CN212506236U - Concrete pouring and supporting device for mechanical hole-forming pile in karst cave - Google Patents
Concrete pouring and supporting device for mechanical hole-forming pile in karst cave Download PDFInfo
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- CN212506236U CN212506236U CN202021999667.4U CN202021999667U CN212506236U CN 212506236 U CN212506236 U CN 212506236U CN 202021999667 U CN202021999667 U CN 202021999667U CN 212506236 U CN212506236 U CN 212506236U
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Abstract
A supporting device for pouring concrete in solution cavity when a mechanical hole-forming pile meets comprises a steel reinforcement cage, an electric hydraulic rod, an arc-shaped protective steel plate and an auxiliary arc-shaped steel protective plate, wherein the arc-shaped protective steel plate is temporarily fixed on the outer side of the steel reinforcement cage; the electric hydraulic rod is horizontally arranged on the reinforcement cage, one end of the electric hydraulic rod is in contact with the arc-shaped protection steel plate, and the other end of the electric hydraulic rod is in contact with the auxiliary arc-shaped steel protection plate. The beneficial effects of this technical scheme lie in: the arc-shaped protection steel plate is arranged on the outer surface of the reinforcement cage, and the arc-shaped protection steel plate tightly covers the karst cave opening through the electric hydraulic rod, so that when the concrete is poured, the phenomena of slurry leakage and hole collapse are effectively avoided by using the method, and the construction efficiency is effectively improved while the waste of the concrete is avoided.
Description
Technical Field
The utility model belongs to the building construction field especially relates to a method and supporting device that solution cavity concrete was pour are met to machinery pore-forming stake.
Background
The karst areas in China are widely distributed, many karsts exist in many areas, and the karst caves mainly have the phenomenon that limestone is gradually eroded under the action of water, acidic substances, microorganisms and the like to form cavities, so that the karst caves are basically arranged in places with the limestone. The pile foundation construction in the karst area is always a difficult problem which puzzles the engineering world, and particularly, under the condition that the bearing capacity of a single pile is large, the phenomena of slurry leakage and hole collapse are frequently generated, and sometimes even large-area ground subsidence is generated, so that the safety of constructors and mechanical equipment is endangered, the construction difficulty is very high, and the construction progress of the hole pile is influenced.
Currently, in view of this situation, a general processing method includes:
(1) the karst cave is not processed, concrete is directly poured, and when the concrete is poured in the mode, on one hand, great potential safety hazards exist, and on the other hand, the size and the volume of the karst cave cannot be predicted, so that a great amount of concrete waste can be caused when the concrete is poured.
(2) Pouring concrete into karst cave
There are many different construction methods for concrete placement in a cavern. For example, the concrete is directly poured into the karst cave or the concrete is poured after the filler is arranged in the karst cave, and the general principle is to fill the karst cave with the filler. For example, utility model publication No. CN111549775A discloses a method for constructing a hole pile under karst geological conditions, which comprises excavating rock soil on the ground to form a pile hole, preparing a retaining wall template when the pile hole intersects with an underground karst cave, covering the underground karst cave mouth part intersected with the pile hole with the retaining wall template, filling the retaining wall template with a filler on the side close to the underground karst cave, wherein the filler comprises concrete, forming a cofferdam after the concrete is solidified, and then continuously excavating rock soil to form the pile hole.
Although the construction method for pouring concrete in the karst cave avoids the phenomena of slurry leakage and hole collapse, the technical scheme has a great deal of concrete waste.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem that prior art exists, provided a supporting device that mechanical pore-forming stake meets solution cavity concrete and pours, this supporting device's application has solved the hole stake and has pour the hourglass thick liquid that exists and the hole phenomenon of collapsing when involving in the solution cavity, has also avoided the waste of a large amount of concrete simultaneously.
The supporting device for pouring the mechanical hole-forming pile in the case of encountering karst cave concrete comprises a reinforcement cage, an electric hydraulic rod, an arc-shaped protective steel plate and an auxiliary arc-shaped steel protective plate;
processing and customizing an arc-shaped protection steel plate according to the diameter of the hole pile and the size of the karst cave opening, wherein the size of the arc-shaped protection steel plate is larger than that of the karst cave opening;
temporarily fixing the arc-shaped protection steel plate on the outer side of the reinforcement cage, wherein an auxiliary arc-shaped steel protection plate is arranged at a position right opposite to the arc-shaped protection steel plate, and the auxiliary arc-shaped steel protection plate is temporarily fixed on the outer side of the reinforcement cage; the electric hydraulic rod is horizontally arranged on the reinforcement cage, one end of the electric hydraulic rod is in contact with the arc-shaped protective steel plate, and the other end of the electric hydraulic rod is in contact with the auxiliary arc-shaped steel protective plate;
the positions of the arc-shaped protective steel plate and the auxiliary arc-shaped steel protective plate on the reinforcement cage are matched with the elevation of the hole melting opening.
Further, the arc-shaped protection steel plate covers the hole opening, and each edge of the arc-shaped protection steel plate extends by at least 100 mm.
Furthermore, the arc of the arc-shaped protection steel plate is matched with the arc of the steel reinforcement cage.
The beneficial effects of the utility model reside in that: the arc-shaped protection steel plate is arranged on the outer surface of the reinforcement cage, and the arc-shaped protection steel plate tightly covers the karst cave opening through the electric hydraulic rod, so that when the concrete is poured, the phenomena of slurry leakage and hole collapse are effectively avoided by using the method, and the construction efficiency is effectively improved while the waste of the concrete is avoided.
Drawings
FIG. 1 is a schematic structural view of a supporting device for pouring karst cave concrete when a mechanical hole-forming pile is encountered;
in the figure: 1. steel reinforcement cage, 2 arc protection steel sheets, 3 electronic hydraulic stem.
Detailed Description
For a better understanding of the invention, its content is further elucidated below with reference to an example, the embodiments described below with reference to the drawings being illustrative and intended for the purpose of explanation, but not to be construed as limiting the invention.
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
Technical scheme's basic thinking lies in: and (4) determining whether a karst cave exists according to the hole pile formed by the hole, and if so, measuring the elevation and the size of the position of the karst cave opening. And (4) processing and customizing the arc-shaped protection steel plate according to the diameter of the hole pile and the size of the opening of the dissolving hole, wherein the size of the arc-shaped protection steel plate is larger than that of the opening of the dissolving hole. Determining the corresponding position of an arc-shaped protective steel plate in a reinforcement cage according to the elevation of a hole opening, temporarily fixing a steel protective plate to the position, fixing the steel protective plate to an additional reinforcement cage reinforcing hoop at the corresponding elevation position by using an electric hydraulic rod, hanging an auxiliary arc-shaped steel protective plate not less than 200mm multiplied by 200mm at the corresponding position of the reinforcement cage at the other end of the hydraulic rod, and putting the auxiliary arc-shaped steel protective plate into a hole pile along with the reinforcement cage; adjusting the position of the reinforcement cage to ensure that the steel guard plate is matched with the position of the opening of the cave; the electric hydraulic rod is pressed against the steel guard plates at two ends through a remote control device, so that the arc-shaped steel guard plates can completely cover the opening of the molten hole, and a protective layer is reserved for the reinforcement cage; then concrete pouring work is performed.
Utilize the concrete construction process of supporting device does:
the method comprises the following steps: positioning and paying off the hole piles according to the plan;
step two: placing the rotary excavator in place, performing pore-forming construction, removing slag at the bottom of a hole after the construction is finished, and measuring the depth of the hole;
step three: determining the elevation of the karst cave mouth position and the size of the karst cave mouth according to the hole pile confirmation of the formed hole;
step four: manufacturing supporting device
The supporting device comprises a steel reinforcement cage, an electric hydraulic rod, an arc-shaped protective steel plate and an auxiliary arc-shaped steel protective plate;
processing and customizing an arc-shaped protection steel plate according to the diameter of the hole pile and the size of the karst cave opening, wherein the size of the arc-shaped protection steel plate is larger than that of the karst cave opening;
temporarily fixing the arc-shaped protection steel plate on the outer side of the reinforcement cage, wherein an auxiliary arc-shaped steel protection plate is arranged at a position right opposite to the arc-shaped protection steel plate, and the auxiliary arc-shaped steel protection plate is temporarily fixed on the outer side of the reinforcement cage; the electric hydraulic rod is horizontally arranged on the reinforcement cage, one end of the electric hydraulic rod is in contact with the arc-shaped protective steel plate, and the other end of the electric hydraulic rod is in contact with the auxiliary arc-shaped steel protective plate;
the positions of the arc-shaped protective steel plate and the auxiliary arc-shaped steel guard plate on the reinforcement cage are matched with the elevation of the opening of the molten hole;
step five: laying and supporting device
Placing the supporting device in the hole-formed hole pile, and adjusting the position of the supporting device to ensure that the arc-shaped protective steel plate is matched with the position of the karst cave opening;
step six: the electric hydraulic rod is pressed against the steel guard plates at two ends through a remote control device, so that the arc-shaped protection steel plate completely covers the opening of the molten hole, and a protection layer is reserved for the reinforcement cage;
step seven: and (5) pouring concrete for the hole piles.
Compared with the prior art, utilize technical scheme when pouring the hole stake, need not carry out concrete placement to solution cavity itself, only pour the hole stake can. In the work progress, through electronic hydraulic stem with arc protection steel sheet top in solution cavity mouth department, avoided the concrete placement in-process leak thick liquid, the production of hole phenomenon of collapsing, effectively avoided the waste of concrete simultaneously.
The above embodiments have been described primarily for the purpose of illustrating the general principles and key features of the invention. The present invention is not limited to the description of the above embodiments, and various additions, modifications, and substitutions are possible within the scope of the appended claims, for example, the structure of the cover plate may be appropriately changed according to the shape of the terminal box to be used.
Claims (5)
1. The utility model provides a supporting device that mechanical pore-forming pile meets solution cavity concrete and pours which characterized in that:
the supporting device comprises a steel reinforcement cage, an electric hydraulic rod, an arc-shaped protective steel plate and an auxiliary arc-shaped steel protective plate;
temporarily fixing the arc-shaped protection steel plate on the outer side of the reinforcement cage, wherein an auxiliary arc-shaped steel protection plate is arranged at a position right opposite to the arc-shaped protection steel plate, and the auxiliary arc-shaped steel protection plate is temporarily fixed on the outer side of the reinforcement cage; the electric hydraulic rod is horizontally arranged on the reinforcement cage, one end of the electric hydraulic rod is in contact with the arc-shaped protection steel plate, and the other end of the electric hydraulic rod is in contact with the auxiliary arc-shaped steel protection plate.
2. The supporting device for concrete pouring of the mechanical bored pile in the solution cavity according to claim 1, wherein: arc protection steel sheet forms according to hole stake diameter and solution cavity mouth size processing customization, the size of arc protection steel sheet is greater than the size of solution cavity mouth.
3. The supporting device for concrete pouring of the mechanical bored pile in the solution cavity according to claim 1, wherein: the positions of the arc-shaped protective steel plate and the auxiliary arc-shaped steel protective plate on the reinforcement cage are matched with the elevation of the hole melting opening.
4. The supporting device for concrete pouring of the mechanical bored pile in the solution cavity according to claim 1, wherein: the arc-shaped protective steel plate covers the opening of the hole and extends by at least 100 mm on each side.
5. The supporting device for concrete pouring of the mechanical bored pile in the solution cavity according to claim 1, wherein: the arc of arc protection steel sheet and steel reinforcement cage arc phase-match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021999667.4U CN212506236U (en) | 2020-09-14 | 2020-09-14 | Concrete pouring and supporting device for mechanical hole-forming pile in karst cave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021999667.4U CN212506236U (en) | 2020-09-14 | 2020-09-14 | Concrete pouring and supporting device for mechanical hole-forming pile in karst cave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212506236U true CN212506236U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021999667.4U Active CN212506236U (en) | 2020-09-14 | 2020-09-14 | Concrete pouring and supporting device for mechanical hole-forming pile in karst cave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212506236U (en) |
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2020
- 2020-09-14 CN CN202021999667.4U patent/CN212506236U/en active Active
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