WO2018072582A1 - Pile leg utilized in ju2000e self-elevating drilling platform, and method of installing pile shoe - Google Patents

Pile leg utilized in ju2000e self-elevating drilling platform, and method of installing pile shoe Download PDF

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Publication number
WO2018072582A1
WO2018072582A1 PCT/CN2017/102474 CN2017102474W WO2018072582A1 WO 2018072582 A1 WO2018072582 A1 WO 2018072582A1 CN 2017102474 W CN2017102474 W CN 2017102474W WO 2018072582 A1 WO2018072582 A1 WO 2018072582A1
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Prior art keywords
pile
section
leg
shoe
vertical plate
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PCT/CN2017/102474
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French (fr)
Chinese (zh)
Inventor
吴正峰
沈鹏鹏
季秋兵
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南通振华重型装备制造有限公司
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Publication of WO2018072582A1 publication Critical patent/WO2018072582A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0039—Methods for placing the offshore structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/006—Platforms with supporting legs with lattice style supporting legs

Definitions

  • the invention relates to the field of marine engineering and shipbuilding technology, in particular to a JU2000E jack-up drilling platform pile leg and pile shoe installation technology.
  • jack-up rigs are mainly used to explore oil and gas wells, but also for production wells, workover operations, and as drilling and mining platforms in early production.
  • the realization of these main functions depends mainly on For its special components such as pile legs, lifting systems, locking devices and cantilever beams.
  • the jack-up drilling rig is loaded with drilling machinery, power, equipment, living equipment and a number of legs that can be lifted and lowered.
  • drilling the pile boots at the bottom of the pile legs are bottomed, and the platform is lifted from the pile legs to a certain height of the sea surface;
  • the platform is lowered to the surface of the water, the legs are raised, and the platform is like a barge, which can be towed to a new well by a tug.
  • the pile legs are the key parts of the jack-up drilling platform.
  • the jack-up drilling platform is put into operation, the platform is lifted to the safe height above the sea surface by the lifting mechanism, and then the pile legs are inserted and piled boots are used. Support the entire platform.
  • the pile shoe segment is first positioned, then the main hull is closed, and then the first section of the pile leg is hoisted into the surrounding well section, and the pile shoe section is closed, and finally the pile leg is installed.
  • the bulk tube and the bulk board of the pile shoe are closed at the section.
  • the pile shoe section is first positioned, and the first section of the pile leg is divided into the sub-well section, and the pile shoe section is closed, and the closing is carried out in a narrow space of the trap section, and the pile leg is High-strength steel has poor construction environment, which is not conducive to welding, which increases the welding difficulty, reduces the welding quality, prolongs the working time, and affects the folding precision of the pile legs and pile shoes.
  • the technical problem to be solved by the present invention is to provide a segmented and closed method for the pile legs and pile shoes of the JU2000E type jack-up drilling platform which shortens the construction period and improves the welding quality and working efficiency.
  • the technical solution of the present invention is: a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology, and the innovation is as follows:
  • the pile leg section, the pile shoe section and the pile shoe vertical plate breaking board B are respectively prepared, and the pile legs are divided into several sections from bottom to top, and the bottom part is the first section of the pile leg, the pile boots
  • the first section has a pile shoe large vertical plate breaking plate A, the pile shoe large vertical plate breaking plate B and the broken plate A form a complete pile shoe vertical plate, and the pile shoe large vertical plate B is a pile shoe vertical plate a portion connected to the first section of the leg;
  • the first step of the pile leg and the pile vertical plate are closed.
  • the specific steps are: welding the pile shoe large vertical plate break B in the first section of the pile leg, and the single pile pile shoe vertical plate
  • the welding sequence of the broken plate B is 2-3 tracks on the first side of the welding; then the root is cleaned and polished to the base material, and the welding thickness is basically the same on both sides; the last two welders are symmetrically welded.
  • the bulk tube includes a horizontal strut, a first diagonal strut and a second diagonal strut, and the horizontal strut is horizontally installed between the two legs, the first diagonal strut One end of the second diagonal strut is welded to one end of the horizontal strut, and the other end is extended upwardly and fixed to the end of the upper horizontal strut.
  • the two diagonal struts are generally V-shaped.
  • step (3) the specific steps of the first section of the pile leg being hoisted into the surrounding section and the pile shoe section are closed:
  • the first section of the pile leg and the blind rack of the pile shoe are seamed and welded.
  • the order is as follows: firstly, one welder is welded to the side of 2-3; then the back is rooted and polished to the base metal. Whitening, the welding thickness is basically the same on both sides; the last two sides are symmetrically welded by two welders;
  • the first section of the pile leg is broken with the large vertical plate A of the pile shoe.
  • the order is as follows: firstly, three welders are arranged to weld 2-3 sides; then the back root is cleaned and polished to the base metal. Whitening, the welding thickness is basically the same on both sides; the last two sides of the welder are symmetrically welded.
  • the segmentation is carried out, and the original pile leg high-strength steel and the pile shoe vertical plate are closed, and the pile-shoe internal large-slab structure is closed, and the original pile leg pile shoe is closed at the place where the bulk tube is installed in the small space of the surrounding section.
  • Welding instead of welding on the offshore platform, improved the construction environment, provided superior space conditions for welding, improved welding quality and work efficiency.
  • the first section of the pile leg and the pile shoe are closed in five steps, specifically the arrangement of the tire frame, the first section of the pile leg, the installation of the pile shoe, the vertical plate breakage, the pile leg pile shoe closing, the bulk pipe installation, the pile leg
  • the first section is hoisted into the surrounding well and the pile shoe is partially closed, and the pile leg shoe is closed and the rib plate is installed.
  • the closing step is simple, the operation is easy, the closing efficiency is high, and the closing quality and work efficiency are improved.
  • the welding procedure of a single large vertical plate is to arrange three welders on the side of the welder 2-3 first; then the root is cleaned and polished to the base material, and the weld thickness is basically the same on both sides; the last two A total of six welders are symmetrically welded, and the welding sequence is adjusted to effectively control the welding deformation and improve the welding quality and welding efficiency.
  • Figure 1 is a schematic view of the JU2000E jack-up drilling platform with the legs and pile shoes partially closed.
  • FIG. 2 is a schematic view of a pile shoe vertical plate of a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology according to the present invention.
  • FIG. 3 is a schematic view of a pile leg hoisting into a trap of a JU2000E type jack-up drilling platform leg and pile shoe installation technology according to the present invention.
  • the invention discloses a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology, and the specific steps are as follows:
  • the pile leg section, the pile shoe section 2 and the pile shoe vertical plate breaking plate B31 are respectively prepared, and the pile legs are divided into several sections from bottom to top, and the bottom end is the first section of the pile leg 1,
  • the first section of the pile shoe has a pile shoe vertical plate breaking plate A, the pile shoe large vertical plate breaking plate B31 and the broken plate A form a complete pile shoe vertical plate 3, and the pile shoe large vertical plate B is a pile shoe large a portion of the riser 3 that is connected to the first section 1 of the leg;
  • the first section of the pile leg 1 is closed with the pile plate vertical plate breakage plate B. Firstly, the first section of the pile leg is trimmed, and the remaining amount of the pile shoe on the B31 of the pile shoe is broken. Leave a margin of 5mm, and wait until the pile legs and the pile shoes are partially closed.) Turn the pile legs into the 90° section. The first section of the pile is turned to the center perpendicularity ⁇ 5mm; the first section of the pile is 1 at the lower end.
  • the welding sequence is: firstly, three welders are arranged to weld 2-3 sides; then the back root is cleaned and polished to the base material, and the welding thickness is basically the same on both sides; the last two welders on both sides Symmetrical welding; the last pile leg pile shoe is partially closed at the bulk tube welding; the bulk tube includes a horizontal strut 42, a first diagonal strut 43 and a second diagonal strut 41, and the horizontal strut 42 is horizontally mounted on the two legs Between the first diagonal strut 43 and one end of the second diagonal strut 41, one end of the horizontal strut 42 is welded together, and the other end is upwardly extended and solidified.
  • two V-shaped diagonal strut 42 is horizontally mounted on the two legs between the first diagonal strut 43 and one end of the second diagonal strut 41, one end of the horizontal strut 42 is welded together, and the other end is upwardly extended and solidified.
  • two V-shaped diagonal strut 42 is horizontally mounted on the two legs
  • the welding sequence is to first arrange a welder to weld 2-3 sides; then the back is rooted and polished to the base material.
  • the welding thickness to the two sides is basically the same; the last two sides of the welder are symmetrically welded; then the first section of the pile leg is welded with the large vertical plate section B31 and the pile shoe section is divided into the first vertical plate section A.
  • the welder welds 2-3 sides of the welder; then the root is cleaned and polished to the base material, and the weld thickness is basically the same on both sides; the last two welders are symmetrically welded.
  • the original leg high-strength steel and the pile shoe vertical plate are closed, and the large vertical plate structure of the pile shoe is closed, and the original pile leg pile shoe is closed and the bulk pipe is welded in the narrow space of the surrounding section.
  • the offshore platform is loaded and welded to improve the construction environment, providing superior space conditions for welding and improving welding quality and work efficiency.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

A pile leg utilized in a JU2000E self-elevating drilling platform, and a method of installing a pile shoe. The method comprises: first, folding together a first section (1) of a pile leg and a large vertical plate section B (31) of a pile shoe, then hoisting the first section of the pile leg into a well segment to fold together the first section (1) and a pile shoe section (2) of the pile leg; wherein the step of folding together the first section (1) of the pile leg and the pile shoe specifically comprises: turning over the first section (1) of the pile leg; installing the large vertical plate section B of the pile shoe (31); installing, where the pile leg and the pile shoe are folded together, separately-installed tubes; and hoisting the first section (1) of the pile leg into the well and folding together the first section (1) and the pile shoe section (2).

Description

一种JU2000E型自升式钻井平台桩腿和桩靴安装技术 Installation technology of pile leg and pile shoe of JU2000E jack-up drilling platform 一种JU2000E型自升式钻井平台桩腿和桩靴安装技术Installation technology of pile leg and pile shoe of JU2000E jack-up drilling platform
技术领域Technical field
本发明涉及一种海洋工程及船舶建造技术领域，特别涉及一种JU2000E型自升式钻井平台桩腿和桩靴安装技术。The invention relates to the field of marine engineering and shipbuilding technology, in particular to a JU2000E jack-up drilling platform pile leg and pile shoe installation technology.
背景技术Background technique
在海洋油气资源开发过程中，自升式钻井平台主要用于打探油气井，也可用于打生产井、修井作业，也可作为早期生产中的钻采平台，这些主要功能的实现，主要依赖于其特殊部件如桩腿、升降系统、锁紧装置以及悬臂梁等的应用。In the development of marine oil and gas resources, jack-up rigs are mainly used to explore oil and gas wells, but also for production wells, workover operations, and as drilling and mining platforms in early production. The realization of these main functions depends mainly on For its special components such as pile legs, lifting systems, locking devices and cantilever beams.
自升式钻井平台上装载有钻井机械、动力、器材、居住设备以及若干可升降的桩腿，钻井时桩腿底部的桩靴着底，平台则沿桩腿升离海面一定高度；移位时平台降至水面，桩腿升起，平台就像驳船，可由拖轮把它拖移到新的井位。桩腿是自升式钻井平台的关键部位，当自升式钻井平台实施作业的时候，需通过升降机构将平台举升到海面以上安全高度，接着进行桩腿的插桩，并由桩靴来支撑整个平台。The jack-up drilling rig is loaded with drilling machinery, power, equipment, living equipment and a number of legs that can be lifted and lowered. When drilling, the pile boots at the bottom of the pile legs are bottomed, and the platform is lifted from the pile legs to a certain height of the sea surface; The platform is lowered to the surface of the water, the legs are raised, and the platform is like a barge, which can be towed to a new well by a tug. The pile legs are the key parts of the jack-up drilling platform. When the jack-up drilling platform is put into operation, the platform is lifted to the safe height above the sea surface by the lifting mechanism, and then the pile legs are inserted and piled boots are used. Support the entire platform.
目前自升式钻井平台桩腿与桩靴合拢时，桩靴分段先定位，然后主船体合拢，再吊装桩腿第一段进围阱分段，与桩靴分段合拢，最后安装桩腿桩靴分段合拢处的散装管及散装板。At present, when the pile leg of the jack-up drilling platform is closed with the pile shoe, the pile shoe segment is first positioned, then the main hull is closed, and then the first section of the pile leg is hoisted into the surrounding well section, and the pile shoe section is closed, and finally the pile leg is installed. The bulk tube and the bulk board of the pile shoe are closed at the section.
在采用上述方法合拢过程中，桩靴分段先定位，桩腿第一段进围阱分段，与桩靴分段合拢，其合拢是在围阱分段狭小的空间内进行，桩腿为高强度钢，施工环境差，不利于焊接，增加了焊接难度，降低了焊接质量，延长了工作时间，影响了桩腿与桩靴合拢精度。In the process of closing by the above method, the pile shoe section is first positioned, and the first section of the pile leg is divided into the sub-well section, and the pile shoe section is closed, and the closing is carried out in a narrow space of the trap section, and the pile leg is High-strength steel has poor construction environment, which is not conducive to welding, which increases the welding difficulty, reduces the welding quality, prolongs the working time, and affects the folding precision of the pile legs and pile shoes.
因此，急需研发一种施工环境好、方便焊接、合拢精度高、能够提高焊接质量和工作效率的自升式钻井平台桩腿与桩靴合拢方法势在必行。经检验有关文献，未发现与本发明相同或相似的技术方案。 Therefore, it is imperative to develop a self-elevating drilling platform leg and pile shoe closing method that is good in construction environment, convenient in welding, high in closing precision, and capable of improving welding quality and work efficiency. Upon examination of the relevant literature, no technical solutions identical or similar to the present invention have been found.
发明内容Summary of the invention
本发明要解决的技术问题是提供一种缩短工期，提高焊接质量和工作效率的JU2000E型自升式钻井平台桩腿和桩靴分段合拢方法。The technical problem to be solved by the present invention is to provide a segmented and closed method for the pile legs and pile shoes of the JU2000E type jack-up drilling platform which shortens the construction period and improves the welding quality and working efficiency.
为解决上述技术问题，本发明的技术方案为：一种JU2000E型自升式钻井平台桩腿和桩靴安装技术，其创新点在于：包括如下步骤：In order to solve the above technical problem, the technical solution of the present invention is: a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology, and the innovation is as follows:
（1）首先，分别制作桩腿分段、桩靴分段以及桩靴大立板断板B，桩腿自下而上依次分为若干段，最底端为桩腿第一段，桩靴第一段上具有桩靴大立板断板A，所述桩靴大立板断板B与断板A组成完整的桩靴大立板，且桩靴大立板B为桩靴大立板上与桩腿第一段连接的部分；(1) Firstly, the pile leg section, the pile shoe section and the pile shoe vertical plate breaking board B are respectively prepared, and the pile legs are divided into several sections from bottom to top, and the bottom part is the first section of the pile leg, the pile boots The first section has a pile shoe large vertical plate breaking plate A, the pile shoe large vertical plate breaking plate B and the broken plate A form a complete pile shoe vertical plate, and the pile shoe large vertical plate B is a pile shoe vertical plate a portion connected to the first section of the leg;
（2）其次，桩腿第一段与桩靴大立板断板B合拢，并将桩腿桩靴合拢处的散装管安装到位；(2) Secondly, the first section of the pile leg is closed with the pile vertical plate breakage plate B, and the bulk pipe at the position where the pile leg pile shoe is closed is installed;
（3）再次，将桩腿第一段吊装进围井分段与桩靴分段合拢。(3) Again, the first section of the pile leg is hoisted into the well section and the pile shoe section is closed.
进一步的，所述步骤（2）中桩腿第一段与桩靴大立板合拢具体步骤为：在桩腿第一段焊接安装桩靴大立板断板B，单块桩靴大立板断板B焊接顺序为首先焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊。Further, in the step (2), the first step of the pile leg and the pile vertical plate are closed. The specific steps are: welding the pile shoe large vertical plate break B in the first section of the pile leg, and the single pile pile shoe vertical plate The welding sequence of the broken plate B is 2-3 tracks on the first side of the welding; then the root is cleaned and polished to the base material, and the welding thickness is basically the same on both sides; the last two welders are symmetrically welded.
进一步的，所述步骤（2）中散装管包括水平撑杆、第一斜撑杆及第二斜撑杆，所述水平撑杆水平安装在两桩腿之间，所述第一斜撑杆与第二斜撑杆的一端共同焊接在水平撑杆中部一点，且另一端皆向上延伸，并固连在上部水平撑杆端部，两斜撑杆整体呈V字形。Further, in the step (2), the bulk tube includes a horizontal strut, a first diagonal strut and a second diagonal strut, and the horizontal strut is horizontally installed between the two legs, the first diagonal strut One end of the second diagonal strut is welded to one end of the horizontal strut, and the other end is extended upwardly and fixed to the end of the upper horizontal strut. The two diagonal struts are generally V-shaped.
进一步的，所述步骤（3）中桩腿第一段吊装进围井分段与桩靴分段合拢的具体步骤为：Further, in the step (3), the specific steps of the first section of the pile leg being hoisted into the surrounding section and the pile shoe section are closed:
（4）首先，修割桩腿第一段大立板断板B上的余量；复测桩靴水平≤3mm，桩靴大立板与地样线偏差≤2mm；(4) Firstly, trim the remaining amount on the first vertical plate break B of the pile leg; the level of the re-test pile is ≤ 3mm, and the deviation between the pile vertical plate and the ground line is ≤ 2mm;
（5）其次，桩腿第一段齿条板与桩靴盲齿条对接缝并焊接，顺序为：首先安排一名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共两名焊工对称施焊；(5) Secondly, the first section of the pile leg and the blind rack of the pile shoe are seamed and welded. The order is as follows: firstly, one welder is welded to the side of 2-3; then the back is rooted and polished to the base metal. Whitening, the welding thickness is basically the same on both sides; the last two sides are symmetrically welded by two welders;
（6）再次，桩腿第一段大立板断板B与桩靴分段大立板A焊接，顺序为：首先安排三名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊。(6) Again, the first section of the pile leg is broken with the large vertical plate A of the pile shoe. The order is as follows: firstly, three welders are arranged to weld 2-3 sides; then the back root is cleaned and polished to the base metal. Whitening, the welding thickness is basically the same on both sides; the last two sides of the welder are symmetrically welded.
本发明的优点在于：The advantages of the invention are:
（1）首先将桩腿第一段与桩靴大立板断板合拢，并将桩腿与桩靴分段合拢处的散装管装焊到位，然后再整体吊装进围井分段与桩靴分段进行合拢，由原来的桩腿高强钢与桩靴大立板合拢，改为桩靴内部大立板结构合拢，将原来桩腿桩靴合拢处散装管在围井分段狭小的空间内装焊，改为在海工平台进行装焊，改善了施工环境，为焊接提供了优越的空间条件，提高了焊接质量和工作效率。(1) Firstly, the first section of the pile leg is closed with the pile plate of the pile shoe, and the bulk pipe of the pile leg and the pile shoe section is welded in place, and then the whole section is hoisted into the well section and the pile shoe. The segmentation is carried out, and the original pile leg high-strength steel and the pile shoe vertical plate are closed, and the pile-shoe internal large-slab structure is closed, and the original pile leg pile shoe is closed at the place where the bulk tube is installed in the small space of the surrounding section. Welding, instead of welding on the offshore platform, improved the construction environment, provided superior space conditions for welding, improved welding quality and work efficiency.
（2）桩腿第一段与桩靴合拢分五步进行，具体为胎架布置、桩腿第一段翻身安装桩靴大立板断板、桩腿桩靴合拢处散装管安装、桩腿第一段吊装进围井与桩靴分段合拢、桩腿桩靴合拢处加强筋板安装。通过该五步骤即可完成桩腿第一段与桩靴的合拢，该合拢步骤简单，易操作，合拢效率高，提高了合拢质量和工作效率。(2) The first section of the pile leg and the pile shoe are closed in five steps, specifically the arrangement of the tire frame, the first section of the pile leg, the installation of the pile shoe, the vertical plate breakage, the pile leg pile shoe closing, the bulk pipe installation, the pile leg The first section is hoisted into the surrounding well and the pile shoe is partially closed, and the pile leg shoe is closed and the rib plate is installed. Through the five steps, the first section of the leg and the pile shoe can be closed, the closing step is simple, the operation is easy, the closing efficiency is high, and the closing quality and work efficiency are improved.
（3）焊接时，单块大立板焊接顺序为首先安排三名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊，焊接顺序的调整，有效控制了焊接变形，提高了焊接质量与焊接效率。(3) When welding, the welding procedure of a single large vertical plate is to arrange three welders on the side of the welder 2-3 first; then the root is cleaned and polished to the base material, and the weld thickness is basically the same on both sides; the last two A total of six welders are symmetrically welded, and the welding sequence is adjusted to effectively control the welding deformation and improve the welding quality and welding efficiency.
附图说明DRAWINGS
图1为JU2000E型自升式钻井平台桩腿和桩靴分段合拢后示意图。Figure 1 is a schematic view of the JU2000E jack-up drilling platform with the legs and pile shoes partially closed.
图2为本发明一种JU2000E型自升式钻井平台桩腿和桩靴安装技术的桩靴大立板示意图。2 is a schematic view of a pile shoe vertical plate of a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology according to the present invention.
图3为本发明一种JU2000E型自升式钻井平台桩腿和桩靴安装技术的桩腿吊装进围阱的示意图。3 is a schematic view of a pile leg hoisting into a trap of a JU2000E type jack-up drilling platform leg and pile shoe installation technology according to the present invention.
具体实施方式detailed description
本发明公开了一种JU2000E型自升式钻井平台桩腿和桩靴安装技术，具体步骤如下：The invention discloses a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology, and the specific steps are as follows:
（1）首先，分别制作桩腿分段、桩靴分段2以及桩靴大立板断板B31，桩腿自下而上依次分为若干段，最底端为桩腿第一段1，桩靴第一段1上具有桩靴大立板断板A，桩靴大立板断板B31与断板A组成完整的桩靴大立板3，且桩靴大立板B为桩靴大立板3上与桩腿第一段1连接的部分；(1) Firstly, the pile leg section, the pile shoe section 2 and the pile shoe vertical plate breaking plate B31 are respectively prepared, and the pile legs are divided into several sections from bottom to top, and the bottom end is the first section of the pile leg 1, The first section of the pile shoe has a pile shoe vertical plate breaking plate A, the pile shoe large vertical plate breaking plate B31 and the broken plate A form a complete pile shoe vertical plate 3, and the pile shoe large vertical plate B is a pile shoe large a portion of the riser 3 that is connected to the first section 1 of the leg;
（2）其次，桩腿第一段1与桩靴大立板断板B合拢，首先修割桩腿第一段1、桩靴合拢处桩靴大立板断板B31上的余量（预留5mm余量，待桩腿与桩靴分段合拢时修割）；将桩腿分段翻身90°桩腿第一段1翻身后中心垂直度≤5mm；桩腿第一段1下端三角尺寸13106.4+3mm（焊接收缩量）；然后划线确定桩靴大立板断板B31及散装管的安装位置，桩靴大立板断板B31定位垂直度≤3mm；将桩靴大立板断板B31装焊到位,焊接顺序为，首先安排三名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊；最后桩腿桩靴分段合拢处散装管装焊；散装管包括水平撑杆42、第一斜撑杆43及第二斜撑杆41，水平撑杆42水平安装在两桩腿之间，所述第一斜撑杆43与第二斜撑杆41的一端共同焊接在水平撑杆42中部一点，且另一端皆向上延伸，并固连在上部水平撑杆端部，两斜撑杆整体呈V字形；(2) Secondly, the first section of the pile leg 1 is closed with the pile plate vertical plate breakage plate B. Firstly, the first section of the pile leg is trimmed, and the remaining amount of the pile shoe on the B31 of the pile shoe is broken. Leave a margin of 5mm, and wait until the pile legs and the pile shoes are partially closed.) Turn the pile legs into the 90° section. The first section of the pile is turned to the center perpendicularity ≤ 5mm; the first section of the pile is 1 at the lower end. 13106.4+3mm (welding shrinkage amount); then scribe line to determine the installation position of the pile vertical plate breakage plate B31 and the bulk pipe, the vertical vertical plate of the pile shoe vertical plate B31 ≤ 3mm; the pile shoe large vertical plate broken plate B31 is welded in place, the welding sequence is: firstly, three welders are arranged to weld 2-3 sides; then the back root is cleaned and polished to the base material, and the welding thickness is basically the same on both sides; the last two welders on both sides Symmetrical welding; the last pile leg pile shoe is partially closed at the bulk tube welding; the bulk tube includes a horizontal strut 42, a first diagonal strut 43 and a second diagonal strut 41, and the horizontal strut 42 is horizontally mounted on the two legs Between the first diagonal strut 43 and one end of the second diagonal strut 41, one end of the horizontal strut 42 is welded together, and the other end is upwardly extended and solidified. In the upper horizontal end brace, two V-shaped diagonal strut whole;
（3）再次，将桩腿第一段1吊装进围井分段与桩靴分段2合拢，吊装前复测桩靴水平≤3mm，桩靴大立板3与地样线偏差≤2mm；首先修割桩腿第一段1大立板断板B31上的余量；待抬升框架结构与围井分段合拢结束，吊装桩腿第一段1进入围井分段与桩靴分段2合拢,首先焊接桩腿第一段1齿条板与桩靴盲齿条对接缝，焊接顺序为首先安排一名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共两名焊工对称施焊；然后焊接桩腿第一段大立板断板B31与桩靴分段大立板分段A焊接，顺序为首先安排三名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊。(3) Again, the first section of the pile leg 1 is hoisted into the well section and the pile shoe section 2 is closed, the level of the pile shoe before re-testing is ≤ 3 mm, and the deviation of the pile shoe vertical plate 3 and the ground sample line is ≤ 2 mm; Firstly, the remaining amount of the first vertical plate breakage plate B31 of the first section of the pile leg is trimmed; the frame structure to be lifted and the surrounding section are closed, and the first section of the hoisting pile leg enters the surrounding section and the pile shoe section 2 Close, firstly weld the first section of the leg and the 1st rack of the pile and the blind rack of the pile. The welding sequence is to first arrange a welder to weld 2-3 sides; then the back is rooted and polished to the base material. The welding thickness to the two sides is basically the same; the last two sides of the welder are symmetrically welded; then the first section of the pile leg is welded with the large vertical plate section B31 and the pile shoe section is divided into the first vertical plate section A. The welder welds 2-3 sides of the welder; then the root is cleaned and polished to the base material, and the weld thickness is basically the same on both sides; the last two welders are symmetrically welded.
将原来的桩腿高强钢与桩靴大立板合拢，改为桩靴内部大立板结构合拢，将原来桩腿桩靴合拢处散装管在围井分段狭小的空间内装焊，改为在海工平台进行装焊，改善了施工环境，为焊接提供了优越的空间条件，提高了焊接质量和工作效率。The original leg high-strength steel and the pile shoe vertical plate are closed, and the large vertical plate structure of the pile shoe is closed, and the original pile leg pile shoe is closed and the bulk pipe is welded in the narrow space of the surrounding section. The offshore platform is loaded and welded to improve the construction environment, providing superior space conditions for welding and improving welding quality and work efficiency.
以上显示和描述了本发明的基本原理和主要特征。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The basic principles and main features of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is only described in the foregoing description and the description of the present invention, without departing from the spirit and scope of the invention. Various changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

  1. 一种JU2000E型自升式钻井平台桩腿和桩靴安装技术，其特征在于：包括如下步骤：A JU2000E jack-up drilling platform pile leg and pile shoe installation technology, characterized in that it comprises the following steps:
    （1）首先，分别制作桩腿分段、桩靴分段以及桩靴大立板断板B，桩腿自下而上依次分为若干段，最底端为桩腿第一段，桩靴第一段上具有桩靴大立板断板A，所述桩靴大立板断板B与断板A组成完整的桩靴大立板，且桩靴大立板B为桩靴大立板上与桩腿第一段连接的部分；(1) Firstly, the pile leg section, the pile shoe section and the pile shoe vertical plate breaking board B are respectively prepared, and the pile legs are divided into several sections from bottom to top, and the bottom part is the first section of the pile leg, the pile boots The first section has a pile shoe large vertical plate breaking plate A, the pile shoe large vertical plate breaking plate B and the broken plate A form a complete pile shoe vertical plate, and the pile shoe large vertical plate B is a pile shoe vertical plate a portion connected to the first section of the leg;
    （2）其次，桩腿第一段与桩靴大立板断板B合拢，并将桩腿桩靴合拢处的散装管安装到位；(2) Secondly, the first section of the pile leg is closed with the pile vertical plate breakage plate B, and the bulk pipe at the position where the pile leg pile shoe is closed is installed;
    （3）再次，将桩腿第一段吊装进围井分段与桩靴分段合拢。 (3) Again, the first section of the pile leg is hoisted into the well section and the pile shoe section is closed.
  2. 根据权利要求1所述的一种JU2000E型自升式钻井平台桩腿和桩靴安装技术，其特征在于：所述步骤（2）中桩腿第一段与桩靴大立板合拢具体步骤为：在桩腿第一段焊接安装桩靴大立板断板B，单块桩靴大立板断板B焊接顺序为首先焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊。The invention relates to a JU2000E type jack-up drilling platform pile leg and pile shoe mounting technology according to claim 1, wherein the step (2) of the first leg of the pile leg and the pile shoe vertical plate are closed. : In the first section of the pile leg, the installation of the pile shoe, the vertical plate breaking plate B, the single piece pile shoe, the vertical plate breaking plate B welding sequence is the first welding side 2-3 roads; then the back rooting, grinding to the base material pan White, the welding thickness is basically the same on both sides; the last two sides of the welder are symmetrically welded.
  3. 根据权利要求1所述的一种JU2000E型自升式钻井平台桩腿和桩靴安装技术，其特征在于：所述步骤（2）中散装管包括水平撑杆、第一斜撑杆及第二斜撑杆，所述水平撑杆水平安装在两桩腿之间，所述第一斜撑杆与第二斜撑杆的一端共同焊接在水平撑杆中部一点，且另一端皆向上延伸，并固连在上部水平撑杆端部，两斜撑杆整体呈V字形。The jacking and pile shoe mounting technology of the JU2000E jack-up drilling platform according to claim 1, wherein the bulk tube in the step (2) comprises a horizontal strut, a first diagonal strut and a second a diagonal strut, the horizontal strut is horizontally installed between the two legs, and one end of the first diagonal strut and the second diagonal strut are welded together at a central portion of the horizontal strut, and the other end is upwardly extended, and The joint is fixed at the end of the upper horizontal strut, and the two diagonal struts are generally V-shaped.
  4. 根据权利要求1所述的一种JU2000E型自升式钻井平台桩腿和桩靴安装技术，其特征在于：所述步骤（3）中桩腿第一段吊装进围井分段与桩靴分段合拢的具体步骤为：The invention relates to a JU2000E type jack-up drilling platform pile leg and pile shoe installation technology according to claim 1, characterized in that: in the step (3), the first section of the pile leg is hoisted into the surrounding section and the pile shoe The specific steps for segmentation are:
    （4）首先，修割桩腿第一段大立板断板B上的余量；复测桩靴水平≤3mm，桩靴大立板与地样线偏差≤2mm；(4) Firstly, trim the remaining amount on the first vertical plate break B of the pile leg; the level of the re-test pile is ≤ 3mm, and the deviation between the pile vertical plate and the ground line is ≤ 2mm;
    （5）其次，桩腿第一段齿条板与桩靴盲齿条对接缝并焊接，顺序为：首先安排一名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共两名焊工对称施焊；(5) Secondly, the first section of the pile leg and the blind rack of the pile shoe are seamed and welded. The order is as follows: firstly, one welder is welded to the side of 2-3; then the back is rooted and polished to the base metal. Whitening, the welding thickness is basically the same on both sides; the last two sides are symmetrically welded by two welders;
    （6）再次，桩腿第一段大立板断板B与桩靴分段大立板A焊接，顺序为：首先安排三名焊工焊一侧2-3道；然后背面清根、打磨至母材泛白，焊至两侧焊厚基本相同；最后两侧共六名焊工对称施焊。(6) Again, the first section of the pile leg is broken with the large vertical plate A of the pile shoe. The order is as follows: firstly, three welders are arranged to weld 2-3 sides; then the back root is cleaned and polished to the base metal. Whitening, the welding thickness is basically the same on both sides; the last two sides of the welder are symmetrically welded.
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