CN216920378U - Assembled underground well soil retaining device - Google Patents

Assembled underground well soil retaining device Download PDF

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Publication number
CN216920378U
CN216920378U CN202122476816.XU CN202122476816U CN216920378U CN 216920378 U CN216920378 U CN 216920378U CN 202122476816 U CN202122476816 U CN 202122476816U CN 216920378 U CN216920378 U CN 216920378U
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China
Prior art keywords
retaining plate
retaining
base
plate mounting
soil
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Active
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CN202122476816.XU
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Chinese (zh)
Inventor
邵华君
陈元国
王小伟
何文明
陈美蓉
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Nantong Daxin Engineering Co Ltd
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Nantong Daxin Engineering Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use

Abstract

The utility model discloses an assembled underground well soil retaining device which comprises a soil retaining plate base (1), a soil retaining plate mounting groove (2) and a soil retaining plate (3); the retaining plate base is of an annular structure and is hung at the bottom of the underground well, and the outer wall of the retaining plate base is attached to the earth backfilling inner wall of the underground well; the plurality of retaining plate mounting grooves are respectively mounted on the retaining plate base at intervals, each retaining plate mounting groove is of a long strip-shaped structure with a U-shaped groove body in cross section, and the opening width of the U-shaped groove body is larger than the thickness of the retaining plate; the openings of the U-shaped groove bodies of every two retaining plate mounting grooves are oppositely arranged, so that two ends of the retaining plates are respectively embedded in the openings of the U-shaped groove bodies of the two retaining plate mounting grooves in a sliding manner; the vertical setting of fender apron mounting groove is on the fender apron base, makes the polylith keep off the native board and forms retaining wall structure by supreme concatenation in proper order down along the inner wall of underground shaft. The utility model can be quickly assembled in the foundation pit of the underground well to form a retaining wall structure, thereby ensuring the safety of the foundation pit.

Description

Assembled underground well soil retaining device
Technical Field
The utility model relates to a support system of a building structure, in particular to an assembled underground well soil retaining device.
Background
Underground shafts are widely used in building construction, and include various forms such as basement water collecting wells for collecting and storing underground water or leaking water, elevator shafts for installing elevators, and the like. After the foundation pit earthwork of the underground well is excavated, supporting systems such as retaining walls need to be constructed in time, otherwise, the foundation pit collapse can be caused, and particularly, the potential safety hazard is large in an area with poor soil conditions.
At present, there are two common methods for supporting underground wells:
1. the retaining wall is built by adopting the traditional brick moulding bed. The method has the advantages of large masonry workload, high labor cost, more wet operation and lower construction efficiency. Because the construction period of the method is long (3-4 days are needed), foundation pit collapse may exist in the construction process, uncertain factors are many, and the construction period and the safety cannot be guaranteed. Under the condition of mucky soil, the brick moulding bed can not be built.
2. The retaining wall is formed by building and assembling prefabricated battens, partition walls and the like. During actual construction, a large amount of wet operation still exists at joint nodes of prefabricated battens and partition walls, and assembling stability of the joint nodes is poor; meanwhile, the prefabricated slab has large mass and needs to consume more man-machine hours.
Disclosure of Invention
The utility model aims to provide an assembled underground well retaining device which can be quickly assembled in an underground well foundation pit to form a retaining wall structure and ensure the safety of the foundation pit.
The utility model is realized by the following steps:
a split mounting type underground well soil retaining device comprises a soil retaining plate base, a soil retaining plate mounting groove and a soil retaining plate; the retaining plate base is of an annular structure and is hung at the bottom of the underground well, and the outer wall of the retaining plate base is attached to the earth backfilling inner wall of the underground well; the plurality of retaining plate mounting grooves are respectively mounted on the retaining plate base at intervals, each retaining plate mounting groove is of a long strip-shaped structure with a U-shaped groove body in section, and the opening width of the U-shaped groove body of each retaining plate mounting groove is larger than the thickness of the retaining plate; the openings of the U-shaped groove bodies of every two retaining plate mounting grooves are oppositely arranged, so that two ends of the retaining plates are respectively embedded in the openings of the U-shaped groove bodies of the two retaining plate mounting grooves in a sliding manner; the vertical setting of fender apron mounting groove is on the fender apron base, makes the polylith keep off the native board and forms retaining wall structure by supreme concatenation in proper order down along the inner wall of underground shaft.
The soil guard plate base on be equipped with the level and add the armpit piece, level adds armpit piece and soil guard plate base structure as an organic whole.
The horizontal haunch block is arranged at the inner side of the corner of the retaining plate base, and the retaining plate mounting groove is arranged at the corner of the retaining plate base.
The base of the retaining plate is a concrete frame beam, frame beam steel bars are arranged in the concrete frame beam, and the frame beam steel bars are formed by binding main bars and stirrups; the bottoms of the retaining plate mounting grooves are all pre-buried in the concrete frame beam, so that the retaining plate mounting grooves and the retaining plate base are connected into an integral structure.
The top surface of retaining plate mounting groove on pre-buried have rings, a plurality of rings are located the corner of retaining plate mounting groove respectively, and rings are located the side of retaining plate mounting groove.
The soil retaining plate is a concrete precast slab, precast slab steel bars are arranged in the concrete precast slab, and the precast slab steel bars are formed by binding main bars and longitudinal bars.
Compared with the prior art, the utility model has the following beneficial effects:
1. the retaining wall base is arranged, so that the lifting is convenient, a stable inner support can be formed at the bottom of the foundation pit, a reliable bottom support is provided for a retaining wall structure formed by splicing retaining plates, and the stability of the retaining wall is improved, so that the construction safety of the foundation pit is ensured, and the site wet operation and the site environment pollution caused by the wet operation are reduced.
2. The retaining wall structure can be quickly assembled according to the height of the underground well foundation pit due to the retaining plate mounting grooves and the retaining plates, the retaining effect is good, the problem of foundation pit collapse is effectively avoided, particularly in areas with poor construction conditions such as mucky soil and the like, the construction safety of the foundation pit is ensured, and meanwhile, the problem of poor connection stability of the joints of the retaining plates is also avoided.
3. The utility model adopts the prefabricated retaining plate base and the retaining plate, can be cast and molded according to the design size of the foundation pit of the underground well, has convenient and quick assembly, avoids the low-efficiency construction of wet operation and manual masonry brick moulding bed, and greatly improves the construction efficiency and the construction quality of the foundation pit inner support system on the basis of forming the reliable inner support system at the inner side of the foundation pit.
4. The utility model can be suitable for foundation pits with different shapes, is convenient to disassemble, assemble and hoist, has small self weight, can be used circularly, and reduces the construction cost.
The utility model can be quickly assembled through the retaining plate and the retaining plate mounting groove on the inner side of the underground well foundation pit to form a retaining wall structure, saves about 80% of time compared with the traditional construction mode, greatly improves the construction efficiency and quality, and reduces the labor cost and the construction cost on the basis of ensuring the construction safety of the foundation pit.
Drawings
FIG. 1 is a perspective view of a sectional type earth retaining device for a subterranean well according to the present invention;
FIG. 2 is a perspective view of a soil guard base and a soil guard mounting groove in the assembled type soil guard device for a subterranean well according to the present invention;
FIG. 3 is a cross-sectional view of a soil guard base in the assembled subterranean well soil guard apparatus of the present invention;
fig. 4 is a sectional view of a soil guard plate in the assembled type subterranean well soil guard device of the present invention.
In the figure, 1 keeps off the breast board base, 2 keeps off the breast board mounting groove, 3 keeps off the breast board, 4 level haunched blocks, 5 rings, 6 frame roof beam reinforcing bars, 7 keeps off the breast board reinforcing bars.
Detailed Description
The utility model is further described with reference to the following figures and specific examples.
Referring to fig. 1 and 2, a split mounting type earth retaining device for an underground well includes an earth retaining plate base 1, an earth retaining plate mounting groove 2 and an earth retaining plate 3; the retaining plate base 1 is of an annular structure, the retaining plate base 1 is hoisted at the bottom of a foundation pit of the underground well, and the outer wall of the retaining plate base 1 is attached to the earth backfill inner wall of the underground well; a plurality of retaining plate mounting grooves 2 are respectively mounted on the retaining plate base 1 at intervals, each retaining plate mounting groove 2 is of a long strip-shaped structure with a U-shaped groove body in section, and the opening width of the U-shaped groove body of each retaining plate mounting groove 2 is slightly larger than the thickness of each retaining plate 3; the openings of the U-shaped groove bodies of every two retaining plate mounting grooves 2 are oppositely arranged, so that two ends of the retaining plate 3 are respectively embedded in the openings of the U-shaped groove bodies of the two retaining plate mounting grooves 2 in a sliding manner; the vertical setting of fender apron mounting groove 2 makes polylith fender apron 3 form retaining wall structure by supreme concatenation in proper order down along the foundation ditch inner wall of underground shaft on fender apron base 1, provides reliable support for the foundation ditch.
Referring to fig. 2 and fig. 3, the horizontal haunching blocks 4 are arranged on the retaining plate base 1, and the horizontal haunching blocks 4 and the retaining plate base 1 are of an integral structure, so that the structural strength of the corners of the retaining plate base 1 can be improved, and the retaining effect on the soil body at the bottom of the foundation pit can be improved.
Referring to fig. 2 and 3, the horizontal haunch block 4 is disposed at the inner side of the corner of the retaining plate base 1, and the retaining plate mounting groove 2 is disposed at the corner of the retaining plate base 1, thereby improving the mounting stability of the retaining plate mounting groove 2.
Referring to fig. 3, the retaining plate base 1 is a concrete frame beam, frame beam steel bars 6 are arranged in the concrete frame beam, and the frame beam steel bars 6 are formed by binding main bars and stirrups; the bottoms of the retaining plate mounting grooves 2 are all pre-buried in the concrete frame beam, so that the retaining plate mounting grooves 2 and the retaining plate base 1 are connected into an integral structure. Concrete frame roof beam and frame roof beam reinforcing bar 6 thereof can improve the structural strength who keeps off native board base 1, ensures to keep off the native effect, has also improved the installation stability who keeps off native board mounting groove 2 simultaneously, ensures the concatenation stability of keeping off native board 3 and the connection reliability of keeping off native board 3 joint node.
Referring to fig. 2, rings 5 are embedded in the top surface of the retaining plate mounting groove 2, the rings 5 are respectively located at the corners of the retaining plate mounting groove 2, and the rings 5 are located beside the retaining plate mounting groove 2. The hoisting ring 5 can be directly connected with hoisting equipment such as a tower crane and the like through a hoisting rope, so that the hoisting in the underground well foundation pit is facilitated, the hoisting process is stable, and the installation position of the hoisting ring 5 is required to avoid interference in the installation of the retaining plates 3 between the two retaining plate installation grooves 2.
Referring to fig. 4, the retaining plate 3 is a concrete precast slab, precast slab steel bars 7 are arranged in the concrete precast slab, and the precast slab steel bars 7 are formed by binding main bars and longitudinal bars, so that the structural strength of the retaining plate 3 can be improved, and the retaining effect can be ensured.
Referring to fig. 1 to 4, the manufacturing method of the present invention is:
step 1: the size of the retaining plate base 1 is determined according to the design drawing of the underground well, so that the retaining plate base 1 can be matched and hoisted to the bottom of a foundation pit of the underground well. The manufacturing process of the retaining plate base 1 comprises steel bar blanking, binding, formwork erecting, concrete pouring and maintaining. The retaining plate base 1 is cast by concrete with the specification of more than C30, has high strength and ensures the retaining force effect.
When the reinforcement forms frame roof beam reinforcing bar 6, will keep off the lower extreme ligature of breast board mounting groove 2 or welded fastening on frame roof beam reinforcing bar 6, the quantity and the mounted position of retaining board mounting groove 2 can be confirmed according to the design drawing of underground shaft. The retaining plate mounting groove 2 can adopt 8# channel steel, and the length of the retaining plate mounting groove 2 can be determined according to the depth of a foundation pit of the underground well.
When concrete placement, pour rings 5 in step in retaining board base 1, the hoist and mount of retaining board base 1 of being convenient for, the atress when guaranteeing the hoist and mount is even and stable, and does not influence the grafting of retaining board 3 between two retaining board mounting grooves 2 and assemble.
Step 2: the size of the retaining plate 3 is determined according to the design drawing of the underground well, and the manufacturing process of the retaining plate 3 comprises steel bar blanking, binding, formwork erecting, concrete pouring and maintenance. The retaining plate 3 is cast by concrete with the specification of more than C30, has high strength and ensures the retaining force effect.
Referring to fig. 1 to 4, the application method of the present invention is:
step 1: when the support system is supported in the construction in the sump pit of the sump pit that the cross-section is the rectangle, four rings 5 are connected to the tower crane through four lifting ropes respectively, with the cyclic annular fender apron base 1 of rectangle through the tower crane according to installation construction unwrapping wire position four corners hoist to the excavation in the foundation pit of accomplishing, the outer wall of fender apron base 1 and the matching of the earthwork backfill inner wall of sump pit are laminated.
Step 2: every corner that keeps off native board base 1 all is equipped with two and keeps off native board mounting groove 2, and the U-shaped groove body opening direction of two fender native board mounting grooves 2 sets up along the length of side of keeping off native board base 1 respectively, and the U-shaped groove body opening direction mutually perpendicular of two fender native board mounting grooves 2.
And step 3: insert the both ends that will keep off the native board 3 respectively from top to bottom to two keep off the opening of the U-shaped cell body of native board mounting groove 2 in, keep off native board 3 and set up perpendicularly on keeping off native board base 1. The opening width of the U-shaped groove body is about 3cm larger than the thickness of the retaining plate 3, so that the retaining plate 3 can be conveniently disassembled and assembled.
And 4, step 4: according to the foundation ditch degree of depth of sump pit, will keep off native board 3 and vertically assemble in proper order on retaining plate base 1 through retaining plate mounting groove 2, make retaining plate 3 form the retaining wall structure of suitable height in the foundation ditch inboard, reach the effect of effectual fender soil.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a pin-connected panel underground well keeps off native device which characterized by: comprises a retaining plate base (1), a retaining plate mounting groove (2) and a retaining plate (3); the retaining plate base (1) is of an annular structure, the retaining plate base (1) is hoisted at the bottom of the underground well, and the outer wall of the retaining plate base (1) is attached to the earth backfill inner wall of the underground well; a plurality of retaining plate mounting grooves (2) are respectively mounted on the retaining plate base (1) at intervals, each retaining plate mounting groove (2) is of a long strip-shaped structure with a U-shaped groove body in section, and the opening width of the U-shaped groove body of each retaining plate mounting groove (2) is larger than the thickness of each retaining plate (3); the openings of the U-shaped groove bodies of every two retaining plate mounting grooves (2) are oppositely arranged, so that the two ends of the retaining plate (3) are respectively embedded in the openings of the U-shaped groove bodies of the two retaining plate mounting grooves (2) in a sliding manner; the vertical setting of fender apron mounting groove (2) is on fender apron base (1), makes polylith fender apron (3) form the retaining wall structure by supreme concatenation in proper order down along the inner wall of underground shaft.
2. A split mounting type underground well soil retaining device according to claim 1, wherein: the soil retaining plate base (1) is provided with a horizontal haunch block (4), and the horizontal haunch block (4) and the soil retaining plate base (1) are of an integral structure.
3. A split mounting type underground well soil retaining device according to claim 2, wherein: the horizontal haunch block (4) is arranged at the inner side of the corner of the retaining plate base (1), and the retaining plate mounting groove (2) is arranged at the corner of the retaining plate base (1).
4. A split type subterranean well soil guard device according to any one of claims 1 to 3, wherein: the soil retaining plate base (1) is a concrete frame beam, frame beam steel bars (6) are arranged in the concrete frame beam, and the frame beam steel bars (6) are formed by binding main reinforcements and stirrups; the bottoms of the retaining plate mounting grooves (2) are all pre-buried in the concrete frame beam, so that the retaining plate mounting grooves (2) and the retaining plate base (1) are connected into a whole.
5. A split type subterranean well soil guard device according to claim 1 or 3, wherein: the top surface of retaining plate mounting groove (2) on pre-buried have rings (5), a plurality of rings (5) are located the corner department of retaining plate mounting groove (2) respectively, and rings (5) are located the side of retaining plate mounting groove (2).
6. A split mounting type underground well soil retaining device according to claim 1, wherein: the soil retaining plate (3) is a concrete precast slab, precast slab steel bars (7) are arranged in the concrete precast slab, and the precast slab steel bars (7) are formed by binding main bars and longitudinal bars.
CN202122476816.XU 2021-10-14 2021-10-14 Assembled underground well soil retaining device Active CN216920378U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122476816.XU CN216920378U (en) 2021-10-14 2021-10-14 Assembled underground well soil retaining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122476816.XU CN216920378U (en) 2021-10-14 2021-10-14 Assembled underground well soil retaining device

Publications (1)

Publication Number Publication Date
CN216920378U true CN216920378U (en) 2022-07-08

Family

ID=82222932

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122476816.XU Active CN216920378U (en) 2021-10-14 2021-10-14 Assembled underground well soil retaining device

Country Status (1)

Country Link
CN (1) CN216920378U (en)

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