CN214401758U - Novel bored pile protects a section of thick bamboo - Google Patents
Novel bored pile protects a section of thick bamboo Download PDFInfo
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- CN214401758U CN214401758U CN202120473373.6U CN202120473373U CN214401758U CN 214401758 U CN214401758 U CN 214401758U CN 202120473373 U CN202120473373 U CN 202120473373U CN 214401758 U CN214401758 U CN 214401758U
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Abstract
The application relates to the technical field of inorganic type rostone equipment, and discloses a novel bored pile protects a section of thick bamboo and includes urceolus and coaxial fixation inner tube in the urceolus, is fixed with many between urceolus and the inner tube and connects both and length direction and the unanimous splice bar of urceolus length direction. The inner cylinder and the outer cylinder which are coaxially fixed are arranged to form a main body of the pile casing, a drilling machine works in the inner cylinder, and the outer cylinder plays a role in weakening the thermal disturbance generated by the drilling machine in the inner cylinder and transferring the thermal disturbance into the frozen soil; after the pile casing is buried and buried, slurry is poured between the outer cylinder and the inner cylinder, so that air between the outer cylinder and the inner cylinder is exhausted, the overall strength of the pile casing is increased, the effect of blocking heat transfer is achieved, and the phenomenon of hole collapse caused by loose frozen soil is further prevented.
Description
Technical Field
The application relates to pile foundation construction equipment technical field, especially relates to a novel bored pile protects a section of thick bamboo.
Background
The pile casing is used for cast-in-situ bored pile construction, is generally made of steel and has a cylindrical integral structure. In the construction process of the cast-in-situ bored pile, the steel casing is often buried to position the pile position of the drill, and the auxiliary guiding function for the drilling direction of the drilling machine is mainly realized, so that the radial direction of the drill hole is kept to be vertical to the ground. In addition, the protective cylinder also plays a role in protecting the hole opening, and stones on the ground are prevented from falling into the hole; in addition, the protective cylinder also has the purpose of maintaining the water level pressure of the slurry in the cylinder, so that the condition of collapse holes is reduced.
Particularly, when the drilling machine is constructed in a frozen soil region, a drill bit of the drilling machine can generate thermal disturbance due to rotation and soil impact in a single-layer pile casing when the drilling machine is constructed in the frozen soil region, heat is easily transferred to the periphery of the pile casing, underground ice in the frozen soil is melted, so that the hole collapse phenomenon easily occurs, the hole forming rate of a drilled pile is difficult to guarantee, the time period of pile driving construction in the frozen soil region is long, and the construction quality is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the regional pile construction bored concrete pile's of frozen soil pore-forming rate low, thermal disturbance makes frozen soil lax in drilling process, leads to the frequent problem of hole collapse phenomenon, this application provides a novel bored concrete pile protects a section of thick bamboo for solve above-mentioned problem.
The application provides a pair of novel bored pile protects a section of thick bamboo and adopts following technical scheme:
the utility model provides a novel bored pile protects a section of thick bamboo, includes urceolus and coaxial the fixing inner tube in the urceolus, the urceolus with be fixed with many between the inner tube connect two and length direction with the unanimous splice bar of urceolus length direction.
By adopting the technical scheme, the inner cylinder and the outer cylinder which are coaxially fixed are arranged, the drilling machine works in the inner cylinder, and the outer cylinder plays a role in weakening the thermal disturbance generated by the drilling machine in the inner cylinder and transferring the thermal disturbance into frozen soil; after the pile casing is buried and buried, slurry is poured between the outer cylinder and the inner cylinder, so that air between the outer cylinder and the inner cylinder is exhausted, the overall strength of the pile casing is increased, the effect of blocking heat transfer is achieved, and the phenomenon of hole collapse caused by loose frozen soil is further prevented.
Preferably, a flange is coaxially fixed at the upper end of the outer cylinder and the outer cylinder, and the radius of the flange is larger than that of the outer cylinder.
By adopting the technical scheme, the flange which is fixed at the upper end of the outer barrel and has the radius larger than that of the outer barrel is arranged, so that the soil around the protective barrel is prevented from falling into the protective barrel when the protective barrel is buried and the drilling machine works.
Preferably, a plurality of supporting parts are evenly fixed at the lower end of the outer cylinder along the circumferential direction of the outer cylinder, and the surface of the supporting parts, which is far away from the upper end of the outer cylinder, is on the same plane with the lower surface of the outer cylinder.
Through adopting above-mentioned technical scheme, the supporting part is used for increasing the area of contact of protecting a lower extreme and ground, plays the effect of auxiliary stay, makes to protect a difficult emergence slope of section of thick bamboo, and is more stable.
Preferably, the surface of the support portion remote from the outer cylinder is inclined with respect to the axis of the outer cylinder, and the lower end of the support portion is located farther from the center of the outer cylinder than the upper end thereof.
By adopting the technical scheme, the inclined plane of the supporting part far away from the outer cylinder is obliquely arranged, on one hand, compared with a plate with a rectangular section, the contact area between the side wall of the supporting part and the surrounding soil is reduced, so that unnecessary friction between the embedded position of the pile casing and the surrounding soil is reduced, and excessive friction resistance is prevented from being applied when the position of the pile casing is adjusted; meanwhile, the material for producing the supporting part is less than that of a rectangular plate, and resources are saved.
Preferably, a penetrating part abutting against the ground is fixed at the lower end of the supporting part, the cross section of the penetrating part is triangular, and the vertex of the penetrating part faces the ground.
Through adopting above-mentioned technical scheme, when burying underground and protecting a section of thick bamboo, because the geological feature of frozen soil, the soil horizon is harder, when using pile driver will protect a section of thick bamboo and squeeze into the pile position, the portion of penetrating through can assist protects a section of thick bamboo and penetrates in the soil.
Preferably, the cross section of the penetrating part is an obtuse triangle, and the vertex of the obtuse angle of the penetrating part is abutted against the ground.
By adopting the technical scheme, because the vertex stress concentration of the penetrating part penetrating through the soil is larger, compared with the acute-angle triangle vertex, the obtuse-angle triangle vertex design can reduce the stress concentration, so that the probability of damage of the penetrating part is reduced, and the service life of the penetrating part is prolonged.
Preferably, a spiral stirrup is fixed on the surface of the inner cylinder facing the outer cylinder.
By adopting the technical scheme, on one hand, the spiral stirrup plays a role in reinforcing the wall of the inner cylinder; on the other hand, the spiral stirrup strengthens the slurry solidified between the inner cylinder and the outer cylinder by similar reinforced concrete matching principle.
Preferably, a plurality of reinforcing ribs with the length direction consistent with the length direction of the outer cylinder are evenly fixed on the outer wall of the outer cylinder along the circumferential direction of the outer cylinder.
Through adopting above-mentioned technical scheme, many strengthening ribs play the effect of strengthening to the stack shell of urceolus, have improved the intensity of urceolus, prevent that the urceolus from leading to its easy fracture because of length, have increased the life of protecting a section of thick bamboo promptly.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the inner cylinder and the outer cylinder which are coaxially fixed are arranged to form a main body of the protective cylinder, a drilling machine works in the inner cylinder, and the outer cylinder plays a role in weakening the thermal disturbance generated in the inner cylinder by the drilling machine and transferring the thermal disturbance into frozen soil; after the pile casing is buried, slurry is poured between the outer cylinder and the inner cylinder, so that air between the outer cylinder and the inner cylinder is exhausted, the integral strength of the pile casing is increased, a heat transfer blocking effect is achieved, and the phenomenon of hole collapse caused by loose frozen soil is further prevented;
2. the supporting part and the penetrating part are arranged along the circumferential direction of the pile casing, and the supporting part is used for increasing the contact area of the lower end of the pile casing and the ground, so that the effect of auxiliary support is achieved, the pile casing is not easy to incline, and the pile casing is more stable; the penetrating part is used for assisting the pile casing to penetrate into soil, when the pile casing is buried, due to the geological characteristics of frozen soil, a soil layer is relatively hard, and when the pile driver is used for driving the pile casing into a pile position, the penetrating part is used for breaking the soil;
3. the spiral stirrup is fixed on the surface of the inner barrel facing the outer barrel, and on one hand, the spiral stirrup plays a role in reinforcing the barrel wall of the inner barrel; on the other hand, the spiral stirrup strengthens the slurry solidified between the inner cylinder and the outer cylinder by similar reinforced concrete matching principle.
Drawings
Fig. 1 is an overall schematic view of a novel bored pile casing according to an embodiment of the present application.
Fig. 2 is a half-sectional view of a novel bored pile casing according to an embodiment of the present application.
Description of reference numerals: 11. an outer cylinder; 12. an inner barrel; 2. connecting ribs; 3. a support portion; 4. a penetration portion; 5. reinforcing ribs; 6. a spiral stirrup; 7. a flange.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a novel bored pile protects a section of thick bamboo. Referring to fig. 1, the novel bored pile casing includes an outer cylinder 11, an inner cylinder 12, a support portion 3, and a penetration portion 4. The outer barrel 11 and the inner barrel 12 are cylindrical, the outer barrel 11 is coaxially sleeved on the inner barrel 12, a plurality of connecting ribs 2 for connecting the outer barrel 11 and the inner barrel 12 are fixed between the outer barrel 11 and the inner barrel 12, the connecting ribs 2 are cuboids, the length direction of the connecting ribs 2 is consistent with that of the outer barrel 11, the plurality of connecting ribs 2 are evenly distributed along the circumferential direction of the inner barrel 12, and the length of the connecting ribs 2 is equal to that of the inner barrel 12.
The inner cylinder 12 and the outer cylinder 11 which are coaxially fixed are arranged, a drilling machine works in the inner cylinder 12, and the outer cylinder 11 plays a role in weakening the thermal disturbance generated in the inner cylinder 12 by the drilling machine and transferring the thermal disturbance into frozen soil; after the pile casing is buried, slurry is poured between the outer cylinder 11 and the inner cylinder 12, so that air between the outer cylinder 11 and the inner cylinder 12 is exhausted, the overall strength of the pile casing is improved, a heat transfer blocking effect is achieved, and the phenomenon of hole collapse caused by loose frozen soil is further prevented.
Referring to fig. 2, a spiral stirrup 6 is welded and fixed to the surface of the inner cylinder 12 facing the outer cylinder 11, and the spiral stirrup 6 is arranged coaxially with the inner cylinder 12. On one hand, the spiral stirrup 6 plays a role in reinforcing the wall of the inner barrel 12; on the other hand, the spiral stirrup 6 plays a reinforcing role similar to the reinforced concrete matching principle on the slurry solidified between the inner barrel 12 and the outer barrel 11, so that the integral structure integrity of the pile casing is better, the strength is higher, and the pile casing has a better using effect.
Referring to fig. 1, a flange 7 is fixedly sleeved on one end of an outer cylinder 11, the flange 7 is a cylindrical ring structure, and one end face of the flange 7 in the length direction is on the same plane with the end face of the outer cylinder 11. The flange 7 which is fixed on the upper end of the outer cylinder 11 and has the radius larger than that of the outer cylinder 11 is arranged, so that the soil around the protective cylinder is prevented from falling into the protective cylinder when the protective cylinder is buried and the drilling machine works, and the working of the drilling machine is prevented from being influenced.
Referring to fig. 1, a plurality of supporting portions 3 are fixed at one end of the outer cylinder 11 far away from the flange 7, the supporting portions 3 are right-angled triangular steel plates, one right-angled side of each supporting portion 3 is welded and fixed on the outer cylinder 11, the plane where the other right-angled side is located and the end face of the outer cylinder 11 are located on the same plane, and the supporting portions 3 are evenly distributed along the circumferential direction of the outer cylinder 11.
The supporting part 3 is used for increasing the contact area between the lower end of the pile casing and the ground, plays a role of auxiliary support, and enables the pile casing to be not prone to tilting and to be more stable. The supporting part 3 is made of a triangular steel plate, so that on one hand, compared with a plate with a rectangular cross section, the contact area between the side wall of the supporting part 3 and the surrounding soil is reduced, and therefore unnecessary friction between the pile casing and the surrounding soil at the embedding position is reduced, and excessive friction resistance is avoided when the pile casing position is adjusted; meanwhile, the material for producing the supporting part 3 is less than that for producing a rectangular plate, and resources are saved.
Referring to fig. 1, a penetrating part 4 is fixed at the lower end of each support part 3, the cross section of the penetrating part 4 is an obtuse triangle, the side opposite to the obtuse angle is fixed on the right-angle side of the support part 3, and the lengths of the two fixed sides are equal, namely the obtuse angle of the penetrating part 4 faces to the direction away from the flange 7. When the pile casing is buried, the soil layer is hard due to the geological characteristics of frozen soil, and the penetrating part 4 can assist the pile casing to penetrate into the soil when the pile driver is used for driving the pile casing into a pile position; because the vertex stress concentration of the penetrating part 4 penetrating through the soil is larger, compared with the vertex of the triangle with an acute angle, the design of the vertex of the triangle with an obtuse angle can reduce the stress concentration, so that the probability of damaging the penetrating part 4 is reduced, namely the service life of the penetrating part 4 is prolonged.
Referring to fig. 1, a plurality of reinforcing ribs 5 are fixed on an outer cylinder 11, the reinforcing ribs 5 are uniformly distributed along the circumferential direction of the outer cylinder 11, the length direction of each reinforcing rib 5 is consistent with the length direction of the outer cylinder 11, each reinforcing rib 5 is positioned between two adjacent supporting parts 3, and the length of each reinforcing rib 5 is equal to the length of the outer cylinder 11. The reinforcing ribs 5 play a role in reinforcing the barrel body of the outer barrel 11, so that the strength of the outer barrel 11 is improved, the outer barrel 11 is prevented from being easily broken due to the length, and the service life of the protective barrel is prolonged.
The application principle of a novel bored pile casing of the embodiment of this application is: a constructor digs out soil around a pile position and then vertically puts a pile casing into the dug pit; the pile driver is then used to drive the casing into the ground, during which the penetration 4 reduces the resistance of the casing into the ground; next, adjusting the position of the pile casing to calibrate, so that the length direction of the pile casing is perpendicular to the ground, and at this time, the support part 3 plays a good role in supporting and contributes to the stability of the pile casing; then, burying the pile casing, filling soil to the lower end of the flange 7, and stably burying the pile casing in the ground; and finally, pouring slurry between the inner cylinder 12 and the outer cylinder 11, and after the slurry is solidified, performing operation in the inner cylinder 12 by using a drilling machine.
The utility model provides a novel bored pile protects a section of thick bamboo has solved because the regional drilling in-process of frozen soil thermal disturbance makes frozen soil relax, leads to the hole phenomenon of collapsing to frequent out, has the time cycle of pile construction promptly long, the not good enough problem of construction quality.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a novel bored pile protects a section of thick bamboo which characterized in that: the connecting device comprises an outer barrel (11) and an inner barrel (12) coaxially fixed in the outer barrel (11), wherein a plurality of connecting ribs (2) which are used for connecting the outer barrel (11) and the inner barrel (12) in a consistent length direction are fixed between the outer barrel (11) and the inner barrel (12).
2. The novel bored pile casing according to claim 1, wherein: the upper end of the outer barrel (11) and the outer barrel (11) are coaxially fixed with a flange (7), and the radius of the flange (7) is larger than that of the outer barrel (11).
3. The novel bored pile casing according to claim 1, wherein: the lower end of the outer barrel (11) is evenly fixed with a plurality of supporting parts (3) along the circumferential direction of the outer barrel, and the surface of the supporting parts (3) far away from the upper end of the outer barrel (11) and the lower surface of the outer barrel (11) are on the same plane.
4. A novel bored pile casing according to claim 3, wherein: the surface of the support part (3) far away from the outer cylinder (11) is inclined relative to the axis of the outer cylinder (11), and the lower end of the support part (3) is farther away from the center of the outer cylinder (11) than the upper end thereof.
5. A novel bored pile casing according to claim 3, wherein: the lower end of the supporting part (3) is fixed with a penetrating part (4) which is abutted against the ground, the cross section of the penetrating part (4) is triangular, and the vertex of the penetrating part faces the ground.
6. The novel bored pile casing according to claim 5, wherein: the section of the penetrating part (4) is an obtuse triangle, and the vertex of the obtuse angle of the penetrating part is abutted against the ground.
7. The novel bored pile casing according to claim 1, wherein: a spiral stirrup (6) is fixed on the surface of the inner cylinder (12) facing the outer cylinder (11).
8. The novel bored pile casing according to claim 1, wherein: and a plurality of reinforcing ribs (5) with the length direction consistent with that of the outer barrel (11) are evenly fixed on the outer wall of the outer barrel (11) along the circumferential direction of the outer barrel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473373.6U CN214401758U (en) | 2021-03-04 | 2021-03-04 | Novel bored pile protects a section of thick bamboo |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120473373.6U CN214401758U (en) | 2021-03-04 | 2021-03-04 | Novel bored pile protects a section of thick bamboo |
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| Publication Number | Publication Date |
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| CN214401758U true CN214401758U (en) | 2021-10-15 |
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| CN202120473373.6U Active CN214401758U (en) | 2021-03-04 | 2021-03-04 | Novel bored pile protects a section of thick bamboo |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703865A (en) * | 2022-04-18 | 2022-07-05 | 中交第二公路工程局有限公司 | Coastal high organic matter soft soil foundation supporting device for DSM cement mixing pile treatment |
| CN115182342A (en) * | 2022-09-13 | 2022-10-14 | 山东鲁中公路建设有限公司 | Pile foundation construction process and device applied to unfavorable geology |
-
2021
- 2021-03-04 CN CN202120473373.6U patent/CN214401758U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703865A (en) * | 2022-04-18 | 2022-07-05 | 中交第二公路工程局有限公司 | Coastal high organic matter soft soil foundation supporting device for DSM cement mixing pile treatment |
| CN114703865B (en) * | 2022-04-18 | 2023-04-14 | 中交第二公路工程局有限公司 | Coastal high-organic-matter soft soil foundation supporting device for DSM (design system) cement mixing pile treatment |
| CN115182342A (en) * | 2022-09-13 | 2022-10-14 | 山东鲁中公路建设有限公司 | Pile foundation construction process and device applied to unfavorable geology |
| CN115182342B (en) * | 2022-09-13 | 2022-11-29 | 山东鲁中公路建设有限公司 | Pile foundation construction process and device applied to unfavorable geology |
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