WO2021063001A1 - 一种装配式堵口框架及装配式框架堵口坝的施工方法 - Google Patents

一种装配式堵口框架及装配式框架堵口坝的施工方法 Download PDF

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WO2021063001A1
WO2021063001A1 PCT/CN2020/089354 CN2020089354W WO2021063001A1 WO 2021063001 A1 WO2021063001 A1 WO 2021063001A1 CN 2020089354 W CN2020089354 W CN 2020089354W WO 2021063001 A1 WO2021063001 A1 WO 2021063001A1
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frame
blocking
water
plugging
breach
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PCT/CN2020/089354
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French (fr)
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王新云
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王新云
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/16—Sealings or joints
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/02—Restraining of open water
    • E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles

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  • the invention relates to a fabricated blockage frame and a construction method for a fabricated frame blockage dam, which is suitable for the field of flood fighting and rescue.
  • the "Clogging Truss" of the patent number CN9923346519 is a pre-made integral blocking truss made of section steel. In the event of a flood failure, it is installed on the breach by helicopter or hydraulic transportation. First, a hollow steel dam is built, and then Then throw the sand and soil bags on the water facing surface of the plugging truss. Because of the blocking effect of the plugging truss, the sand and soil bags will not be washed away by the water, and the plugging truss ensures that the plugging dam has sufficient strength and is compatible with the dam foundation. Binding force. However, this patent has not been put into practical use because it must be made into trusses in advance, which limits its use and is difficult to transport and store.
  • the patent number CN206428653U "a kind of flood prevention dike", as its name and claim 1, it uses steel pipes and fasteners, according to the situation such as flooding dikes, flooding dams, etc., the steel pipes and fasteners are assembled into a row of cross-sections It is a triangular retaining wall skeleton. A metal net is placed on the skeleton facing the water, and then a layer of tarpaulin is placed on the metal net.
  • this kind of flood prevention dike can only be used for flood control, or to prevent flooding or flooding. That is to say, it has not been used in the case of water flow or the water flow is very low and shallow. Once the flood breaks, the method cannot be used, and the biggest disaster caused by the flood is the break.
  • the purpose of the present invention is to provide a prefabricated blocking frame and a prefabricated frame blocking dam construction method, which is assembled into a three-dimensional structure by using the frame pipes and fasteners of the construction scaffold after entering the flood season or after the flood failure occurs.
  • the blocking trusses are arranged on the dam foundation of the breach door by helicopter, hydraulic or human power, and a hollow steel dam is first built, and a hollow steel dam is set up on the water-incoming surface of the blocking truss. Layer the net, and then throw sand and soil bags on the water facing surface to quickly build a water blocking wall.
  • the frame pipes and fasteners of the building scaffold are assembled into a hexahedral multi-layer blocking frame. Facing the water facing direction, there is a water retaining surface with an elevation angle.
  • the cross section perpendicular to the axis of the dam is polygonal or trapezoidal, and the upper side is set There is a platform, and the cross section facing the water retaining surface is quadrilateral, parallelogram, triangle or polygon.
  • a net is arranged on the water-retaining surface of the blocking frame, and the four perimeters of the net are connected with the frame pipe forming the edge of the blocking frame.
  • the lower end of the net must exceed the lowermost edge of the water-incoming surface by no less than 1 meter.
  • the construction method of the frame type plugging method of the present invention is as follows:
  • the plugging frame is directly set on the foundation of the breached embankment by helicopter or hydraulic transportation. It can be hoisted at the same time, and the two adjacent plugging frames are connected together. Due to the self-weight of the plugging frame and its hollow structure , So that the water resistance is very low, so it will not be washed away by the water flow.
  • the plugging frame can be assembled on-site in dry land. It can be multiple simultaneous and hanging at the same time. After the plugging frame is set up, the upper platform can be installed. After leveling, place a layer of bamboo springboard to form a channel, which is convenient for throwing and setting up blocking materials and follow-up work.
  • the other plugging frames can adopt rotating fasteners in the water facing direction, so that the plugging frame can adapt to the terrain under its own weight after it is installed.
  • the change makes the bottom of the blocking frame closer to and embedded in the dam foundation (referring to the soft dam foundation), increasing its binding force with the dam foundation, and reducing the gap between the bottom and the dam foundation.
  • a layer of tarpaulin can be installed on the upper section of the blocking surface of the blocking frame.
  • the tarpaulin is set up with a middle belt reel. Yes, connect one side of the tarp to the upper edge of the water-facing surface of the blocking frame, push the reel to stretch the tarp to fit the net on the water-retaining surface, and then throw the clay bag on it until the leak is blocked.
  • dam body of the frame plugging method is a hollow structure, it is found that there is water leakage, which can be quickly and effectively dealt with.
  • the blocking frame can be assembled before the breach occurs, which saves time, and can be dismantled after the flood control is over, facilitating the storage of materials.
  • the fabricated plugging frame plugging method By adopting the fabricated plugging frame plugging method, it only requires one-tenth or even less than one percent of the manpower and material resources of the existing plugging method to quickly block a flood breach under 10 meters, and its length is not limited. It will not damage the foundation of the breached dam, will not expand the danger, does not need to be operated in the water, and is adapted to any geological conditions. It is easy to obtain materials, can be used repeatedly, has low cost, is resistant to the impact of wind and waves, is easy to recover after disasters, and is safe and easy to construct.
  • Figure 1 is a schematic diagram of an assembled plugging frame structure.
  • Fig. 2 is a top view of Fig. 1.
  • Figure 3 is a schematic diagram of the cross-sectional structure of the plugging dam of the assembled plugging frame.
  • Figure 4 is a schematic diagram of the three-dimensional structure of a plugged truss dam.
  • Figure 5 is a graph showing the side pressure of the plugging dam.
  • Fig. 6 is the actual figure of the 1998 Jiujiang Yangtze River breach in Example 1.
  • Fig. 7 is a schematic diagram of an embodiment.
  • the frame pipes 3 and fasteners 4 of the construction scaffold are assembled into a hexahedral multi-layer gauging frame 1, facing the direction of the water, with an elevation angle water retaining surface 5, which is connected to the dam
  • the vertical section of the axis is polygonal or trapezoidal, a platform 2 is set on the upper side, and the section facing the water-retaining surface 5 is quadrilateral, parallelogram, triangle or polygon;
  • a net 6 is arranged on the water-retaining surface 5, and the circumference of the net 6 is connected with the frame pipe 3 constituting the blocking frame 1.
  • the lower end of the net 6 must exceed the lowermost end of the water-retaining surface 5 by no less than 1 meter.
  • the construction method of the fabricated frame blocking dam of the present invention is as follows:
  • the blocking frame 1 is directly placed on the foundation of the breached embankment by helicopter or hydraulic transportation, and multiple blocking frames 1 can be hoisted at the same time, and two adjacent blocking frames 1 are connected together. Because the plugging frame 1 is a hollow structure, its resistance to water entry is very low, and because of its heavy weight, it will not be washed away by water flow. The plugging frame 1 can be assembled in dry land and multiple simultaneous operations can be performed. 1 After setting, you can level the upper end of the platform and place a layer of bamboo springboard 7 to form a channel, which is convenient for throwing and setting up materials and subsequent work.
  • a layer of connecting net 9 is added on the water-retaining surface 5, and the vertical length of the connecting net 9 must exceed the lowermost end of the water-retaining surface 5 by 1 to 3 meters. Throw the clay bag 8 on the water retaining surface 5. Starting from the bottom, the clay bag 5 can be dropped by helicopter or manually. In addition, due to the blocking effect of the blocking frame 1, the boat transporting the clay bag 8 can be directly close to the breach. Speed up delivery. If the breach is large and deep, when the clay bag 8 is placed at a certain height to ensure the stability of the blocking frame 1, a layer of waterproof cloth can be installed on the upper section of the water-retaining surface 5.
  • the setting method of the waterproof cloth is to The tarp is rolled on a reel, one side is connected to the upper edge of the water-retaining surface 5, and the reel is pushed down to stretch the tarp to cover the net of the water-retaining surface 5, and then the clay bag 8 is thrown on it.
  • the other plugging trusses can adopt rotating fasteners in the water facing direction, so that the other plugging trusses can be under the action of their own weight after they are installed.
  • Adapt to the change of terrain to form a parallelogram make the bottom closer to or embedded in the dam foundation (referring to the soft dam foundation), increase its binding force with the dam foundation and reduce the gap between the bottom and the dam foundation.
  • Figures 5 and 6 show the actual figures of the flood breach of the Jiujiang River in the Yangtze River in 1998.
  • the total length of the breach is more than 40 meters.
  • Each grid is one meter
  • the total cross-sectional area is about 158 square meters
  • the total static water pressure is about 34 tons
  • the curve distribution is 45 degrees from top to bottom ( Figure 5).
  • this pressure distribution curve is theoretically It is very beneficial for the establishment of a blocking dam.
  • the cost of blocking materials has increased exponentially. At that time, the blocking of Jiujiang consumed 45,100 m 3 of blocks.
  • Manpower A shelf worker can assemble 0.8-1 ton pipes a day. This still refers to high-altitude operations, 30-ton pipes, six plugging trusses, 200-300 people, including preparation work, can be completed in two hours, if It can be lifted by helicopter and completed in one hour, and 1000 tons of clay bags can be completed in two to three hours with only 300 people, even if they are dropped manually. Moreover, these tasks and personnel can also be overlapped and completed at the same time, which will be faster.
  • the fabricated plugging frame method is used to plug the mouth. It only needs one-tenth or even less than one-hundredth of the manpower and material resources of the existing plugging method, and it can quickly block an unrestricted flood breach of less than 10 meters in length. . It will not damage the foundation of the breach, will not expand the danger, does not need to be operated in the water, and is adapted to any geological conditions. It requires abundant storage of pipes, fasteners and other materials, readily available, and can be used repeatedly, with low cost. The structure is stable and reliable, no need to establish a second line of defense, easy recovery after a disaster, and safe construction.

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Abstract

一种装配式堵口框架及装配式框架堵口坝的施工方法，适应于抗洪抢险时封堵洪水溃口时使用，它是在发生洪水溃口时，采用建筑用的架管（3）和扣件（4），根据溃口地形迅速组装成一个个三维空间的堵口框架（1），在其挡水面（5）设置一层网（6），再用直升机把它吊放在溃口内，形成一个空心的连续的钢构框架堵口坝的坝体，因为空心坝体的阻力小，不会被水流冲走，然后再在挡水面（5）抛投粘土袋（8），迅速堵住溃口，并一次完成闭气。该方法只需要现有堵口方法十分之一以下的人力物力，就可以快速堵住10米以下的洪水溃口。它不会破坏溃口坝基基础，不会扩大险情，不需要在水中作业，适应于任何地质条件，它取材容易，可反复使用，成本低廉，抗风浪冲击，灾后恢复容易，而且施工安全、轻松。

Description

一种装配式堵口框架及装配式框架堵口坝的施工方法 技术领域
一种装配式堵口框架及装配式框架堵口坝的施工方法，适应于抗洪抢险领域。
背景技术
目前在抗洪抢险发生洪水溃口时，是采用抛投巨量的实体物料和打桩，沉车，沉船等方法来堵口，这种方式耗用的物资量巨大，时间长，风险大，有时等到堵口完成时，洪水已经造成了很大的损失，使堵口失去了实用价值和意义。
专利号CN9923346519的《堵口桁架》，是采用型钢预先制成的整体堵口桁架，在发生洪水溃口时，用直升机或水力运输的方法设置在溃口上，先建立一个空心的钢构坝，然后再把砂土袋抛在堵口桁架的迎水面，因为堵口桁架的阻拦作用，砂土袋不会被水冲走，而堵口桁架则保证了堵口坝具有足够的强度和与坝基的结合力。但该专利因为必须预先制成一个个桁架，使其的使用受到限制，且运输储存困难，因此未投入实际使用。
专利号CN206428653U《一种防汛子堤》，正如它的名字和权利要求1所述，它是采用钢管和扣件，根据现场如漫堤，漫坝等情况，采用钢管和扣件组装成一排截面为三角形的挡水墙骨架，在迎水面的骨架上设一层金属网，再在金属网上设一层防水布，但这种防汛子堤只能在漫堤，或防止漫堤、漫坝，即还没有发生水流或水流很低很浅的情况下使用，一旦发生洪水溃口，所述方法就无法使用了，而洪灾造成的最大灾害就是溃口。
根据以上所述，目前还没有一种方法，能不受溃口的条件的限制，用较小的人力物力，迅速轻松地堵住洪水溃口。
发明内容
本发明的目的是提供一种装配式堵口框架和装配式框架堵口坝施工方法，它是在进入汛期或发生洪水溃口后，用建筑脚手架的架管和扣件，组装成一个个三维的堵口框架，在发生洪水溃口时，用直升机、水力或人力把所述堵口桁架排列设置在溃口口门的坝基上，先建立一道空心的钢构坝，在堵口桁架的迎水面设置一层网，然后在迎水面抛投砂土袋，迅速建立一道堵水墙。
实施方案
本发明的目的是用如下方式实现的：
由建筑脚手架的架管和扣件组装成一个个呈六面体的多层的堵口框架，面对迎水方向，设有一个仰角的挡水面，其与堤坝轴线垂直截面为多边形或梯形，上边设有一个平台，面对挡水面的截面为四边、平行四边形或三角形或多边形。
在所述堵口框架的挡水面上设有网，网的四周边与组成堵口框架边缘的架管连接，网的下端必须超出所述迎水面最下缘不低于1米。
本发明框架式堵口法的施工方法如下：
用直升机或水力运输的方式把堵口框架直接设置在溃口的堤基上，可以多个同时吊装，并把相邻的两个堵口框架连接在一起，由于堵口框架的自重和其空心结构，使其入水的阻力很低，因此不会被水流冲走，堵口框架在旱地就地组装，可以多个同时进行，同时吊放，在把堵口框架设置后，可以把其上部的平台上找平后再放置一层竹跳板，形成一个通道，便于抛投设堵物料和后续工作。
因为溃口的底部往往是不平整的，因此除了设置一个主堵口框架外，其余堵口框架的迎水方向可采用旋转扣件，使堵口框架设置后，能在其自重的作用下适应地形的变化，使堵口框架的底部更贴近并嵌入坝基(指软的坝基)，增加其与坝基的结合力，减少底部与坝基之间的缝隙。
有时两个框架有较大的间距，为了防止封堵的物料被水流冲走，在横跨两个堵口框架的挡水面上加设一层钢丝网，钢丝网的竖向长度必须超出堵口框架挡水面最下端1～3米。把粘土袋抛投在挡水面的网上，封堵堵口框架与坝基下边的隙缝，从最下边开始叠加，砂土袋可以采用直升机和人工投放，同时，由于堵口框架的阻挡作用，运送粘土袋的小船可以直接靠近溃口，加快粘土袋的投放速度。
如果洪水溃口较大较深，当粘土袋投放到一定高度，能确保堵口框架的稳定性时，可以在堵口框架挡水面的上段设置一层防水布，防水布的设置，采用中间带卷轴的，把防水布的一边连接在堵口框架的迎水面的上边缘，推动卷轴使防水布舒展贴合在挡水面的网上，然后再在上面抛投粘土袋，直到堵住漏水。
由于框架堵口法的坝体是空心结构，发现有漏水现象，能迅速有效地处理好。
如果采用直升机吊放，堵口框架可在发生溃口前就组装好，更加节约时间，而在防汛结束后可以拆除，便于材料的保管。
采用装配式堵口框架堵口法，它只需要现有堵口方法十分之一甚至百分之一以下的人力物力，就可以快速堵住10米以下的洪水溃口，其长度不受限制。它不会破坏溃口坝基基础，不会扩大险情，不需要在水中作业，适应于任何地质条件，它取材容易，可反复使用，成本低廉，抗风浪冲击，灾后恢复容易，而且施工安全、轻松。
附图说明
图1是一种装配式堵口框架结构示意图。
图2是图1的俯视图。
图3是装配式堵口框架的堵口坝截面结构示意图。
图4是堵口桁架坝的立体结构示意图。
图5是堵口坝承受侧压力的曲线图。
图6是实施例1的1998长江九江溃口实际图形。
图7是实施例的示意图。
具体实施方式
下面在结合附图对本发明做进一步说明：
图1，2中，由建筑脚手架的架管3和扣件4组装成一个个呈六面体的多层的堵口框架1，面对迎水方向，设有一个仰角的挡水面5，其与堤坝轴线垂直截面为多边形或梯形，上边设有一个平台2，面对挡水面5的截面为四边、平行四边形或三角形或多边形；
在所述的挡水面5上设有网6，网6的四周与组成堵口框架1的架管3连接，网6的下端必须超出所述挡水面5最下端不低于1米。
本发明装配式框架堵口坝的施工方法如下：
图3，4，7中，用直升机或水力运输的方式把堵口框架1直接搁置在溃口的堤基上，可以多个同时吊装，并把相邻的两个堵口框架1连接在一起，由于堵口框架1是空心结构，使其入水的阻力很低，又因自重较重，因此不会被水流冲走，堵口框架1在旱地组装，可以多个同时进行，在把堵口框架1设置后，可以把平台上端找平后再放置一层竹跳板7，形成一个通道，便于抛投设堵物料和后续工作。
在所述挡水面5上加设一层连接网9，连接网9的竖向长度必须超出挡水面5最下端1～3米。把粘土袋8抛投在挡水面5上，从最下边开始，粘土袋5可以采用直升机和人工投放，另外，由于堵口框架1的阻挡作用，运送粘土袋8的小船可以直接靠近溃口处，加快投放速度。如果溃口较大较深，可以在粘土袋8投放到一定高度能确保堵口框架1的稳定性时，可以在所述挡水面5的上段设置一层防水布，防水布的设置方法，是把防水布卷在一根卷轴上，一边连接在挡水面5的上缘，然后向下推动卷轴使防水布舒展覆盖在所述的挡水面5的网上，然后再在上面抛投粘土袋8。
在两个相邻的堵口框架1有时会有很大的间隙，有时还会产生位移，因此必须设置一层横跨相邻的两个堵口框架1的钢丝网9来解决，所述的钢丝网9把相邻的两个堵口桁架牵1连在一起，其单边搭接不小于2米，这样，即使两个堵口框架1之间有较大间隙或位移，仍不会影响堵口效果。
图4，7中，为使表达较清晰，图中所述的网5、竹跳板7、粘土袋8和钢丝网10只画出局部，在实际中是连续的。
因为溃口的底部往往是不平整的，因此除了设置一个主堵口框架1外，其余堵口桁架的迎水方向可采用旋转扣件，使其他堵口桁架设置后，能在其自重的作用下适应地形的变化形成平行四边形，使其底部更贴近或嵌入坝基(指软的坝基)，增加其与坝基的结合力和减少底部与坝基之间的缝隙。
图5，6中，是1998年长江九江洪水溃口实际图形，图中溃口全长40多米，溃口中间深两边浅，最深处不到6米(指水面以下，图中每段为6米，高度每格为一米)，总截面积约158平方米，合计静水总静压力约34吨，且呈上轻下重45度的曲线分布(图5)，本来，这种压力分布曲线在理论上对建立堵口坝是十分有利的，但是，由于水流的动能产生的冲击力，使得耗费的堵口物资成几何级增长，而当时九江的堵口，耗用了块石4.51万m 3，碎石3.33万m 3，粘土1.87万m 3，粮食2700t，钢材80t，木材480m 3，仅耗用物资的费用就近一亿元，另外，还沉了多艘轮船、汽车。参加抢险的部队官兵24000多人，同时在一线的有四五千人，还有多少人、车在协助，服务，整个堵口时间花了五天五夜。
而采用本发明所述的桁架式堵口法的施工方法，以封堵九江溃口为例，需要多少人力物力呢。
图7中，封堵九江溃口，需要六个堵口桁架，最高的六米，最低的三米，总共只需架管三十吨，扣件6000个，网300平方米，竹跳板300平方米，粘土(袋装)不到1000吨。
人工：一个架子工，一天可组装0.8～1吨架管，这还是指高空作业，三十吨架管，六个堵口桁架，用200～300人，包括准备工作，二小时可以完成，如果用直升机吊放，一小时完成，1000吨粘土袋，即使釆用人工抛投放，只要300人，二～三小时能完成。而且，这些工作和人员还可以交叉重叠同时来完成，速度会更快。
这样计算，釆用堵口桁架法来堵口，只要100万以下的费用，最多六小时，就能堵住类似于98年长江的九江溃口。
采用装配式堵口框架法堵口，它只需要现有堵口方法的十分之一甚至百分之一以下的人力和物力，就可以快速堵住10米以下的长度不受限制的洪水溃口。它不会破坏溃口基础，不会扩大险情，不需要在水中作业，适应于任何地质条件，它所需的架管、扣件等材料储量丰富，唾手可得，并可反复使用，成本低廉，它的结构稳定、可靠，不需要建立二道防线，灾后恢复容易，而且施工安全。
以上所述，仅是本申请的较佳实施例，并非对本申请做任何形式的限制，虽然本申请以较佳实施例揭示如上，然而并非用以限制本申请，任何熟悉本专业的技术人员，在不脱离本申请技术方案的范围内，利用上述揭示的技术内容做出些许的变动或修饰均等同于等效实施案例，均属于技术方案范围内。

Claims (4)

  1. 一种装配式堵口框架，其特征在于：它是由架管(3)和扣件(4)装配成的至少呈六面体的空心多层的堵口框架(1)，面对迎水的方向，设有一个成仰角的挡水面(5)，所述堵口框架(1)与堤坝轴线垂直截面为多边形或梯形，上边设有一个平台(2)，面对挡水面(5)的截面为四边形、多边形或三角形。
  2. 根据权利要求1所述的一种装配式堵口框架，其特征在于：在所述堵口框架(1)的挡水面(5)上，设有一层网(6)，所述的网(6)与组成堵口框架(1)的架管(3)相连接，其下端超出所述挡水面(5)最下端不少于1米。
  3. 一种装配式框架堵口坝的施工方法，其特征在于：
    (1)当发生洪水溃口时，根据溃口口门的具体情况，用建筑脚手架的架管(3)和扣件(4)，装配与口门现场相适应的堵口框架(1)，堵口框架(1)的高度和宽度根据口门的深度和水流的速度来决定，而单个堵口框架(1)的长度根据所用架管(3)的长度来决定，一般长6～9米，多个堵口框架(1)可以同时装配，同时吊运投放；
    (2)在所述的挡水面(5)上设置网(6)，网(6)的四周与所述堵口框架(1)四周的架管(3)相连接，网(6)的下端伸出挡水面(5)的下缘0.5米～3米；
    (3)用直升机或水运把堵口框架(1)排列搁置在溃口的坝基上，由于堵口框架(1)的重量很大，又是空心结构，入水的阻力小，在6米/秒的流速下也不会被水冲走，即使坝基被水冲刷，堵口框架(1)也只会整体下沉，滑移也会在允许范围内；
    (4)由于溃口初期口门是动态变化的，并且又很难测定水下口门的形状，组装的堵口框架(1)上的平台(2)不一定衔接平整，因此必须在排列好的堵口框架(1)的平台(2)上用架管(3)再搭建找平，铺上一层竹跳板(7)，形成一个通道，以利人车通行，便于运送堵口物料和后续操作；
    (5)在两个并排设置的堵口框架(1)相隔处，设置一张连接钢丝网(9)，连接钢丝网(9)横跨两个堵口框架(1)的接缝处，并超出挡水面(5)最下端0.5～3米；连接钢丝网9的上缘两边分别与所述相邻两个堵口框架(1)挡水面(5)的上缘连接；
    (6)堵口框架1在溃口设置时，如果溃口口门较大，可以一边设置堵口框架(1)，一边在挡水面(5)的一面抛投粘土袋(8)，粘土袋(8)压在挡水面(5)的网(6)上，从最底部开始，由于网(6)和堵口框架(1)的阻拦作用，粘土袋(8)不会被水冲走，之所以选择粘土袋，是因为取材方便，又可以一次性完成闭气；
    (7)粘土袋(8)可采直升机，人工抛投，由于堵口框架(1)的阻挡作用，此时口门已相对安全，运载粘土袋(8)的小船可以直接靠近口门投放堵口物料，加快堵口进程。
  4. 根据权利要求3所述的装配式框架堵口坝的施工方法，其特征在：如果溃口口门较大较深时，为了加快堵口进程，当粘土袋(8)抛投到一定高度，其重力足可以保证的压住堵口框架(1)不会滑移的情况下，在堵口框架(1)的上半段，可以设置一层防水布或膜；
    (1)设置防水布(膜)，是把防水布卷在一根卷轴上，把防水布(膜)的一边固定在堵口框架(1)挡水面(5)的上边缘的架管(3)上，把卷轴顺着挡水面(5)往下推，防水布就会舒展贴合在网(6)上，迅速挡住洪水，同时又不会形成大的冲击力，使堵口框架(1)整体保持稳定不滑移或少滑移，防水布设好后，继续在漏水的地方抛投粘土袋(8)，直到完全堵住溃口。
PCT/CN2020/089354 2019-10-02 2020-05-09 一种装配式堵口框架及装配式框架堵口坝的施工方法 WO2021063001A1 (zh)

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