CN110984164A - Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof - Google Patents
Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof Download PDFInfo
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- CN110984164A CN110984164A CN201911299500.9A CN201911299500A CN110984164A CN 110984164 A CN110984164 A CN 110984164A CN 201911299500 A CN201911299500 A CN 201911299500A CN 110984164 A CN110984164 A CN 110984164A
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- annular
- foundation pit
- bearing plate
- narrow space
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention provides an assembled temporary construction platform for the upper part of a foundation pit in a narrow space region and a construction method thereof, belonging to the technical field of foundation pit construction. The assembled temporary construction platform for the upper part of the foundation pit in the narrow space area comprises an annular inner support erected at the top of the foundation pit, wherein the annular inner support comprises a retaining wall arranged at the periphery of the foundation pit in a surrounding manner and an annular support arranged at the top of the foundation pit, a plurality of supporting beams are connected between the periphery of the annular support and the retaining wall, and the supporting beams are arranged in a crossed manner to form a supporting grid; the top of the lattice wall of each lattice of the support grid is provided with an annular step, a bearing plate used for covering the corresponding lattice is erected on the annular step, the shape of the bearing plate is matched with that of the corresponding lattice, and the peripheral edge of the bearing plate is abutted against the table top of the annular step.
Description
Technical Field
The invention belongs to the technical field of foundation pit construction, and particularly relates to an assembled temporary construction platform for the upper part of a foundation pit in a narrow space region and a construction method thereof.
Background
The support mode of the deep foundation pit is generally as follows: an annular inner support is erected at the upper part of the foundation pit and comprises a retaining wall arranged on the periphery of the foundation pit and an annular support arranged at the top of the foundation pit, a plurality of supporting beams are connected between the periphery of the annular support and the retaining wall, and the supporting beams are arranged in a crossed mode to form a supporting grid. For the construction of a foundation pit in a narrow space area, the construction process usually needs to be assisted by the upper space of the foundation pit, and the traditional method is to pour concrete into a plate for a support grid of an annular inner support to serve as a temporary construction platform. However, the temporary construction platform for the upper part of the foundation pit built in this way is complicated in building steps and low in construction efficiency, and the construction platform needs to be broken when being dismantled, so that the dismantling construction is time-consuming and labor-consuming, cannot be reused, and is high in construction cost. Therefore, how to provide a temporary construction platform on the upper part of a foundation pit in a narrow space area, which is convenient to build and dismantle and can be repeatedly used, is a technical problem which is urgently needed to be solved at present.
Disclosure of Invention
Aiming at the technical problems, the invention provides the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region and the construction method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides an assembled temporary construction platform for the upper part of a foundation pit in a narrow space region, which comprises an annular inner support erected at the top of the foundation pit, wherein the annular inner support comprises a retaining wall arranged at the periphery of the foundation pit and an annular support arranged at the top of the foundation pit; the top of the lattice wall of each lattice of the support grid is provided with an annular step, a bearing plate used for covering the corresponding lattice is erected on the annular step, the shape of the bearing plate is matched with that of the corresponding lattice, and the peripheral edge of the bearing plate is abutted against the table top of the annular step.
Preferably, a gap is left between the outer peripheral surface of the bearing plate and the side wall of the annular step, and the gap is filled with a sealing material.
Preferably, the table top of the annular step is provided with a limiting bulge, and the bottom surface of the bearing plate is provided with a limiting groove for the limiting bulge to insert into.
Preferably, the limiting protrusion is annular, the limiting protrusion is arranged around the grid, and the limiting groove is an annular groove.
Preferably, the limiting protrusions are cylindrical or conical, the limiting protrusions are multiple, and the limiting protrusions are uniformly distributed around the grids.
Preferably, the bearing plate is provided with a lifting lug for lifting.
The invention also provides a construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region, which comprises a building method and a dismantling method;
the construction method comprises the following steps: erecting the annular inner support at the top of the foundation pit; hanging the bearing plates one by one on annular steps of corresponding lattices of a support grid in the annular inner support until the bearing plates are paved in all the lattices of the support grid;
the dismantling method comprises the following steps: and hanging the bearing plates off the annular steps one by one until all the bearing plates are hung off.
Preferably, in the building method, after the bearing plate is hung to the annular step, a step of filling a gap between the outer peripheral surface of the bearing plate and the side wall of the annular step with a sealing material is further included; the removing method further includes the step of removing the sealing material from a gap between the outer peripheral surface of the bearing plate and the side wall of the annular step before the bearing plate is lifted off.
Preferably, in the building method, when the bearing plate is placed on the annular step, the step of clamping the limiting protrusion on the table top of the annular step into the limiting groove on the bottom surface of the bearing plate is further included.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. according to the prefabricated temporary construction platform for the upper part of the foundation pit in the narrow space area, the annular step is arranged on the lattice wall of the supporting grid lattice of the annular inner support to erect the bearing plate, so that the construction platform is formed, the bearing plate is lifted away during dismantling, dismantling can be realized, the temporary construction platform is a prefabricated platform, construction and dismantling are convenient, construction efficiency is high, cast-in-place is not needed during construction, construction equipment such as breaking and dismantling equipment is not needed during dismantling, required equipment during construction and dismantling is less, and construction cost is low;
2. according to the assembled temporary construction platform for the upper part of the foundation pit in the narrow space area, the bearing plate can be repeatedly utilized, so that the construction cost is saved, and the environment is protected;
3. according to the assembled temporary construction platform for the upper part of the foundation pit in the narrow space area, the bearing plate is erected by arranging the annular steps on the lattice walls of the supporting grid lattices of the annular inner support, so that the assembled temporary construction platform has good stability;
4. the construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region has the advantages of simple construction process, no need of cast-in-place during construction, high construction efficiency and good environmental protection effect; construction equipment such as breaking and dismantling equipment is not needed during dismantling construction, the dismantling is convenient, the dismantled bearing plate can be reused, the construction cost is saved, and the environment is protected;
5. according to the construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region, required equipment is less and construction cost is lower in the construction and dismantling processes.
Drawings
FIG. 1 is a top view of an assembled temporary construction platform at the upper part of a foundation pit in a narrow space area according to an embodiment of the invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is an assembly schematic diagram of a bearing plate in a supporting grid lattice in an assembled temporary construction platform at the upper part of a foundation pit in a narrow space region provided by the embodiment of the invention:
FIG. 4 is a schematic view of the mesa of the annular step of FIG. 3;
FIG. 5 is a bottom view of the bearing plate of FIG. 3;
in the above figures: 1. an annular inner support; 11. an enclosure wall; 12. an annular support; 13. a support grid; 131. a support beam; 132. an annular step; 1321. a limiting bulge; 2. a bearing plate; 21. lifting lugs; 22. a limiting groove; 3. a foundation pit; 4. and (3) sealing the material.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", etc. indicate orientations or positional relationships based on the positional relationships shown in fig. 2, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, the embodiment of the invention relates to an assembled temporary construction platform for an upper part of a foundation pit in a narrow space region, which comprises an annular inner support 1 erected at the top of the foundation pit 3, wherein the annular inner support 1 comprises a surrounding wall 11 surrounding the periphery of the foundation pit 3 and an annular support 12 arranged at the top of the foundation pit 3, a plurality of support beams 131 are arranged between the periphery of the annular support 12 and the surrounding wall 11, and the support beams 131 are arranged in a crossed manner to form a support grid 13; annular step 132 has all been seted up at the check wall top of every check of support grid 13, has set up the bearing plate 2 that is used for covering corresponding check on the annular step 132, the shape of bearing plate 2 with correspond the check phase-match, the periphery of bearing plate 2 along the butt on the mesa of annular step 132.
Above-mentioned interim construction platform of narrow and small regional foundation ditch upper portion assembled of space, the check wall through the support grid 13 check of support 1 in the annular sets up annular step 132 and sets up bearing plate 2, thereby form construction platform, through hanging bearing plate 2 off during demolition, can realize demolising, this interim construction platform is the assembled platform, be convenient for build and demolish, the efficiency of construction is high, need not the site pouring when building, need not with the help of construction equipment such as broken tear-open equipment during demolition, it is less with the required equipment when building and demolising, low in construction cost. Moreover, above-mentioned narrow and small spatial region foundation ditch upper portion assembled interim construction platform, but its bearing plate 2 reuse is favorable to practicing thrift construction cost, does benefit to the environmental protection moreover. In addition, the prefabricated temporary construction platform at the upper part of the foundation pit in the narrow space region has good stability by arranging the annular step 132 on the lattice wall of the lattice of the support grating 13 of the annular inner support 1 to erect the bearing plate 2.
In order to facilitate the placement of the bearing plate 2 on the annular step 132, as shown in fig. 3, a gap is left between the outer circumferential surface of the bearing plate 2 and the sidewall of the annular step 132, and the gap is filled with the sealing material 4. Because a gap is left between the outer peripheral surface of the bearing plate 2 and the side wall of the annular step 132, when the bearing plate 2 is hung, accurate positioning is not needed, and after the bearing plate 2 is hung to the annular step 132, the gap between the outer peripheral surface of the bearing plate 2 and the side wall of the annular step 132 is filled with the sealing material 4, so that the bearing plate 2 can be fixed. The sealing material 4 may be a sealant, a gasket, or the like.
Further, as shown in fig. 3 to 5, a limiting protrusion 1321 is provided on the top surface of the annular step 132, and a limiting groove 22 into which the limiting protrusion 1321 is inserted is provided on the bottom surface of the bearing plate 2. The bearing plate 2 can be quickly placed in place through the matching guide of the limiting protrusion 1321 and the limiting groove 22. In this embodiment, as shown in fig. 4 and 5, the limiting protrusion 1321 is annular, the limiting protrusion 1321 is disposed around the grid, and the limiting groove 22 is an annular groove. It should be noted that the limiting protrusion may also be cylindrical or conical; when the columnar or conical limiting bulges are adopted, the limiting bulges are arranged to be multiple, and the multiple limiting bulges are uniformly distributed around the grids.
For facilitating the hoisting, the bearing plate 2 is provided with lifting lugs 21 for hoisting, as shown in fig. 3.
The embodiment of the invention also provides a construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region, wherein the construction method comprises a building method and a dismantling method;
the construction method comprises the following steps: erecting an annular inner support 1 at the top of a foundation pit 3; the bearing plates 2 are hung one by one on the annular steps 132 of the grids corresponding to the support grids 13 in the annular inner support 1 until the bearing plates 2 are paved in all the grids of the support grids 13;
the dismantling method comprises the following steps: the bearing plates 2 are lifted off the annular step 132 one by one until all the bearing plates 2 are lifted off.
The construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space area has the advantages of simple construction process, no need of cast-in-place construction during construction, high construction efficiency and good environmental protection effect; need not with the help of construction equipment such as broken equipment of tearing open when demolising the construction, demolish the convenience, bearing plate 2 reuse after demolising is favorable to practicing thrift construction cost, does benefit to the environmental protection moreover. According to the construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region, required equipment is less and construction cost is lower in the construction and dismantling processes.
In a preferred embodiment, the building method further includes the step of filling a gap between the outer circumferential surface of the bearing plate 2 and the side wall of the annular step 132 with a sealing material 4 after the bearing plate 2 is hung on the annular step 132; in the removing method, before the bearing plate 2 is lifted off, the step of removing the sealing material 4 from the gap between the outer circumferential surface of the bearing plate 2 and the side wall of the annular step 132 is further included.
In a preferred embodiment, the building method further includes the step of clipping the limiting protrusion 1321 on the top surface of the annular step 132 into the limiting groove 22 on the bottom surface of the bearing plate 2 when the bearing plate 2 is placed on the annular step 132.
Claims (9)
1. Narrow and small spatial region foundation ditch upper portion assembled temporary construction platform, its characterized in that: the support device comprises an annular inner support erected at the top of a foundation pit, wherein the annular inner support comprises a surrounding wall surrounding the periphery of the foundation pit and an annular support arranged at the top of the foundation pit, a plurality of support beams are connected between the periphery of the annular support and the surrounding wall, and the support beams are arranged in a crossed manner to form a support grid; the top of the lattice wall of each lattice of the support grid is provided with an annular step, a bearing plate used for covering the corresponding lattice is erected on the annular step, the shape of the bearing plate is matched with that of the corresponding lattice, and the peripheral edge of the bearing plate is abutted against the table top of the annular step.
2. The assembled temporary construction platform for the upper part of the foundation pit in the narrow space region according to claim 1, characterized in that: a gap is reserved between the outer peripheral surface of the bearing plate and the side wall of the annular step, and the gap is filled with a sealing material.
3. The temporary construction platform of narrow space region foundation ditch upper portion assembled of claim 1 or 2, characterized in that: the table top of the annular step is provided with a limiting bulge, and the bottom surface of the bearing plate is provided with a limiting groove for the limiting bulge to insert into.
4. The assembled temporary construction platform for the upper part of the foundation pit in the narrow space region as claimed in claim 3, wherein: the limiting protrusions are annular, the limiting protrusions are arranged around the grids, and the limiting grooves are annular grooves.
5. The assembled temporary construction platform for the upper part of the foundation pit in the narrow space region as claimed in claim 3, wherein: the limiting protrusions are columnar or conical, the limiting protrusions are multiple, and the limiting protrusions are evenly distributed around the grids.
6. The assembled temporary construction platform for the upper part of the foundation pit in the narrow space region according to claim 1, characterized in that: the bearing plate is provided with a lifting lug for lifting.
7. The construction method of the prefabricated temporary construction platform at the upper part of the foundation pit in the narrow space region as claimed in any one of claims 1 to 6, which comprises a building method and a dismantling method, and is characterized in that:
the construction method comprises the following steps: erecting the annular inner support at the top of the foundation pit; hanging the bearing plates one by one on annular steps of corresponding lattices of a support grid in the annular inner support until the bearing plates are paved in all the lattices of the support grid;
the dismantling method comprises the following steps: and hanging the bearing plates off the annular steps one by one until all the bearing plates are hung off.
8. The construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region according to claim 7, characterized in that: in the building method, after the bearing plate is hung to the annular step, a step of filling a gap between the peripheral surface of the bearing plate and the side wall of the annular step with a sealing material is also included; the removing method further includes the step of removing the sealing material from a gap between the outer peripheral surface of the bearing plate and the side wall of the annular step before the bearing plate is lifted off.
9. The construction method of the assembled temporary construction platform at the upper part of the foundation pit in the narrow space region according to claim 7, characterized in that: in the building method, when the bearing plate is placed on the annular step, the step of clamping the limiting bulge on the table top of the annular step into the limiting groove on the bottom surface of the bearing plate is further included.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299500.9A CN110984164A (en) | 2019-12-17 | 2019-12-17 | Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911299500.9A CN110984164A (en) | 2019-12-17 | 2019-12-17 | Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof |
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| Publication Number | Publication Date |
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| CN110984164A true CN110984164A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911299500.9A Pending CN110984164A (en) | 2019-12-17 | 2019-12-17 | Upper assembled temporary construction platform of foundation pit in narrow space region and construction method thereof |
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| CN (1) | CN110984164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502212A (en) * | 2020-12-08 | 2021-03-16 | 中交二航局第四工程有限公司 | Rapid assembly platform suitable for taking soil in foundation pit and complete construction process |
| CN115110577A (en) * | 2022-08-01 | 2022-09-27 | 上海建工一建集团有限公司 | Construction method of large basement assembled from periphery to center |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227204A (en) * | 2001-01-29 | 2002-08-14 | Maeda Corp | Earth retaining method of excavation section |
| CN205653797U (en) * | 2016-05-27 | 2016-10-19 | 中国建筑第八工程局有限公司 | Super high -rise building's unearthed landing stage of totally enclosed shoring of trench |
| CN205917703U (en) * | 2016-07-22 | 2017-02-01 | 江苏天廷建设工程有限公司 | A supporting construction that is arranged in architectural complex foundation ditch tower to be under construction |
| CN206887680U (en) * | 2017-06-27 | 2018-01-16 | 浙江省工程勘察院 | A kind of removable type cover plate for foundation pit construction |
| CN109440784A (en) * | 2018-12-25 | 2019-03-08 | 上海建工七建集团有限公司 | Regularization prefabricated assembling type reinforced concrete supports cover board and construction method |
-
2019
- 2019-12-17 CN CN201911299500.9A patent/CN110984164A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227204A (en) * | 2001-01-29 | 2002-08-14 | Maeda Corp | Earth retaining method of excavation section |
| CN205653797U (en) * | 2016-05-27 | 2016-10-19 | 中国建筑第八工程局有限公司 | Super high -rise building's unearthed landing stage of totally enclosed shoring of trench |
| CN205917703U (en) * | 2016-07-22 | 2017-02-01 | 江苏天廷建设工程有限公司 | A supporting construction that is arranged in architectural complex foundation ditch tower to be under construction |
| CN206887680U (en) * | 2017-06-27 | 2018-01-16 | 浙江省工程勘察院 | A kind of removable type cover plate for foundation pit construction |
| CN109440784A (en) * | 2018-12-25 | 2019-03-08 | 上海建工七建集团有限公司 | Regularization prefabricated assembling type reinforced concrete supports cover board and construction method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502212A (en) * | 2020-12-08 | 2021-03-16 | 中交二航局第四工程有限公司 | Rapid assembly platform suitable for taking soil in foundation pit and complete construction process |
| CN112502212B (en) * | 2020-12-08 | 2022-06-24 | 中交二航局第四工程有限公司 | Rapid assembly platform suitable for taking soil in foundation pit and complete construction process |
| CN115110577A (en) * | 2022-08-01 | 2022-09-27 | 上海建工一建集团有限公司 | Construction method of large basement assembled from periphery to center |
| CN115110577B (en) * | 2022-08-01 | 2023-11-14 | 上海建工一建集团有限公司 | Construction method for large basement assembled from four sides to center |
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