcement mechanism;
31. a drive assembly; 311. a mounting plate; 312. a reciprocating screw rod; 313. a biaxial motor; 314. a mounting plate;
32. a support assembly; 321. a support plate; 3211. a transmission screw rod; 3212. a drive motor; 322. a pressure plate; 323. a connection part; 3231. an extension;
33. a limiting block;
34. a drive limiting assembly; 341. an inner limiting plate; 342. an outer limiting plate; 343. a limiting spring;
35. a pressure spring;
4. a restraining arm;
5. limiting arm springs.
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.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-6, the present embodiment provides a building and reinforcing device for a foundation pit in civil engineering, including a foundation pit coaming 2, where the foundation pit coaming 2 is disposed in a foundation pit formed on the ground 1, in this embodiment, the foundation pit coaming 2 is provided with a plurality of foundation pit coamings, and each foundation pit coaming 2 is respectively installed on an inner wall of a foundation pit, and the foundation pit is reinforced by attaching and installing the foundation pit coamings 2;
considering that when the single support reinforcement is carried out through the foundation pit coaming 2, the foundation pit coaming 2 cannot generate larger support reinforcement force through transverse limit support, the subsequent deep excavation of the foundation pit cannot be carried out, a reinforcement mechanism 3 is arranged between the foundation pit coamings 2, the reinforcement mechanism 3 comprises a driving component 31, both sides of the driving component 31 are provided with support components 32, the support components 32 comprise support plates 321, the two ends of the support plates 321 are provided with pressure plates 322 which are used for extruding the foundation pit coamings 2 and enabling the pressure plates to be attached to the foundation pit, when the two pressure plates 322 move relatively and the ends are contacted, larger support force is caused to the foundation pit coamings 2, a plurality of support points are formed between the pressure plates 322 and the support plates 321, two limiting blocks 33 are arranged on the pressure plate 322, the limiting blocks 33 are driven by a driving mechanism, when the limiting blocks 33 extend outwards, the foundation pit coaming 2 is extruded, the angle of a supporting point at the end part of the pressure plate 322 is forced to change when the limiting blocks 33 move, the limiting blocks 33 guide the stress of the connecting point of the pressure plate 322 and the foundation pit coaming 2, the pressure born by the pressure plate 322 is dispersed, and then, the whole reinforcing mechanism 3 is arranged in the foundation pit, after the two ends of the pressure plate 322 are contacted onto the foundation pit coaming 2, the supporting plates 321 are driven by the driving assembly 31 to move relatively, so that the pressure plate 322 firstly extrudes the foundation pit coaming 2 to be attached to the foundation pit as much as possible, and the attaching and reinforcing effects of the foundation pit coaming 2 are improved;
and as the pressure plates 322 move relatively close to each other and contact with each other, triangular supporting forces are formed between the pressure plates 322 and the supporting plates 321 (as the middle broken line in fig. 4 indicates the movement of the pressure plates 322), supporting points formed by contact of the two pressure plates 322 form larger reinforcing forces on the foundation pit coaming 2, and the reinforcing effect on the foundation pit is improved; the limiting blocks 33 are driven to extend through the driving mechanism, so that the limiting blocks 33 are tightly pressed on the side surfaces of the foundation pit coaming 2, the limiting blocks 33 are tightly pressed on the foundation pit coaming 2 through the relative movement of the limiting blocks 33, triangular supporting force is formed between the limiting blocks 33 and the foundation pit coaming 2, the reinforcement of the foundation pit coaming 2 is improved, meanwhile, the inclination change caused by the support of the support plate 321 is avoided, and the fixing and supporting effect of the support plate 321 is enhanced;
because the end parts of the two pressure plates 322 are in contact with the support, when the limiting block 33 moves, the angle of the connecting supporting points of the two pressure plates 322 is changed, the angle of the connecting supporting points is enlarged, the limiting block 33 is forced to disperse the supporting force born by the pressure plates 322, and the limiting blocks 33 at the end parts of the supporting plates 321 are both provided with two, so that when the limiting block 33 not only disperses the supporting force of the pressure plates 322, the supporting forces at the two ends of the supporting plates 321 are synchronously dispersed (as the dashed lines at the two ends in fig. 4 represent the movement condition of the limiting block 33), the supporting force of the device is uniformly received when the foundation pit and the surrounding plate 2 of the foundation pit are reinforced, and the condition that the non-uniform stress of the reinforcing device adopted in the prior art influences the reinforcing effect is changed;
the movement of the limiting block 33 also causes triangular supporting force to be formed among the limiting block 33, the pressure plate 322 and the foundation pit coaming 2, and according to the stability of the triangular structure, the device has higher reinforcing force on the foundation pit when being applied to the foundation pit formed on the building engineering based on the above structural effect, and the structure also has higher stability and stress uniformity.
In order to carry out concrete explanation to the drive assembly 31 structure that uses in the aforesaid, do benefit to this scheme and put into use, drive assembly 31 is including installing the mounting panel 311 between foundation ditch bounding wall 2, rotate on the mounting panel 311 and be provided with reciprocating screw 312, reciprocating screw 312 passes through biax motor 313 drive, reciprocating screw 312's both ends and backup pad 321 threaded connection, the both ends of mounting panel 311 are fixed on foundation ditch bounding wall 2 through installation piece 314, set up reciprocating screw nut on through backup pad 321, reciprocating screw 312's rotation will drive two backup pads 321 and carry out relative motion, pressure plate 322 will be close to foundation ditch bounding wall 2 and compress tightly foundation ditch bounding wall 2. When the pressure plate 322 is reset and driven, the volume of the whole reinforcing mechanism 3 is reduced, so that the reinforcing mechanism 3 is convenient to transport and use, the reinforcing mechanism 3 can be adapted to foundation pits with different inner diameters along with the volume expansion of the reinforcing mechanism 3, and the application range of the device is expanded (the size of the double-shaft motor 313 is 1LE0001-1CC33-3AA 4).
The pressure plate 322 is connected with the driving assembly 31 through the connecting part 323, the limiting block 33 is connected with the connecting part 323, the pressure plate 322 and the limiting block 33 are hinged with the connecting part 323 through the arrangement of the connecting part 323, so that the pressure plate 322 can rotate and change along the connecting part of the connecting part 323, and the limiting block 33 also rotates and changes along the connection with the connecting part 323, thus completing the design of the structure; the two limiting blocks 33 are connected through a pressure spring 35, the pressure spring 35 is used for providing supporting force for the limiting blocks 33, and the pressure spring 35 gives the limiting blocks 33 a transverse tensioning force, so that the two limiting blocks 33 have larger reverse supporting force when pressing the foundation pit coaming 2, and the limiting blocks 33 have larger pressing force when gradually expanding outwards to press the foundation pit coaming 2 in the using process.
Next, a groove is formed in the supporting plate 321, the driving mechanism comprises a transmission screw rod 3211 which is rotatably arranged in the groove, the transmission screw rod 3211 is driven by a transmission motor 3212, an extension portion 3231 is connected to the transmission screw rod 3211 in a threaded manner, the extension portion 3231 is installed on the connecting portion 323, the transmission screw rod 3211 is driven by the transmission motor 3212 to rotate, the transmission screw rod 3211 drives the extension portion 3231 to move outwards along the groove, the limiting block 33 extends outwards due to the integral structure of the extension portion 3231 and the connecting portion 323, and the connection angle between the pressure plate 322 and the limiting block 33 is synchronously changed, so that the whole device can achieve the adjustment change.
Example 2
Referring to fig. 3 and 7, in order to enhance stability of the supporting plate 321 during linear transmission along with the reciprocating screw rod 312, a driving limiting assembly 34 is disposed between the mounting plate 311 and the supporting plate 321, the driving limiting assembly 34 includes an inner limiting plate 341, one end of the inner limiting plate 341 is movably connected with the mounting plate 311, an outer limiting plate 342 is slidably disposed on the inner limiting plate 341, the outer limiting plate 342 is movably connected with the supporting plate 321, the outer limiting plate 342 follows the movement of the supporting plate 321, and the outer limiting plate 342 moves on the inner limiting plate 341 to form linear limitation on the movement of the supporting plate 321, so that the supporting plate 321 and the pressure plate 322 move to compress the stability of the foundation pit coaming 2, so that pressures at two ends of the pressure plate 322 are uniform, and supporting and reinforcing effects on the foundation pit are improved.
Wherein, the inner limiting plate 341 and the outer limiting plate 342 are connected by a limiting spring 343, the limiting spring 343 is used for increasing the resistance when the outer limiting plate 342 moves, the limiting spring 343 is pulled to deform, so that the outer limiting plate 342 generates resistance when moving, and the movement of the outer limiting plate 342 is further stabilized.
Example 3
Referring to fig. 8-10, the pressure plates 322 are provided with openings, a limiting arm 4 is disposed between the openings of the two pressure plates 322, two ends of the limiting arm 4 are provided with extending columns for preventing the limiting arm 4 from separating from the openings, and the limiting arm 4 is arranged to limit the movement angle of the pressure plates 322 and increase the movement stability of the two pressure plates 322 when the pressure plates 322 are relatively close to each other and move.
The pressure plate 322 drives the limiting arm 4 to move, when the limiting arm 4 contacts the limiting block 33, the limiting block 33 receives a limiting movement force, a trapezoidal support with a four-corner structure is formed among the limiting block 33, the limiting arm 4 and the supporting plate 321, along with the relative movement of the pressure plate 322, the limiting arm 4 is synchronously driven to move to change positions, when the ends of the two pressure plates 322 contact, the limiting arm 4 does not move any more, and two ends of the limiting arm 4 contact the side surfaces of the limiting block 33 to form a support (as a middle broken line in fig. 8 indicates the movement condition of the limiting arm 4), so that a positioning support is made for the limiting block 33, and the effect of the limiting arm 4 in specific use is improved.
Next, the limiting arm 4 is connected with the reciprocating screw rod 312 through the limiting arm spring 5, the limiting arm 4 is stably arranged in the pressure plate 322 through the arrangement of the limiting arm spring 5, the limiting arm spring 5 is compressed when the limiting arm 4 follows the movement of the pressure plate 322, a reverse supporting force is provided for the limiting arm 4 by the limiting arm spring 5, the limiting arm 4 is pressed against one end of the reciprocating screw rod 312, and the fixing effect of the limiting arm 4 is improved.
Referring to fig. 11, a second object of the present invention is to provide a reinforcement method for constructing a reinforcement device for a foundation pit of civil engineering according to the above description, wherein: the method comprises the following steps:
step one: the foundation pit coaming 2 is arranged in a foundation pit which is arranged in advance, and the reinforcing mechanism 3 is placed in the foundation pit, so that the mounting block 314 and the foundation pit coaming 2 are fixedly mounted;
step two: the two supporting plates 321 are driven to move relatively through the reciprocating screw rod 312, the pressure plates 322 squeeze the foundation pit coaming 2, and the ends of the two pressure plates 322 are contacted to form larger supporting and reinforcing force for the foundation pit coaming 2;
step three: the limiting block 33 is driven to extend outwards through the driving mechanism, so that the limiting block 33 is outwards expanded and pressed on the foundation pit coaming 2, and along with the movement change of the limiting block 33, the limiting block 33 synchronously changes the angles between the pressure plates 322 and the supporting plates 321, so that the limiting block 33 disperses the pressure born by the supporting plates 321, and a plurality of triangular supporting structures are formed between the pressure plates 322 and the supporting plates 321 and between the limiting block 33 and the foundation pit coaming 2;
step four: as the pressure plate 322 moves the restricting arm 4, both ends of the restricting arm 4 are forced to contact the restricting block 33 when the pressure plate 322 moves to a large position, and pressure locking is formed on the restricting block 33.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a civil engineering foundation ditch construction reinforcing apparatus, includes foundation ditch bounding wall (2), foundation ditch bounding wall (2) set up in the foundation ditch of seting up on ground (1), be provided with strengthening mechanism (3) between foundation ditch bounding wall (2), strengthening mechanism (3) include drive assembly (31), its characterized in that: the utility model provides a pressure control device for foundation ditch bounding wall, including drive assembly (31), both sides of drive assembly (31) all are provided with supporting component (32), supporting component (32) are including backup pad (321), pressure board (322) that are used for extrudeing foundation ditch bounding wall (2) and make its laminating on the foundation ditch are installed at the both ends of backup pad (321), when two pressure boards (322) are in relative motion, and cause great holding power to foundation ditch bounding wall (2) when tip contact, and make between pressure board (322) and backup pad (321) form a plurality of supporting points, install two restriction piece (33) on pressure board (322), restriction piece (33) drive through driving mechanism, extrude foundation ditch bounding wall (2) when restriction piece (33) outwards stretch out, and force the angle of pressure board (322) tip supporting point to change when restriction piece (33) move, restriction piece (33) carry out the atress to guide to the tie point of pressure board (322) and pressure that foundation ditch bounding wall (2) bear and scatter.
2. The civil engineering foundation pit construction reinforcing apparatus according to claim 1, wherein: the driving assembly (31) comprises a mounting plate (311) arranged between foundation pit coamings (2), a reciprocating screw rod (312) is rotatably arranged on the mounting plate (311), the reciprocating screw rod (312) is driven by a double-shaft motor (313), and two ends of the reciprocating screw rod (312) are in threaded connection with a supporting plate (321).
3. The civil engineering foundation pit construction reinforcing apparatus according to claim 1, wherein: the pressure plate (322) is connected with the driving assembly (31) through a connecting part (323), and the limiting block (33) is connected with the connecting part (323), wherein:
the two limiting blocks (33) are connected by a pressure spring (35), and the pressure spring (35) is used for providing supporting force for the limiting blocks (33).
4. A civil engineering foundation pit building reinforcing apparatus according to claim 3, wherein: the support plate (321) is provided with a groove, the driving mechanism comprises a transmission screw rod (3211) which is rotatably arranged in the groove, the transmission screw rod (3211) is driven by a transmission motor (3212), an extension part (3231) is connected to the transmission screw rod (3211) in a threaded manner, and the extension part (3231) is arranged on the connecting part (323).
5. The civil engineering foundation pit construction reinforcing apparatus according to claim 2, wherein: be provided with drive limiting component (34) between mounting panel (311) and backup pad (321), drive limiting component (34) are including interior limiting plate (341), the one end and the mounting panel (311) swing joint of interior limiting plate (341), slide on interior limiting plate (341) and be provided with outer limiting plate (342), outer limiting plate (342) and backup pad (321) swing joint.
6. The civil engineering foundation pit building reinforcing apparatus according to claim 5, wherein: the inner limiting plate (341) and the outer limiting plate (342) are connected through a limiting spring (343), and the limiting spring (343) is used for increasing the resistance force when the outer limiting plate (342) moves.
7. The civil engineering foundation pit construction reinforcing apparatus according to claim 2, wherein: the pressure plates (322) are provided with through holes, limiting arms (4) are arranged between the through holes on the two pressure plates (322), and extension columns for preventing the limiting arms (4) from separating from the through holes are arranged at two ends of the limiting arms (4).
8. The civil engineering foundation pit building reinforcing apparatus according to claim 7, wherein: the pressure plate (322) drives the limiting arm (4) to move, when the limiting arm (4) contacts the limiting block (33), the limiting block (33) is limited in movement force, and trapezoidal supports with four-corner structures are formed among the limiting block (33), the limiting arm (4) and the supporting plate (321).
9. The civil engineering foundation pit building reinforcing apparatus according to claim 8, wherein: the limiting arm (4) is connected with the reciprocating screw rod (312) through a limiting arm spring (5).
10. A reinforcement method for use in a reinforcement device for the construction of a foundation pit for civil engineering according to claims 1-9, characterized in that: the method comprises the following steps:
step one: the foundation pit coaming (2) is arranged in a foundation pit which is arranged in advance, and the reinforcing mechanism (3) is placed in the foundation pit, so that the mounting block (314) and the foundation pit coaming (2) are fixedly mounted;
step two: the two support plates (321) are driven to move relatively through the reciprocating screw rod (312), the pressure plates (322) squeeze the foundation pit coaming (2), and the ends of the two pressure plates (322) are contacted to form larger supporting and reinforcing force for the foundation pit coaming (2);
step three: the limiting block (33) is driven to extend outwards by the driving mechanism, so that the limiting block (33) is outwards expanded and pressed on the foundation pit coaming (2), and along with the movement change of the limiting block (33), the limiting block (33) synchronously changes the angles between the pressure plates (322) and the supporting plates (321), so that the limiting block (33) disperses the pressure borne by the supporting plates (321), and a plurality of triangular supporting structures are formed between the pressure plates (322) and the supporting plates (321) and between the limiting block (33) and the foundation pit coaming (2);
step four: with the movement of the pressure plate (322), the limiting arm (4) moves, and when the pressure plate (322) moves to a larger position, both ends of the limiting arm (4) are forced to contact the limiting block (33), so that the limiting block (33) is locked under pressure.
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| CN202210964363.1A CN115467337B (en) | 2022-08-11 | 2022-08-11 | Civil engineering foundation pit construction reinforcing device and reinforcing method |
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| CN202210964363.1A CN115467337B (en) | 2022-08-11 | 2022-08-11 | Civil engineering foundation pit construction reinforcing device and reinforcing method |
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| CN115467337B true CN115467337B (en) | 2023-08-25 |
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| CN111576433A (en) * | 2020-04-16 | 2020-08-25 | 范经明 | Quick support bracket for subway deep foundation pit engineering and construction method thereof |
| CN112195928A (en) * | 2020-10-09 | 2021-01-08 | 中煤长江生态环境科技有限公司 | Pile plate composite structure for foundation pit support |
| CN212477750U (en) * | 2020-04-28 | 2021-02-05 | 晋城合为规划设计集团有限公司 | A supporting construction for peripheral foundation ditch of existing building |
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2022
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| JP2005240534A (en) * | 2004-02-23 | 2005-09-08 | Chaneuru Kwak | Steel-pipe temporary-equipment construction method |
| KR101426507B1 (en) * | 2013-04-30 | 2014-08-05 | (주)종합건축사사무소 그룹케이 | Temporary facility for retaining wall in building |
| CN209227547U (en) * | 2018-11-02 | 2019-08-09 | 浙江协和建设有限公司 | A kind of deep foundation pit support structure |
| CN111576433A (en) * | 2020-04-16 | 2020-08-25 | 范经明 | Quick support bracket for subway deep foundation pit engineering and construction method thereof |
| CN212477750U (en) * | 2020-04-28 | 2021-02-05 | 晋城合为规划设计集团有限公司 | A supporting construction for peripheral foundation ditch of existing building |
| CN112195928A (en) * | 2020-10-09 | 2021-01-08 | 中煤长江生态环境科技有限公司 | Pile plate composite structure for foundation pit support |
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| CN115467337A (en) | 2022-12-13 |
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