WO2010137294A1 - 鋼管連結構造、鋼管連結方法及び継手部材 - Google Patents
鋼管連結構造、鋼管連結方法及び継手部材 Download PDFInfo
- Publication number
- WO2010137294A1 WO2010137294A1 PCT/JP2010/003486 JP2010003486W WO2010137294A1 WO 2010137294 A1 WO2010137294 A1 WO 2010137294A1 JP 2010003486 W JP2010003486 W JP 2010003486W WO 2010137294 A1 WO2010137294 A1 WO 2010137294A1
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- Prior art keywords
- steel pipe
- outer peripheral
- peripheral surface
- connection
- joint member
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
- E04B1/585—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with separate connection devices
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
- F16L13/0218—Welded joints having an inner or outer ring
- F16L13/0227—Welded joints having an inner or outer ring having an inner ring
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/10—Pipe-lines
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Definitions
- the present invention relates to a steel pipe connection structure, a steel pipe connection method, or a joint member.
- Patent Documents 1 and 2 Such connecting members are disclosed in Patent Documents 1 and 2.
- the connecting member disclosed in Patent Document 1 includes a tubular portion inserted into an end portion of a steel pipe, and a metal wire that defines a distance between the steel pipes to be connected. By filling the gap between the steel pipes with a welding material, Are connected.
- the connecting member disclosed in Patent Document 2 is a member that is screwed into an end portion of a steel pipe to be connected to connect the steel pipe.
- connection member disclosed in Patent Document 1 since the steel pipe is welded by butt welding with the welding posture being lateral, the workability is poor.
- the connecting member disclosed in Patent Document 2 when screwing into the end portion of the steel pipe, dirt or the like enters the screwing portion and screwing becomes difficult or screwing becomes impossible, resulting in poor workability. In particular, since underpinning is performed on the foundation of an existing building, the work space is very limited, the welding environment is poor, and high workability is required.
- the connecting the steel pipe if the axis of the steel pipe to be connected is shifted, or if the welding of the connecting portion is insufficient, the transmission of the axial force is reduced.
- an object of the present invention is to provide a steel pipe connection structure, a steel pipe connection method, or a joint member that exhibits high workability. It is another object of the present invention to provide a steel pipe connection structure, a steel pipe connection method, or a joint member that prevents a reduction in axial force transmission of the connected steel pipe groups.
- the steel pipe connection structure has the following configuration. That is, A steel pipe connection structure in which a first steel pipe and a second steel pipe are connected by a joint member,
- the joint member is A first connecting portion inserted into an end of the first steel pipe;
- a second connecting portion inserted into an end of the second steel pipe;
- a flange that is located between the first connection portion and the second connection portion, and projects outward from the outer peripheral surface of the first steel pipe and the outer peripheral surface of the second steel pipe;
- the outer peripheral edge of the end of the first steel pipe and the first steel pipe side plane of the flange are welded to connect the first steel pipe and the joint member. Since the flange portion protrudes from the outer peripheral surface of the first steel pipe, the welding between the outer peripheral edge of the first steel tube and the first steel pipe side plane of the flange portion is so-called fillet welding. Similarly, in the second steel pipe opposite to the first steel pipe, the outer peripheral edge of the second steel pipe and the second steel pipe side plane of the flange portion are so-called fillet welds. Thereby, since welding of a 1st steel pipe and a 2nd steel pipe can be not a butt welding but a fillet welding in which a welding attitude is downward, welding becomes easy and high workability is obtained.
- FIG. 6 It is a disassembled perspective view of the steel pipe connection structure 1 which is an Example of this invention. 6 is a bottom view of the joint member 4. FIG. It is a figure explaining the connection method in the steel pipe connection structure 1. FIG. It is a figure which shows the notches 441, 442, and 443. FIG.
- the first steel pipe and the second steel pipe are connected by a joint member.
- the material, diameter, thickness and the like of the first steel pipe and the second steel pipe are not particularly limited, and steel pipes having a desired material, diameter, and thickness can be used. Further, the first steel pipe and the second steel pipe may have different materials, diameters, or wall thicknesses.
- the first steel pipe and the second steel pipe are generally cylindrical. The lengths of the first steel pipe and the second steel pipe are not limited, and a steel pipe having a desired length can be used as the first steel pipe and the second steel pipe.
- the joint member includes a first connection part inserted into the end of the first steel pipe, a second connection part inserted into the end of the second steel pipe, a first connection part, and a second connection part. It is located between a connection part and the collar part which protrudes outside the outer peripheral surface of a 1st steel pipe and the outer peripheral surface of a 2nd steel pipe is provided.
- the first connection portion and the second connection portion function as a backing during welding.
- the shape of the first connecting portion can be a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the end portion of the first steel pipe, or a part of the cylindrical shape.
- the second connection portion can be formed in the same manner as the first connection portion. If the second connecting portion has the same shape as the first connecting portion, the joint member can be used without distinguishing between the first connecting portion and the second connecting portion, so that handling becomes easy and workability is further improved.
- the joint member includes a flange projecting outward from the outer peripheral surface of the first steel pipe and the outer peripheral surface of the second steel pipe between the first connection portion and the second connection portion.
- the shape of the collar portion is not particularly limited, and can be, for example, a substantially disk shape that is slightly larger than the outer peripheral surface of the first steel pipe.
- the size of the flange is a shape that secures the first steel pipe side plane to be welded to the outer peripheral edge of the end of the first steel pipe and the second steel pipe side plane to be welded to the outer peripheral edge of the end of the second steel pipe.
- the flange projects perpendicularly to the outer peripheral surface of the first steel pipe and the outer peripheral surface of the second steel pipe. This is because welding between the outer peripheral edge of the end of the first steel pipe and the first steel pipe side plane and welding between the outer peripheral edge of the end of the second steel pipe and the second steel pipe side plane are facilitated.
- the flange portion of the joint member has a notch.
- the notch wall surface is located on the same surface as the outer peripheral surface of the first steel pipe or inside the outer peripheral surface of the first steel pipe.
- the notch is formed from the outer periphery of the collar portion toward the inside.
- the shape of the notch is not particularly limited, but the shape in plan view may be a semicircular shape, a partial elliptical shape, a rectangular shape, a triangular shape, or a combination thereof.
- the buttocks may be provided with a plurality of notches.
- the plurality of notches may have the same shape, or may include a plurality of types of shapes.
- the plurality of notches are preferably arranged symmetrically with respect to the center of the collar portion.
- the second aspect of the present invention includes a first connection portion inserted into an end portion of the first steel pipe, a second connection portion inserted into an end portion of the second steel pipe, a first connection portion, and a second connection portion.
- the flange includes a notch, and the wall surface of the notch is on the same surface as the outer peripheral surface of the first steel pipe or on the inner side of the outer peripheral surface of the first steel pipe. Position the contact member against the outer peripheral surface of the first steel pipe and the outer peripheral surface of the first steel pipe across the notch so that the peripheral surface of the first steel pipe and the peripheral surface of the second steel pipe are flush with each other. It is preferable that the method further includes an arrangement step of arranging in a sequence. Thereby, since the linearity of a 1st steel pipe and a 2nd steel pipe increases, the fall of the transmissibility of the axial force in the steel pipe group connected is prevented.
- 3rd aspect of this invention is a coupling member which connects a 1st steel pipe and a 2nd steel pipe, Comprising: The 1st connection part inserted in the edge part of a 1st steel pipe, and it inserts in the edge part of a 2nd steel pipe And a flange that is positioned between the first connection portion and the second connection portion and projects outward from the outer peripheral surface of the first steel pipe and the outer peripheral surface of the second steel pipe. It is a member. Examples of the present invention will be described in detail below.
- FIG. 1 shows an exploded perspective view of a steel pipe connection structure 1 according to an embodiment of the present invention.
- the steel pipe connection structure 1 is used for underpinning.
- the steel pipe connection structure 1 includes a first steel pipe 2, a second steel pipe 3, and a joint member 4.
- the shapes of the first steel pipe 2 and the second steel pipe 3 are cylindrical shapes having an outer diameter of about 114 mm, an inner diameter of about 102 mm, and a height of about 500 mm.
- the joint member 4 includes a first connection part 41, a second connection part 42, and a flange part 43.
- the first connection part 41 and the second connection part 42 are cylinders having an outer diameter of about 100 mm and a height of about 50 mm, and the first connection part 41 and the second connection part 42 are arranged with the axis L as the axis.
- the flange portion 43 is provided between the first connection portion 41 and the second connection portion 42.
- the shape of the collar portion 43 is a substantially disk shape having a diameter of about 130 mm in plan view.
- Four notches 44 are formed on the outer edge portion of the flange portion 43.
- the bottom view of the joint member 4 is shown in FIG.
- the state with which the 1st steel pipe 2 was connected was shown with the broken line.
- four notches 44 are formed in the outer edge portion of the flange portion 43.
- the notches 44 are arranged at intervals of 90 degrees about the axis L.
- the shape of the notch 44 is a substantially semicircular shape in plan view, and a part of the wall surface 44 a is located on the inner side (that is, on the axis L side) than the outer peripheral surface 21 of the first steel pipe 2.
- the flange 43 protrudes outward from the first steel pipe 2, and the outer peripheral surface 43 a of the flange 43 is located outside the outer peripheral surface 21 of the first steel pipe 2.
- FIG. 3A is a view for explaining the connection method by a cross-sectional view taken along the line AA in FIG.
- the first connection portion 41 of the joint member 4 is inserted into the end portion of the first steel pipe 2, and the end surface 22 of the end portion of the first steel pipe 2 is the first connection portion 41 of the flange portion 43. It is made to contact
- the outer peripheral surface 21 at the end of the first steel pipe 2 and the first steel pipe 2 side plane 45 of the flange 43 are welded together with the welding material 51, as indicated by the symbol P. Thereby, the joint member connection steel pipe 10 is formed.
- the second connection portion 42 is inserted into the end portion of the second steel pipe 3, and the end surface 32 of the end portion of the second steel pipe 3 is the flat plate portion on the second connection portion 42 side of the flange portion 43. 46 abuts.
- the abutting member 6 is brought into contact with the outer peripheral surface 21 of the first steel pipe 2 and the outer peripheral surface 31 of the second steel pipe 3 so as to straddle the notch 44.
- the abutting member 6 has a rod shape, and the shape in plan view is smaller than the outer shape of the notch 44, and the contact surface 61 with the outer peripheral surface 21 of the first steel pipe 2 is a flat surface. Thereby, the outer peripheral surface 21 of the first steel pipe 2 and the outer peripheral surface 31 of the second steel pipe 3 are flush with each other, the axis L1 with the first steel pipe 2 and the axis L2 with the second steel pipe 3 coincide, The 1 steel pipe 2 and the 2nd steel pipe 3 will be arranged in a straight line.
- the joint member connection steel pipe 10 is formed in advance in a factory or the like by the above-described method, and the second steel pipe 3 is formed by the above-described method at the construction site where the steel pipe connection structure 1 is used.
- the joint member connecting steel pipe 10 is connected. Thereby, what is necessary is just to attach the 2nd steel pipe 3 to the 2nd connection part 42, and to weld with the outer peripheral surface 31 and the 2nd steel pipe 3 side plane 46 at a construction site.
- welding between the outer peripheral surface 31 and the second steel pipe 3 side plane 46 is fillet welding with the welding posture downward, so that welding becomes easy and high workability can be obtained.
- the steel pipe connection structure 1 of the present embodiment since the first steel pipe 2 and the second steel pipe 3 are connected by the abutting member 6 in a state where the linearity is high, it is possible to prevent the transmission of axial force from being lowered. Moreover, according to the steel pipe connection structure 1 of the present embodiment, even when a plurality of relatively short steel pipes are connected, a steel pipe group having high linearity can be formed, and the axial force transmission in the connected steel pipe group can be formed. Is prevented. Moreover, since the steel pipe connection structure 1 of a present Example is not what connects the 1st steel pipe 2, the 2nd steel pipe 3, and the coupling member 4 by screwing together, dirt etc. penetrate
- the joint member 4 used in the steel pipe coupling structure 1 of the present embodiment is composed of a disk-shaped flange portion 43, a cylindrical first connection portion 41 and a second connection portion 42, and is simple. Since it consists of a simple structure, it is advantageous in terms of manufacturing cost.
- the second steel pipe 3 is also connected to the second steel pipe 2 in the same manner as the first steel pipe 2 on the side opposite to the side connected to the first steel pipe 2 in advance.
- the third steel pipe may be connectable by using a steel pipe.
- the formed steel pipe group can be press-fitted to a desired depth.
- the abutting member 6 is brought into contact after the second connection portion 42 of the joint member 4 is inserted into the second steel pipe 3, but before the second connection portion 42 is inserted into the second steel pipe 3.
- the second connecting portion 42 of the joint member 4 may be inserted into the second steel pipe 3 so that the abutting member 6 abuts the outer peripheral surface 31 of the second steel pipe 3 along the abutting surface 61 of the abutting member 6.
- the abutting member 6 was removed before welding the outer peripheral surface 31 of the end of the second steel pipe 3 and the second steel pipe 3 side plane 46 of the flange 43, The contact member 6 may be removed after the welding.
- the shape of the notch 44 provided in the flange portion 43 is a substantially semicircular shape in plan view, but is not limited thereto.
- notches 441, 442, and 443 provided in the collar portion 43 are shown in FIGS. 4A to 4C, respectively.
- the shape in plan view is a sector shape, and a part of the wall surface 441 a of the notch 441 is located inside the outer peripheral surface 21 of the first steel pipe 2.
- the plan view shape is substantially triangular, and a part of the wall surface 442 a of the notch 442 is located inside the outer peripheral surface 21 of the first steel pipe 2.
- the shape in plan view is a substantially semicircular shape, and further, the region near the outer peripheral portion 43a (outer peripheral portion vicinity region 443b) of the flange portion 43 becomes narrower as it approaches the outer peripheral portion 43a. Further, a part of the wall surface 443 a of the notch 443 is located inside the outer peripheral surface 21 of the first steel pipe 2. According to the notch 443, in the state where the contact member 6 is in contact, the outer peripheral portion vicinity region 443b is caught by the contact member 6, and the contact member 6 can be prevented from being inadvertently dropped.
- the present invention is not limited to the description of the embodiments and examples of the invention described above. Various modifications may be included in the present invention as long as those skilled in the art can easily conceive without departing from the description of the scope of claims.
- the steel pipe connection structure, the steel pipe connection method, and the joint member of the present invention are used when connecting steel pipes.
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Abstract
Description
そこで本発明は、高い作業性を奏する鋼管連結構造、鋼管連結方法、又は継手部材を提供することを目的の一つとする。また、連結された鋼管群の軸力の伝達性の低下が防止される鋼管連結構造、鋼管連結方法、又は継手部材を提供することを目的の一つとする。
第1鋼管と第2鋼管とを継手部材により連結してなる鋼管連結構造であって、
前記継手部材は、
前記第1鋼管の端部に挿入される第1接続部と、
前記第2鋼管の端部に挿入される第2接続部と、
前記第1接続部と前記第2接続部との間に位置し、前記第1鋼管の外周面及び前記第2鋼管の外周面よりも外側に突出する鍔部と、
を備え、
前記第1鋼管の端部に前記第1接続部を挿入した状態において、前記第1鋼管の端部の外周縁と前記鍔部の前記第1鋼管側平面とが溶接され、
前記第2鋼管の端部に前記第2接続部を挿入した状態において、前記第2鋼管の端部の外周縁と前記鍔部の前記第2鋼管側平面とが溶接される、
鋼管連結構造である。
以下本発明の実施例について、より詳細に説明する。
この発明は、上記発明の実施の形態及び実施例の説明に何ら限定されるものではない。特許請求の範囲の記載を逸脱せず、当業者が容易に想到できる範囲で種々の変形態様もこの発明に含まれる。
10 継手部材連結鋼管
2 第1鋼管
21 外周面
3 第2鋼管
31 外周面
4 継手部材
41 第1接続部
42 第2接続部
43 鍔部
44、441、442、443 切り欠き
6 当て部材
Claims (7)
- 第1鋼管と第2鋼管とを継手部材により連結してなる鋼管連結構造であって、
前記継手部材は、
前記第1鋼管の端部に挿入される第1接続部と、
前記第2鋼管の端部に挿入される第2接続部と、
前記第1接続部と前記第2接続部との間に位置し、前記第1鋼管の外周面及び前記第2鋼管の外周面よりも外側に突出する鍔部と、
を備え、
前記第1鋼管の端部に前記第1接続部を挿入した状態において、前記第1鋼管の端部の外周縁と前記鍔部の前記第1鋼管側平面とが溶接され、
前記第2鋼管の端部に前記第2接続部を挿入した状態において、前記第2鋼管の端部の外周縁と前記鍔部の前記第2鋼管側平面とが溶接される、
鋼管連結構造。 - 前記鍔部は切り欠きを備え、前記第1鋼管の端部に前記第1接続部を挿入した状態において、該切り欠きの壁面が前記第1鋼管の外周面と同一面上又は前記第1鋼管の外周面よりも内側に位置する、ことを特徴とする請求項1に記載の鋼管連結構造。
- 第1鋼管の端部に挿入される第1接続部と、第2鋼管の端部に挿入される第2接続部と、前記第1接続部と前記第2接続部との間に位置し、前記第1鋼管の外周面及び前記第2鋼管の外周面よりも外側に突出する鍔部と、を備える継手部材の前記第1接続部を、予め前記第1鋼管に挿入してなる継手部材連結鋼管を準備し、施工現場において該継手部材連結鋼管の前記第2接続部を前記第2鋼管に挿入する接続工程と、
前記第2鋼管の端部の外周縁と前記鍔部の前記第2鋼管側平面とを溶接する溶接工程と、
を含む鋼管連結方法。 - 前記鍔部は切り欠きを備え、該切り欠きの壁面が前記第1鋼管の外周面と同一面上又は前記第1鋼管の外周面よりも内側に位置し、
前記切り欠きを跨いで前記第1鋼管の外周面と前記第1鋼管の外周面とに当て部材を当接させて前記第1鋼管の周面と前記第2鋼管の周面とが面一となるように配列する配列工程を更に含む請求項3に記載の鋼管連結方法。 - 第1鋼管と第2鋼管とを連結する継手部材であって、
前記第1鋼管の端部に挿入される第1接続部と、
前記第2鋼管の端部に挿入される第2接続部と、
前記第1接続部と前記第2接続部との間に位置し、前記第1鋼管の外周面及び前記第2鋼管の外周面よりも外側に突出する鍔部と、
を備える継手部材。 - 前記鍔部は切り欠きを備え、前記第1鋼管の端部に前記第1接続部を挿入した状態において、該切り欠きの壁面が前記第1鋼管の外周面と同一面上又は前記第1鋼管の外周面よりも内側に位置する、ことを特徴とする請求項5に記載の継手部材。
- 前記鍔部は前記切り欠きを複数備え、該複数の切り欠きは前記鍔部の中心を基準として対称に配置される、ことを特徴とする請求項5又は6に記載の継手部材。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114703867A (zh) * | 2022-04-24 | 2022-07-05 | 深圳市工勘岩土集团有限公司 | 支撑受限区钢管桩快速连接施工方法 |
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JPS4528035Y1 (ja) * | 1966-08-08 | 1970-10-28 | ||
JPS5781543A (en) * | 1980-11-05 | 1982-05-21 | Hitachi Metals Ltd | Metal fitting for connecting pillar |
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- 2010-05-25 JP JP2011515885A patent/JP5416208B2/ja active Active
- 2010-05-25 WO PCT/JP2010/003486 patent/WO2010137294A1/ja active Application Filing
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CN114703867A (zh) * | 2022-04-24 | 2022-07-05 | 深圳市工勘岩土集团有限公司 | 支撑受限区钢管桩快速连接施工方法 |
CN114703867B (zh) * | 2022-04-24 | 2024-04-26 | 深圳市工勘岩土集团有限公司 | 支撑受限区钢管桩快速连接施工方法 |
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JP5416208B2 (ja) | 2014-02-12 |
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