CN114541410A - A protector for foundation ditch excavation - Google Patents
A protector for foundation ditch excavation Download PDFInfo
- Publication number
- CN114541410A CN114541410A CN202210100858.XA CN202210100858A CN114541410A CN 114541410 A CN114541410 A CN 114541410A CN 202210100858 A CN202210100858 A CN 202210100858A CN 114541410 A CN114541410 A CN 114541410A
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- China
- Prior art keywords
- horizontal cross
- cross bracing
- steel column
- soil
- retaining curtain
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 24
- 230000001012 protector Effects 0.000 title claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 239000002689 soil Substances 0.000 claims abstract description 25
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 6
- 230000008093 supporting effect Effects 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A protective device for foundation pit excavation relates to the technical field of protective railing fixation and comprises two soil-retaining curtains formed by connecting a plurality of steel columns, two first horizontal cross bracing beams, two second horizontal cross bracing beams and a plurality of inclined struts; the soil-retaining curtain is positioned at two corresponding sides of the foundation pit and supported and connected by a first horizontal cross bracing beam and a second horizontal cross bracing beam, the first horizontal cross bracing beam is positioned at the end part of the soil-retaining curtain, and the second horizontal cross bracing beam is positioned in the middle of the soil-retaining curtain; inclined struts which play a role in stabilizing are arranged on the left side and the right side of the first horizontal cross supporting beam, the second horizontal cross supporting beam and the soil retaining curtain; and a hoisting ring for hoisting is arranged in the middle of the outer side surfaces of the end parts of the two soil-retaining curtains. The invention has the advantages of reducing construction period and earth excavation amount and being capable of being used for multiple times.
Description
Technical Field
The invention relates to the technical field of foundation pit excavation protection, in particular to a protection device for foundation pit excavation.
Background
The existing earthwork excavation protection generally adopts slope excavation, a reinforcing mesh is laid on a slope, an anchor rod is driven in, and concrete spraying is carried out for fixation, but because the geological condition difference is large, the earthwork amount for excavation slope excavation is large, the construction period is long, the quality of backfill soil is difficult to ensure that 100 percent meets the requirements, and the quality defect of the backfill soil can cause water damage and settlement in the later use period.
Therefore, the earth excavation protection device is manufactured to replace the supporting type, and the construction period and the earth excavation amount are reduced.
Disclosure of Invention
The invention aims to provide a protective device for foundation pit excavation, which has the advantages of reducing construction period and earth excavation amount and being capable of being used for multiple times.
The above object of the present invention is achieved by the following technical solutions:
a protective device for foundation pit excavation comprises two soil retaining curtains formed by connecting a plurality of steel columns, two first horizontal cross support beams, two second horizontal cross support beams and a plurality of inclined supports; the soil-retaining curtain is positioned at two corresponding sides of the foundation pit and supported and connected by a first horizontal cross bracing beam and a second horizontal cross bracing beam, the first horizontal cross bracing beam is positioned at the end part of the soil-retaining curtain, and the second horizontal cross bracing beam is positioned in the middle of the soil-retaining curtain; inclined struts which play a role in stabilizing are arranged on the left side and the right side of the first horizontal cross supporting beam, the second horizontal cross supporting beam and the soil retaining curtain; and a lifting ring for lifting is arranged on the upper surface of each steel column.
By adopting the technical scheme, two soil retaining curtains formed by mutually connecting a plurality of steel columns stand on the soil facing surface to prevent soil on two sides from collapsing, and the arrangement of the first horizontal cross bracing beam and the second horizontal cross bracing beam connects the whole protection device, so that the supporting effect is achieved, the excavation is convenient, and the construction period is shortened; the whole protection device of stability that bracing that sets up on retaining soil curtain both sides limit can be better, the setting up of rings has made things convenient for placing and taking out of protection device and has moved, has made things convenient for device's reuse.
The invention is further configured to: the steel column comprises a first connecting lug arranged on the steel column in a through-length mode and a first connecting groove arranged on the steel column in a through-length mode, the first connecting lug on the previous steel column is connected with the first connecting groove on the next steel column, multiple groups of through holes in one-to-one correspondence with the positions are evenly formed in the first connecting lug and the first connecting groove in the length direction, and the through holes penetrate through the first connecting lug and the first connecting groove through bolts to be connected and fixed.
Through adopting above-mentioned technical scheme, made things convenient for the equipment and the dismantlement of retaining soil curtain, after this protector exhausts, the steel column that retaining soil curtain can the split be a root, the building site of next needs of transportation that can be comparatively light.
The invention is further configured to: the end part and the middle part of the steel column are provided with second connecting lugs; second connecting grooves connected with the second connecting lugs are formed in the end parts of the first horizontal cross brace beam and the second horizontal cross brace beam; the second connecting convex block and the second connecting groove are provided with one-to-one corresponding through holes, and bolts penetrate through the through holes to fix the through holes and the second connecting groove.
Through adopting above-mentioned technical scheme, the setting of second connecting lug and second connecting groove has made things convenient for first horizontal cross brace roof beam and second horizontal cross brace roof beam and keeps off the connection of the steel column on both ends about the soil curtain fixed, has made things convenient for later stage the device to use later dismantlement more.
The invention is further configured to: the top of the steel column is welded with a buckling beam connecting block; the top of the retaining curtain formed by steel columns is additionally provided with a horizontal buckling beam, the horizontal buckling beam is provided with a plurality of steel column connectors connected with buckling beam connecting blocks, the steel column connectors and the buckling beam connecting blocks are provided with one-to-one corresponding holes, and anti-falling reinforcing steel bars for preventing the separation of the steel column connectors and the buckling beam connecting blocks are inserted into the holes.
By adopting the technical scheme, the arrangement of the buckling beam connecting block and the horizontal buckling beam increases the stability of the soil-retaining curtain, so that the soil-retaining curtain is firmer; the setting up of anticreep reinforcing bar can effectually prevent to detain the two separation of roof beam connecting block and level knot roof beam.
The invention is further configured to: the first horizontal cross bracing beam, the second horizontal cross bracing beam and the soil retaining curtain are respectively provided with a plurality of inclined bracing connecting screws; and the first horizontal cross bracing beam, the second horizontal cross bracing beam and the soil-retaining curtain are secondarily connected through the cross bracing connecting screw rods by using cross braces of different specifications.
Through adopting above-mentioned technical scheme, a plurality of bracing connecting screw are connected with the bracing of different specifications respectively, have strengthened this protector's stability.
The invention is further configured to: a rubber pad for preventing the second connecting lug from deforming is additionally arranged in the second connecting groove.
Through adopting above-mentioned technical scheme, the setting of rubber pad can prevent to a certain extent that the connection position of first horizontal spreader beam, second horizontal spreader beam and steel column from taking place deformation, prolongs the device's life.
In conclusion, the beneficial technical effects of the invention are as follows:
1. two soil retaining curtains formed by mutually connecting a plurality of steel columns stand on the soil-facing surface to prevent soil on two sides from collapsing, and the arrangement of the first horizontal cross bracing beam and the second horizontal cross bracing beam connects the whole protection device, so that the support effect is achieved, the excavation is convenient, and the construction period is shortened; the whole protection device of stability that bracing that sets up on retaining soil curtain both sides limit can be better, the setting up of rings has made things convenient for placing and taking out of protection device and has moved, has made things convenient for device's reuse.
2. The arrangement of the first connecting convex block and the first connecting groove and the arrangement of the second connecting convex block and the second connecting groove facilitate the connection and fixation of the device, and the later disassembly of the device after use is more convenient.
3. The arrangement of the buckling beam connecting block and the horizontal buckling beam increases the stability of the soil-retaining curtain, so that the soil-retaining curtain is firmer; the setting up of anticreep reinforcing bar can effectually prevent to detain the two separation of roof beam connecting block and level knot roof beam.
4. The rubber pad set up can prevent to a certain extent that the connection position of first horizontal spreader beam, second horizontal spreader beam and steel column from taking place deformation, extension device's life.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic composition view of a soil retaining curtain;
FIG. 4 is a schematic view of the connection of a first horizontal cross-brace beam to a steel column;
fig. 5 is an enlarged schematic view of a portion B in fig. 4.
In the figure, 1, a retaining curtain; 11. a steel column; 111. a first connection bump; 112. a first connection groove; 113. a second connection bump; 114. buckling beam connecting blocks; 12. horizontally buckling a beam; 121. a steel column connecting port; 13. a hoisting ring; 2. a first horizontal cross-brace beam; 21. a second connecting groove; 3. a second horizontal cross-brace beam; 4. a rubber pad; 5. bracing; 6. the inclined strut is connected with the screw rod; 7. and (4) anti-falling reinforcing steel bars.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1 and 2, a protective device for excavation of a foundation pit includes two soil-retaining curtains 1 formed by connecting a plurality of steel columns 11, two first horizontal cross-brace beams 2, two second horizontal cross-brace beams 3, and a plurality of diagonal braces 5; the retaining curtains 1 are positioned at two corresponding sides of a foundation pit, so that the assembly and disassembly of the retaining curtains 1 are facilitated, a first connecting bump 111 and a first connecting groove 112 are arranged on a steel column 11 in a through length mode, the first connecting bump 111 on the previous steel column 11 is connected with the first connecting groove 112 on the next steel column 11, a plurality of groups of through holes which are in one-to-one correspondence are uniformly arranged on the first connecting bump 111 and the first connecting groove 112 along the length direction, and bolts penetrate through the through holes for connection and fixation; a plurality of steel columns 11 are connected to each other to form the soil-blocking curtain 1. After this protector exhausts, keep off the steel column 11 that soil curtain 1 can split into a root, the building site of next needs of transportation that can be comparatively light.
Referring to fig. 3 and 4, second coupling protrusions 113 are provided at both end portions and a middle portion of the steel column 11; second coupling grooves 21 (refer to fig. 5) coupled with the second coupling protrusions 113 are provided at both end portions of the first horizontal wale beam 2 and the second horizontal wale beam 3; the second connecting protrusions 113 and the second connecting grooves 21 are provided with corresponding through holes, and bolts are inserted into the through holes to fix the through holes and the second connecting grooves. The first horizontal cross bracing beam 2 and the second horizontal cross bracing beam 3 are convenient to be connected and fixed with the upper steel columns 11 at the left and right ends of the soil-retaining curtain 1; the rubber pad 4 for preventing the second connecting protrusion 113 from deforming is additionally arranged in the second connecting groove 21, so that the service life of the connecting device is prolonged.
Referring to fig. 2 and 3, in order to increase the stability of the retaining curtain 1 and make the retaining curtain 1 more stable, a buckling beam connection block 114 is welded on the top of the steel column 11; the top of the retaining curtain 1 formed by the steel columns 11 is additionally provided with a horizontal buckling beam 12, the horizontal buckling beam 12 is provided with a plurality of steel column connecting ports 121 connected with buckling beam connecting blocks 114, each buckling beam connecting block 114 is provided with a hole, and an anti-falling reinforcing steel bar 7 for preventing the two from being separated is inserted into the hole. And a lifting ring 13 for lifting is arranged on the upper surface of each steel column 11.
Referring to fig. 1 and 2, a plurality of diagonal bracing connecting screws 6 are provided on the first horizontal wale beam 2, the second horizontal wale beam 3, and the soil-blocking curtain 1; the first horizontal cross bracing beam 2, the second horizontal cross bracing beam 3 and the soil-blocking curtain 1 are secondarily connected by the diagonal bracing 5 of different specifications through the diagonal bracing connecting screw 6, so that the stability of the protective device is enhanced.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (6)
1. The utility model provides a protector for be used for foundation ditch excavation which characterized in that: the soil retaining curtain comprises two soil retaining curtains (1) formed by connecting a plurality of steel columns (11), two first horizontal cross bracing beams (2), two second horizontal cross bracing beams (3) and a plurality of inclined struts (5); the soil retaining curtain (1) is positioned at two corresponding sides of the foundation pit and supported and connected by a first horizontal cross bracing beam (2) and a second horizontal cross bracing beam (3), the first horizontal cross bracing beam (2) is positioned at the end part of the soil retaining curtain (1), and the second horizontal cross bracing beam (3) is positioned in the middle of the soil retaining curtain (1); inclined struts (5) which play a role in stabilizing are arranged at the left side and the right side of the first horizontal cross bracing beam (2), the second horizontal cross bracing beam (3) and the soil retaining curtain (1); and a lifting ring (13) for lifting is arranged on the upper surface of each steel column (11).
2. A guard for excavation according to claim 1, wherein: the steel column (11) comprises a first connecting bump (111) and a first connecting groove (112), the first connecting bump (111) and the first connecting groove (112) are arranged on the steel column (11), the first connecting bump (111) on the previous steel column (11) is connected with the first connecting groove (112) on the next steel column (11), multiple groups of through holes which correspond to one another in position are uniformly formed in the first connecting bump (111) and the first connecting groove (112) along the length direction, and the through holes are connected and fixed through bolts.
3. A guard for excavation according to claim 2, wherein: the end part and the middle part of the steel column (11) are provided with second connecting lugs (113); the end parts of the first horizontal cross brace beam (2) and the second horizontal cross brace beam (3) are respectively provided with a second connecting groove (21) connected with the second connecting lug (113); the second connecting convex block (113) and the second connecting groove (21) are provided with one-to-one corresponding through holes, and bolts penetrate through the through holes to fix the two.
4. A guard for excavation according to claim 3, wherein: a buckling beam connecting block (114) is welded on the top of the steel column (11); the top of a retaining curtain (1) formed by steel columns (11) is additionally provided with a horizontal buckling beam (12), the horizontal buckling beam (12) is provided with a plurality of steel column connecting ports (121) connected with buckling beam connecting blocks (114), the steel column connecting ports (121) and the buckling beam connecting blocks (114) are provided with one-to-one corresponding holes, and anti-falling reinforcing steel bars (7) for preventing the separation of the steel column connecting ports and the buckling beam connecting blocks are inserted into the holes.
5. A guard for excavation according to claim 4, wherein: the first horizontal cross bracing beam (2), the second horizontal cross bracing beam (3) and the soil retaining curtain (1) are respectively provided with a plurality of inclined bracing connecting screws (6); and the first horizontal cross bracing beam (2), the second horizontal cross bracing beam (3) and the retaining curtain (1) are secondarily connected through the cross bracing connecting screw (6) by using cross braces (5) with different specifications.
6. A guard for excavation according to claim 3, wherein: a rubber pad (4) for preventing the second connecting bump (113) from deforming is additionally arranged in the second connecting groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210100858.XA CN114541410A (en) | 2022-01-27 | 2022-01-27 | A protector for foundation ditch excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210100858.XA CN114541410A (en) | 2022-01-27 | 2022-01-27 | A protector for foundation ditch excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114541410A true CN114541410A (en) | 2022-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210100858.XA Pending CN114541410A (en) | 2022-01-27 | 2022-01-27 | A protector for foundation ditch excavation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114541410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351724A (en) * | 2022-01-24 | 2022-04-15 | 山西二建集团有限公司 | Protective device for foundation pit excavation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206706783U (en) * | 2017-04-18 | 2017-12-05 | 唐山市建地建筑工程有限公司 | A kind of reusable foundation pit supporting construction |
| CN209227547U (en) * | 2018-11-02 | 2019-08-09 | 浙江协和建设有限公司 | A kind of deep foundation pit support structure |
| CN210104757U (en) * | 2019-03-19 | 2020-02-21 | 广东建联建筑设计有限公司 | Double row pile internal stay supporting construction |
| CN211312531U (en) * | 2019-08-13 | 2020-08-21 | 洛阳城市建设勘察设计院有限公司郑州工程分公司 | Strenghthened type deep basal pit supporting construction |
| CN212926091U (en) * | 2020-07-17 | 2021-04-09 | 湖北中南岩土工程有限公司 | Foundation pit supporting structure with temporary protection and easy disassembly |
| CN114351724A (en) * | 2022-01-24 | 2022-04-15 | 山西二建集团有限公司 | Protective device for foundation pit excavation |
-
2022
- 2022-01-27 CN CN202210100858.XA patent/CN114541410A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206706783U (en) * | 2017-04-18 | 2017-12-05 | 唐山市建地建筑工程有限公司 | A kind of reusable foundation pit supporting construction |
| CN209227547U (en) * | 2018-11-02 | 2019-08-09 | 浙江协和建设有限公司 | A kind of deep foundation pit support structure |
| CN210104757U (en) * | 2019-03-19 | 2020-02-21 | 广东建联建筑设计有限公司 | Double row pile internal stay supporting construction |
| CN211312531U (en) * | 2019-08-13 | 2020-08-21 | 洛阳城市建设勘察设计院有限公司郑州工程分公司 | Strenghthened type deep basal pit supporting construction |
| CN212926091U (en) * | 2020-07-17 | 2021-04-09 | 湖北中南岩土工程有限公司 | Foundation pit supporting structure with temporary protection and easy disassembly |
| CN114351724A (en) * | 2022-01-24 | 2022-04-15 | 山西二建集团有限公司 | Protective device for foundation pit excavation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351724A (en) * | 2022-01-24 | 2022-04-15 | 山西二建集团有限公司 | Protective device for foundation pit excavation |
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Application publication date: 20220527 |
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