CN211200398U

CN211200398U - Tripod formula supporting construction for foundation ditch engineering

Info

Publication number: CN211200398U
Application number: CN201921916410.5U
Authority: CN
Inventors: 周彬; 宁卫强; 仲锦元
Original assignee: CRCC Suzhou Design and Research Institute Co Ltd
Current assignee: CRCC Suzhou Design and Research Institute Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-07
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a tripod supporting construction for foundation ditch engineering, including waist roof beam, guan liang, backplate and overlap joint roof beam, the outside top and the bottom of waist roof beam all are four sliding sleeves of group of ring array fixedly connected with, and the open end top of four sliding sleeves of group all is vertical sliding sleeve and has the spacing post of inserting that runs through the sliding sleeve, the outside of waist roof beam is provided with the backplate, one side fixed connection guanliang of sliding sleeve is close to in the outside of backplate. The utility model discloses in, at first, adopt three angie type supporting construction, steerable littleer supporting construction displacement under the condition of same support interval, to the same supporting construction displacement, can suitably increase the support interval, tripod type supporting construction self stability and shear are stronger than single-legged type supporting construction simultaneously, secondly, adopt the adjustable structure of combination, can carry out supporting device's regulation installation according to actual pit foundation construction demand and handle to supporting construction's adjustability and suitability have been promoted.

Description

Tripod formula supporting construction for foundation ditch engineering

Technical Field

The utility model relates to a supporting construction technical field for the foundation ditch engineering especially relates to a tripod supporting construction for foundation ditch engineering.

Background

The measures of soil retaining structure, underground water control, environmental protection and the like required for ensuring the safety and stability of the underground space formed by downward excavation of the ground during the construction of the underground structure are called foundation pit engineering. The foundation pit engineering is a system engineering integrating geological engineering, geotechnical engineering, structural engineering and geotechnical testing technology. The main content is as follows: engineering investigation, supporting structure design and construction, earth excavation and backfilling, underground water control, information construction, surrounding environment protection and the like. The simplest and most economical method for foundation pit construction is slope excavation, but the method is often limited by site conditions and the surrounding environment, so that a supporting system needs to be designed to ensure the smooth construction and better protect the surrounding environment.

The single-foot support with the chamfer angle is the mainstream of a foundation pit supporting structure, but the supporting structure still has the following defects: firstly, the distance between adjacent supports is small, which hinders the soil-out efficiency of the deep foundation pit; when a larger supporting distance is adopted, the requirement on maintaining the rigidity of the wall body is higher, secondly, the traditional supporting structure is difficult to disperse the stress concentration phenomenon at the supporting position, and the overall stability and the shearing resistance of the supporting structure are poorer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the three-leg supporting structure for the foundation pit engineering is provided for solving the problems that the adjacent supporting distance of the traditional supporting structure is small, and the integral stability and the shearing resistance are poor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tripod supporting construction for foundation ditch engineering, includes waist rail, guan liang, backplate and overlap joint roof beam, the outside top and the bottom of waist rail all are four sets of sliding sleeves of annular array fixedly connected with, and the open end top of four sets of sliding sleeves all is vertical sliding sleeve and has the spacing post of inserting that runs through the sliding sleeve, the outside of waist rail is provided with the backplate, one side fixed connection guanliang that the sliding sleeve is close to in the outside of backplate, and the two sets of sloping of symmetry fixedly connected with between guanliang and the backplate, the inboard sliding of sliding sleeve has the overlap joint roof beam.

As a further description of the above technical solution:

and the outer side of the bottom end of the waist beam is connected with a limiting stud in a screwing manner.

As a further description of the above technical solution:

the piece is assembled to the top fixedly connected with of waist rail, and assembles the interior table wall of outer table wall and waist rail of piece and laminate each other, assemble one side that the inside of piece is close to spacing double-screw bolt and seted up the preformed hole.

As a further description of the above technical solution:

the outer end face of the guard plate is provided with a sawtooth groove.

As a further description of the above technical solution:

the outer surface walls of the lap-joint beam and the crown beam are mutually attached to the inner surface wall of the sliding sleeve.

As a further description of the above technical solution:

the inside of overlap joint roof beam and hat roof beam is close to spacing one side of inserting the post and all sets up the spacing jack that the multiunit is horizontal distribution, and spacing jack and spacing post of inserting are transition fit.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. in the utility model, a triangular supporting structure is adopted, and two groups of oblique beams are symmetrically and fixedly connected between the crown beam and the guard plate, so that the crown beam and the guard plate form a stable triangular supporting structure integrally, the structure effectively disperses the stress concentration phenomenon at the supporting position and improves the stress condition of the crown beam or the waist beam; smaller supporting structure displacement can be controlled under the condition of the same supporting distance, the supporting distance can be properly increased for the same supporting structure displacement, and the construction cost is saved; the three-leg supporting structure is stronger in self stability and shearing resistance than the single-leg supporting structure.

2. In the utility model, a combined adjustable structure is adopted, the top of the opening end of the sliding sleeve is embedded with a limit inserting column which runs through the sliding sleeve in a sliding way, a plurality of groups of limit inserting holes are arranged in the crown beam and the lap beam, when the distance between the guard plate and the waist beam needs to be adjusted, the crown beam is subjected to sliding adjustment treatment in the horizontal direction in the sliding sleeve, after the proper distance is adjusted, the limit inserting column can be inserted into the limit inserting hole at the appointed position, the adjustment treatment of the distance between the waist beam and the guard plate is completed, according to the building requirement between the two groups of waist beams, the lap beam with the appointed length is inserted between the sliding sleeves of the two groups of waist beams, after the distance between the two groups of waist beams is adjusted, the limit inserting column can be inserted into the limit inserting hole at the appointed position, the adjustment and the fixing treatment of the distance between the waist beam and the waist beam are completed, the structure can carry out adjustment installation treatment of the supporting device according to the, thereby the adjustability and the suitability of supporting construction have been promoted.

Drawings

Fig. 1 shows a front view provided in accordance with an embodiment of the present invention;

fig. 2 shows a top view provided in accordance with an embodiment of the present invention;

fig. 3 shows a schematic structural diagram of a wale and a splicing block provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a wale; 2. assembling blocks; 201. reserving a hole; 3. a limiting stud; 4. a sliding sleeve; 5. a crown beam; 501. an oblique beam; 6. a guard plate; 601. a sawtooth groove; 7. overlapping the beams; 8. limiting and inserting the column; 9. limiting the jacks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a tripod formula supporting construction for foundation ditch engineering, including waist rail 1, hat roof beam 5, backplate 6 and overlap joint roof beam 7, waist rail 1's outside top and bottom all are four sliding sleeve 4 of group of annular array fixedly connected with, and the open end top of four sliding sleeve 4 of group all is vertical sliding sleeve and has the spacing post 8 of inserting that runs through sliding sleeve 4, waist rail 1's the outside is provided with backplate 6, one side fixed connection hat roof beam 5 that sliding sleeve 4 is close to in backplate 6 outside, and two sets of sloping 501 of symmetry fixedly connected with between hat roof beam 5 and the backplate 6, the inboard sliding sleeve of sliding sleeve 4 has overlap joint roof beam 7.

Specifically, as shown in fig. 1-3, the bottom outside of waist rail 1 closes soon and is connected with spacing double-screw bolt 3, piece 2 is assembled to the top fixedly connected with of waist rail 1, and the exterior wall of assembling piece 2 and the interior table wall of waist rail 1 are laminated each other, assemble one side that piece 2's inside is close to spacing double-screw bolt 3 and seted up preformed hole 201, sawtooth groove 601 has been seted up to the outer terminal surface of backplate 6, assemble the setting of piece 2, be convenient for build between the vertical direction of waist rail 1 and handle, the setting of preformed hole 201, be convenient for spacing double-screw bolt 3's screw in and waist rail 1 rotation are spacing to be handled, the setting of sawtooth groove 601 has promoted the frictional force of contact between backplate 6 and the wall body, thereby the stability that backplate 6 strutted has been promoted.

Specifically, as shown in fig. 1 and 2, the outer table wall of overlap joint roof beam 7 and hat roof beam 5 all laminates with the interior table wall of sliding sleeve 4 each other, the setting of this kind of structure, the gliding stability of overlap joint roof beam 7 and hat roof beam 5 at the inboard horizontal direction of sliding sleeve 4 has been promoted, the inside of overlap joint roof beam 7 and hat roof beam 5 is close to one side of spacing post 8 of inserting and has all seted up the spacing jack 9 that the multiunit is horizontal distribution, and spacing jack 9 is transition fit with spacing post 8 of inserting, the chooseing for use of transition fit mode, the fixed stability of pegging graft between overlap joint roof beam 7 and hat roof beam 5 and the sliding sleeve 4 has been promoted.

The working principle is as follows: when in use, according to the actual construction requirement of the pit foundation, a plurality of groups of wales 1 are distributed and arranged in a rectangular array, the distance between every two wales 1 is adjusted, after the adjustment treatment, the lap beam 7 with the specified length can be inserted between the adjacent sliding sleeves 4 of the two groups of wales 1, after the adjustment to the proper position, the limit inserting column 8 on the sliding sleeve 4 can be inserted into the limit inserting hole 9 at the specified position inside the lap beam 7, so that the adjustment and construction treatment between every two wales 1 is completed, when the side wall of the pit foundation needs to be supported, a plurality of groups of guard plates 6 are inserted on the sliding sleeve 4 at the outer ring of the wale 1 through the crown beam 5, the crown beam 5 is subjected to the sliding adjustment treatment in the horizontal direction inside the sliding sleeve 4, when the outer surface wall of the guard plate 6 is contacted with the side wall of the pit foundation, the limit inserting column 8 on the specified sliding sleeve 4 can be inserted into the limit inserting hole 9 at the specified position inside, just accomplished the regulation overlap joint between wale 1 and backplate 6 and handled, just accomplished the processing of putting up of supporting construction horizontal direction, when needing to carry out the processing of putting up of vertical direction, be vertical insert the wale 1 at top on the piece 2 of assembling of wale 1, and rotate the position of two sets of wales 1 and adjust the processing, when two sets of wales 1 coincide, alright with 3 inside rotations of spacing double-screw bolt on the wale 1 at top, spacing double-screw bolt 3 just can slide in assembling 2 inside preformed holes 201, thereby the displacement of two sets of wales 1 vertical direction and the rotation of horizontal direction have been restricted.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a tripod supporting construction for foundation ditch engineering, includes waist rail (1), guan liang (5), backplate (6) and overlap joint roof beam (7), its characterized in that, the outside top and the bottom of waist rail (1) all are four sliding sleeve (4) of group of ring array fixedly connected with, and the open end top of four sliding sleeve (4) of group all is vertical slip and has spacing post (8) of inserting that runs through sliding sleeve (4), the outside of waist rail (1) is provided with backplate (6), one side fixed connection guan liang (5) that the outside of backplate (6) is close to sliding sleeve (4), and between guanliang (5) and backplate (6) symmetry fixedly connected with two sets of sloping (501), the inboard slip of sliding sleeve (4) has overlap joint roof beam (7).

2. The tripod type supporting structure for foundation pit engineering according to claim 1, wherein the outer side of the bottom end of the wale (1) is screwed with a limit stud (3).

3. The tripod supporting structure for foundation pit engineering according to claim 2, wherein the top end of the wale (1) is fixedly connected with the assembling block (2), the outer surface wall of the assembling block (2) is mutually attached to the inner surface wall of the wale (1), and one side, close to the limiting stud (3), of the inside of the assembling block (2) is provided with a reserved hole (201).

4. The tripod type supporting structure for foundation pit engineering according to claim 1, wherein the outer end surface of the guard plate (6) is provided with a sawtooth groove (601).

5. The tripod type supporting structure for foundation pit engineering according to claim 1, wherein the outer surface walls of the lap beam (7) and the crown beam (5) are attached to the inner surface wall of the sliding sleeve (4).

6. The tripod type supporting structure for foundation pit engineering according to claim 5, wherein a plurality of groups of horizontally distributed limiting insertion holes (9) are formed in the inner parts of the lap beam (7) and the crown beam (5) close to the limiting insertion columns (8), and the limiting insertion holes (9) and the limiting insertion columns (8) are in transition fit.