CN209779642U - Miniature pile with antiskid structure and retaining wall assembly thereof - Google Patents
Miniature pile with antiskid structure and retaining wall assembly thereof Download PDFInfo
- Publication number
- CN209779642U CN209779642U CN201920174511.3U CN201920174511U CN209779642U CN 209779642 U CN209779642 U CN 209779642U CN 201920174511 U CN201920174511 U CN 201920174511U CN 209779642 U CN209779642 U CN 209779642U
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- sliding structure
- pile
- sealing rod
- micro
- miniature
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- 238000007789 sealing Methods 0.000 claims abstract description 48
- 239000011440 grout Substances 0.000 claims abstract description 36
- 239000002689 soil Substances 0.000 claims abstract description 35
- 239000004567 concrete Substances 0.000 claims abstract description 29
- 230000000875 corresponding Effects 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Abstract
The utility model discloses a micro pile with an anti-sliding structure and a combination body thereof, which comprises a micro pile body, wherein the anti-sliding structure is fixedly arranged along the trend of the micro pile body, the anti-sliding structure is a cylindrical body with a hollow cavity and is positioned at the upper section of the micro pile body, and the lower end of the anti-sliding structure is positioned on the slip crack surface of a landslide soil body; grouting ports are formed in the corresponding surfaces of the miniature pile body and the anti-sliding structure, and grout outlets are formed in the outer wall surface of the anti-sliding structure in a surrounding mode; a sealing rod is detachably arranged in a hollow cavity of the anti-sliding structure, the shape of the sealing rod is matched with that of the hollow cavity of the anti-sliding structure, and the sealing rod is used for sealing the grouting port; the utility model integrates the micro pile body and the anti-sliding structure, so that the micro pile body is filled with concrete entering the micro pile without leakage; the concrete enters the soil body by pulling out the sealing rod, so that the contact area between the soil body and the miniature pile body is increased, the sliding resistance is increased, and the landslide phenomenon can be effectively prevented.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to landslide prevention and cure field especially relates to a miniature stake and barricade assembly thereof with antiskid structure.
[ background of the invention ]
In China, mountainous areas are more, collapse, cracking and barricade dislocation of various landslide disasters occur easily in some areas after railways or highways are built, and the landslide treatment technologies commonly used in China, such as anti-slide piles and prestressed anchor cables, have self limitations. The prestressed anchor cable needs to be tensioned and grouted for several times, the process is complex, construction points are distributed on the whole reinforced slope surface, construction equipment is difficult to move, and the like. The open cut tunnel has high cost, great construction difficulty and long construction period. The anti-slide pile landslide treatment construction machine is small and is suitable for narrow construction operation areas; the construction vibration and the noise are small, and the method is suitable for urban areas with strict control on public hazard; the slenderness ratio is large, and the material consumption of a single pile is small.
The existing miniature pile has poor anti-slip capability, can not effectively prevent landslide, only functions by the friction force of the contact surface of the pile body and the soil body, has small friction force and unsatisfactory landslide prevention effect.
[ Utility model ] content
The utility model aims at providing a miniature stake and barricade assembly with antiskid structure to solve the poor problem of miniature stake cling compound ability.
The utility model adopts the following technical scheme: a micro pile with an anti-sliding structure comprises a micro pile body, wherein the anti-sliding structure is fixedly installed along the direction of the micro pile body, the anti-sliding structure is a cylindrical body with a hollow cavity and is positioned at the upper section of the micro pile body, and the lower end of the anti-sliding structure is positioned on a slip crack surface of a landslide soil body;
Grouting ports are formed in the corresponding surfaces of the miniature pile body and the anti-slip structure, grout outlets are formed in the outer wall surface of the anti-slip structure in a surrounding mode, the grout outlets and the grouting ports are located in the same plane, the grouting ports are used for enabling concrete to flow into the anti-slip structure from the inside of the miniature pile body, and the grout outlets are used for enabling the concrete to flow into soil from the inside of the anti-slip structure;
The sealing rod is detachably mounted in the hollow cavity of the anti-sliding structure, the shape of the sealing rod is matched with that of the hollow cavity of the anti-sliding structure, and the sealing rod is used for sealing the grouting opening.
further, the quantity of antiskid structure is two, and is located the soil-backed side and the soil-facing side of miniature stake body respectively.
Furthermore, the diameter of the outer circle of the micro-pile body is 150-200mm, the diameter of the outer circle of the anti-sliding structure is 30-40mm, and the diameter of the inner circle is 20-28 mm.
Further, a plurality of bar-shaped gaps are formed in the outer wall of the upper end of the anti-sliding structure, the position, corresponding to the gap, of the sealing rod extends outwards to form a handle, and the handle is used for assisting the pull ring to enable the sealing rod to be separated from the anti-sliding structure.
Furthermore, the hole is opened at the upper end of sealing rod, and the hole is used for pulling sealing rod for sealing rod breaks away from anti-skidding structure.
Further, the diameter of the sealing rod is 16-24 mm.
Furthermore, the grout outlet and the grout injection port are both circular, and the arrangement distance is 30 mm.
Furthermore, the grouting opening or the grout outlet is round or long-strip-shaped, and the grout outlet is positioned 2-3cm above the slip fracture surface.
Furthermore, the grouting opening and the grout outlet are circular, the diameters of the grouting opening and the grout outlet are both 10mm, and the grouting opening and the grout outlet are both 10mm multiplied by 50mm when the grouting opening and the grout outlet are in long strip shapes.
The utility model also discloses a miniature stake barricade assembly with antiskid structure, the assembly combines with the barricade by the miniature stake crowd that has antiskid structure to constitute, the upper portion and the barricade brickwork connection of miniature stake crowd, and the lower part of miniature stake crowd is located the soil body, and miniature stake crowd sets up to three rows, and the pile pitch is 1.0m, and the row pitch is 1.0m, and the quincunx is arranged.
The utility model has the advantages that: by integrating the micro pile body and the anti-sliding structure, the micro pile body is filled with concrete entering the micro pile without leakage; the concrete enters the soil body by pulling out the sealing rod, so that the contact area between the soil body and the miniature pile body is increased, the sliding resistance is increased, and the landslide phenomenon can be effectively prevented; by adding the anti-sliding structure, the contact area between the soil body and the miniature pile body is increased, and the anti-sliding force is increased; the anti-skidding structures are arranged on the back soil side and the soil facing side, so that the anti-skidding force is increased, the contact direction of concrete and a soil body is controlled, and the landslide phenomenon is effectively prevented. The anti-sliding force is increased, the shearing strength of the soil body of the slip crack surface is increased, and the friction force of the soil body during sliding is increased.
[ description of the drawings ]
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention without the sealing rod;
FIG. 3 is a top view of the sealing rod of the present invention;
FIG. 4 is a schematic structural view of the present invention with a long strip-shaped slurry outlet;
Fig. 5 is a schematic structural view of the grouting opening of the present invention.
wherein: 1. a micropile body; 2. an anti-skid structure; 3. a grouting port; 4. a pulp outlet; 5. a sealing rod; 6. a hole; and 7, a handle.
[ detailed description ] embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
the utility model discloses a miniature pile with antiskid structure, the utility model discloses a miniature pile that adopts is steel pipe concrete miniature pile, as shown in figure 1, including the miniature pile body 1 and the antiskid structure 2 as an organic whole of interconnect, set up it as an organic whole and reduce the process in order to guarantee when squeezing into the soil body, increase the effect of antiskid, there is antiskid structure 2 along miniature pile body 1 trend fixed mounting, antiskid structure 2 is the cylindricality body of taking the cavity, and lie in the upper segment of miniature pile body 1, namely the length of antiskid structure 2 is less than the length of miniature pile body 1, and set up downwards along the upper end of miniature pile body 1, the lower extreme of antiskid structure 2 lies in the glide plane of the landslide soil body, because the phenomenon that takes place the landslide all is above the glide plane, therefore, just need not set up the antiskid mechanism below the glide plane, reduce the material, avoid extravagant; when the landslide is carried out, the sliding body can move along the sliding crack surface, and the sliding bed at the lower part is stable, so that grouting reinforcement is not needed.
As shown in fig. 4 and 5, grouting ports 3 are formed in corresponding surfaces of a micro pile body 1 and an anti-sliding structure 2, a grout outlet 4 is formed in an outer wall surface of the anti-sliding structure 2 in a surrounding manner, the grout outlet 4 and the grouting port 3 are located in the same plane, the grouting ports 3 are used for enabling concrete to flow into the anti-sliding structure 2 from the micro pile body 1, the grout outlet 4 is used for enabling concrete to flow into a soil body from the anti-sliding structure 2, a sealing rod 5 is detachably mounted in a hollow cavity of the anti-sliding structure 2, the shape of the sealing rod 5 is matched with that of the hollow cavity of the anti-sliding structure 2, when concrete is injected into an inner cavity of the micro pile body 1, the sealing rod 5 is used for sealing the grouting ports 3, and the sealing rod 5 is used for blocking the grouting ports 3 to prevent the concrete from flowing into the anti-sliding structure 2 from the grouting ports 3; when 1 inner chamber of miniature stake body is filled with the concrete, sealing rod 5 is used for taking out from anti-skidding structure 2, make the concrete flow into the soil body through slip casting mouth 3 and grout outlet 4 in proper order, the concrete that flows into the soil body is used for increasing the area of contact of concrete and soil body and increases the antiskid power of miniature stake, can guarantee like this that miniature stake body 1 fills with the concrete, take out behind sealing rod 5, make the concrete in miniature stake body 1 can flow into anti-skidding mechanism along slip casting mouth 3 under the pressurized circumstances through the pressurization in, then flow into in the smooth slope soil body through grout outlet 4.
As shown in fig. 2, the number of the anti-skid structures 2 is two, and the two anti-skid structures 2 are respectively located on the soil-back side and the soil-facing side of the micro pile body 1, so that the load force generated by the landslide is firstly applied to the anti-skid structure 2 on the soil-facing side to the greatest extent and is then transmitted to the anti-skid structure 2 on the soil-back side, because the direction of the load force generated during the landslide is from the soil-facing side to the soil-back side, the two anti-skid structures 2 are respectively designed on the soil-back side and the soil-facing side of the micro pile body 1, so that the anti-skid force can be increased, and the greatest protection effect is achieved.
As shown in fig. 3, a hole 6 has been opened at the upper end of the sealing rod 5, the hole 6 is used for pulling the sealing rod 5, so that the sealing rod 5 is separated from the anti-sliding structure 2, because the size of the sealing rod 5 is small, therefore, the sealing rod 5 is pulled through the hole 6, the difficulty of operation can be reduced, although the hole 6 is provided, because the sealing rod 5 is long, and the gap between the sealing rod and the anti-sliding structure is small, therefore, the difficulty of operation is also large, therefore, a plurality of strip-shaped notches are opened on the outer wall of the upper end of the anti-sliding structure 2, the handle 7 is outwardly extended at the position of the sealing rod 5 corresponding to the notch, the handle 7 is used for assisting the pull ring, so that the sealing rod 5 is separated from the anti-sliding structure 2, through the addition of the handle 7, and other tools are.
The parameters of the side slope are determined based on a physical and mechanical experiment of soil, the worst sliding surface of the side slope can be determined by assistant software, the position of a grout outlet 4 is designed according to the sliding surface, and the grout outlet 4 is positioned 2-3cm above a slip crack surface. The grouting opening 3 or the grout outlet 4 is circular or long-strip-shaped, the grout outlet 4 and the grouting opening 3 are both circular, the arrangement distance is 30mm, the diameter of the grouting opening 3 and the grout outlet 4 is 10mm when the grouting opening and the grout outlet 4 are circular, the size of the grouting opening 3 and the grout outlet 4 is 10mm multiplied by 50mm when the grouting opening and the grout outlet 4 are long-strip-shaped, the excircle diameter of the miniature pile body 1 is 150-200mm, the diameter of the sealing rod 5 is 16-24mm, the excircle diameter of the miniature pile body 1 is 150-200mm, the excircle diameter of the anti-sliding structure 2 is 30-40mm, and the inner circle diameter is 20-28 mm.
the utility model also discloses a miniature pile retaining wall assembly with anti-sliding structure, the assembly is composed of a miniature pile group with anti-sliding structure 2 and a retaining wall, the upper part of the miniature pile group is connected with the retaining wall masonry, the lower part of the miniature pile group is positioned in the soil body, the miniature pile group is arranged into three rows, the pile distance is 1.0M, the row distance is 1.0M, the quincunx arrangement is realized, the miniature pile is arranged into three rows, the pile distance is 1.0M, the row distance is 1.0M, the quincunx arrangement is realized, the pile body adopts a hot rolling seamless steel pipe with 1D102 x 7mm of interpolation, the cement grout is injected into the pile body hole with 0.5-1Mpa grouting pressure, the length of the miniature pile is 12.0M, the pile top enters the retaining wall 1.5M, the retaining wall adopts M7.5 grouted rubble masonry, the wall height is 4.5M, the wall top width is 1M, the foundation burial depth is 1.5M, the width of 1 step is 1.0M, the height of the expansion site, the slope of the step is 0.5M, the slope of the slope is 0: 3 back, 1 settlement joint is arranged every 10m of the retaining wall, the width of the settlement joint is 2cm, and the settlement joint is filled with asphalt felt. The drain holes are arranged at an interval of 2.0m in a quincunx arrangement.
The wall body provided with the retaining wall has wide application in slope engineering, and can effectively prevent the collapse and the slippage of the soil body. Retaining wall has multiple classification mode, but traditional retaining wall easily takes place to overturn and destroys, like gravity retaining wall. The gravity retaining wall body built by masonry and plain concrete has weak bending resistance. The overturning moment and thrust caused by the earth pressure behind the wall are mainly balanced by the anti-overturning moment under the action of the gravity of the retaining wall and the anti-sliding force of the base. In order to obtain a large anti-overturning moment and a large anti-sliding force, the gravity retaining wall usually needs a large size, and in a region with a small space, large-area retaining wall construction is difficult, and the application of the gravity retaining wall is greatly restricted. On the other hand, large-area retaining wall construction brings larger base pressure to the foundation, and certain requirements are provided for the bearing capacity of the foundation.
The engineering experience of the slide-resistant pile shows that the slide-resistant pile can effectively control the deformation of the side slope, has good tensile and bending resistance, and has very wide application in the traditional side slope management engineering. However, the conventional slide-resistant piles have certain limitations in engineering applications. In mountainous areas with complex geological conditions, construction appliances and materials are difficult to transport, the construction site is narrow, and the traditional large-diameter slide-resistant pile is difficult to construct. Secondly, in order to obtain a large horizontal resistance, the slide resistant piles need to be driven into a stable ground, and the drilling depth is large. The traditional slide-resistant pile has limited drilling depth and high cost. The mini-pile adopts miniaturized and light equipment to drill, can drill into deep stratum and is very economical.
Combine retaining wall and miniature stake, can reduce the effect section of retaining wall effectively, the bearing capacity of foundation can be improved to the miniature stake simultaneously, has expanded the range of application of retaining wall. Meanwhile, the combination of the retaining wall and the miniature pile can effectively improve the anti-sliding capability of the miniature pile, the foundation of the retaining wall on the upper portion plays a role of connecting the beams, the integrity of a miniature pile system is improved, and the function of the miniature pile in slope management can be effectively enhanced.
The micro-pile retaining wall structure is applied to a wide structural form in engineering practice, and has the characteristics of simple construction, reliable structure and the like. Due to the reinforcement effect of the micro-piles on the substrate, the shear resistance, the sliding resistance and the overturning resistance of the micro-pile retaining wall combined structure are obviously improved, and the size of the retaining wall and the earthwork excavation amount are also reduced. The miniature pile is constructed by light machinery, has small requirements on site space, and has the characteristics of small disturbance slope and the like. After the construction of miniature stake is accomplished, just begin to carry out the construction of barricade after having had preliminary reinforcement to the side slope promptly to the stability of side slope when having increased the barricade construction has improved the security of construction.
The utility model discloses a workflow and application method:
determining parameters of the side slope based on a physical and mechanical experiment of soil, and determining the most unfavorable sliding surface, namely a slip crack surface, of the side slope by aid of assistant forward software;
Driving the integrated micro pile body 1 and the anti-sliding structure 2 into the ground needing slope treatment to form a micro pile group, so that the lower end of the micro pile is positioned on a slip crack surface;
Concrete is injected into the inner cavity of the micro pile body 1, and at the moment, the sealing rod 5 can block the grouting opening 3 to prevent the concrete from flowing into the anti-skid structure 2 from the grouting opening 3;
after the micro pile body 1 is filled with concrete, the sealing rod 5 is pulled out of the anti-sliding structure 2;
Pressurizing concrete in the micro pile body 1, wherein the pressurized concrete flows into the anti-skid structure 2 from the micro pile body 1 through the grouting opening 3;
then the concrete flows into the soil body from the anti-skid structure 2 through the grout outlet 4, the concrete flowing into the soil body is rapidly condensed into blocks after contacting the soil body, and the contact area of the concrete and the soil body is increased to increase the anti-skid force of the micro pile.
Claims (10)
1. the micro pile with the anti-sliding structure is characterized by comprising a micro pile body (1), wherein the anti-sliding structure (2) is fixedly installed along the trend of the micro pile body (1), the anti-sliding structure (2) is a cylindrical body with a hollow cavity and is positioned at the upper section of the micro pile body (1), and the lower end of the anti-sliding structure (2) is positioned on a slip crack surface of a landslide soil body;
Grouting ports (3) are formed in the corresponding surfaces of the miniature pile body (1) and the anti-sliding structure (2), grout outlets (4) are formed in the outer wall surface of the anti-sliding structure (2) in a surrounding mode, the grout outlets (4) and the grouting ports (3) are located in the same plane, the grouting ports (3) are used for enabling concrete to flow into the anti-sliding structure (2) from the miniature pile body (1), and the grout outlets (4) are used for enabling the concrete to flow into a soil body from the anti-sliding structure (2);
Sealing rods (5) are detachably mounted in the hollow cavity of the anti-sliding structure (2), the shape of each sealing rod (5) is matched with the hollow cavity of the anti-sliding structure (2), and the sealing rods (5) are used for sealing the grouting openings (3).
2. The micro-pile with the anti-skid structure as claimed in claim 1, wherein the number of the anti-skid structure (2) is two, and the anti-skid structure is respectively located on the soil back side and the soil facing side of the micro-pile body (1).
3. the micropile with the anti-sliding structure according to claim 2, wherein the diameter of the outer circle of the micropile body (1) is 150-200mm, the diameter of the outer circle of the anti-sliding structure (2) is 30-40mm, and the diameter of the inner circle is 20-28 mm.
4. the micro pile with the anti-sliding structure according to claim 1, wherein a plurality of strip-shaped gaps are formed on the outer wall of the upper end of the anti-sliding structure (2), a handle (7) extends outwards from the position of the sealing rod (5) corresponding to the gaps, and the handle (7) is used for assisting the pull ring to enable the sealing rod (5) to be separated from the anti-sliding structure (2).
5. The micro-pile with the anti-sliding structure is characterized in that the upper end of the sealing rod (5) is provided with a hole (6), and the hole (6) is used for pulling the sealing rod (5) to enable the sealing rod (5) to be separated from the anti-sliding structure (2).
6. a micropile with a slip-resistant construction according to claim 5, characterised in that the sealing rod (5) has a diameter of 16-24 mm.
7. The micropile with the anti-sliding structure according to any one of claims 1 to 6, wherein the grout outlet (4) and the grout inlet (3) are circular and are arranged at a distance of 30 mm.
8. The micropile with the anti-sliding structure is characterized in that the grouting opening (3) or the grout outlet (4) is round or long, and the grout outlet (4) is positioned 2-3cm above the slip crack surface.
9. the micropile with the anti-sliding structure according to claim 8, wherein the grouting opening (3) and the grout outlet (4) are circular and have a diameter of 10mm, and the grouting opening (3) and the grout outlet (4) are elongated and have a size of 10mm x 50 mm.
10. the utility model provides a miniature stake barricade assembly with antiskid structure, its characterized in that, the assembly comprises miniature stake crowd and the barricade combination that has antiskid structure (2), the upper portion and the barricade brickwork of miniature stake crowd link, the lower part of miniature stake crowd is located the soil body, miniature stake crowd sets up to three rows, and the pile pitch is 1.0m, and the row spacing is 1.0m, and the quincunx is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174511.3U CN209779642U (en) | 2019-01-31 | 2019-01-31 | Miniature pile with antiskid structure and retaining wall assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174511.3U CN209779642U (en) | 2019-01-31 | 2019-01-31 | Miniature pile with antiskid structure and retaining wall assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209779642U true CN209779642U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920174511.3U Expired - Fee Related CN209779642U (en) | 2019-01-31 | 2019-01-31 | Miniature pile with antiskid structure and retaining wall assembly thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN209779642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106992A (en) * | 2021-04-28 | 2021-07-13 | 西安工业大学 | Construction method of variable cross-section anchoring type micro pile |
| CN113718768A (en) * | 2021-09-02 | 2021-11-30 | 王冲 | Honeycomb soil nail soil body reinforcing accessory for improving slope stability |
-
2019
- 2019-01-31 CN CN201920174511.3U patent/CN209779642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106992A (en) * | 2021-04-28 | 2021-07-13 | 西安工业大学 | Construction method of variable cross-section anchoring type micro pile |
| CN113718768A (en) * | 2021-09-02 | 2021-11-30 | 王冲 | Honeycomb soil nail soil body reinforcing accessory for improving slope stability |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20220131 |
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| CF01 | Termination of patent right due to non-payment of annual fee |