CN112681982A - Piping prevention device for full-protection cylinder of full-slewing drilling machine - Google Patents
Piping prevention device for full-protection cylinder of full-slewing drilling machine Download PDFInfo
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- CN112681982A CN112681982A CN202011295500.4A CN202011295500A CN112681982A CN 112681982 A CN112681982 A CN 112681982A CN 202011295500 A CN202011295500 A CN 202011295500A CN 112681982 A CN112681982 A CN 112681982A
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Abstract
The invention provides a piping prevention device for a full-protection cylinder of a full-slewing drilling machine, which comprises: protecting the cylinder; wherein, the middle position of the protective cylinder is provided with a plurality of protective cylinder water permeable holes along the circumferential direction of the protective cylinder; a permeable soil isolation layer is arranged at the position of the periphery of the protective cylinder, which is provided with the permeable holes of the protective cylinder. According to the invention, the underground water around the protective cylinder enters the protective cylinder from the water permeable holes of the protective cylinder through the water permeable holes of the protective cylinder, so that the piping phenomenon caused by sand particles flowing into the protective cylinder due to the fact that the underground water enters the protective cylinder from the bottom of the protective cylinder is avoided; through the soil layer that permeates water that the periphery in the hole of permeating water of protecting a section of thick bamboo was arranged, form and permeate water and separate soil system, make in the process of borrowing groundwater get into from permeating water and separate soil system and protect a section of thick bamboo in, avoided leading to the fact piping, the husky phenomenon of running into from protecting a bottom portion entering and protecting a section of thick bamboo, reach and guarantee to protect water around a section of thick bamboo and block in sand granule gets into protecting a section of thick bamboo when the hole of permeating water of protecting a section of thick bamboo gets into protecting a section of thick bamboo, and then reach the purpose.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to a piping prevention device for a full-protection cylinder of a full-slewing drilling machine.
Background
In the construction of urban bridges, newly-built bridges are inevitably intersected with subways and tunnels, and meanwhile, the subways and the tunnels have higher requirements on deformation of surrounding soil bodies, so that the traditional pile foundation construction methods with large disturbance on the stratum and large noise, such as cast-in-situ bored piles, cannot meet the requirements. Therefore, the construction of the full-casing full-slewing drilling machine is mostly adopted under the working condition.
The construction of the full-slewing drilling machine has the characteristics of small disturbance to soil layers, small deformation and the like, but the piping phenomenon is easy to occur in the soil taking process in the pile casing under the complex working conditions of thicker sand layers, high water level and the like, and no practical and feasible preventive measures are available for the construction.
Disclosure of Invention
In view of the above, the invention provides a piping prevention device for a full-protection cylinder of a full-rotation drilling machine, and aims to solve the existing problems.
The invention provides a piping prevention device for a full-protection cylinder of a full-slewing drilling machine, which comprises: protecting the cylinder; a plurality of casing water-permeable holes are formed in the middle of the casing along the circumferential direction of the casing, so that underground water on the periphery of the casing flows into the casing from the casing water-permeable holes; and a permeable soil isolation layer is arranged at the position of the periphery of the pile casing, which is provided with permeable holes of the pile casing, and is used for preventing sandy soil particles from entering the pile casing.
Furthermore, the piping device is prevented to above-mentioned full rotary drilling machine protects a section of thick bamboo entirely, protect a section of thick bamboo water permeable hole and be the multiunit and follow the axial interval setting of protecting a section of thick bamboo.
Furthermore, in the full-cylinder-protection piping-prevention device of the full-slewing drilling machine, the water-permeable holes of the cylinders are arranged in a ring shape and are uniformly distributed.
Further, the piping device is prevented to above-mentioned full rotary drilling machine protects a section of thick bamboo entirely, the periphery that permeates water and separate the soil layer is equipped with the inoxidizing coating, is used for right it separates the soil layer to permeate water and protect.
Furthermore, above-mentioned full rotary drilling machine protects a section of thick bamboo entirely and prevents piping device, be equipped with the protection hole of permeating water that a plurality of interval set up along its circumference on the inoxidizing coating, so that the groundwater of protecting a section of thick bamboo periphery flows through in proper order the inoxidizing coating, the soil layer of permeating water with protect a section of thick bamboo.
Further, according to the full-protective-cylinder piping prevention device of the full-slewing drilling machine, the protective layer is a metal pipe sleeved on the periphery of the water-permeable soil-separating layer.
Further, according to the piping prevention device for the full-protection cylinder of the full-slewing drilling machine, the metal pipe is an iron sheet pipe.
Further, the water-permeable soil-isolation layer is of a net structure.
Further, according to the full-protective-cylinder piping prevention device of the full-slewing drilling machine, the bottom end of the protective cylinder is provided with the cutting tool bit for cutting a soil layer.
Further, according to the piping prevention device for the full-protective cylinder of the full-slewing drilling machine, the number of the cutting tool bits is multiple, and the cutting tool bits are arranged at the bottom end of the protective cylinder at intervals along the circumferential direction of the protective cylinder.
According to the piping prevention device for the full-protective cylinder of the full-slewing drilling machine, groundwater around the protective cylinder enters the protective cylinder from the water permeable hole of the protective cylinder through the water permeable hole of the protective cylinder, and the piping phenomenon caused by sand particles flowing into the protective cylinder when the groundwater enters the protective cylinder from the bottom of the protective cylinder is avoided; the permeable soil-isolation system is formed by arranging the permeable soil-isolation layer at the periphery of the permeable hole of the pile casing, so that underground water enters the pile casing from the permeable soil-isolation system in the soil taking process, the phenomena of piping and sand flowing caused by entering the pile casing from the bottom of the pile casing are avoided, the purpose of preventing sandy soil particles from entering the pile casing while ensuring that water around the pile casing enters the pile casing along the permeable hole of the pile casing is achieved, and further the purpose of sandy soil particle loss is achieved; the protective layer arranged on the periphery of the water-permeable soil-separating layer can protect the water-permeable soil-separating layer from being damaged. The device installation is simple, and all parts homoenergetic are prefabricated in advance, and the intention is novel, the principle is reliable, has great market spreading value.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a full-slewing drilling machine full-casing piping prevention device provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a guard casing and a cutting bit provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the casing, the cutting bit and the water-permeable soil-separating layer according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, a preferred structure of a full-slewing drilling machine full-casing piping prevention device provided by an embodiment of the invention is shown. As shown, the apparatus comprises: the device comprises a protective cylinder 1, a permeable soil isolation layer 2, a protective layer 3 and a cutting tool bit 4; wherein the content of the first and second substances,
the intermediate position of protecting section of thick bamboo 1 is equipped with a plurality of and protects section of thick bamboo hole 11 of permeating water along the circumference of protecting section of thick bamboo 1 to make the groundwater of protecting section of thick bamboo 1 periphery flow in to protecting section of thick bamboo 1 from protecting section of thick bamboo hole 11 of permeating water, and then avoided groundwater to get into from the bottom of protecting section of thick bamboo 1 and led to the piping phenomenon that leads to in the section of thick bamboo 1 is protected to the sand granule flow direction. Specifically, the casing water-permeable holes 11 can be arranged in the height range before and after soil taking in the casing 1, so that when the grab bucket takes soil in the casing 1, groundwater around the casing 1 flows into the casing 1 from the casing water-permeable holes 11; to facilitate the flow of groundwater, it is preferable that the casing water-permeable holes 21 be provided in a plurality of sets and spaced in the axial direction (vertical direction as shown in fig. 2) of the casing 1; further preferably, the water permeable holes 21 of each group of protection cylinders are arranged in a ring shape, and the water permeable holes 21 of each protection cylinder are uniformly arranged, as shown in fig. 2, a plurality of circles of water permeable holes 21 of the protection cylinder are uniformly arranged along the peripheral wall of the protection cylinder 1 at the middle position of the protection cylinder 1; of course, other arrangements are possible, and this embodiment is not limited thereto.
The periphery of the pile casing 1 is provided with a permeable soil isolation layer 2 at the position of the pile casing permeable hole 11 for preventing sandy soil particles from entering the pile casing 1. Specifically, it can be for network structure promptly to permeate water and separate soil net to permeate water to separate soil layer 2, and its can cladding is equipped with the periphery of the position of protecting a section of thick bamboo permeable hole 11 at protecting a section of thick bamboo 1, forms to permeate water and separate soil system to ensure that the water around protecting a section of thick bamboo can see through to permeate water and separate soil net, simultaneously, block in soil particles gets into protecting a section of thick bamboo 1, and then avoids sand particles to run off the phenomenon of quicksand promptly.
The periphery of the permeable soil isolation layer 2 is provided with a protective layer 3 for protecting the permeable soil isolation layer 2 so as to prevent the permeable soil isolation layer 2 from being damaged by soil layer friction. Specifically, the protective layer 3 may be a metal pipe sleeved on the periphery of the water-permeable soil-separating layer 2, or may be a tubular structure made of other materials, which is not limited in this embodiment; the protective layer 3 can be fixed on the permeable soil-separating layer 2 by welding or other connection modes, and the permeable soil-separating layer 2 can be clamped and fixed between the metal pipe 3 and the pile casing 1, so that the permeable soil-separating layer 2 can be protected, and the permeable soil-separating layer 2 can be fixed; the welding thickness of the protective layer 3 is the same as that of the protective layer 3, so that the phenomenon of stress concentration at the welding seam is avoided; the metal pipe is an iron sheet pipe, namely, an iron sheet is wrapped around the periphery of the water-permeable soil-separating layer 2. In order to prevent the protective layer 3 from blocking the groundwater from flowing into the casing 1, preferably, the protective layer 3 is provided with a plurality of protective water-permeable holes 31 arranged at intervals along the circumferential direction thereof, so that the groundwater at the periphery of the casing 1 sequentially flows through the protective layer 3, the water-permeable soil-separating layer 2 and the casing 1 to flow into the casing 1. The water permeable holes 31 may be arranged in a plurality of circles or in other manners, which is not limited in this embodiment. Preferably, the diameter of the protection water-permeable holes 31 may be slightly smaller than the diameter of the casing water-permeable holes 11, and the distribution density of the protection water-permeable holes 31 may be greater than the distribution density of the casing water-permeable holes 11, so as to further improve the smoothness of the water outside the casing 1 entering the casing 1 through the protective layer 3 and the water-permeable soil-barrier layer 2.
The bottom end of the casing 1 (relative to the position shown in figure 1) is provided with a cutting bit 4 for cutting earth formations to cut earth during construction of the all-round rotary drill. Specifically, the cutting bit 4 may be an alloy bit, which may be plural and disposed at intervals along the circumferential direction of the casing 1 at the bottom end of the casing 1. The cutting bit 4 and the casing 1 may be fixedly connected by welding or may be fixed by other methods, which is not limited in this embodiment.
The manufacturing method of the full-protective-cylinder piping prevention device of the full-slewing drilling machine comprises the following steps:
firstly, manufacturing a casing 1 and a cutting tool bit 4, and welding the cutting tool bit 4 at the bottom of the casing 1 in an annular manner, so that a soil body can be conveniently cut during construction of the full-circle rotary drilling machine, and a plurality of circles of casing water permeable holes 11 which are uniformly distributed are drilled in an annular direction along the wall of the casing 1 in a height range before and after soil is taken by the casing 1; then, a water-permeable soil-separating layer 2, namely a water-permeable soil-separating net, is arranged along the circumferential direction of the water-permeable holes 11 of the pile casing, the water-permeable soil-separating net is tensioned in the circumferential direction, the joint is tightly sewn, so that water around the pile casing 1 can conveniently permeate the water-permeable soil-separating net, and soil particles are prevented from entering the pile casing; and finally, arranging a protective iron sheet around the permeable soil separation net in a circumferential direction to serve as a protective layer 3, protecting the permeable soil separation net from being damaged by soil layer friction during construction of the full-circle rotary drilling machine, welding at the circumferential joint of the protective iron sheet, simultaneously cleaning redundant welding slag to ensure that the thickness of the welding part is the same as that of the iron sheet, preventing the phenomenon of stress concentration at the welding seam, drilling iron sheet holes on the protective iron sheet to serve as protective permeable holes 31, wherein the iron sheet holes are slightly smaller than the permeable holes of the protective cylinder, the distribution of the iron sheet holes is denser than that of the permeable holes of the protective cylinder, and water outside the protective cylinder conveniently enters the protective cylinder through the iron sheet holes and the permeable soil separation net.
In conclusion, the piping prevention device for the full casing of the full slewing drilling machine, provided by the embodiment, has the advantages that the casing water-permeable holes 11 arranged on the casing 1 enable groundwater around the casing 1 to enter the casing 1 from the casing water-permeable holes 11, so that a piping phenomenon caused by sand particles flowing into the casing 1 due to the fact that the groundwater enters the casing 1 from the bottom of the casing 1 is avoided; a water-permeable soil-separating system is formed by arranging the water-permeable soil-separating layer 2 on the periphery of the water-permeable hole 11 of the pile casing, so that underground water enters the pile casing from the water-permeable soil-separating system in the soil taking process, the phenomena of piping and sand flowing caused by the fact that the underground water enters the pile casing from the bottom of the pile casing are avoided, the purpose that water around the pile casing 1 enters the pile casing 1 along the water-permeable hole 11 of the pile casing and sand particles are prevented from entering the pile casing 1 is achieved, and the purpose that the sand particles are lost is achieved; the protective layer arranged on the periphery of the water-permeable soil-separating layer 2 achieves the purpose of protecting the water-permeable soil-separating layer 2 from being damaged. The device installation is simple, and all parts homoenergetic are prefabricated in advance, and the intention is novel, the principle is reliable, has great market spreading value.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a full rotary drilling machine protects a section of thick bamboo entirely and prevents piping device which characterized in that includes: protecting the cylinder; wherein the content of the first and second substances,
a plurality of protective cylinder water permeable holes are formed in the middle of the protective cylinder along the circumferential direction of the protective cylinder, so that underground water on the periphery of the protective cylinder flows into the protective cylinder from the protective cylinder water permeable holes;
and a permeable soil isolation layer is arranged at the position of the periphery of the pile casing, which is provided with permeable holes of the pile casing, and is used for preventing sandy soil particles from entering the pile casing.
2. The full-slewing drilling machine full casing piping prevention device according to claim 1,
the water permeable holes of the protective cylinder are multiple groups and are arranged along the axial direction of the protective cylinder at intervals.
3. The full-barrel-protecting piping-preventing device for the full-slewing drilling machine as claimed in claim 2, wherein the water-permeable holes of the barrels of each group are arranged in a ring shape and are uniformly distributed.
4. The full-slewing drilling machine full casing piping prevention device according to any one of claims 1 to 3,
the periphery of the water-permeable soil-separating layer is provided with a protective layer for protecting the water-permeable soil-separating layer.
5. The full-slewing drilling machine full casing anti-piping device according to claim 4,
the protective permeable holes are formed in the protective layer along the circumferential direction of the protective permeable holes, and a plurality of protective permeable holes are formed in the protective layer at intervals, so that underground water on the periphery of the protective tube sequentially flows through the protective layer, the permeable soil isolation layer and the protective tube.
6. The full-slewing drilling machine full casing piping prevention device according to claim 5, wherein the protective layer is a metal pipe sleeved on the periphery of the water-permeable soil-isolation layer.
7. The full-slewing drilling machine full casing piping prevention device of claim 6, wherein the metal pipe is an iron sheet pipe.
8. The full-slewing drilling machine full casing anti-piping device according to any one of claims 1 to 3, wherein the water-permeable soil-barrier layer is of a net structure.
9. The full-slewing drilling machine full casing piping prevention device according to claim 8,
and a cutting tool bit is arranged at the bottom end of the casing and used for cutting the soil layer.
10. The full-slewing drilling machine full casing piping prevention device according to any one of claims 1 to 3,
the cutting tool bit is a plurality of, and it is in the bottom of protecting the section of thick bamboo along the circumference interval setting of protecting the section of thick bamboo.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295500.4A CN112681982B (en) | 2020-11-18 | 2020-11-18 | Piping prevention device for full casing of full rotary drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295500.4A CN112681982B (en) | 2020-11-18 | 2020-11-18 | Piping prevention device for full casing of full rotary drilling machine |
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| CN112681982A true CN112681982A (en) | 2021-04-20 |
| CN112681982B CN112681982B (en) | 2023-05-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563542A (en) * | 2022-02-28 | 2022-05-31 | 中国林业科学研究院生态保护与修复研究所 | Underground water monitoring device and method |
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| US5595252A (en) * | 1994-07-28 | 1997-01-21 | Flowdril Corporation | Fixed-cutter drill bit assembly and method |
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| CN102644274A (en) * | 2012-04-17 | 2012-08-22 | 中铁隧道集团三处有限公司 | Pile-forming construction method for penetrating through existing structure by fender post |
| CN207567840U (en) * | 2017-10-17 | 2018-07-03 | 上海宝冶集团有限公司 | The anti-underground casing waterborne gushed in basement bored pile construction |
| CN110018020A (en) * | 2019-04-11 | 2019-07-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of drilling underground water device for fetching water |
| CN211435283U (en) * | 2019-10-29 | 2020-09-08 | 洛阳圣鑫重工科技有限公司 | Special balanced water pressure formula filter pressing device surges |
| CN211713956U (en) * | 2019-11-26 | 2020-10-20 | 浙江大学城市学院 | Underwater cast-in-situ bored pile steel casing mounting device |
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2020
- 2020-11-18 CN CN202011295500.4A patent/CN112681982B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595252A (en) * | 1994-07-28 | 1997-01-21 | Flowdril Corporation | Fixed-cutter drill bit assembly and method |
| CN201713812U (en) * | 2010-06-03 | 2011-01-19 | 中国建筑第七工程局有限公司 | Underwater drilling pile foundation protective cylinder |
| CN102644274A (en) * | 2012-04-17 | 2012-08-22 | 中铁隧道集团三处有限公司 | Pile-forming construction method for penetrating through existing structure by fender post |
| CN207567840U (en) * | 2017-10-17 | 2018-07-03 | 上海宝冶集团有限公司 | The anti-underground casing waterborne gushed in basement bored pile construction |
| CN110018020A (en) * | 2019-04-11 | 2019-07-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of drilling underground water device for fetching water |
| CN211435283U (en) * | 2019-10-29 | 2020-09-08 | 洛阳圣鑫重工科技有限公司 | Special balanced water pressure formula filter pressing device surges |
| CN211713956U (en) * | 2019-11-26 | 2020-10-20 | 浙江大学城市学院 | Underwater cast-in-situ bored pile steel casing mounting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563542A (en) * | 2022-02-28 | 2022-05-31 | 中国林业科学研究院生态保护与修复研究所 | Underground water monitoring device and method |
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| CN112681982B (en) | 2023-05-16 |
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