Soft soil foundation reinforcing device and reinforcing method

Abstract

The application relates to a soft soil foundation reinforcing device and a reinforcing method, wherein the soft soil foundation reinforcing device comprises a reinforcing plate, a water collecting cylinder arranged on the reinforcing plate, reinforcing assembly one and reinforcing assembly two, three groups of reinforcing assembly one and three groups of reinforcing assembly two are arranged around the water collecting cylinder in a triangular structure; the three groups of reinforcing assembly one form an inner layer triangular fixed structure, and the reinforcing assembly one is provided with a permeation hole which is communicated with the water collecting cylinder through a water collecting channel, and the water collecting cylinder is configured to accommodate seepage water of the underground soft soil foundation; the reinforcing assembly two is provided with a grouting pipeline and a grouting opening, can inject grout into the soft soil foundation, and forms an outer layer triangular fixed structure. The soft soil foundation reinforcing method uses the soft soil foundation reinforcing device to reinforce the soft soil foundation. The application realizes effective reinforcement of the soft soil foundation and has a large reinforcing range.

Description

Technical Field

[0001] This application relates to the field of foundation reinforcement technology, and in particular to a soft soil foundation reinforcement device and reinforcement method. Background Technology

[0002] Soft soil foundations are characterized by high porosity, high water content, and large settlement. If building projects, road projects, or water conservancy projects are to be constructed on soft soil foundations, the soft soil foundations must be effectively reinforced first. Otherwise, significant settlement will occur, affecting the normal use of buildings and other projects.

[0003] One existing method for reinforcing soft soil foundations uses bamboo mesh and bamboo posts to reinforce the foundation. The mesh and posts act as a reinforcing layer, improving the bearing capacity of silt and soft soil to some extent. However, this bamboo-woven reinforcement structure is limited by the inherent bearing capacity of bamboo and the fact that multiple bamboo posts fixed to the mesh are located in straight lines both horizontally and vertically. Although the posts are connected by the mesh, their fixation to the soft soil foundation is relatively independent, resulting in unstable connections. This makes the bamboo-woven reinforcement structure prone to deformation under the loads of buildings, etc. Furthermore, this method cannot drain deep water accumulation in soft soil foundations, and prolonged soaking in water can cause bamboo to rot, compromising the safety of the reinforced soft soil foundation.

[0004] Another existing technology involves a reinforcement and seepage-promoting structure for soft soil foundations in highway construction. This structure includes a reinforcement slab with two reinforcement mechanisms on its lower surface. Each reinforcement mechanism consists of fixing bolts, a clamping plate, a reinforcement pile, and a protrusion. Seepage-promoting holes are formed on the surface of the reinforcement slab for seepage promotion during use. However, these reinforcement piles are essentially the same as those used in conventional foundation reinforcement—both are solid structures, and the two piles are of equal length. This results in a uniform reinforcement depth for the soft soil foundation, and the lateral fixation range is limited, leading to a less than ideal reinforcement effect. Furthermore, while the seepage-promoting holes on the reinforcement slab allow water to seep into the soft soil foundation during rainfall or other surface water accumulation, they cannot drain the accumulated water, causing further soil loosening and even collapse. This negatively impacts the overall reinforcement effect of the soft soil foundation.

[0005] In summary, existing soft soil foundation reinforcement methods have limited reinforcement range, cannot drain water from the soft soil foundation, and have unsatisfactory reinforcement effects, failing to meet the reinforcement needs of soft soil foundations. Summary of the Invention

[0006] In view of the above analysis, the present invention aims to provide a soft soil foundation reinforcement device and reinforcement method to solve one or more of the above-mentioned problems existing in the prior art.

[0007] The objective of this invention is achieved as follows:

[0008] On the one hand, a soft soil foundation reinforcement device is provided, comprising:

[0009] A reinforcement plate is configured to be placed on the surface of the soft soil foundation to be reinforced;

[0010] A water collection cylinder is located at the center of the bottom surface of the reinforcement plate. The water collection cylinder has a water collection space and is configured to contain seepage water from the underground soft soil foundation.

[0011] Three sets of reinforcement components are installed vertically on the bottom surface of the reinforcement plate, and the intersection of the axes of the three sets of reinforcement components and the plane where the reinforcement plate is located forms a first equilateral triangle. The axis of the water collection cylinder passes through the center of the first equilateral triangle.

[0012] Three sets of reinforcement components are installed vertically on the bottom surface of the reinforcement plate. The intersection of the axes of the three sets of reinforcement components and the plane where the reinforcement plate is located forms a second equilateral triangle. The second equilateral triangle is parallel to the first equilateral triangle, and the area of ​​the second equilateral triangle is greater than the area of ​​the first equilateral triangle.

[0013] Among them, reinforcement component one has a permeation hole, which is connected to the water collection cylinder through a water collection channel; reinforcement component two has a grouting pipe and a grouting port, which can inject grout into the soft soil foundation.

[0014] Furthermore, the reinforcing plate is a triangular plate, with its three sides parallel to the three sides of the second equilateral triangle and the first equilateral triangle, respectively; the reinforcing plate is provided with through hole one, through hole two and through hole three; the upper end of the water collecting cylinder is detachably installed in through hole one; the upper end of reinforcing component one is detachably installed in through hole two; the upper end of reinforcing component two is detachably installed in through hole three.

[0015] Furthermore, the reinforcement component includes a reinforcement pipe with a reinforcement infiltration chamber inside. The reinforcement infiltration chamber is connected to a water collection cylinder through a water guide pipe. Infiltration holes are located on the side wall of the reinforcement pipe and are connected to the reinforcement infiltration chamber. The infiltration holes are equipped with reinforcement infiltration elements with water inlet channels. Water from the soft soil foundation enters the reinforcement infiltration chamber through the water inlet channels, and the reinforcement infiltration elements can extend radially outward from the reinforcement pipe.

[0016] Furthermore, a screw is installed in the reinforced permeation chamber. The upper end of the screw extends to the inlet of the reinforced pipe and is connected to a handle. The lower end of the screw is connected to a lifting cylinder. The lifting cylinder is driven to move up and down by the screw to control the extension or retraction of the reinforced permeation component into the reinforced permeation chamber.

[0017] Furthermore, a telescopic reinforcement component is also provided at the bottom of the reinforcement pipe. The telescopic reinforcement component includes a conical cylinder, which is coaxially located at the bottom of the reinforcement pipe. A through hole is provided on the bottom surface of the reinforcement pipe, and a receiving chamber with an open lower end is provided inside the conical cylinder. A lifting frame is provided inside the receiving chamber, with a telescopic rod at the upper end of the lifting frame and a reinforcement rod at the lower end. The upper end of the telescopic rod extends into the reinforcement permeation chamber through the through hole on the bottom surface of the reinforcement pipe. When the lifting cylinder descends to the designated position, it can abut against the upper end of the telescopic rod and drive the reinforcement rod to extend out of the receiving chamber and insert into the deep soft soil foundation.

[0018] Furthermore, a conical base with a larger upper section and a smaller lower section is coaxially arranged at the lower end of the lifting cylinder, and a lifting seat is coaxially arranged at the upper end of the lifting cylinder; the lifting seat is movably located in the reinforced infiltration chamber and slides in contact with the inner wall of the reinforced infiltration chamber, and a water leakage hole is provided on the lifting seat.

[0019] Furthermore, the reinforced permeation component includes a mounting plate, which is movably mounted on the inner wall of the reinforced pipe by means of a spring. A reinforced permeation frame is provided on the first surface of the mounting plate. The reinforced permeation frame is movably mounted on the permeation hole and can move horizontally along the axis of the permeation hole, extending or retracting into the reinforced permeation chamber. The reinforced permeation frame is provided with a water inlet channel, which connects the reinforced permeation chamber with the soft soil foundation outside the reinforced pipe.

[0020] Furthermore, the lead screw drives the lifting cylinder to move up and down inside the reinforced tube, enabling the reinforced permeation frame to move horizontally within the permeation hole.

[0021] Furthermore, the water inlet channel is grid-shaped, with multiple inlet holes and multiple outlet holes. The inlet holes allow water from the soft soil foundation to flow into the water inlet channel and enter the reinforced infiltration chamber from the outlet holes.

[0022] Furthermore, the second side of the mounting plate is an arc surface, which can match the arc surface of the lifting cylinder, and the arc surface of the lifting cylinder is also provided with a water inlet groove opposite to the position of the water outlet.

[0023] Furthermore, the upper end of the reinforced infiltration chamber is connected to the bottom of the water collection space through a water pipe. The lower part of the water collection space is equipped with a filter sand layer and an activated carbon adsorption layer from bottom to top. The upper part of the water collection space is equipped with a liquid level sensor, which is connected to the back-end control room.

[0024] On the other hand, a method for reinforcing soft soil foundations is also provided, which uses the aforementioned soft soil foundation reinforcement device to reinforce the soft soil foundation. The reinforcement method includes the following steps:

[0025] Step 1: Assemble the soft soil foundation reinforcement device and excavate a pit in the soft soil foundation area to be reinforced;

[0026] Step 2: Align the water collection cylinder of the soft soil foundation reinforcement device with the pit, press down the reinforcement plate so that the three sets of reinforcement components one and three sets of reinforcement components two are inserted into the soft soil foundation until the lower surface of the reinforcement plate is in contact with the surface of the soft soil foundation. At this time, the water collection cylinder is installed in the pit.

[0027] Step 3: Using a grouting device, grout is injected into the soft soil foundation through the reinforcement components. The grout seeps into the underground soft soil and solidifies after a predetermined time to form an outer fixed structure.

[0028] Step 4: Drive the lead screw to rotate, causing the lifting cylinder to descend. During the descent, multiple sets of reinforcement and penetration frames extend out of the lifting cylinder in sequence and are inserted laterally into the soft soil foundation. Continue to drive the lead screw to rotate. When the lower conical base of the lifting cylinder abuts against the upper end of the telescopic rod, push the telescopic rod downward, thereby causing the reinforcement rod to extend out of the storage chamber and insert into the deep soft soil foundation. In this state, the three sets of reinforcement components form an inner fixed structure.

[0029] Step 5: The level sensor monitors the water volume in the collection tank in real time. When the threshold is reached, a drainage signal is sent to the control room. Staff then come to the construction site to drain the water from the collection tank.

[0030] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0031] A) The soft soil foundation reinforcement device provided by the present invention, by setting a water collection cylinder on the reinforcement plate and three sets of reinforcement components one and three sets of reinforcement components two around the water collection cylinder, both of which form a triangular structure, allows water accumulated inside the soft soil foundation to enter the water collection cylinder through the permeation holes of reinforcement component one. Grouting is then injected into the soft soil foundation using reinforcement component two to form an outer triangular fixing structure, while the three sets of reinforcement components one form an inner triangular fixing structure. In this way, reinforcement component one, reinforcement component two, and the reinforcement plate work together to form a double triangular stable structure, which provides a large reinforcement range for the soft soil foundation and can drain the water accumulated inside the soft soil foundation, thereby improving the reinforcement effect of the soft soil foundation.

[0032] B) The soft soil foundation reinforcement device provided by the present invention has a reinforcement permeable component and a telescopic reinforcement component inside the reinforcement pipe of the reinforcement component one. The reinforcement permeable component can extend laterally relative to the radial direction of the reinforcement pipe, thereby increasing the lateral fixing effect of the reinforcement component one and guiding the accumulated water in the deep soft soil foundation into the reinforcement permeable chamber to avoid the decrease in stability of the soft soil foundation caused by water seepage. The telescopic reinforcement component can continue to be inserted into the deeper soft soil foundation after the reinforcement component one is inserted into the soft soil to a certain depth, thereby reinforcing the soft soil foundation in deeper areas.

[0033] C) The soft soil foundation reinforcement method provided by the present invention uses a soft soil foundation reinforcement device to form a double triangular stable structure for the soft soil foundation, which increases the reinforcement range of the soft soil foundation and can drain the water inside the soft soil foundation, thereby improving the reinforcement effect of the soft soil foundation. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0035] Figure 1 This is a bottom view of one embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the split state according to an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram showing the positional relationship between the water collection cylinder and the reinforcing component in one embodiment of the present invention;

[0038] Figure 4 This is a cross-sectional view of a reinforcement component one in one embodiment of the present invention;

[0039] Figure 5 for Figure 4 Enlarged view of region A in the middle;

[0040] Figure 6 This is a schematic diagram of the reinforced permeation element in one embodiment of the present invention;

[0041] Figure 7 This is a cross-sectional view of a reinforced permeable element in one embodiment of the present invention;

[0042] Figure 8 for Figure 4 Enlarged view of region B in the middle;

[0043] Figure 9 This is a cross-sectional view of the water collection cylinder in one embodiment of the present invention.

[0044] Figure label:

[0045] 1. Reinforcement Component One; 2. Water Collection Cylinder; 3. Reinforcement Component Two; 4. Reinforcement Plate; 5. Through Hole Three; 6. Through Hole One; 7. Through Hole Two; 8. Filter Sand Layer; 9. Activated Carbon Adsorption Layer; 10. Reinforcement Pipe; 11. Reinforced Infiltration Component; 12. Lifting Cylinder; 13. Lead Screw; 14. Handle; 15. Telescopic Reinforcement Component; 16. Water Inlet Tank; 17. Lifting Seat; 18. Leakage Hole; 19. Mounting Plate; 20. Reinforced Infiltration Frame; 21. Water Inlet Channel; 22. Spring; 23. Conical Cylinder; 24. Storage Chamber; 25. Telescopic Rod; 26. Lifting Frame; 27. Reinforcement Rod; 28. Water Outlet Hole; 29. ​​Water Guide Pipe; 30. Reinforced Infiltration Chamber. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be noted that, unless otherwise specified, the implementation methods and features in the implementation methods in this disclosure can be combined, separated, interchanged, and / or rearranged. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] In the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0048] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0049] For descriptive purposes, this disclosure may use spatial relative terms such as “top,” “bottom,” “below,” “under,” “under,” “below,” “above,” “above,” “higher,” etc., which are relative to components, to describe the relationship between one component and another (other) component as shown in the accompanying drawings.

[0050] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0051] Example 1

[0052] A specific embodiment of the present invention, such as Figures 1 to 3 As shown, a soft soil foundation reinforcement device is disclosed, including a reinforcement plate 4, a water collection cylinder 2, three sets of reinforcement components 1 and three sets of reinforcement components 2 3; the reinforcement plate 4 is configured to be placed on the surface of the soft soil foundation to be reinforced; the water collection cylinder 2 is located at the center of the bottom surface of the reinforcement plate 4, and the water collection cylinder 2 has a water collection space, configured to contain seepage water from the underground soft soil foundation; the reinforcement components 1 and 2 3 are arranged around the water collection cylinder 2, and the three sets of reinforcement components 1 and 2 3 all form a triangular structure. Specifically, the reinforcement components 1 are vertically arranged on the bottom surface of the reinforcement plate 4, and the axes of the three sets of reinforcement components 1 are perpendicular to the bottom surface of the reinforcement plate 4. The intersections of the planes form a first equilateral triangle, and the axis of the water collection cylinder 2 passes through the center of the first equilateral triangle; the second reinforcement component 3 is perpendicularly installed on the bottom surface of the reinforcement plate 4, and the intersections of the axes of the three sets of reinforcement components 3 with the plane where the reinforcement plate 4 is located form a second equilateral triangle, and the axis of the water collection cylinder 2 passes through the center of the second equilateral triangle; the second equilateral triangle is parallel to the first equilateral triangle, and the area of ​​the second equilateral triangle is larger than the area of ​​the first equilateral triangle; wherein, the first reinforcement component 1 has a permeation hole, and the permeation hole is connected to the water collection cylinder 2 through the water collection channel; the second reinforcement component 3 has a grouting pipe and a grouting port, which can inject grout into the soft soil foundation.

[0053] In this embodiment, the reinforcing plate 4 is a triangular plate, with its three sides parallel to the three sides of the second equilateral triangle and the first equilateral triangle, respectively. The reinforcing plate 4 has through holes 6, 7, and 5, corresponding one-to-one with the water collection cylinder 2, the first reinforcing component 1, and the second reinforcing component 3, respectively. The upper end of the water collection cylinder 2 is detachably installed in through hole 6; the upper end of the first reinforcing component 1 is detachably installed in through hole 7; and the upper end of the second reinforcing component 3 is detachably installed in through hole 5. Through hole 6 has a first cover that can be opened and closed, and through hole 7 has a second cover that can be opened and closed. The use of a triangular reinforcing plate, similar in shape to the two triangular fixed structures formed underground by the first reinforcing component 1 and the second reinforcing component 3, results in better reinforcement. Furthermore, the detachable structure allows for flexible use and facilitates transportation.

[0054] In one embodiment, the reinforcement component 2 3 is a hollow tube, the internal space of which forms a grouting pipe. A grouting port is provided at the lower end of the hollow tube and / or on the lower side wall of the hollow tube. The grouting port is connected to the grouting pipe, and the grouting pipe is connected to a grouting pump. The grouting pump is used to pump cement slurry into the grouting pipe and spray it out from the grouting port into the soft soil layer. By pouring cement, the reinforcement stability of the soft soil foundation is improved.

[0055] In one embodiment, carbon fiber cloth is fixedly provided on the upper and lower surfaces of the reinforcing plate 4. A whole piece of carbon fiber cloth is used to wrap and glue the triangular plate, and holes are reserved at the corresponding positions of through holes 1 6, through holes 2 7 and through holes 3 5. By setting carbon fiber cloth on the reinforcing plate, not only can the structural bearing capacity be improved, but the rigidity of the structure can also be enhanced. In this way, a larger area of ​​reinforcing plate 4 can be used without increasing the thickness, which not only expands the reinforcement range of soft soil foundation, but also reduces costs.

[0056] In this embodiment, as Figure 4 As shown, the reinforcement component 1 includes a reinforcement pipe 10, with a through hole 6 at the upper end of the reinforcement pipe 10. A reinforcement infiltration chamber 30 is provided inside the reinforcement pipe 10. The reinforcement infiltration chamber 30 is connected to a water collection cylinder 2 via a water guide pipe 29. The water guide pipe 29 and the reinforcement infiltration chamber form a water collection channel connecting the water collection cylinder 2 and the infiltration hole. The infiltration hole is located on the side wall of the reinforcement pipe 10 and communicates with the reinforcement infiltration chamber 30. A reinforcement infiltration element 11 is provided on the side wall of the reinforcement pipe 10. The reinforcement infiltration element 11 can extend laterally relative to the radial direction of the reinforcement pipe 10, increasing the lateral fixing effect of the reinforcement component 1 and allowing water from deep soft soil foundations to be guided into the reinforcement infiltration chamber 30. Specifically, the infiltration hole is equipped with a reinforcement infiltration element 11, which has a water inlet channel 21. Water from the soft soil foundation enters the reinforcement infiltration chamber 30 through the water inlet channel 21, and the reinforcement infiltration element 11 can extend radially outward from the reinforcement pipe 10.

[0057] In this embodiment, before the reinforcement component 1 is inserted to a specified depth, the reinforcement penetration component 11 is retracted into the reinforcement tube 10. After the reinforcement component 1 is inserted to a specified depth, the drive mechanism is used to make the reinforcement penetration component 11 extend radially outward from the reinforcement tube 10.

[0058] In one alternative embodiment, the drive mechanism includes a lead screw 13 and a handle 14. Rotating the handle 14 drives the lead screw 13 to extend and retract the reinforcing permeation component 11. Specifically, a rotatable lead screw 13 is installed inside the reinforcing permeation chamber 30. The upper end of the lead screw 13 extends to the inlet of the reinforcing tube 10 and connects to the handle 14. The lower end of the lead screw 13 is threadedly connected to a lifting cylinder 12. The lead screw 13 drives the lifting cylinder 12 to move up and down, thereby controlling the extension or retraction of the reinforcing permeation component 11 into the reinforcing permeation chamber 30. Optionally, the handle 14 is detachably connected to the end of the lead screw 13. After the lead screw 13 is rotated, the handle 14 can be removed, thus not affecting the overall flatness of the top surface of the reinforcing plate 4.

[0059] To increase the range of longitudinal reinforcement depth, a telescopic reinforcement member 15 is also provided at the bottom of the reinforcement pipe 10, such as... Figure 8 As shown, the telescopic reinforcement component 15 includes a conical cylinder 23, which is coaxially disposed at the bottom of the reinforcement pipe 10. The bottom surface of the reinforcement pipe 10 is provided with a through hole. The interior of the conical cylinder 23 is provided with a storage chamber 24 with an open lower end. A lifting frame 26 is provided inside the storage chamber 24. A telescopic rod 25 is provided at the upper end of the lifting frame 26, and a reinforcement rod 27 is provided at the lower end of the lifting frame 26. The upper end of the telescopic rod 25 extends into the reinforcement penetration chamber 30 through the through hole on the bottom surface of the reinforcement pipe 10. When the lifting cylinder 12 descends to the designated position, it can abut against the upper end of the telescopic rod 25 and drive the telescopic rod 25 to descend, thereby driving the reinforcement rod 27 to extend out of the storage chamber 24 and insert into the deeper soft soil foundation to reinforce the soft soil foundation at a deeper level.

[0060] For example, there are multiple telescopic rods 25, such as three, which are evenly arranged. Correspondingly, the bottom surface of the reinforcing pipe 10 is provided with multiple through holes, which allow the telescopic rods 25 to pass through and limit the passage of the lifting frame 26, preventing the lifting frame 26 from entering the interior of the reinforcing pipe 10. During the process of inserting the reinforcement component 1 downward into the soft soil foundation, the telescopic rod 25 retracts upward under the action of the soft soil. Most of the telescopic rod 25 is located inside the reinforcement infiltration chamber of the reinforcement pipe 10, and only a small part of the lower end of the telescopic rod 25 extends out of the lower end opening of the receiving chamber 24. The lifting frame is then limited by the lower surface of the reinforcement pipe 10. After the reinforcement component 1 is inserted into the soft soil foundation to a specified depth, the lifting cylinder 12 is driven to descend through the screw 13. As the lifting cylinder 12 descends, multiple sets of reinforcement infiltration frames 20 arranged from top to bottom extend out of the lifting cylinder 12 and are inserted into the soft soil foundation in sequence. When the lower conical base of the lifting cylinder 12 abuts against the upper end of the telescopic rod 25, the telescopic rod 25 is pushed downward, so that most of the reinforcement rod 27 is inserted into the deep part of the soft soil. Thus, compared to traditional columnar reinforcement components, the reinforcement component 1 of this embodiment, by setting a transversely extendable reinforcement penetration component 11 and a longitudinally extendable telescopic reinforcement component 15, can perform secondary reinforcement of the soft soil foundation in both the transverse and longitudinal directions, thereby expanding the reinforcement range and improving the reinforcement effect on the soft soil foundation.

[0061] In one alternative embodiment, the lifting cylinder 12, by moving up and down, can not only control the entry and exit of the reinforcing permeation component 11 into the reinforcing permeation chamber, but also simultaneously drive the telescopic reinforcement component 15 to work. Specifically, the lifting cylinder 12 has a cylindrical structure, with the lower part of the lead screw 13 rotatably disposed inside the lifting cylinder 12; a conical base, wider at the top and narrower at the bottom, is coaxially disposed at the lower end of the lifting cylinder 12, and a lifting seat 17 is coaxially disposed at the upper end of the lifting cylinder 12; the lifting seat 17 is movably disposed within the reinforcing permeation chamber 30 and slides in contact with the inner wall of the reinforcing permeation chamber 30, the lifting seat 17 guides the movement of the lifting cylinder 12, and a water leakage hole 18 is provided on the lifting seat 17, which connects the spaces on both sides of the lifting seat 17, serving as a channel for water to seep from the lower space of the reinforcing permeation chamber into the upper space, and the water leakage hole 18 can intercept large-diameter sand and gravel. In this embodiment, a conical base is used to buffer the force on the reinforcing permeation component 11, so that when the conical base descends, the lateral force on the reinforcing permeation component 11 gradually increases.

[0062] In one alternative implementation, such as Figures 5 to 7, the reinforcement and infiltration member 11 includes a mounting plate 19. The mounting plate 19 is movably arranged on the inner wall of the reinforcement pipe 10 through a spring 22. A reinforcement and infiltration frame 20 is provided on the first surface of the mounting plate 19. Multiple reinforcement and infiltration frames 20 are arranged around the axis of the lifting cylinder 12. The second surface of the mounting plate 19 faces the outer peripheral surface of the lifting cylinder 12. The reinforcement and infiltration frame 20 is movably installed in the infiltration hole and can horizontally move along the axis of the infiltration hole, extend out or retract into the reinforcement and infiltration chamber 30. Under the action of the spring 22, the reinforcement and infiltration frame 20 retracts into the interior of the reinforcement pipe 10 and does not protrude laterally. An inlet channel 21 is provided on the reinforcement and infiltration frame 20. The inlet channel 21 connects the reinforcement and infiltration chamber 30 with the soft soil foundation outside the reinforcement pipe 10 to allow the seepage water in the soft soil to enter the reinforcement and infiltration chamber 30. The lead screw 13 drives the lifting cylinder 12 to move up and down in the reinforcement pipe 10, enabling the reinforcement and infiltration frame 20 to horizontally move in the infiltration hole.

[0063] Before inserting the first reinforcement component 1 into the soft soil foundation to be reinforced, the conical base at the lower end of the lifting cylinder 12 is located above the uppermost reinforcement and infiltration member 11. Under the elastic action of the spring 22, the reinforcement and infiltration frame 20 is located inside the reinforcement pipe 10. At this time, the end of the reinforcement and infiltration frame 20 does not protrude from the outer peripheral surface of the reinforcement pipe 10. There is a space for the lower end of the conical base to insert between the mounting plates 19 at the same height position. After inserting the first reinforcement component 1 into the soft soil foundation to be reinforced, by rotating the lead screw 13 to drive the lifting cylinder 12 to move downward, the conical base at the lower end of the lifting cylinder 12 descends and inserts into the space between the mounting plates 19 of the uppermost reinforcement and infiltration member 11, gradually pushing the mounting plate 19 radially outward along the reinforcement pipe 10, causing the reinforcement and infiltration frame 20 to horizontally protrude outside the reinforcement pipe 10 and insert into the soft soil foundation. When the cylinder body of the lifting cylinder 12 contacts the mounting plate 19, the reinforcement and infiltration frame 20 reaches the maximum extension length. When rotating the lead screw 13 in the reverse direction to drive the lifting cylinder 12 to move upward, after the mounting plate 19 separates from the outer wall of the lifting cylinder 12, under the action of the spring, the reinforcement and infiltration frame 20 retracts into the interior of the reinforcement pipe 10. In this way, on the one hand, it is convenient for the first reinforcement component to smoothly insert deep into the soft soil foundation, and on the other hand, it can also achieve secondary reinforcement adjustment of the reinforcement device.

[0064] In one optional implementation, the longitudinal section of the reinforcement and infiltration frame 20 is a "king" - shaped structure. The reinforcement and infiltration frame 20 is provided with a grid - shaped inlet channel 21 that penetrates the horizontal section and the vertical section, such as a cross - shaped channel. It can also be understood that the inlet channel 21 is grid - shaped. The grid - shaped inlet channel 21 has multiple inlet holes and multiple outlet holes 28. The inlet holes are used for the water in the soft soil foundation to flow into the inlet channel 21 and enter the reinforcement and infiltration chamber 30 from the outlet holes 28. By setting the inlet channel as a grid - shaped structure, the number of inlet holes and outlet holes is increased, enabling the accumulated water in multiple directions to enter the reinforcement and infiltration chamber 30 simultaneously, improving the drainage efficiency of the accumulated water in the deep part of the soft soil layer.

[0065] Furthermore, since the lifting cylinder 12 has a hollow cylindrical structure, the mounting plate 19 in this embodiment has an arc-shaped structure. At least the second surface of the mounting plate 19 is set as an arc surface, which can match the arc surface of the lifting cylinder 12. The arc surface of the lifting cylinder 12 also has a water inlet groove 16 opposite to the water outlet 28. The water outlet 28 communicates with the water inlet groove 16, serving to guide water flow. This structural arrangement improves the lifting flexibility of the lifting cylinder 12, ensuring the smooth radial extension and retraction of the reinforced permeation frame 20.

[0066] In this embodiment, as Figure 9 As shown, the upper end of the reinforced infiltration chamber 30 is connected to the bottom of the water collection space of the water collection cylinder 2 via a water guide pipe 29. The lower part of the water collection space is equipped with a filter sand layer 8 and an activated carbon adsorption layer 9 from bottom to top. The filter sand layer 8 and activated carbon adsorption layer 9 can perform two-stage filtration of the infiltrated water. The water filtered by the filter sand layer 8 and activated carbon adsorption layer 9 can be reused for irrigation or construction processes, saving energy and protecting the environment. Optionally, the soft soil foundation reinforcement device can also be equipped with a water pump and a water pipe. The water pipe extends into the water collection cylinder 2, and the water pump is used to extract the filtered infiltrated water from the water collection cylinder for use in watering plants, rinsing equipment, etc. It should be noted that the water pump and water pipe configuration can be applied during the construction of soft soil foundations, or the water pipe can be buried underground during subsequent construction on the soft soil foundation, with the pipe opening located above ground and connected to the water pump. This allows for timely extraction of infiltrated water from the water collection cylinder 2 during the construction of ground-level buildings and later in the construction process.

[0067] In one alternative embodiment, a level sensor is installed at the top of the water collection space, and the level sensor is connected to the control room. The level sensor can be powered by solar energy or batteries.

[0068] This embodiment also provides a method for reinforcing soft soil foundations. The soft soil foundation is reinforced using the soft soil foundation reinforcement device described above in this embodiment. The reinforcement method includes the following steps:

[0069] Step 1: Assemble the soft soil foundation reinforcement device and excavate a pit in the soft soil foundation area to be reinforced; specifically, fix the three sets of reinforcement components 1, the three sets of reinforcement components 2, and the water collection cylinder 2 on the reinforcement plate 4, and connect the reinforcement components 1 and the water collection cylinder 2.

[0070] Step 2: Align the water collection cylinder 2 of the soft soil foundation reinforcement device with the pit, and press down the reinforcement plate 4 so that the three sets of reinforcement components 1 and 3 are inserted into the soft soil foundation until the lower surface of the reinforcement plate 4 is in contact with the surface of the soft soil foundation. At this time, the water collection cylinder 2 is installed in the pit and in contact with the inside of the pit.

[0071] Step 3: Using a grouting device, grout is injected into the soft soil foundation through reinforcement component 23. The grout seeps into the underground soft soil and solidifies after a predetermined time to form an outer fixed structure.

[0072] Step 4: Drive the lead screw 13 to rotate, causing the lifting cylinder 12 to descend. During the descent, multiple sets of reinforced infiltration frames 20 extend out of the lifting cylinder 12 in sequence and are inserted laterally into the soft soil foundation. Continue to drive the lead screw 13 to rotate. When the lower conical base of the lifting cylinder 12 abuts against the upper end of the telescopic rod 25, push the telescopic rod 25 downward, thereby causing the reinforcing rod 27 to extend out of the receiving chamber 24 and insert into the deep soft soil foundation, further reinforcing the deep part of the soft soil foundation. In this state, the three sets of reinforcing components 1 form an inner fixed structure. When the reinforced infiltration frame 20 extends out of the lifting cylinder 12 and is inserted laterally into the soft soil foundation, the water in the soft soil foundation enters the water collection cylinder 2 through the water inlet channel 21. The filter sand layer 8 and activated carbon adsorption layer 9 at the bottom of the water collection cylinder 2 perform two-stage filtration of the infiltrated water.

[0073] Step 5: The level sensor monitors the water volume in the water collection tank 2 in real time. When the threshold is reached, a drainage signal is sent to the back-end control room, and staff come to the construction site to drain the water from the water collection tank 2.

[0074] In step one, before excavating trenches in the soft soil foundation area to be reinforced, the boundary line of the reinforcement area is determined according to the required reinforcement range. Multiple trenches are excavated along the boundary line and within the reinforcement area, and soft soil foundation reinforcement devices are installed according to the trench layout. For example, the boundary line of the area to be reinforced is rectangular. The soft soil foundation reinforcement devices are evenly distributed along the sides of the rectangle, having a first density. Within the rectangular area to be reinforced, the soft soil foundation reinforcement devices are arranged diagonally, but not uniformly along the diagonals, having a second density. The second density varies at different locations along the same diagonal, specifically decreasing from the center towards the four corners. Furthermore, multiple soft soil foundation reinforcement devices are evenly distributed within the triangular area formed by the two intersecting diagonals and the sides of the rectangle. This arrangement divides the area to be reinforced into multiple triangular areas using soft soil foundation reinforcement devices, resulting in good reinforcement effect and a smaller number of devices required.

[0075] Furthermore, the soft soil foundation reinforcement device provides deeper reinforcement at the center of the area to be reinforced, while the reinforcement depth at the outer edges is shallower. In other words, the soft soil foundation reinforcement device located in the center of the rectangular area to be reinforced has reinforcement component 1 and reinforcement component 3 of a first length, while the soft soil foundation reinforcement devices on the edges of the rectangle have reinforcement component 1 and reinforcement component 3 of a second length, with the first length being greater than the second length. This arrangement further enhances the reinforcement effect of the soft soil foundation.

[0076] It should be noted that the soft soil foundation reinforcement device and method of this embodiment can be used not only for the reinforcement of sedimentary soft soil foundations such as rivers, lakes, coastal areas, and valley bottoms, but also for the reinforcement of ordinary foundations.

[0077] Compared with the prior art, the soft soil foundation reinforcement device and reinforcement method provided by the present invention can achieve at least one of the following beneficial effects:

[0078] 1. By installing a water collection cylinder on the reinforcement plate and surrounding it with three sets of reinforcement components one and three sets of reinforcement components two, both of which form a triangular structure, water accumulated inside the soft soil foundation can enter the water collection cylinder through the permeation holes of reinforcement component one. Grouting is then injected into the soft soil foundation using reinforcement component two to form an outer triangular fixing structure. The three sets of reinforcement components one form an inner triangular fixing structure. In this way, reinforcement component one, reinforcement component two, and the reinforcement plate work together to form a double triangular stable structure, which provides a large reinforcement range for the soft soil foundation and can drain the water accumulated inside the soft soil foundation, thereby improving the reinforcement effect of the soft soil foundation.

[0079] 2. The reinforcement tube of reinforcement component one is equipped with a reinforcement permeation element and a telescopic reinforcement element. The reinforcement permeation element can extend laterally relative to the radial direction of the reinforcement tube, increasing the lateral fixation effect of reinforcement component one, and can guide the accumulated water in the deep soft soil foundation into the reinforcement permeation chamber to avoid the decrease in stability of the soft soil foundation caused by water seepage. The telescopic reinforcement element can continue to be inserted into the deeper soft soil foundation after reinforcement component one has been inserted into the soft soil to reinforce the soft soil foundation in deeper areas.

[0080] 3. By setting up a filter sand and gravel layer and an activated carbon adsorption layer in the water collection tank, the incoming permeable water is filtered, and the water volume is monitored by a liquid level sensor. When the water reaches the threshold, a signal is sent to the background control room, and staff come to the construction site to drain the water. Moreover, the filtered water can be reused for irrigation or construction, which is energy-saving and environmentally friendly.

[0081] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A soft soil foundation reinforcement device, characterized in that, include: A reinforcing plate (4) is configured to be placed on the surface of the soft soil foundation to be reinforced; Water collection cylinder (2), the water collection cylinder (2) is located at the center of the bottom surface of the reinforcing plate (4), the water collection cylinder (2) has a water collection space and is configured to accommodate seepage water from the underground soft soil foundation; Three sets of reinforcement components (1) are vertically disposed on the bottom surface of the reinforcement plate (4), and the intersection of the axes of the three sets of reinforcement components (1) with the plane where the reinforcement plate (4) is located forms a first equilateral triangle, and the axis of the water collection cylinder (2) passes through the center of the first equilateral triangle. Three sets of reinforcement components two (3), the reinforcement components two (3) are perpendicularly disposed on the bottom surface of the reinforcement plate (4), and the intersection of the axes of the three sets of reinforcement components two (3) with the plane where the reinforcement plate (4) is located forms a second equilateral triangle. The second equilateral triangle is parallel to the first equilateral triangle, and the area of ​​the second equilateral triangle is greater than the area of ​​the first equilateral triangle. The first reinforcement component (1) has a permeation hole, which is connected to the water collection cylinder (2) through a water collection channel; the second reinforcement component (3) has a grouting pipe and a grouting port, which can inject grout into the soft soil foundation. The first reinforcement component (1) includes a reinforcement pipe (10), and a reinforcement infiltration chamber (30) is provided inside the reinforcement pipe (10). The reinforcement infiltration chamber (30) is connected to the water collection cylinder (2) through a water guide pipe (29). The infiltration hole is provided on the side wall of the reinforcement pipe (10) and is connected to the reinforcement infiltration chamber (30). The infiltration hole is provided with a reinforcement infiltration element (11). The reinforcement infiltration element (11) has a water inlet channel (21). Water from the soft soil foundation enters the reinforcement infiltration chamber (30) through the water inlet channel (21), and the reinforcement infiltration element (11) can extend radially outward from the reinforcement pipe (10). The bottom of the reinforcing pipe (10) is also provided with a telescopic reinforcement component (15). The telescopic reinforcement component (15) includes a conical cylinder (23). The conical cylinder (23) is coaxially disposed at the bottom of the reinforcing pipe (10). The bottom surface of the reinforcing pipe (10) is provided with a through hole. The inside of the conical cylinder (23) is provided with a storage chamber (24) with an open lower end. A lifting frame (26) is provided in the storage chamber (24). A telescopic rod (25) is provided at the upper end of the lifting frame (26). A reinforcing rod (27) is provided at the lower end of the lifting frame (26). The upper end of the telescopic rod (25) extends into the reinforcing permeation chamber (30) through the through hole on the bottom surface of the reinforcing pipe (10). When the lifting cylinder (12) descends to the designated position, it can abut against the upper end of the telescopic rod (25) and drive the reinforcing rod (27) to extend out of the storage chamber (24) and insert into the deep soft soil foundation.

2. The soft soil foundation reinforcement device according to claim 1, characterized in that, The reinforcing plate (4) is a triangular plate, and the three sides of the triangular plate are parallel to the three sides of the second equilateral triangle and the first equilateral triangle, respectively. The reinforcing plate (4) is provided with through hole one (6), through hole two (7) and through hole three (5). The upper end of the water collecting cylinder (2) is detachably installed in through hole one (6). The upper end of the reinforcing component one (1) is detachably installed in through hole two (7). The upper end of the reinforcing component two (3) is detachably installed in through hole three (5).

3. The soft soil foundation reinforcement device according to claim 1, characterized in that, A screw (13) is provided inside the reinforced infiltration chamber (30). The upper end of the screw (13) extends to the opening of the reinforced pipe (10) and is connected to a handle (14). The lower end of the screw (13) is connected to a lifting cylinder (12). The lifting cylinder (12) is driven to move up and down by the screw (13) to control the reinforced infiltration component (11) to extend or retract into the reinforced infiltration chamber (30).

4. The soft soil foundation reinforcement device according to claim 3, characterized in that, The lower end of the lifting cylinder (12) is coaxially provided with a conical base that is larger at the top and smaller at the bottom, and the upper end of the lifting cylinder (12) is coaxially provided with a lifting seat (17); the lifting seat (17) is movably provided in the reinforced infiltration chamber (30) and slides in contact with the inner wall of the reinforced infiltration chamber (30); the lifting seat (17) is provided with a water leakage hole (18).

5. The soft soil foundation reinforcement device according to claim 3 or 4, characterized in that, The reinforced permeation component (11) includes a mounting plate (19), which is movably mounted on the inner wall of the reinforced pipe (10) by means of a spring (22). A reinforced permeation frame (20) is provided on the first surface of the mounting plate (19). The reinforced permeation frame (20) is movably mounted on the permeation hole and can move horizontally along the axis of the permeation hole, extending or retracting into the reinforced permeation chamber (30). A water inlet channel (21) is provided on the reinforced permeation frame (20), which connects the reinforced permeation chamber (30) with the soft soil foundation outside the reinforced pipe (10).

6. The soft soil foundation reinforcement device according to claim 5, characterized in that, The second surface of the mounting plate (19) is an arc surface, which can match the arc surface of the lifting cylinder (12).

7. The soft soil foundation reinforcement device according to claim 5, characterized in that, The upper end of the reinforced infiltration chamber (30) is connected to the bottom of the water collection space through a water pipe (29). The lower part of the water collection space is provided with a filter sand layer (8) and an activated carbon adsorption layer (9) from bottom to top. The upper part of the water collection space is provided with a liquid level sensor, which is connected to the background control room.

8. A method for reinforcing soft soil foundations, characterized in that, The soft soil foundation is reinforced using the soft soil foundation reinforcement device according to claim 7, and the reinforcement method includes the following steps: Step 1: Assemble the soft soil foundation reinforcement device and excavate a pit in the soft soil foundation area to be reinforced; Step 2: Align the water collection cylinder (2) of the soft soil foundation reinforcement device with the pit, press down the reinforcement plate (4) so ​​that the three sets of reinforcement components one (1) and the three sets of reinforcement components two (3) are inserted into the soft soil foundation until the lower surface of the reinforcement plate (4) is in contact with the surface of the soft soil foundation. At this time, the water collection cylinder (2) is installed in the pit. Step 3: Using the grouting device, grout is injected into the soft soil foundation through the reinforcement component 2 (3). The grout seeps into the underground soft soil and solidifies after a predetermined time to form an outer fixed structure. Step 4: Drive the screw (13) to rotate, causing the lifting cylinder (12) to descend. During the descent, multiple sets of reinforced penetration frames (20) extend out of the lifting cylinder (12) in sequence and are inserted laterally into the soft soil foundation. Continue to drive the screw (13) to rotate. When the lower conical base of the lifting cylinder (12) abuts against the upper end of the telescopic rod (25), push the telescopic rod (25) downward, thereby causing the reinforced rod (27) to extend out of the storage chamber (24) and be inserted into the deep soft soil foundation. In this state, the three sets of reinforced components (1) form an inner fixed structure. Step 5: The liquid level sensor monitors the water volume in the water collection tank (2) in real time. When the threshold is reached, a drainage signal is sent to the background control room, and staff come to the construction site to drain the water in the water collection tank (2).

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