Yellow River alluvial stratum secant pile rotary digging hole forming stability enhancing device and intelligent regulation and control method

Abstract

The invention provides a Yellow River alluvial stratum secant pile rotary digging hole forming stability enhancing device and an intelligent regulation and control method, and relates to the field of hole digging devices. The Yellow River alluvial stratum secant pile rotary excavating hole forming stability enhancing device comprises a stabilizing device, two adjusting devices and a guide pipe, the two adjusting devices are arranged at the positions, close to the two ends, of the side wall of the guide pipe correspondingly, the stabilizing device is arranged in the middle of the side wall of the guide pipe, and one end of the guide pipe is fixedly connected with a mounting sleeve; and one ends of the four first connecting rods are rotationally connected with second connecting rods correspondingly, the side walls of the four first connecting rods and the side walls of the four second connecting rods are fixedly connected with first protection plates correspondingly, and the side walls of the four mounting frames are fixedly connected with second protection plates correspondingly. By arranging the stabilizing device and the adjusting device, the secant pile is effectively fixed after being installed, the stability of the secant pile is improved, the intelligent slurry proportioning system can automatically adjust the proportion and density of slurry according to geological conditions and construction parameters, and the construction continuity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hole-digging devices, and in particular to a device for enhancing the stability of hole-digging by interlocking piles in alluvial strata of the Yellow River and an intelligent control method. Background Art

[0002] The alluvial strata of the Yellow River are usually composed of multiple layers of soil with different properties, including silt, sand, clay, silt, etc. These soil layers vary greatly in physical and mechanical properties, such as particle size, water content, density, etc. The interlocking piles interlock with each other to form a continuous water-stop curtain, which can effectively prevent groundwater from seeping into the construction area.

[0003] Although the existing technology can prevent groundwater from seeping into the construction area by using bite piles, in soft soil, sandy soil and other easily collapsed strata, traditional wall protection measures are difficult to effectively prevent the collapse of the hole wall, which leads to the instability of the hole wall during the drilling process. Therefore, technical personnel in this field provide a stability enhancement device and intelligent control method for rotary drilling of holes in the alluvial strata of the Yellow River using bite piles to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a device for enhancing the stability of rotary drilling of interlocking piles in the alluvial strata of the Yellow River and an intelligent control method, which solves the problems of the inability to monitor the construction process in real time and the poor stability of the pile body when installing the interlocking piles.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for enhancing the stability of rotary drilling of interlocking piles in the alluvial stratum of the Yellow River and an intelligent control method, comprising a stabilizing device, two adjusting devices and a guide tube, wherein the two adjusting devices are respectively arranged at the two ends of the side wall of the guide tube, the stabilizing device is arranged in the middle of the side wall of the guide tube, one end of the guide tube is fixedly connected to a mounting sleeve, and the other end of the guide tube is fixedly connected to a protective sleeve, the stabilizing device comprises four first connecting rods, one end of the four first connecting rods is respectively rotatably connected to a second connecting rod, the four first connecting rods and the four second connecting rods The side walls are respectively fixedly connected with the first protective plate, the side walls of one end of the four second connecting rods are respectively rotatably connected with the mounting brackets, the side walls of the four mounting brackets are respectively fixedly connected with the second protective plate, the two adjusting devices respectively include a fixed sleeve, the two fixed sleeves are respectively fixedly connected with the second mounting ring on the side away from the middle of the catheter, the two fixed sleeves are respectively fixedly connected with the first mounting ring on the side close to the middle of the catheter, springs are respectively arranged in the middle of the two fixed sleeves, the two fixed sleeves are respectively provided with four grooves in a circular array on the side close to the middle of the catheter, and the side walls of the eight grooves are respectively fixedly connected with connecting blocks.

[0008] Preferably, the other ends of the four first connecting rods are rotatably connected to the four connecting block side walls located on one side of the conduit, and the other ends of the four second connecting rods are rotatably connected to the four connecting block side walls located on the other side of the conduit.

[0009] Preferably, one end of the two springs is fixedly connected to a side of the second mounting ring close to the middle of the catheter, and the other end of the two springs is fixedly connected to a side of the first mounting ring away from the middle of the catheter.

[0010] Preferably, the protective sleeve and the catheter are adapted to each other.

[0011] Preferably, an intelligent control method for a device for enhancing the stability of a hole formed by rotary drilling of interlocking piles in the alluvial strata of the Yellow River comprises the following steps:

[0012] S1. Drill a hole at the location of the formation. After the drilling is completed, insert a conduit into the hole, and respectively sleeve a stabilizing device and two adjusting devices on the side walls of the conduit. At this time, a protective sleeve is installed on the top of the conduit;

[0013] S2. After one section of the conduit is placed in the hole, another section of the conduit is placed as needed, and a mounting sleeve is installed at the bottom end of the conduit. The protective sleeve and the mounting sleeve are matched and then inserted into the hole. The above operation is repeated until the conduit at the bottom reaches the bottom end of the hole.

[0014] S3. After the overall installation of the conduit is completed, the distance between the two adjusting devices will gradually shorten under the pressure of their own weight. When the distance between the two adjusting devices gradually shortens, the first connecting rod and the second connecting rod gradually bend, thereby straightening and resisting pressure on the conduit.

[0015] Preferably, an intelligent control method for a device for enhancing the stability of a hole formed by rotary drilling of interlocking piles in the alluvial strata of the Yellow River further comprises the following steps:

[0016] S1. Install pressure sensors at different depths of the borehole wall to monitor the pressure changes on the borehole wall in real time. Install water level sensors inside and outside the borehole to monitor the dynamic changes of the groundwater level. Use wireless transmission technology to transmit sensor data to the central control room in real time to reduce wiring complexity and construction interference. The sensor network collects key parameters such as borehole wall stability, groundwater level, mud density, torque and speed in real time to ensure the timeliness and accuracy of the data. The central control system quickly analyzes the real-time data, identifies potential risk factors such as borehole wall deformation, sudden changes in groundwater level, abnormal mud density, etc., and issues early warning information;

[0017] S2. Install a laser rangefinder on the drill rod to measure the verticality of the pile in real time. Install a gyroscope on the drill rod to detect the inclination angle of the drill rod. The laser rangefinder and gyroscope provide high-precision measurement data to ensure accurate monitoring of the verticality of the pile. The operator can monitor the correction process in real time through the user interface and intervene and adjust in time.

[0018] S3. According to the geological exploration data, the soil type, particle distribution, water content and other parameters are analyzed to determine the basic ratio of the mud. According to the ratio algorithm results, mud additives such as bentonite and CMC are automatically injected to adjust the viscosity and density of the mud. Finally, various data during the construction process are collected, including drilling speed, torque, rotation speed, mud density, groundwater level, etc., and the geological exploration data are integrated to provide detailed geological information.

[0019] Preferably, the mud pressure (PmudPmud) in step S3 is used to balance the formation pressure and prevent the hole wall from collapsing. The mud pressure can be calculated by the following formula:

[0020] P mud =ρ·g·h

[0021] Among them, P mud is the mud pressure, ρ is the mud density, g is the acceleration due to gravity, and h is the height of the mud column;

[0022] At the same time, in order to prevent the "piping" phenomenon, it is necessary to ensure that the mud pressure is greater than or equal to the water and soil pressure. The water and soil pressure can be calculated by the following formula:

[0023] P soil=ρ soil ·g·h soil

[0024] Among them, P soil is the soil and water pressure, ρ soil is the soil density, h soil is the soil layer thickness.

[0025] Working principle: Drill a hole at the location of the formation. After the drilling is completed, insert the catheter 3 into the hole, and the stabilizing device 1 and the two adjusting devices 2 are respectively sleeved on the side walls of the catheter 3. At this time, a protective sleeve 4 is installed at the top of the catheter 3. After a section of the catheter 3 is placed in the hole, another section of the catheter 3 is placed as needed, and the installation sleeve 5 is installed at the bottom of the catheter 3. After the protective sleeve 4 and the installation sleeve 5 are matched, they are continued to be inserted into the hole. Repeat the above operation until the catheter 3 at the bottom reaches the bottom of the hole. After the catheter 3 is installed as a whole, the distance between the two adjusting devices 2 will gradually shorten under the pressure of their own gravity. When the distance between the two adjusting devices 2 is gradually shortened, the first connecting rod 103 and the second connecting rod 105 are gradually bent to form a straightening and pressure resistance for the catheter 3. Pressure sensors are installed at different depths of the hole wall to monitor the pressure changes on the hole wall in real time. Water level sensors are installed inside and outside the hole to monitor the dynamic changes of the groundwater level. Wireless transmission technology is used to transmit sensor data to the central control room in real time, reducing wiring complexity and Construction interference, the sensor network collects key parameters such as hole wall stability, groundwater level, mud density, torque and speed in real time to ensure the timeliness and accuracy of the data. The central control system quickly analyzes the real-time data, identifies potential risk factors such as hole wall deformation, sudden change of groundwater level, abnormal mud density, etc., and issues early warning information. A laser rangefinder is installed on the drill rod to measure the verticality of the pile in real time. A gyroscope is installed on the drill rod to detect the inclination angle of the drill rod. The laser rangefinder and gyroscope provide high-precision measurement data to ensure accurate monitoring of the verticality of the pile. Operators can monitor the correction process in real time through the user interface, intervene and adjust in time, analyze soil type, particle distribution, water content and other parameters according to geological exploration data, determine the basic ratio of mud, and automatically inject mud additives such as bentonite and CMC according to the results of the ratio algorithm to adjust the viscosity and density of the mud. Finally, various data during the construction process are collected, including drilling speed, torque, speed, mud density, groundwater level, etc., and geological exploration data are integrated to provide detailed geological information.

[0026] (III) Beneficial effects

[0027] The present invention provides a device for enhancing the stability of rotary drilling of interlocking piles in the alluvial strata of the Yellow River and an intelligent control method. It has the following beneficial effects:

[0028] 1. By setting a stabilizing device and an adjusting device, after the overall installation of the conduit is completed, the distance between the two adjusting devices will gradually shorten under the pressure of their own gravity. When the distance between the two adjusting devices gradually shortens, the first connecting rod and the second connecting rod gradually bend to form a straightening and pressure-resistant function for the conduit, which can effectively fix the bite pile after installation and improve its stability.

[0029] 2. The intelligent mud proportioning system can automatically adjust the proportion and density of the mud according to geological conditions and construction parameters to ensure the wall protection effect and fluidity of the mud. This reduces construction interruptions caused by mud problems and improves construction continuity.

[0030] 3. The automatic correction system can monitor the verticality of the pile in real time and automatically correct it when the deviation exceeds the allowable range, avoiding construction delays caused by pile deflection. The automatic correction system can ensure that the verticality of the pile meets the design requirements, avoiding insufficient bearing capacity and structural instability caused by pile deflection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the stabilizing device of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the regulating device of the present invention;

[0034] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0035] Figure 5 It is a front view structural schematic diagram of the stabilizing device of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the intelligent control method of the present invention.

[0037] Among them, 1. Stabilizing device; 101. First protective plate; 102. Second protective plate; 103. First connecting rod; 104. Mounting frame; 105. Second connecting rod; 2. Adjusting device; 201. Fixed sleeve; 202. First mounting ring; 203. Second mounting ring; 204. Spring; 205. Groove; 206. Connecting block; 3. Conduit; 4. Protective sleeve; 5. Mounting sleeve. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] like Figure 1-6 As shown, the embodiment of the present invention provides a device for enhancing the stability of rotary drilling of interlocking piles in the alluvial stratum of the Yellow River and an intelligent control method, comprising a stabilizing device 1, two adjusting devices 2 and a conduit 3, the two adjusting devices 2 are respectively arranged on the side walls of the conduit 3 near the two ends, the stabilizing device 1 is arranged in the middle of the side wall of the conduit 3, one end of the conduit 3 is fixedly connected with a mounting sleeve 5, and the other end of the conduit 3 is fixedly connected with a protective sleeve 4, the stabilizing device 1 comprises four first connecting rods 103, one end of the four first connecting rods 103 is respectively rotatably connected with the second connecting rods 105, the side walls of the four first connecting rods 103 and the four second connecting rods 105 are respectively fixedly connected with the first protective plates 101, the side walls of the four second connecting rods 105 are respectively rotatably connected with the mounting brackets 104, and the side walls of the four mounting brackets 104 are respectively fixedly connected with the second protective plates 102, the two adjusting devices 2 respectively comprise fixing sleeves 20 1. The two fixing sleeves 201 are respectively fixedly connected with the second mounting ring 203 on the side away from the middle of the conduit 3, and the two fixing sleeves 201 are respectively fixedly connected with the first mounting ring 202 on the side close to the middle of the conduit 3. Springs 204 are respectively arranged in the middle of the two fixing sleeves 201. The two fixing sleeves 201 are respectively provided with four grooves 205 in a circular array on the side close to the middle of the conduit 3, and the side walls of the eight grooves 205 are respectively fixedly connected with connecting blocks 206. By setting the stabilizing device 1 and the adjusting device 2, after the overall installation of the conduit 3 is completed, the distance between the two adjusting devices 2 will gradually shorten under the pressure of their own gravity. When the distance between the two adjusting devices 2 is gradually shortened, the first connecting rod 103 and the second connecting rod 105 are gradually bent to form a straightening and pressure resistance for the conduit 3, which can effectively fix the bite pile after installation and improve its stability.

[0041] The other ends of the four first connecting rods 103 are rotatably connected to the side walls of four connecting blocks 206 located on one side of the catheter 3, and the other ends of the four second connecting rods 105 are rotatably connected to the side walls of four connecting blocks 206 located on the other side of the catheter 3. One end of the two springs 204 is fixedly connected to the second mounting ring 203 close to the middle of the catheter 3, and the other ends of the two springs 204 are fixedly connected to the first mounting ring 202 away from the middle of the catheter 3.

[0042] An intelligent control method for a device for enhancing the stability of a hole formed by rotary drilling of a occlusal pile in the alluvial stratum of the Yellow River, comprising the following steps:

[0043] S1. Drill a hole at the location of the formation. After the drilling is completed, insert the conduit 3 into the hole, and respectively sleeve the stabilizing device 1 and the two adjusting devices 2 on the side walls of the conduit 3. At this time, install the protective sleeve 4 on the top of the conduit 3;

[0044] S2. After one section of the conduit 3 is placed in the hole, another section of the conduit 3 is placed as needed, and the installation sleeve 5 is installed at the bottom end of the conduit 3. The protective sleeve 4 and the installation sleeve 5 are matched and then continue to be inserted into the hole. The above operation is repeated until the bottom end of the conduit 3 reaches the bottom end of the hole;

[0045] S3. After the overall installation of the conduit 3 is completed, the distance between the two adjusting devices 2 will gradually shorten under the pressure of their own weight. When the distance between the two adjusting devices 2 gradually shortens, the first connecting rod 103 and the second connecting rod 105 gradually bend, thereby straightening and resisting pressure on the conduit 3.

[0046] An intelligent control method for a device for enhancing the stability of a hole formed by rotary drilling of a occlusal pile in the alluvial stratum of the Yellow River, further comprising the following steps:

[0047] S1. Install pressure sensors at different depths of the borehole wall to monitor the pressure changes on the borehole wall in real time. Install water level sensors inside and outside the borehole to monitor the dynamic changes of the groundwater level. Use wireless transmission technology to transmit sensor data to the central control room in real time to reduce wiring complexity and construction interference. The sensor network collects key parameters such as borehole wall stability, groundwater level, mud density, torque and speed in real time to ensure the timeliness and accuracy of the data. The central control system quickly analyzes the real-time data, identifies potential risk factors such as borehole wall deformation, sudden changes in groundwater level, abnormal mud density, etc., and issues early warning information;

[0048] S2. Install a laser rangefinder on the drill rod to measure the verticality of the pile in real time. Install a gyroscope on the drill rod to detect the inclination angle of the drill rod. The laser rangefinder and gyroscope provide high-precision measurement data to ensure accurate monitoring of the verticality of the pile. The operator can monitor the correction process in real time through the user interface and intervene and adjust in time.

[0049] S3. According to the geological exploration data, the soil type, particle distribution, water content and other parameters are analyzed to determine the basic ratio of the mud. According to the ratio algorithm results, mud additives such as bentonite and CMC are automatically injected to adjust the viscosity and density of the mud. Finally, various data during the construction process are collected, including drilling speed, torque, rotation speed, mud density, groundwater level, etc., and the geological exploration data are integrated to provide detailed geological information.

[0050] The mud pressure (PmudPmud) in step S3 is used to balance the formation pressure and prevent the hole wall from collapsing. The mud pressure can be calculated by the following formula:

[0051] P mud =ρ·g·h

[0052] Among them, P mud is the mud pressure, ρ is the mud density, g is the acceleration due to gravity, and h is the height of the mud column;

[0053] At the same time, in order to prevent the "piping" phenomenon, it is necessary to ensure that the mud pressure is greater than or equal to the water and soil pressure. The water and soil pressure can be calculated by the following formula:

[0054] P soil =ρ soil ·g·h soil

[0055] Among them, P soil is the soil and water pressure, ρ soil is the soil density, h soil is the soil layer thickness.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for enhancing the stability of rotary drilling of interlocking piles in alluvial strata of the Yellow River, comprising a stabilizing device (1), two adjusting devices (2) and a guide tube (3), wherein the two adjusting devices (2) are respectively arranged at the side walls of the guide tube (3) at the two ends thereof, and the stabilizing device (1) is arranged at the middle of the side walls of the guide tube (3), characterized in that: One end of the conduit (3) is fixedly connected to a mounting sleeve (5), and the other end of the conduit (3) is fixedly connected to a protective sleeve (4). The stabilizing device (1) comprises four first connecting rods (103), one end of the four first connecting rods (103) are respectively rotatably connected to second connecting rods (105), the side walls of the four first connecting rods (103) and the four second connecting rods (105) are respectively fixedly connected to first protective plates (101), one end of the four second connecting rods (105) are respectively rotatably connected to mounting frames (104), and the side walls of the four mounting frames (104) are respectively fixedly connected to second protective plates (101). 02), the two adjusting devices (2) respectively comprise a fixed sleeve (201), the two fixed sleeves (201) are respectively fixedly connected with a second mounting ring (203) on the side away from the middle of the conduit (3), the two fixed sleeves (201) are respectively fixedly connected with a first mounting ring (202) on the side close to the middle of the conduit (3), a spring (204) is respectively arranged in the middle of the two fixed sleeves (201), the two fixed sleeves (201) are respectively provided with four grooves (205) in a circumferential array on the side close to the middle of the conduit (3), and the side walls of the eight grooves (205) are respectively fixedly connected with a connecting block (206).

2. According to claim 1, a device for enhancing the stability of rotary drilling of interlocking piles in the Yellow River alluvial stratum and an intelligent control method, characterized in that: The other ends of the four first connecting rods (103) are rotatably connected to the side walls of four connecting blocks (206) located on one side of the conduit (3), and the other ends of the four second connecting rods (105) are rotatably connected to the side walls of four connecting blocks (206) located on the other side of the conduit (3).

3. The device for enhancing the stability of rotary drilling of interlocking piles in the alluvial strata of the Yellow River according to claim 1 is characterized by: One end of the two springs (204) is fixedly connected to a side of the second mounting ring (203) close to the middle of the catheter (3), and the other end of the two springs (204) is fixedly connected to a side of the first mounting ring (202) away from the middle of the catheter (3).

4. The device for enhancing the stability of rotary drilling of interlocking piles in the alluvial strata of the Yellow River according to claim 1 is characterized by: The protective sleeve (4) and the catheter (3) are adapted to each other.

5. The intelligent control method of the Yellow River alluvial stratum occlusal pile rotary drilling hole stability enhancement device according to claim 1 is characterized by: The following steps are involved: S1. Drilling a hole at the location of the formation. After the drilling is completed, inserting a conduit (3) into the hole, and sleeve-mounting a stabilizing device (1) and two adjusting devices (2) on the side walls of the conduit (3) respectively. At this time, installing a protective sleeve (4) on the top of the conduit (3); S2. After one section of the conduit (3) is placed in the hole, another section of the conduit (3) is placed as needed, and a mounting sleeve (5) is installed at the bottom end of the conduit (3). The protective sleeve (4) and the mounting sleeve (5) are matched and then continue to be inserted into the hole. The above operation is repeated until the conduit (3) at the bottom reaches the bottom end of the hole; S3. After the overall installation of the conduit (3) is completed, the distance between the two adjusting devices (2) will gradually shorten under the pressure of their own weight. When the distance between the two adjusting devices (2) gradually shortens, the first connecting rod (103) and the second connecting rod (105) gradually bend, thereby forming a straightening and pressure-resistant function for the conduit (3).

6. The intelligent control method of the Yellow River alluvial stratum occlusal pile rotary drilling hole stability enhancement device according to claim 1 is characterized by: The following steps are also included: S1. Install pressure sensors at different depths of the borehole wall to monitor the pressure changes on the borehole wall in real time. Install water level sensors inside and outside the borehole to monitor the dynamic changes of the groundwater level. Use wireless transmission technology to transmit sensor data to the central control room in real time to reduce wiring complexity and construction interference. The sensor network collects key parameters such as borehole wall stability, groundwater level, mud density, torque and speed in real time to ensure the timeliness and accuracy of the data. The central control system quickly analyzes the real-time data, identifies potential risk factors such as borehole wall deformation, sudden changes in groundwater level, abnormal mud density, etc., and issues early warning information; S2. Install a laser rangefinder on the drill rod to measure the verticality of the pile in real time. Install a gyroscope on the drill rod to detect the inclination angle of the drill rod. The laser rangefinder and gyroscope provide high-precision measurement data to ensure accurate monitoring of the verticality of the pile. The operator can monitor the correction process in real time through the user interface and intervene and adjust in time. S3. According to the geological exploration data, the soil type, particle distribution, water content and other parameters are analyzed to determine the basic ratio of the mud. According to the ratio algorithm results, mud additives such as bentonite and CMC are automatically injected to adjust the viscosity and density of the mud. Finally, various data during the construction process are collected, including drilling speed, torque, rotation speed, mud density, groundwater level, etc., and the geological exploration data are integrated to provide detailed geological information.

7. The intelligent control method of the Yellow River alluvial stratum occlusal pile rotary drilling hole stability enhancement device according to claim 6 is characterized by: The mud pressure (PmudPmud) in step S3 is used to balance the formation pressure and prevent the hole wall from collapsing. The mud pressure can be calculated by the following formula: P mud =ρ·g·h Among them, P mud is the mud pressure, ρ is the mud density, g is the acceleration due to gravity, and h is the height of the mud column; At the same time, in order to prevent the "piping" phenomenon, it is necessary to ensure that the mud pressure is greater than or equal to the water and soil pressure. The water and soil pressure can be calculated by the following formula: P soil =ρ soil ·g·h soil Among them, P soil is the soil and water pressure, ρ soil is the soil density, h soil is the soil layer thickness.

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