Device and method for rapidly reinforcing and rescuing side slope

By using steel pipe and polymer synergistic grouting technology, a three-dimensional anti-sliding system was constructed, which solved the problem of poor slope reinforcement effect, achieved rapid reinforcement and stability, and has the dual functions of anchor support and seepage control.

CN121024073APending Publication Date: 2025-11-28SUN YAT SEN UNIV
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Patent Information

Application Number
CN202511244798.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-11-28

AI Technical Summary

Technical Problem

Existing technologies have problems with poor reinforcement effect and low stability in slope reinforcement, especially in dike projects, where traditional methods are difficult to achieve the dual goals of seepage control and anti-sliding stability.

Method used

The technology employs a combination of steel pipe and two-component polymer grouting. By dynamically injecting polymer materials through grouting equipment, a honeycomb-shaped flexible anchor body is formed. Combined with the pre-installed steel pipe and the soil to form a gradient coordinated deformation mechanism, a three-dimensional anchoring system is constructed. This achieves a seamless integration of drilling, grouting, and tensioning processes, forming a composite reinforcement layer from the inside out. This layer includes a high-strength anchoring unit in the core area, a middle layer of soil structure reconstruction, and an outer layer of seepage prevention curtain, thus constructing a three-dimensional anti-sliding system.

Benefits of technology

It achieves rapid reinforcement and stabilization of slopes, breaks through the limitations of traditional grouting and curing cycles, and forms an overall anti-sliding structure suitable for loose landslides. It has the dual functions of anchoring support and seepage control, improving the stability and seepage prevention effect of slopes.

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Abstract

The device comprises a frame structure, a plurality of grouting structures and grouting equipment, the grouting structures are arranged on the frame structure, the grouting structures are connected with the grouting equipment through grouting pipes, each grouting structure comprises a steel floral tube, a main grouting pipe and an auxiliary grouting pipe assembly, and the steel floral tubes are connected with the grouting equipment through grouting pipes. Spiral flow guide ribs and steel floral tube permeation holes are arranged on the periphery of the steel floral tube, the main grouting tube is arranged in the steel floral tube, and the auxiliary grouting tube assembly is arranged on the outer side of the steel floral tube and used for blocking gaps between the periphery of the steel floral tube and the grouting holes. The method mainly aims at the situation that the slope is unstable and needs to be reinforced immediately due to contact leakage of the dike, the high polymer and the steel floral tube anchoring technology are combined, and seepage prevention, reinforcement and slope instability prevention can be achieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of embankment slope repair, in particular to a slope rapid reinforcement rescue device and method. BACKGROUND

[0002] As the core barrier of the flood control system, the stability of the embankment engineering is directly related to the safety of life and property and regional economy. However, the contact zone between the embankment and the through-embankment structures (such as culverts and pipelines) often has seepage diseases due to geological differences or construction defects. Seepage erosion leads to the loss of fine particles in the soil, causing internal erosion cavities in the slope, reducing the shear strength of the soil, and ultimately inducing slope instability and even embankment collapse risk.

[0003] For such diseases, scholars have proposed various treatment technologies, such as traditional cement grouting, cutoff wall seepage, and micro anti-slide pile reinforcement. However, the existing technologies have significant defects: 1) the poor flowability and high shrinkage rate of cement slurry make it difficult to effectively fill the seepage channels and internal erosion cavities, and the durability is insufficient; 2) the single micro pile group has weak anti-deformation ability and is prone to secondary damage due to local stress concentration; 3) traditional anchor reinforcement relies on mechanical anchoring force, which has low anchoring efficiency in loose soil, and has large construction disturbance and long construction period. In recent years, high polymer grouting technology has attracted attention due to its high expansion rate, strong permeability, and rapid curing characteristics. However, its application in embankment contact seepage repair is still limited to surface leakage plugging, and lacks collaborative design with structural reinforcement, making it difficult to achieve the dual goals of seepage control and anti-slide stability.

[0004] The existing technology, such as patent number CN108330848B, uses high polymer grouting for repair, but for disease repair in the slope, the repair technology in the existing technology has insufficient strength, low stability, and poor repair effect. SUMMARY

[0005] The purpose of the present application is to provide a slope rapid reinforcement rescue device and method, which solves the problem of poor slope reinforcement effect in the prior art.

[0006] The present application is implemented as follows: the present application provides a slope rapid reinforcement rescue device, which comprises a frame structure, a grouting structure, and a grouting equipment. The frame structure is provided with a plurality of grouting structures. The grouting structure is connected with the grouting equipment through a grouting pipe. The grouting structure comprises a steel flower pipe, a main grouting pipe, and an auxiliary grouting pipe assembly. The steel flower pipe is provided with spiral guide ribs and steel flower pipe permeation holes on the outer periphery. The main grouting pipe is placed in the steel flower pipe. The auxiliary grouting pipe assembly is placed outside the steel flower pipe to block the gap between the outer periphery of the steel flower pipe and the grouting hole.

[0007] Aiming at the leakage type landslide danger, a three-dimensional anchoring system is constructed by using steel flower pipe and two-component polymer collaborative grouting technology. Through dynamic proportioning grouting of the grouting equipment, the high polymer material with swelling and permeation characteristics is injected through the steel flower pipe penetration hole, and the material forms a honeycomb-shaped flexible anchoring body inside and outside the steel flower pipe, and a gradient coordinated deformation mechanism is formed between the pre-installed steel flower pipe and the soil to avoid the stress concentration problem of rigid support. Based on the rapid curing characteristics of the high polymer 3-5 minutes forming, the integrated seamless process chain of drilling-grouting-tensioning is realized, and the limitation of traditional grouting maintenance cycle is broken. During the grouting process, the material diffuses along the peripheral crack network of the grouting structure, forming a composite reinforcement layer from inside to outside: the core area combines with the steel flower pipe to form a high-strength anchoring unit, the middle layer reconstructs the soil structure through the swelling and compaction effect, and the outer layer forms a continuous anti-seepage curtain, and the mechanical reinforcement and seepage blocking are realized simultaneously. A group of pile collaborative anti-sliding system is constructed by arranging holes in a plum blossom shape in space, a chain of anti-sliding pile array is formed by a group of pre-stressed steel flower pipes in the vertical direction, and a space grid structure is connected into a space grid structure by using a continuous beam type high polymer consolidation body in the horizontal direction. Combined with the connection between multiple steel flower pipes through the frame structure, a group of coordinated tensioning is formed to stimulate three-dimensional stress arch effect, so that the loose landslide body is transformed into an overall anti-sliding structure composed of micro anchor pile group, composite reinforcement layer and anti-seepage system, and the dual functions of anchoring and supporting and seepage control are integrated.

[0008] The further technical scheme of the present application is that the auxiliary grouting pipe assembly comprises an auxiliary grouting pipe and a film bag arranged at the end of the auxiliary grouting pipe, and the film bag is sleeved on the outer periphery of the steel flower pipe and arranged close to the top of the grouting hole.

[0009] During grouting, the auxiliary grouting pipe is grouted first, and the gap between the outer periphery of the steel flower pipe and the grouting hole is sealed by the film bag to avoid affecting the grouting process of the main grouting pipe.

[0010] The further technical scheme of the present application is that the auxiliary grouting pipe is connected with the grouting equipment for grouting in the film bag to form a sealing end.

[0011] The sealing end effectively limits the entire grouting structure and the soil to ensure the stability during grouting.

[0012] The further technical scheme of the present application is that the end of the main grouting pipe is close to the bottom of the steel flower pipe, and the main grouting pipe is connected with the grouting equipment for grouting outside the bottom of the steel flower pipe, and then the grout flows out from the steel flower pipe penetration hole along the steel flower pipe.

[0013] The grout first reinforces the disease at the bottom of the steel flower pipe, and then spreads along the outer periphery of the steel flower pipe to further ensure the effect of disease reinforcement.

[0014] The further technical scheme of the present application is that the frame structure comprises two side continuous beams, a middle continuous beam and connecting beams, the middle continuous beam is arranged in parallel between the two side continuous beams, and the connecting beams are used for connecting the middle continuous beam and the two side continuous beams.

[0015] The frame structure is assembled, which is convenient for transportation and operation.

[0016] The further technical scheme of the present application is that the auxiliary grouting pipe assembly is fixed outside the steel flower pipe, and the steel flower pipe is fixedly connected with the frame structure, so that the overall installation is facilitated.

[0017] The further technical scheme of the present application is that the grouting equipment comprises a grouting vehicle and a high polymer material tank, a proportioning instrument and a grouting gun which are sequentially connected in the grouting vehicle, and the grouting gun is connected with the grouting structure through a grouting pipe.

[0018] The two materials in the high polymer material tank are proportioned by the proportioning instrument respectively, and then enter the grouting structure through the grouting gun and the grouting pipe respectively.

[0019] The further technical scheme of the present application is that the high polymer material tank comprises an A material tank body and a B material tank body.

[0020] The further technical scheme of the present application is that the grouting vehicle is provided with a generator for driving the grouting vehicle to move.

[0021] The present application also provides a slope rapid reinforcement rescue method, which is based on the device and comprises the following steps.

[0022] S1, detecting the distribution of slope diseases, drilling according to the distribution position of the diseases to form grouting holes, and implanting the grouting structure into the grouting holes;

[0023] S2, the auxiliary grouting pipe assembly in the grouting structure is first grouted by the grouting equipment, so that the grouting material diffuses along the radial hole to form a plugging end; then the main grouting pipe is grouted, and the grouting material first forms a grouting body at the bottom of the steel flower pipe in the process of the main grouting pipe grouting, and then flows upward along the steel flower pipe to flow out from the steel flower pipe penetration hole to form a continuous solidification layer wrapping the steel flower pipe;

[0024] S3, the top parts of the multiple grouting structures are connected by the frame structure, and a multidirectional adjusting joint compensation is arranged on the frame structure for compensating the installation error.

[0025] The present application has the following beneficial effects: the present application is mainly aimed at the situation that the embankment needs to be immediately reinforced due to contact leakage leading to slope instability, and adopts the combination of high polymer and steel flower pipe anchoring technology, which can not only prevent seepage and reinforcement, but also prevent slope instability.

[0026] The application adopts a vehicle-mounted two-component catalytic polymer grouting system, realizes directional grouting of the spiral hole of the steel flower pipe through precise dynamic proportioning and controllable pressure, the material forms a honeycomb-shaped flexible anchoring body through volume expansion, and the built-in steel flower pipe and the soil form a gradient coordinated deformation mechanism. Based on the rapid curing characteristics of the polymer, a drilling-grouting-tensioning integrated process chain is constructed to realize the generation of immediate bearing capacity of the anchor rod and break through the maintenance restrictions of the traditional method. During the grouting process, the polymer penetrates and diffuses along the pipe peripheral crack network to form a gradient composite structure from the inside to the outside, the core anchoring area provides rigid support, the middle layer reinforced soil improves the shear strength, and the peripheral impermeable layer blocks the seepage path, and mechanical reinforcement and seepage control are realized simultaneously. Based on the spatial topology of the plum blossom shape, a three-dimensional anti-slide system is constructed, the vertical direction forms a chain-type anti-slide pile system through the prestressed anchor rod group, the horizontal direction constructs a grid crown beam structure by using the assembled continuous beam, and the spatial stress synergy effect is excited by combining the group coordinated tensioning technology to form an overall anti-slide network of the micro pile group. The method forms a three-dimensional protection system of "point anchoring and permeation reinforcement, line connection and stress conduction, and surface protection and overall stability" through the deep coupling of material characteristics and structural design, and is suitable for rapid rescue and long-term stability treatment of loose landslide bodies. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 An overall schematic view of a slope rapid reinforcement rescue device provided by the application is shown in the figure.

[0028] Figure 2 A schematic view of the connection of the grouting structure and the frame structure provided by the application is shown in the figure.

[0029] Figure 3 Another perspective view of the connection of the grouting structure and the frame structure provided by the application is shown in the figure.

[0030] Figure 4 A side view of the connection of the grouting structure and the frame structure provided by the application is shown in the figure.

[0031] Figure 5 A top view of the connection of the grouting structure and the frame structure provided by the application is shown in the figure.

[0032] Figure 6 A front view of the connection of the grouting structure and the frame structure provided by the application is shown in the figure.

[0033] Figure 7 A three-dimensional schematic view of the steel flower pipe provided by the application is shown in the figure.

[0034] Figure 8 A schematic view of the grouting structure for slope repair provided by the application is shown in the figure.

[0035] Figure 9 A schematic view of the proportioning of the polymer material provided by the application is shown in the figure.

[0036] Attached reference numerals: 1. Continuous beams on both sides, 2. Continuous beam in the middle, 3. Connecting beam, 4. Steel perforated pipe, 5. Spiral guide rib, 6. Bolt, 7. Permeation hole of steel perforated pipe, 8. Main grouting pipe, 9. Auxiliary grouting pipe, 10. Polymer material, 11. Membrane bag, 12. Slope, 13. Grouting hole, 14. Grouting truck, 15. A-material grouting pipe, 16. B-material grouting pipe, 17. Proportioning instrument, 18. Polymer material box, 19. Generator, 20. Grouting gun, 21. A-material tank, 22. B-material tank. Detailed Implementation

[0037] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0038] Example 1:

[0039] like Figures 1-9 The device shown is a rapid slope reinforcement and emergency repair device, including a frame structure, a grouting structure, and grouting equipment. The frame structure is provided with multiple grouting structures, which are connected to the grouting equipment through grouting pipes. Each grouting structure includes a steel perforated pipe 4, a main grouting pipe 8, and an auxiliary grouting pipe assembly. The outer periphery of the steel perforated pipe 4 is provided with spiral guide ribs 5 and steel perforated pipe penetration holes 7. The main grouting pipe 8 is placed inside the steel perforated pipe 4, and the auxiliary grouting pipe assembly is placed outside the steel perforated pipe 4 to seal the gap between the outer periphery of the steel perforated pipe 4 and the grouting hole 13.

[0040] Aiming at the leakage type landslide hazard, a three-dimensional anchoring system is constructed by using steel flower pipe and two-component polymer collaborative grouting technology. Through dynamic proportioning grouting of grouting equipment, the high polymer material with swelling and permeation characteristics is injected through the steel flower pipe penetration hole. The material forms a honeycomb-shaped flexible anchoring body inside and outside the steel flower pipe, and a gradient coordinated deformation mechanism is formed between the pre-installed steel flower pipe and the soil to avoid stress concentration problems of rigid support. Based on the rapid curing characteristics of high polymer 3-5 minutes forming, the integrated seamless process chain of drilling-grouting-tensioning is realized, breaking through the traditional grouting maintenance cycle limit. During the grouting process, the material diffuses along the peripheral crack network of the grouting structure, forming a composite reinforcement layer from the inside to the outside: the core area combines with the steel flower pipe to form a high-strength anchoring unit, the middle layer reconstructs the soil structure through the swelling and compaction effect, and the outer layer forms a continuous anti-seepage curtain, simultaneously realizing mechanical reinforcement and seepage blocking. A group of pile collaborative anti-sliding system is constructed by spatially distributing the holes in a plum blossom shape. The vertical pre-stressed steel flower pipe group forms a chain of anti-sliding pile array, and the horizontal continuous beam type high polymer consolidation body is connected into a spatial grid structure. Combined with multiple steel flower pipes connected through the frame structure to form a group of coordinated tension to stimulate three-dimensional stress arch effect, the loose landslide body is transformed into an overall anti-sliding structure composed of micro anchor pile group, composite reinforcement layer and anti-seepage system, realizing the integration of anchoring support and seepage control functions.

[0041] In this embodiment, the steel flower pipe penetration hole 7 is distributed in a spiral shape.

[0042] In this embodiment, the auxiliary grouting pipe assembly includes an auxiliary grouting pipe 9 and a membrane bag 11 arranged at the end of the auxiliary grouting pipe 9, which is sleeved on the outer periphery of the steel flower pipe 4 and arranged close to the top of the grouting hole 13.

[0043] During grouting, the auxiliary grouting pipe is grouted first, and the gap between the outer periphery of the steel flower pipe and the grouting hole 13 is sealed by the membrane bag to avoid affecting the grouting process of the main grouting pipe.

[0044] In this embodiment, the auxiliary grouting pipe 9 is connected with the grouting equipment to form a sealing end by grouting in the membrane bag 11.

[0045] The sealing end effectively limits the entire grouting structure and the soil, ensuring the stability during grouting.

[0046] In this embodiment, the end of the main grouting pipe 8 is close to the bottom of the steel flower pipe 4, and the main grouting pipe 8 is connected with the grouting equipment to first grout the outer side of the bottom of the steel flower pipe 4, and then the grout flows out from the steel flower pipe penetration hole 7 along the steel flower pipe 4.

[0047] It ensures that the high polymer material 10 first reinforces the disease at the bottom of the steel flower pipe, and then the high polymer material 10 spreads along the outer periphery of the steel flower pipe to further ensure the effect of disease reinforcement.

[0048] In the embodiment, the frame structure comprises two side continuous beams 1, a middle continuous beam 2 arranged in parallel between the two side continuous beams 1, and connecting beams 3 for connecting the middle continuous beam 2 and the two side continuous beams 1.

[0049] The frame structure is assembled, which is convenient for transportation and operation.

[0050] In the embodiment, the steel flower pipe 4 is provided with a threaded hole, and the steel flower pipe 4 is connected with the connecting beam 3 through a bolt 6 penetrating through the threaded hole. As another embodiment, the steel flower pipe 4 can be welded on the frame structure.

[0051] In the embodiment, the auxiliary grouting pipe assembly is fixed outside the steel flower pipe 4 which is fixedly connected with the frame structure, so that the overall installation is facilitated.

[0052] In the embodiment, the grouting device comprises a grouting vehicle 14 and a high polymer material tank 18, a proportioning instrument 17 and a grouting gun 20 connected in sequence in the grouting vehicle 14, and the grouting gun 20 is connected with the grouting structure through a grouting pipe.

[0053] The two materials in the high polymer material tank are proportioned by the proportioning instrument respectively, and then enter the grouting structure through the grouting gun and the grouting pipe respectively.

[0054] In the embodiment, the high polymer material tank 18 comprises an A material tank body 21 and a B material tank body 22. The A material tank body 21 is connected with the grouting structure through the A material grouting pipe 15, the proportioning instrument 17 and the grouting gun 20, and the B material tank body 22 is connected with the grouting structure through the B material grouting pipe 16, the proportioning instrument 17 and the grouting gun 20.

[0055] In the embodiment, the A material tank body 21 stores isocyanate, and the B material tank body 22 stores polyol.

[0056] In the embodiment, the grouting vehicle 14 is provided with a generator 19 for driving the grouting vehicle 14 to move.

[0057] The application provides a slope rapid reinforcement rescue device of a high polymer composite micro anchor rod, which comprises two side continuous beams 1, a middle continuous beam 2, connecting beams 3, a steel flower pipe 4, a spiral flow guide rib 5, a bolt 6, a steel flower pipe permeation hole 7, a main grouting pipe 8, an auxiliary grouting pipe 9, a high polymer material 10, a film bag 11, a slope 12, a grouting hole 13, a grouting vehicle 14, an A material grouting pipe 15, a B material grouting pipe 16, a precision proportioning instrument 17, a high polymer material tank 18, a generator 19, a grouting gun 20, isocyanate 21 and polyol 22.

[0058] The application is achieved by the following technical scheme.

[0059] Aiming at the leakage type landslide hazard, a three-dimensional anchoring system is constructed by using the pre-drilled steel flower pipe and the two-component polymer collaborative grouting technology. Through the vehicle-mounted dynamic proportioning grouting system, the high polymer material with swelling and permeation characteristics is injected through the hole on the steel flower pipe. The material forms a honeycomb-shaped flexible anchoring body inside and outside the steel flower pipe. The pre-installed steel flower pipe and the soil form a gradient coordinated deformation mechanism, avoiding the stress concentration problem of rigid support. Based on the rapid curing characteristics of the high polymer, the material is formed in 3-5 minutes, realizing the seamless connection process chain of drilling-grouting-tensioning, and breaking through the limitation of the traditional grouting maintenance cycle. During the grouting process, the material diffuses along the circumferential crack network of the steel flower pipe, forming a composite reinforcement layer from the inside to the outside: the core area combines with the steel flower pipe to form a high-strength anchoring unit, the middle layer reconstructs the soil structure through the swelling and compaction effect, and the outer layer forms a continuous anti-seepage curtain, simultaneously realizing mechanical reinforcement and seepage blocking. A group pile collaborative anti-sliding system is constructed by arranging holes in a plum blossom shape in space. The vertical pre-stressed steel flower pipe group forms a chain of anti-sliding pile arrays, and the horizontal continuous beam type high polymer consolidation body is connected into a spatial grid structure. Combined with the group coordinated tensioning technology, the three-dimensional stress arching effect is excited, so that the loose landslide body is transformed into an overall anti-sliding structure composed of micro anchor pile group, composite reinforcement layer and anti-seepage system, realizing the integration of anchoring support and seepage control.

[0060] Embodiment two:

[0061] A slope rapid reinforcement rescue method, characterized in that: the method is based on the device of embodiment one, comprising the following steps:

[0062] S1, detect the disease distribution of the slope 12, drill according to the disease distribution position to form the grouting hole 13; implant the grouting structure to the grouting hole 13;

[0063] S2, first grout the auxiliary grouting pipe assembly in the grouting structure through the grouting equipment, so that the grouting material diffuses along the radial hole to form a plugging end; then grout the main grouting pipe 8, and in the process of grouting the main grouting pipe 8, the grouting material first forms a grouting body at the bottom of the steel flower pipe 4, and then flows upward along the steel flower pipe 4 to flow out from the steel flower pipe permeation hole 7 to form a continuous solidification layer wrapping the steel flower pipe 4;

[0064] S3, connect the top of the plurality of grouting structures with the frame structure, and the frame structure is provided with a multi-directional adjusting joint for compensating the installation error.

[0065] In this embodiment, the step S1 includes establishing a millimeter-level precision slope digital model based on three-dimensional laser scanning and multi-frequency geological radar fusion detection technology; using time-frequency analysis method to analyze the geological radar reflection wave signal, combining with Barton joint surface discrimination criterion, dynamically identifying the spatial distribution characteristics of the sliding surface.

[0066] In the embodiment, the step S1 includes implementing layered drilling control by using a full-hydraulic rotary drilling rig: a low-rotational-speed drilling mode is used for surface soil layers, and a high-frequency vibration rock breaking process is switched when a soft interlayer is encountered, drilling hole layout is completed according to a plum blossom shape topology matrix, drilling depth penetrates a sliding surface and a safety threshold is reserved, and after the hole is formed, hole debris is removed by a gas lift reverse circulation system to ensure the integrity of the hole wall structure.

[0067] In the embodiment, the step S1 includes guiding the implantation of the steel flower pipe 4 by using a laser guide positioning system, and real-time correcting the three-dimensional space posture of the steel flower pipe 4 by using a hydraulic fine adjustment device; the steel flower pipe 4 includes spiral guide ribs 5 on the outer wall to enhance the pipe-soil coupling effect, and after installation, a digital inclinometer is used to detect the perpendicularity deviation and control the uniformity of the pipe-soil gap. A double-channel grouting system is synchronously configured: a stop plug connected with the grouting gun 20 is arranged at the top of the main grouting pipe 8, the stop plug is detachably connected with the main grouting pipe 8, the main grouting pipe 8 and the stop plug form a self-balancing grouting channel, and the discharge end of the auxiliary grouting pipe 9 is bound with a hole sealing membrane bag 11 to realize dynamic sealing, thereby constructing a pipe body-soil body cooperative deformation interface.

[0068] In the embodiment, the step S2 includes implementing staged grouting by using a grouting device: first, grouting is performed through the auxiliary grouting pipe 9, so that the polymer expands and solidifies in the membrane bag 11 to form a conical hole sealing body, and the gap between the steel flower pipe 4 and the grouting hole is blocked; then, bottom anchoring grouting is performed through the main grouting pipe, pulse pressure control is used to make the material diffuse along the radial hole to form a pear-shaped anchoring end; and the material overflow from the pipe hole forms a continuous solidified layer wrapping the steel flower pipe 4. The grouting process uses the 15-20 times expansion characteristics of the material to compact the surrounding soil, thereby forming a three-dimensional reinforcement system composed of a core anchoring area, a soil body reinforcement zone and an anti-seepage curtain.

[0069] In the embodiment, immediately after the grouting body is initially solidified, prestress exceeding the design value is applied for tensioning and locking, and stress loss is monitored after 24 hours and is dynamically compensated. An assembled prestressed frame structure is used to connect the top of each grouting structure, multi-directional adjusting joints are arranged on the frame structure to compensate for installation errors, the steel flower pipe is pre-buried while the prestress is synchronously applied to the steel flower pipe, thereby constructing a two-way spatial grid structure: longitudinally forming a chain of anti-slide pile groups, and transversely forming an arch-shaped support effect through a continuous crown beam, and finally forming an overall support system with a three-dimensional stress arch effect.

[0070] In the embodiment, a distributed optical fiber sensing system is integrated during construction to monitor the stress and strain state of the grouting structure in real time; combined with the radar scanning data of the slope surface displacement, the cooperative working performance of the support system is dynamically evaluated through an inversion algorithm. When local stress exceeds the limit or deformation is abnormal, the grouting device is started to perform targeted reinforcement, so as to ensure that the three-dimensional anchoring network is always in an optimal stress state.

[0071] The polymer materials described in the above steps are all non-water reaction type two-component expanded polymer materials.

[0072] The application relates to a slope rapid reinforcement rescue method based on a high polymer composite micro anchor, and is particularly suitable for landslide instability caused by contact leakage of a dike building and slope anti-seepage reinforcement engineering.

[0073] Three-dimensional cooperative supporting system

[0074] Based on the space gridding anchoring principle, a three-dimensional supporting network with three-dimensional stress arch effect is constructed through the cooperative action of prestressed steel flower pipe groups and assembled continuous beams, and can effectively inhibit landslide displacement.

[0075] Anti-seepage anchoring double-effect fusion

[0076] The bottom pear-shaped anchoring end cooperates with the pipe peripheral root-like consolidation body; the continuous anti-seepage curtain formed by polymer material penetration crystallization has better anti-seepage effect.

[0077] Green and efficient construction process

[0078] The construction period is shortened compared with a traditional scheme by adopting a modular assembly technology; the high polymer solidification time is controllable by adopting a dynamic mixed grouting process; the soil disturbance is reduced by adopting a non-blasting hole-forming process, and the comprehensive construction energy consumption is reduced.

[0079] In summary, the slope rapid reinforcement rescue method based on the high polymer composite micro steel flower pipe disclosed by the application realizes landslide rapid stability and anti-seepage reinforcement integration through the innovative combination of a three-dimensional cooperative supporting structure and a high polymer grouting technology. The technology adopts a modular assembly process and a grouting repair technology, forms a composite reinforcement system with anchoring force and anti-seepage performance, is efficient and environmentally friendly in the construction process, and does not disturb the original structure. The stress compensation mechanism can improve the anchoring performance, and significantly improve the rescue timeliness and long-term stability. In complex working conditions such as contact leakage of a dike building and slope instability, the technology shows the comprehensive advantages of rapid response, precise repair and low environmental impact, effectively reduces the engineering cost and reduces the social and economic loss, provides an innovative solution for dike rescue engineering, and has a wide application prospect.

[0080] The above description is only the preferred embodiment of the application and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A rapid slope reinforcement and emergency repair device, characterized in that: The system includes a frame structure, a grouting structure, and grouting equipment. The frame structure is provided with multiple grouting structures. The grouting structures are connected to the grouting equipment through grouting pipes. The grouting structure includes a steel flower pipe (4), a main grouting pipe (8), and an auxiliary grouting pipe assembly. The outer periphery of the steel flower pipe (4) is provided with spiral guide ribs (5) and steel flower pipe permeation holes (7). The main grouting pipe (8) is placed inside the steel flower pipe (4). The auxiliary grouting pipe assembly is placed outside the steel flower pipe (4) to seal the gap between the outer periphery of the steel flower pipe (4) and the grouting hole (13).

2. The rapid slope reinforcement and emergency repair device according to claim 1, characterized in that: The auxiliary grouting pipe assembly includes an auxiliary grouting pipe (9) and a membrane bag (11) placed at the end of the auxiliary grouting pipe (9). The membrane bag (11) is fitted around the outer periphery of the steel pipe (4) and is positioned near the top of the grouting hole (13).

3. The rapid slope reinforcement and emergency repair device according to claim 1, characterized in that: The auxiliary grouting pipe (9) is connected to the grouting equipment to grout the membrane bag (11) to form a sealing end.

4. The rapid slope reinforcement and emergency repair device according to claim 1, characterized in that: The end of the main grouting pipe (8) is close to the bottom of the steel flower pipe (4). The main grouting pipe (8) is connected to the grouting equipment for first grouting the outer side of the bottom of the steel flower pipe (4) and then the grout flows out from the permeation hole (7) of the steel flower pipe along the steel flower pipe (4).

5. The rapid slope reinforcement and emergency repair device according to claim 1, characterized in that: The frame structure includes two continuous beams (1), a middle continuous beam (2) and a connecting beam (3). The middle continuous beam (2) is placed parallel between the two continuous beams (1), and the connecting beam (3) is used to connect the middle continuous beam (2) and the two continuous beams (1).

6. The rapid slope reinforcement and emergency repair device according to claim 1, characterized in that: The auxiliary grouting pipe assembly is fixed on the outside of the steel flower pipe (4), and the steel flower pipe (4) is fixedly connected to the frame structure.

7. The rapid slope reinforcement and emergency repair device according to claim 1, characterized in that: The grouting equipment includes a grouting vehicle (14) and a polymer material box (18), a proportioning instrument (17) and a grouting gun (20) connected in sequence inside the grouting vehicle (14). The grouting gun (20) is connected to the grouting structure through a grouting pipe.

8. The rapid slope reinforcement and emergency repair device according to claim 7, characterized in that: The polymer material box (18) includes a material A container (21) and a material B container (22).

9. The rapid slope reinforcement and emergency repair device according to claim 7, characterized in that: The grouting vehicle (14) is equipped with a generator (19) for driving the movement of the grouting vehicle (14).

10. A method for rapid slope reinforcement and emergency repair, characterized in that: The method, based on the apparatus according to any one of claims 1-9, includes the following steps: S1. Detect the distribution of slope defects, drill holes according to the location of the defects to form grouting holes (13); align the grouting holes (13) with the grouting structure and insert the grouting structure. S2. After grouting the auxiliary grouting pipe assembly in the grouting structure through the grouting equipment, the grouting material diffuses along the radial holes to form a sealing end; then the main grouting pipe (8) is grouted. During the grouting process of the main grouting pipe (8), the grouting material first forms a grout body at the bottom of the steel flower pipe (4), and then the grouting material flows upward along the steel flower pipe (4) and flows out from the permeation hole (7) of the steel flower pipe to form a continuous solidified layer that wraps the steel flower pipe (4); S3. The tops of multiple grouting structures are connected by a frame structure. The frame structure is equipped with multi-directional adjustment joints to compensate for installation errors.

Citation Information

Patent Citations

  • A bridge pavement repair construction technology

    CN108330848B