CN217231841U

CN217231841U - Foundation pit support for building construction

Info

Publication number: CN217231841U
Application number: CN202123164662.7U
Authority: CN
Inventors: 钟木桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-08-19
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a excavation supporting for construction belongs to building technical field, including base and the connecting plate of base pin joint, the upper surface of base is seted up slottedly, and the degree of depth in groove equals with the thickness of connecting plate, the connecting plate is located the upper surface in groove and is connected with the base through the pin, the upper surface joint of connecting plate has the picture peg, and the junction of connecting plate and picture peg has seted up the anchor eye, it has the stock to peg graft in the anchor eye, and the front end surface of stock is equipped with the expansion piece. The integrated supporting structure is used for protecting the pit wall after the foundation pit is excavated, the stability of the soil body around the foundation pit can be effectively guaranteed, the requirement that sufficient space exists in underground construction is met, the necessary conditions of earthwork excavation and underground construction are met, and facilities such as adjacent buildings, underground pipelines and the like around the foundation pit are guaranteed not to be damaged during foundation pit supporting and basement construction, so that the vertical and horizontal displacement of the ground and the underground soil body is within an allowable range.

Description

Foundation pit support for building construction

Technical Field

The utility model belongs to the technical field of the building, specifically speaking relates to an excavation supporting for construction.

Background

At present, a foundation pit refers to a space below the ground excavated for the construction of a building foundation and a basement. The foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit.

Current excavation supporting has certain drawback when using, and current excavation supporting is used for steel sheet pile and shaped steel stake as deep basal pit supporting technique more, all is comparatively bulky when using steel sheet pile and shaped steel stake, and is comparatively loaded down with trivial details during the operation, and the user of being not convenient for operates, influences user of service's work efficiency to it is comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

To current excavation supporting device be used for the steel sheet pile more often and all comparatively heavy, comparatively loaded down with trivial details problem during the operation, the utility model provides an excavation supporting for construction is strutted the foundation ditch through disjunctor formula supporting device, adds the height that anchor rod matched with mode can prolong supporting device through the butt joint, can solve traditional steel sheet pile and all comparatively heavy, comparatively loaded down with trivial details problem during the operation.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a foundation ditch support for construction, includes base and the connecting plate with the base pin joint, the upper surface of base is seted up slottedly, and the degree of depth in groove equals with the connecting plate thickness, the connecting plate is located the upper surface in groove and is connected with the base through the pin, the upper surface joint of connecting plate has the picture peg, and the junction of connecting plate and picture peg has seted up the anchor eye, it has the stock to peg graft in the anchor eye, and the front end surface of stock is equipped with the expansion piece.

Preferably, the upper surface and the lower surface of the inserting plate and the upper surface of the connecting plate are provided with butt joint grooves, the butt joint grooves on the upper surface and the lower surface of the inserting plate are arranged in a staggered mode, the butt joint grooves on the lower surface of the inserting plate are complementary with the butt joint grooves on the upper surface of the connecting plate, and the anchor holes are formed in the butt joint grooves.

Preferably, the anterior segment of stock is solid circular cone column structure, and the stock back end is hollow structure, the through-hole has been seted up on the cavity section of expansion piece, and the expansion piece pin joint is on the through-hole of cavity section.

Preferably, the inside of stock is equipped with the screw rod, and the activity cup joints movable nut on the screw rod, and the pin joint has the connecting rod on movable nut, the top pin joint of connecting rod is on the expansion piece, be equipped with fixation nut in the stock simultaneously, and screw rod threaded connection is on fixation nut.

Preferably, the holding tank has been seted up to the upper surface symmetry of base, and the pin joint has the bracing piece in the holding tank all be equipped with the round pin piece on picture peg and the connecting plate, and the bracing piece passes through the round pin piece on the connecting plate and is connected with the connecting plate.

Preferably, be connected with the fastener on the bracing piece, and cup jointed first crossbeam on the fastener, the loop bar has been cup jointed to the center department of first crossbeam, and the upper surface pin joint of loop bar is on the round pin piece of picture peg, the lower extreme outside of loop bar has violently been inserted the second crossbeam, and the second crossbeam is fixed on the bracing piece through the fastener equally.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) in the utility model, the pit wall after the foundation pit is excavated is protected by the integrated supporting structure, the stability of the soil around the foundation pit can be effectively ensured, the requirement of sufficient space for underground construction is met, the necessary conditions of earthwork excavation and underground construction are met, and facilities such as adjacent buildings, underground pipelines and the like around the foundation pit are not damaged during the foundation pit supporting and basement construction, namely, the deformation of the soil of the pit wall is ensured, so that the vertical and horizontal displacement of the ground and the underground soil is in an allowable range, the integrated structure is also favorable for use and transportation, wherein the connecting plate is directly attached to the pit wall as a soil retaining plate to play a supporting role, the base provides a supporting force and a friction force, a wedge can be additionally arranged through a hole in the actual use process for playing a fixing role, meanwhile, the supporting rod is arranged on the base and is used for being fixed on the connecting plate for supporting during the use, and set up slottedly on the base when the transportation and can hold the connecting plate, set up the holding tank again in the inslot and be used for placing the bracing piece, fold whole strutting arrangement like this and can effectively reduce area, be convenient for transport and place.

(2) In the utility model, the depth of the foundation pit is different in the actual use process, so the foundation pit supporting device is also provided with the inserting plate for heightening the supporting device, the structures of the inserting plate and the connecting plate are the same, further consideration is given to the direct butt joint of the inserting plate and the connecting plate, the underground water of the foundation pit can seep out from the connecting seam, so that the soil is brought out along with the inserting plate, the foundation pit is collapsed, therefore, the butt joint groove is arranged at the joint of the inserting plate and the connecting plate for strengthening the connection, the staggered connection structure can effectively prevent the soil from seeping out along with the underground water, further, the stability of the connection is ensured, the anchor rod is arranged at the joint of the inserting plate and the connecting plate, the anchor rod can not only connect the inserting plate and the connecting plate, but also be inserted in the side wall of the foundation pit, the supporting device is tightly connected with the stratum through the anchor rod, the tensile force of the shearing strength transmission structure object of the anchor rod and the surrounding stratum or the stratum self is reinforced, in order to keep the stability of supporting device and foundation ditch, simultaneously in order to increase the resistance to plucking ability of stock, set up the expansion piece on the stock, the expansion piece passes through the screw rod and drives and can expand or contract for increase the area of contact with earth.

(3) The utility model discloses in, further consolidate supporting device's stability through fastener, loop bar and two crossbeams, one of them crossbeam is connected the bracing piece, make it form a wholeness, increase stability, provide connected node for the loop bar simultaneously, when the loop bar is connected on one of them crossbeam, use another crossbeam to retrain the loop bar, prevent its displacement and provide certain holding power, the crossbeam all adopts the fastener to connect, obtain more easily at the construction site, supporting device's cost has further been reduceed.

Drawings

Fig. 1 is a schematic view of a foundation pit supporting structure for building construction in the utility model;

fig. 2 is a schematic view of the internal structure of the anchor rod of the present invention;

fig. 3 is a rear view of the middle supporting device of the utility model.

The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows: 1. a butt joint groove; 2. inserting plates; 3. a base; 4. a connecting plate; 5. an anchor rod; 6. an anchor eye; 7. an expansion sheet; 8. fixing a nut; 9. a screw; 10. a movable nut; 11. a connecting rod; 12. a fastener; 13. accommodating grooves; 14. a first cross member; 15. a support bar; 16. a second cross member; 17. a loop bar; 18. a pin sheet.

Detailed Description

The present invention will be further described with reference to the following detailed description.

The foundation pit support for building construction provided in the diagram 1 comprises a base 3 and a connecting plate 4 in pin joint with the base 3, wherein a groove is formed on the upper surface of the base 3 for facilitating the folding of the connecting plate 4, the depth of the groove is equal to the thickness of the connecting plate 4, the connecting plate 4 is positioned on the upper surface of the groove and is connected with the base 3 through a pin, the connecting plate 4 forms an integral structure with the base 3 through the pin for facilitating transportation and installation, the connecting plate 4 is placed in the groove on the upper surface of the base 3 for completing folding under the condition of non-use, in order to adapt to different foundation pit depths, the connecting plate 4 cannot be completely met, therefore, an inserting plate 2 is clamped on the upper surface of the connecting plate 4 for prolonging the length of the support device, further, in order to ensure the connectivity between the connecting plate 4 and the inserting plate 2, an anchor hole 6 is formed at the joint of the connecting plate 4 and the inserting plate 2, an anchor rod 5 is inserted in the anchor hole 6, the inserting plate 2 and the connecting plate 4 can be connected through the anchor rod 5, the tension of a structure is transferred or the stratum is reinforced depending on the shear strength of the anchor rod 5 and the surrounding stratum, so that the stability of the supporting device and a foundation pit is kept, meanwhile, in order to increase the pulling resistance of the anchor rod 5, the expansion piece 7 is arranged on the anchor rod 5, the contact area with soil is increased, the inserting plate 2 is directly butted with the connecting plate 4, the underground water of the foundation pit can seep out from a connecting seam, so that the soil is brought out along with the underground water, the foundation pit collapses, a butt joint groove 1 is formed at the joint of the inserting plate 2 and the connecting plate 4 for strengthening connection, the staggered and complementary connecting structure can effectively prevent the soil from seeping out along with the underground water, and further, in order to ensure the stability of connection, the anchor hole 6 is arranged on the butt joint groove 1 to play a role in connectivity.

In fig. 2, the front section of the anchor rod 5 is designed to be a solid conical structure due to breaking the foundation pit soil, the rear section of the anchor rod 5 is designed to be a hollow structure due to the structure of the expansion sheet 7, a through hole for the expansion sheet 7 to move is formed in the hollow section of the expansion sheet 7, a screw 9 is arranged in the anchor rod 5, a movable nut 10 is movably sleeved on the screw 9, a connecting rod 11 is connected to the movable nut 10 in a pin joint manner, the top end of the connecting rod 11 is connected to the expansion sheet 7 in a pin joint manner, a fixed nut 8 is arranged in the anchor rod 5, the screw 9 is in threaded connection with the fixed nut 8, the screw 9 is stabilized by the fixed nut 8 through rotating the screw 9, the movable nut 10 connected to the front end of the screw 9 moves back and forth when the screw 9 rotates, the expansion sheet 7 is driven by the connecting rod 11 to change the opening and closing angle through the back and forth movement of the movable nut 10, when the anchor rod 5 goes deep into the soil layer, the expansion of the expansion sheet 7 is controlled to increase the contact area with the soil, and the resistance to plucking is improved.

In fig. 1 and 3, the upper surface of the base 3 is symmetrically provided with accommodating grooves 13, supporting rods 15 are pinned in the accommodating grooves 13, the accommodating grooves 13 are used for providing placing points for the supporting rods 15, pin pieces 18 are respectively arranged on the inserting plate 2 and the connecting plate 4, the supporting rods 15 are connected with the connecting plate 4 through the pin pieces 18 on the connecting plate 4, the supporting rods 15 are abutted against the connecting plate 4 to play a supporting role and are connected through the pin pieces 18, fasteners 12 are connected onto the supporting rods 15, first cross beams 14 are sleeved on the fasteners 12, loop bars 17 are sleeved at the centers of the first cross beams 14, the upper surfaces of the loop bars 17 are pinned on the pin pieces 18 of the inserting plate 2, second cross beams 16 are transversely inserted outside the lower ends of the loop bars 17, the second cross beams 16 are also fixed on the supporting rods 15 through the fasteners 12, the first cross beams 14 connect the supporting rods 15, so that the supporting rods 15 form an integrity and the stability is increased, simultaneously for loop bar 17 provides connected node, when loop bar 17 connects on first crossbeam 14, second crossbeam 16 retrains loop bar 17, prevents that second crossbeam 16 displacement from providing certain holding power, and first crossbeam 14 and second crossbeam 16 all adopt fastener 12 to connect, obtain more easily at the construction site, have further reduced strutting arrangement's cost.

The working principle is as follows: when the device is used, the device is placed in a foundation pit and opened, the connecting plate 4 is attached to the inner wall of the foundation pit, the supporting rod 15 is taken out of the butt joint groove 1, the upper end of the supporting rod 15 is connected with the pin piece 18 on the connecting plate 4, then the first cross beam 14 is fixed on the supporting rod 15 through the fastener 12, the supporting rod is integrated and is improved in stability, a connecting node is provided for the loop rod 17, when the loop rod 17 is connected to the first cross beam 14, the second cross beam 16 restrains the loop rod 17, the second cross beam 16 is prevented from displacing and provides a certain supporting force, when the height of the foundation pit is higher, the inserting plate 2 is used for heightening the supporting device, the inserting plate 2 is directly butted with the connecting plate 4, underground water of the foundation pit can seep out of a connecting joint, so that soil is brought out along with the inserting plate, the foundation pit collapses, and the butt joint groove 1 is formed at the connecting position of the inserting plate 2 and the connecting plate 4, the anchor rod 5 is used for strengthening connection, the staggered and complementary connecting structure can effectively prevent soil from seeping along with underground water, further, the connection stability is guaranteed, meanwhile, the inserting plate 2 and the connecting plate 4 can be connected through the anchor rod 5, the anchor rod 5 and the tensile force of a structure can be transmitted by means of the shear strength of the surrounding stratum or the stratum can be reinforced, the stability of a supporting device and a foundation pit can be kept, meanwhile, in order to increase the anti-pulling capacity of the anchor rod 5, the expansion piece 7 is arranged on the anchor rod 5, the screw rod 9 is stabilized by the aid of the fixing nut 8 through rotating the screw rod 9, the movable nut 10 connected to the front end of the screw rod 9 moves forwards and backwards when the screw rod 9 rotates, the expansion piece 7 is driven by the connecting rod 11 through the forward and backward movement of the movable nut 10 to change the opening and closing angle, when the anchor rod 5 goes deep into the soil layer, the expansion piece 7 is controlled to expand to increase the contact area with soil, and the anti-pulling performance is improved.

The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.

Claims

1. The utility model provides a foundation pit support for construction, includes base (3) and connecting plate (4) of pin joint with base (3), its characterized in that: the upper surface of base (3) is seted up slottedly, and the degree of depth in groove and the thickness of connecting plate (4) equal, connecting plate (4) are located the upper surface in groove and are connected with base (3) through the pin, the upper surface joint of connecting plate (4) has picture peg (2), and the junction of connecting plate (4) and picture peg (2) has seted up anchor eye (6), it has stock (5) to peg graft in anchor eye (6), and the front end surface of stock (5) is equipped with expansion piece (7).

2. The foundation pit support for building construction according to claim 1, wherein: butt joint groove (1) have all been seted up to the upper and lower two surfaces of picture peg (2) and the upper surface of connecting plate (4), and the butt joint groove (1) on two surfaces about picture peg (2) are crisscross the offering, butt joint groove (1) of picture peg (2) lower surface is complementary with butt joint groove (1) of connecting plate (4) upper surface, anchor eye (6) set up on butt joint groove (1).

3. The foundation pit support for building construction according to claim 1, wherein: the anterior segment of stock (5) is solid circular cone column structure, and stock (5) rear end is hollow structure, the through-hole has been seted up on the cavity section of expansion piece (7), and expansion piece (7) pin joint is on the through-hole of cavity section.

4. The foundation pit support for building construction according to claim 3, wherein: the anchor rod is characterized in that a screw rod (9) is arranged inside the anchor rod (5), a movable nut (10) is movably sleeved on the screw rod (9), a connecting rod (11) is connected to the movable nut (10) in a pin mode, the top end of the connecting rod (11) is connected to the expansion piece (7) in a pin mode, a fixing nut (8) is arranged in the anchor rod (5) simultaneously, and the screw rod (9) is connected to the fixing nut (8) in a threaded mode.

5. The foundation pit support for building construction according to claim 1, wherein: holding tank (13) have been seted up to the upper surface symmetry of base (3), have sold bracing piece (15) in holding tank (13) all be equipped with round pin piece (18) on picture peg (2) and connecting plate (4), and round pin piece (18) and connecting plate (4) connection on bracing piece (15) pass through connecting plate (4).

6. The foundation pit support for building construction according to claim 5, wherein: be connected with fastener (12) on bracing piece (15), and cup jointed first crossbeam (14) on fastener (12), loop bar (17) have been cup jointed in the center department of first crossbeam (14), and the upper surface pin joint of loop bar (17) is on round pin piece (18) of picture peg (2), second crossbeam (16) have transversely been inserted to the lower extreme outside of loop bar (17), and second crossbeam (16) are fixed on bracing piece (15) through fastener (12) equally.