Marine soft soil layer structure anti-waterboard suspended space filling device and method thereof

Abstract

The application provides a marine soft soil layer structure water-resistant plate under-suspended space filling device, which comprises a water-resistant plate and a suspended area under the plate, the suspended area under the plate is located in a soft soil layer, and a bearing layer is below the soft soil layer; a plurality of workbenches are built in the suspended area under the plate, and the workbenches are connected and fixed with enclosure piles inserted into the soft soil layer and the bearing layer; a terminal control system, a monitoring robot, a plurality of uniformly distributed monitoring points, a modified backfill soil preparation machine, a pumping machine and a discharge pipe are arranged on the water-resistant plate; an oil pump, a hydraulic servo motor and a three-dimensional scanner are arranged on the workbenches; and the terminal control system is in communication connection with the monitoring robot, the pumping machine, the oil pump and the three-dimensional scanner. A filling method based on the device comprises the following steps: S1, enclosure pile construction; S2, workbench building; S3, device placing; S4, one-time jacking of the water-resistant plate; S5, three-dimensional scanning; S6, two-time jacking of the water-resistant plate; S7, modified backfill soil backfilling; S8, filling of the suspended area under the plate; S9, compactness detection; S10, pressure relief and springback of the water-resistant plate; and S11, recovery device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building cavity filling, in particular to a kind of marine soft soil layer structure anti-water board under-suspended space filling device and method thereof. BACKGROUND

[0002] With the rapid development of national economy, the scale of economically developed coastal cities is growing, and the number of buildings is increasing. There are a large number of soft soil layers in coastal areas, which have low strength, large compressibility, and high water content, which determines that it is a soil layer with very poor engineering geological conditions. During construction, large deformation may occur, which may cause engineering problems, such as soil slip causing suspended phenomenon under the structure board.

[0003] Currently, plain concrete, cement mortar and earthwork are mainly used for backfilling, which mainly has five problems: 1) Because the relative specific gravity of plain concrete or cement mortar is larger than that of soft soil, large settlement often occurs, resulting in a backfill gap between the backfill soil and the structure board after backfilling; 2) The cost of backfilling with mortar or plain concrete is large; 3) Mortar, plain concrete and soft soil have fluidity, and a containment is needed before backfilling to limit the flow; 4) Due to the backfilling method, there are a large number of gaps under the board, which are not dense enough; 5) Backfilling construction is often backfilled to the bottom elevation of the board, and subsequent construction is carried out without waiting for the settlement to be completed, which affects the stress of the structure board. Therefore, how to scientifically and effectively, safely and environmentally, fill the space under the structure board is a problem that needs to be solved. SUMMARY

[0004] The purpose of the present application is to provide a simple and easy-to-use, low-cost, short-period, and effective filling device and method for filling the space under the structure board of marine soft soil layer.

[0005] In order to achieve the above-mentioned purpose, the present application realizes the following technical solutions:

[0006] The marine soft soil layer structure anti-water board under-suspended space filling device comprises a structure anti-water board and a suspended area under the board, the suspended area under the board is located in a soft soil layer, and a bearing layer is below the soft soil layer. A plurality of workbenches are built in the suspended area under the board, and the workbenches are connected and fixed with containment piles inserted into the soft soil layer and the bearing layer;

[0007] A terminal control system, a monitoring robot, a plurality of uniformly distributed monitoring points, a modified backfill soil preparation machine, a pump and a discharge pipe are arranged on the structure anti-water board. The monitoring robot collects height parameters at the monitoring points, and the modified backfill soil prepared by the modified backfill soil preparation machine is pumped into the suspended area under the board through the pump and the discharge pipe.

[0008] The workbench is provided with an oil pump, a hydraulic servo motor and a three-dimensional scanner, the hydraulic servo motor transmits force through a cushion plate, and then jacks up the water-resistant plate, and the three-dimensional scanner is used to scan the volume and shape of the suspended area below the plate.

[0009] The terminal control system is in communication connection with the monitoring robot, the pumping machine, the oil pump and the three-dimensional scanner respectively.

[0010] Further, the lower surface of the water-resistant plate is attached to a compactness detection plate, and a mechanical arm console is further arranged on the water-resistant plate, the mechanical arm console is connected to a paint bucket through a micro mechanical arm, and the paint bucket is used to spray and fill the gap between the water-resistant plate and the backfill soil; the terminal control system is in communication connection with the compactness detection plate and the mechanical arm console respectively.

[0011] The method for filling the suspended space below the water-resistant plate in a marine soft soil layer structure comprises the following steps:

[0012] S1) Construction of enclosing piles

[0013] The enclosing piles are constructed in the range of the suspended area below the plate to enclose the space to be filled below the water-resistant plate; wherein double-row piles are used at the workbench;

[0014] S2) Workbench erection

[0015] A plurality of workbenches are placed on the double-row piles, the enclosing piles on the lower side of the workbench are aligned with the embedding grooves of the enclosing piles and are fixedly connected using high-strength bolts;

[0016] S3) Device placement

[0017] Monitoring points and monitoring robots are arranged on the water-resistant plate, the monitoring points are arranged in a triangular shape as a whole, and the monitoring robots are arranged outside the deformation range and the settlement range of the water-resistant plate;

[0018] The hydraulic servo motor and the three-dimensional scanner are fixed on each workbench respectively;

[0019] Each device is connected to the terminal control system through a line and is debugged;

[0020] S4) Jacking up of the water-resistant plate

[0021] The monitoring robot is started to monitor, the elevation of the monitoring points is fed back to the terminal control system, and the height difference is determined in combination with the design elevation of the water-resistant plate;

[0022] The terminal control system controls the hydraulic servo motor on each workbench to jack up, so that the water-resistant plate reaches the design elevation;

[0023] S5) Three-dimensional scanning

[0024] Start the three-dimensional scanner on each workstation to scan the suspended area under the structural water-resistant plate, and transmit the scanning data to the terminal control system to determine the volume and shape of the suspended area under the plate;

[0025] S6) Secondary lifting of the structural water-resistant plate

[0026] Start the hydraulic servo motor to continue lifting the structural water-resistant plate, and the structural water-resistant plate forms an upward arc under the action of the hydraulic servo motor;

[0027] S7) Improved backfilling of backfill soil

[0028] Connect the improved backfill soil preparation machine, the pumping machine and the discharge pipe on the structural water-resistant plate in sequence, and connect them to the terminal control system;

[0029] Put the site excavated earthwork and the modifier into the improved backfill soil preparation machine, and then pump the backfill to the suspended area under the plate through the pumping machine and the discharge pipe;

[0030] S8) Filling of the suspended area under the plate

[0031] After the improved backfill soil settles stably, install the density detection plate, and connect the density detection plate and the mechanical arm console to the terminal control system, and the mechanical arm console controls the miniature mechanical arm and the paint bucket to extend into the gap between the improved backfill soil and the structural water-resistant plate for spraying;

[0032] S9) Density detection

[0033] During the spraying process, the density detection plate detects the density of the gap filling under the plate in real time, and the position is sprayed again for the second time until the gap filling is completed;

[0034] S10) Pressure relief and rebound of the structural water-resistant plate

[0035] Reduce the lifting height of the hydraulic servo motor through the terminal control system, and the structural water-resistant plate rebounds and presses the expanded paint and the improved backfill soil downward;

[0036] S11) Recycling device

[0037] Recycle each device in sequence, disassemble the workbench, and recycle the stretch containment pile.

[0038] Further, in step S7), the terminal control system controls the pumping machine to adjust the discharge speed of the discharge pipe, and controls the outlet direction of the discharge pipe to adjust the discharge position.

[0039] Further, in step S7), the outside of the containment pile is symmetrically backfilled according to the backfill height of the improved backfill soil, so as to keep the pressure on both sides of the containment pile basically flat.

[0040] Compared with the prior art, the present application has the following advantages:

[0041] (1) The method realizes the filling of the space under the plate. The marine soft soil and the suspended structure are difficult to be constructed by heavy machinery. The method reduces the filling range by temporary retaining piles, and builds a workbench to perform earth filling operation.

[0042] (2) Reduce the backfill gap and control the late settlement. The method uses the expansion filling material to fill the gap in the backfill construction and counteract the arch pressure of the backfill body. The method effectively reduces the gap generated in the backfill process. The method reduces the late settlement by means of layered backfill, settlement monitoring and symmetrical backfill.

[0043] (3) Intelligent operation and green environmental protection. The plate top elevation monitoring, filling space measurement, improved backfill soil backfill and gap filling are automatically completed, reducing manual operation. The device components can be recycled and reused, avoiding environmental damage and resource waste caused by leaving soil in the soil. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is the schematic diagram of the structure water-resistant plate under the suspended space filling of the present application.

[0045] Figure 2 is the schematic diagram of the structure water-resistant plate under the suspended space filling of the present application.

[0046] Figure 3 is the compactness monitoring schematic diagram of the present application.

[0047] Figure 4 is Figure 2 is the 1-1 cross-sectional view of the present application.

[0048] Figure 5 is Figure 2 is the 2-2 cross-sectional view of the present application.

[0049] Figure 6 is the workbench plane schematic diagram of the present application.

[0050] Figure 7 is the workbench cross-sectional view schematic diagram of the present application.

[0051] The drawings show that: 1, the structure water-resistant plate; 2, the retaining pile; 3, the workbench; 4, the suspended area under the plate; 5, the terminal control system; 6, the monitoring robot; 7, the monitoring point; 8, the hydraulic servo motor; 9, the pad; 10, the oil pump; 11, the three-dimensional scanner; 12, the compactness detection plate; 13, the mechanical arm control console; 14, the miniature mechanical arm; 15, the paint bucket; 16, the pumping machine; 17, the improved backfill soil preparation machine; 18, the discharge pipe; 19, the soft soil layer; 20, the bearing layer; 21, the improved backfill soil; 22, the plate bottom gap; 23, the expansion sprayed material; 24, the settlement stable curve; 25, the retaining pile embedded groove; 26, the baffle; 27, the line. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0053] The waterproofing panels at Building 5 and other locations on a certain plot of land experienced landslides at the corners of the panels due to the surrounding soil being too poor, highly plastic, and exposed for a long time, resulting in elevation differences. The maximum depth was approximately 2m, covering an area of ​​approximately 20m². The basement pit floor cushion had a bottom elevation of -6.5m, with an excavation depth of approximately 4.5m, with a partial excavation depth of approximately 5.6m. The pit circumference was approximately 884m. Geotextile was used as the permeable membrane, steel sheet piles were used for temporary enclosures, and a high-water-swelling slurry was used as the expansive filler, which increased its strength and elastic modulus.

[0054] like Figures 1-7 As shown, the device for filling the suspended space under a structural waterproof plate in a marine soft soil layer includes a structural waterproof plate 1 and a suspended area 4 under the plate. The suspended area 4 under the plate is located in a soft soil layer 19 and is formed by sliding of the soft soil layer 19. Below the soft soil layer 19 is a bearing layer 20. Three work platforms 3 are built in the suspended area 4 under the plate. The work platforms 3 are connected and fixed to the retaining piles 2 inserted into the soft soil layer 19 and the bearing layer 20. The work platforms 3 are provided with retaining pile embedding grooves 25 on the lower side, and the work platforms 3 are connected and fixed to the retaining piles 2 through the retaining pile embedding grooves 25. Three baffles 26 are provided on the upper edge of the work platforms 3.

[0055] The structural waterproof board 1 is provided with a terminal control system 5, a monitoring robot 6, six evenly distributed monitoring points 7, an improved backfill soil preparation machine 17, a pumping machine 16, and a discharge pipe 18. The monitoring robot 6 collects the height parameters at the monitoring point 7. The improved backfill soil 21 produced by the improved backfill soil preparation machine 17 is pumped into the suspended area 4 under the board through the pumping machine 16 and the discharge pipe 18. The improved backfill soil 21 is backfilled in layers from low to high, and the single backfill height is not more than 50 cm.

[0056] An oil pump 10, a hydraulic servo motor 8 and a three-dimensional scanner 11 are provided on the workbench 3. The hydraulic servo motor 8 transmits force through the pad 9 to control the lifting of the structural waterproof plate 1. The three-dimensional scanner 11 is used to scan the volume and shape of the suspended area 4 under the plate.

[0057] A density detection plate 12 is attached under the structural waterproof board 1, and a robotic arm console 13 is also provided on the structural waterproof board 1. The robotic arm console 13 is connected to a paint bucket 15 through a micro robotic arm 14. The paint bucket 15 is used to spray and fill the gap between the structural waterproof board 1 and the improved backfill soil 21.

[0058] The terminal control system 5 is respectively connected with the monitoring robot 6, the pumping machine 16, the oil pump 10, the three-dimensional scanner 11, the compactness detection plate 12 and the mechanical arm control console 13 through lines 27, collects monitoring data and filling space volume, shape and the like, and carries out hydraulic servo control, improved backfill conveying control and spraying control.

[0059] Preferably, the fender pile 2 under the workbench 3 needs to have a bearing capacity and a soil retaining function; double-row piles are used at the workbench 3 to improve the bearing capacity; the depth of the fender pile 2 into the bearing stratum 20 is referenced from design or specification values.

[0060] Embodiments of the present application are as follows:

[0061] S1) Fender pile construction

[0062] The fender pile 2 is constructed in the landslide range to avoid further expansion of the landslide. In this embodiment, a tensile steel sheet pile is used for construction, the piling range exceeds the landslide range by 1 m, the top of the pile is higher than the bottom of the structural plate by 0.5 m, and the construction is carried out from one side of the bottom plate to the other side to surround the space to be filled under the plate, wherein double-row piles are used at the workbench 3, and the top of the pile is lower than the bottom of the plate by 0.5 m.

[0063] S2) Workbench erection

[0064] The workbench 3 is placed on the double-row steel pipe piles, the fender pile embedding groove 25 is aligned with the fender pile 2, and then fixed with high-strength bolts, and after fixing, the distance between the baffle 26 and the bottom of the structural water-resistant plate 1 is 5 cm. In this embodiment, there are three places to place the workbench 3.

[0065] S3) Device placement

[0066] The monitoring points 7 are arranged on the structural water-resistant plate 1, the monitoring points 7 are arranged in a triangular shape as a whole, the number is at least three, the spacing is 10 m~15 m, and temporary protection is made, and the monitoring robot 6 is not in the deformation range and the settlement range of the structural water-resistant plate 1. The hydraulic servo motor 8 and the three-dimensional scanner 11 are fixed on the workbench 3 below the structural water-resistant plate 1, and then the devices are connected to the terminal control system 5 and debugging is completed. In this embodiment, six monitoring points 7 are used.

[0067] S4) Structural water-resistant plate jacking

[0068] The monitoring robot 6 is started to monitor, the elevation of the monitoring points 7 is fed back to the terminal control system 5, the height difference is determined in combination with the design elevation of the structural water-resistant plate 1; then the terminal control system 5 controls the hydraulic servo motor 8 to jacking, so that the structural water-resistant plate 1 reaches the design elevation. During the jacking process, the jacking speed is controlled, and the monitoring frequency of the monitoring robot 6 is controlled. In this embodiment, three hydraulic servo motors 8 are used, and are numbered No. 1, No. 2 and No. 3, and are arranged in counterclockwise order.

[0069] S5)Three-dimensional scanning

[0070] After the structural water-resistant plate 1 is jacked to the design elevation, the three-dimensional scanner 11 is started to scan the suspended area 4 under the plate after the elevation of the structural water-resistant plate 1 is stable, and then the data is transmitted to the terminal control system 5 to determine the volume and shape of the suspended area 4 under the plate. Three three-dimensional scanners 11 are used for monitoring in this embodiment, and the terminal control system 5 screens the data as a whole to ensure the accuracy of the test results.

[0071] S6)Secondary jacking

[0072] After the scanning is completed, the hydraulic servo motor 8 is started to continue jacking the structural water-resistant plate 1. First, the No. 2 hydraulic servo motor 8 is jacked, and the structural water-resistant plate 1 forms an upward arc under the action of the hydraulic servo motor 8, and the jacking height is 1 / 1000~3 / 1000 of the plate width. The No. 1 and No. 3 hydraulic servo motors 8 are jacked according to the corresponding height of the arc. During the jacking process, the elevation of the monitoring point 7 is monitored in real time by the monitoring robot 6, and the elevation of the top of the structural water-resistant plate 1 is adjusted in time.

[0073] S7)Improved backfilling

[0074] The pumping machine 16, the improved backfill soil preparation machine 17 and the discharge pipe 18 are connected in turn, and the terminal control system 5 is connected. The on-site excavated earth and the modifier are put into the improved backfill soil preparation machine 17, and then pumped and backfilled into the suspended area 4 under the plate through the pumping machine 16 and the discharge pipe 18. The terminal control system 5 controls the pumping machine 16 to adjust the discharging speed of the discharge pipe 18, and controls the outlet direction of the discharge pipe 18 to adjust the discharging position. After each backfilling is completed, the improved backfill soil 21 settles, and the suspended area 4 under the plate is scanned by the three-dimensional scanner 11 at regular intervals to determine whether the settlement is stable. After the settlement is stable, continue to backfill until the backfilling reaches the baffle 26, which is 5 cm away from the bottom of the structural water-resistant plate 1. The backfilling outside the fender pile 2 is symmetrically backfilled according to the backfilling height of the improved backfill soil 21, so as to keep the pressure on both sides of the fender pile 2 basically flat. This embodiment is backfilled four times, and the filling heights are 50 cm, 50 cm, 50 cm and 45 cm respectively.

[0075] S8)Filling of the gap under the plate

[0076] After the improved backfill soil 21 settles stably, the density detection plate 12 is installed, and the density detection plate 12 and the mechanical arm console 13 are connected to the terminal control system 5. The mechanical arm console 13 controls the miniature mechanical arm 14 and the paint bucket 15 to extend into the plate bottom gap 22 between the improved backfill soil 21 and the structural water-resistant plate 1 for spraying, and the inside and outside are sprayed in turn at a uniform speed.

[0077] S9)Density detection

[0078] Spraying uses the expansion coating 23, which will self-expand after spraying and extrude air to fill the gap. The density detection plate 12 is used to detect the density of the gap filling in real time during the spraying process, and the position of the filling is determined to be sprayed again in time until the gap filling is completed.

[0079] S10) Pressure relief rebound

[0080] The terminal control system 5 reduces the lifting height of the hydraulic servo motor 8, and the structure of the water plate 1 rebounds downward to extrude the expansion coating 23 and the improved backfill soil 21, further extruding the hollow gap in the filling body, improving the soil density, and reducing the gap number and later settlement.

[0081] S11) Device recycling

[0082] The devices are disassembled and recycled in sequence, the disassembly workbench is used to recycle the stretched steel sheet pile, and the cleaned device is ready for next use.

[0083] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of improvements and refinements can be made, which should be considered within the scope of protection of the present application.

Claims

1. A marine soft soil layer structure water-resistant plate under-suspended space filling device, comprising a water-resistant plate and a suspended space under the plate, the suspended space under the plate is located in a soft soil layer, and a bearing layer is below the soft soil layer, characterized in that: The plate underhanging area builds several workbenches, and the workbenches are connected and fixed with the retaining piles inserted into the soft soil layer and the bearing layer; ​ The terminal control system, the monitoring robot, the several evenly distributed monitoring points, the improved backfill soil preparation machine, the pumping machine and the discharge pipe are arranged on the structure water resisting plate, the monitoring robot collects the height parameters at the monitoring points, the improved backfill soil prepared by the improved backfill soil preparation machine is pumped into the plate underhanging area through the pumping machine and the discharge pipe; The oil pump, the hydraulic servo motor and the three-dimensional scanner are arranged on the workbench, the hydraulic servo motor transmits force through the gasket, and then the structure water resisting plate is jacked up, and the three-dimensional scanner is used to scan the volume and shape of the plate underhanging area; The terminal control system is respectively connected with the monitoring robot, the pumping machine, the oil pump and the three-dimensional scanner.

2. The marine soft soil stratum structure water under anti-plate suspended space filling device according to claim 1, characterized in that: The lower surface of the structure water resisting plate is attached to the compactness detection plate, and the mechanical arm console is further arranged on the structure water resisting plate, the mechanical arm console is connected with the paint bucket through the micro mechanical arm, and the paint bucket is used to spray and fill the gap between the structure water resisting plate and the backfill soil; and the terminal control system is respectively connected with the compactness detection plate and the mechanical arm console.

3. A method for filling the space under the water-resistant board in a marine soft soil layer structure, characterized in that The method comprises the following steps: S1) retaining pile construction The retaining pile construction is carried out in the plate underhanging area, and the space to be filled under the structure water resisting plate is surrounded; wherein double-row piles are used at the workbench; S2) workbench construction Several workbenches are placed on the double-row piles, the fixed retaining piles under the workbench are embedded into the embedding grooves of the retaining piles and are connected and fixed by high-strength bolts; S3) device arrangement The monitoring points and the monitoring robot are arranged on the structure water resisting plate, the monitoring points are arranged in a triangular shape as a whole, and the monitoring robot is arranged outside the deformation range and the settlement range of the structure water resisting plate; The hydraulic servo motor and the three-dimensional scanner are respectively fixed on each workbench; Each device is respectively connected to the terminal control system through a line and is debugged; S4) first jacking of the structure water resisting plate The monitoring robot is started to monitor, the elevation of the monitoring points is fed back to the terminal control system, and the height difference is determined in combination with the design elevation of the structure water resisting plate; The terminal control system controls the hydraulic servo motor on each workbench to jack up, so that the structure water resisting plate reaches the design elevation; S5) three-dimensional scanning The three-dimensional scanner on each workbench is started to scan the plate underhanging area of the structure water resisting plate, and the scanning data is transmitted to the terminal control system to determine the volume and shape of the plate underhanging area; S6) second jacking of the structure water resisting plate The hydraulic servo motor is started to continue jacking the structure water resisting plate, and the structure water resisting plate forms an upward arc under the action of the hydraulic servo motor; S7) improved backfill soil backfilling The improved backfill soil preparation machine, the pumping machine and the discharge pipe on the structure water resisting plate are connected in sequence and are connected to the terminal control system; The site excavated earthwork and the modifier are put into the improved backfill soil preparation machine, and then the improved backfill soil is pumped into the plate underhanging area through the pumping machine and the discharge pipe; S8) filling of the plate underhanging area After the improved backfill soil is settled stably, the compactness detection plate is installed, the compactness detection plate and the mechanical arm console are connected to the terminal control system, and the mechanical arm console controls the micro mechanical arm and the paint bucket to spray into the gap between the improved backfill soil and the structure water resisting plate; S9) compactness detection During the spraying process, the compactness of the gap filling under the plate is detected in real time by the compactness detection plate, and secondary spraying is performed for the non-compact position until the gap filling is completed. S10) Structural water-resistant plate pressure relief rebound The terminal control system reduces the lifting height of the hydraulic servo motor, the structural water-resistant plate rebounds, and the expanded coating and the improved backfilling soil are squeezed downward; S11) Recycling device The devices are sequentially disassembled and recycled, the workbench is disassembled, and the stretching containment pile is recycled.

4. The method for filling the suspended space under the structural water-resistant plate in the marine soft soil layer structure according to claim 3, characterized in that: In step S7), the terminal control system controls the pumping machine to adjust the discharging speed of the discharging pipe and controls the outlet direction of the discharging pipe to adjust the discharging position.

5. The method for filling the suspended space under the structural water-resistant plate in the marine soft soil layer structure according to claim 4, characterized in that: In step S7), the containment pile is symmetrically backfilled according to the backfilling height of the improved backfilling soil on the outside of the containment pile to keep the pressure on both sides of the containment pile basically flat.

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