CN212835416U - Assembled enclosure structure for foundation pit - Google Patents
Assembled enclosure structure for foundation pit Download PDFInfo
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- CN212835416U CN212835416U CN202021247744.0U CN202021247744U CN212835416U CN 212835416 U CN212835416 U CN 212835416U CN 202021247744 U CN202021247744 U CN 202021247744U CN 212835416 U CN212835416 U CN 212835416U
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Abstract
The utility model discloses an assembled enclosure structure for foundation ditch relates to foundation ditch with enclosing technical field, and it is including the fixed support bracket that sets up on the foundation ditch lateral wall, support bracket is provided with a plurality of groups around foundation ditch week side interval on the foundation ditch lateral wall, set up the steel on the support bracket and enclose the purlin section, and the relative both sides lateral wall department of foundation ditch the steel of steel enclosing purlin section or the adjacent both sides lateral wall department of foundation ditch encloses and is provided with the steel shotcrete between the purlin section, the steel shotcrete is supported, arbitrary the steel encloses the purlin section and all reserves between the foundation ditch lateral wall to have first clearance, and arbitrary two are adjacent the steel encloses and encloses the purlin section and connect and reserve between having the second clearance, just it has the concrete to fill between second clearance and the second clearance. The utility model has the advantages of the staff of being convenient for promotes the efficiency to foundation pit retaining structure uninstallation operation to foundation pit retaining structure's the operation of demolising to help reducing staff's intensity of labour, and realize the reciprocal use to foundation pit retaining structure.
Description
Technical Field
The utility model belongs to the technical field of the enclosure technique for the foundation ditch and specifically relates to a foundation ditch is with assembled enclosure structure is related to.
Background
The foundation pit is a space below the ground excavated for constructing a foundation and a basement of a building (including a structure), belongs to temporary engineering, and is used for providing a space so that the construction operation of the foundation can be performed according to a position specified by design.
Chinese patent with current publication number CN201649104U discloses a steel purlin suit and a steel purlin for subway foundation pit support, including: purlin is enclosed to steel and support bracket (bracket) that purlin is enclosed to steel, the steel encloses the purlin and includes I-steel, two at least steel pinch plates of two at least equal specifications, reinforcing plate, two at least outer strengthening ribs and a pair of couple in two at least, the steel pinch plate with the shank welding of I-steel, interior reinforcing plate with the inboard welding of the stand of I-steel, outer strengthening rib with the outside welding of the stand of I-steel, the couple with outer strengthening rib welding.
By adopting the scheme, during installation, holes are drilled in concrete grouting piles around the subway foundation pit, the support brackets (brackets) are fixed by expansion bolts, the steel purlin surrounding sections are sequentially hung on the support brackets (brackets) for connection to form a circle of complete continuous beam, and finally the steel supports are installed on the corresponding continuous beam by using a crane for supporting. The steel purlin supported by the steel supports is used for supporting a foundation pit foundation wall (called underground continuous wall in the foundation pit side wall industry, called foundation wall for short) and preventing the foundation pit foundation wall from collapsing into the foundation pit. However, for some deeper foundation pits, the ground wall is easy to deform and extrude the continuous beam into the foundation pit due to the influences of depth, soil quality, environment and the like; when the foundation pit construction is completed, workers need to unload the steel supports firstly and unload the steel enclosing purlins section by section, the unloading efficiency of the unloading mode of the foundation pit enclosing purlins is low, the labor intensity of the workers is increased, and parts to be improved exist.
In addition, for an ultra-deep foundation pit inner support system in a soft soil area, cast-in-place concrete supports and concrete purlins with high rigidity are mainly selected, and the method is safe and reliable. And the common steel support is generally only used in a shallow foundation pit due to small bearing capacity and poor rigidity. The concrete support of the ultra-deep foundation pit mainly has the following defects:
1. the construction of the structure can be only chiseled off, and the structure cannot be recycled, and is not in accordance with the current green and environment-friendly construction concept;
2. the cast-in-place concrete support needs to pour a cushion layer, bind reinforcing steel bars, support a formwork and maintain, has multiple construction procedures and relatively longer period, and is particularly not beneficial to construction period rush when the temperature is lower;
3. some buildings are more and higher in the number of layers, certain supports can be dismantled after the upper-layer structure construction is completed, and the difficulty in the later dismantling construction is high.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims at providing an assembled enclosure for deep basal pit, this enclosure adopt the steel pipe concrete to support and steel enclosing purlin to through filling the concrete to first clearance and second clearance, thereby the staff of being convenient for promotes the efficiency to foundation pit enclosure uninstallation operation, and helps reducing staff's intensity of labour, and realizes the reciprocal use to foundation pit enclosure.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides an assembled enclosure structure for foundation ditch, is including the fixed support bracket that sets up on the foundation ditch lateral wall, support bracket is provided with a plurality of groups around foundation ditch week side interval on the foundation ditch lateral wall, set up the steel on the support bracket and enclose the purlin section, the relative both sides lateral wall department of foundation ditch steel enclose the purlin section or the adjacent both sides lateral wall department of foundation ditch steel enclose and be provided with the steel shotcrete between the purlin section, the steel shotcrete is supported for the steel pipe concrete, arbitrary steel encloses and reserves first clearance between the purlin section all and the foundation ditch lateral wall, arbitrary two adjacent steel encloses and reserves second clearance between the purlin section connects, just it has the concrete to fill between second clearance and the second clearance.
By adopting the technical scheme, when the foundation pit enclosure structure is dismantled, workers can damage the concrete, so that the dismantling operation of the foundation pit enclosure structure by the workers is facilitated, the efficiency of the unloading operation of the foundation pit enclosure structure is improved, and the labor intensity of the workers is reduced; and the steel support is set as the steel pipe concrete support, so that the stress performance of the foundation pit support structure is promoted, and the reciprocating use of the foundation pit support structure is realized.
The utility model discloses further set up to: and a static blasting pipeline is embedded in the concrete filled in the second gap.
By adopting the technical scheme, in actual work, the worker can destroy the concrete in the second gap by means of the static blasting pipeline, so that the worker can further conveniently demolish the foundation pit support structure.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the first gap and the second gap are filled with concrete, so that the foundation pit support structure can be conveniently dismantled by workers, the efficiency of the unloading operation of the foundation pit support structure is improved, the labor intensity of the workers is reduced, and the foundation pit support structure can be used repeatedly.
Drawings
Fig. 1 is a schematic sectional view of an overall structure of an assembly type enclosure structure for a foundation pit according to the present embodiment;
FIG. 2 is an enlarged view of a portion A of FIG. 1, mainly illustrating a first gap structure;
fig. 3 is a partial top view of the fabricated protective structure for a foundation pit according to the present embodiment;
FIG. 4 is an enlarged view of a portion B of FIG. 2, which mainly shows the structure of the second gap and the static blasting tube;
reference numerals: 1. a support bracket; 2. a steel purlin segment; 21. supporting steel; 3. a first gap; 4. a second gap; 5. static blasting of the pipeline.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Example (b):
referring to fig. 1 and 3, an assembled enclosure structure for foundation pit, including fixed support bracket 1 that sets up on the foundation pit lateral wall, support bracket 1 can be the tripod, the level setting is personally submitted to the upside of support bracket 1, support bracket 1 is provided with a plurality of groups around foundation pit week side interval on the foundation pit lateral wall, support bracket 1 is last to have set up steel purlin section 2, steel purlin section 2 of the relative both sides of foundation pit and the adjacent both sides of foundation pit both sides wall intersection department enclose between purlin section 2 all be provided with steel shotcrete 21, steel shotcrete 21 is the steel pipe concrete support. A first gap 3 (see fig. 2) is reserved between any one steel purlin surrounding section 2 and the side wall of the foundation pit, a second gap 4 (see fig. 4) is reserved between joints of any two adjacent steel purlin surrounding sections 2, concrete is filled between the second gaps 4 and the second gaps 4, and static blasting pipelines 5 are pre-buried in the concrete filled in the second gaps 4.
When the foundation pit support structure is dismantled, a worker can perform static blasting operation on the concrete filled in the second gap 4 through the static blasting pipeline 5 by means of static blasting equipment, and destroy the connection between the concrete and the steel purlin section 2 in the first gap 3, and then the worker can unload the foundation pit support structure easily.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The utility model provides an assembled enclosure structure for foundation ditch, is including fixed braced support (1) that sets up on the foundation ditch lateral wall, braced support (1) is provided with a plurality of groups around foundation ditch week side interval on the foundation ditch lateral wall, set up steel on braced support (1) and enclose purlin section (2), the relative both sides lateral wall department of foundation ditch steel enclose between purlin section (2) or the adjacent both sides lateral wall department of foundation ditch steel enclose purlin section (2) and be provided with steel shotcrete (21), its characterized in that, steel shotcrete (21) are the steel pipe concrete support, arbitrary steel enclose between purlin section (2) all and the foundation ditch lateral wall reserve and have first clearance (3), arbitrary two are adjacent steel enclose between purlin section (2) connect and reserve and have second clearance (4), just it has concrete to fill between second clearance (4) and second clearance (4).
2. The assembled enclosure structure for the foundation pit according to claim 1, wherein the static blasting pipeline (5) is embedded in the concrete filled in the second gap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247744.0U CN212835416U (en) | 2020-06-30 | 2020-06-30 | Assembled enclosure structure for foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247744.0U CN212835416U (en) | 2020-06-30 | 2020-06-30 | Assembled enclosure structure for foundation pit |
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| CN212835416U true CN212835416U (en) | 2021-03-30 |
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| CN202021247744.0U Active CN212835416U (en) | 2020-06-30 | 2020-06-30 | Assembled enclosure structure for foundation pit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086565A (en) * | 2021-08-30 | 2022-02-25 | 北京工业大学 | Assembled multi-limb combined concrete-filled steel tube inner support system applied to deep foundation pit engineering |
| CN114263188A (en) * | 2021-12-30 | 2022-04-01 | 上海市机械施工集团有限公司 | Double-support platform structure for foundation pit engineering and construction method |
| CN114790749A (en) * | 2022-06-27 | 2022-07-26 | 中国建筑第六工程局有限公司 | Steel purlin surrounding device capable of releasing temperature stress and construction method thereof |
-
2020
- 2020-06-30 CN CN202021247744.0U patent/CN212835416U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086565A (en) * | 2021-08-30 | 2022-02-25 | 北京工业大学 | Assembled multi-limb combined concrete-filled steel tube inner support system applied to deep foundation pit engineering |
| CN114263188A (en) * | 2021-12-30 | 2022-04-01 | 上海市机械施工集团有限公司 | Double-support platform structure for foundation pit engineering and construction method |
| CN114790749A (en) * | 2022-06-27 | 2022-07-26 | 中国建筑第六工程局有限公司 | Steel purlin surrounding device capable of releasing temperature stress and construction method thereof |
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