CN114378412A - Middle sleeve connection construction method for micro steel pipe pile sleeve in limited space - Google Patents
Middle sleeve connection construction method for micro steel pipe pile sleeve in limited space Download PDFInfo
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- CN114378412A CN114378412A CN202111682890.5A CN202111682890A CN114378412A CN 114378412 A CN114378412 A CN 114378412A CN 202111682890 A CN202111682890 A CN 202111682890A CN 114378412 A CN114378412 A CN 114378412A
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- sleeve
- pipes
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 170
- 239000010959 steel Substances 0.000 title claims abstract description 170
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 claims abstract description 139
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 19
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 238000010891 electric arc Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- -1 hexamethyltetramine Chemical compound 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
Abstract
The invention discloses a limited space micro steel pipe pile sleeve middle sleeve connection construction method, which relates to the technical field of steel pipe pile construction and comprises the following specific steps: firstly, selecting materials; secondly, cleaning a welding opening; thirdly, splicing the inner lining sleeve; fourthly, welding; fifthly, splicing the steel pipes; sixthly, welding the steel pipe; and seventhly, detecting the ending. According to the invention, the lining sleeve is arranged between the two steel pipes, one steel pipe is welded and fixed with the lining sleeve before the two steel pipes are spliced with each other, and the other steel pipe is sleeved outside the lining sleeve, so that the splicing between the two steel pipes is realized, and the arrangement of the lining sleeve can effectively improve the connection stability of the two steel pipes before welding, thereby reducing the welding difficulty.
Description
Technical Field
The invention relates to the technical field of steel pipe pile construction, in particular to a limited-space miniature steel pipe pile sleeve-in-sleeve connection construction method.
Background
When miniature steel-pipe pile is under construction, need be under construction at the indoor space because of the restriction of site conditions sometimes, just lead to steel pipe length to need to carry out the segmentation construction according to indoor height, and when multistage steel pipe is under indoor welding operation, because indoor space is less, be difficult to guarantee the rigidity between two steel pipes when the welding, increased the degree of difficulty of weldment work. Therefore, it is necessary to provide a method for connecting micro steel pipe piles in a limited space to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for connecting and constructing a micro steel pipe pile sleeve in a limited space, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a construction method for connecting a micro steel pipe pile sleeve in a limited space comprises the following specific steps:
selecting materials, screening steel pipes used by the steel pipe pile, selecting steel pipes with adaptive specifications according to data on construction drawings and construction environments, checking whether obvious defects exist on the surfaces of the steel pipes, and selecting the steel pipes with smooth surfaces for later use;
cleaning a welded junction, namely cleaning stains at the welded port of the steel pipe by using a cleaning agent, and cleaning rust at the welded port of the steel pipe by using abrasive paper and a steel wire ball;
splicing the inner bushing pipes, namely inserting the inner bushing pipes into the ends to be welded of the steel pipes, wherein the length of the inner bushing pipes is about 300mm, the length of the inner bushing pipes extending into the steel pipes is about 150mm, inserting clamping plates into clamping grooves formed in the middle of the inner bushing pipes, and inserting positioning steel bars into reserved holes in one ends of the steel pipes to fix the positions of the inner bushing pipes and the steel pipes;
welding, namely welding the steel pipe and the inner lining sleeve in an argon arc welding or electric arc welding mode, wherein the steel pipe and the inner lining sleeve are welded from two sides of the steel pipe during welding, after the two sides of the strip steel pipe are welded, the clamping plate is pulled out, the non-welded part of the steel pipe and the inner lining sleeve is subjected to repair welding, the height of a welding seam is required to be noticed during welding, and the height of the welding seam does not exceed the difference between the outer diameter of the inner lining sleeve and the inner diameter of the steel pipe;
splicing the steel pipes, namely sleeving the steel pipes to be spliced at the other end of the lining sleeve until one ends of the two steel pipes are attached to each other, and inserting positioning steel bars into the reserved holes to ensure that the positions between the steel pipes and the lining sleeve are fixed;
welding the steel pipes, namely welding the joint of the two steel pipes in an argon arc welding or arc welding mode, wherein the welding is carried out in a surrounding welding mode, and the difference between the height and width of a welding seam is noticed during welding;
detecting the end, detecting the welding position of the steel pipe, firstly performing appearance detection, wherein the detection content comprises whether a welding seam is in smooth transition or not, whether the residual height of the welding seam and the width difference of the welding seam meet the standard or not, and the surface of a welded junction has the defects of undercut, misalignment, pores, slag inclusion, cracks and the like.
Preferably, in the second step, when the steel pipe is welded with much rust, hydrochloric acid, hexamethyltetramine, sodium dodecyl benzene sulfonate and sodium chloride are mixed to form a rust remover, the welded end of the steel pipe is immersed in the rust remover to remove the rust on the surface of the steel pipe, and after the rust removal is finished, the rust remover is wiped off by sponge and cotton cloth, so that the weld crater cleaning work can be finished.
Preferably, in the fourth step, the welding process mainly comprises:
1) selecting welding rods, and selecting the welding rods with proper specifications according to the materials and the calibers of the steel pipe pile and the lining sleeve;
2) the welded junction is electrified and preheated, the steel pipe pile and the inner lining sleeve are electrified and heated in an electric heating mode, and the temperature of the welded junction of the steel pipe pile and the inner doped sleeve is detected by a temperature detector;
3) welding, namely welding the steel pipe pile and the inner bushing pipe in an argon arc welding or electric arc welding mode, and also welding in an argon arc welding bottoming and electric arc welding supplementing mode;
4) and detecting, namely detecting the welding opening after welding is finished, wherein the detection content is the same as the seventh step.
Preferably, in the fifth step, before inserting the positioning steel bar, attention should be paid to whether the opening on the lining sleeve corresponds to the steel pipe preformed hole and whether the end parts of the two steel pipes are attached or not.
Preferably, in the sixth step, the welding process is the same as that in the fourth step;
preferably, in the seventh step, after the welding quality is detected to be qualified, the welding seam is polished by an angle grinder, the polishing standard is that the surface is smooth and has no bulge, and the welding seam can be in smooth transition between the two steel pipes.
The invention has the technical effects and advantages that:
1. according to the invention, the lining sleeve is arranged between the two steel pipes, one steel pipe is welded and fixed with the lining sleeve before the two steel pipes are spliced with each other, and the other steel pipe is sleeved outside the lining sleeve, so that the splicing between the two steel pipes is realized, and the arrangement of the lining sleeve can effectively improve the connection stability of the two steel pipes before welding, thereby reducing the welding difficulty;
2. according to the invention, the clamping groove and the clamping plate are arranged, the clamping groove is positioned in the middle of the lining sleeve, the arrangement of the clamping groove and the clamping plate is convenient for determining the length of the lining sleeve inserted into the steel pipe, the lengths of the lining sleeve extending into the two steel pipes are ensured to be equal, and the connection stability between the steel pipe and the lining sleeve is improved by arranging the through hole, the preformed hole and the positioning steel bar, so that the welding of the steel pipe is facilitated;
3. the invention solves the problem of difficult sectional construction of the steel pipe pile by adopting a mode of splicing and welding the steel pipe and the inner bushing pipe, and simultaneously ensures the connection quality of the steel pipe pile.
Drawings
Fig. 1 is a schematic view of the structure of the liner sleeve of the present invention.
FIG. 2 is a schematic view of the splicing of the liner sleeve and the steel pipe of the present invention.
FIG. 3 is a schematic cross-sectional view of the steel pipe of the present invention after splicing.
In the figure: 1. a steel pipe; 2. a liner sleeve; 3. a card slot; 4, clamping a plate; 5. a through hole; 6. reserving a hole; 7. and (5) positioning the reinforcing steel bars.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a construction method for connecting a micro steel pipe pile sleeve in a limited space, which comprises the following specific steps:
selecting materials, screening steel pipes 1 used by the steel pipe pile, selecting the steel pipes 1 with the adaptive specifications according to data on a construction drawing and a construction environment, checking whether the surfaces of the steel pipes 1 have obvious defects, and selecting the steel pipes 1 with smooth surfaces for later use;
cleaning a welding opening, namely cleaning stains at the welding port of the steel pipe 1 by using a cleaning agent, cleaning rust at the welding port of the steel pipe 1 by using abrasive paper and a steel wire ball, mixing hydrochloric acid, hexamethyltetramine, sodium dodecyl benzene sulfonate and sodium chloride into a rust remover when the welding port of the steel pipe 1 has more rust, immersing the welding end of the steel pipe 1 into the rust remover, cleaning the rust on the surface of the steel pipe 1, and wiping the rust remover by using sponge and cotton cloth after rust removal is finished, so that the welding opening cleaning work can be finished;
splicing the inner bushing 2, inserting the inner bushing 2 into one end to be welded of the steel pipe 1, wherein the length of the inner bushing 2 is about 300mm, the length of the inner bushing 2, which extends into the steel pipe 1, is about 150mm, inserting the clamping plate 4 into the clamping groove 3 formed in the middle of the inner bushing 2, and inserting the positioning steel bar 7 into the preformed hole 6 in one end of the steel pipe 1 to fix the position between the inner bushing 2 and the steel pipe 1;
welding, adopting argon arc welding or electric arc welding to weld the steel pipe 1 and the lining sleeve 2, welding from two sides of the steel pipe 1 during welding, after welding from two sides of the strip steel pipe 1, extracting the clamping plate 4, performing repair welding on the non-welded part of the steel pipe 1 and the lining sleeve 2, paying attention to the height of a welding seam during welding, wherein the height of the welding seam does not exceed the difference between the outer diameter of the lining sleeve 2 and the inner diameter of the steel pipe 1, and the main flow of welding is as follows:
1) selecting welding rods, wherein the welding rods with proper specifications are selected according to the materials and the calibers of the steel pipe pile and the inner lining sleeve 2;
2) the welded junction is electrified and preheated, the steel pipe pile and the lining sleeve 2 are electrified and heated in an electric heating mode, and the temperature of the welded junction of the steel pipe pile and the inner doped sleeve is detected by a temperature detector;
3) welding, namely welding the steel pipe pile and the inner bushing pipe 2 in an argon arc welding or electric arc welding mode, and also welding in an argon arc welding bottoming and electric arc welding supplementing mode;
4) detecting, namely detecting a welding opening after welding is finished, wherein the detection content is the same as the seventh step;
splicing the steel pipes 1, sleeving the steel pipes 1 to be spliced at the other ends of the lining sleeves 2 until one ends of the two steel pipes 1 are attached to each other, inserting the positioning steel bars 7 into the reserved holes 6 to ensure that the positions between the steel pipes 1 and the lining sleeves 2 are fixed, and paying attention to whether the holes in the lining sleeves 2 correspond to the reserved holes 6 in the steel pipes 1 before the positioning steel bars 7 are inserted and paying attention to whether the end parts of the two steel pipes 1 are attached to each other;
welding the steel pipes 1, namely welding the joint of the two steel pipes 1 in an argon arc welding or arc welding mode, wherein the welding is carried out in a surrounding welding mode, the difference between the height and width of a welding seam is noticed during welding, and the welding process is the same as the step four;
detecting the end, detecting the welding position of the steel pipe 1, firstly performing appearance detection, detecting the content including whether the welding seam is in smooth transition or not, whether the surplus height of the welding seam and the width difference of the welding seam meet the standard or not, and extracting the positioning steel bar 7 after the appearance detection is completed due to the defects of undercut, misalignment, air holes, slag inclusion, cracks and the like on the surface of the welded junction, performing strength detection on the welding position, wherein the strength detection includes tensile property detection and hardness detection, after the welding quality detection is qualified, an angle grinder is adopted to polish the welding seam, the polishing standard is smooth in surface and free of protrusions, and the welding seam can be in smooth transition between the two steel pipes 1.
The invention realizes the splicing between two steel pipes 1 by arranging the lining sleeve 2 between the two steel pipes 1, and welding and fixing one steel pipe 1 and the lining sleeve 2 before the two steel pipes 1 are spliced with each other, and then sleeving the other steel pipe 1 outside the lining sleeve 2, the arrangement of the lining sleeve 2 can effectively improve the connection stability of the two steel pipes 1 before welding, thereby reducing the welding difficulty, the arrangement of the clamping groove 3 and the clamping plate 4 ensures that the length of the lining sleeve 2 inserted into the steel pipe 1 is convenient to determine by the arrangement of the clamping groove 3 and the clamping plate 4, the lengths of the lining sleeves 2 penetrating into the two steel pipes 1 are equal, the connection stability between the steel pipes 1 and the lining sleeve 2 is improved by arranging the through hole 5, the reserved hole 6 and the positioning reinforcing steel bar 7, the welding of the steel pipes 1 is convenient, and the splicing and welding mode of the steel pipes 1 and the lining sleeve 2 is adopted, the problem of steel-pipe pile segmentation construction difficulty is solved, the connection quality of steel-pipe pile has been guaranteed simultaneously.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A construction method for connecting a micro steel pipe pile sleeve in a limited space is characterized by comprising the following specific steps:
selecting materials, screening steel pipes used by the steel pipe pile, selecting steel pipes with adaptive specifications according to data on construction drawings and construction environments, checking whether obvious defects exist on the surfaces of the steel pipes, and selecting the steel pipes with smooth surfaces for later use;
cleaning a welded junction, namely cleaning stains at the welded port of the steel pipe by using a cleaning agent, and cleaning rust at the welded port of the steel pipe by using abrasive paper and a steel wire ball;
splicing the inner bushing pipes, namely inserting the inner bushing pipes into the ends to be welded of the steel pipes, wherein the length of the inner bushing pipes is about 300mm, the length of the inner bushing pipes extending into the steel pipes is about 150mm, inserting clamping plates into clamping grooves formed in the middle of the inner bushing pipes, and inserting positioning steel bars into reserved holes in one ends of the steel pipes to fix the positions of the inner bushing pipes and the steel pipes;
welding, namely welding the steel pipe and the inner lining sleeve in an argon arc welding or electric arc welding mode, wherein the steel pipe and the inner lining sleeve are welded from two sides of the steel pipe during welding, after the two sides of the strip steel pipe are welded, the clamping plate is pulled out, the non-welded part of the steel pipe and the inner lining sleeve is subjected to repair welding, the height of a welding seam is required to be noticed during welding, and the height of the welding seam does not exceed the difference between the outer diameter of the inner lining sleeve and the inner diameter of the steel pipe;
splicing the steel pipes, namely sleeving the steel pipes to be spliced at the other end of the lining sleeve until one ends of the two steel pipes are attached to each other, and inserting positioning steel bars into the reserved holes to ensure that the positions between the steel pipes and the lining sleeve are fixed;
welding the steel pipes, namely welding the joint of the two steel pipes in an argon arc welding or arc welding mode, wherein the welding is carried out in a surrounding welding mode, and the difference between the height and width of a welding seam is noticed during welding;
seventhly, detecting ending, detecting the welding position of the steel pipe, firstly performing appearance detection, wherein the detection content comprises whether the welding seam is in smooth transition or not, whether the residual height of the welding seam and the width difference of the welding seam meet the standard or not, and extracting the positioning steel bar after the appearance detection is finished due to the defects of undercut, misalignment, air holes, slag inclusion, cracks and the like on the surface of the welding seam, and performing strength detection on the welding position, wherein the strength detection comprises tensile property detection and hardness detection.
2. The method for connecting and constructing the middle sleeve of the micro steel pipe pile sleeve in the limited space according to claim 1, wherein in the second step, when the steel pipe welding position has more rust, hydrochloric acid, hexamethyltetramine, sodium dodecyl benzene sulfonate and sodium chloride are mixed to form a rust remover, the welding end of the steel pipe is immersed into the rust remover, the rust on the surface of the steel pipe is removed, and after the rust removal is finished, the rust remover is erased by sponge and cotton cloth, so that the weld joint cleaning work can be finished.
3. The finite space micro steel pipe pile sleeve-in-sleeve connection construction method according to claim 2, wherein in the fourth step, the main welding process is as follows:
1) selecting welding rods, and selecting the welding rods with proper specifications according to the materials and the calibers of the steel pipe pile and the lining sleeve;
2) the welded junction is electrified and preheated, the steel pipe pile and the inner lining sleeve are electrified and heated in an electric heating mode, and the temperature of the welded junction of the steel pipe pile and the inner doped sleeve is detected by a temperature detector;
3) welding, namely welding the steel pipe pile and the inner bushing pipe in an argon arc welding or electric arc welding mode, and also welding in an argon arc welding bottoming and electric arc welding supplementing mode;
4) and detecting, namely detecting the welding opening after welding is finished, wherein the detection content is the same as the seventh step.
4. The connection construction method of the micro steel pipe pile sleeve in the limited space according to claim 3, wherein in the fifth step, before the positioning steel bar is inserted, attention should be paid to the fact that the opening of the lining sleeve corresponds to the steel pipe reserved hole, and attention should be paid to whether the end parts of the two steel pipes are attached or not.
5. The construction method for connecting the micro steel pipe pile sleeve in the limited space in the pile sleeve according to claim 4, wherein in the sixth step, the welding process is the same as the fourth step.
6. The method for connecting and constructing the middle sleeve of the finite space micro steel pipe pile sleeve according to claim 5, wherein in the seventh step, after the welding quality is detected to be qualified, an angle grinder is adopted to grind the welding line, the grinding standard is that the surface is smooth and has no bulge, and the welding line can be in smooth transition between two steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682890.5A CN114378412B (en) | 2021-12-31 | 2021-12-31 | Construction method for sleeve-in-sleeve connection of limited-space miniature steel pipe pile sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682890.5A CN114378412B (en) | 2021-12-31 | 2021-12-31 | Construction method for sleeve-in-sleeve connection of limited-space miniature steel pipe pile sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114378412A true CN114378412A (en) | 2022-04-22 |
| CN114378412B CN114378412B (en) | 2023-10-20 |
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| CN202111682890.5A Active CN114378412B (en) | 2021-12-31 | 2021-12-31 | Construction method for sleeve-in-sleeve connection of limited-space miniature steel pipe pile sleeve |
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|---|---|---|---|---|
| CN202881934U (en) * | 2012-11-20 | 2013-04-17 | 四川省交通运输厅公路规划勘察设计研究院 | Small-diameter steel pipe pile connection structure |
| CN104227197A (en) * | 2013-06-06 | 2014-12-24 | 天津港航安装工程有限公司 | Welding method and welding device for outer ring weld joints of steel pipe piles |
| CN107470846A (en) * | 2017-09-07 | 2017-12-15 | 中建五局第三建设有限公司 | A kind of device and welding method for facilitating steel-pipe welding |
| CN109794666A (en) * | 2018-12-24 | 2019-05-24 | 中铁隧道集团三处有限公司 | Vertical annular full-automatic welding procedure |
| KR20200092577A (en) * | 2019-01-25 | 2020-08-04 | 호남대학교 산학협력단 | Steel pipes for lifting settlement structure and constructing method thereof |
| CN112252307A (en) * | 2020-11-05 | 2021-01-22 | 中国建筑第四工程局有限公司 | Pile column structure for permanently-faced combined double-steel-pipe upright column pile |
| CN112276293A (en) * | 2020-10-29 | 2021-01-29 | 广船国际有限公司 | Tubular pile circumferential weld welding method |
| CN212665336U (en) * | 2020-07-06 | 2021-03-09 | 中建一局钢结构工程有限公司 | Pipe intersecting welding joint structure |
-
2021
- 2021-12-31 CN CN202111682890.5A patent/CN114378412B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202881934U (en) * | 2012-11-20 | 2013-04-17 | 四川省交通运输厅公路规划勘察设计研究院 | Small-diameter steel pipe pile connection structure |
| CN104227197A (en) * | 2013-06-06 | 2014-12-24 | 天津港航安装工程有限公司 | Welding method and welding device for outer ring weld joints of steel pipe piles |
| CN107470846A (en) * | 2017-09-07 | 2017-12-15 | 中建五局第三建设有限公司 | A kind of device and welding method for facilitating steel-pipe welding |
| CN109794666A (en) * | 2018-12-24 | 2019-05-24 | 中铁隧道集团三处有限公司 | Vertical annular full-automatic welding procedure |
| KR20200092577A (en) * | 2019-01-25 | 2020-08-04 | 호남대학교 산학협력단 | Steel pipes for lifting settlement structure and constructing method thereof |
| CN212665336U (en) * | 2020-07-06 | 2021-03-09 | 中建一局钢结构工程有限公司 | Pipe intersecting welding joint structure |
| CN112276293A (en) * | 2020-10-29 | 2021-01-29 | 广船国际有限公司 | Tubular pile circumferential weld welding method |
| CN112252307A (en) * | 2020-11-05 | 2021-01-22 | 中国建筑第四工程局有限公司 | Pile column structure for permanently-faced combined double-steel-pipe upright column pile |
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| Publication number | Publication date |
|---|---|
| CN114378412B (en) | 2023-10-20 |
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