CN209958360U - Pile-surrounding high-pressure water-gas jet lubrication pile pulling sleeve - Google Patents
Pile-surrounding high-pressure water-gas jet lubrication pile pulling sleeve Download PDFInfo
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- CN209958360U CN209958360U CN201920205888.0U CN201920205888U CN209958360U CN 209958360 U CN209958360 U CN 209958360U CN 201920205888 U CN201920205888 U CN 201920205888U CN 209958360 U CN209958360 U CN 209958360U
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Abstract
The utility model relates to a lubricated pile pulling sleeve pipe of stake week high pressure water gas jet, including bushing structure, high pressure water gas jet system, mud circulation system, hydraulic jack clamping structure etc, bushing structure is by the outer tube, interior sleeve pipe, sleeve pipe floor and rotary drill constitute, including, lay high pressure aqueous vapor pipeline and mud circulation pipeline etc. between the outer tube, set up electric drive rotary drill bottom the sleeve pipe, along 4 centre gripping arms of circumference symmetrical arrangement, and arrange a set ofly at vertical direction 3 ~ 5m, the centre gripping arm is pressed from both sides tightly by hydraulic jack drive and is treated the pile pulling, utilize lifting equipment to extract the synchronous slow pile week aqueous vapor jet lubrication sleeve pipe of stake week and treat the pile pulling.
Description
Technical Field
The utility model relates to a geotechnical engineering pile pulling technical field, it is splendid to effect in prefabricated square pile, tubular pile, the reinforced concrete bored concrete pile etc. in soil layers such as manual filling soil, cohesive soil, silt, sand, especially relates to a lubricated pile pulling sleeve pipe of pile week high pressure water gas jet.
Background
In old city reconstruction projects such as municipal construction, underground rail transit, basement construction and the like in old cities, the original underground foundation pile forms a great obstacle to the development and construction of a pile foundation or an underground space of a newly-built project and needs to be pulled out of the old pile, the traditional direct pile pulling method mainly overcomes the resistance around the pile and the gravity of the pile by means of the power of a pulling machine to pull out the pile, and the traditional direct pile pulling method has the defects that the pile top is stressed too much, the pile body is easy to be pulled out or broken, and the construction efficiency in the whole process is seriously affected.
Aiming at the problems of the traditional pile pulling, a construction method which is capable of continuously pulling piles, has small resistance around piles and can adapt to pile foundations to be pulled at different depths is needed to be developed. The utility model discloses it just develops under such background and forms, is applied to and produces better economic and social benefit in the actual construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the traditional pile pulling pile body is easy to break, the friction force between the pile body and the peripheral soil body is too large in the pile pulling process, the construction wastes time and energy, the cost is higher and the like, and the pile periphery high-pressure water gas jet lubrication pile pulling sleeve is provided.
In order to achieve the purpose, the utility model provides a following technical scheme.
The pile-surrounding high-pressure water gas injection lubrication pile pulling sleeve is characterized by comprising a sleeve structure, a high-pressure water gas injection system, a slurry circulating system, a hydraulic jack clamping structure and the like; the sleeve structure consists of an outer sleeve, an inner sleeve, a sleeve rib plate and a rotary drill bit, wherein the outer sleeve and the inner sleeve are connected through the sleeve rib plate to form an integral structure; the high-pressure water gas injection system comprises a high-pressure water main pipe, a high-pressure water branch pipe, a high-pressure gas main pipe, a high-pressure gas branch pipe, pressurizing and gas-filling equipment, a pipeline fixing piece and the like, wherein the high-pressure water main pipe is positioned in the high-pressure gas main pipe, and the high-pressure water main pipe and the high-pressure gas main pipe are at least arranged in 4 pairs along the circumference; the mud circulating system comprises mud circulating equipment, mud circulating branch pipes, a mud circulating main pipe and the like; the hydraulic jack clamping structure comprises a fixed bottom plate, a fixed support, a hydraulic jack, a clamping arm, an oil supply pipe, oil supply equipment, an isolating membrane and the like.
Preferably, the high-pressure water main pipe and the high-pressure gas main pipe are coaxial circular pipes, the high-pressure water main pipe is located in the high-pressure gas main pipe, and the high-pressure water main pipe and the high-pressure gas main pipe are at least arranged in 4 pairs along the circumference.
Preferably, the rotary drill bit is positioned at the bottom of the pile periphery high-pressure water gas jet lubrication sleeve, the driver drives the rotary drill bit to cut soil, and the corresponding cable is arranged in the outer layer of the sleeve and a cavity between the outer layers of the sleeve.
Preferably, 4 clamping arms are symmetrically arranged along the circumference, a group of clamping arms is arranged at 3 ~ 5m in the vertical direction, the clamping arms are driven by a hydraulic jack to clamp a pile to be pulled, a preformed hole is formed in the corresponding position of the inner layer of the sleeve, a base of the hydraulic jack is located on a fixed base and a fixed support which are welded on the outer layer of the sleeve and can freely stretch out and draw back in the preformed hole, a reinforcing ring is arranged on the inner wall of the preformed hole, and an isolation film is arranged between the hydraulic jack and the inner wall of the inner layer of the sleeve.
Preferably, the high-pressure water main pipe, the high-pressure gas main pipe and the slurry circulation main pipe are connected between the upper section and the lower section by adopting connecting hoses, the convex block of the movable nut is embedded into the concave groove of the fixing ring, and the connecting hoses are connected with the corresponding pipeline interfaces by screwing the movable nut and the fixing ring on the connecting hoses.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the high-pressure water, the air pipe and the mud inverted suction pipe are arranged in the high-pressure injection pile end and the high-pressure injection pile body, so that the high-pressure water, the air pipe and the mud inverted suction pipe can be effectively prevented from being damaged and blocked in the piling process;
(2) when the pile is pulled out, the miniature oil jack clamps the old pile, the pile is pulled out at the position of the sleeve around the pile and the pile head to be pulled out in a combined manner, the concentrated pulling of the pile head is changed into the pulling of multiple positions of the whole pile, the stress of the pile body is reduced, and the phenomenon of pile body pulling-out is effectively reduced;
(3) continuously injecting compressed air and water in the sinking process of the sleeve around the pile to change soil bodies in the range of 30-50mm inside and outside the sleeve around the pile into pasty slurry to form an annular thin-wall slurry isolation layer, so that the side friction resistance of the sleeve or a pile body in the sinking or pile pulling process of the sleeve is greatly reduced;
(4) the mud is sucked back in the process of sinking the sleeve around the pile, the mud on the inner side and the outer side of the sleeve around the pile is sucked out, and the side friction resistance of the sleeve or the pile body in the process of sinking the sleeve or pulling the pile is greatly reduced;
(5) and the isolating cloth is adopted for wrapping, so that the slurry is prevented from flowing back into the sleeve in the sinking process, and the sleeve is ensured not to be influenced by the slurry.
Drawings
FIG. 1 is a pile-pulling structure of a high-pressure water-gas jet lubrication sleeve around a pile (1/2 circle schematic view);
FIG. 2 is a hydraulic jack pile gripping structure (section A-A in FIG. 1);
FIG. 3 is a view of the circumferential arrangement of the hydraulic jack pile clamping structure (section E-E in FIG. 2, without including high pressure water, gas main, etc.);
FIG. 4 is a high pressure water gas main branch pipe (sectional view B-B in FIG. 1);
FIG. 5 is a view showing the arrangement of the main pipe for high pressure water gas and the main pipe for mud circulation along the circumference (D-D section view in FIG. 4);
FIG. 6 is a main mud circulation leg (section C-C in FIG. 1);
FIG. 7 is a bottom structure of a pile periphery high-pressure water-gas jet lubrication sleeve;
FIG. 8 is a middle section structure of a pile periphery high-pressure water gas jet lubricating sleeve;
FIG. 9 is a schematic cross-sectional view of a pile surrounding high pressure water gas jet lubrication sleeve without installed piping and pile clamping equipment;
FIG. 10 is a high pressure water gas main pipe connection (node 1-1 of FIG. 4);
FIG. 11 is a high pressure water vapor outlet configuration (node 2-2 in FIG. 4);
FIG. 12 is a mud circulation main connection (node 3-3 in FIG. 6);
FIG. 13 is a mud circulation port configuration (node 4-4 in FIG. 6);
FIG. 14 is a three-dimensional view of a hydraulic jack clamp configuration;
FIG. 15 is (sectional view F-F in FIG. 14);
FIG. 16 is a schematic view of the construction of the connection hose;
FIG. 17 is a schematic view of a fixed joint construction;
FIG. 18 is a schematic view of a free joint configuration;
FIG. 19 is a schematic view showing a connection structure of the connection hose and the fixed joint;
FIG. 20 is a schematic view of an internal pipe connection;
fig. 21 is a schematic drawing of the high pressure water gas jet lubrication sleeve together with the pile body.
Description of the labeling: 1-peripile soil body, 201-outer sleeve, 202-inner sleeve, 203-rotary drill bit, 204-threaded fixing ring, 205-sleeve rib plate, 206-baffle ring, 207-connecting ring, 208-preformed hole, 301-high-pressure water main pipe, 302-high-pressure water branch pipe, 303-high-pressure gas main pipe, 304-high-pressure gas branch pipe, 305-high-pressure water outlet sleeve, 306-pressurizing gas filling equipment, 307-pipeline fixing piece, 401-filter opening, 402-mud circulating equipment, 403-mud circulating branch pipe, 404-mud circulating main pipe, 5-pile to be pulled, 601-fixing bottom plate, 602-fixing support, 603-hydraulic jack, 604-reinforcing ring, 605-clamping arm, 606-fixing bolt, 607-oil supply pipe, 608-protection pipe, 609-oil supply equipment, 610-sealing ring, 611-isolating membrane, 7-internal pipeline connecting structure, 701-connecting hose, 702-fixing ring, 703-movable nut, 8-lubricating layer, 9-hoisting equipment and 10-steel rope.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Example (b): the length of the pile to be pulled (5) is 10m, and the diameter is 0.6 m.
The invention relates to a pile surrounding casing high-pressure water-gas injection lubrication pile pulling construction method, which is combined with an attached drawing 1 ~ 6 and comprises a casing structure, a high-pressure water-gas injection system, a slurry circulation system, a hydraulic jack clamping structure and the like, wherein the casing structure comprises an outer casing (201), an inner casing (202), a casing rib plate (205) and a rotary drill bit (203), the outer casing (201) and the inner casing (202) are connected through the casing rib plate (205) to form an integral structure, the high-pressure water-gas injection system comprises a high-pressure water main pipe (301), a high-pressure water branch pipe (302), a high-pressure gas main pipe (303), a high-pressure gas branch pipe (304), a pressurization gas filling device (306), a pipeline fixing part (307) and the like, the high-pressure water main pipe (301) is positioned in the high-pressure gas main pipe (303), the high-pressure water main pipe (301) and the high-pressure gas main pipe (303) are at least arranged in 4 pairs along the circumference, the slurry circulation system comprises a slurry circulation device (402), a slurry circulation branch pipe (403), a slurry circulation main pipe (404), a slurry circulation device (601), a slurry circulation main pipe (603), a slurry circulation main pipe (404) and a slurry circulation main pipe (607), a high-pressure water-gas main pipe (203), a hydraulic jack clamping structure is arranged in a high-water-gas injection device, a high-pressure jack.
The inner sleeve (202) of the high-pressure water gas jet lubrication sleeve is a steel pipe with the inner diameter of 700mm and the thickness of 12mm, the outer sleeve (201) is a steel pipe with the inner diameter of 850mm and the thickness of 12mm, the rib plates (205) of the sleeve are steel ring plates with the wall thickness of 5mm and the interval of 50cm, the high-pressure water main pipe (301) is a DN32 steel pipe, the high-pressure water branch pipe (302) is a DN25 steel pipe, the high-pressure water main pipe (303) is a DN40 steel pipe, the high-pressure water branch pipe (304) is a DN32 steel pipe, the mud circulation main pipe (404) is a DN40 steel pipe, and the mud circulation.
Referring to fig. 7 and 11, the high pressure water branch pipe (302) connected to the high pressure water outlet sleeve (305) is externally threaded, and the high pressure water outlet sleeve (305) is internally threaded.
With reference to fig. 7 and 13, the external part of the slurry circulation branch pipe (403) connected with the filtering port (401) is provided with threads, the internal part of the filtering port (401) is provided with threads, and the contact part of the filtering port (401) and external slurry is provided with a steel wire mesh.
With reference to fig. 10, 12 and 16 ~ 20, the inner diameter of the movable nut (703) is consistent with the outer diameters of the high-pressure water main pipe (301), the high-pressure air main pipe (303) and the slurry circulation main pipe (404) which need to be connected correspondingly, the convex block of the movable nut (703) is embedded into the concave groove of the fixed ring (702), and the movable nut (703) can rotate freely in the fixed ring (702).
With reference to fig. 1, 4, 6, 10 and 12, a high-pressure water main pipe (301), a high-pressure gas main pipe (303) and a slurry circulation main pipe (404) at a high-pressure water gas injection lubrication sleeve subsection are communicated through a connecting hose (701), a movable nut (703) and a fixing ring (702) to form an internal pipeline connecting structure (7), and the upper end of the internal pipeline connecting structure (7) is connected with a pressurization gas filling device (306) and a slurry circulation device (402); when the water-air injection lubrication sleeve around the pile is connected, the threaded fixing rings (204) and the baffle rings (206) on the upper section and the lower section of the outer layer (201) of the high-pressure injection sleeve are aligned, and the connecting ring (207) is screwed to connect.
With reference to fig. 1, 2 ~ 3, and 14 ~ 15, 4 clamping arms (605) are arranged symmetrically along the circumference, and a group of clamping arms is arranged in the vertical direction 3 ~ 5m, the clamping arms (605) are driven by a hydraulic jack (603) to clamp a pile (5) to be pulled, a preformed hole (208) is arranged at the corresponding position of a casing inner layer (202), a base of the hydraulic jack (603) is positioned on a fixed base (601) and a fixed support (602) welded on a casing outer layer (201), and can freely extend and retract in the preformed hole (208), a reinforcing ring (610) is arranged on the inner wall of the preformed hole (208), an isolation film (611) is arranged between the hydraulic jack (603) and the inner wall of the casing inner layer (202), a protective tube (608) is arranged outside the oil supply tube (607) for protection, and the protective tube (608) is made of PVC tube or thin-wall steel tube.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The pile-surrounding high-pressure water gas injection lubrication pile pulling sleeve is characterized by comprising a sleeve structure, a high-pressure water gas injection system, a slurry circulating system and a hydraulic jack clamping structure; the sleeve structure consists of an outer sleeve (201), an inner sleeve (202), sleeve rib plates (205) and a rotary drill bit (203), wherein the outer sleeve (201) and the inner sleeve (202) are connected through the sleeve rib plates (205) to form an integral structure; the high-pressure water gas injection system comprises a high-pressure water main pipe (301), a high-pressure water branch pipe (302), a high-pressure gas main pipe (303), a high-pressure gas branch pipe (304), pressurizing gas-filling equipment (306) and a pipeline fixing piece (307), wherein the high-pressure water main pipe (301) is positioned in the high-pressure gas main pipe (303), and the high-pressure water main pipe (301) and the high-pressure gas main pipe (303) are at least arranged in 4 pairs along the circumference; the mud circulating system consists of mud circulating equipment (402), mud circulating branch pipes (403) and a mud circulating main pipe (404); the hydraulic jack clamping structure is composed of a fixed base plate (601), a fixed support (602), a hydraulic jack (603), a clamping arm (605), an oil supply pipe (607), oil supply equipment (609) and an isolation film (611).
2. The pile periphery high-pressure water gas jet lubrication pile pulling sleeve according to claim 1, wherein the high-pressure water main pipe (301) and the high-pressure gas main pipe (303) are coaxial circular pipes, and the high-pressure water main pipe is positioned in the high-pressure gas main pipe (303).
3. The pile-surrounding high-pressure water-gas jet lubrication pile pulling sleeve according to claim 1, wherein the rotary drill bit (203) is positioned at the bottom of the pile-surrounding high-pressure water-gas jet lubrication sleeve, the rotary drill bit (203) is driven by a driver to cut soil, and corresponding cables are arranged in a cavity between the outer sleeve (201) and the inner sleeve (202).
4. The pile-surrounding high-pressure water-gas jet lubrication pile pulling sleeve according to claim 1, wherein 4 clamping arms (605) are symmetrically arranged along the circumference and are arranged in a group in the vertical direction of 3 ~ 5m, the clamping arms (605) are driven by a hydraulic jack (603) to clamp a pile (5) to be pulled, a reserved hole (208) is arranged at the corresponding position of the inner sleeve (202), the base of the hydraulic jack (603) is positioned on a fixed bottom plate (601) and a fixed support (602) welded on the outer sleeve (201) and can freely stretch and retract in the reserved hole (208), a reinforcing rib ring (610) is arranged on the inner wall of the reserved hole (208), and an isolating membrane (611) is arranged between the hydraulic jack (603) and the inner wall of the inner sleeve (202).
5. The pile periphery high-pressure water-air jet lubrication pile pulling sleeve according to claim 1, wherein the high-pressure water main pipe (301), the high-pressure air main pipe (303) and the slurry circulation main pipe (404) are connected between the upper section and the lower section by adopting a connecting hose (701), a convex block of a movable nut (703) is embedded into a concave groove of a fixed ring (702), and the connecting hose (701) is connected with a corresponding pipeline interface by screwing the movable nut (703) and the fixed ring (702) on the connecting hose (701) through rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205888.0U CN209958360U (en) | 2019-02-18 | 2019-02-18 | Pile-surrounding high-pressure water-gas jet lubrication pile pulling sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205888.0U CN209958360U (en) | 2019-02-18 | 2019-02-18 | Pile-surrounding high-pressure water-gas jet lubrication pile pulling sleeve |
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| CN209958360U true CN209958360U (en) | 2020-01-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061141A1 (en) * | 2021-10-13 | 2023-04-20 | 上海建工七建集团有限公司 | Pile pulling device capable of reducing soil disturbance, and method for using same |
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2019
- 2019-02-18 CN CN201920205888.0U patent/CN209958360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023061141A1 (en) * | 2021-10-13 | 2023-04-20 | 上海建工七建集团有限公司 | Pile pulling device capable of reducing soil disturbance, and method for using same |
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