WO2021232480A1 - 一种大直径hdpe管道海上系泊定位方法 - Google Patents
一种大直径hdpe管道海上系泊定位方法 Download PDFInfo
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- WO2021232480A1 WO2021232480A1 PCT/CN2020/093325 CN2020093325W WO2021232480A1 WO 2021232480 A1 WO2021232480 A1 WO 2021232480A1 CN 2020093325 W CN2020093325 W CN 2020093325W WO 2021232480 A1 WO2021232480 A1 WO 2021232480A1
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- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/235—Apparatus for controlling the pipe during laying
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- the invention relates to the fields of port engineering, traffic engineering, water conservancy engineering, and highway engineering, in particular to a method for marine mooring and positioning of large-diameter HDPE pipelines.
- HDPE pipes High-density polyethylene pipes
- water supply (diversion) systems water supply systems
- drainage systems drainage systems
- gas transportation gas transportation
- the pipeline needs to be moored and positioned before sinking, so that the pipeline is accurately parked above the base tank and kept straight.
- the HDPE pipeline mooring positioning technology is still limited to small diameter pipe sections (below 630mm).
- the application of large diameter HDPE pipeline is bound to be more extensive. Therefore, it is urgent to develop an offshore mooring suitable for large diameter HDPE pipelines. Positioning method.
- the purpose of the present invention is to provide a large-diameter HDPE pipeline offshore mooring positioning method that is easy to operate, has a high safety factor, and has low requirements for ship machinery and equipment.
- a method for marine mooring and positioning of large-diameter HDPE pipelines including pipe sections, positioning steel pipe piles, fixed-length cables, wind-proof cables and barges, and includes the following steps:
- a plurality of pull lugs are provided on the positioning steel pipe pile, and the length of the fixed-length cable is determined according to the distance between the positioning steel pipe pile and the foundation groove.
- step S2 a vibrating hammer is used in conjunction with a positioning frame to carry out the pile-sinking construction of the positioning steel pipe pile.
- GPS is used to guide the initial positioning of the barge, and then the positioning frame is accurately measured, and the barge anchor cable is retracted and positioned, and then the positioning steel pipe pile is passed through the positioning frame, and the pile sinking construction is completed.
- step S3 the hoist on the barge tightens the wire rope to pull the pipe section into position.
- step S4 the pipe section is moved to the upper side of the foundation groove and kept straight, and the two ends of the fixed-length cable are respectively towed to the pipe section and the positioning steel pipe pile by the anchor boat. Tether the cable at a fixed position.
- this large-diameter HDPE pipeline offshore mooring positioning method uses general simple equipment such as positioning steel pipe piles, fixed-length cables, wind-proof cables, and barges to complete the offshore mooring positioning of the pipe section, and push it by the pipe section.
- realize the rope tying which is suitable for the positioning operation of large-diameter high-density polyethylene pipes before filling and sinking. It is suitable for various water depths. It has low requirements on ship machinery and requires a small number of operators.
- Fig. 1 is a schematic diagram of pipe section placement in an embodiment of the present invention
- Fig. 2 is a schematic diagram of fixing a fixed-length cable according to an embodiment of the present invention
- Fig. 3 is a schematic diagram of mooring positioning according to an embodiment of the present invention.
- orientation description involved such as up, down, front, back, left, right, etc. indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, but In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be configured and operate in a specific orientation, and therefore cannot be understood as a limitation to the present invention.
- a large-diameter HDPE pipeline offshore mooring positioning method including pipe section 100, positioning steel pipe pile 200, fixed-length cable 300, wind-proof cable 400 and barge 500, which includes the following steps:
- S1 Determine the number and spacing of the positioning steel pipe piles 200 and the length of the fixed-length cable 300;
- the steel pipe pile 200 is provided with a number of pull lugs, the number and spacing of which are reasonably determined according to the length of the pipe section 100, and the length of the fixed-length cable 300 is determined according to the distance between the positioning steel pipe pile 200 and the foundation groove 600.
- Position steel pipe piles 200 along the base trough 600 at 15m outside the slope toe, with an interval of 80m. GPS is used to guide the initial positioning of the barge 500, and then the positioning frame is accurately measured.
- the anchor cable of the barge 500 is retracted in a small range for precise positioning, and then the positioning steel pipe pile 200 is passed through the positioning frame to complete the positioning of the positioning steel pipe pile 200 and start the pile sinking construction.
- GPS continuously re-measured the pile position to check and adjust, and complete the pile sinking construction.
- the barge 500 is anchored in advance and positioned about 100m away from the pipe head. After the pipe section 100 enters the installation area, the tugboat continues to tow the pipe section 100 until the tugboat is about 90m away from the barge 500.
- the hoist wire rope of the barge 500 is used to tether the pipe head and tow it in place.
- the fixed-length cable 300 on both sides is tied. After the fixed-length cable 300 is tied, the anchor boat 700 is used to push the pipe from the upper side to the lower side until The upper fixed-length cable 300 is completely tightened, and the windproof cable 400 derived from the lower positioning steel pipe pile 200 is hung to the preset position of the pipe section 100 to complete the mooring positioning.
- This large-diameter HDPE pipeline offshore mooring positioning method uses general simple equipment such as positioning steel pipe piles 200, fixed-length cables 300, windproof cables 400, and barges 500 to complete the offshore mooring positioning of the pipe section 100, and use the pipe section 100 to push it.
- Realize the rope tying which is suitable for the positioning operation of large-diameter high-density polyethylene pipes before filling and sinking. It is suitable for various water depths. It has low requirements on ship machinery and requires a small number of operators.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
一种大直径HDPE管道海上系泊定位方法,利用定位钢管桩(200)、定长缆绳(300)、防风缆绳(400)以及驳船(500)等通用简易设备即可以完成管段(100)的海上系泊定位,并顶推管段(100)实现缆绳系挂,适用于大直径高密度聚乙烯管道灌水沉放前的定位作业,适用于各种水深,对船机设备要求低,所需操作人员数量较少,可用于港口工程、交通工程、水利工程、公路工程领域。
Description
本发明涉及港口工程、交通工程、水利工程、公路工程领域,特别是涉及一种大直径HDPE管道海上系泊定位方法。
高密度聚乙烯管(以下简称HDPE管)广泛应用于给(引)水系统、排水系统和燃气输送等多个领域。HDPE管线到达待安装位置后,海上的风浪作用会使管段发生漂移和弯曲、甚至破坏,影响管道的下潜沉放等后续施工。因此,沉放前需要对管道进行系泊定位,使管道准确地停放在基槽上方并保持顺直。
目前HDPE管线系泊定位工艺仍局限于小直径管段(630mm以下),随着经济的发展,大直径HDPE管线的应用势必更加广泛,因此亟需研发一种适用于大直径HDPE管道的海上系泊定位方法。
发明内容
本发明的目的在于提供一种易于操作、安全系数高、对船机设备要求较低的大直径HDPE管道海上系泊定位方法。
本发明所采取的技术方案是:
一种大直径HDPE管道海上系泊定位方法,包括管段、定位钢管桩、定长缆绳、防风缆绳以及驳船,其包括以下步骤:
S1:确定定位钢管桩数量、间距及定长缆绳长度;
S2:对所述定位钢管桩进行沉桩施工;
S3:浮运管段至基槽位置,由驳船抛锚并牵引管段的管头浮运到位;
S4:水平移动所述管段到基槽上侧,使所述管段偏离基槽,系挂两侧定长缆绳在定位钢管桩上;
S5:将所述管段向基槽下侧顶推,使上侧的定长缆绳收紧;
S6:系挂由下侧的定位钢管桩引出的防风缆绳,系挂定位完成。
进一步作为本发明技术方案的改进,所述定位钢管桩上设有若干拉耳,所述定长缆绳长度根据定位钢管桩与基槽距离确定。
进一步作为本发明技术方案的改进,在步骤S2中,使用振动锤配合定位架对定位钢管桩进行沉桩施工。
进一步作为本发明技术方案的改进,利用GPS引导驳船初定位,再对定位架精测,通过驳船锚缆收放定位,再将所述定位钢管桩穿过定位架,并完成沉桩施工。
进一步作为本发明技术方案的改进,在步骤S3中,所述驳船上的卷扬机收紧钢丝绳将管段牵引到位。
进一步作为本发明技术方案的改进,在步骤S4中,所述管段移动至基槽上侧后保持顺直,所述定长缆绳两端通过锚艇将两端分别牵引至管段和定位钢管桩固定位置处系缆。
本发明的有益效果:此大直径HDPE管道海上系泊定位方法,利用定位钢管桩、定长缆绳、防风缆绳以及驳船等通用简易设备即可以完成管段的海上系泊定位,并以管段顶推实现缆绳系挂,适用于大直径高密度聚乙烯管道灌水沉放前的定位作业,适用于各种水深,对船机设备要求低,所需操作人员数量较少。
下面结合附图对本发明作进一步说明:
图1为本发明实施例管段入位示意图;
图2为本发明实施例定长缆绳系挂示意图;
图3为本发明实施例系泊定位示意图。
本部分将详细描述本发明的具体实施例,本发明之较佳实施例在附图中示出,附图的作用在于用图形补充说明书文字部分的描述,使人能够直观地、形象地理解本发明的每个技术特征和整体技术方案,但其不能理解为对本发明保护范围的限制。
在本发明的描述中,需要理解的是,涉及到方位描述,例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
在本发明的描述中,若干的含义是一个或者多个,多个的含义是两个以上,大于、小于、超过等理解为不包括本数,以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中,除非另有明确的限定,设置、安装、连接等词语应做广义理解,所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
参照图1-图3,一种大直径HDPE管道海上系泊定位方法,包括管段100、定位钢管桩200、定长缆绳300、防风缆绳400以及驳船500,其包括以下步骤:
S1:确定定位钢管桩200数量、间距及定长缆绳300长度;
S2:使用振动锤配合定位架对定位钢管桩200进行沉桩施工;
S3:浮运管段100至基槽600位置,由驳船500抛锚并牵引管段100的管头浮运到位;
S4:水平移动管段100到基槽600上侧,使管段100偏离基槽600,系挂两侧定长缆绳300在定位钢管桩200上;
S5:将管段100向基槽600下侧顶推,使上侧的定长缆绳300收紧;
S6:系挂由下侧的定位钢管桩200引出的防风缆绳400,系挂定位完成。
更具体地,钢管桩200上设有若干拉耳,其数量和间距根据管段100长度合理确定,定长缆绳300长度根据定位钢管桩200与基槽600距离确定。采用驳船500配履带吊挂振动锤进行沉桩施工,定位钢管桩200沿基槽600两侧坡脚外15m设置,间距80m,利用GPS引导驳船500初定位,再对定位架精测,通过驳船500锚缆小幅度收放精确定位,再将定位钢管桩200穿过定位架,完成定位钢管桩200定位,并开始沉桩施工。在沉桩过程中,GPS不断复测桩位进行校核调整,完成沉桩施工。利用拖船牵引管段100浮运至安装位置,驳船500提前抛锚定位于距离管头约100m的位置,待管段100进入安装区域后,拖船继续对管段100进行拖带,直至拖船距离驳船500约90m的位置,驳船500的卷扬机钢丝绳对管头进行系缆并牵引到位,系挂两侧定长缆绳300,定长缆绳300系挂完成后,利用锚艇700将管道从上侧往下侧顶推,直至上侧定长缆绳300完全收紧,将从下侧定位钢管桩200引出的防风缆绳400系挂至管段100预设 位置,完成系泊定位。
此大直径HDPE管道海上系泊定位方法,利用定位钢管桩200、定长缆绳300、防风缆绳400以及驳船500等通用简易设备即可以完成管段100的海上系泊定位,并以管段100顶推实现缆绳系挂,适用于大直径高密度聚乙烯管道灌水沉放前的定位作业,适用于各种水深,对船机设备要求低,所需操作人员数量较少。
上面结合附图对本发明实施例作了详细说明,但是本发明不限于上述实施例,在所述技术领域普通技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下作出各种变化。
Claims (6)
- 一种大直径HDPE管道海上系泊定位方法,包括管段、定位钢管桩、定长缆绳、防风缆绳以及驳船,其特征在于,包括以下步骤:S1:确定定位钢管桩数量、间距及定长缆绳长度;S2:对所述定位钢管桩进行沉桩施工;S3:浮运管段至基槽位置,由驳船抛锚并牵引管段的管头浮运到位;S4:水平移动所述管段到基槽上侧,使所述管段偏离基槽,系挂两侧定长缆绳在定位钢管桩上;S5:将所述管段向基槽下侧顶推,使上侧的定长缆绳收紧;S6:系挂由下侧的定位钢管桩引出的防风缆绳,系挂定位完成。
- 根据权利要求1所述的大直径HDPE管道海上系泊定位方法,其特征在于:所述定位钢管桩上设有若干拉耳,所述定长缆绳长度根据定位钢管桩与基槽距离确定。
- 根据权利要求1所述的大直径HDPE管道海上系泊定位方法,其特征在于:在步骤S2中,使用振动锤配合定位架对定位钢管桩进行沉桩施工。
- 根据权利要求3所述的大直径HDPE管道海上系泊定位方法,其特征在于:利用GPS引导驳船初定位,再对定位架精测,通过驳船锚缆收放定位,再将所述定位钢管桩穿过定位架,并完成沉桩施工。
- 根据权利要求1所述的大直径HDPE管道海上系泊定位方法,其特征在于:在步骤S3中,所述驳船上的卷扬机收紧钢丝绳将管段牵引到位。
- 根据权利要求1所述的大直径HDPE管道海上系泊定位方法,其特征在于:在步骤S4中,所述管段移动至基槽上侧后保持顺直,所述定长缆绳两端通过锚艇将两端分别牵引至管段和定位钢管桩固定位置处系缆。
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