CN211816285U

CN211816285U - Novel comprehensive pipe rack foundation pit support structure

Info

Publication number: CN211816285U
Application number: CN202020232655.2U
Authority: CN
Inventors: 邵晨晨; 罗济稳; 廖荣
Original assignee: Shanghai Geotechnical Engineering & Geology Institute Co ltd
Current assignee: Shanghai Geotechnical Engineering & Geology Institute Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-10-30
Anticipated expiration: 2030-02-28

Abstract

The utility model relates to a novel utility tunnel foundation pit retaining structure contains foundation ditch and a plurality of row's of setting on the inside both sides wall of foundation ditch, the foundation ditch is equipped with the built-in fitting respectively along the subaerial of width direction both sides, bolted connection has the fixed beam on two built-in fittings, the whole top of erectting the foundation ditch of fixed beam and towards the terminal surface of foundation ditch and be equipped with the fixed column, wear to establish respectively on the fixed column and threaded connection has two screw rods, two screw rods support tightly respectively on the row's of foundation ditch both sides stake, the one end that row's stake was kept away from to two screw rods is equipped with the. The utility model discloses the technical effect who has is: the enclosure structure can be repeatedly used, and is energy-saving and environment-friendly.

Description

Novel comprehensive pipe rack foundation pit support structure

Technical Field

The utility model belongs to the technical field of the technique of foundation ditch enclosure and specifically relates to a novel utility tunnel foundation ditch enclosure structure is related to.

Background

The utility tunnel is an underground urban pipeline utility tunnel, namely, a tunnel space is built underground in a city, various engineering pipelines such as electric power, communication, gas, heat supply, water supply and drainage and the like are integrated, a special overhaul port, a lifting port and a monitoring system are arranged, unified planning, unified design, unified construction and management are implemented, and the utility tunnel is an important infrastructure and a 'lifeline' for guaranteeing urban operation. In the construction process of building the comprehensive pipe gallery, firstly, excavation and maintenance work of a foundation pit are carried out.

Notice No. CN207597396U discloses a foundation ditch retaining structure, including the enclosure subassembly that is located the foundation ditch both sides, the enclosure subassembly includes a plurality of campshed of following foundation ditch both sides linear arrangement in proper order, and the bottom of campshed is vertical to be inserted in the soil layer, and the top of campshed is fixed to be equipped with concrete crown beam, and the campshed is close to foundation ditch one side and is equipped with the longitudinal tie, is equipped with the jet grouting stake anchor rope on the longitudinal tie, jet grouting stake anchor rope one end and longitudinal tie fixed connection, the other end inserts in the soil layer of foundation ditch lateral wall to one side, is equipped with two sets of horizontal support piece that are used for supporting the campshed of foundation ditch both sides in the foundation ditch, and two sets of horizontal support piece are located the upper portion and the.

The above prior art solutions have the following drawbacks: the transverse supporting pieces in the foundation pit enclosure structure are of fixed lengths, foundation pits with different widths are difficult to support, and the widths of the different foundation pits are different, so that the whole foundation pit enclosure structure is difficult to recycle.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model discloses a technological effect does: the enclosure structure can be repeatedly used, and is energy-saving and environment-friendly.

Utility model's above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a novel utility tunnel foundation pit retaining structure, contains foundation ditch and a plurality of row's stake of setting on the inside both sides wall of foundation ditch, the foundation ditch is equipped with the built-in fitting, two respectively along the subaerial of width direction both sides bolted connection has the fixed beam on the built-in fitting, the fixed beam is whole erects in the top of foundation ditch and is equipped with the fixed column towards the terminal surface of foundation ditch, wear to establish respectively on the fixed column and threaded connection has two screw rods, two the screw rod supports tightly respectively on the row's stake of foundation ditch both sides, two the one end that row's stake was kept away from to the screw rod is equipped.

By adopting the technical scheme, when foundation pits with different widths need to be supported and maintained, workers can firstly connect the fixed beam to the two embedded parts through bolts, then respectively rotate the rotating heads on the two screw rods to drive the two screw rods to respectively move towards the two sides of the foundation pit until the two screw rods respectively abut against the row piles at the two sides of the foundation pit, so that the row piles are difficult to incline towards the interior of the foundation pit, and the effect of enclosing the foundation pit is achieved; meanwhile, the length of the screw rod extending out of the fixed beam can be adjusted by a worker in a manner of rotating the swivel, so that the enclosure structure can be suitable for foundation pits with different widths, the worker can conveniently recycle the enclosure structure, and the enclosure structure is energy-saving and environment-friendly.

The present invention may be further configured in a preferred embodiment as: the fixing column is arranged between the two support frames, and the two screw rods are respectively penetrated and connected to the two support frames in a threaded manner.

Through adopting above-mentioned technical scheme, the setting up of support frame has played the effect that supports the screw rod for the screw rod is kept away from the one end of fixed beam and is difficult for the downward sloping skew under the influence of self gravity, so that the staff can adjust the length that the screw rod extends the fixed beam by comparatively laborsaving rotation pivot.

The present invention may be further configured in a preferred embodiment as: the end, far away from the rotary head, of the screw rod is rotatably connected with a propping block, a rubber block is arranged on the end face, far away from the screw rod, of the propping block, and the rubber block is propped against the screw rod.

Through adopting above-mentioned technical scheme, screw rod accessible supports tight piece and rubber block and supports tightly supporting to the campshed, and the rubber block can atress be out of shape and fill campshed and the space between the tight piece to the campshed when receiving the extrusion force that comes from supporting tight piece and campshed to the extrusion force that comes from the screw rod can evenly be exerted on the campshed, thereby has promoted the supporting effect of screw rod to the campshed.

The present invention may be further configured in a preferred embodiment as: the fixing column is also respectively penetrated and connected with two rotation resisting bolts in a threaded manner, and the two rotation resisting bolts are respectively abutted against the two screw rods.

Through adopting above-mentioned technical scheme, two hinder changeing the bolt and support tightly on the screw rod and make the screw rod be difficult for rotating under the effect of external force to it is not hard up and row pile separation under the effect of external force to have reduced the screw rod, influences the possibility of whole envelope fastness, thereby has strengthened envelope's stability.

The present invention may be further configured in a preferred embodiment as: the fixing column is further provided with two slots respectively, rotation blocking plates are arranged in the two slots respectively, one ends of the rotation blocking bolts facing the screw rods are connected to the two rotation blocking plates in a rotating mode respectively, anti-slip pads are arranged on end faces of the two rotation blocking plates, which deviate from the rotation blocking bolts, and the two anti-slip pads are abutted to the two screw rods respectively.

Through adopting above-mentioned technical scheme, the setting of hindering commentaries on classics board and slipmat has increased the frictional force that hinders between commentaries on classics bolt and the screw rod to resistance when further having increased the screw rod and rotating has further strengthened hindering the commentaries on classics effect of changeing the bolt to the screw rod.

The present invention may be further configured in a preferred embodiment as: one side of the rotation resisting plate, which is far away from the screw rod, is connected with a fixing plate through a plurality of springs, and the anti-skid pad is arranged on one side of the fixing plate, which is far away from the springs; when the anti-skid pad is tightly propped against the screw rod, the springs are in a contraction state.

Through adopting above-mentioned technical scheme, the spring of contraction state has elastic restoring force, when hindering to change the screw bolt and appear not hard up the condition under the effect of external force, under the effect of a plurality of spring elastic restoring forces, the slipmat can still be supported tightly on the screw rod for the difficult not hard up condition that appears of screw rod, thereby strengthened hindering and changeing the stability that the screw bolt hinders the effect to the screw rod.

The present invention may be further configured in a preferred embodiment as: and reinforcing blocks are respectively arranged at included angles between the fixed columns and the fixed beams.

Through adopting above-mentioned technical scheme, the setting up of a plurality of reinforcement pieces has played and has carried out reinforced (rfd) effect to the junction between fixed beam and the fixed column for the fixed column is difficult for the fixed beam slope under the effect of campshed extrusion force, so that the screw rod can be long-term stable support the campshed.

The present invention may be further configured in a preferred embodiment as: and a plurality of reinforcing ribs are arranged on the fixing column.

Through adopting above-mentioned technical scheme, the setting up of a plurality of strengthening ribs has strengthened the structural strength of fixed column self for the fixed column is difficult for warp under the mutual extruded shear force effect of two campshed, thereby has further strengthened the tight effect of supporting of screw rod to the campshed.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the enclosure structure can be suitable for foundation pits with different widths, so that workers can repeatedly utilize the enclosure structure, and the enclosure structure is energy-saving and environment-friendly;

2. the arrangement of the rotation-resisting bolt reduces the possibility that the screw rod is loosened under the action of external force, so that the stability of the enclosure structure is enhanced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic cross-sectional view of the present embodiment for embodying the grooving.

Reference numerals: 1. a foundation pit; 2. pile arrangement; 3. embedding parts; 4. a fixed beam; 5. fixing a column; 6. a screw; 7. turning the head; 8. a support frame; 9. a propping block; 10. a rubber block; 11. a rotation-resisting bolt; 12. grooving; 13. a rotation resistance plate; 14. a non-slip mat; 15. a spring; 16. a fixing plate; 17. a reinforcing block; 18. and (5) reinforcing ribs.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a novel comprehensive pipe gallery foundation pit support structure comprises a foundation pit 1 and two rows of row piles 2 which are linearly arranged on two sides of the inner wall of the foundation pit 1, wherein two embedded parts 3 are respectively and oppositely embedded in the ground on two sides of the foundation pit 1 along the width direction, fixing beams 4 are connected to the two embedded parts 3 through bolts, the whole fixing beam 4 is positioned above the foundation pit 1 and is mutually and vertically distributed with the trend of the foundation pit 1, fixing columns 5 which partially extend into the foundation pit 1 are fixedly arranged on the end surfaces of the fixing beams 4 facing the foundation pit 1, L-shaped support frames 8 are respectively and fixedly arranged on the end surfaces of the fixing columns 5 facing the two row piles 2, the fixing columns 5 are positioned between the two support frames 8 and are arranged one above the other by the two support frames 8, two screw rods 6 are respectively penetrated and connected with the fixing columns 5 along the vertical direction through threads, and hexagonal rotary heads 7 are respectively and fixedly arranged at the end, one ends of the two screws 6 far away from the rotating head 7 are respectively penetrated and arranged and are in threaded connection with the two support frames 8. Therefore, the staff can rotate two turns 7 respectively and drive two screws 6 to rotate for two screws 6 extend to fixed column 5 both sides respectively, until two screws 6 support tightly respectively on the campshed 2 of foundation ditch 1 both sides, support tightly supporting thereby to foundation ditch 1 to the campshed 2, two screws 6 extend the adjustable length that fixed column 5 makes this screw 6 can support tightly supporting to the campshed 2 on the different width foundation ditch 1 inner walls, so that the staff can carry out reuse, energy-concerving and environment-protective to this envelope.

As shown in fig. 1, two support frames 8 are respectively located the both sides of fixed column 5 and have played the effect of supporting two screws 6 to in-process that the staff rotated to the row pile 2 direction removal at drive screw 6, two screws 6 can remain the horizontality throughout, have reduced the screw 6 and have extended the part of fixed column 5 and down-dip under the influence of self gravity, make the connecting portion of screw 6 and fixed column 5 dead by the card, lead to the staff to be difficult to continue to adjust the possibility of screw 6.

As shown in fig. 1, the end of the screw 6 far from the rotor 7 is rotatably connected with a resisting block 9, and a rubber block 10 is adhered to the end surface of the resisting block 9 far from the screw 6. Therefore, when needing to support tight support to campshed 2, the staff can rotate two screw rods 6 respectively and drive to support tight piece 9 and drive rubber block 10 and remove towards campshed 2 direction, until rubber block 10 is supported tightly between tight piece 9 and campshed 2, rubber block 10 can take place to deform when receiving the extrusion force and fill row stake 2 and the space of supporting between the tight piece 9, so that the holding power of screw rod 6 can be evenly exerted on campshed 2, when having reduced campshed 2 and for supporting tight piece 9 slope slightly or surface unevenness, screw rod 6 is less with the area of contact of campshed 2, influence the possibility of screw rod 6 supporting effect.

As shown in fig. 1, a reinforcing block 17 with a right-angled cross section is fixedly arranged at an included angle between the end surface of the fixed column 5 facing the row pile 2 and the fixed beam 4, two mutually perpendicular side surfaces of the reinforcing block 17 are fixedly connected to the fixed column 5 and the fixed beam 4, the two reinforcing blocks 17 enhance the connection firmness between the fixed column 5 and the fixed beam 4, and reduce the possibility that the fixed column 5 is twisted and broken relative to the fixed beam 4 under the pressure action of the row pile 2 when the row pile 2 is deviated into the foundation pit 1 under the pressure of soil, thereby enhancing the stability of the integral enclosure structure; still set firmly a plurality of strengthening ribs 18 along vertical direction on the periphery of fixed column 5, strengthening rib 18 has played the effect of consolidating fixed column 5 self, has reduced the possibility of fixed column 5 distortion under two screw rod 6 shear force effects to whole envelope's stability has further been strengthened.

As shown in fig. 2, two slots 12 are further respectively formed in the fixed column 5, the two slots 12 correspond to the two screws 6 and are located on one side of the screws 6 respectively, the fixed column 5 is further provided with two rotation-resisting bolts 11 respectively in a penetrating manner and in threaded connection, the two rotation-resisting bolts 11 partially extend into the slots 12 respectively, one ends of the rotation-resisting bolts 11 located in the slots 12 are rotatably connected with rotation-resisting plates 13, the rotation-resisting plates 13 are connected with fixing plates 16 on end surfaces departing from the rotation-resisting bolts 11 through two springs 15, two ends of the springs 15 are fixedly connected to the rotation-resisting plates 13 and the fixing plates 16 respectively, non-slip mats 14 are bonded on end surfaces of the fixing plates 16 departing from the springs 15, the non-slip mats 14 can be made of elastic materials such as rubber or silica gel, and in an initial state, the springs 15 are in a natural state, and the non-. Therefore, after the screw 6 is rotated by a worker to tightly abut against the row piles 2, the worker can respectively rotate the two rotation-resisting bolts 11 to drive the anti-slip mat 14 to move towards the screw 6 until the anti-slip mat 14 and the screw 6 are tightly abutted against each other and the springs 15 are all in a compressed state, and the anti-slip mat 14 and the screw 6 are tightly abutted against each other to increase the frictional resistance when the screw 6 rotates, so that the screw 6 is not easy to loosen under the action of external force, and the stability of the screw 6 is enhanced; the arrangement of the spring 15 reduces the possibility that the anti-rotation bolt 11 is loosened under the action of external force, the anti-slip pad 14 is separated from the screw 6 under the driving of the anti-rotation bolt 11, and the screw 6 is difficult to be continuously supported tightly, so that the overall stability of the screw 6 is further enhanced.

The implementation principle of the embodiment is as follows: in the process of constructing the foundation pit 1, the two screw rods 6 can respectively abut against the row piles 2 at the two sides of the foundation pit 1 to support and fix the row piles; after the construction of foundation pit 1 is completed, the campshed 2 of both sides can remain as the permanent lateral wall of foundation pit 1, and the staff can rotate two screw rods 6 respectively and make it separate with campshed 2, later lift off fixed beam 4 whole from built-in fitting 3 through the mode of bolt dismantlement, because two screw rods 6 extend the length of fixed column 5 is adjustable, make this envelope can be applied to in the middle of the foundation pit 1 project of other different widths once more, thereby reached and carried out reuse's effect to foundation pit 1 envelope, energy-concerving and environment-protective.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a novel utility tunnel foundation ditch retaining structure, contains foundation ditch (1) and a plurality of campshed (2) of setting on foundation ditch (1) inside both sides wall, its characterized in that: the foundation pit is characterized in that embedded parts (3) are arranged on the ground along the two sides of the width direction of the foundation pit (1) respectively, two embedded parts (3) are connected with fixing beams (4) through bolts, the fixing beams (4) are integrally erected above the foundation pit (1) and are provided with fixing columns (5) towards the end face of the foundation pit (1), the fixing columns (5) are respectively penetrated and connected with two screw rods (6) through threads, the two screw rods (6) are respectively abutted against row piles (2) on the two sides of the foundation pit (1), and the two rotating heads (7) are respectively arranged at one ends, far away from the row piles (2), of the screw rods (6).

2. The novel utility tunnel foundation pit support structure of claim 1, characterized in that: the fixing column (5) is further provided with two L-shaped support frames (8), the fixing column (5) is located between the two support frames (8), and the two screw rods (6) are respectively arranged in a penetrating mode and connected to the two support frames (8) in a threaded mode.

3. The novel utility tunnel foundation pit support structure of claim 1, characterized in that: the screw rod (6) is kept away from the one end of turning round (7) and is rotated and be connected with and support tight piece (9), support tight piece (9) and be equipped with rubber block (10) on deviating from the terminal surface of screw rod (6), rubber block (10) support tightly on screw rod (6).

4. The novel utility tunnel foundation pit support structure of claim 1, characterized in that: the fixing column (5) is further respectively penetrated and connected with two rotation resisting bolts (11) in a threaded mode, and the two rotation resisting bolts (11) are respectively abutted against the two screw rods (6).

5. The novel utility tunnel foundation pit support structure of claim 4, characterized in that: the fixing column (5) is further provided with two grooves (12) respectively, the two grooves (12) are internally provided with rotation blocking plates (13) respectively, one ends, facing the screw rods (6), of the two rotation blocking bolts (11) are connected to the two rotation blocking plates (13) in a rotating mode respectively, anti-skid pads (14) are arranged on end faces, deviating from the rotation blocking bolts (11), of the two rotation blocking plates (13) respectively, and the two anti-skid pads (14) are abutted to the two screw rods (6) respectively.

6. The novel utility tunnel foundation pit support structure of claim 5, characterized in that: one side of the rotation resisting plate (13) departing from the screw (6) is connected with a fixing plate (16) through a plurality of springs (15), and the anti-skid pad (14) is arranged on one side of the fixing plate (16) departing from the springs (15); when the non-slip mat (14) is tightly pressed on the screw rod (6), the plurality of springs (15) are in a contraction state.

7. The novel utility tunnel foundation pit support structure of claim 1, characterized in that: and reinforcing blocks (17) are respectively arranged at included angles between the fixing columns (5) and the fixing beams (4).

8. The novel utility tunnel foundation pit support structure of claim 1, characterized in that: and a plurality of reinforcing ribs (18) are arranged on the fixing column (5).