CN204282370U - A kind of rigidity is unearthed platform internal support of foundation pit structure - Google Patents
A kind of rigidity is unearthed platform internal support of foundation pit structure Download PDFInfo
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- CN204282370U CN204282370U CN201420724282.5U CN201420724282U CN204282370U CN 204282370 U CN204282370 U CN 204282370U CN 201420724282 U CN201420724282 U CN 201420724282U CN 204282370 U CN204282370 U CN 204282370U
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- foundation pit
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Abstract
The utility model discloses a kind of rigidity to be unearthed platform internal support of foundation pit structure, this structure comprises the gear soil sealing campshed being arranged at margin of foundation pit, be connected to the side bar on the native sealing campshed of gear, be arranged on the rigid frame structure in foundation ditch, the interim campshed be connected with described rigid frame structure inside edge, cover the landing slab in described rigid frame structure, described rigid frame structure is by the long beam intersected and short beam, the column being arranged on described long beam and short beam crossed node place is formed, the node that long beam and short beam intersect and its lower one deck in same short beam perpendicular to corner node between be connected with brace, the short beam of next-door neighbour's margin of foundation pit is also connected with side bar, column adopts latticed steel structure or steel pipe, is formed by connecting with the upper prop being arranged on more than hole end absolute altitude by the lower prop being arranged on below hole end absolute altitude.The utility model, except completing unearthed function, can also double as inner support, thus reduces construction costs, investment reduction.
Description
Technical field
The utility model belongs to civil construction project field, relates to a kind of foundation pit supporting project, and particularly a kind of rigidity is unearthed platform inner supporting structure.
Background technology
At present in foundation pit supporting construction, generally to set up separately unearthed platform, sometimes the way that the platform that is unearthed combines with inner support is also adopted, but at this moment because the investment of inner support in Large Foundation Pit is larger, therefore the input of this scheme is also larger, the utility model proposes a kind of rigidity to be unearthed platform internal support of foundation pit structure, it not only eliminates traditional inner support and platform, thus reduce investment, and because foundation ditch middle part is without inner support, and make shoveling become convenient and simple, reduce cost further, the reduction of erection time.
Utility model content
technical problem:the purpose of this utility model aims to provide a kind of except completing unearthed function, the rigidity that can also double as inner support is unearthed platform internal support of foundation pit structure, it can not only reduce construction costs, investment reduction, and unite two into one due to unearthed platform and internal support of foundation pit structure, thus decrease engineering quantity, shorten the duration.
technical scheme:rigidity of the present utility model is unearthed platform internal support of foundation pit structure, comprise the gear soil sealing campshed being arranged at margin of foundation pit, be connected to the side bar on the native sealing campshed of gear, be arranged on the rigid frame structure in foundation ditch, the interim campshed be connected with described rigid frame structure inside edge, cover the landing slab in described rigid frame structure, described rigid frame structure is by the long beam intersected and short beam, the column being arranged on described long beam and short beam crossed node place is formed, the node that long beam and short beam intersect and its lower one deck in same short beam perpendicular to corner node between be connected with brace, the short beam of next-door neighbour's margin of foundation pit is also connected with side bar, column adopts latticed steel structure or steel pipe, is formed by connecting with the upper prop being arranged on more than hole end absolute altitude by the lower prop being arranged on below hole end absolute altitude.
In the preferred version of the utility model rigid frame posture internal support of foundation pit structure, landing slab adopts reinforced concrete structure.
In the preferred version of the utility model rigid frame posture internal support of foundation pit structure, arrange the long beam of multilayer and short beam in rigid frame structure, every layer long beam is all connected with column with the node of short beam.
In the preferred version of the utility model rigid frame posture internal support of foundation pit structure, arrange the long beam of individual layer and short beam in rigid frame structure, the lower end of described brace is connected with the column at foundation ditch bottom surface place and side bar.
In the preferred version of the utility model rigid frame posture internal support of foundation pit structure, the position of long beam, short beam and column in rigid frame structure, absolute altitude, sectional dimension and mechanical characteristic are determined according to the designing requirement of basement and parameter.
In the preferred version of the utility model rigid frame posture internal support of foundation pit structure, at the bottom of foundation ditch, absolute altitude place is provided with base plate, the paxilla being positioned at below absolute altitude at the bottom of foundation ditch is provided with below described base plate, base plate and column, brace and gear soil sealing campshed is connected also together builds, and described paxilla to be inserted in the soil layer of below base plate and is mounted in base plate.
In the utility model, long beam, short beam, the brace number of plies is vertically determined by calculating, and long beam, short beam, brace are all fixedly connected with crossing column.
Upper prop adopts latticed steel structure or steel pipe, and lower prop is arranged on below hole end absolute altitude, and upper prop is arranged on more than hole end absolute altitude.
When be unearthed each layer absolute altitude of platform structure of rigidity of the present utility model is consistent with basement each layer absolute altitude, and column and basement post are apart from identical, when short beam, long beam are consistent with the design parameters of each respective members of mechanical characteristic and basement structure with the sectional dimension of column, the rigidity platform structure that is unearthed just can double as basement structure, thus eliminate corresponding column, long beam and short beam, this basement structure and rigidity are unearthed uniting two into one of platform structure, save investment greatly, shorten the duration.
Not do not limit the columns of column in the utility model, comprise in other words one across and multispan rigidity to be unearthed the situation of platform, the Pin number of platform specific is determined by calculating.
To be unearthed the rigidity of platform structure to improve rigidity further, reduce its distortion, soil excavation on earth after, some paxillas can be squeezed in the soil below basement bottom board according to design, and these paxillas are cast in basement bottom board, together with namely basement bottom board is cast in column, brace, gear soil sealing campshed and paxilla, define an entirety, the quantity of paxilla, length, arrangement and position are determined by designing and calculating, do not limit by schematic diagram.
Build above-mentioned rigidity to be unearthed the construction method of platform internal support of foundation pit structure, concrete steps are:
1) the native sealing campshed of gear, column and interim campshed are constructed in construction;
2) earth excavation is to column, interim campshed with to keep off the stake top mark of native sealing campshed high;
3) the pouring construction long beam of first floor, short beam, side bar and landing slab topmost;
4) cut the earth downwards to keeping off between native sealing campshed, until the end absolute altitude of the long beam of the second layer and short beam at interim campshed.
5) the long beam of the construction second layer, short beam, side bar, and the brace between first floor short beam and second layer short beam;
6) by above-mentioned steps 2)-5) continue construction, until earth excavation is to hole end absolute altitude, construct whole rigid frame structure;
7) all the other earthwork in excavation pit, and reclaim interim campshed, build basement bottom board;
8) successively to construct from bottom to top basement, and remove rigid frame structure.
In the preferred version of above-mentioned construction method, above-mentioned steps 8) in remove rigid frame structure time, if utilize rigidity to be unearthed platform as basement structure ingredient, then retain short beam, long beam and column, only remove brace, otherwise short beam, Chang Liang, column and brace are all removed.
In the preferred version of above-mentioned construction method, in step 6) after absolute altitude at the bottom of earth excavation to foundation ditch, also construct bottom foundation ditch paxilla and bottom one deck brace, and build base plate.
beneficial effect:compared with traditional unearthed platform, the utility model has following advantage:
The utility model is by making rigidity unearthed platform, thus the extension of function of unearthed platform to inner support, a structure is made to be provided with two kinds of functions of inner support and unearthed platform, eliminate traditional inner support, this not only reduces the workload of traditional inner support, saved corresponding investment, and due to internal support of foundation pit few, cut the earth convenient and simple and the expense of cutting the earth is reduced, the time shorten of shoveling.
Accompanying drawing explanation
Fig. 1 is that rigidity is unearthed platform internal support of foundation pit structural plan schematic diagram.
Fig. 2 is that rigidity is unearthed soil excavation generalized section on earth under platform internal support of foundation pit structure platform.
Fig. 3 is that the rigidity platform that is unearthed completes, all the other soil excavations generalized section on earth in foundation ditch.
Have in figure: column 1, long beam 2, landing slab 3, brace 4, short beam 5, interim campshed 6, keep off native sealing campshed 7, side bar 8, base plate 9, paxilla 10, lower prop 11, upper prop 12.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, technical scheme of the present utility model is described in further details.
Rigidity of the present utility model is unearthed platform internal support of foundation pit structure, comprise the gear soil sealing campshed 7 being arranged at margin of foundation pit, be connected to the side bar 8 on the native sealing campshed 7 of gear, be arranged on the rigid frame structure in foundation ditch, the interim campshed 6 be connected with described rigid frame structure inside edge, cover the landing slab 3 in described rigid frame structure, described rigid frame structure is by the long beam 2 intersected and short beam 5, the column 1 being arranged on described long beam 2 and short beam 5 crossed node place is formed, the node that long beam 2 and short beam 5 intersect and its lower one deck in same short beam perpendicular to corner node between be connected with brace 4, the short beam 5 of next-door neighbour's margin of foundation pit is also connected with side bar 8, column 1 adopts latticed steel structure or steel pipe, is formed by connecting with the upper prop 12 being arranged on more than hole end absolute altitude by the lower prop 11 being arranged on below hole end absolute altitude.
In the preferred embodiment of the utility model rigid frame posture internal support of foundation pit structure, landing slab 3 adopts reinforced concrete structure, arranges the long beam 2 of multilayer and short beam 5 in rigid frame structure, and every layer long beam 2 is all connected with column 1 with the node of short beam 5.
In the another kind of preferred embodiment of the utility model rigid frame posture internal support of foundation pit structure, arrange the long beam 2 of individual layer and short beam 5 in rigid frame structure, the lower end of described brace 4 is connected with foundation ditch bottom surface column 1 and side bar 8.
In the preferred embodiment of the utility model rigid frame posture internal support of foundation pit structure, the position of the long beam 2 in rigid frame structure, short beam 5 and column 1, absolute altitude, sectional dimension and mechanical characteristic are determined according to the designing requirement of basement and parameter.
In the preferred embodiment of the utility model rigid frame posture internal support of foundation pit structure, at the bottom of foundation ditch, absolute altitude place is provided with base plate 9, described base plate 9 is provided with the paxilla 10 being positioned at below absolute altitude at the bottom of foundation ditch below, base plate 9 and column 1, brace 4 and keep off native sealing campshed 7 and be connected and together build, described paxilla 10 to be inserted in the soil layer of below base plate and is mounted in base plate 9.
In the utility model, long beam 2, short beam 5, brace 4 number of plies are vertically determined by calculating, and long beam 2, short beam 5, brace 4 are all fixedly connected with crossing column 1.
Upper prop 12 adopts latticed steel structure or steel pipe, and lower prop 11 is arranged on below hole end absolute altitude, and upper prop 12 is arranged on more than hole end absolute altitude.
When be unearthed each layer absolute altitude of platform structure of rigidity of the present utility model is consistent with basement each layer absolute altitude, and column 1 and basement post are apart from identical, when short beam 5, long beam 2 are consistent with the design parameters of each respective members of basement structure with mechanical characteristic (referring to the anti-bending bearing capacity in cross section and shear-carrying capacity) with the sectional dimension of column 1, the rigidity platform structure that is unearthed just can double as basement structure, thus eliminate corresponding column, long beam and short beam, this basement structure and rigidity are unearthed uniting two into one of platform structure, save investment greatly, shorten the duration.
Not do not limit the columns of column in the utility model, comprise in other words one across and multispan rigidity to be unearthed the situation of platform, the Pin number of platform specific is determined by calculating.
To be unearthed the rigidity of platform structure to improve rigidity further, reduce its distortion, soil excavation on earth after, some paxillas 10 can be squeezed in the soil of basement bottom board less than 9 according to design, and these paxillas are cast in basement bottom board 9, namely basement bottom board 9 and column 1, brace 4, keep off together with native sealing campshed 7 and paxilla 10 be cast in, define an entirety, the quantity of paxilla 10, length, arrangement and position are determined by designing and calculating, do not limit by schematic diagram.
Rigidity of the present utility model is unearthed the construction method of platform internal support of foundation pit structure, and its concrete steps are:
1) the native sealing campshed 7 of gear, column 1 and interim campshed 6 are constructed in construction;
2) earth excavation is to column 1, interim campshed 6 with to keep off the stake top mark of native sealing campshed 7 high;
3) the pouring construction long beam 2 of first floor, short beam 5, side bar 8 and landing slab 3 topmost;
4) cut the earth downwards, until the end absolute altitude of the long beam 2 of the second layer and short beam 5 between the native sealing campshed 7 of gear at interim campshed 6.
5) the long beam 2 of the construction second layer, short beam 5, side bar 8, and the brace 4 between first floor short beam and second layer short beam;
6) by above-mentioned steps 2)-5) continue construction, until earth excavation to hole the end absolute altitude, construct paxilla 10, constructed whole rigid frame structure;
7) all the other earthwork in excavation pit, and reclaim interim campshed 6, build basement bottom board;
8) successively to construct from bottom to top basement, and remove rigid frame structure.
Claims (6)
1. a rigidity is unearthed platform internal support of foundation pit structure, it is characterized in that, this structure comprises gear soil sealing campshed (7) being arranged at margin of foundation pit, be connected to the side bar (8) on the native sealing campshed (7) of gear, be arranged on the rigid frame structure in foundation ditch, the interim campshed (6) be connected with described rigid frame structure inside edge, cover the landing slab (3) in described rigid frame structure, described rigid frame structure is by the long beam (2) intersected and short beam (5), the column (1) being arranged on described long beam (2) and short beam (5) crossed node place is formed, the node that long beam (2) and short beam (5) intersect and its lower one deck in same short beam perpendicular to corner node between be connected with brace (4), the short beam (5) of next-door neighbour's margin of foundation pit is also connected with side bar (8),
Described column (1) adopts latticed steel structure or steel pipe, by being arranged on the lower prop (11) of below hole end absolute altitude and being arranged on the upper prop (12) of cheating more than end absolute altitude and being formed by connecting.
2. rigidity according to claim 1 is unearthed platform internal support of foundation pit structure, it is characterized in that, described landing slab (3) adopts reinforced concrete structure.
3. rigidity according to claim 1 is unearthed platform internal support of foundation pit structure, and it is characterized in that, arrange the long beam of multilayer (2) and short beam (5) in described rigid frame structure, every layer long beam (2) is all connected with column (1) with the node of short beam (5).
4. rigidity according to claim 1 is unearthed platform internal support of foundation pit structure, and it is characterized in that, arrange the long beam of individual layer (2) and short beam (5) in described rigid frame structure, the lower end of described brace (4) is connected with the column at foundation ditch bottom surface place and side bar.
5. the rigidity according to claim 1,2,3 or 4 is unearthed platform internal support of foundation pit structure, it is characterized in that, the position of the long beam (2) in described rigid frame structure, short beam (5) and column (1), absolute altitude, sectional dimension and mechanical characteristic are determined according to the designing requirement of basement and parameter.
6. the rigidity according to claim 1,2,3 or 4 is unearthed platform internal support of foundation pit structure, it is characterized in that, absolute altitude place at the bottom of described foundation ditch is provided with base plate (9), described base plate (9) is provided with the paxilla (10) being positioned at below absolute altitude at the bottom of foundation ditch below, base plate (9) and column (1), brace (4) and keep off native sealing campshed (6) and be connected and together build, described paxilla (10) is inserted in base plate (9) soil layer below, and is mounted in base plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724282.5U CN204282370U (en) | 2014-11-26 | 2014-11-26 | A kind of rigidity is unearthed platform internal support of foundation pit structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724282.5U CN204282370U (en) | 2014-11-26 | 2014-11-26 | A kind of rigidity is unearthed platform internal support of foundation pit structure |
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| CN204282370U true CN204282370U (en) | 2015-04-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372799A (en) * | 2014-11-26 | 2015-02-25 | 江苏鸿基科技有限公司 | Rigid unearthing platform foundation pit inner support structure and construction method |
| CN105155549A (en) * | 2015-06-18 | 2015-12-16 | 中建三局第二建设工程有限责任公司 | Partition support system for large-area deep foundation pit under forward and backward working condition, and construction method thereof |
| CN105401583A (en) * | 2015-12-25 | 2016-03-16 | 中铁十四局集团有限公司 | Steel structure soil delivery platform for wide and deep step foundation pit |
| CN109113094A (en) * | 2018-08-24 | 2019-01-01 | 广州市人防建筑设计研究院有限公司 | Household air-raid shelter and its construction method |
-
2014
- 2014-11-26 CN CN201420724282.5U patent/CN204282370U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372799A (en) * | 2014-11-26 | 2015-02-25 | 江苏鸿基科技有限公司 | Rigid unearthing platform foundation pit inner support structure and construction method |
| CN105155549A (en) * | 2015-06-18 | 2015-12-16 | 中建三局第二建设工程有限责任公司 | Partition support system for large-area deep foundation pit under forward and backward working condition, and construction method thereof |
| CN105401583A (en) * | 2015-12-25 | 2016-03-16 | 中铁十四局集团有限公司 | Steel structure soil delivery platform for wide and deep step foundation pit |
| CN109113094A (en) * | 2018-08-24 | 2019-01-01 | 广州市人防建筑设计研究院有限公司 | Household air-raid shelter and its construction method |
| CN109113094B (en) * | 2018-08-24 | 2020-07-17 | 广州市人防建筑设计研究院有限公司 | Household civil air defense basement and construction method thereof |
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Address after: 210000 A, building 9, block 11, Spark Road, Jiangsu, Nanjing, China Patentee after: JIANGSU HONGJI ENERGY SAVING NEW TECHNOLOGY CO., LTD. Address before: 210038 Jiangsu Province, Nanjing City Lake Garden 16 building 401 Patentee before: Jiangsu Hongji Technology Co., Ltd. |