Foundation reinforcing device of brick-concrete structure and construction method of foundation reinforcing device

Abstract

The invention relates to the technical field of soil solidification, and particularly discloses a foundation reinforcing device of a brick-concrete structure and a construction method thereof.The foundation reinforcing device of the brick-concrete structure comprises a rotating pipe and a drill bit internally provided with a containing cavity, the tail of the drill bit is coaxially and fixedly connected with one end of a hollow pipe, and the containing cavity of the drill bit communicates with an inner cavity of the hollow pipe; a plurality of grout outlet holes communicating with the drill bit containing cavity are formed in the peripheral side face of the drill bit, a plurality of smashing blades are fixed to the peripheral side face of the drill bit, the tail of the drill bit is coaxially and rotationally connected with one end of the rotating pipe, and a rotating cover plate is installed at the other end of the rotating pipe. According to the foundation reinforcement construction method for the brick-concrete structure, a plurality of soil reinforcement columns which are horizontally arranged and formed by mixing and solidifying soil and cement paste are formed in a soil layer below the brick-concrete structure foundation, deformation of the brick-concrete structure foundation is reduced, and the foundation reinforcement construction method for the brick-concrete structure is convenient to operate and easy to popularize.

Description

Technical Field

[0001] The present invention relates to the technical field of soil solidification, in particular to a foundation reinforcement device for a brick-concrete structure and a construction method thereof. Background Art

[0002] Brick-concrete structure refers to a building structure system that uses bricks, stones and other masonry as the main vertical load-bearing components, combined with reinforced concrete floor slabs, reinforced concrete beams, wooden beams and other horizontal load-bearing components. The materials of brick-concrete structure are easy to obtain, the cost is low, and the construction process is relatively simple. It is widely used in my country's civil buildings, small and medium-sized industrial buildings and rural residences.

[0003] The clay bricks or hollow bricks used in brick-concrete structures have low tensile and shear strength. When the foundation compressibility is uneven, the soil bearing capacity is poor, or the groundwater level changes greatly, it is easy to cause differences in foundation settlement, which in turn leads to cracks in the walls. In severe cases, it will affect the bearing capacity of the structure.

[0004] In the existing technology, a specific slurry is injected into the soil layer below the foundation of the brick-concrete structure. The bonding and filling effects of the slurry after solidification are used to improve the bearing capacity of the foundation and reduce settlement. However, the grouting effect is greatly affected by geological conditions. If the foundation soil layer is uneven, the slurry is difficult to spread evenly, and local reinforcement may be insufficient. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a foundation reinforcement device for a brick-concrete structure and a construction method thereof. The foundation reinforcement device for a brick-concrete structure forms a plurality of horizontally arranged soil reinforcement columns formed by mixing and consolidating soil and cement slurry in the soil layer below the foundation of the brick-concrete structure, thereby reducing the deformation of the foundation of the brick-concrete structure. The foundation reinforcement construction method for a brick-concrete structure is easy to operate and easy to promote.

[0006] The technical solutions adopted by the present invention to solve the technical problems include: On the one hand, a foundation reinforcement device for a brick-concrete structure is provided, comprising a rotating tube and a drill bit with an accommodating cavity inside, the drill bit having a head and a tail, the tail of the drill bit being coaxially fixedly connected to one end of the hollow tube, the accommodating cavity of the drill bit being connected to the inner cavity of the hollow tube, a plurality of slurry outlet holes connected to the drill bit accommodating cavity being opened on the outer peripheral side of the drill bit, and a plurality of crushing blades being fixed to the outer peripheral side of the drill bit.

[0007] The tail of the drill bit is coaxially connected to one end of the rotating tube for rotation, and a rotating cover plate is installed at the other end of the rotating tube. The hollow tube passes through the cover plate and extends to the outside of the rotating tube. A second gear is fixed to the outer peripheral side of the hollow tube corresponding to the position of the inner wall of the rotating tube. Several first gears meshing with the second gear are rotatably installed on the cover plate. The inner peripheral side of the rotating tube is provided with a tooth groove meshing with the first gear, and several stirring blades are fixed to the outer peripheral side of the rotating tube.

[0008] A plurality of guide plates are fixed on the cover plate, and the axial directions of the guide plates and the hollow tubes are parallel.

[0009] Among them, a number of drill rods are installed in series on the hollow tube.

[0010] As a preferred technical solution of the present invention, a fixing rope is installed on at least one guide plate.

[0011] As a preferred technical solution of the present invention, it also includes a pulling rope and a rotating connection part, and the head of the drill bit and one end of the pulling rope are connected through the rotating connection part.

[0012] As a preferred technical solution of the present invention, it also includes a base, a cutting rope and at least two cutting rope guides, the base is fixedly mounted with a driving mechanism and a mounting frame, the mounting frame is mounted with a first rotating wheel and a second rotating wheel arranged in parallel, the driving mechanism drives the second rotating wheel to rotate, and the cutting rope passes between the first rotating wheel and the second rotating wheel.

[0013] The cutting rope guide includes a guide rail, one or two guide components are installed on the guide rail, the guide component includes a slider slidably installed on the guide rail, a rotating guide wheel is installed on the slider, and each slider is installed with a positioning component that fixes the position of the slider.

[0014] As a preferred technical solution of the present invention, a plurality of crushing pieces for crushing the soil are installed at equal intervals on the cutting rope.

[0015] As a preferred technical solution of the present invention, both ends of the cutting rope are connected.

[0016] As a preferred technical solution of the present invention, the second rotating wheel is made of elastic material, and an annular groove is provided on the outer peripheral side surface of the second rotating wheel.

[0017] On the other hand, a method for reinforcing the foundation of a brick-concrete structure is provided, which uses any of the aforementioned devices for reinforcing the foundation of a brick-concrete structure, and comprises the following steps: A first construction trench and a second construction trench are dug on the ground 0.1m-3.0m away from the brick-concrete structure foundation. The brick-concrete structure foundation is located between the first construction trench and the second construction trench, and an external drilling rig is placed in the first construction trench.

[0018] The external drilling rig drives the drill bit to rotate through the drill rod and hollow tube, and the external drilling rig inserts the drill bit horizontally into the soil layer to be reinforced under the brick-concrete structure foundation. After the drill bit enters the soil layer to be reinforced 0.5m-1.0m, the external drilling rig continuously pumps cement slurry into the drill bit.

[0019] After the drill bit enters the second construction trench, the external drilling rig stops pumping cement slurry into the drill bit, the drill bit stops rotating, and the hollow tube and drill rod are separated.

[0020] The external drilling rig drives the drill rod to retract and separate from the soil layer to be reinforced.

[0021] As a preferred technical solution of the present invention, the following steps are also included: After the guide plate enters the soil layer to be reinforced, one end of the fixing rope is fixed on the guide plate.

[0022] After the hollow tube and drill pipe are separated, the fixing rope is tensioned using a tensioning jack.

[0023] As a preferred technical solution of the present invention, the following steps are also included: A third construction trench is dug on the ground 0.1m-3.0m away from the brick-concrete structure foundation, and the third construction trench connects the first construction trench and the second construction trench.

[0024] The base is placed in the first construction trench or the second construction trench. Cutting rope guides are placed in both the first construction trench and the second construction trench. The guide wheels of the cutting rope guides make the cutting rope fit the soil layer to be reinforced in the third construction trench.

[0025] The driving mechanism drives the second rotating wheel to rotate, and the first rotating wheel and the second rotating wheel move the cutting rope, and the cutting rope horizontally cuts the soil layer to be reinforced, and the cutting rope enters the soil layer to be reinforced.

[0026] The cutting rope drives one end of the pulling rope to pass through the soil layer to be reinforced.

[0027] Compared with the prior art, the present invention has the following beneficial effects: 1. In the foundation reinforcement device for a brick-concrete structure of the example of the present invention, the drill bit drives the crushing blades to crush the soil, and the hollow tube drives the second gear, the first gear, the rotating tube, and then drives the mixing blades to mix the cement slurry and the crushed soil; on the one hand, the rotation direction of the drill bit is opposite to that of the rotating tube, and the crushed soil is sheared and squeezed by the mixing blades after leaving the spiral crushing blades, and the cement slurry and the crushed soil are mixed evenly and solidified in the soil layer to be reinforced to form horizontal soil reinforcement columns, thereby reducing the deformation of the foundation of the brick-concrete structure; on the other hand, a horizontal pulling force is given to the drill bit by the pulling rope, so as to prevent the drill bit from deflecting upward and damaging the foundation of the brick-concrete structure during drilling into the soil layer to be reinforced, thereby improving the reliability of the foundation reinforcement device for the brick-concrete structure; on the other hand, the cutting rope causes a horizontal cutting seam to be generated in the soil layer to be reinforced, and the cement slurry flowing out of the slurry outlet flows along the cutting seam, thereby enhancing the water-proof property of the soil layer below the foundation of the brick-concrete structure.

[0028] 2. In the foundation reinforcement device for a brick-concrete structure of the present invention, during the mixing process of cement slurry and crushed soil, a fixing rope is pulled into the mixture of crushed soil and cement slurry. The fixing rope is located in the soil reinforcement column and enhances the structural strength of the soil reinforcement column.

[0029] 3. The foundation reinforcement construction method of the brick-concrete structure exemplified in the present invention requires less manpower, is easy to operate, and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of an embodiment of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 for Figure 2 A magnified schematic diagram of the structure at A; Figure 4 This is a schematic structural diagram of the cutting rope guide and driving mechanism of the present invention; Figure 5 Schematic diagram of the cutting rope structure of the present invention.

[0031] In the figure: 1 drill rod, 2 fixed rope, 3 hollow tube, 4 guide plate, 5 cover plate, 6 rotating tube, 7 drill bit, 8 slurry outlet hole, 9 crushing blade, 10 pulling rope, 11 rotating connection part, 12 stirring blade, 13 first gear, 14 second gear, 15 driving mechanism, 16 first rotating wheel, 17 second rotating wheel, 18 mounting frame, 19 base, 20 guide rail, 21 slider, 22 guide wheel, 23 cutting rope, 24 crushing part. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1 、 Figure 2 and Figure 3 The present embodiment discloses a foundation reinforcement device for a brick-concrete structure, including a rotating tube 6 and a drill bit 7 with an accommodating cavity provided therein. The drill bit 7 has a head and a tail. The tail of the drill bit 7 is threadedly sleeved or snap-connected to one end of the hollow tube 3. The accommodating cavity of the drill bit 7 is connected to the inner cavity of the hollow tube 3. A plurality of slurry outlet holes 8 communicating with the accommodating cavity of the drill bit 7 are opened on the outer peripheral side surface of the drill bit 7. A plurality of crushing blades 9 are fixed to the outer peripheral side surface of the drill bit 7.

[0034] The tail of the drill bit 7 and one end of the rotating tube 6 are connected through a bearing. The inner diameter of the rotating tube 6 is larger than the outer diameter of the hollow tube 3. The rotating tube 6 is sleeved on the outside of the hollow tube 3. The central axis of the hollow tube 3, the central axis of the rotating tube 6 and the central axis of the drill bit 7 coincide with each other. The other end of the rotating tube 6 is equipped with a rotating cover plate 5 through a bearing. The hollow tube 3 passes through the cover plate 5 and extends to the outside of the rotating tube 6. A second gear 14 is fixed to the position of the outer peripheral side of the hollow tube 3 corresponding to the inner wall of the rotating tube 6. Several first gears 13 meshing with the second gear 14 are rotatably installed on the cover plate 5. The inner peripheral side of the rotating tube 6 is provided with a tooth groove meshing with the first gear 13. Several stirring blades 12 are fixed to the outer peripheral side of the rotating tube 6.

[0035] A plurality of guide plates 4 are fixed on the cover plate 5 , and the axial directions of the guide plates 4 and the hollow tube 3 are parallel.

[0036] Among them, a plurality of drill rods 1 are installed on the hollow tube 3 in series.

[0037] Furthermore, the hollow tube 3, the cover plate 5, the rotating tube 6 and the drill bit 7 form a closed space, the first gear 13 and the second gear 14 are located in the closed space, and the first gear 13 and the second gear 14 are coated with lubricating oil, and the cover plate 5 and the hollow tube 3 are connected by a sealed bearing.

[0038] Furthermore, the outer peripheral side surface of the drill bit 7 is the cylindrical or conical outer surface of the drill bit 7 , which contacts the wall of the borehole during the drilling process of the drill bit 7 , and plays a role in guiding and maintaining the diameter of the borehole.

[0039] Furthermore, the head of the drill bit 7 is the end of the drill bit 7 that first contacts the soil, the tail of the drill bit 7 is the end of the drill bit 7 connected to the hollow tube 3, and the axial direction of the hollow tube 3 is along the direction of the central axis of the hollow tube 3.

[0040] The working process and principle of this embodiment are: Workers dug a first construction trench and a second construction trench on the ground 0.1m-3.0m away from the brick-concrete structure foundation. The foundation of the brick-concrete structure is located between the first construction trench and the second construction trench. The bottom of the brick-concrete structure is lower than the foundation of the brick-concrete structure. Workers placed an external drilling rig into the first construction trench. Workers used the external drilling rig to drive the drill bit 7 to rotate through the drill rod 1 and the hollow tube 3. The external drilling rig inserted the drill bit 7 horizontally into the soil layer to be reinforced under the brick-concrete structure foundation. After the drill bit 7 entered the soil layer to be reinforced 0.5m-1.0m, the workers used the external drilling rig to continuously pump cement slurry into the drill bit 7. The drill bit 7 drove the crushing blades 9 to crush the soil, and the cement slurry flowing out of the slurry outlet 8 flowed into the crushed soil.

[0041] Since the guide plate 4 and the axial direction of the hollow tube 3 are parallel, the crushed soil prevents the guide plate 4 on the cover plate 5 from rotating, that is, the cover plate 5 cannot rotate. The hollow tube 3 drives the second gear 14 to rotate, and the second gear 14 drives the rotating tube 6 to rotate through the first gear 13. The rotating rotating tube 6 causes the mixing blades 12 to stir the cement slurry and the crushed soil. The cement slurry and the crushed soil are mixed evenly and solidified in the soil layer to be reinforced to form a horizontal soil reinforcement column.

[0042] After the drill bit 7 enters the second construction trench, the worker stops the external drilling rig from pumping cement slurry into the drill bit 7, and the drill bit 7 stops rotating. The worker rotates the drill bit 7 to separate the hollow tube 3 and the drill rod 1. The external drilling rig drives the drill rod 1 to withdraw and detach from the soil layer to be reinforced. The horizontal soil reinforcement column formed in the soil layer to be reinforced reduces the deformation of the brick-concrete structure foundation.

[0043] The foundation reinforcement device of the brick-concrete structure forms a plurality of horizontally arranged soil reinforcement columns in the soil layer to be reinforced.

[0044] Furthermore, the mixing blades 12 are located in the mixture of cement slurry and crushed soil, and the guide plates 4 are located in the mixture of cement slurry and crushed soil or the guide plates 4 cut into the soil layer to be reinforced.

[0045] Furthermore, the crushing blades 9 are spirally arranged and the drill bit 7 is conical. The drill bit 7 drives the crushing blades 9 to rotate in the forward direction. The crushing blades 9 make it easier for the drill bit 7 to drill into the soil layer, and the rotation direction of the drill bit 7 is opposite to the rotation direction of the rotating tube 6. After the crushed soil leaves the spiral crushing blades 9, it is sheared and squeezed by the mixing blades 12, so that the soil clods in the crushed soil are broken and the crushed soil and cement slurry are evenly mixed.

[0046] Furthermore, measures such as interval construction, intermittent construction or increasing the amount of quick-setting agent in the cement slurry are taken on the soil layer to be reinforced to prevent slurry from bubbling and cross-drilling in adjacent drill holes. When the drill bit 7 enters the soil layer to be reinforced and the mixing blade 12 has not entered the soil layer to be reinforced, the worker uses a crowbar or a metal frame to limit the guide plate 4 so that the guide plate 4 cannot rotate and the guide plate 4 can only move along the axial direction of the hollow tube 3.

[0047] Furthermore, the tail end of the drill rod 1 is provided with an internal thread interface, the head of the drill rod 1 is provided with a matching external thread interface, and the end of the hollow tube 3 away from the drill bit 7 is provided with an external thread interface that is compatible with the internal thread interface of the drill rod 1, so that the drill rod 1 is easy to fix on the hollow tube 3.

[0048] Preferably, the length of the drill rod 1 is 30cm-500cm. The shorter the length of the drill rod 1, the shorter the width of the first construction trench, and the shorter the excavation and backfilling workload of the first construction trench. By increasing the number of drill rods 1, the moving distance of the drill bit 7 in the soil layer to be reinforced is increased.

[0049] Furthermore, a drilling rig is a commonly used equipment in existing construction, which is often used to open cylindrical holes in rocks or soil layers. It is widely used in pile foundation construction, survey and other scenarios. The drilling rig includes a power system, a transmission system and a slurry injection system. The power system is an electric motor, a fuel engine or a hydraulic motor, the transmission system is a gear, a chain or a drive shaft, and the slurry injection system includes a mud pump, a pipe and a rotary joint.

[0050] Furthermore, the main components of cement slurry are cement, sand, water and additives. Cement slurry is a slurry commonly used in foundation reinforcement in the prior art. Cement slurry can also be replaced by sodium silicate solution.

[0051] Example 2: Figure 1 and Figure 2 As shown, this embodiment discloses a foundation reinforcement device for a brick-concrete structure, the structure of which is roughly the same as that of the first embodiment, except that a fixing rope 2 is installed on at least one guide plate 4 of this embodiment, and the fixing rope 2 is a high-strength steel wire, a high-carbon steel strand or a carbon fiber bundle.

[0052] The working process and principle of this embodiment are: After the guide plate 4 enters the soil layer to be reinforced, the worker fixes one end of the fixing rope 2 on the guide plate 4.

[0053] After the drill bit 7 enters the second construction trench and the workers separate the hollow tube 3 and the drill rod 1, the workers remove the fixing rope 2 from the mixture of crushed soil and cement slurry. The workers set positioning seats in both the first construction trench and the second construction trench. The workers use tensioning jacks to tension the fixing rope 2 and fix the tensioned fixing rope 2 on the positioning seats. The fixing rope 2 is located in the soil reinforcement column, and the fixing rope 2 enhances the structural strength of the soil reinforcement column.

[0054] Furthermore, the positioning seat is a steel plate or a concrete block, and a plurality of protrusions are fixed on the fixing rope 2 to enhance the bonding strength between the fixing rope 2 and the soil reinforcement column.

[0055] Example 3: Figure 1 and Figure 2 As shown, this embodiment discloses a foundation reinforcement device for a brick-concrete structure, and its structure is roughly the same as that of the second embodiment, except that this embodiment also includes a pulling rope 10 and a rotating connection part 11, and the head of the drill bit 7 and one end of the pulling rope 10 are connected through the rotating connection part 11, and the rotating connection part 11 is a bearing or a rotating pin.

[0056] The working process and principle of this embodiment are: Workers insert a thin steel drill horizontally into the soil layer to be reinforced in the first construction trench. The steel drill is composed of multiple steel rods spliced ​​in series. Workers knock or use a jack to make the steel drill pass through the soil layer to be reinforced. After the steel drill emerges from the second construction trench, the workers fix the part of the steel drill located in the first construction trench and one end of the pulling rope 10. The workers use a tensioning jack, a car or a winch to pull out the steel drill in the soil layer to be reinforced from the second construction trench, and the steel drill makes the pulling rope 10 pass through the soil layer to be reinforced.

[0057] During the horizontal drilling process of the drill bit 7 in the soil layer to be reinforced, the worker or the external rope tightening device applies a horizontal pulling force to the drill bit 7 through the pulling rope 10, so as to prevent the drill bit 7 from deflecting upward and damaging the foundation of the brick-concrete structure during the drilling process of the soil layer to be reinforced, thereby improving the reliability of the foundation reinforcement device of the brick-concrete structure.

[0058] Furthermore, the diameter of the steel drill is less than one tenth of the diameter of the drill bit 7, or the diameter of the steel drill is 10.0 mm-50.0 mm.

[0059] Example 4: Figure 2 and Figure 4 As shown, this embodiment discloses a foundation reinforcement device for a brick-concrete structure, and its structure is roughly the same as that of the second embodiment, except that this embodiment also includes a pulling rope 10, a rotating connection part 11, a base 19, a cutting rope 23 and at least two cutting rope guides, and the head of the drill bit 7 and one end of the pulling rope 10 are connected by the rotating connection part 11, and the rotating connection part 11 is a bearing or a rotating pin.

[0060] The driving mechanism 15 and the mounting frame 18 are fixedly mounted on the base 19, and the mounting frame 18 is mounted with a first rotating wheel 16 and a second rotating wheel 17 arranged in parallel. The driving shaft of the driving mechanism 15 and one end of the second rotating wheel 17 are coaxially connected through a coupling, and the cutting rope 23 passes between the first rotating wheel 16 and the second rotating wheel 17.

[0061] The cutting rope guide includes a guide rail 20, on which one or two guide components are installed. The guide components include a slider 21 slidably installed on the guide rail 20, and a rotating guide wheel 22 is installed on the slider 21. Each slider 21 is equipped with a positioning component for fixing the position of the slider 21, and the positioning component is a bolt, a pin or a clamp.

[0062] Furthermore, the driving mechanism 15 is an electric motor, a fuel engine or a hydraulic motor. The driving mechanism 15 used in the present invention is a common device in the prior art, and its working method and structure are well-known technologies and will not be described in detail here.

[0063] The working process and principle of this embodiment are: Workers dig a third construction trench on the ground 0.1m-3.0m away from the brick-concrete structure foundation, and the third construction trench connects the first construction trench and the second construction trench. The base 19 is placed in the first construction trench or the second construction trench. Cutting rope guides are placed in the first construction trench and the second construction trench. The guide wheel 22 of the cutting rope guide makes the cutting rope 23 fit the soil layer to be reinforced in the third construction trench.

[0064] The worker drives the driving mechanism 15 to rotate the second rotating wheel 17, and the first rotating wheel 16 and the second rotating wheel 17 move the cutting rope 23. The cutting rope 23 horizontally cuts the soil layer to be reinforced, and the cutting rope 23 enters the soil layer to be reinforced. The cutting rope 23 drives one end of the pulling rope 10 to pass through the soil layer to be reinforced. The worker adjusts the position of the slider 21 and the guide wheel 22 on the guide rail 20, thereby adjusting the position of the cutting rope 23 to cut the soil layer to be reinforced.

[0065] A plurality of pulling ropes 10 pass through the soil layer to be reinforced, and the distance between two adjacent pulling ropes 10 in the soil layer to be reinforced is 1.0m-5.0m.

[0066] During the horizontal drilling process of the drill bit 7 in the soil layer to be reinforced, the external rope tightening device or the worker applies a horizontal pulling force to the drill bit 7 through the pulling rope 10 to prevent the drill bit 7 from deflecting upward and damaging the foundation of the brick-concrete structure during the drilling process in the soil layer to be reinforced, and the cutting rope 23 creates a horizontal cutting seam in the soil layer to be reinforced, and the cement slurry flowing out of the slurry outlet 8 flows along the cutting seam, thereby enhancing the water-proof property of the soil layer below the foundation of the brick-concrete structure.

[0067] Furthermore, the two ends of the cutting rope 23 are connected together, and the cutting rope 23 is ring-shaped. Workers use multiple sets of external guide wheels to make the cutting rope 23 rotate in a ring. The cutting rope 23 cyclically cuts the soil layer to be reinforced. The diameter of the cutting rope 23 is 5.0mm-20.0mm.

[0068] Furthermore, the drill bit 7 stops drilling for 5.0s-20s after drilling 20.0cm-100.0cm. The cement slurry flowing out of the slurry outlet 8 flows along the radial direction of the drill bit 7 and forms an annular protrusion in the soil layer, thereby enhancing the friction between the soil reinforcement column and the soil.

[0069] Example 5: Figure 5 As shown, this embodiment discloses a foundation reinforcement device for a brick-concrete structure, and its structure is roughly the same as that of the third or fourth embodiment. The difference is that a plurality of crushing parts 24 for crushing the soil are evenly installed on the cutting rope 23 of this embodiment. The crushing parts 24 are metal blocks, plastic blocks or ceramic blocks. The crushing parts 24 cut the soil layer to be reinforced along with the cutting rope 23, thereby increasing the cutting speed of the soil layer to be reinforced along with the cutting rope 23.

[0070] Example 6: Figure 4 As shown, this embodiment discloses a foundation reinforcement device for a brick-concrete structure, and its structure is roughly the same as that of the second embodiment, except that this embodiment also includes a base 19, a cutting rope 23 and at least two cutting rope guides. The driving mechanism 15 and the mounting frame 18 are fixedly mounted on the base 19, and the mounting frame 18 is mounted with a first rotating wheel 16 and a second rotating wheel 17 arranged in parallel. The central axis of the first rotating wheel 16 and the central axis of the second rotating wheel 17 are parallel. The driving mechanism 15 drives the second rotating wheel 17 to rotate, and the cutting rope 23 passes between the first rotating wheel 16 and the second rotating wheel 17, and the first rotating wheel 16 and the second rotating wheel 17 squeeze the cutting rope 23.

[0071] The cutting rope guide includes a guide rail 20, on which a slider 21 is slidably mounted. The slider 21 has a through hole for the cutting rope 23 to pass through. Each slider 21 is equipped with a positioning component for fixing the position of the slider 21, and the positioning component is a bolt or a clamp.

[0072] The working process and principle of this embodiment are: Workers dig a third construction trench on the ground 0.1m-3.0m away from the brick-concrete structure foundation, and the third construction trench connects the first construction trench and the second construction trench. The base 19 is placed in the first construction trench or the second construction trench. Cutting rope guides are placed in the first construction trench and the second construction trench. The perforation of the slider 21 allows the cutting rope 23 to fit the soil layer to be reinforced in the third construction trench.

[0073] The worker drives the driving mechanism 15 to rotate the second rotating wheel 17, and the first rotating wheel 16 and the second rotating wheel 17 move the cutting rope 23. The cutting rope 23 horizontally cuts the soil layer to be reinforced, and the cutting rope 23 enters the soil layer to be reinforced. The cutting rope 23 drives one end of the pulling rope 10 to pass through the soil layer to be reinforced. The worker adjusts the position of the slider 21 on the guide rail 20, thereby adjusting the cutting position of the cutting rope 23 on the soil layer to be reinforced.

[0074] A plurality of pulling ropes 10 pass through the soil layer to be reinforced, and the distance between two adjacent pulling ropes 10 in the soil layer to be reinforced is 1.0m-5.0m.

[0075] During the horizontal drilling process of the drill bit 7 in the soil layer to be reinforced, the external rope tightening device or the worker applies a horizontal pulling force to the drill bit 7 through the pulling rope 10 to prevent the drill bit 7 from deflecting upward and damaging the foundation of the brick-concrete structure during the drilling process in the soil layer to be reinforced, and the cutting rope 23 creates a horizontal cutting seam in the soil layer to be reinforced, and the cement slurry flowing out of the slurry outlet 8 flows along the cutting seam, thereby enhancing the water-proof property of the soil layer below the foundation of the brick-concrete structure.

[0076] Furthermore, the two ends of the cutting rope 23 are connected together, and the cutting rope 23 is ring-shaped. Workers use multiple sets of external guide wheels to make the cutting rope 23 rotate in a ring. The cutting rope 23 cyclically cuts the soil layer to be reinforced. The diameter of the cutting rope 23 is 5.0mm-20.0mm.

[0077] Example 7: Figure 4 As shown, this embodiment discloses a foundation reinforcement device for a brick-concrete structure, and its structure is roughly the same as that of embodiment four or embodiment six, except that the second wheel 17 of this embodiment is made of elastic rubber or elastic silicone material, and an annular groove is provided on the outer peripheral side of the second wheel 17 to increase the friction between the second wheel 17 and the cutting rope 23.

[0078] Example 8: Figure 1-Figure 4 As shown, this embodiment discloses a foundation reinforcement construction method for a brick-concrete structure, using the foundation reinforcement device for a brick-concrete structure of any one of the first to seventh embodiments, including the following steps: A first construction trench and a second construction trench are dug on the ground 0.1m-3.0m away from the brick-concrete structure foundation. The brick-concrete structure foundation is located between the first construction trench and the second construction trench, and an external drilling rig is placed in the first construction trench.

[0079] The external drilling rig drives the drill bit 7 to rotate through the drill rod 1 and the hollow tube 3, and the external drilling rig inserts the drill bit 7 horizontally into the soil layer to be reinforced under the brick-concrete structure foundation. After the drill bit 7 enters the soil layer to be reinforced 0.5m-1.0m, the external drilling rig continuously pumps cement slurry into the drill bit 7.

[0080] After the drill bit 7 enters the second construction trench, the external drilling rig stops pumping cement slurry into the drill bit 7, and the drill bit 7 stops rotating, separating the hollow tube 3 and the drill rod 1.

[0081] The external drilling rig drives the drill rod 1 to withdraw and separate from the soil layer to be reinforced.

[0082] The working process and principle of this embodiment are: The second gear 14 drives the rotating tube 6 to rotate through the first gear 13. The rotating rotating tube 6 causes the mixing blades 12 to mix the cement slurry and the crushed soil. The cement slurry and the crushed soil are mixed evenly to form soil reinforcement columns in the soil layer to be reinforced, thereby reducing the deformation of the brick-concrete structure foundation.

[0083] The brick-concrete structure foundation reinforcement construction method is easy to operate and easy to promote.

[0084] Example 9: As 1- Figure 4 As shown, this embodiment discloses a foundation reinforcement construction method for a brick-concrete structure, and its steps are substantially the same as those of the eighth embodiment, except that this embodiment further includes the following steps: After the guide plate 4 enters the soil layer to be reinforced, one end of the fixing rope 2 is fixed on the guide plate 4.

[0085] After the hollow tube 3 and the drill pipe 1 are separated, the fixing rope 2 is tensioned using a tensioning jack.

[0086] The working process and principle of this embodiment are: The fixing rope 2 is located in the soil reinforcement column. The fixing rope 2 enhances the structural strength of the soil reinforcement column and is easy to lay out.

[0087] Example 10: Figure 1-Figure 4 As shown, this embodiment discloses a foundation reinforcement construction method for a brick-concrete structure, and its steps are substantially the same as those of the ninth embodiment, except that this embodiment further includes the following steps: A third construction trench is dug on the ground 0.1m-3.0m away from the brick-concrete structure foundation, and the third construction trench connects the first construction trench and the second construction trench.

[0088] The base 19 is placed in the first construction trench or the second construction trench. Cutting rope guides are placed in both the first construction trench and the second construction trench. The guide wheels 22 of the cutting rope guides make the cutting rope 23 fit the soil layer to be reinforced in the third construction trench.

[0089] The driving mechanism 15 drives the second rotating wheel 17 to rotate, and the first rotating wheel 16 and the second rotating wheel 17 move the cutting rope 23. The cutting rope 23 horizontally cuts the soil layer to be reinforced, and the cutting rope 23 enters the soil layer to be reinforced.

[0090] The cutting rope 23 drives one end of the pulling rope 10 to pass through the soil layer to be reinforced.

[0091] The working process and principle of this embodiment are: During the horizontal drilling process of the drill bit 7 in the soil layer to be reinforced, the external rope tightening device or the worker applies a horizontal pulling force to the drill bit 7 through the pulling rope 10 to prevent the drill bit 7 from deflecting upward and damaging the foundation of the brick-concrete structure during the drilling process in the soil layer to be reinforced, and the cutting rope 23 creates a horizontal cutting seam in the soil layer to be reinforced, and the cement slurry flowing out of the slurry outlet 8 flows along the cutting seam, thereby enhancing the water-proof property of the soil layer below the foundation of the brick-concrete structure.

[0092] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A foundation reinforcement device for a brick-concrete structure, characterized by: The invention comprises a rotating tube (6) and a drill bit (7) having an accommodating cavity therein, the drill bit (7) having a head and a tail, the tail of the drill bit (7) being coaxially fixedly connected to one end of the hollow tube (3), the accommodating cavity of the drill bit (7) being in communication with the inner cavity of the hollow tube (3), a plurality of slurry outlet holes (8) being in communication with the accommodating cavity of the drill bit (7) being opened on the outer peripheral side surface of the drill bit (7), and a plurality of crushing blades (9) being fixed to the outer peripheral side surface of the drill bit (7); The tail of the drill bit (7) is coaxially rotatably connected to one end of the rotating tube (6); a rotating cover plate (5) is installed on the other end of the rotating tube (6); the hollow tube (3) passes through the cover plate (5) and extends to the outside of the rotating tube (6); a second gear (14) is fixed on the outer peripheral side of the hollow tube (3) at a position corresponding to the inner wall of the rotating tube (6); a plurality of first gears (13) meshing with the second gear (14) are rotatably installed on the cover plate (5); a tooth groove meshing with the first gear (13) is provided on the inner peripheral side of the rotating tube (6); and a plurality of stirring blades (12) are fixed on the outer peripheral side of the rotating tube (6); A plurality of guide plates (4) are fixed on the cover plate (5), and the axial directions of the guide plates (4) and the hollow tube (3) are parallel; A plurality of drill rods (1) are installed in series and extended on the hollow tube (3).

2. The foundation reinforcement device for a brick-concrete structure according to claim 1, characterized in that: A fixing rope (2) is mounted on at least one guide plate (4).

3. The foundation reinforcement device for a brick-concrete structure according to claim 2, characterized in that: It also includes a pulling rope (10) and a rotating connection part (11), and the head of the drill bit (7) and one end of the pulling rope (10) are connected via the rotating connection part (11).

4. The foundation reinforcement device for a brick-concrete structure according to claim 3, characterized in that: The invention also includes a base (19), a cutting rope (23) and at least two cutting rope guides, wherein a driving mechanism (15) and a mounting frame (18) are fixedly mounted on the base (19), and a first rotating wheel (16) and a second rotating wheel (17) are mounted on the mounting frame (18) and are arranged to rotate in parallel, wherein the driving mechanism (15) drives the second rotating wheel (17) to rotate, and the cutting rope (23) passes between the first rotating wheel (16) and the second rotating wheel (17); The cutting rope guide comprises a guide rail (20), one or two guide components are mounted on the guide rail (20), the guide components comprise a slider (21) slidably mounted on the guide rail (20), a rotating guide wheel (22) is mounted on the slider (21), and each slider (21) is mounted with a positioning assembly for fixing the position of the slider (21).

5. The foundation reinforcement device for a brick-concrete structure according to claim 4, characterized in that: A plurality of crushing pieces (24) for crushing the soil are installed at equal intervals on the cutting rope (23).

6. The foundation reinforcement device for a brick-concrete structure according to claim 4, characterized in that: The two ends of the cutting rope (23) are connected.

7. The foundation reinforcement device for a brick-concrete structure according to claim 4, characterized in that: The second rotating wheel (17) is made of elastic material, and an annular groove is provided on the outer peripheral side surface of the second rotating wheel (17).

8. A construction method for reinforcing the foundation of a brick-concrete structure, characterized in that: The foundation reinforcement device for a brick-concrete structure according to any one of claims 1 to 7 comprises the following steps: Dig a first construction trench and a second construction trench on the ground 0.1m-3.0m away from the brick-concrete structure foundation, with the brick-concrete structure foundation located between the first construction trench and the second construction trench, and place the external drilling rig into the first construction trench; The external drilling rig drives the drill bit (7) to rotate through the drill rod (1) and the hollow tube (3), and the external drilling rig inserts the drill bit (7) into the soil layer to be reinforced below the brick-concrete structure foundation in a horizontal direction. After the drill bit (7) enters 0.5m-1.0m into the soil layer to be reinforced, the external drilling rig continuously pumps cement slurry into the drill bit (7); After the drill bit (7) enters the second construction trench, the external drilling rig stops pumping cement slurry into the drill bit (7), and the drill bit (7) stops rotating, separating the hollow tube (3) and the drill rod (1); The external drilling rig drives the drill rod (1) to withdraw and separate from the soil layer to be reinforced.

9. The foundation reinforcement construction method of a brick-concrete structure according to claim 8, characterized in that: The following steps are also included: After the guide plate (4) enters the soil layer to be reinforced, one end of the fixing rope (2) is fixed to the guide plate (4); After the hollow tube (3) and the drill rod (1) are separated, the fixing rope (2) is tensioned using a tensioning jack.

10. The foundation reinforcement construction method of a brick-concrete structure according to claim 9, characterized in that: The following steps are also included: Dig a third construction trench on the ground 0.1m-3.0m away from the brick-concrete structure foundation, and connect the first construction trench and the second construction trench; The base (19) is placed in the first construction trench or the second construction trench, and a cutting rope guide is placed in both the first construction trench and the second construction trench, and the guide wheel (22) of the cutting rope guide makes the cutting rope (23) fit the soil layer to be reinforced at the third construction trench; The driving mechanism (15) drives the second rotating wheel (17) to rotate, and the first rotating wheel (16) and the second rotating wheel (17) move the cutting rope (23), and the cutting rope (23) horizontally cuts the soil layer to be reinforced, and the cutting rope (23) enters the soil layer to be reinforced; The cutting rope (23) drives one end of the pulling rope (10) to pass through the soil layer to be reinforced.

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