Intelligent reinforcement device for expansive soil foundation

Abstract

The application relates to the technical field of foundation reinforcement, and particularly discloses an intelligent expansion soil foundation reinforcement device, which comprises a walking table and a reinforcement unit movably arranged at the advancing end of the walking table, and the reinforcement unit comprises a base table, a first plugging piece, a second plugging piece, a grouting piece, a first guide piece and a second guide piece. The two ends of the crack to be reinforced are plugged by the first plugging piece and the second plugging piece, the crack is treated in sections, each crack section is relatively isolated from other areas, the grout is prevented from overflowing to the two side through areas during the grouting process, and it is ensured that the grouting material can be accurately filled into the target crack section; the first guide piece and the second guide piece can be adaptively offset relative to the base table in the direction perpendicular to the feeding route of the walking table according to the change of the crack extension path, it is ensured that the first plugging piece and the second plugging piece are always accurately inserted into the crack, and meanwhile, the grouting piece can be accurately covered above the opening of the current crack section, so that the precision of crack grouting reinforcement is improved.

Description

Technical Field

[0001] This invention relates to the field of foundation reinforcement technology, and more specifically, to an intelligent reinforcement device for expansive soil foundations. Background Technology

[0002] Expansive soil foundation is a foundation soil layer composed of expansive soil. Its core characteristic is that the soil will undergo significant volume expansion and contraction when the water content changes. Cracks caused by the wet-dry cycle of expansive soil usually exhibit characteristics such as long-distance extension, multi-directional bifurcation, and irregular bending.

[0003] Conventional grouting equipment uses an integral sealing structure, which makes it difficult to effectively isolate crack sections during the grouting process, resulting in a large amount of grout being lost along the through cracks to non-target areas; especially in the construction of long cracks exceeding 5 meters, the grout diffuses longitudinally before it solidifies, resulting in a material waste rate of over 40%, and the solidified body forms a structurally weak zone due to discontinuous filling.

[0004] In addition, existing grouting reinforcement equipment lacks a path adaptive mechanism. When the crack deviates from the preset trajectory, the rigid moving platform cannot correct its direction of travel in real time, resulting in a positioning deviation of 10-15cm between the sealing component and the crack opening. The grouting coverage rate drops to less than 60%. These technical defects seriously restrict the reinforcement quality and engineering safety of infrastructure in expansive soil areas. Summary of the Invention

[0005] To overcome the above-mentioned technical problems, the present invention proposes an intelligent reinforcement device for expansive soil foundations.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A smart reinforcement device for expansive soil foundations includes a walking platform and a reinforcement unit movably disposed at the forward end of the walking platform. The reinforcement unit includes:

[0008] abutment;

[0009] The first sealing element is laterally movably disposed on one side of the base platform and is used to seal the side of the crack to be reinforced.

[0010] The second sealing element is laterally disposed on the other side of the base and is used to seal the other side of the crack to be reinforced.

[0011] The grouting component is disposed between the first sealing component and the second sealing component, and is used to grout and reinforce the crack between the first sealing component and the second sealing component.

[0012] A first guide member, which is vertically and vertically mounted on a first sealing member, is used to guide the first sealing member according to the crack extension path;

[0013] The second guide, which is vertically and flexibly mounted on the second sealing member, is used to guide the second sealing member according to the crack extension path.

[0014] As a further aspect of the present invention: the first sealing member includes a first guide rod horizontally fixed to one side of the base and a first slide plate slidably sleeved on the first guide rod. A first expansion plate is provided at the bottom of the first slide plate, and a first spring is sleeved at both ends of the first guide rod to abut against the first slide plate.

[0015] The second sealing component includes a second guide rod horizontally fixed to the other side of the base and a second slide plate slidably sleeved on the second guide rod. A second expansion plate is provided at the bottom of the second slide plate, and a second spring is sleeved at both ends of the second guide rod to abut against the second slide plate.

[0016] As a further aspect of the present invention: a first turntable is fixedly sleeved on the upper end of the first expansion plate, and the first turntable is rotatably installed in the first slide table;

[0017] The second expansion plate is fixedly fitted with a second turntable, which is rotatably installed inside the second slide.

[0018] As a further aspect of the present invention: an air pump is installed on the base, and the output end of the air pump is provided with an air pipe that communicates with the first expansion plate and the second expansion plate.

[0019] As a further aspect of the present invention: the first expansion sheet includes a first support sheet and a first expansion bladder sheet sleeved on the outside of the first support sheet, and a first air cavity is formed between the first support sheet and the first expansion bladder sheet;

[0020] The second expansion piece includes a second support piece and a second expansion bladder piece sleeved outside the second support piece, with a second air cavity formed between the second support piece and the second expansion bladder piece.

[0021] As a further aspect of the present invention: the grouting component includes a flexible grouting sleeve, the two ends of which are respectively sealed to the first slide and the second slide, the bottom of the flexible grouting sleeve is provided with an opening, and the top of the flexible grouting sleeve is connected to a grouting pipe.

[0022] As a further aspect of the present invention: the first guide includes a first sliding sleeve fixed on the first slide table and a first sliding rod vertically slidably sleeved in the first sliding sleeve. A first guide plate is provided at the lower end of the first sliding rod, and a third spring is sleeved on the first sliding rod to abut against the first guide plate.

[0023] The second guide includes a second sliding sleeve fixed to the second slide table and a second sliding rod vertically slidably sleeved inside the second sliding sleeve. A second guide plate is provided at the lower end of the second sliding rod, and a fourth spring is sleeved on the second sliding rod to abut against the second guide plate.

[0024] As a further aspect of the present invention: the first guide plate includes a first plate body fixed to the lower end of the first slide rod, and a first guide post is provided at the bottom of the first plate body;

[0025] The second guide plate includes a second plate body fixed to the lower end of the second slide rod, and a second guide post is provided at the bottom of the second plate body.

[0026] As a further aspect of the present invention: a V-shaped groove is provided at the front end of the first plate, and paving plates are symmetrically provided on both sides of the first plate.

[0027] As a further aspect of the present invention: a pressure roller is rotatably mounted on the rear end of the second plate, and soil covering plates are symmetrically arranged on both sides of the second plate.

[0028] The beneficial effects of this invention are:

[0029] By sealing both ends of the crack to be reinforced using the first and second sealing components, the crack is segmented and each segment is relatively isolated from other areas. This prevents the grout from overflowing into the penetrating areas on both sides during the grouting process, ensuring that the grouting material can accurately fill the target crack segment, improving the grouting effect and reinforcement quality. It is particularly suitable for situations where the crack extends for a long time and there is a risk of penetration. It effectively solves the problem of grout overflow and grouting failure caused by excessively long cracks in traditional grouting methods.

[0030] The first and second guide members can adaptively offset relative to the base in a direction perpendicular to the feed path of the traveling platform according to the changes in the crack extension path. This adaptive guidance function ensures that the first and second sealing members are always accurately inserted into the crack, while the grouting member can accurately cover the opening of the current crack segment, improving the accuracy of crack grouting reinforcement. Even when the crack extension path is curved or irregular, the device can still effectively adapt, ensuring the accuracy and reliability of the grouting operation and reducing the risk of reinforcement failure due to inaccurate positioning. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0033] Figure 2 This is a three-dimensional schematic diagram from another perspective of the present invention;

[0034] Figure 3 This is a three-dimensional schematic diagram of the reinforcement unit in this invention;

[0035] Figure 4 This is a partial structural schematic diagram of the reinforcement unit in this invention;

[0036] Figure 5 This is a partial structural schematic diagram of the reinforcement unit in this invention from another perspective;

[0037] Figure 6 This is a bottom view of the reinforcement unit in this invention;

[0038] Figure 7 This is a schematic diagram of the structure of the first sealing member and the first guiding member in this invention;

[0039] Figure 8 This is a schematic diagram of the structure of the second sealing member and the second guide member in this invention;

[0040] Figure 9 This is a cross-sectional view of the first expansion piece in this invention;

[0041] Figure 10 This is a cross-sectional view of the second expansion piece in this invention;

[0042] Figure 11 This is a schematic diagram of the structure of the first guide element in this invention;

[0043] Figure 12 This is a schematic diagram of the structure of the second guide in this invention.

[0044] In the picture:

[0045] 100. Walking platform; 110. Tilting frame; 120. Tilting cylinder; 130. Lifting frame; 140. Lifting cylinder;

[0046] 200. Reinforcement unit;

[0047] 210. Base; 211. Air pump; 212. Air pipe;

[0048] 220. First sealing component; 221. First guide rod; 222. First slide table; 223. First turntable; 224. First expansion plate; 2241. First support plate; 2242. First expansion bladder plate; 2243. First air chamber; 225. First spring;

[0049] 230. Second sealing component; 231. Second guide rod; 232. Second slide table; 233. Second turntable; 234. Second expansion plate; 2341. Second support plate; 2342. Second expansion bladder plate; 2343. Second air chamber; 235. Second spring;

[0050] 240. Grouting component; 241. Flexible grouting sleeve; 242. Grouting pipe;

[0051] 250. First guide member; 251. First sliding sleeve; 252. First sliding rod; 253. First guide plate; 2531. First plate body; 2532. V-shaped slotted piece; 2533. First guide post; 2534. Paving plate; 254. Third spring;

[0052] 260. Second guide member; 261. Second sliding sleeve; 262. Second sliding rod; 263. Second guide plate; 2631. Second plate body; 2632. Pressure roller; 2633. Second guide post; 2634. Soil covering plate; 264. Fourth spring. Detailed Implementation

[0053] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0054] Please see Figure 1 , Figure 2 and Figure 3 This invention discloses an intelligent reinforcement device for expansive soil foundations, including a walking platform 100 and a reinforcement unit 200 movably disposed at the forward end of the walking platform 100. The reinforcement unit 200 includes a base 210, a first sealing component 220, a second sealing component 230, a grouting component 240, a first guide component 250, and a second guide component 260. The first sealing component 220 is laterally disposed on one side of the base 210 for sealing one side of the crack to be reinforced; the second sealing component 230 is laterally disposed on the other side of the base 210 for... The grouting component 240 is disposed between the first sealing component 220 and the second sealing component 230 to grout and reinforce the crack between the first sealing component 220 and the second sealing component 230; the first guide component 250 is movably disposed on the first sealing component 220 to guide the first sealing component 220 according to the crack extension path; the second guide component 260 is movably disposed on the second sealing component 230 to guide the second sealing component 230 according to the crack extension path.

[0055] Specifically, please refer to Figure 4 , Figure 5 and Figure 6When reinforcing the expansive soil foundation by grouting, the platform 100 is moved to the crack so that the direction of movement of the platform 100 is roughly the same as the overall extension direction of the crack. Then the entire reinforcement unit 200 is adjusted to be above the crack opening.

[0056] When grouting reinforcement is required for a section of a crack, first insert the first guide 250 into the front end of the current crack segment, positioning the first sealing member 220 directly above the front end of the current crack segment. Then, insert the second guide 260 into the rear end of the current crack segment, positioning the second sealing member 230 directly above the rear end of the current crack segment. Subsequently, drive the base 210 vertically downwards, inserting the first sealing member 220 and the second sealing member 230 into the front and rear ends of the current crack segment respectively, until the grouting member 240 covers the opening of the current crack segment. Open the first sealing member 220 and the second sealing member 230 to seal the front and rear ends of the current crack segment respectively, isolating the current crack segment from other areas of the crack. Finally, open the grouting member 240 to fill and reinforce the interior of the current crack segment with grout.

[0057] After the grouting of the crack segment is completed, the drive platform 210 moves upward and resets, causing the first sealing component 220 and the second sealing component 230 to be pulled out of the crack. At the same time, the grouting component 240 also separates from the crack opening, while the first guide component 250 and the second guide component 260 remain inside the crack opening. Then, the traveling platform 100 moves forward a distance along the crack extension direction, so that the first sealing component 220 and the second sealing component 230 are just offset from the crack segment that has been grouted. Then, the platform 210 continues to move downward, sealing both sides of the crack segment with the first sealing component 220 and the second sealing component 230, and then using the grouting component 240 to grout and reinforce the crack segment. After the second grouting and reinforcement and removal of the sealing component, the grout injected in the first and second segments near the second sealing component 230 will fill the position where the second sealing component 230 was located during the second grouting using its own fluidity. By repeating this process, continuous segmented grouting and reinforcement of cracks in expansive soil foundations can be achieved.

[0058] It is worth noting that during the feeding process of the traveling platform 100, even if there is a deviation between the feeding path of the traveling platform 100 and the crack extension path, since the first guide 250 and the second guide 260 are always located inside the crack opening, the first guide 250 and the second guide 260 can adaptively offset relative to the base 210 in a direction perpendicular to the feeding path of the traveling platform 100 according to the change of the crack extension path. This allows the first guide 250 and the second guide 260 to always move synchronously along the crack extension path, thereby guiding the first sealing member 220 and the second sealing member 230 to always be located directly above the crack opening. This ensures that when grouting each crack segment is performed, the first sealing member 220 and the second sealing member 230 can be accurately inserted into the crack, while ensuring that the grouting member 240 can accurately cover the opening of the current crack segment, thereby improving the accuracy and reinforcement effect of crack grouting.

[0059] The core of this invention lies in sealing both ends of the crack to be reinforced using the first sealing component 220 and the second sealing component 230, thereby continuously segmenting the crack and isolating each segment from other areas. This prevents the grout from overflowing into the penetrating areas on both sides during the grouting process, ensuring that the grouting material can accurately fill the target crack segment, improving the grouting effect and reinforcement quality. It is particularly suitable for situations where the crack is long and there is a risk of penetration, effectively solving the problem of grout overflow and grouting failure caused by excessively long cracks in traditional grouting methods.

[0060] The first guide 250 and the second guide 260 can adaptively offset relative to the base 210 in a direction perpendicular to the feed path of the traveling platform 100 according to the changes in the crack extension path. This adaptive guidance function ensures that the first sealing member 220 and the second sealing member 230 are always accurately inserted into the crack. At the same time, the grouting member 240 can accurately cover the opening of the current crack segment, improving the accuracy of crack grouting reinforcement. Even when the crack extension path is curved or irregular, the device can still effectively adapt, ensuring the accuracy and reliability of the grouting operation and reducing the risk of reinforcement failure due to inaccurate positioning.

[0061] In one embodiment, please refer to Figure 1 and Figure 2 A tilting frame 110 is rotatably mounted on the walking platform 100, and a tilting cylinder 120 for driving the tilting frame 110 is provided on the walking platform 100; a telescopic and adjustable lifting frame 130 is slidably mounted inside the tilting frame 110, and a lifting cylinder 140 for driving the lifting frame 130 is also provided inside the tilting frame 110.

[0062] Specifically, in the initial state, the tilting frame 110 is placed horizontally on the walking platform 100, while the lifting frame 130 is retracted and folded inside the tilting frame 110, which can effectively lower the center of gravity of the entire device and improve the stability during the overall movement.

[0063] When the traveling platform 100 moves to the crack to be grouted and reinforced, the tilting frame 110 is driven to tilt upward by the tilting cylinder 120 until the tilting frame 110 tilts to a vertical position. At this time, the reinforcement unit 200 is also in a vertical suspended state. After the first guide 250 and the second guide 260 are inserted into the crack opening, the base 210 can be driven to move vertically up and down by the lifting frame 130, thereby driving the first sealing component 220, the second sealing component 230 and the grouting component 240 to move up and down synchronously, so as to realize the segmented grouting and reinforcement treatment of the crack.

[0064] It should be noted that in the initial state, the tilting frame 110 is placed horizontally, and the lifting frame 130 is retracted and folded inside the tilting frame 110, which effectively lowers the center of gravity of the entire device, improves the stability of the device during movement, and reduces the risk of overturning due to an excessively high center of gravity. It is suitable for scenarios involving movement on complex terrain or uneven ground, ensuring that the device remains stable during movement and avoiding equipment damage or construction delays caused by shaking or overturning.

[0065] By driving the tilting frame 110 upward to a vertical position through the tilting cylinder 120, the device can quickly switch from the moving mode to the working mode. This spatial conversion function allows the reinforcement unit 200 to be quickly adjusted from a horizontal state to a vertical suspended state, providing a suitable working posture for subsequent grouting reinforcement operations. In scenarios that require rapid switching of working states, such as at the crack reinforcement site, the device can quickly switch from the moving state to the working state, reducing equipment adjustment time and improving construction efficiency.

[0066] In yet another embodiment, please refer to Figure 7 The first sealing member 220 includes a first guide rod 221 horizontally fixed to one side of the base 210 and a first slide 222 slidably sleeved on the first guide rod 221. A first expansion piece 224 is provided at the bottom of the first slide 222, and a first spring 225 is sleeved at both ends of the first guide rod 221 to abut against the first slide 222.

[0067] Specifically, the first slide 222 can slide horizontally along the first guide rod 221, so that the first slide 222 can slide relative to the first guide rod 221 synchronously when the first guide 250 deviates along the crack path. The first guide 250 guides the first expansion piece 224 to ensure that the first expansion piece 224 is always directly above the current crack opening, which facilitates the smooth insertion of the first expansion piece 224 into the crack to achieve unilateral sealing. The first springs 225 at both ends of the first guide rod 221 can apply elastic force to the first slide 222, so that the first slide 222 can make tight contact with the inside of the crack after being inserted into the crack, thereby improving the stability of unilateral sealing.

[0068] Similarly, please see Figure 8 The second sealing member 230 includes a second guide rod 231 horizontally fixed to the other side of the base 210 and a second slide 232 slidably sleeved on the second guide rod 231. A second expansion piece 234 is provided at the bottom of the second slide 232, and a second spring 235 that abuts against the second slide 232 is sleeved at both ends of the second guide rod 231.

[0069] Specifically, the second slide 232 can slide horizontally along the second guide rod 231, so that the second slide 232 can slide relative to the second guide rod 231 synchronously when the second guide 260 deviates along the crack path. The second guide 260 guides the second expansion piece 234 to ensure that the second expansion piece 234 is always directly above the current crack opening, which facilitates the smooth insertion of the second expansion piece 234 into the crack to achieve unilateral sealing. The second springs 235 at both ends of the second guide rod 231 can apply elastic force to the second slide 232, so that the second slide 232 can make tight contact with the inside of the crack after being inserted into the crack, improving the stability of unilateral sealing. The surface of the expansion piece is provided with an anti-stick layer, which is conducive to separation from the slurry.

[0070] It should be noted that the first sealing component 220 and the second sealing component 230 slide horizontally along the guide rods (first guide rod 221 and second guide rod 231) via the slides (first slide 222 and second slide 232), and can adaptively adjust according to changes in the crack path; the guides (first guide 250 and second guide 260) guide the expansion pieces (first expansion piece 224 and second expansion piece 234) to ensure that the expansion pieces are always located directly above the crack opening, which facilitates smooth insertion into the crack to achieve unilateral sealing. This method is suitable for situations where the crack path is irregular or curved, and can effectively solve the problem of sealing difficulties caused by changes in the crack path in traditional sealing methods.

[0071] The springs (first spring 225 and second spring 235) at both ends of the guide rod apply elastic force to the slide table, so that the slide table can make tight contact with the inside of the crack after being inserted into the crack, thereby improving the stability of the sealing. In the case of uneven crack width or slight deformation, the elasticity of the spring can ensure that the sealing part is tightly attached to the inner wall of the crack, preventing the grout from overflowing from the sealing point and improving the effect of grouting reinforcement.

[0072] The combination of the adaptive sliding function of the sealing component and the path guidance of the guide component enables the device to dynamically adjust the sealing position during continuous operation, ensuring that each section of the crack can be accurately sealed. In projects that require segmented grouting reinforcement of long cracks, this dynamic adjustment capability can ensure that the device maintains efficient sealing and grouting effects during continuous movement, thereby improving the overall efficiency and quality of construction.

[0073] Further, please refer to Figure 7 and Figure 8 Considering that the bending direction is different at different locations of the crack, in order to ensure that the first expansion plate 224 and the first spring 225 can be smoothly inserted into the crack opening, the upper end of the first expansion plate 224 is fixedly fitted with a first turntable 223, and the first turntable 223 is rotatably installed in the first slide table 222; the upper end of the second expansion plate 234 is fixedly fitted with a second turntable 233, and the second turntable 233 is rotatably installed in the second slide table 232.

[0074] Specifically, due to the arrangement of the first turntable 223 and the second turntable 233, the first expansion piece 224 can rotate freely in the circumferential direction relative to the first slide 222, and the second expansion piece 234 can rotate freely in the circumferential direction relative to the second slide 232. In this way, regardless of the bending direction of the crack opening below the first expansion piece 224 and the second expansion piece 234, during the process of the first expansion piece 224 and the second expansion piece 234 descending and contacting the crack opening, the first expansion piece 224 and the second expansion piece 234 can passively and adaptively deflect in the bending direction of the crack until the deflection direction of the first expansion piece 224 and the second expansion piece 234 is consistent with the bending direction of the corresponding crack, so that the first expansion piece 224 and the second expansion piece 234 can be smoothly inserted into the corresponding crack opening.

[0075] It is worth noting that the arrangement of the first turntable 223 and the second turntable 233 allows the first expansion plate 224 and the second expansion plate 234 to rotate freely circumferentially relative to the sliding table (first sliding table 222 and second sliding table 232). Regardless of the curvature direction of the crack opening, the expansion plate can passively and adaptively deflect towards the curvature direction of the crack during its downward movement and contact with the crack opening, until the deflection direction is consistent with the curvature direction of the crack. This is suitable for the reinforcement of expansive soil foundations with complex crack paths and varied curvature directions, ensuring that the expansion plate can be smoothly inserted into the crack opening and avoiding insertion difficulties caused by irregular crack shapes.

[0076] With the adaptive rotation function of the turntable, the expansion plate can better fit the shape of the crack, thereby improving the reliability and stability of the sealing. In the case of uneven crack width or slight deformation, the adaptive deflection of the expansion plate can ensure that it fits tightly against the inner wall of the crack, preventing the slurry from overflowing from the sealing point.

[0077] The turntable design allows the expansion plates to dynamically adjust their direction during insertion into the crack, adapting to real-time changes in the crack. This dynamic adjustment capability ensures that the device maintains a highly efficient sealing effect during continuous operation. In projects that require segmented grouting reinforcement of long cracks, this dynamic adjustment capability ensures that each segment of the crack can be precisely sealed during continuous movement of the device.

[0078] Furthermore, please refer to Figure 5 An air pump 211 is installed on the base 210, and the output end of the air pump 211 is provided with an air pipe 212 that communicates with the first expansion plate 224 and the second expansion plate 234.

[0079] When sealing both ends of a certain crack segment, the air pump 211 is turned on, and air is blown into the first expansion plate 224 and the second expansion plate 234 through the air pipe 212, so that the first expansion plate 224 and the second expansion plate 234 expand and fit tightly against the inner wall of the crack. The first expansion plate 224 and the second expansion plate 234 can be used to seal the gap at both ends of the current crack segment, preventing the grout in the crack segment from overflowing from both ends during the subsequent grouting process.

[0080] After grouting is completed, the air pump 211 evacuates the first expansion plate 224 and the second expansion plate 234 to restore them to their initial state, so that the first expansion plate 224 and the second expansion plate 234 can be smoothly extracted from the crack.

[0081] Additionally, please see Figure 9 The first expansion piece 224 includes a first support piece 2241 and a first expansion bladder piece 2242 sleeved outside the first support piece 2241, and a first air cavity 2243 is formed between the first support piece 2241 and the first expansion bladder piece 2242.

[0082] Specifically, the first support piece 2241 serves as the internal support component of the entire first expansion piece 224, ensuring the overall rigidity of the first expansion piece 224 and ensuring that the first expansion piece 224 can be smoothly inserted into the crack when it is not inflated; when the first expansion piece 224 is inflated, gas enters the first air chamber 2243, causing the first expansion bladder 2242 to expand outward, thereby sealing the crack;

[0083] Similarly, please see Figure 10 The second expansion piece 234 includes a second support piece 2341 and a second expansion bladder piece 2342 sleeved on the outside of the second support piece 2341, and a second air cavity 2343 is formed between the second support piece 2341 and the second expansion bladder piece 2342.

[0084] Specifically, the second support piece 2341 serves as the internal support component of the entire second expansion piece 234, ensuring the overall rigidity of the second expansion piece 234 and ensuring that the second expansion piece 234 can be smoothly inserted into the crack when it is not inflated. When the second expansion piece 234 is inflated, gas enters the second air chamber 2343, causing the second expansion bladder 2342 to expand outward to seal the crack. The volume after expansion is very small in proportion to the size of each grouting range and can be ignored. In the space left after each extraction, the mortar can automatically overflow into the space and cover the crack.

[0085] It should be noted that by blowing air into the first expansion plate 224 and the second expansion plate 234 through the air pump 211, the expansion plates expand and fit tightly against the inner wall of the crack, thereby achieving a seal at both ends of the crack. This dynamic sealing method can effectively prevent grout from overflowing from both ends of the crack, ensuring the efficiency and sealing of the grouting process.

[0086] After grouting is completed, the air pump 211 evacuates the expansion plate to restore it to its initial state, so that it can be easily extracted from the crack. This recoverable design not only improves the reusability of the expansion plate, but also reduces equipment wear and replacement costs.

[0087] The first expansion piece 224 and the second expansion piece 234 are respectively composed of a support piece (first support piece 2241 and second support piece 2341) and an expansion bladder piece (first expansion bladder piece 2242 and second expansion bladder piece 2342), forming an air cavity (first air cavity 2243 and second air cavity 2343) inside. The support piece, as an internal support component, ensures the rigidity of the expansion piece in the uninflated state, enabling it to be smoothly inserted into the crack. In cases where the crack shape is complex and the width is uneven, this structural design can ensure the stability and reliability of the expansion piece when inserted into the crack.

[0088] In further embodiments, please refer to Figure 5 and Figure 6 The grouting component 240 includes a flexible grouting sleeve 241, the two ends of which are respectively sealed to the first slide 222 and the second slide 232. The bottom of the flexible grouting sleeve 241 is provided with an opening, and the top of the flexible grouting sleeve 241 is connected to a grouting pipe 242.

[0089] Specifically, the flexible grouting sleeve 241 has a certain degree of flexibility in the horizontal plane, so that when the first slide 222 and the second slide 232 are offset, the flexible grouting sleeve 241 can be adaptively bent and deformed in the horizontal plane, so that the extension direction of the entire flexible grouting sleeve 241 is consistent with the opening of the current crack segment, so that the subsequent flexible grouting sleeve 241 can accurately cover the opening of the current crack segment.

[0090] It is worth noting that the flexible grouting sleeve 241 can be bent and deformed arbitrarily in the horizontal plane, and it has a certain rigidity in the vertical direction, thus ensuring that it can stably cover the opening of the crack section without collapse or cracking, and ensuring that the grout can be stably injected into the crack during grouting. In order to meet the above functions of the flexible grouting sleeve 241, in practical applications, the flexible grouting sleeve 241 can be integrally molded from silicone material, and several rigid support columns are pre-embedded in the inner walls on both sides of the flexible grouting sleeve 241. The rigid support columns can be made of steel wire and extend vertically. In this way, the rigid support columns will not affect the bending and deformation of the entire flexible grouting sleeve 241 in the horizontal plane, but can provide vertical support for the flexible grouting sleeve 241, thereby preventing the flexible grouting sleeve 241 from collapsing.

[0091] Further, please refer to Figure 7 The first guide member 250 includes a first sliding sleeve 251 fixed on the first slide table 222 and a first sliding rod 252 vertically slidably sleeved in the first sliding sleeve 251. A first guide plate 253 is provided at the lower end of the first sliding rod 252, and a third spring 254 is sleeved on the first sliding rod 252 and abuts against the first guide plate 253.

[0092] The first slide bar 252 can slide vertically relative to the first slide table 222 and the first slide sleeve 251. At the same time, the third spring 254 always applies a vertical downward thrust to the first guide plate 253. In this way, no matter what height the base 210 is at, during the feeding process of the traveling table 100, the first guide plate 253 can always be in close contact with the crack opening, preventing the first guide plate 253 from detaching from the crack and causing guidance failure.

[0093] Similarly, please see Figure 8The second guide member 260 includes a second sliding sleeve 261 fixed on the second slide table 232 and a second sliding rod 262 vertically slidably sleeved in the second sliding sleeve 261. A second guide plate 263 is provided at the lower end of the second sliding rod 262, and a fourth spring 264 is sleeved on the second sliding rod 262 and abuts against the second guide plate 263.

[0094] The second slide bar 262 can slide vertically relative to the second slide table 232 and the second slide sleeve 261. At the same time, the fourth spring 264 always applies a vertical downward thrust to the second guide plate 263. In this way, no matter what height the base 210 is at, the second guide plate 263 can always be in close contact with the crack opening during the feeding process of the traveling table 100, preventing the second guide plate 263 from detaching from the crack and causing guidance failure.

[0095] Furthermore, please refer to Figure 11 and Figure 12 The first guide plate 253 includes a first plate 2531 fixed to the lower end of the first slide rod 252, and a first guide post 2533 is provided at the bottom of the first plate 2531; the second guide plate 263 includes a second plate 2631 fixed to the lower end of the second slide rod 262, and a second guide post 2633 is provided at the bottom of the second plate 2631.

[0096] Specifically, the first guide post 2533 and the second guide post 2633 are always embedded inside the crack opening. The position space of the guide post in the crack can be ignored. Thus, during the feeding process of the traveling platform 100 and the base platform 210, the first guide post 2533 and the second guide post 2633 can adaptively adjust according to the reverse extension of the crack, thereby guiding the first sealing member 220 and the second sealing member 230.

[0097] It should be noted that the first guide 250 and the second guide 260 slide vertically by sliding rods (first slide rod 252 and second slide rod 262), combined with the thrust of springs (third spring 254 and fourth spring 264), to ensure that the guide plates (first guide plate 253 and second guide plate 263) are always in close contact with the crack opening. This design can effectively prevent the guide plates from detaching from the crack, thereby avoiding guidance failure. It is suitable for scenarios with complex crack shapes and varying depths, ensuring that the guides can still effectively guide the sealing components into the crack at different heights.

[0098] The guide posts (first guide post 2533 and second guide post 2633) at the bottom of the guide plate are embedded inside the crack opening and can adaptively adjust according to the direction of crack extension. This adaptive function enables the guide to accurately guide the sealing part to move along the crack path. When the crack path is curved or irregular, it can ensure that the sealing part is smoothly inserted into the crack and improve the grouting effect.

[0099] Additionally, please see Figure 11 The first plate 2531 has a V-shaped slotted piece 2532 at its front end, and paving plates 2534 are symmetrically arranged on both sides of the first plate 2531.

[0100] During the feeding process, the V-shaped slotted plate 2532 can slot the crack opening at the front end to chisel the crack opening into a uniform notch with a V-shaped cross section, so that the first sealing member 220 and the second sealing member 230 can be smoothly inserted into the crack. At the same time, the paving plates 2534 on both sides can spread the soil blocks cut and peeled off by the V-shaped slotted plate 2532 to both sides of the crack opening, thereby avoiding the accumulation of peeled soil blocks at the crack opening and affecting the subsequent segmented grouting reinforcement treatment.

[0101] Please see Figure 12 The second plate 2631 is rotatably mounted with a pressure roller 2632 at its rear end, and soil covering plates 2634 are symmetrically arranged on both sides of the second plate 2631.

[0102] After the grouting and filling of the second sealing part are completed, as the traveling platform 100 is fed, the pressure roller 2632 can roll the grout at the crack opening to improve the filling density of the segmented grouting. At the same time, the soil covering plate 2634 can gather the soil clods spread on both sides back to the middle and cover the crack opening to bury the grout.

[0103] It is worth noting that the V-shaped slotted piece 2532 of the first guide plate 253 can slot the crack opening to form a uniform V-shaped cross section, which facilitates the insertion of the sealing component; at the same time, the spreading plate 2534 spreads the cut soil blocks to both sides to avoid the accumulation of soil blocks affecting grouting; the pressure roller 2632 of the second guide plate 263 rolls the grout at the crack opening after grouting to improve the grouting density, and the covering plate 2634 gathers the soil blocks on both sides to cover the crack opening and bury the grout; during the grouting reinforcement process, these designs can improve the grouting effect, reduce grout waste, and protect the crack surface after grouting.

[0104] The specific embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. An intelligent reinforcing device for swelling soil foundation, comprising a walking platform (100) and a reinforcing unit (200) movably arranged at the advancing end of the walking platform (100), characterized in that, The reinforcing unit (200) comprises: a base (210); a first blocking member (220) horizontally movably arranged on one side of the base (210) and used for blocking one side of a crack to be reinforced; a second blocking member (230) horizontally movably arranged on the other side of the base (210) and used for blocking the other side of the crack to be reinforced; a grouting member (240) arranged between the first blocking member (220) and the second blocking member (230) and used for grouting and reinforcing the crack between the first blocking member (220) and the second blocking member (230); a first guide member (250) liftable arranged on the first blocking member (220) and used for guiding the first blocking member (220) according to an extension path of the crack; a second guide member (260) liftable arranged on the second blocking member (230) and used for guiding the second blocking member (230) according to the extension path of the crack; the first blocking member (220) comprises a first guide rod (221) horizontally fixed on one side of the base (210) and a first sliding table (222) slidably sleeved on the first guide rod (221), the first sliding table (222) is provided with a first expansion sheet (224) at the bottom, and the first guide rod (221) is sleeved with a first spring (225) abutting against the first sliding table (222) at both ends; the second blocking member (230) comprises a second guide rod (231) horizontally fixed on the other side of the base (210) and a second sliding table (232) slidably sleeved on the second guide rod (231), the second sliding table (232) is provided with a second expansion sheet (234) at the bottom, and the second guide rod (231) is sleeved with a second spring (235) abutting against the second sliding table (232) at both ends; a first rotary table (223) is fixedly sleeved on the upper end of the first expansion sheet (224), and the first rotary table (223) is rotatably installed in the first sliding table (222); a second rotary table (233) is fixedly sleeved on the upper end of the second expansion sheet (234), and the second rotary table (233) is rotatably installed in the second sliding table (232); an air pump (211) is installed on the base (210), and an air pipe (212) in communication with the first expansion sheet (224) and the second expansion sheet (234) is arranged at the output end of the air pump (211); the first expansion sheet (224) comprises a first support sheet (2241) and a first expansion capsule sheet (2242) sleeved outside the first support sheet (2241), and a first air cavity (2243) is formed between the first support sheet (2241) and the first expansion capsule sheet (2242); the second expansion sheet (234) comprises a second support sheet (2341) and a second expansion capsule sheet (2342) sleeved outside the second support sheet (2341), and a second air cavity (2343) is formed between the second support sheet (2341) and the second expansion capsule sheet (2342); The grouting component (240) includes a flexible grouting sleeve (241), the two ends of which are respectively sealed to the first slide (222) and the second slide (232). The bottom of the flexible grouting sleeve (241) is provided with an opening, and the top of the flexible grouting sleeve (241) is connected to a grouting pipe (242). The first guide (250) includes a first sliding sleeve (251) fixed on the first slide table (222) and a first sliding rod (252) vertically slidably sleeved in the first sliding sleeve (251). The lower end of the first sliding rod (252) is provided with a first guide plate (253), and a third spring (254) is sleeved on the first sliding rod (252) and abuts against the first guide plate (253). The second guide (260) includes a second sliding sleeve (261) fixed on the second slide table (232) and a second sliding rod (262) vertically slidably sleeved in the second sliding sleeve (261). The lower end of the second sliding rod (262) is provided with a second guide plate (263), and a fourth spring (264) is sleeved on the second sliding rod (262) and abuts against the second guide plate (263).

2. The intelligent reinforcing device for swelling soil foundation according to claim 1, characterized in that, The first guide plate (253) includes a first plate body (2531) fixed to the lower end of the first slide bar (252), and a first guide post (2533) is provided at the bottom of the first plate body (2531). The second guide plate (263) includes a second plate body (2631) fixed to the lower end of the second slide bar (262), and a second guide post (2633) is provided at the bottom of the second plate body (2631).

3. The intelligent reinforcing device for swelling soil foundation according to claim 2, characterized in that, The first plate (2531) has a V-shaped slotted piece (2532) at its front end, and paving plates (2534) are symmetrically arranged on both sides of the first plate (2531).

4. The intelligent reinforcing device for swelling soil foundation according to claim 2, characterized in that, The second plate (2631) is rotatably mounted with a pressure roller (2632) at its rear end, and soil covering plates (2634) are symmetrically arranged on both sides of the second plate (2631).

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