CN214783976U

CN214783976U - Foundation pit support structure

Info

Publication number: CN214783976U
Application number: CN202120206688.4U
Authority: CN
Inventors: 夏加洪; 贾华桥; 郑炜; 金潇; 叶炜炜
Original assignee: Hengyuan Construction Holding Group Co ltd
Current assignee: Hengyuan Construction Holding Group Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-19
Anticipated expiration: 2031-01-25

Abstract

The application relates to a foundation pit support structure which comprises two protection plates arranged at the corners of the inner side wall of a foundation pit, wherein a fixed pile is arranged between the two protection plates, and the two protection plates are respectively and rotatably connected to the fixed pile; a supporting mechanism is arranged in an included angle area defined by the two protective plates, and comprises a base plate fixed at the bottom of the foundation pit and an inclined supporting rod which is connected in a sliding manner and hinged to the base; the outer side of the diagonal brace is connected with a transverse brace in a sliding manner, and the length of the transverse brace is adjustable. The utility model provides a foundation ditch enclosure structure can let two backplate closely support in the both sides wall of foundation ditch corner through adjusting the angle of two backplate for the spud pile, can make this foundation ditch enclosure structure be applicable to the foundation ditch corner that has different angles, plays good supporting effect.

Description

Foundation pit support structure

Technical Field

The application relates to foundation pit construction engineering technical field especially relates to a foundation pit retaining structure.

Background

In urban centers with dense buildings, excavation of deep foundation pits becomes an important issue for geotechnical engineering. The foundation pit enclosure system is an organism with mutual combined action of soil and a supporting structure, and has higher requirements on the safety of the foundation pit enclosure system due to the restriction of factors such as surrounding buildings, underground pipelines and the like. The enclosure of the foundation pit not only ensures the stability of the foundation pit and the safety and convenience of operation in the pit, but also ensures that the displacement of the soil at the bottom of the pit and outside the pit is controlled within a certain range, thereby ensuring the normal use of adjacent buildings and municipal facilities.

The related patents at present disclose a foundation pit support structure, which comprises a support mechanism circumferentially arranged on the inner side wall of the foundation pit, a plurality of support components circumferentially arranged at the bottom of the foundation pit and abutted against the support mechanism, and a plurality of reinforcing components positioned at the upper end corner of the foundation pit; the reinforcing assembly comprises a long connecting rod and a short connecting rod, the two ends of the long connecting rod are fixedly connected with the enclosure mechanism, the two ends of the long connecting rod are fixedly connected with the steel pile, and the two ends of the short connecting rod are fixedly connected with the soil retaining plate.

In view of the above-mentioned related art, the inventors consider that the following drawbacks exist:

the length of long connecting rod and short connecting rod is fixed in this reinforced subassembly, and when the turning of foundation ditch inside wall was more and the turning angle of foundation ditch inside wall was inconsistent, long connecting rod and the unable envelope of pasting in the foundation ditch inside wall of support of short connecting rod led to the foundation ditch envelope to play the supporting role limited.

SUMMERY OF THE UTILITY MODEL

In order to make this foundation ditch envelope be applicable to the foundation ditch turning that has different angles, this application provides a foundation ditch envelope.

The application provides a foundation ditch envelope adopts following technical scheme:

a foundation pit support structure comprises two support plates arranged at the corners of the inner side wall of a foundation pit, a fixed pile is arranged between the two support plates, and the two support plates are respectively and rotatably connected to the fixed pile; a supporting mechanism is arranged in an included angle area defined by the two supporting guard plates, and comprises a base plate fixed at the bottom of the foundation pit and an inclined supporting rod which is connected in a sliding manner and hinged to the base; the outer sides of the inclined supporting rods are connected with transverse supporting rods in a sliding mode, and the length of each transverse supporting rod is adjustable.

Through adopting foretell technical scheme, will set up in two backplate of foundation ditch corner in this application and rotate respectively and connect in the spud pile, through adjusting two backplate for the angle of spud pile and let two backplate closely support in the both sides wall of foundation ditch corner, can make this foundation ditch retaining structure be applicable to the foundation ditch corner that has different angles, play good supporting effect.

Wherein, supporting mechanism's setting is used for supporting a backplate and foundation ditch lateral wall, and the both ends that make the diagonal brace drive the diagonal brace through removing the diagonal brace are close to two backplate respectively, then adjust the length of diagonal brace pole and make the both ends of diagonal brace butt respectively and be fixed in two backplate, can play good supporting effect, reduce the possibility that the foundation ditch lateral wall emptys.

Optionally, the spreader bar includes the mobile jib, adjusts pole and sleeve, the mobile jib cup joints in the spreader bar and is connected with the spreader bar sliding key, it is equipped with two to adjust the pole, two adjust the pole and pass through sleeve threaded connection respectively in the both ends of mobile jib.

By adopting the technical scheme, the two adjusting rods are respectively connected to the two ends of the main rod through the sleeve threads, and the function of adjusting the length of the cross brace can be realized by adjusting the relative positions of the adjusting rods and the main rod through rotating the sleeve; the mobile jib sliding key is connected in the diagonal brace, can restrict the mobile jib and wind the pivoted condition of the axis of diagonal brace, makes the regulation pole at connecting mobile jib both ends can connect respectively in two backplate.

Optionally, the inclined strut is in threaded connection with a limiting block for fixing the relative position of the main rod and the inclined strut, and the limiting block is located on one side of the transverse strut close to the substrate.

Through adopting foretell technical scheme, the setting of stopper has the effect of supporting the mobile jib, reduces the mobile jib and receives behind the toppling force of foundation ditch lateral wall along the diagonal brace to the possibility of being close to the direction of base plate, improves this foundation ditch retaining structure's holding power and stability.

Optionally, a locking block is hinged to an end portion, away from the main rod, of the adjusting rod, and the locking block and an axial direction of a hinged shaft of the adjusting rod are perpendicular to an axial direction of the adjusting rod; the locking block is fixed on the supporting and protecting plate through a fastener.

By adopting the technical scheme, because the angles of the corners of the foundation pit are different, the included angle formed by the two protective plates after being fixed is not fixed, and the fixing effect of fixing the adjusting rod and the supporting plate by adopting a fastener in the traditional mode is poor; by arranging the locking block and setting the axial directions of the locking block and the hinged shaft of the adjusting rod to be vertical to the axial direction of the adjusting rod, the locking block can rotate circumferentially along the extension direction of the adjusting rod, so that the locking block can be conveniently adjusted to the position right opposite to the supporting and protecting plate; the locking block after the adjustment is fixed on the supporting plate through the fastening piece, so that the locking block and the supporting plate are connected, and a good supporting effect is achieved.

Optionally, the fixing pile is hinged with two hinged plates, and one side of each hinged plate, which is away from the fixing pile, is provided with a limiting groove matched with the supporting plate.

By adopting the technical scheme, after the supporting plate is arranged in the limiting groove of the limiting groove, the supporting plate can rotate circumferentially around the hinged plate and the hinged shaft of the fixed pile so as to adjust the angles of the two protecting plates relative to the fixed pile, so that the foundation pit enclosure structure is suitable for foundation pit corners with different angles;

in addition, the supporting and protecting plates and the fixing piles are separated from each other, so that the space occupancy rate of the foundation pit support structure can be reduced, the transportation of the supporting and protecting plates and the fixing piles is facilitated, and the transportation cost is reduced.

Optionally, the fixing pile is provided with a transverse plate, and the transverse plate and the hinged plate are arranged in a staggered manner along the extension direction of the fixing pile; one end of the inclined stay bar, which is far away from the base, is connected with a reinforcing block, and the reinforcing block is abutted against the bottom of the transverse plate.

By adopting the technical scheme, the transverse plates and the hinged plates are arranged in a staggered manner along the extension direction of the fixing pile, so that the transverse plates are not easy to interfere the rotation of the hinged plates; the transverse supporting rod supports against the bottom of the transverse plate through the reinforcing block, so that the transverse supporting rod has the function of assisting in supporting the fixing pile, and the stability of the fixing pile and the supporting plates on two sides of the fixing pile is further improved.

Optionally, a sliding groove is formed in the middle of the substrate, and a sliding block is slidably mounted in the sliding groove; the inclined supporting rod is hinged to the sliding block.

Through adopting foretell technical scheme, the slider slides and installs in the spout, can drive the removal with slider articulated diagonal brace through removing the slider, and then drives the both ends of horizontal brace pole and be close to two backplate, is convenient for be fixed in a backplate with the horizontal brace pole.

Optionally, the base plate is in threaded connection with a screw rod, and the screw rod penetrates through the sliding groove and is rotatably connected to the sliding block.

Through adopting foretell technical scheme, the setting of screw rod can promote the slider through rotating the screw rod and remove to the direction that is close to the spud pile, and then drives diagonal brace and spreader bar and rotate to the direction that is close to a backplate, and operation process is simple and convenient, further improves the convenience of being fixed in a backplate with the crossbar lever.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the foundation pit support structure can be suitable for foundation pit corners with different angles by adjusting the angles of the two protection plates relative to the fixed pile and enabling the two protection plates to tightly abut against two side walls at the corners of the foundation pit, so that a good support effect is achieved;

2. the two adjusting rods are respectively in threaded connection with the two ends of the main rod, and the function of adjusting the length of the cross brace can be realized by adjusting the relative positions of the adjusting rods and the main rod;

3. through setting up the latch segment to establish the axial of the articulated shaft of latch segment and regulation pole and the axial of adjusting the pole as perpendicular, can make the latch segment do the circumferential direction along the extending direction of adjusting the pole, be convenient for adjust the latch segment to just to the position of a backplate.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a schematic structural view of a fixing pile and a backup plate in the embodiment of the present application;

FIG. 3 is a schematic structural view of a support mechanism in an embodiment of the present application;

fig. 4 is a sectional view taken along the direction a-a in fig. 3, and mainly shows the connection relationship between the main rod and the diagonal rods.

Description of reference numerals: 1. fixing the pile; 11. mounting grooves; 12. a hinge plate; 121. a limiting groove; 13. a transverse plate; 2. supporting the guard plate; 3. a support mechanism; 31. a substrate; 311. a chute; 312. a slider; 3121. an extension portion; 313. a screw; 314. a handle; 32. a diagonal brace; 321. a reinforcing block; 322. a limiting block; 33. a transverse stay bar; 331. a main rod; 332. adjusting a rod; 333. a sleeve; 3321. a locking block; 3322. a fastener; 4. an anchor body.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a foundation pit support structure.

Referring to fig. 1 and 2, a foundation pit support structure comprises a fixed pile 1 and two protection plates 2 rotatably connected to the fixed pile 1; the fixing pile 1 is cylindrical, mounting grooves 11 are formed in two sides of the fixing pile 1 along the axis direction of the fixing pile 1, the fixing pile 1 is hinged with two hinged plates 12, the two hinged plates 12 are hinged to the side walls of the two mounting grooves 11 respectively, and the two hinged plates 12 rotate circumferentially around the hinged positions of the fixing pile and the mounting grooves 11 respectively; limiting grooves 121 are formed in one side, away from the fixing pile 1, of each hinged plate 12, the two protection plates 2 are respectively embedded in the limiting grooves 121 in a matched mode, and the support plates 2 are tightly abutted to two side walls at the corners of the foundation pit through rotation of the hinged plates 12.

Referring to fig. 1, each hinged plate 12 has a supporting plate 2 and an anchor body 4 at the bottom of the fixing pile 1, and after the positions of the fixing pile 1 and the supporting plate 2 are adjusted, the fixing pile 1 and the supporting plate 2 are knocked into the bottom of the foundation pit, so that the supporting plate 2 and the fixing pile 1 can be fixed at the bottom of the foundation pit.

Referring to fig. 1, a supporting mechanism 3 is fixed at the bottom of the foundation pit, and the supporting mechanism 3 is located in an included angle area defined by two protection plates 2; the support mechanism 3 includes a base plate 31, a diagonal bar 32, and a lateral bar 33.

Referring to fig. 1, the bottom of the substrate 31 is also provided with an anchor 4, and the substrate 31 is fixed at the bottom of the foundation pit through the anchor 4; the middle part of the base plate 31 is provided with a sliding chute 311, the sliding chute 311 is a trapezoidal groove, and the extending direction of the sliding chute 311 is right opposite to the fixing pile 1; a sliding block 312 is installed in the sliding groove 311 in a matching manner, and the sliding block 312 can slide along the extension direction of the sliding groove 311; one side of the sliding block 312, which is far away from the fixed pile 1, is rotatably connected with a screw 313, the screw 313 penetrates through the substrate 31 and is in threaded connection with the substrate 31, the sliding block 312 can be pushed to slide along the sliding groove 311 by adjusting the relative position of the screw 313 and the fixed seat, and the situation that the sliding block 312 freely slides in the sliding groove 311 can be reduced; in order to adjust the relative position of the screw 313 and the fixing seat, a handle 314 is connected to an end of the screw 313 away from the sliding block 312 in the embodiment of the present application.

Referring to fig. 1, the top of the sliding block 312 is provided with an extending portion 3121, and the inclined strut 32 is hinged to the extending portion 3121, so that the inclined strut 32 can rotate circumferentially around the hinged position of the extending portion 3121 and the inclined strut 32; a reinforcing block 321 is fixed at one end of the inclined strut 32, which is away from the slider 312, the reinforcing block 321 is a circular ring section extending along an arc-shaped path, and the outer edge of one side of the reinforcing block 321, which faces the fixed pile 1, is matched with the outer peripheral side of the fixed pile 1; the fixing pile 1 is provided with a transverse plate 13 matched with the reinforcing block 321, and the transverse plate 13 is positioned above the hinged plate 12; after the inclined strut 32 slides along with the sliding block 312, the reinforcing block 321 abuts against the bottom of the transverse plate 13 and clings to the fixing pile 1, so that the fixing pile 1 is supported.

Referring to fig. 3 and 4, the transverse supporting rod 33 includes a main rod 331, an adjusting rod 332 and a sleeve 333, a sleeve groove matched with the diagonal supporting rod 32 is formed in the middle of the main rod 331, the main rod 331 is sleeved on the diagonal supporting rod 32 through the sleeve groove, and the main rod 331 and the diagonal supporting rod 32 are connected through a sliding key and used for limiting the main rod 331 to rotate relative to the diagonal supporting rod 32; the middle part of the diagonal brace 32 is in threaded connection with a limiting block 322 for limiting the main rod 331 to move in a direction away from the fixed pile 1, so as to play a role in fixing the transverse brace 33.

Referring to fig. 3, two adjusting rods 332 are provided, and the ends of the two adjusting rods 332 are respectively provided with external threads; the both ends of mobile jib 331 also are equipped with the external screw thread, and the inside of sleeve 333 is equipped with the internal thread that matches with the external screw thread of adjusting pole 332 and the external screw thread of mobile jib 331, and two are adjusted pole 332 and are connected in the both ends of mobile jib 331 through sleeve 333 respectively, and through keeping adjusting pole 332 motionless, rotate the position that the sleeve 333 can adjust adjusting pole 332 for mobile jib 331 to adjust the length of horizontal vaulting pole 33.

Referring to fig. 4, a locking block 3321 is hinged to an end of each adjusting rod 332 opposite to the main rod 331, and the axial direction of the hinge shaft of the locking block 3321 and the adjusting rod 332 is perpendicular to the axial direction of the adjusting rod 332, so that the locking block 3321 can rotate circumferentially along the extending direction of the adjusting rod 332, and the locking block 3321 is conveniently and tightly abutted to the supporting plate 2; after the locking blocks 3321 tightly abut against the supporting and protecting plates 2, the locking blocks 3321 are fixed on the supporting and protecting plates 2 through the fasteners 3322, so that the transverse support rods 33 are supported on the two supporting and protecting plates 2 to play a good supporting role; the fastener 3322 employed in the embodiment of the present application is a fastening bolt.

The implementation principle of the foundation pit support structure in the embodiment of the application is as follows:

the utility model provides a foundation ditch envelope is used for installing in the foundation ditch turning that has different angles, improves the steadiness of foundation ditch turning both sides lateral wall. During installation, the fixing pile 1 is fixed on a side line of a corner of a foundation pit, the two protection plates 2 are respectively embedded in the limiting grooves 121 of the two hinged plates 12, the two protection plates 2 are tightly abutted against two side walls of the foundation pit by rotating the limiting grooves 121, and the support plates 2 are fixed at the bottom of the foundation pit; the base plate 31 is fixed at the bottom of the foundation pit, the screw 313 drives the sliding block 312 and the inclined strut 32 to move towards the direction close to the fixed pile 1 by rotating the handle, and finally the reinforcing block 321 of the inclined strut 32 is abutted against the bottom of the transverse plate 13 to play a role in supporting the fixed pile 1; the relative position of the main rod 331 and the diagonal rod 32 and the relative position of the adjusting rod 332 and the main rod 331 are adjusted, so that the locking blocks 3321 at the two ends of the transverse strut 33 can tightly abut against the support plates 2, the locking blocks 3321 and the support plates 2 are fixed through the fasteners 3322, the installation is completed, and the transverse strut 33 can be stably supported on the two support plates 2, so that a good supporting effect is achieved.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A foundation pit support structure is characterized in that: the foundation pit supporting protection device comprises two supporting protection plates (2) arranged at the corners of the inner side wall of a foundation pit, a fixed pile (1) is arranged between the two supporting protection plates (2), and the two supporting protection plates (2) are respectively and rotatably connected to the fixed pile (1); a supporting mechanism (3) is arranged in an included angle area defined by the two supporting guard plates (2), and the supporting mechanism (3) comprises a base plate (31) fixed at the bottom of the foundation pit and an inclined strut (32) which is connected in a sliding manner and hinged to the base; the outer side of the inclined supporting rod (32) is connected with a transverse supporting rod (33) in a sliding mode, and the length of the transverse supporting rod (33) is adjustable.

2. A foundation pit enclosure according to claim 1 wherein: the transverse supporting rod (33) comprises a main rod (331), two adjusting rods (332) and two sleeves (333), wherein the main rod (331) is sleeved on the inclined supporting rod (32) and connected with the inclined supporting rod (32) through a sliding key, and the two adjusting rods (332) are respectively connected to two ends of the main rod (331) through the sleeves (333) in a threaded mode.

3. A foundation pit enclosure according to claim 2 wherein: the inclined strut (32) is in threaded connection with a limiting block (322) used for fixing the relative position of the main rod (331) and the inclined strut (32), and the limiting block (322) is located on one side, close to the substrate (31), of the transverse strut (33).

4. A foundation pit enclosure according to claim 2 wherein: a locking block (3321) is hinged to one end of the adjusting rod (332) which is far away from the main rod (331), and the axial directions of the locking block (3321) and the hinged shaft of the adjusting rod (332) are perpendicular to the axial direction of the adjusting rod (332); the locking block (3321) is fixed on the support guard plate (2) through a fastener (3322).

5. A foundation pit enclosure according to claim 1 wherein: the fixing pile (1) is hinged with two hinged plates (12), and one side, away from the fixing pile (1), of each hinged plate (12) is provided with a limiting groove (121) matched with the supporting plate (2).

6. A foundation pit enclosure structure according to claim 5, wherein: the fixing pile (1) is provided with a transverse plate (13), and the transverse plate (13) and the hinged plate (12) are arranged in a staggered mode along the extending direction of the fixing pile (1); one end of the inclined stay bar (32) departing from the base is connected with a reinforcing block (321), and the reinforcing block (321) abuts against the bottom of the transverse plate (13).

7. A foundation pit enclosure according to claim 1 wherein: a sliding groove (311) is formed in the middle of the base plate (31), and a sliding block (312) is installed in the sliding groove (311) in a sliding mode; the inclined supporting rod (32) is hinged to the sliding block (312).

8. A foundation pit enclosure according to claim 7 wherein: the sliding block (312) is rotatably connected with a screw (313) used for pushing the sliding block (312) to move, and the screw (313) is in threaded connection with the substrate (31).