CN214695638U - Novel water-washed pore-forming shaped steel underground structure supporting device - Google Patents
Novel water-washed pore-forming shaped steel underground structure supporting device Download PDFInfo
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- CN214695638U CN214695638U CN202120099910.5U CN202120099910U CN214695638U CN 214695638 U CN214695638 U CN 214695638U CN 202120099910 U CN202120099910 U CN 202120099910U CN 214695638 U CN214695638 U CN 214695638U
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Abstract
The utility model discloses a novel water-washed pore-forming type steel foundation pit supporting device, which comprises supporting piles, crown beams, fixing rings, rib plate beams and baffles, wherein the supporting piles are arranged at the boundary of the side wall of a foundation pit; the fixing ring is arranged on the outer side of the support pile, and a plurality of rib plate adjusting pieces are arranged in the fixing ring to adjust the distance of the rib plate beam; during construction, the supporting piles are inserted in a covering and pressing mode after the high-pressure water is used for flushing and mixing quick pore-forming, then the anchor is pulled at the top, in the earthwork excavation process, the baffle is installed while excavation is carried out, the square wood wedge is used for reinforcing and fixing the supporting piles, the profile steel foundation pit supporting device is formed, the side wall of the foundation pit is supported, and the structure has the advantages of being high in construction benefit, low in labor force and construction cost and good in safety and civilization effect of a construction site.
Description
Technical Field
The utility model discloses construction equipment field, concretely relates to novel water-washed pore-forming shaped steel excavation supporting device.
Background
In the process of foundation pit construction, measures such as a soil retaining structure, underground water control, environmental protection and the like required for ensuring the safety and stability of an underground space formed by downward excavation of the ground during the construction of an underground structure are called foundation pit engineering, according to the excavation depth of the foundation pit, a deep foundation pit is generally specified to be an excavation depth of more than 5 meters (including 5 meters) or more than three layers (including three layers) of a basement, the foundation pit with the depth of less than 5 meters is a shallow foundation pit, and in the process of foundation pit construction, the excavation and support of the foundation pit are always difficult points and key points of the foundation pit engineering;
in the process of excavation and support of a foundation pit, the foundation pit is usually required to be 'due to geological conditions', and in a popular way, a corresponding support structure is required to be designed according to the geological conditions of the foundation pit; taking the construction of shallow foundation support in the Maousu desert zone in Ullin area of Shaanbei as an example: the soil quality of the zone is sand soil quality, the mobility of sand is strong, when the underground rainwater box culvert is constructed, the slope releasing construction cannot be carried out due to the limitation of the site during the excavation of the foundation pit, the construction of large-scale mechanical equipment cannot be allowed due to the existence of high-voltage lines in the surrounding environment, the project construction period is short, and therefore the side wall of the foundation pit needs to be supported by adopting a water-washed hole-forming type steel foundation pit support to support the foundation pit.
Disclosure of Invention
To the defect that above-mentioned prior art exists, the utility model aims to provide a novel water-washed pore-forming shaped steel excavation supporting device, during the construction, mix after quick pore-forming cover through the high-pressure water-washed and press and insert a fender pile, then at the top anchor, in the earthwork excavation process, limit excavation limit installation baffle and with the square timber wedge consolidate firm back formation shaped steel excavation supporting device, support the foundation ditch lateral wall, this structure has the benefit of construction height, labour and construction cost all reduce, the better characteristics of job site safety civilization effect.
In order to achieve the above object, the utility model adopts the following technical scheme:
a novel water-washed pore-forming type steel foundation pit supporting device comprises supporting piles, crown beams, fixing rings, rib plate beams and baffles, wherein the supporting piles are arranged at the boundary of the side wall of a foundation pit; the fixing ring is arranged on the outer side of the support pile, and a plurality of rib plate adjusting pieces are arranged in the fixing ring to adjust the distance of the rib plate beam.
Preferably, the anchor pulling mechanism comprises an embedded steel pipe and an anchor cable, one end of the anchor cable is connected with the crown beam through a fixing bolt, the other end of the anchor cable is connected with the embedded steel pipe through a connecting ring, and the embedded steel pipe is preset on the plane of the top wall of the foundation pit.
Preferably, the rib plate adjusting part moves along a sliding groove formed in the fixing ring and comprises a U-shaped clamping block, a sleeve, a threaded connecting rod and an adjusting nut which are symmetrically arranged, a U-shaped clamping groove is formed in the U-shaped clamping block and matched with the rib plate beam, the sleeve is a threadless sleeve, one end of the sleeve is connected with the U-shaped clamping block, the other end of the sleeve is movably sleeved with one end of the threaded connecting rod, and the other end of the threaded connecting rod is connected with the U-shaped clamping block; the adjusting nut is arranged on the threaded connecting rod at the lower end of the sleeve and is in threaded connection with the threaded connecting rod.
Preferably, the supporting piles and the crown beams are all steel section beams.
Preferably, the ribbed plate beam is a square wood wedge.
Preferably, the baffle is made of a steel plate material.
The utility model has the advantages that: the utility model discloses a novel water-washed pore-forming shaped steel excavation supporting device, compared with the prior art, the utility model discloses an improvement part lies in:
the utility model designs a novel water-washed pore-forming type steel foundation pit supporting device, which comprises a supporting pile, a crown beam, a fixing ring, a rib plate beam and a baffle plate, wherein the supporting pile is pressed and inserted after high-pressure water-washed rapid pore-forming before shallow pit construction is carried out on sand layer soil, and then an anchor is pulled at the top; then, in the earth excavation process, installing a baffle while excavating, and using a square wood wedge for reinforcing and fixing to form a profile steel foundation pit supporting device for supporting the side wall of the foundation pit; in the construction process, the supporting structure does not need a large working surface, the size of materials required by construction is small, equipment is small, the influence on a sandy field is reduced, the mechanical construction problem is solved, and the problem that slope release cannot be realized is solved by utilizing a profile steel combined device; the construction method has the advantages of high construction benefit, reduction of labor force and construction cost, and good safety and civilization effect of a construction site.
Drawings
Figure 1 is the utility model discloses pore-forming in-process pore-forming is with washing by water support's schematic structure view.
Fig. 2 is the utility model discloses water-washed pore-forming shaped steel excavation supporting device's schematic structure.
Fig. 3 is the utility model discloses the foundation ditch side crosscut under water-washed pore-forming shaped steel excavation supporting device user state.
Figure 4 is the utility model discloses the local enlarger of water-washed pore-forming shaped steel underground structure supporting device A department.
Fig. 5 is a schematic structural view of the rib plate adjusting member of the present invention.
Wherein: 1. the pile comprises supporting piles, a crown beam, a fixing ring, a rib plate beam, a fixing bolt, a pre-buried steel pipe, an anchor rope, a baffle plate, a rib plate adjusting piece, a U-shaped clamping block, a sleeve, a threaded connecting rod and a sleeve, wherein the crown beam is 2, the fixing ring is 3, the rib plate beam is 4, the fixing bolt is 5, the pre-buried steel pipe is 6, the anchor rope is 7, the baffle plate is 8, the rib plate adjusting piece is 9, the U-shaped clamping block is 91, the sleeve is 92, the threaded connecting rod is 93, the adjusting nut is 94, and the U-shaped clamping groove is 95.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.
Referring to the attached drawings 1-5, the novel water-washed pore-forming type steel foundation pit supporting device comprises supporting piles 1, crown beams 2, fixing rings 3, rib plate beams 4 and baffle plates 8, wherein the supporting piles 1 are arranged at the boundary of the side wall of a foundation pit in advance in a water-washed pore-forming mode, the crown beams 2 are arranged at the top ends of the supporting piles 1 adjacent to each other and are connected with the supporting piles 1 in a welding mode, the crown beams 2 are connected with the top wall of the foundation pit through anchor pulling mechanisms, so that the upper part of the supporting device and the top wall of the foundation pit are integrated, and a gap between two adjacent supporting piles 1 is sealed through the baffle plates 8, so that collapse of the side wall of the foundation pit is prevented in the excavation process; the fixing ring 3 is arranged on the outer side of the support pile 1, the plurality of rib plate adjusting pieces 9 are arranged in the fixing ring 3, the distance between the rib plate beams 4 is adjusted by the rib plate adjusting pieces 9, the rib plate adjusting pieces are uniformly distributed, and the baffle plate 8 can be better supported.
Preferably, the anchor pulling mechanism comprises an embedded steel pipe 6 and an anchor cable 7, one end of the anchor cable 7 is connected with the crown beam 2 through a fixing bolt 5, the other end of the anchor cable is connected with the embedded steel pipe 6 through a connecting ring, and the embedded steel pipe 6 is embedded in the plane of the top wall of the foundation pit, so that the stability of the supporting device is enhanced.
Preferably, the rib plate adjusting member 9 moves along a sliding groove formed in the fixing ring 3, and includes a U-shaped block 91, a sleeve 92, a threaded connecting rod 93 and an adjusting nut 94, which are symmetrically arranged, a U-shaped slot 95 is formed in the U-shaped block 91, and the U-shaped slot 95 is used in cooperation with the rib plate beam 4, that is, when in use, the rib plate beam 4 is clamped in the U-shaped slot 95; the sleeve 92 is a threadless sleeve, one end of the sleeve is connected with the U-shaped fixture block 91, the other end of the sleeve is movably sleeved with one end of the threaded connecting rod 93, and the other end of the threaded connecting rod 93 is connected with the U-shaped fixture block 91; the adjusting nut 94 is arranged on the threaded connecting rod 93 at the lower end of the sleeve 92 and is in threaded connection with the threaded connecting rod 93, namely when the adjusting nut is used, the U-shaped clamping block 91 is pushed to move by rotating the adjusting nut 9, so that the distance between the rib plate beams 4 is adjusted, the rib plate beams are uniformly distributed, the baffle plate 8 can be better supported, and the baffle plate 8 is prevented from collapsing due to large overturning force.
Preferably, for the convenience of construction and quick connection, the support piles 1 and the crown beams 2 are steel section beams.
Preferably, for the convenience of construction, the rib plate beam 4 preferably uses a square wood wedge.
Preferably, the baffle plate 8 is made of a steel plate material.
Novel water-washed pore-forming shaped steel excavation supporting device's work progress includes:
(1) firstly, before shallow foundation pit construction is carried out on sand bed soil, a supporting pile 1 is inserted in a covering and pressing mode after high-pressure water flushing and rapid hole forming is carried out, and then an anchor is pulled at the top;
(2) and then in the earth excavation process, installing a baffle while excavating, and using a square wood wedge to reinforce and fix to form a profile steel foundation pit supporting device to support the side wall of the foundation pit.
Note that: in the work progress to a fender pile 1, need use the bath support as shown in figure 1, and be provided with the magnetic force plumb bob on the bath support, during the use, can effective control the straightness that hangs down of a fender pile 1 through bath support + magnetic force plumb bob, it is very fast to adopt water-washed pressure + excavator to cover die mould steel supporting speed, and the material that water-washed pore-forming shaped steel excavation supporting device used is energy-concerving and environment-protective, can have enough to meet the need the use, can shorten the time limit for a project by a wide margin, and the benefit of construction is higher.
Novel water-washed pore-forming shaped steel excavation supporting device's construction process does:
positioning and paying off (positioning of a designed pile is determined) → water flushing equipment is in place (a variable-frequency booster pump is used as power, a water flushing pipe is arranged on two sides of supporting section steel) → setting of a guiding and positioning support (welding of section steel, and a guide hole is arranged), and the support is stable) → water flushing hole forming (high-pressure water of a flushing pipe on two sides of section steel) → lifting of section steel, covering and pressing (lifting and pressing of an excavator) → precision inspection (the support is provided with a magnetic line hammer, and a total station controls verticality) → installation of a crown beam (the crown beam is welded with the supporting pile by the section steel), → top anchor (a ground anchor steel pipe is connected with a steel wire rope and the crown beam) → earth excavation, installation of a steel plate (the steel plate is placed in a positioning clamp welded with the section steel) → wood wedge reinforcement (fixing the steel plate) → foundation completion, earth backfilling (rainwater box construction) → steel plate, and dismantling and recovering the section steel.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a novel water-washed pore-forming shaped steel excavation supporting device which characterized in that: the foundation pit supporting structure comprises supporting piles (1), crown beams (2), fixing rings (3), rib plate beams (4) and baffles (8), wherein the supporting piles (1) are arranged at the boundary of the side wall of a foundation pit, the crown beams (2) are arranged at the top ends of the supporting piles (1) which are adjacent to each other and are welded with the supporting piles (1), the crown beams (2) are connected with the top wall of the foundation pit through a pulling anchor mechanism, and a gap between two adjacent supporting piles (1) is blocked through the baffles (8); the fixing ring (3) is arranged on the outer side of the support pile (1), and a plurality of rib plate adjusting pieces (9) are arranged in the fixing ring (3) to adjust the distance of the rib plate beam (4).
2. The novel water-washed hole-forming type steel foundation pit supporting device as claimed in claim 1, wherein: the anchor pulling mechanism comprises an embedded steel pipe (6) and an anchor cable (7), one end of the anchor cable (7) is connected with the crown beam (2) through a fixing bolt (5), the other end of the anchor cable is connected with the embedded steel pipe (6) through a connecting ring, and the embedded steel pipe (6) is preset on the plane of the top wall of the foundation pit.
3. The novel water-washed hole-forming type steel foundation pit supporting device as claimed in claim 1, wherein: the rib plate adjusting part (9) moves along a sliding groove formed in the fixing ring (3) and comprises a U-shaped clamping block (91), a sleeve (92), a threaded connecting rod (93) and an adjusting nut (94), wherein the U-shaped clamping block (91), the sleeve (92), the threaded connecting rod (93) and the adjusting nut are symmetrically arranged, a U-shaped clamping groove (95) is formed in the U-shaped clamping block (91), the U-shaped clamping groove (95) is matched with the rib plate beam (4) for use, the sleeve (92) is a threadless sleeve, one end of the sleeve is connected with the U-shaped clamping block (91), the other end of the sleeve is movably sleeved with one end of the threaded connecting rod (93), and the other end of the threaded connecting rod (93) is connected with the U-shaped clamping block (91); the adjusting nut (94) is arranged on the threaded connecting rod (93) at the lower end of the sleeve (92) and is in threaded connection with the threaded connecting rod (93).
4. The novel water-washed hole-forming type steel foundation pit supporting device as claimed in claim 1, wherein: the supporting piles (1) and the crown beams (2) are all steel section beams.
5. The novel water-washed hole-forming type steel foundation pit supporting device as claimed in claim 1, wherein: the ribbed plate beam (4) is a square wood wedge.
6. The novel water-washed hole-forming type steel foundation pit supporting device as claimed in claim 1, wherein: the baffle plate (8) is made of a steel plate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120099910.5U CN214695638U (en) | 2021-01-14 | 2021-01-14 | Novel water-washed pore-forming shaped steel underground structure supporting device |
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| CN202120099910.5U CN214695638U (en) | 2021-01-14 | 2021-01-14 | Novel water-washed pore-forming shaped steel underground structure supporting device |
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| CN214695638U true CN214695638U (en) | 2021-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892673A (en) * | 2022-05-25 | 2022-08-12 | 山东曼凯机械化工程有限公司 | Foundation pit supporting construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892673A (en) * | 2022-05-25 | 2022-08-12 | 山东曼凯机械化工程有限公司 | Foundation pit supporting construction method |
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