A method and device for constructing a vacuum preloading drainage channel on an underwater soft foundation

Abstract

The present invention discloses a method and apparatus for constructing a vacuum preloading drainage channel in underwater soft foundations. The method comprises: at the construction site, controlling a construction vessel to install a drainage pipe below the mud layer to perform membrane-free drainage. This method enables efficient vacuum preloading treatment of underwater soft soil foundations. The present invention has application in the field of soft foundation treatment.

Description

Technical Field

[0001] The present invention relates to the field of soft foundation treatment, and in particular to a method and a device for constructing a vacuum preloading drainage channel in an underwater soft foundation. Background Art

[0002] In recent years, with the increasing shortage of terrestrial land resources, the development and utilization of offshore underwater land has continued to increase both domestically and internationally. Currently, commonly used underwater foundation treatment methods include DCM and vibro-compacted crushed stone piles. However, these methods are not very effective for underwater ultra-soft soils.

[0003] At present, the vacuum preloading method is mostly used to improve the super-onshore soft soil foundation. The general implementation method is: inject permeable materials vertically at a certain interval, pass the vertical permeable materials through the sand cushion layer or directly connect the water collection pipe, connect the water collection pipe to the vacuum pump, lay a sealing film on the surface of the reinforced area, start the vacuum pump to draw vacuum, so as to achieve the effect of improving the bearing capacity of the soft soil foundation.

[0004] However, under the special working conditions of underwater, traditional land-based vacuum preloading equipment is obviously not applicable. On the one hand, it is necessary to solve the problem of connecting the underwater plug-in plate and riser with the water collection pipe, and on the other hand, it is necessary to consider the sealing and vacuuming issues. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a method for constructing a vacuum preloading drainage channel on an underwater soft foundation, which can efficiently construct a vacuum preloading treatment on an underwater soft foundation.

[0006] The invention also provides a construction device for realizing the above method.

[0007] A method for constructing a vacuum preloading drainage channel in an underwater soft foundation according to an embodiment of the first aspect of the present invention includes:

[0008] At the construction site, control the construction vessel to install drainage pipes below the mud layer for drainage.

[0009] The method for constructing a vacuum preloading drainage channel for an underwater soft foundation according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: when there is a mud layer at the bottom of the water, the mud layer itself has a certain water-isolating property. When the drainage pipe passes through the mud layer to absorb water, a certain cavity will be generated below the mud layer. Then, under the pressure of the upper water, the cavity is compacted to achieve preloading of the soft soil foundation. The drainage pipe is directly inserted for construction without covering with a sealing film, which makes construction more efficient and saves the cost of sealing film and film laying equipment.

[0010] According to some embodiments of the present invention, a plurality of first positioning members are laid at the construction location, a longitudinal positioning line is formed along the connecting direction of the plurality of first positioning members, and a transverse positioning line is formed by extending perpendicular to the longitudinal positioning line along the side where the water is located;

[0011] Assemble the construction vessel and move it along the horizontal or vertical positioning line;

[0012] The construction ship is provided with a hull, and a plate inserting device is provided on the hull. The plate inserting device can be moved to different plate inserting positions relative to the hull, and the plate inserting device is used for inserting plates.

[0013] According to some embodiments of the present invention, when the construction vessel arrives at a construction location, the plate inserting device is controlled to move relative to the vessel body to a plate inserting position;

[0014] The inserting plate device is inserted into the hollow casing through the mud layer to the depth of the underwater foundation;

[0015] Fill the casing with water-permeable material, insert the drainage pipe until it contacts the water-permeable material, and provide a sealing cap on the contact end of the drainage pipe, which is water-permeable.

[0016] Remove the cannula;

[0017] The plate inserting device is controlled to move relative to the hull and move to the next plate inserting position, and the above steps are repeated until all the plate inserting positions that the plate inserting device can move to relative to the hull are completed.

[0018] According to some embodiments of the present invention, the plate inserting device is capable of moving relative to the hull along the direction of the transverse positioning line.

[0019] According to some embodiments of the present invention, the plate inserting device is capable of moving relative to the hull along the longitudinal positioning line.

[0020] According to some embodiments of the present invention, the construction vessel is controlled to move along the transverse orientation line to a next construction location.

[0021] According to some embodiments of the present invention, the construction vessel is controlled to move along the longitudinal positioning line to a next construction position.

[0022] According to some embodiments of the present invention, a plurality of first positioning members are provided on a plurality of first positioning plates, a first positioning member corresponds to a first positioning plate, and two adjacent first positioning plates are overlapped and connected.

[0023] According to some embodiments of the present invention, the number of the first positioning plates is two, and the number of the first positioning members is also two;

[0024] When the construction vessel corresponds to the first positioning member of a first positioning plate, another first positioning plate overlaps one end of the first positioning plate and is located in the moving direction of the construction vessel along the longitudinal positioning line;

[0025] When the construction vessel completes construction at all positions on a first positioning plate, the construction vessel moves along the longitudinal positioning line to another first positioning plate, removes the connection end of the first positioning plate from the other first positioning plate, and moves the first positioning plate to the other end of the other first positioning plate, located in the moving direction of the construction vessel along the longitudinal positioning line;

[0026] Repeat the above steps until the construction of the construction vessel along the longitudinal positioning line is completed.

[0027] The construction device according to the second embodiment of the present invention can be constructed using the above-mentioned underwater soft foundation vacuum preloading drainage channel construction method.

[0028] The construction device according to the second aspect of the embodiment of the present invention has at least the following beneficial effects: it can quickly and accurately insert the drainage pipe below the mud layer and drain the water under the mud layer. The drainage pipe insertion is simple and efficient, the drainage is efficient, and the construction efficiency is improved.

[0029] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0031] Figure 1 This is a schematic structural diagram of a method for constructing a vacuum preloading drainage channel on an underwater soft foundation after construction according to an embodiment of the present invention;

[0032] Figure 2 A schematic side view of a construction vessel for vacuum preloading treatment of underwater soft foundation according to an embodiment of the present invention;

[0033] Figure 3 A schematic top view of a construction vessel for vacuum preloading treatment of underwater soft foundation according to an embodiment of the present invention;

[0034] Figure 4 A schematic front view of a construction vessel for vacuum preloading treatment of underwater soft foundation according to an embodiment of the present invention;

[0035] Figure 5 The present invention is a schematic diagram of the construction process of a construction vessel for vacuum preloading treatment of underwater soft foundation according to an embodiment of the present invention.

[0036] Figure Number:

[0037] Hull 100; first movable track 110;

[0038] Insertion plate device 200; base 210; second movable track 211; insertion plate assembly 220; insertion plate machine 221; movable platform 222; telescopic rod 223; operation room 224;

[0039] Guide device 300; winch 310; guide wheel 320; cable 330;

[0040] Drain pipe 500; mud layer 600; permeable material 700; sealing cap 800. DETAILED DESCRIPTION

[0041] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, "a number" refers to one or more, and "a plurality" refers to two or more. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly indicating the number or order of the technical features.

[0044] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0045] Reference Figure 1 As shown, the method for constructing a vacuum preloading drainage channel on an underwater soft foundation according to the first embodiment of the present invention includes:

[0046] At the construction site, the construction vessel is controlled to install a drainage pipe 500 below the mud layer 600 for drainage.

[0047] It is worth understanding that when there is a mud layer 600 at the bottom of the water, the mud layer 600 itself has a certain water-proof property. When the drainage pipe 500 passes through the mud layer 600 to absorb water, a certain cavity will be generated below the mud layer 600. Then, under the pressure of the upper water, the cavity is compacted to achieve pre-compression of the soft soil foundation. The drainage pipe 500 is directly inserted for construction without covering with a sealing film. The construction is more efficient and saves the cost of sealing film and film laying equipment.

[0048] In addition, when there is no mud layer 600 at the bottom of the water, the bedrock layer is mostly used for water isolation. The weighing capacity of the bedrock is sufficient and can be used directly as a foundation.

[0049] In this embodiment, a plurality of first positioning members are laid at the construction location, a longitudinal positioning line is formed along the connecting direction of the plurality of first positioning members, and a transverse positioning line is formed by extending perpendicularly to the longitudinal positioning line along the side where the water is located;

[0050] Assemble the construction vessel and move it along the horizontal or vertical positioning line;

[0051] The construction vessel is provided with a hull 100 , on which a plate inserting device 200 is provided. The plate inserting device 200 can be moved to different plate inserting positions relative to the hull 100 , and is used for inserting plates.

[0052] It is worth understanding that during construction on rivers, lakes, and reservoirs, the first positioning member can be set along a shore line, and by positioning the position of the hull 100 moving along the shore line, and determining the transverse positioning line and the longitudinal positioning line, by controlling the movement of the construction ship along the transverse positioning line and the longitudinal positioning line, the construction ship can be accurately moved to the construction position within the construction area.

[0053] It is worth understanding that during construction in rivers, lakes, and reservoirs, a second positioning member may be provided on the opposite bank of the first positioning member to facilitate positioning of the transverse positioning line.

[0054] It is worth understanding that during offshore construction, it is necessary to pre-set an origin position, set a first positioning member at the origin position, and then determine the transverse positioning member and the longitudinal positioning line to accurately position the construction vessel when it moves.

[0055] It is worth understanding that the plate insertion device 200 on the construction vessel can be moved to different plate insertion positions relative to the hull 100, thereby reducing the number of movements of the construction vessel. For example, if there are 40 total plate insertion positions, and the plate insertion device 200 can be moved relative to the hull 100 to two different plate insertion positions, the hull 100 only needs to move 20 times. After each movement, the plate insertion device 200 performs construction on two different plate insertion positions, reducing the number of movements of the hull 100 by half. When the plate insertion device 200 can be moved to more different plate insertion positions relative to the hull 100, the number of movements of the hull 100 is reduced even further. However, when the hull 100 is moving on the water, the distance it moves each time is not accurate enough. By adjusting the actual plate insertion position by moving the plate insertion device 200 relative to the hull 100, the position accuracy of each plate can be improved, making the overall construction accuracy higher.

[0056] Reference Figure 1 As shown, when the construction vessel arrives at a construction location, the plate inserting device 200 is controlled to move to a plate inserting position relative to the hull 100;

[0057] The inserting plate device 200 is inserted into the hollow casing through the mud layer 600 to the depth of the underwater foundation;

[0058] Fill the water-permeable material 700 into the sleeve, insert the drain pipe 500 until it abuts against the water-permeable material 700, and set a sealing cap 800 on the abutting end of the drain pipe 500. The sealing cap 800 is water-permeable.

[0059] Remove the cannula;

[0060] The board insertion device 200 is controlled to move relative to the hull 100 and move to the next board insertion position, and the above steps are repeated until all the board insertion positions that the board insertion device 200 can move to relative to the hull 100 are completed.

[0061] It is worth understanding that when it is necessary to construct an underwater soft foundation, the hull 100 is first moved to the water surface corresponding to the underwater soft foundation, and then the plates are inserted through the plate insertion device 200 on the hull 100. The plates are actually sleeves. After insertion, the permeable material 700 is filled into the sleeve to a certain height to achieve the installation of the permeable material 700; then the drain pipe 500 is inserted into the sleeve, and the inserted end of the drain pipe 500 is covered with a water-permeable sealing cap 800. The drain pipe 500 will abut against the permeable material 700, and then the sleeve is pulled out. After the installation is completed, the plate insertion device 200 moves relative to the hull 100 to the next plate insertion position and continues to insert plates. The hull 100 stays at a certain position, and the plate insertion device 200 can insert plates in more positions at a time to install more permeable materials 700, thereby improving efficiency;

[0062] It is worth understanding that when the hull 100 stops moving, the position of the plug-in plate is controlled by the movement of the plug-in plate device 200. Compared with controlling the position of the plug-in plate by the movement of the hull 100, the position of the plug-in plate is more accurate and the construction is more precise. Moreover, when the plug-in plate device 200 completes the plug-in plate, the distance that the hull 100 needs to move at one time increases. Compared with multiple short-distance movements, the movement accuracy of the hull 100100 is higher, which makes the interval accuracy of the actual plug-in plate position higher.

[0063] The hull 100 can be made of a flat barge or a plurality of small floats to form a stable floating platform. After use, it can be disassembled into small floats for easy transportation using flatbed trucks, barges, etc.

[0064] In addition, after all the drainage pipes 500 are installed, the drainage pipes 500 can be converged through a water collecting pipe, and a vacuum suction device can be connected to the water collecting pipe to achieve suction, and the sucked water can be re-injected into the water.

[0065] In this embodiment, the board inserting device 200 can move relative to the hull 100 along the direction of the transverse positioning line, so as to reduce the number of times the hull 100 moves along the direction of the transverse positioning line.

[0066] In this embodiment, the board inserting device 200 can move relative to the hull 100 along the longitudinal positioning line, so as to reduce the number of times the hull 100 moves along the longitudinal positioning line.

[0067] In this embodiment, the board inserting device 200 can move relative to the hull 100 along the transverse positioning line direction and the longitudinal positioning line direction to reduce the number of movements of the hull 100 along the longitudinal positioning line direction and the transverse positioning line direction.

[0068] In this embodiment, the construction vessel is controlled to move along the transverse orientation line to the next construction position.

[0069] In this embodiment, the construction vessel is controlled to move along the longitudinal positioning line to the next construction position.

[0070] Specifically, a plurality of first positioning members are provided on a plurality of first positioning plates, a first positioning member corresponds to a first positioning plate, and two adjacent first positioning plates are overlapped and connected. For example, when the number of first positioning plates is two, the number of first positioning members is also two, and a construction vessel corresponds to a first positioning member of a first positioning plate, another first positioning plate overlaps one end of this first positioning plate and is located in the moving direction of the construction vessel along the longitudinal positioning line; and when the construction vessel completes construction at all positions on a first positioning plate, the construction vessel moves along the longitudinal positioning line to another first positioning plate, removes the connection end of one first positioning plate and another first positioning plate, and moves the first positioning plate to the other end of another first positioning plate and is located in the moving direction of the construction vessel along the longitudinal positioning line; and the above steps are repeated until the construction of the construction vessel along the longitudinal positioning line is completed.

[0071] It is worth understanding that repeated positioning is achieved through the cyclic overlap of the first positioning plate and another first positioning plate, and the overlap accuracy is high, so that the accuracy of each movement of the construction vessel will also be improved, thereby improving the overall accuracy of the construction.

[0072] Reference Figures 2 to 5 As shown, the construction device according to the second embodiment of the present invention can be constructed using the above-mentioned underwater soft foundation vacuum preloading drainage channel construction method.

[0073] It is worth understanding that the construction device can quickly and accurately insert the drainage pipe 500 to below the mud layer 600 and drain the water under the mud layer 600. The insertion of the drainage pipe 500 is simple and efficient, and the drainage is efficient, thereby improving construction efficiency.

[0074] Reference Figure 2 、 Figure 3 and Figure 4 As shown, a first movable track 110 is provided on the hull 100 , and the board device 200 is provided on the first movable track 110 to move along the first movable track 110 .

[0075] It is worth understanding that, taking the centerline direction of the hull 100 extending from its center to the side in the horizontal plane as an example, when the first movable rail 110 is set along the centerline direction, the plate insertion device 200 can move along the first movable rail 110 and insert plates multiple times along the centerline direction of the hull 100; when the first movable rail 110 is set along the vertical centerline direction, the plate insertion device 200 can move along the first movable rail 110 and insert plates multiple times along the vertical centerline direction of the hull 100.

[0076] It is worth noting that the board insertion opening of the board insertion device 200 can be positioned outside the hull 100 and facing the water surface, allowing for insertion of boards into the water. When the board insertion device 200 is fully mounted on the hull 100, the hull 100 is provided with a plurality of pre-set board insertion holes for the board insertion device 200. The board insertion holes are fixed in position, allowing the board insertion device 200 to determine the board insertion position through the board insertion hole with greater accuracy than controlling the movement of the board insertion device 200.

[0077] The plug-in device 200 may be provided with an engine or a motor, and may also be provided with a plurality of wheel sets, and the engine or the motor drives the wheel sets to move along the first movable track 110 , thereby realizing the movement of the plug-in device 200 along the first movable track 110 .

[0078] The first movable track 110 may be a track protruding from the plane of the hull 100 or a track groove recessed in the plane of the hull 100 .

[0079] Reference Figure 2 、 Figure 4 and Figure 5 As shown, the plug-in board device 200 includes a base 210 and a plug-in board assembly 220. The base 210 is arranged on the first movable rail 110 to move along the first movable rail 110. A second movable rail 211 is provided on the base 210. The plug-in board assembly 220 is slidably arranged on the second movable rail 211. The first movable rail 110 and the second movable rail 211 are arranged vertically.

[0080] It is worth understanding that the plug-in board assembly 220 can be moved arbitrarily within a certain range in the horizontal plane through the first movable rail 110 and the second movable rail 211, so that the plug-in board assembly 220 can be moved to all plug-in board positions within a certain range. For example, when it is necessary to plug in four plug-in board positions in two rows and two columns, and the four plug-in board positions are all within the moving range of the plug-in board assembly 220, wherein the first movable rail 110 is parallel to a row of plug-in board positions, the plug-in board assembly 220 can be moved to two plug-in board positions in the same row through the first movable rail 110 for plug-in, and then moved along the plug-in board positions in the same column through the second movable rail 211, so that the plug-in board assembly 220 can plug in two plug-in board positions in the same column, realizing the plug-in of four plug-in board positions in two rows and two columns. The number of boards that can be plugged in at one time is greater, the construction efficiency is higher, and the total number of movements of the hull 100 can be further reduced.

[0081] Reference Figure 2As shown, the plug-in board assembly 220 includes a plug-in board machine 221, a movable platform 222 and a telescopic rod 223. The plug-in board machine 221 is arranged on the movable platform 222 and moves on the second movable track 211 through the movable platform 222. The plug-in board machine 221 is hingedly connected to the movable platform 222, and one end of the telescopic rod 223 is hingedly connected to the end of the plug-in board machine 221 away from the movable platform 222, and the other end of the telescopic rod 223 is hingedly connected to the end of the movable platform 222 away from the plug-in board machine 221.

[0082] It is worth noting that the movable platform 222 can be connected to the second movable track 211 via a wheel set, and its movement method can be the same as the movement method of the base 210 on the first movable track 110, which will not be repeated here.

[0083] In this embodiment, the movable platform 222 can extend out of the hull 100, and the plug-in machine 221 is set on one end of the movable platform 222 extending out of the hull 100. An operating room 224 or a counterweight can be set at the other end of the movable platform 222 to balance the overall balance of the movable platform 222.

[0084] In this embodiment, the operating room 224 or the counterweight is also slidably connected to the second movable track 211. The operating room 224 or the counterweight arranged at the other end of the activity can move in a direction away from the end where the plug-in machine 221 is located. When the plug-in machine 221 moves to the water surface along the second movable track 211, the operating room 224 or the counterweight also moves along the second movable track 211 and the direction of the plug-in machine 221, thereby balancing the overall force of the hull 100, making the hull 100 more stable on the water.

[0085] It is worth understanding that the board inserter 221 is hingedly set on the movable platform 222 and is connected to the movable platform 222 through a telescopic rod 223. One end of the telescopic rod 223 is hingedly connected to the end of the board inserter 221 away from the movable platform 222, and the other end is hingedly connected to the end of the movable platform 222 away from the board inserter 221. By controlling the extension and retraction of the telescopic rod 223, the angle of the board inserter 221 relative to the water surface is controlled, so that the board inserter 221 can control the board to be vertically inserted into the water, so that the actual construction is more in line with the theoretical requirements and the construction quality is improved.

[0086] The operating room 224 is electrically connected to the telescopic rod 223 and the board inserter 221 , so that the telescopic rod 223 and the board inserter 221 can be controlled in the operating room 224 .

[0087] It is worth noting that the structure of the board inserter 221 is common knowledge to those skilled in the art and will not be described in detail here.

[0088] Reference Figure 3 and Figure 4 As shown, there are multiple board devices 200 .

[0089] It is worth understanding that a plurality of board insertion devices 200 can perform board insertion simultaneously, and the board insertion efficiency is further improved.

[0090] In some specific embodiments of the present invention, a vacuum device for vacuuming is provided on the hull 100 .

[0091] It is worth understanding that after the permeable material 700 is laid, a drainage channel is formed, and the drainage channel is connected to the vacuum device through water collection, so that the vacuum device vacuums the soft foundation to drain the water from the underwater soft foundation and achieve compaction of the underwater soft foundation.

[0092] In addition, the vacuum device can also be set up on the shore and connected to the drainage channel only through the water collection pipe.

[0093] Reference Figure 3 and Figure 4 As shown, the hull 100 further includes a guide device 300 , which is transmission-connected to the hull 100 and is used to guide the movement of the hull 100 .

[0094] It is worth understanding that the hull 100 can be moved by the guide device 300, so that the movement accuracy of the hull 100 is higher each time, thereby improving the movement accuracy of the hull 100 and further improving the construction accuracy.

[0095] Specifically, there are two guide devices 300, which are relatively arranged at the two ends of the hull 100. The guide devices 300 include a winch 310, a guide wheel 320 and a cable 330. The winch 310 and the guide wheel 320 are fixed on the hull 100, and one end of the cable is fixed to the shore and the other end is fixedly connected to the winch 310; when the winch 310 of one guide device 300 is reeled, the winch 310 of the other guide device 300 is unreeled, so that the hull 100 moves toward the side where the reeled winch 310 is located. When fixation is required, both guide devices 300 are reeled in to tighten the cable to achieve fixation of the hull 100.

[0096] The following is an exemplary description using a specific embodiment. It is worth noting that the following content is only used to assist in understanding the present solution and does not constitute a specific limitation to the present solution.

[0097] Multiple small floating bodies are assembled into a construction vessel, which can be transported by truck or small barge.

[0098] A first movable track 110 is laid on the construction ship. The first movable track 110 is arranged from the center of the ship to the end of the ship. A plug-in device 200 is arranged on the first movable track 110. The plug-in device 200 is slidably connected to the first track through a base 210. The base 210 serves as the main load-bearing platform.

[0099] A second movable track 211 is set on the board insertion device 200, and the second movable track 211 is set along the direction from the center of the ship to the side of the ship. The board insertion machine 221 is slidably set on the second movable track 211 through a movable platform 222. The board insertion machine 221 is set on the side of the movable platform 222 that can extend out of the hull 100, and the operating room 224 is set on the side of the movable platform 222 close to the center of the ship.

[0100] The board inserter 221 is hingedly disposed on the movable platform 222 and is hingedly connected to the movable platform 222 via a telescopic rod 223 to control the angle of the board inserter 221 relative to the movable platform 222 .

[0101] The construction boat enters the water, and is moved to a preset position by two relative guide devices 300, and then fixed.

[0102] The base 210 moves along the first movable rail 110 to the first preset board insertion position of the first column, so that the board insertion machine 221 and the first preset board insertion position are located on the extension line of the second movable rail 211, and the movable platform 222 is driven to move along the second movable rail 211, so that the board insertion machine 221 is aligned with the first preset board insertion position and inserts the board.

[0103] After the board insertion at the first preset board insertion position is completed, the movable platform 222 moves along the second movable track 211 to the second preset board insertion position of the first column to insert the board.

[0104] After completing the board insertion at the second preset board insertion position of the first column, the base 210 moves along the first moving track 110, and the board insertion machine 221 moves to the second preset board insertion position of the second column to insert the board.

[0105] After the insertion of the second preset board insertion position in the second column is completed, the movable platform 222 moves along the second movable track 211 to the first preset board insertion position in the second column to insert the board.

[0106] Complete the serpentine board and repeat this serpentine cycle.

[0107] After the board insertion device 200 completes the board insertion, the construction ship is moved by the two guide devices 300 to insert the boards in the next area until all areas are completed.

[0108] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A method for constructing a vacuum preloading drainage channel on an underwater soft foundation, characterized in that: include: At all construction locations, control the construction vessel to install drainage pipes below the mud layer to drain water. The specific steps are as follows: S1: Lay a plurality of first positioning members at the construction location, form a longitudinal positioning line along the connecting direction of the plurality of first positioning members, and extend perpendicular to the longitudinal positioning line along the water side to form a transverse positioning line; S2: Assemble the construction vessel and move it along the transverse positioning line or the longitudinal positioning line; S3: The construction vessel is provided with a hull, and a plate inserting device is provided on the hull. The plate inserting device can be moved relative to the hull to different plate inserting positions, and the plate inserting device is used for inserting plates; S4: When the construction vessel arrives at a construction location, the plate inserting device is controlled to move relative to the vessel body to a plate inserting position; S5: The inserting plate device is inserted into the hollow casing through the mud layer to the depth of the underwater foundation; S6: Fill the casing with water-permeable material, insert the drainage pipe until it contacts the water-permeable material, and provide a sealing cap at the contact end of the drainage pipe, which is water-permeable; S7: Remove the cannula; S8: Control the plate inserting device to move relative to the hull and move to the next plate inserting position, and repeat steps S5 to S7 until all the plate inserting positions that the plate inserting device can move to relative to the hull are completed.

2. The method for constructing a vacuum preloading drainage channel on an underwater soft foundation according to claim 1, characterized in that: The plate inserting device can move relative to the hull along the direction of the transverse positioning line.

3. The method for constructing a vacuum preloading drainage channel on an underwater soft foundation according to claim 1 is characterized in that: The plate inserting device can move relative to the hull along the direction of the longitudinal positioning line.

4. The method for constructing a vacuum preloading drainage channel on an underwater soft foundation according to claim 1, characterized in that: Control the construction vessel to move along the transverse orientation line to the next construction location.

5. The method for constructing a vacuum preloading drainage channel on an underwater soft foundation according to claim 1 or 4, characterized in that: Control the construction vessel to move along the longitudinal positioning line to the next construction position.

6. The method for constructing a vacuum preloading drainage channel in an underwater soft foundation according to claim 5, characterized in that: A plurality of first positioning members are arranged on a plurality of first positioning plates, each first positioning member corresponds to each first positioning plate one by one, and two adjacent first positioning plates are overlapped and connected.

7. The method for constructing a vacuum preloading drainage channel in an underwater soft foundation according to claim 6, characterized in that: The number of the first positioning plates is two, and the number of the first positioning members is also two; When the construction vessel corresponds to the first positioning member of a first positioning plate, another first positioning plate overlaps one end of the first positioning plate and is located in the moving direction of the construction vessel along the longitudinal positioning line; When the construction vessel completes construction at all positions on a first positioning plate, the construction vessel moves along the longitudinal positioning line to another first positioning plate, removes the connection end of the first positioning plate from the other first positioning plate, and moves the first positioning plate to the other end of the other first positioning plate, located in the moving direction of the construction vessel along the longitudinal positioning line; Repeat the above steps until the construction of the construction vessel along the longitudinal positioning line is completed.

8. A construction device, characterized in that: The underwater soft foundation vacuum preloading drainage channel construction method according to any one of claims 1 to 7 can be used for construction.

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