WO2023029932A1 - 一种淤泥运输管线穿越水下箱涵的方法 - Google Patents

一种淤泥运输管线穿越水下箱涵的方法 Download PDF

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Publication number
WO2023029932A1
WO2023029932A1 PCT/CN2022/111699 CN2022111699W WO2023029932A1 WO 2023029932 A1 WO2023029932 A1 WO 2023029932A1 CN 2022111699 W CN2022111699 W CN 2022111699W WO 2023029932 A1 WO2023029932 A1 WO 2023029932A1
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Prior art keywords
box culvert
wire rope
winch
opening
lake
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PCT/CN2022/111699
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English (en)
French (fr)
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曹凯飞
林勋凭
丘旭源
祁胜林
胡云飞
蒋永辉
何达志
黄洪墘
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中交上海航道局有限公司
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Priority to KR1020247007269A priority Critical patent/KR20240038799A/ko
Publication of WO2023029932A1 publication Critical patent/WO2023029932A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/10—Pipelines for conveying excavated materials
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools

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  • the invention relates to a dredging project, in particular to a method for a silt transport pipeline passing through an underwater box culvert.
  • Environmental protection dredging is an effective engineering method to remove the polluted sediment of rivers and lakes. After the polluted sediment is dredged by cutter suction dredger, the mud is transported to the storage yard or dehydration site through a closed pipeline for dehydration treatment, and the remaining water discharged is treated Discharge after reaching the standard. In this link, it is necessary to select the equipment used in the dredging ship, concentration station and dehydration station in advance, and the pipeline layout should also be carried out before the dredging construction. A certain dredging project needs to arrange sludge pipelines between the dredging area and the thickening station and between the thickening station and the dehydration station.
  • the purpose of the present invention is to overcome the defects of the prior art and provide a method for the sludge transportation pipeline to pass through the underwater box culvert, which can ensure that the sludge transportation pipeline is arranged in a straight line in a long-distance underwater closed space, and can avoid operators from entering Underwater confined space operations, and can reduce the workload of divers.
  • the object of the present invention is achieved in the following way: a method for silt transport pipelines passing through underwater box culverts, which is used to pass three box culvert pipelines side by side from the opening of the box culvert on the side of the dredging lake and then from the flood discharge station to the culvert.
  • Step 1 open the trash grid at the box culvert opening on the side of the dredging lake and the trash grid at the box culvert opening on the side of the flood discharge station, and clear the obstacles in the box culvert;
  • Step 2 Fix a first simple floating platform on the water surface of the sump on one side of the flood discharge station, and set a steel structure support on the road directly above the box culvert opening on the side of the flood discharge station.
  • a first winch is installed laterally, and three first hangers whose lower ends extend into the water and are located at the mouth of the box culvert are connected side by side on the steel structure support. The lower ends of the three first hangers are each equipped with a first directional wheel ;
  • Step 3 Fix a second simple floating platform on the dredging lake near the mouth of the box culvert, and install three elbows side by side on the second simple floating platform, and then place the first three floating pipes on the surface of the dredging lake. The ends are connected to the three elbows one by one, and then the first ends of the three floating pipes are fixed by the figure-eight anchors;
  • Step 4 Splice three box culvert pipes whose length is greater than the length L of the box culvert on the dredging lake.
  • a section of hose is provided in the middle of each box culvert pipe, and the two ends of each box culvert pipe are respectively It is closed by the sealing plate, and a water injection hole with a water injection valve is opened on the sealing plate, and then water is injected into the three box culvert pipelines through the water injection hole, so that the three box culvert pipelines are suspended in the water, and then the three box culvert pipelines are suspended in the water through the anchor boat. Drag it to the vicinity of the opening of the box culvert;
  • Step five the anchor boat anchors on the dredging lake near the mouth of the box culvert, the anchor boat is provided with a second winch, and the anchor boat is connected with a first hoist whose lower end extends into the water and is flush with the lower ends of the three first hangers.
  • Two hangers a second directional wheel is installed on the lower end of the second hanger, the second wire rope on the second winch is wound on the second directional wheel, and the anchor boat is moved so that the second hanger is connected to the first first
  • the hanger is located on the same vertical line, and the second directional wheel is located on the same horizontal line as the first directional wheel installed at the lower end of the first first hanger;
  • Step 6 earlier the first steel wire rope on the first hoist is wound on the first first directional wheel by the diver, and then one end of a nylon rope with a length greater than the length L of the box culvert is connected with the first wire rope on the first hoist.
  • the ends of the wire rope are connected, and the diver holds the other end of the nylon rope to pass through the box culvert opening on the side of the flood discharge station to the box culvert opening on the side of the dredging lake, and hand it over to the anchor boat after bypassing the second directional wheel
  • the auxiliary personnel on the anchor boat will wind the nylon rope on the second winch, and start the second winch so that the nylon rope will pull the end of the first steel wire rope on the first winch from the box culvert on the side of the flood discharge station.
  • the mouth of the box culvert is pierced to the side of the dredging lake, and is located on the anchor boat, and then the first steel wire rope on the first winch is connected to the first end of the first box culvert pipe through the auxiliary personnel on the anchor boat, and at the same time Connect the second wire rope on the second hoist to the tail end of the first box culvert pipe;
  • Step 7 Start the first hoist to rewind the first steel wire rope, so that the first steel wire rope pulls the first box culvert pipe from the box culvert opening on the side of the dredging lake to the box culvert opening on the side of the flood discharge station. While opening the water injection valve, continue to inject water into the box culvert pipeline, so that the first box culvert pipeline sinks, and at the same time, hang the tail end of the first box culvert pipeline through the second wire rope of the second hoist to straighten the second box culvert pipeline.
  • a box culvert pipe when the first box culvert pipe is passed down successfully and is located on the predetermined axis, then inject water into the first box culvert pipe so that the first box culvert pipe is lowered gently the inner bottom of a box culvert;
  • Step 8 Connect the head end of the first box culvert pipeline to the first simple floating platform anchored in the reservoir on the side of the flood discharge station through an elbow, and connect the tail end of the first box culvert pipeline through the bend The head is connected with the second simple floating platform anchored on the dredged lake;
  • Step 9 switch the first wire rope on the first winch from the first first directional wheel to the second first directional wheel, and move the anchor boat at the same time, so that the second hanger on the anchor boat and the second hanger on the anchor boat are installed.
  • the first hangers of the two first directional wheels are located on the same vertical line;
  • Step 10 repeat steps 6 to 9, and sequentially insert the second box culvert pipe and the third box culvert pipe into the box culvert;
  • Step eleven connect the tail ends of the three box culvert pipes to the three elbows fixed on the second simple buoy one by one, and tie the first ends of the three box culvert pipes to the first On a simple floating platform, it is convenient to connect with the shore pipe arranged on the side of the flood discharge station.
  • the second simple floating platform is fixed on the dredging lake by four simple anchors.
  • step 4 underwater video recording equipment is also bound to the heads of the three box culvert pipelines.
  • Fig. 1 is a state diagram when performing step 6 of the method for crossing an underwater box culvert by a sludge transportation pipeline according to the present invention.
  • the method for the silt transportation pipeline of the present invention to pass through the underwater box culvert is used to pass three box culvert pipelines side by side from the box culvert opening on the side of the dredging lake and then pass through the box culvert on the side of the flood discharge station.
  • Method of the present invention comprises the following steps:
  • Step 1 open the trash grid 200 of the box culvert opening on the side of the dredging lake and the trash grid 200 of the box culvert opening on the side of the flood discharge station, and clear the obstacles in the box culvert;
  • Step 2 fix a first simple floating platform on the water surface of the sump 301 on one side of the flood discharge station 300, the first simple floating platform is fixed by three steel cables, wherein the free ends of two steel cables are driven into In the bank soil on the side of the flood discharge station, the free end of the third steel cable is bound to a concrete block with a hook, and put into the sump 301 on the side of the flood discharge station;
  • a steel structure support 10 is set on the road directly above the entrance, and a first winch 20 is installed laterally movable on the steel structure support 10, and three lower ends are connected side by side on the steel structure support 10 to extend into the water and be located at the entrance of the box culvert.
  • the first hanger of the first hanger, the lower end of three first hanger respectively installs a first directional wheel 30;
  • Step 3 Fix a second simple floating platform on the dredging lake near the mouth of the box culvert, and the second simple floating platform is fixed on the dredging lake by four simple anchors; install three curved floating platforms side by side on the second simple floating platform Then connect the first ends of the three floating pipes located on the water surface of the dredged lake to the three elbows one by one, and then fix the first ends of the three floating pipes through figure-eight anchors;
  • Step 4 splicing three box culvert pipelines 40 with a length greater than the length L of the box culvert on the dredging lake, each middle part of the box culvert pipeline 40 is provided with a section of hose, and each box culvert pipeline 40 is The two ends are respectively closed by sealing plates, and water injection holes with water injection valves are set on the sealing plates, and underwater video recording equipment is tied to the heads of the three box culvert pipelines 40, and then water is injected into the three box culvert pipelines 40 through the water injection holes , so that the three box culvert pipelines 40 are suspended in the water, and then the three box culvert pipelines 40 are dragged to the vicinity of the box culvert opening by the anchor boat 50;
  • Step five the anchor boat 50 is moored on the dredging lake near the mouth of the box culvert, and a second winch 60 is set on the anchor boat 50, and a lower end of the anchor boat 50 is connected to the water and connected with the lower ends of the three first hangers.
  • the second hanger that is flush, the lower end of the second hanger is equipped with a second directional wheel 70, the second wire rope on the second winch 60 is wound on the second directional wheel 70, and the anchor boat 50 is moved to make the second
  • the hanger is located on the same vertical line as the first first hanger, and the second directional wheel 70 is located on the same horizontal line as the first directional wheel 20 installed on the lower end of the first first hanger;
  • Step 6 first the first wire rope on the first winch 20 is wound on the first first directional wheel 30 by the diver, and then one end of a nylon rope with a length greater than the length L of the box culvert is connected to the first winch 20 The end of the first steel wire rope is connected, and the diver holds the other end of the nylon rope to pass through the box culvert opening on the side of the flood discharge station 300 to the box culvert opening on the side of the dredging lake, and bypasses the second directional wheel 70 Hand over to the auxiliary personnel on the anchor boat 50, the nylon rope is wound on the second hoist 60 by the auxiliary personnel on the anchor boat 50, start the second hoist 60 to make the nylon rope wrap the end of the first steel wire rope on the first hoist 20 The head is passed through the box culvert opening on one side of the flood discharge station 300 to the box culvert opening on the side of the dredging lake, and the end of the first wire rope is positioned on the anchor boat 50, and then the auxiliary personnel on the anchor boat 50
  • Step 7 start the first winch 20 to rewind the first steel wire rope, so that the first steel wire rope pulls the first box culvert pipeline 40 from the box culvert opening on the side of the dredging lake to the box culvert opening on the side of the flood discharge station, While pulling, open the water injection valve and continue to inject water into the first box culvert pipeline 40, so that the first box culvert pipeline 40 sinks, and at the same time hang the first box culvert pipeline through the second wire rope of the second winch 50 40, to straighten the first box culvert pipeline 40; ensure that the first box culvert pipeline 40 is located on the predetermined axis after the successful lowering; the underwater video equipment is used to monitor the first box culvert in real time When the pipeline 40 is under-passed, if it is found that the front is about to collide with the wall of the box culvert, the operator of the first hoist 20 and the operator of the second hoist 50 are notified through the intercom in time to stop operating the equipment to prevent the first pipe
  • the culvert pipe 40 hits the wall of the box culvert 100; when the first box culvert pipe 40 is passed down successfully and is located on the predetermined axis, water is injected into the first box culvert pipe 40 to make the first pass through the box culvert.
  • the box pipe 40 is placed gently on the bottom of the box culvert 100;
  • Step 8 Connect the head end of the first box culvert pipeline to the first simple floating platform anchored in the reservoir on the side of the flood discharge station through an elbow, and connect the tail end of the first box culvert pipeline through the bend The head is connected with the second simple floating platform anchored on the dredged lake;
  • Step 9 switch the first wire rope on the first winch from the first first directional wheel to the second first directional wheel, and move the anchor boat at the same time, so that the second hanger on the anchor boat and the second hanger on the anchor boat are installed.
  • the first hangers of the two first directional wheels are located on the same vertical line;
  • Step 10 repeat steps 6 to 9, and sequentially insert the second box culvert pipe and the third box culvert pipe into the box culvert;
  • Step eleven connect the tail ends of the three box culvert pipes to the three elbows fixed on the second simple buoy one by one, and tie the first ends of the three box culvert pipes to the first On a simple floating platform, it is convenient to connect with the shore pipe arranged on the side of the flood discharge station.

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Abstract

本发明公开了一种淤泥运输管线穿越水下箱涵的方法，包括以下步骤：在排洪站一侧的箱涵洞口的上方设置第一卷扬机和第一定向轮；在清淤湖上锚泊锚艇，该锚艇上设置第二卷扬机和第二定向轮；先由潜水员将尼龙绳的一端与第一钢丝绳的端头连接，再拿着尼龙绳的另一端从排洪站一侧的箱涵洞口穿到清淤湖一侧，并在绕过第二定向轮后绕在第二卷扬机上；启动第二卷扬机使尼龙绳将第一钢丝绳的端头从排洪站一侧的箱涵洞口穿到清淤湖一侧；通过锚艇上的辅助人员将第一、第二钢丝绳各自与管道的首、尾端连接；启动第一卷扬机，使第一钢丝绳拉着管道从清淤湖一侧的箱涵洞口拉到排洪站一侧，通过第二钢丝绳矫直管道。本发明能避免作业人员进入水下密闭空间作业。

Description

一种淤泥运输管线穿越水下箱涵的方法 技术领域
本发明涉及疏浚工程，具体涉及一种淤泥运输管线穿越水下箱涵的方法。
背景技术
环保疏浚是将河湖污染底泥清除的有效工程手段，污染底泥经绞吸挖泥船疏浚后，泥浆经密闭的管道输送到堆场或脱水场地，进行脱水处理，排出的余水经处理达标后排放。在此环节中需要提前选定清淤船舶、浓缩站和脱水站所使用的设备，还应在清淤施工前进行管线布设。某清淤工程需要在清淤区域到浓缩站之间以及浓缩站和脱水站之间布置污泥管线，由于清淤区域和浓缩站之间要横穿一条公路，使管道无法从上面公路经过，需要沿公路底下的箱涵穿过使管道通到箱涵另一头的排洪站的集水池。该箱涵的顶标高为-1m，而清淤湖的常水位在0.7m以上，导致该箱涵完全被水淹没。因此如何使管道穿过完全淹没在水中长度为80m的箱涵是工程技术人员亟待解决的技术问题。
发明内容
本发明的目的在于克服现有技术的缺陷而提供一种淤泥运输管线穿越水下箱涵的方法，它能确保污泥运输管道在水下长距离密闭空间直线布放，且可避免作业人员进入水下密闭空间作业，并能减少潜水员的工作量。
本发明的目的是这样实现的：一种淤泥运输管线穿越水下箱涵的方法，用于将三根穿箱涵管道并排地从清淤湖一侧的箱涵洞口穿入后从排洪站一侧的箱涵洞口穿出，该箱涵的长度为L；所述方法包括以下步骤：
步骤一，打开清淤湖一侧的箱涵洞口的拦污格栅和排洪站一侧的箱涵洞口的拦污格栅，并清理箱涵洞内的障碍物；
步骤二，在排洪站一侧的集水池的水面上固定一个第一简易浮台，并在排洪站一侧的箱涵洞口的正上方路面上设置钢结构支架，在钢结构支架上可横向移动地设置一台第一卷扬机，并在钢结构支架上并排地连接三根下端伸到水中并位于箱涵洞口的第一吊架，三根第一吊架的下端各自安装一个第一定向轮；
步骤三，在靠近箱涵洞口的清淤湖上固定一个第二简易浮台，并在第二简易浮台上并排地安装三个弯头，再将三根位于清淤湖水面上的浮管的首端一一对应地与三个弯头连接，再将三根浮管的首端通过八字锚固定；
步骤四，在清淤湖上将三根长度大于箱涵长度L的穿箱涵管道拼接好，每根穿箱涵管道的中部均设有一段软管，并将每根穿箱涵管道的两端各自通过封板封闭，封板上开设安装有注水阀的注水孔，再通过注水孔往三根穿箱涵管道内注水，使三根穿箱涵管道悬浮于水中，然后通过锚艇将三根穿箱涵管道拖到箱涵洞口的附近；
步骤五，锚艇在箱涵洞口附近的清淤湖上锚泊，该锚艇上设置一台第二卷扬机，该锚艇上连接一个下端伸到水中并与三根第一吊架的下端齐平的第二吊架，该第二吊架的下端安装一个第二定向轮，将第二卷扬机上的第二钢丝绳绕在第二定向轮上，移动锚艇，使第二吊架与第一根第一吊架位于同一条垂直线上，并使第二定向轮与安装在第一根第一吊架下端的第一定向轮位于同一条水平线上；
步骤六，先由潜水员将第一卷扬机上的第一钢丝绳绕在第一个第一定向轮上，接着将一根长度大于箱涵长度L的尼龙绳的一端与第一卷扬机上的第一钢丝绳的端头连接，由潜水员拿着尼龙绳的另一端从排洪站一侧的箱涵洞口穿到清淤湖一侧的箱涵洞口，并在绕过第二定向轮后交给锚艇上的辅助人员，由锚艇上的辅助人员将尼龙绳绕在第二卷扬机上，启动第二卷扬机使尼龙绳将第一卷扬机上的第一钢丝绳的端头从排洪站一侧的箱涵洞口穿到清淤湖一侧的箱涵洞口，并位于锚艇上，再通过锚艇上的辅助人员将第一卷扬机上的第一钢丝绳与第一根穿箱涵管道的首端连接，同时将第二卷扬机上的第二钢丝绳与第一根穿箱涵管道的尾端连接；
步骤七，启动第一卷扬机收卷第一钢丝绳，使第一钢丝绳拉着第一根穿箱涵管道从清淤湖一侧的箱涵洞口拉到排洪站一侧的箱涵洞口，一边拉一边打开注水阀继续向穿箱涵管道内注水，使第一根穿箱涵管道下沉，同时通过第二卷扬机的第二钢丝绳吊住第一根穿箱涵管道的尾端，以矫直第一根穿箱涵管道；当第一根穿箱涵管道在下穿成功并位于预定的轴线上时，再往第一根穿箱涵管道内注水，使第一根穿箱涵管道平缓地下放到箱涵的洞内底部；
步骤八，将第一根穿箱涵管道的首端通过弯头与锚泊在排洪站一侧的蓄水池内的第一简易浮台连接，将第一根穿箱涵管道的尾端通过弯头与锚泊在清淤湖上的第二简易浮台连接；
步骤九，将第一卷扬机上的第一钢丝绳从第一个第一定向轮切换到第二个第一定向轮上，同时移动锚艇，使锚艇上的第二吊架与安装第二个第一定向轮的第一吊架位于同一条垂直线上；
步骤十，重复步骤六至步骤九，依次将第二根穿箱涵管道和第三根穿箱涵管道穿入箱涵洞内；
步骤十一，将三根穿箱涵管道的尾端一一对应地与三个固定在第二简易浮台上的弯头连接，并将三根穿箱涵管道的首端通过弯头绑扎在第一简易浮台上，便于与布置在排洪站一侧的岸管连接。
上述的淤泥运输管线穿越水下箱涵的方法，其中，进行步骤二时，所述第一简易浮台通过三根钢缆固定，其中两根钢缆的自由端通过钢钎打入排洪站一侧的岸边土壤中，第三根钢缆的自由端与一块设有挂钩的混凝土块绑定，投入排洪站一侧的集水池中。
上述的淤泥运输管线穿越水下箱涵的方法，其中，进行步骤三时，所述第二简易浮台通过四个简易锚固定在清淤湖上。
上述的淤泥运输管线穿越水下箱涵的方法，其中，进行步骤四时，还要在三根穿箱涵管道的头部捆绑水下录像设备。
本发明的淤泥运输管线穿越水下箱涵的方法具有以下特点：
1)能确保污泥运输管道在水下长距离密闭空间直线布放，
2)除专业潜水员检查外，可避免作业人员进入水下密闭空间作业，提高施工安全保障。
附图说明
图1是进行本发明的淤泥运输管线穿越水下箱涵的方法的步骤六时的状态图。
具体实施方式
下面将结合附图对本发明作进一步说明。
请参阅图1，本发明的淤泥运输管线穿越水下箱涵的方法，用于将三根穿箱涵管道并排地从清淤湖一侧的箱涵洞口穿入后从排洪站一侧的箱涵洞口穿出，该箱涵100的长度为L＝80m。
本发明的方法包括以下步骤：
步骤一，打开清淤湖一侧的箱涵洞口的拦污格栅和排洪站一侧的箱涵洞口的拦污格栅200，并清理箱涵洞内的障碍物；
步骤二，在排洪站300一侧的集水池301的水面上固定一个第一简易浮台，该第一简易浮台通过三根钢缆固定，其中两根钢缆的自由端通过钢钎打入排洪站侧的岸边土壤中，第三根钢缆的自由端与一块设有挂钩的混凝土块绑定，投入排洪站侧的集水池301中；在排洪站300一侧的箱涵洞口的正上方路面上设置钢结构支架10，在钢结构支架10上可横向移动地设置一台第一卷扬机20，并在钢结构支架10上并排地连接三根下端伸到水中并位于箱涵洞口的第一吊架，三根第一吊架的下端各自安装一个第一定向轮30；
步骤三，在靠近箱涵洞口的清淤湖上固定一个第二简易浮台，该第二简易浮台通过四个简易锚固定在清淤湖上；在第二简易浮台上并排地安装三个弯头，再将三根位于清淤湖水面上的浮管的首端一一对应地与三个弯头连接，再将三根浮管的首端通过八字锚固定；
步骤四，在清淤湖上将三根长度大于箱涵长度L的穿箱涵管道40拼 接好，每根穿箱涵管道40的中部均设有一段软管，并将每根穿箱涵管道40的两端各自通过封板封闭，封板上开设安装有注水阀的注水孔，还在三根穿箱涵管道40的头部捆绑水下录像设备，再通过注水孔往三根穿箱涵管道40内注水，使三根穿箱涵管道40悬浮于水中，然后通过锚艇50将三根穿箱涵管道40拖到箱涵洞口的附近；
步骤五，锚艇50在箱涵洞口附近的清淤湖上锚泊，该锚艇50上设置一台第二卷扬机60，该锚艇50上连接一个下端伸到水中并与三根第一吊架的下端齐平的第二吊架，该第二吊架的下端安装一个第二定向轮70，将第二卷扬机60上的第二钢丝绳绕在第二定向轮70上，移动锚艇50，使第二吊架与第一根第一吊架位于同一条垂直线上，并使第二定向轮70与安装在第一根第一吊架下端的第一定向轮20位于同一条水平线上；
步骤六，先由潜水员将第一卷扬机20上的第一钢丝绳绕在第一个第一定向轮30上，接着将一根长度大于箱涵长度L的尼龙绳的一端与第一卷扬机20上的第一钢丝绳的端头连接，由潜水员拿着尼龙绳的另一端从排洪站300一侧的箱涵洞口穿到清淤湖一侧的箱涵洞口，并在绕过第二定向轮70后交给锚艇50上的辅助人员，由锚艇50上的辅助人员将尼龙绳绕在第二卷扬机60上，启动第二卷扬机60使尼龙绳将第一卷扬机20上的第一钢丝绳的端头从排洪站300一侧的箱涵洞口穿到清淤湖一侧的箱涵洞口，并将第一钢丝绳的端头位于锚艇50上，再通过锚艇50上的辅助人员将第一卷扬机20上的第一钢丝绳与第一根穿箱涵管道40的首端连接，同时将第二卷扬机50上的第二钢丝绳与第一根穿箱涵管道40的尾端连接；
步骤七，启动第一卷扬机20收卷第一钢丝绳，使第一钢丝绳拉着第一根穿箱涵管道40从清淤湖一侧的箱涵洞口拉到排洪站一侧的箱涵洞口，一边拉一边打开注水阀继续向第一根穿箱涵管道40内注水，使第一根穿箱涵管道40下沉，同时通过第二卷扬机50的第二钢丝绳吊住第一根穿箱涵管道40的尾端，以矫直第一根穿箱涵管道40；确保第一根穿箱涵管道40在下穿成功后位于预定的轴线上；水下录像设备用来实时监控第 一根穿箱涵管道40下穿时的状态，如发现前方快碰撞到箱涵的洞壁时，及时通过对讲机通知第一卷扬机20的操作人员和第二卷扬机50的操作人员停止操作设备，防止第一根穿箱涵管道40撞击到箱涵100的洞壁；当第一根穿箱涵管道40在下穿成功并位于预定的轴线上时，再往第一根穿箱涵管道40内注水，使第一根穿箱管道40平缓地下放到箱涵100的底部；
步骤八，将第一根穿箱涵管道的首端通过弯头与锚泊在排洪站一侧的蓄水池内的第一简易浮台连接，将第一根穿箱涵管道的尾端通过弯头与锚泊在清淤湖上的第二简易浮台连接；
步骤九，将第一卷扬机上的第一钢丝绳从第一个第一定向轮切换到第二个第一定向轮上，同时移动锚艇，使锚艇上的第二吊架与安装第二个第一定向轮的第一吊架位于同一条垂直线上；
步骤十，重复步骤六至步骤九，依次将第二根穿箱涵管道和第三根穿箱涵管道穿入箱涵洞内；
步骤十一，将三根穿箱涵管道的尾端一一对应地与三个固定在第二简易浮台上的弯头连接，并将三根穿箱涵管道的首端通过弯头绑扎在第一简易浮台上，便于与布置在排洪站一侧的岸管连接。
以上实施例仅供说明本发明之用，而非对本发明的限制，有关技术领域的技术人员，在不脱离本发明的精神和范围的情况下，还可以作出各种变换或变型，因此所有等同的技术方案也应该属于本发明的范畴，应由各权利要求所限定。

Claims (4)

  1. 一种淤泥运输管线穿越水下箱涵的方法，用于将三根穿箱涵管道并排地从清淤湖一侧的箱涵洞口穿入后从排洪站一侧的箱涵洞口穿出，该箱涵的长度为L；其特征在于，所述方法包括以下步骤：
    步骤一，打开清淤湖一侧的箱涵洞口的拦污格栅和排洪站一侧的箱涵洞口的拦污格栅，并清理箱涵洞内的障碍物；
    步骤二，在排洪站一侧的集水池的水面上固定一个第一简易浮台，并在排洪站一侧的箱涵洞口的正上方路面上设置钢结构支架，在钢结构支架上可横向移动地设置一台第一卷扬机，并在钢结构支架上并排地连接三根下端伸到水中并位于箱涵洞口的第一吊架，三根第一吊架的下端各自安装一个第一定向轮；
    步骤三，在靠近箱涵洞口的清淤湖上固定一个第二简易浮台，并在第二简易浮台上并排地安装三个弯头，再将三根位于清淤湖水面上的浮管的首端一一对应地与三个弯头连接，再将三根浮管的首端通过八字锚固定；
    步骤四，在清淤湖上将三根长度大于箱涵长度L的穿箱涵管道拼接好，每根穿箱涵管道的中部均设有一段软管，并将每根穿箱涵管道的两端各自通过封板封闭，封板上开设安装有注水阀的注水孔，再通过注水孔往三根穿箱涵管道内注水，使三根穿箱涵管道悬浮于水中，然后通过锚艇将三根穿箱涵管道拖到箱涵洞口的附近；
    步骤五，锚艇在箱涵洞口附近的清淤湖上锚泊，该锚艇上设置一台第二卷扬机，该锚艇上连接一个下端伸到水中并与三根第一吊架的下端齐平的第二吊架，该第二吊架的下端安装一个第二定向轮，将第二卷扬机上的第二钢丝绳绕在第二定向轮上，移动锚艇，使第二吊架与第一根第一吊架位于同一条垂直线上，并使第二定向轮与安装在第一根第一吊架下端的第一定向轮位于同一条水平线上；
    步骤六，先由潜水员将第一卷扬机上的第一钢丝绳绕在第一个第一定向轮上，接着将一根长度大于箱涵长度L的尼龙绳的一端与第一卷扬机上 的第一钢丝绳的端头连接，由潜水员拿着尼龙绳的另一端从排洪站一侧的箱涵洞口穿到清淤湖一侧的箱涵洞口，并在绕过第二定向轮后交给锚艇上的辅助人员，由锚艇上的辅助人员将尼龙绳绕在第二卷扬机上，启动第二卷扬机使尼龙绳将第一卷扬机上的第一钢丝绳的端头从排洪站一侧的箱涵洞口穿到清淤湖一侧的箱涵洞口，并位于锚艇上，再通过锚艇上的辅助人员将第一卷扬机上的第一钢丝绳与第一根穿箱涵管道的首端连接，同时将第二卷扬机上的第二钢丝绳与第一根穿箱涵管道的尾端连接；
    步骤七，启动第一卷扬机收卷第一钢丝绳，使第一钢丝绳拉着第一根穿箱涵管道从清淤湖一侧的箱涵洞口拉到排洪站一侧的箱涵洞口，一边拉一边打开注水阀继续向穿箱涵管道内注水，使第一根穿箱涵管道下沉，同时通过第二卷扬机的第二钢丝绳吊住第一根穿箱涵管道的尾端，以矫直第一根穿箱涵管道；当第一根穿箱涵管道在下穿成功并位于预定的轴线上时，再往第一根穿箱涵管道内注水，使第一根穿箱涵管道平缓地下放到箱涵的洞内底部；
    步骤八，将第一根穿箱涵管道的首端通过弯头与锚泊在排洪站一侧的蓄水池内的第一简易浮台连接，将第一根穿箱涵管道的尾端通过弯头与锚泊在清淤湖上的第二简易浮台连接；
    步骤九，将第一卷扬机上的第一钢丝绳从第一个第一定向轮切换到第二个第一定向轮上，同时移动锚艇，使锚艇上的第二吊架与安装第二个第一定向轮的第一吊架位于同一条垂直线上；
    步骤十，重复步骤六至步骤九，依次将第二根穿箱涵管道和第三根穿箱涵管道穿入箱涵洞内；
    步骤十一，将三根穿箱涵管道的尾端一一对应地与三个固定在第二简易浮台上的弯头连接，并将三根穿箱涵管道的首端通过弯头绑扎在第一简易浮台上，便于与布置在排洪站一侧的岸管连接。
  2. 根据权利要求1所述的淤泥运输管线穿越水下箱涵的方法，其特征在于，进行步骤二时，所述第一简易浮台通过三根钢缆固定，其中两根 钢缆的自由端通过钢钎打入排洪站一侧的岸边土壤中，第三根钢缆的自由端与一块设有挂钩的混凝土块绑定，投入排洪站一侧的集水池中。
  3. 根据权利要求1所述的淤泥运输管线穿越水下箱涵的方法，其特征在于，进行步骤三时，所述第二简易浮台通过四个简易锚固定在清淤湖上。
  4. 根据权利要求1所述的淤泥运输管线穿越水下箱涵的方法，其特征在于，进行步骤四时，还要在三根穿箱涵管道的头部捆绑水下录像设备。
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