CN217267506U - Novel steel crown beam adopting foundation pit supporting mode - Google Patents
Novel steel crown beam adopting foundation pit supporting mode Download PDFInfo
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- CN217267506U CN217267506U CN202220161518.3U CN202220161518U CN217267506U CN 217267506 U CN217267506 U CN 217267506U CN 202220161518 U CN202220161518 U CN 202220161518U CN 217267506 U CN217267506 U CN 217267506U
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- crown beam
- steel crown
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- foundation pit
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Abstract
The utility model discloses a novel excavation supporting mode steel crown beam relates to the building engineering field, including a M excavation supporting unit, excavation supporting unit includes F stand and sets up at the intraformational high pressure jet grouting pile of soil, the stand sets up in the high pressure jet grouting pile, its top protrusion spouts the pile with high pressure jet grouting pile soon, and the steel crown beam is all installed to the left and right sides of stand, the utility model discloses an insert the stand in traditional high pressure jet grouting pile soon, through using steel crown beam to connect a plurality of stands common atress, not only guaranteed the safety of excavation, still have advantages such as convenient to use, effect are reliable, when guaranteeing construction quality, still improved the efficiency of construction, make things convenient for workman's work.
Description
Technical Field
The utility model belongs to the building engineering field, concretely relates to novel excavation supporting mode steel crown beam.
Background
With the acceleration of urbanization construction, the utilization of newly built urban construction sites is increasingly limited under the influence of factors such as population, traffic, natural environment and social environment. Therefore, the utilization rate of the underground space of the building is higher and higher, the deep foundation pit is more and more common, and the supporting technology of the deep foundation pit is more and more various.
The excavation of the foundation pit is mainly influenced by the surrounding environment, the on-site hydrology and the geological conditions, the excavation safety of the foundation pit cannot be guaranteed only by one or a simple combination of a plurality of supporting technologies for supporting certain special deep foundation pits, and particularly the supporting close to the deep foundation pit of the existing building is difficult to construct in a foundation pit supporting mode.
The construction of the conventional reinforced concrete columns and reinforced concrete crown beams has some problems, for example: the construction is complicated, the construction efficiency is low, and the problem of recycling can not be dismantled.
Therefore, a novel steel crown beam adopting a foundation pit supporting mode is provided.
SUMMERY OF THE UTILITY MODEL
To the construction of traditional reinforced concrete stand and reinforced concrete crown beam, the construction is complicated, the efficiency of construction is low, can't demolish recycle's problem, the utility model provides a novel excavation supporting mode steel crown beam.
The utility model provides a scheme that its technical problem adopted is: the utility model provides a novel excavation supporting mode steel crown beam, includes M excavation supporting unit, the excavation supporting unit includes F stand and sets up the high pressure jet grouting pile in the soil horizon, the stand sets up in the high pressure jet grouting pile, its top protrusion and high pressure jet grouting pile, and the steel crown beam is all installed to the left and right sides of stand.
As an optimal technical scheme of the utility model, the steel is covered the roof beam and is covered the roof beam for H shaped steel, has seted up a N preformed hole on the crossbeam that the steel was covered the roof beam.
As an optimized technical scheme of the utility model, the steel crown roof beam passes through fastener detachable and installs on the stand.
As an optimal technical scheme of the utility model, the stand includes connecting plate and two curb plates, and the connecting plate is installed and is constituteed the H type between two curb plates.
As a preferred technical scheme of the utility model, the steel crown beam has been close to one side of stand and has been seted up F group's mounting hole, and every group mounting hole has D, two D a fixed orifices has all been seted up in the curb plate, the fastener is high strength bolt, and high strength bolt passes corresponding fixed orifices and mounting hole and is in the same place steel crown beam and curb plate fixed mounting.
As an optimized technical scheme of the utility model, the handling hole has been seted up to the upper segment of connecting plate.
As an optimized technical scheme of the utility model, the bottom of curb plate is V type end.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an insert the stand in traditional high pressure jet grouting pile, couple together common atress with a plurality of stands through using the steel crown beam, not only guaranteed the safety of foundation ditch excavation, still have advantages such as convenient to use, effect are reliable, when guaranteeing construction quality, still improved the efficiency of construction, make things convenient for workman's work.
2. The utility model discloses an use the high-strength bolt to be connected stand and steel crown beam together fixedly, guaranteed the stability of steel crown beam in the work progress on the one hand, on the other hand can tear the steel crown beam down after the construction, carries out recycle to the steel crown beam to construction cost has been saved.
Drawings
FIG. 1 is a schematic view of the front view structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the three-dimensional structure of the steel crown beam of the present invention;
fig. 4 is a schematic view of the three-dimensional structure of the upright post of the present invention.
In the figure: 1 high-pressure jet grouting pile, 2 upright columns, 3 steel crown beams, 4 high-strength bolts, 5 hoisting holes, 6 preformed holes, 7 fixing holes and 8 mounting holes.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1-4, the utility model provides a novel foundation ditch support mode steel crown beam's technical scheme:
the first embodiment is as follows:
according to the figures 1-4, the foundation pit support unit comprises M foundation pit support units, wherein each foundation pit support unit comprises F upright posts 2 and a high-pressure jet grouting pile 1 arranged in a soil layer, the high-pressure jet grouting pile 1 is formed by drilling at a specified pile position through a high-pressure jet grouting machine and pouring high-strength cement, the high-strength cement is formed by mixing cement and water according to a design proportion through a mixing machine, the upright posts 2 are arranged in the high-pressure jet grouting pile 1, the top ends of the upright posts protrude out of the high-pressure jet grouting pile 1, the upright posts 2 comprise a connecting plate and two side plates, the bottom ends of the side plates are V-shaped ends, the connecting plate is arranged between the two side plates to form an H shape, the upright posts 2 are H-shaped steel upright posts, the upright posts 2 are immediately inserted into the high-pressure jet grouting piles 1 by using a crane after the construction of the high-pressure jet grouting piles 1 is finished, the elevation of the upright posts 2 is controlled and fixed, steel crown beams 3 are arranged on the left side and the right side of the upright posts 2, the steel crown beams 3 are H-shaped steel crown beams, the transverse beam of the steel crown beam 3 is provided with N preformed holes 6, the steel crown beam 3 is detachably arranged on the stand column 2 through a fastener, the stand column 2 is inserted into the traditional high-pressure jet grouting pile 1, the stand columns 2 are connected together through the steel crown beam 3 to bear force, the safety of foundation pit excavation is ensured, the construction method has the advantages of convenience in use, reliable effect and the like, the construction quality is ensured, the construction efficiency is improved, and the work of workers is facilitated, one side of the steel crown beam 3 close to the stand column 2 is provided with F groups of mounting holes 8, each group of mounting holes 8 is provided with D, D fixing holes 7 are respectively arranged in two side plates, the fastener is a high-strength bolt 4, the high-strength bolt 4 penetrates through the corresponding fixing hole 7 and the mounting hole 8 to fixedly install the steel crown beam 3 and the side plates together, the stand column 2 is connected and fixed with the steel crown beam 3 through the high-strength bolt 4, and the stability of the steel crown beam 3 in the construction process is ensured on one hand, on the other hand, after the construction is finished, the steel crown beam 3 can be detached, and the steel crown beam 3 is recycled, so that the construction cost is saved.
When specifically using, the utility model relates to a novel excavation supporting mode steel crown beam 3, at first dig in appointed stake position department through the high pressure jet grouting machine, pour into high strength cement simultaneously into, after the construction of high pressure jet grouting pile 1 is ended, use the crane immediately to inject stand 2 into in the high pressure jet grouting pile 1, and control and stationary mast 2's elevation, then after cement solidifies, excavate stand 2 column cap, later with steel crown beam 3 handling to stand 2 both sides through the crane, and make fixed orifices 7 and mounting hole 8 correspond through high strength bolt 4 with steel crown beam 3 with curb plate fixed mounting together, at last after the construction, can tear steel crown beam 3 down, carry out recycle to steel crown beam 3.
Example two:
on the basis of the first embodiment, the same parts of the present embodiment as those of the first embodiment are not described again, and the differences are as follows: as shown in fig. 4, the upper section of the connecting plate is provided with a lifting hole 5, and by arranging the lifting hole 5, the steel wire rope can conveniently pass through the lifting hole 5, and the upright post 2 can be lifted by using a crane.
Claims (7)
1. The utility model provides a novel excavation supporting mode steel crown beam which characterized in that: including M excavation supporting unit, excavation supporting unit includes F stand and sets up the high-pressure jet grouting pile in the soil horizon, the stand sets up in the high-pressure jet grouting pile, its top protrusion and high-pressure jet grouting pile, and the steel crown roof beam is all installed to the left and right sides of stand.
2. The novel steel crown beam for supporting a foundation pit according to claim 1, which is characterized in that: the steel crown beam is an H-shaped steel crown beam, and N preformed holes are formed in the cross beam of the steel crown beam.
3. The novel steel crown beam for supporting a foundation pit according to any one of claims 1 to 2, characterized in that: the steel crown beam is detachably arranged on the upright post through a fastener.
4. The novel steel crown beam for supporting a foundation pit according to claim 3, wherein: the stand includes connecting plate and two curb plates, and the connecting plate is installed and is constituteed the H type between two curb plates.
5. The novel steel crown beam for supporting a foundation pit according to claim 4, wherein: the steel crown beam is characterized in that one side, close to the stand column, of the steel crown beam is provided with F groups of mounting holes, each group of mounting holes is provided with D mounting holes, D fixing holes are formed in the two side plates, the fasteners are high-strength bolts, and the high-strength bolts penetrate through the corresponding fixing holes and the corresponding mounting holes to fixedly mount the steel crown beam and the side plates together.
6. The novel steel crown beam for supporting a foundation pit according to claim 4, wherein: the upper section of the connecting plate is provided with a hoisting hole.
7. The novel steel crown beam for supporting a foundation pit according to claim 4, wherein: the bottom end of the side plate is a V-shaped end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220161518.3U CN217267506U (en) | 2022-01-21 | 2022-01-21 | Novel steel crown beam adopting foundation pit supporting mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220161518.3U CN217267506U (en) | 2022-01-21 | 2022-01-21 | Novel steel crown beam adopting foundation pit supporting mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217267506U true CN217267506U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220161518.3U Active CN217267506U (en) | 2022-01-21 | 2022-01-21 | Novel steel crown beam adopting foundation pit supporting mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217267506U (en) |
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2022
- 2022-01-21 CN CN202220161518.3U patent/CN217267506U/en active Active
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