CN113482548B - Butt joint structure about steel casing - Google Patents
Butt joint structure about steel casing Download PDFInfo
- Publication number
- CN113482548B CN113482548B CN202110891849.2A CN202110891849A CN113482548B CN 113482548 B CN113482548 B CN 113482548B CN 202110891849 A CN202110891849 A CN 202110891849A CN 113482548 B CN113482548 B CN 113482548B
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- Prior art keywords
- pipe
- joint pipe
- section
- ring
- convex
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 210000001503 joint Anatomy 0.000 title claims abstract description 26
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 238000003032 molecular docking Methods 0.000 claims description 6
- 238000010008 shearing Methods 0.000 abstract description 5
- 230000001681 protective effect Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009430 construction management Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of steel bushings, and discloses an upper-lower butt joint structure of the steel bushing, which comprises an upper section pipe and a lower section pipe, wherein the upper section pipe is provided with an upper insertion ring, a plurality of convex panels are convexly arranged on the upper insertion ring to form a convex block, the upper insertion ring is provided with an upper narrow section, the lower section pipe is provided with a lower insertion ring, the lower insertion ring is provided with a lower annular groove, the lower annular groove is convexly provided with a plurality of limiting plates to form a limiting section, the lower annular groove is provided with a lower wide section, when the upper section pipe is in butt joint with the lower section pipe, the upper narrow section passes through the limiting section, the convex block passes through the lower wide section, the upper section pipe and the lower section pipe relatively rotate until the convex block is arranged in the limiting section, the limiting plates are aligned up and down, the convex panels are limited to be separated upwards by the limiting plates, and the torque and the shearing force from the upper section steel bushing and the lower section steel bushing are resisted.
Description
Technical Field
The invention relates to the technical field of steel sleeves, in particular to an up-down butt joint structure of a steel sleeve.
Background
The full sleeve matched construction is a noise-free vibration, environment-friendly, stable and efficient drilling process in the field of pile foundations, and has wide application in projects such as construction of engagement piles of urban deep foundation pit building envelope, cleaning of underground barriers such as engineering waste piles and the like, construction of building foundation piles and the like in recent years.
The steel sleeve is an important component of the whole sleeve construction process, the steel sleeve adopts an inner-outer double-layer sleeve wall design, the rigidity of the steel sleeve can be effectively improved, the steel sleeve has the characteristic of being smooth inside and outside structurally, the friction resistance applied to the sleeve by the outer hole wall during the sleeve running is reduced, and meanwhile, the inner-layer sleeve wall can play a good guiding role on a drilling tool, and the drilling tool is prevented from scratching the inner wall of the sleeve.
In the prior art, steel sleeve joints are often firmly connected by adopting an inner caulking ring and an outer caulking ring together with all bolts, wherein the number of the bolts is increased according to the increase of the diameter of the steel sleeve, which leads to a plurality of bolts when the diameter of the steel sleeve is larger. In the actual operation process, the time required for stably connecting the upper steel sleeve and the lower steel sleeve is long, the processes of installing one by one and subsequent dismantling of a plurality of bolts in the connecting section are single and repeated, time and labor are wasted, the requirement of compactness of pile foundation construction site operation is difficult to meet, the construction interval time cost of pile foundation operation is not reduced, and the purpose of fine construction management is not achieved.
Disclosure of Invention
The invention aims to provide an up-down butt joint structure of a steel sleeve, and aims to solve the problem that in the prior art, the time required for connecting an upper steel sleeve and a lower steel sleeve is long.
The invention is realized by comprising an upper joint pipe and a lower joint pipe, wherein the lower end of the upper joint pipe is provided with an upper inserting ring, the lower part of the side wall of the upper inserting ring is convexly provided with a plurality of convex panels to form a convex block, the convex panels are arranged along the circumferential extension of the upper inserting ring, a plurality of convex panels are arranged at intervals, and the upper inserting ring is provided with an upper narrow section formed between the adjacent convex panels;
the upper end of the lower joint pipe is provided with a lower inserting ring for the upper inserting ring to be inserted and abutted, a lower annular groove is arranged in the lower inserting ring, the lower annular groove penetrates through the top of the lower inserting ring to form a top opening, and the lower annular groove extends along the circumferential direction of the lower inserting ring;
the upper part of the side wall of the lower ring groove is convexly provided with a plurality of limiting plates to form a limiting section, the limiting plates are arranged along the circumferential extension of the lower insertion ring, a plurality of limiting plates are arranged at intervals, and the lower ring groove is provided with a lower wide section formed between adjacent limiting plates;
when the lower end of the upper joint pipe is in butt joint with the upper end of the lower joint pipe, the upper narrow section passes through the limit section from top to bottom, and the convex block passes through the lower wide section from top to bottom, the upper joint pipe and the lower joint pipe relatively rotate until the convex block is arranged in the limit section, the limit plate and the convex panel are arranged in an up-down alignment manner, the limit plate limits the convex panel to be separated upwards, and the upper narrow section is arranged in the lower wide section.
Further, through holes are respectively formed in the upper narrow section and the lower wide section, and after the upper section pipe and the lower section pipe relatively rotate, bolts penetrate through the through holes to relatively fix the upper section pipe and the lower section pipe.
Further, the side wall of the upper insert ring comprises an inner wall arranged inwards and an outer wall arranged outwards, and the inner wall and the outer wall are respectively provided with the convex panels.
Further, the side wall of the lower ring groove comprises two opposite inner side walls, and the two inner side walls of the lower ring groove are respectively provided with the limiting plate.
Further, the top of the upper insert ring is provided with a cover ring surface which is horizontally arranged downwards, the cover ring surface protrudes towards two sides of the upper insert ring and is circumferentially arranged along the circumferential direction of the upper insert ring, and when the lower end of the upper joint pipe is in butt joint with the upper end of the lower joint pipe, the cover ring surface covers the top opening from top to bottom.
Further, the top of the convex panel is provided with a convex embedding abutting surface which is arranged upwards, the bottom of the limiting plate is provided with a limiting abutting surface which is arranged downwards, and when the lower end of the upper joint pipe is abutted with the upper end of the lower joint pipe, the convex embedding abutting surface is abutted with the limiting abutting surface up and down.
Further, when the upper joint pipe is in butt joint with the lower joint pipe, after the bolt passes through the through hole, an upper protection pipe is sleeved on the periphery of the lower part of the upper joint pipe, a lower protection pipe is sleeved on the periphery of the upper part of the lower joint pipe, and the bottom of the upper protection pipe is in butt joint with the top of the lower protection pipe.
Further, an upper bulge protruding towards the upper joint pipe is convexly arranged on the inner side surface of the upper protection pipe, an upper groove is formed in the periphery of the upper joint pipe, and the upper bulge is embedded into the upper groove;
the inner side face of the lower protection tube is convexly provided with a lower bulge which protrudes towards the lower joint tube, the periphery of the lower joint tube is provided with a lower groove, and the lower bulge is embedded into the lower groove.
Further, the bottom of the upper protection tube is provided with a limiting protruding block protruding towards the lower joint tube, the top of the lower protection tube is provided with a recessed limiting concave groove, and the limiting protruding block is embedded in the limiting concave groove.
Further, the periphery of the upper joint pipe and the periphery of the lower joint pipe are respectively sunken with a plurality of sunken stripes, the inner side surface of the upper protection pipe and the inner side surface of the lower protection pipe are respectively protruded with a plurality of protruded stripes, and the protruded stripes are embedded into the sunken stripes.
Compared with the prior art, the upper and lower butt joint structure of the steel sleeve provided by the invention has the advantages that the upper section and the lower section are in butt joint, the upper narrow section passes through the limit section, the convex block passes through the lower wide section, the upper section and the lower section are relatively rotated until the convex block is arranged in the limit section, the limit plate and the convex panel are arranged in an up-down alignment manner, the limit plate limits the convex panel to be separated upwards, and the torque and the shearing force from the upper and lower section steel sleeve are resisted.
Drawings
FIG. 1 is a perspective view of a steel sleeve up-down docking structure provided by the invention before docking;
fig. 2 is a perspective view of a steel sleeve up-down butt joint structure after butt joint;
FIG. 3 is a perspective view of an upper protective tube and a lower protective tube of the upper and lower butt joint structure of the steel sleeve provided by the invention;
FIG. 4 is an enlarged view of a portion of the steel sleeve up and down docking structure of the present invention prior to docking;
in the figure: the upper joint pipe 100, the lower joint pipe 101, the upper insert ring 102, the convex panel 103, the upper narrow section 104, the lower insert ring 105, the lower annular groove 106, the limiting plate 107, the lower wide section 109, the through hole 110, the upper protective pipe 112, the lower protective pipe 113, the upper bulge 114, the upper groove 115, the lower bulge 116, the lower groove 117, the limiting convex block 118, the limiting concave groove 119, the concave stripe 120 and the convex stripe 121.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1 to 4, a preferred embodiment of the present invention is provided.
The steel sleeve up-down butt joint structure comprises an upper joint pipe 100 and a lower joint pipe 101; the lower end of the upper joint pipe 100 is provided with an upper insert ring 102, the wall thickness of the upper insert ring 102 is smaller than that of the upper joint pipe 100, the inner diameter of the upper insert ring 102 is larger than that of the upper joint pipe 100, the outer diameter of the upper insert ring 102 is smaller than that of the upper joint pipe 100, a plurality of convex panels 103 are convexly arranged at the lower part of the side wall of the upper insert ring 102 to form a convex block, the convex panels 103 are arranged along the circumferential extension of the upper insert ring 102, the plurality of convex panels 103 are arranged at intervals along the circumferential direction of the upper insert ring 102, and the upper insert ring 102 is provided with upper narrow sections 104 formed between the adjacent convex panels 103;
the upper end of the lower joint pipe 101 is provided with a lower insert ring 105 in which the upper insert ring 102 is inserted and abutted, the inner diameter and the outer diameter of the lower insert ring 105 are equal to those of the lower joint pipe 101, a lower annular groove 106 is arranged in the lower insert ring 105, the lower annular groove 106 penetrates through the top of the lower insert ring 105 to form a top opening, and the lower annular groove 106 is arranged along the circumferential extension of the lower insert ring 105;
the upper part of the side wall of the lower annular groove 106 is convexly provided with a plurality of limiting plates 107, the limiting plates 107 are arranged in the groove of the lower annular groove 106 to form limiting sections, the limiting plates 107 are arranged along the circumferential extension of the lower insert ring 105, the plurality of limiting plates 107 are arranged at intervals, and the lower annular groove 106 is provided with lower wide sections 109 formed between adjacent limiting plates 107;
when the lower end of the upper joint pipe 100 is butted with the upper end of the lower joint pipe 101, the upper narrow section 104 passes through the limit section from top to bottom, and after the convex block passes through the lower wide section 109 from top to bottom, the upper joint pipe 100 and the lower joint pipe 101 relatively rotate until the convex block is placed in the limit section, the limit plate 107 and the convex panel 103 are arranged in an up-down alignment manner, the limit plate 107 limits the convex panel 103 to be separated upwards, the upper narrow section 104 is placed in the lower wide section 109 to resist the torque and shearing force from the upper joint steel sleeve and the lower joint steel sleeve.
Through holes 110 are respectively arranged in the upper narrow section 104 and the lower wide section 109, after the upper joint pipe 100 and the lower joint pipe 101 relatively rotate, the through holes 110 in the upper narrow section 104 are aligned with the through holes 110 in the lower wide section 109, and bolts penetrate through the through holes 110 in the upper narrow section 104 and the lower wide section 109 to relatively fix the upper joint pipe 100 and the lower joint pipe 101.
The side wall of the upper insert ring 102 includes an inner wall disposed inwardly and an outer wall disposed outwardly, the inner wall and the outer wall being provided with a convex panel 103, respectively, the convex panel 103 being disposed along a circumferential extension of the inner wall in the inner wall of the upper insert ring 102, the convex panel 103 being disposed along a circumferential extension of the outer wall in the outer wall of the upper insert ring 102, the convex panel 103 in the inner wall of the upper insert ring 102 being disposed in alignment with the convex panel 103 in the outer wall of the upper insert ring 102.
The side wall of the lower ring groove 106 comprises two oppositely arranged inner side walls, the two inner side walls of the lower ring groove 106 are respectively provided with a limiting plate 107, and the limiting plates 107 arranged on the two inner side walls are aligned;
in the lower wide section 109, through holes 110 are respectively formed in two inner side walls, the through holes 110 in the two inner side walls are aligned and arranged, and the size of the through holes 110 in the two inner side walls is equal to that of the through holes 110 in the upper narrow section 104, and after the upper joint pipe 100 and the lower joint pipe 101 relatively rotate, the through holes 110 in the two inner side walls are overlapped with the through holes 110 in the upper narrow section 104, so that the bolts can pass smoothly.
The top of the upper insert ring 102 is provided with a cover ring surface, the cover ring surface is horizontally arranged downwards, the cover ring surface protrudes towards two sides of the upper insert ring 102 and is circumferentially arranged along the upper insert ring 102, when the lower end of the upper joint pipe 100 is in butt joint with the upper end of the lower joint pipe 101, the cover ring surface covers the top opening from top to bottom, and external stone filling scraps and silt are prevented from entering the lower ring groove 106.
The top of the convex panel 103 has a convex abutting surface, the convex abutting surface is arranged upwards, the bottom of the limiting plate 107 has a limiting abutting surface, the limiting abutting surface is arranged downwards, after the lower end of the upper joint pipe 100 is abutted with the upper end of the lower joint pipe 101, the convex abutting surface is abutted with the limiting abutting surface up and down, the upper joint pipe 100 and the lower joint pipe 101 are prevented from falling off, the torque and the shearing force from the steel sleeve are resisted, and the stable connection between the upper joint pipe 100 and the lower joint pipe 101 is maintained.
When the upper joint pipe 100 is in butt joint with the lower joint pipe 101, after the bolts pass through the through holes 110, the periphery of the lower part of the upper joint pipe 100 is sleeved with an upper protection pipe 112, the periphery of the upper part of the lower joint pipe 101 is sleeved with a lower protection pipe 113, and the bottom of the upper protection pipe 112 is in butt joint with the top of the lower protection pipe 113;
the upper protection pipe 112 and the lower protection pipe 113 are sleeved on the connecting part of the upper joint pipe 100 and the lower joint pipe 101, so that on one hand, the connection of the upper joint pipe 100 and the lower joint pipe 101 is reinforced, the upper joint pipe 100 and the lower joint pipe 101 are prevented from falling off, the torque and the shearing force from the steel sleeve are resisted, and the stable connection of the upper joint pipe 100 and the lower joint pipe 101 is maintained;
on the other hand, the upper and lower protection pipes 112 and 113 form a sealed protection space for the steel casing pipe, preventing external stone-filling chips and silt from entering the junction of the upper and lower joint pipes 100 and 101.
An upper bulge 114 protruding towards the upper joint pipe 100 is convexly arranged on the inner side surface of the upper protective pipe 112, an upper groove 115 is formed in the periphery of the upper joint pipe 100, and the upper bulge 114 is embedded into the upper groove 115, so that the movement freedom degree of the upper protective pipe 112 along the directions of three right-angle coordinate axes of x, y and z is limited, and the upper protective pipe 112 is prevented from moving relative to the upper joint pipe 100;
the inner side surface of the lower protection tube 113 is convexly provided with a lower bulge 116 protruding towards the lower joint tube 101, the periphery of the lower joint tube 101 is provided with a lower groove 117, the lower bulge 116 is embedded into the lower groove 117, the movement freedom degree of the lower protection tube 113 along the directions of three right-angle coordinate axes of x, y and z is limited, and the lower protection tube 113 is prevented from moving relative to the lower joint tube 101.
The bottom of the upper protection tube 112 is provided with a limiting convex block 118 protruding towards the lower joint tube 101, the top of the lower protection tube 113 is provided with a concave limiting concave groove 119, the shape and the size of the limiting convex block 118 are the same as those of the limiting concave groove 119, and the limiting convex block 118 is embedded in the limiting concave groove 119 to prevent the lower protection tube 113 from moving relative to the lower joint tube 101.
The periphery of the upper joint pipe 100 and the periphery of the lower joint pipe 101 are respectively sunken with a plurality of sunken stripes 120, the inner side surface of the upper protective pipe 112 and the inner side surface of the lower protective pipe 113 are respectively protruded with a plurality of protruded stripes 121, the protruded stripes 121 are aligned with the sunken stripes 120, and the length and the width of the protruded stripes 121 are equal to those of the sunken stripes 120;
when the upper and lower sheathing pipes 112 and 113 are installed, the protruding stripes 121 are embedded into the recessed stripes 120, which limits the degree of freedom of movement in the x, y, z directions of the three right-angle coordinate axes and the degree of freedom of rotation about the three coordinate axes, preventing the upper and lower sheathing pipes 112 and 113 from moving up and down along the axis of the steel bushing, and preventing the upper and lower sheathing pipes 112 and 113 from rotating about the axis of the steel bushing.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The upper and lower butt joint structure of the steel sleeve is characterized by comprising an upper joint pipe and a lower joint pipe;
the lower end of the upper joint pipe is provided with an upper insert ring, the lower part of the side wall of the upper insert ring is convexly provided with a plurality of convex panels to form a convex block, the convex panels are arranged along the circumferential extension of the upper insert ring, a plurality of convex panels are arranged at intervals, and the upper insert ring is provided with an upper narrow section formed between the adjacent convex panels;
the upper end of the lower joint pipe is provided with a lower inserting ring for the upper inserting ring to be inserted and abutted, a lower annular groove is arranged in the lower inserting ring, the lower annular groove penetrates through the top of the lower inserting ring to form a top opening, and the lower annular groove extends along the circumferential direction of the lower inserting ring;
the upper part of the side wall of the lower ring groove is convexly provided with a plurality of limiting plates to form a limiting section, the limiting plates are arranged along the circumferential extension of the lower insertion ring, a plurality of limiting plates are arranged at intervals, and the lower ring groove is provided with a lower wide section formed between adjacent limiting plates;
when the lower end of the upper joint pipe is in butt joint with the upper end of the lower joint pipe, the upper narrow section passes through the limit section from top to bottom, and the convex block passes through the lower wide section from top to bottom, the upper joint pipe and the lower joint pipe relatively rotate until the convex block is arranged in the limit section, the limit plate and the convex panel are in vertical alignment, the limit plate limits the convex panel to be separated upwards, and the upper narrow section is arranged in the lower wide section;
through holes are respectively formed in the upper narrow section and the lower wide section, and after the upper joint pipe and the lower joint pipe relatively rotate, bolts penetrate through the through holes to relatively fix the upper joint pipe and the lower joint pipe;
when the upper joint pipe is in butt joint with the lower joint pipe, after the bolt passes through the through hole, an upper protection pipe is sleeved on the periphery of the lower part of the upper joint pipe, a lower protection pipe is sleeved on the periphery of the upper part of the lower joint pipe, and the bottom of the upper protection pipe is in butt joint with the top of the lower protection pipe;
an upper bulge protruding towards the upper joint pipe is arranged on the inner side surface of the upper protection pipe in a protruding mode, an upper groove is formed in the periphery of the upper joint pipe, and the upper bulge is embedded into the upper groove;
the inner side face of the lower protection tube is convexly provided with a lower bulge which protrudes towards the lower joint tube, the periphery of the lower joint tube is provided with a lower groove, and the lower bulge is embedded into the lower groove.
2. The steel bushing up-down docking structure of claim 1, wherein the side wall of the upper insert ring includes an inner wall disposed inward and an outer wall disposed outward, the inner wall and the outer wall being provided with the convex panels, respectively.
3. The steel bushing up-down docking structure of claim 1, wherein the side wall of the lower ring groove comprises two opposite inner side walls, and the two inner side walls of the lower ring groove are respectively provided with the limiting plate.
4. A steel bushing up-down abutting structure according to any one of claims 1 to 3, wherein a cover ring surface horizontally arranged downward is arranged at the top of the upper insertion ring, the cover ring surface protrudes towards two sides of the upper insertion ring and is circumferentially arranged along the circumferential direction of the upper insertion ring, and when the lower end of the upper joint pipe is abutted with the upper end of the lower joint pipe, the cover ring surface covers the top opening from top to bottom.
5. A steel bushing up-down abutting structure according to any one of claims 1 to 3, wherein the top of the convex panel is provided with a convex abutting surface which is arranged upwards, the bottom of the limiting plate is provided with a limiting abutting surface which is arranged downwards, and when the lower end of the upper section pipe is abutted with the upper end of the lower section pipe, the convex abutting surface is abutted with the limiting abutting surface up and down.
6. The up-down butt joint structure of steel bushing according to claim 1, wherein the bottom of the upper protection tube is provided with a limit protruding block protruding towards the lower section tube, the top of the lower protection tube is provided with a recessed limit recess groove, and the limit protruding block is embedded in the limit recess groove.
7. The up-down butt joint structure of steel casing pipes according to claim 1 or 6, wherein the outer circumference of the upper joint pipe and the outer circumference of the lower joint pipe are respectively recessed with a plurality of recessed stripes, the inner side surface of the upper protection pipe and the inner side surface of the lower protection pipe are respectively raised with a plurality of raised stripes, and the raised stripes are embedded into the recessed stripes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110891849.2A CN113482548B (en) | 2021-08-04 | 2021-08-04 | Butt joint structure about steel casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110891849.2A CN113482548B (en) | 2021-08-04 | 2021-08-04 | Butt joint structure about steel casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113482548A CN113482548A (en) | 2021-10-08 |
| CN113482548B true CN113482548B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110891849.2A Active CN113482548B (en) | 2021-08-04 | 2021-08-04 | Butt joint structure about steel casing |
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| CN (1) | CN113482548B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117145452B (en) * | 2023-07-10 | 2024-03-26 | 中国地质大学（武汉） | Up-down separation type detector protection tube transmission mechanism for deep detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429415A (en) * | 1974-03-22 | 1976-03-24 | Hardie Co Pty Ltd James | Pipe joint |
| CN102747729A (en) * | 2012-07-13 | 2012-10-24 | 中铁二十四局集团上海铁建工程有限公司 | Sleeve connection device for bored cast-in-place pile construction |
| CN110331718A (en) * | 2019-07-05 | 2019-10-15 | 深圳宏业基岩土科技股份有限公司 | Mortise and tenon type connects steel bushing pipe joint structure |
| CN110578840A (en) * | 2019-09-11 | 2019-12-17 | 广东管博管道技术科技有限公司 | Pipeline mortise and tenon joint structure |
| CN210509055U (en) * | 2019-07-25 | 2020-05-12 | 中铁八局集团建筑工程有限公司 | Detachable steel sleeve drill bit structure |
| CN112267458A (en) * | 2020-10-14 | 2021-01-26 | 中国建筑第八工程局有限公司 | Micro-disturbance construction method for full-casing cast-in-situ bored pile adjacent to subway |
-
2021
- 2021-08-04 CN CN202110891849.2A patent/CN113482548B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1429415A (en) * | 1974-03-22 | 1976-03-24 | Hardie Co Pty Ltd James | Pipe joint |
| CN102747729A (en) * | 2012-07-13 | 2012-10-24 | 中铁二十四局集团上海铁建工程有限公司 | Sleeve connection device for bored cast-in-place pile construction |
| CN110331718A (en) * | 2019-07-05 | 2019-10-15 | 深圳宏业基岩土科技股份有限公司 | Mortise and tenon type connects steel bushing pipe joint structure |
| CN210509055U (en) * | 2019-07-25 | 2020-05-12 | 中铁八局集团建筑工程有限公司 | Detachable steel sleeve drill bit structure |
| CN110578840A (en) * | 2019-09-11 | 2019-12-17 | 广东管博管道技术科技有限公司 | Pipeline mortise and tenon joint structure |
| CN112267458A (en) * | 2020-10-14 | 2021-01-26 | 中国建筑第八工程局有限公司 | Micro-disturbance construction method for full-casing cast-in-situ bored pile adjacent to subway |
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| Publication number | Publication date |
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| CN113482548A (en) | 2021-10-08 |
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