Intelligent construction method of mechanical bored cast-in-place piles

Abstract

The present invention provides an intelligent construction method for mechanical bored piles; the mechanical bored pile foundation comprises: a first step, before the drilling rig is in place, selecting a suitable drill bit, checking whether the displays of various instruments are normal, completing the depth reset of the pile driver, the drill rod should be kept vertical and stable, the center point of the drill bit coincides with the pile position, and the axis of the drill rod coincides with the center line of the pile position; after centering, the walking system is locked; a second step, rotary drilling is performed to form a hole, the rotary drilling bit squeezes and rotates to cut into the soil, so that the debris is directly loaded into the drill bit, and then the drilling rig lifting device and the telescopic drill rod are used to lift the soil out of the hole and unload it, and the cycle is repeated, and the soil is continuously taken and unloaded until the designed depth is drilled; a third step, the entire process of drilling is remotely managed by a cloud remote monitoring system; a fourth step, during the operation of the drilling machine, the infrared anti-collision system is turned on to provide a safety warning for the entire construction process; the invention solves the problem of poor comprehensive management level of pile foundation construction during the construction of large buildings.

Description

Technical Field

[0001] The present invention relates to the technical field of building foundation construction, in particular to an intelligent construction method for mechanically bored cast-in-place piles. Background Art

[0002] Engineering piles refer to foundation columns, which are generally required to bear the load from the upper area of ​​the building together with the cap. Engineering piles are mainly used to bear vertical loads. Support piles refer to piles built around the foundation pit to resist soil or water during excavation. Support piles are mainly used to bear lateral thrust and are often used in construction projects such as foundation pit support and landslide control.

[0003] During the construction of large buildings, a large number of support piles and engineering piles are required, and a large number of engineering equipment are required for simultaneous construction on site, making collisions prone to occur during the movement of engineering machinery and equipment. The pile foundation project is large in scale, and the workload of pile length verification is large. The construction site environment is complex, and construction site management is difficult. The amount of pile foundation monitoring data is large, and the task of pile foundation quality inspection is arduous. The comprehensive management level of pile foundation construction during the construction of large buildings is relatively poor. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides an intelligent construction method for mechanically bored cast-in-place piles, which solves the problem of poor comprehensive management level of pile foundation construction during the construction of large buildings.

[0005] According to an embodiment of the present invention, an intelligent construction method for mechanical bored piles includes the following steps: S1 construction preparation; S2 measurement and layout; S2 steel cage production and acceptance; S3 mechanical drilling of pile foundations; S4 pile hole quality acceptance; S5 hanging and placing steel cages; S6 concrete pouring of piles; S7 pile foundation inspection after the piles reach the age;

[0006] The mechanical drilling of S3 pile foundation includes the following steps: First, when the drilling rig is in place, select the appropriate drill bit, check whether the display of each instrument is normal, complete the pile driver depth reset, the drill rod should be kept vertical and stable, and the center point of the drill bit should be aligned with the pile position, and the axis of the drill rod should be aligned with the center line of the pile position; after alignment, lock the travel system;

[0007] The second step is to drill a hole by rotary drilling. The hydraulic motor on the rotary drilling rod presses down and uses torque to rotate, so that the rotary drilling bit squeezes and rotates to cut into the soil, so that the debris is directly loaded into the drill bit. Then, the drilling rig lifting device and telescopic drill rod are used to lift the soil out of the hole and unload it. This cycle is repeated, and the soil is continuously taken out and unloaded until the designed depth is reached.

[0008] The third step is to remotely manage the entire drilling process using a cloud remote monitoring system;

[0009] The fourth step is to turn on the infrared anti-collision system during the operation of the hole-drilling machinery to provide safety warnings for the entire construction process.

[0010] Compared with the existing technology, the present invention has the following beneficial effects: by developing and applying the cloud remote monitoring system of the rotary drilling rig, the pile foundation drilling construction data can be automatically recorded, wirelessly transmitted, early warning analysis, and remotely controlled, thereby reducing the workload of on-site management and the input of construction personnel; by applying the anti-collision system of the drilling machinery, an anti-collision early warning system is added to the drilling machinery, thereby avoiding mechanical collisions or accidents involving people during the operation, and significantly improving the safety of the drilling operation; significantly improving the comprehensive management level of pile foundation construction; and solving the problem of poor comprehensive management level of pile foundation construction during the construction of large buildings.

[0011] Preferably, the third step specifically includes: when the drilling operation begins on site A1, logging into the cloud remote monitoring system for the construction equipment, a data collector installed on the drilling equipment collects construction data, and wirelessly transmits the construction data to the data center; at the same time, real-time data of the pile foundation drilling can be received on a computer or mobile phone terminal, thereby realizing real-time remote monitoring of the construction status;

[0012] Before the A2 construction machine performs drilling operations, the drilling depth is preset. When the preset depth is reached or exceeded, an alarm prompt will appear on the user terminal display interface to prevent the construction from exceeding the depth.

[0013] The A3 system automatically analyzes construction parameters and outputs analysis results: it analyzes data such as drilling depth, single footage, and drilling time, displays real-time drilling rate, and outputs drilling rate curves to determine whether there are abnormalities in the underground soil layer; it analyzes the coordinates and position of the drill rod and outputs the drill rod verticality to remind operators to adjust the equipment in time to ensure the verticality of the pile foundation;

[0014] A4 construction data is automatically saved and exported through user-operated software.

[0015] The advantages of adopting the above technical solution are: construction data is transmitted in real time, construction personnel can grasp the on-site situation in a timely manner, which is beneficial to on-site management of construction personnel; construction data is automatically saved and exported through user-operated software, which is convenient for forming construction log data for subsequent inspection.

[0016] Preferably, S4 pile hole quality acceptance includes: B1 using a downhole camera to shoot and check the hole quality and bottom sediment; specifically, turning on the downhole camera and lowering it from the hole mouth in sequence, turning on the display screen to monitor the hole wall formation, and focusing on shooting if there is any abnormality; reaching the bottom of the hole, taking vertical shots to observe the water accumulation in the hole and the bottom sediment; calculating the hole depth according to the camera lowering depth;

[0017] B1 For locally ultra-deep pile foundations, use pile length verification software to verify the rigid angle and make adjustments. Specifically, import the pile length and relative coordinate data to be verified into the verification software, select the mutually influencing pile foundation range, click Rigid Angle Compensation Verification to perform the calculation, and output the verification results. If the pile length in this area does not meet the rigid angle requirements, the pile foundation that needs to be adjusted and the adjustment value will be output at the same time.

[0018] The advantages of adopting the above technical solution are: through the independently developed pile length rigid angle verification software, the software is used to replace manual calculation in the pile group length verification, thereby improving the calculation speed and the work efficiency of management personnel, and ensuring the accuracy and timeliness of the calculation; in addition, the software uses a network database to facilitate remote data sharing;

[0019] By adopting downhole camera equipment, video display and image recording of the drilling effect and the thickness of the sediment at the bottom of the hole are achieved, ensuring the fast, accurate and traceable inspection of the drilling quality and improving the comprehensive management level.

[0020] Preferably, the pile length rigid angle verification software is a cyclic calculation software based on a network shared database. When used, it calculates whether the pile length meets the rigid angle conditions required by the design based on the input verification range and pile length information, identifies pile foundations that do not meet the requirements, and calculates the pile length adjustment value at the same time.

[0021] The advantages of adopting the above technical solution are: the software is used to replace manual calculation in the pile group length verification, which improves the calculation speed and the work efficiency of management personnel and ensures the accuracy and timeliness of the calculation; in addition, the software uses a network database to facilitate remote data sharing, without being restricted by terminal devices, applications or regions, and is convenient for remote data sharing, remote use and operation.

[0022] Preferably, the application of the infrared anti-collision system in the fourth step specifically includes: during construction operations, the system is turned on, and when a person or object appears within the rotation radius of the machine, the detector is triggered, and an alarm prompt appears in the cab where the driver is located, thereby improving the safety of machine operation and avoiding mechanical injuries on site.

[0023] The advantages of adopting the above technical solution are: when engineering equipment such as excavators or drilling rigs are working, their working radius is large; there is a large blind spot in the field of view, and the collision system can promptly remind the driver of the surrounding environment. The driver can be warned in advance and leave a margin for equipment operation.

[0024] Preferably, in the third step, the cloud remote monitoring system for pile foundation drilling equipment is to install hardware such as data acquisition and transmission equipment on the drilling rig, and develop matching system operating software for network data center and user end;

[0025] During pile foundation construction, data such as the single penetration depth of the drilling machine, cumulative drilling depth, single drilling time, drilling rate, drill rod verticality, rotary drilling machine engine oil pressure, and rotary drilling machine position coordinates can be automatically transmitted and saved to the network data, and can be read and downloaded by opening the software; at the same time, during the construction process, the on-site construction data can be read in real time on a computer or mobile phone terminal, the on-site construction status can be monitored, and early warning analysis and measures can be taken according to the data situation.

[0026] The advantages of adopting the above technical solution are: the construction data of the drilling machinery is collected and summarized through the cloud remote monitoring system, which facilitates remote construction management, optimizes data recording and organization, accurately measures the thickness of the bottom hole sediment, avoids mechanical collisions, and improves the comprehensive management level of pile foundation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of the infrared anti-collision system in the intelligent construction method of mechanically bored cast-in-place piles according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] The intelligent construction method of mechanical bored piles includes the following steps: S1 construction preparation; S2 measurement and layout; S2 steel cage production and acceptance; S3 mechanical pile foundation drilling; S4 pile hole quality acceptance; S5 hanging steel cage; S6 concrete pouring piles; S7 pile foundation inspection after the pile reaches the age;

[0031] S1 construction preparation involves selecting pile foundation drilling equipment, drilling methods, and reinforcement cage fabrication methods based on design drawings, geological and hydrological conditions, and construction quality control requirements; organizing the preparation of special construction plans and intelligent technology application plans, and conducting detailed briefings; and implementing the software and hardware equipment for various intelligent technologies based on the intelligent technology application plans before construction.

[0032] The S2 survey and layout process involves driving marked wooden stakes or steel nails into the ground to calibrate the center of the pile hole. The center deviation must not exceed 10mm. A positioning reference stake is then set. Four control stakes are placed using crosshairs according to the pile positioning points. These four control stakes serve as a reference for controlling the placement of the casing and the accurate positioning of the drilling rig.

[0033] The mechanical drilling of S3 pile foundation includes the following steps: First, when the drilling rig is in place, select the appropriate drill bit, check whether the display of each instrument is normal, complete the pile driver depth reset, the drill rod should be kept vertical and stable, and the center point of the drill bit should be aligned with the pile position, and the axis of the drill rod should be aligned with the center line of the pile position; after alignment, lock the travel system;

[0034] The second step is to drill a hole by rotary drilling. The hydraulic motor on the rotary drilling rod presses down and uses torque to rotate, so that the rotary drilling bit squeezes and rotates to cut into the soil, so that the debris is directly loaded into the drill bit. Then, the drilling rig lifting device and telescopic drill rod are used to lift the soil out of the hole and unload it. This cycle is repeated, and the soil is continuously taken out and unloaded until the designed depth is reached.

[0035] The third step is to remotely manage the entire drilling process using a cloud remote monitoring system;

[0036] The fourth step is to turn on the infrared anti-collision system during the operation of the hole-drilling machinery to provide safety warnings for the entire construction process.

[0037] Compared with the existing technology, the present invention has the following beneficial effects: by developing and applying the cloud remote monitoring system of the rotary drilling rig, the pile foundation drilling construction data can be automatically recorded, wirelessly transmitted, early warning analysis, and remotely controlled, thereby reducing the workload of on-site management and the input of construction personnel; by applying the anti-collision system of the drilling machinery, an anti-collision early warning system is added to the drilling machinery, thereby avoiding mechanical collisions or accidents involving people during the operation, and significantly improving the safety of the drilling operation; significantly improving the comprehensive management level of pile foundation construction; and solving the problem of poor comprehensive management level of pile foundation construction during the construction of large buildings.

[0038] The third step specifically includes: When drilling operations begin on site A1, users log in to the cloud-based remote monitoring system for construction equipment. The data collector installed on the drilling equipment collects construction data and wirelessly transmits it to the data center. Simultaneously, real-time data on pile drilling can be received on computers or mobile phones, enabling real-time remote monitoring of the construction status.

[0039] Before the A2 construction machine performs drilling operations, the drilling depth is preset. When the preset depth is reached or exceeded, an alarm prompt will appear on the user terminal display interface to prevent the construction from exceeding the depth.

[0040] The A3 system automatically analyzes construction parameters and outputs analysis results: it analyzes data such as drilling depth, single footage, and drilling time, displays real-time drilling rate, and outputs drilling rate curves to determine whether there are abnormalities in the underground soil layer; it analyzes the coordinates and position of the drill rod and outputs the drill rod verticality to remind operators to adjust the equipment in time to ensure the verticality of the pile foundation;

[0041] A4 construction data is automatically saved and exported through user-operated software.

[0042] The advantages of adopting the above technical solution are: construction data is transmitted in real time, construction personnel can grasp the on-site situation in a timely manner, which is beneficial to on-site management of construction personnel; construction data is automatically saved and exported through user-operated software, which is convenient for forming construction log data for subsequent inspection.

[0043] S4 pile hole quality acceptance includes: B1 using a downhole camera to check the hole quality and bottom sediment; downhole photography uses a downhole camera equipped with a light source and infrared rays and an image display to check the hole quality, bottom water level, bottom sediment and hole depth. The camera enters the pile hole and displays the hole wall shape, water depth and sediment thickness in real time. In case of abnormal geological conditions or conditions inside the hole, the camera is turned on to record clearly and retain the original on-site image data;

[0044] Specifically, the downhole camera is lowered from the hole mouth in sequence, and the display screen is turned on to monitor the hole wall formation. If there is any abnormality, focus on shooting; when it reaches the bottom of the hole, vertical shooting is carried out to observe the water accumulation in the hole and the sediment at the bottom of the hole; the hole depth is calculated according to the depth of the camera lowering;

[0045] B1 For locally ultra-deep pile foundations, use pile length verification software to verify the rigid angle and make adjustments. Specifically, import the pile length and relative coordinate data to be verified into the verification software, select the mutually influencing pile foundation range, click Rigid Angle Compensation Verification to perform the calculation, and output the verification results. If the pile length in this area does not meet the rigid angle requirements, the pile foundation that needs to be adjusted and the adjustment value will be output at the same time.

[0046] The advantages of adopting the above technical solution are: through the independently developed pile length rigid angle verification software, the software is used to replace manual calculation in the pile group length verification, thereby improving the calculation speed and the work efficiency of management personnel, and ensuring the accuracy and timeliness of the calculation; in addition, the software uses a network database to facilitate remote data sharing;

[0047] By adopting downhole camera equipment, video display and image recording of the drilling effect and the thickness of the sediment at the bottom of the hole are achieved, ensuring the fast, accurate and traceable inspection of the drilling quality and improving the comprehensive management level.

[0048] The pile length rigidity angle verification software is a cyclic calculation software based on a network shared database. When used, it calculates whether the pile length meets the rigidity angle conditions required by the design based on the input verification range and pile length information, identifies pile foundations that do not meet the requirements, and calculates the pile length adjustment value at the same time.

[0049] The advantages of adopting the above technical solution are: the software is used to replace manual calculation in the pile group length verification, which improves the calculation speed and the work efficiency of management personnel and ensures the accuracy and timeliness of the calculation; in addition, the software uses a network database to facilitate remote data sharing, without being restricted by terminal devices, applications or regions, and is convenient for remote data sharing, remote use and operation.

[0050] The fourth step is to apply the infrared anti-collision system specifically including: during construction operations, the system is turned on. If a person or object appears within the rotation radius of the machine, the detector will be triggered and an alarm will appear in the cab where the driver is located, thereby improving the safety of machine operation and avoiding mechanical damage on site.

[0051] The advantages of adopting the above technical solution are: when engineering equipment such as excavators or drilling rigs are working, their working radius is large; there is a large blind spot in the field of view, and the collision system can promptly remind the driver of the surrounding environment. The driver can be warned in advance and leave a margin for equipment operation.

[0052] In the third step, the cloud remote monitoring system for pile foundation drilling equipment is to install hardware such as data acquisition and transmission equipment on the drilling rig, and develop matching system operating software for network data center and user end;

[0053] During pile foundation construction, data such as the single penetration depth of the drilling machine, cumulative drilling depth, single drilling time, drilling rate, drill rod verticality, rotary drilling machine engine oil pressure, and rotary drilling machine position coordinates can be automatically transmitted and saved to the network data, and can be read and downloaded by opening the software; at the same time, during the construction process, the on-site construction data can be read in real time on a computer or mobile phone terminal, the on-site construction status can be monitored, and early warning analysis and measures can be taken according to the data situation.

[0054] The advantages of adopting the above technical solution are: the construction data of the drilling machinery is collected and summarized through the cloud remote monitoring system, which facilitates remote construction management, optimizes data recording and organization, accurately measures the thickness of the bottom hole sediment, avoids mechanical collisions, and improves the comprehensive management level of pile foundation construction.

[0055] Quality control during the actual application of the intelligent construction method of mechanical bored piles:

[0056] 1. When calculating the influence of pile length using rigid angle software, first verify the accuracy of the imported pile length and pile position coordinate data to avoid miscalculations caused by errors in the original data. After verifying the pile length, the adjustment value of the pile foundation that needs to be adjusted must be rechecked;

[0057] 2. Wireless transmission of drilling data must first ensure that the data acquisition equipment, transmission system and related software are working properly. Before work, the basic information of the pile foundation must be preset to ensure the accuracy of the data. If any abnormalities are found in the data transmitted during the construction process, they must be analyzed and handled in a timely manner;

[0058] 3. Use the downhole camera to check the water level at the bottom of the hole and the quality of the hole. Control the shooting mode and direction according to the soil and water level in the hole, and check and screen the captured image data in time to ensure that the hole conditions can be clearly and completely displayed, and capture the image inside the hole to form first-hand image data.

[0059] 4. Determine whether the sediment at the bottom of the hole meets the specification requirements (less than 50mm) based on the hole bottom picture. If the sediment exceeds the limit, clean the hole in time.

[0060] 5. During operation, we must first ensure the coordinated application of technical means, and secondly, make necessary analysis and judgment on the work results replaced by intelligent means to avoid misjudgment.

[0061] For example, the T1 terminal project at Chengdu Tianfu International Airport utilizes machine-drilled, cast-in-place piles for its foundations. The project's importance is rated Level 1, with a design service life of 50 years. Its seismic fortification category is Class B (key fortification), with a seismic fortification intensity of 7 and a design earthquake group of Group 3. Pile diameters range from 1.0m, 1.2m, 1.5m, 1.8m, and 2.0m, with lengths ranging from 4 to 24m. End-bearing piles are used, and if wet pile construction is employed, post-grouting at the bottom of the pile is used to increase the pile's bearing capacity. HRB400 grade steel bars are used for the longitudinal reinforcement, spiral stirrups, and stiffening stirrups, and the concrete strength grade is C30 or underwater C30. The pile foundations consist of moderately weathered mudstone and moderately weathered sandy mudstone as the bearing layers, with standard values ​​for the natural uniaxial compressive strength (frk) of 2.5 and 6.0 MPa, respectively.

[0062] During the pile foundation construction process, the application of this method can achieve comprehensive optimization of quality, safety and progress, reduce costs and save construction time.

[0063] Economic benefits

[0064] This project has a total of 5,055 piles, with a planned construction period of 12 months. The economic benefits generated by applying this method during the pile foundation construction phase are calculated as follows:

[0065] Save construction time

[0066] The application of this method greatly reduces the construction interruption time and low-load operation time of the drilling machinery, and improves the utilization rate of the shift. According to the on-site construction situation, the average pile length is 15m and the average pile diameter is 1.5m. Each pile can save 30min of construction time compared with traditional construction, which can save construction period:

[0067] 0.5(h)×5055÷24(h / day)=105 days.

[0068] Save management costs

[0069] The daily on-site management fee is RMB 900 / day, which saves 105 days of construction time and generates economic benefits:

[0070] 900 (yuan / day) × 105 (days) = 94,500 yuan;

[0071] During the construction process, the application of this method significantly improved the work efficiency of on-site management personnel and reduced the number of on-site front-line staff and record-keeping personnel. Reducing the number of management personnel by 3 can save management personnel wages:

[0072] 7,000 (yuan / person / month) × 3 (persons) × 12 (months) = 252,000 yuan;

[0073] The management cost saved is: 94,500 (yuan) + 252,000 (yuan) = 346,500 yuan.

[0074] Save material costs

[0075] Intelligent technology is used to precisely control the depth of pile foundation holes, reduce over-excavation, and conserve concrete materials. The pile diameters for this project range from 1m to 2.5m, with an average diameter of 1.5m. The average over-excavation reduction for each pile is calculated as 0.2m. The pile foundations use C30 underwater concrete, and the material price plus pouring labor costs is calculated at 600 yuan / m3. This results in cost savings:

[0076] (1.5(m)÷2)2×3.14×0.2(m)×5055×600(yuan / m3)=1,071,407 yuan.

[0077] Save machine hours and fuel costs

[0078] The cost of rotary drilling rigs and loaders used to transport pile core soil is calculated at RMB 1,600 per shift, which can save costs:

[0079] 105×3×1600 (yuan / shift) = 504,000 yuan.

[0080] Comprehensive benefits

[0081] In summary, the total construction time saved is 105 days, and the total cost saved is:

[0082] 346500+1071407+504000=1.9219 million yuan.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Intelligent construction method of mechanical bored cast-in-place piles, characterized by: The following steps are involved: S1 Construction preparation; S2 Surveying and setting out; S2 Fabrication and acceptance of reinforcement cage; S3 Mechanical drilling of pile foundation; S4 Quality acceptance of pile hole; S5 Lifting and placing reinforcement cage; S6 Concrete pouring of piles; S7 Pile foundation inspection after piles reach the required age. The mechanical drilling process for S3 pile foundation includes the following steps: First, when the drilling rig is in place, select a suitable drill bit, check whether the display of each instrument is normal, complete the pile driver depth reset, keep the drill rod vertical and stable, and ensure that the center point of the drill bit coincides with the pile position, and the axis of the drill rod coincides with the center line of the pile position; after centering, lock the travel system; The second step is to drill a hole by rotary drilling. The hydraulic motor on the rotary drilling rod presses down and uses torque to rotate, so that the rotary drilling bit squeezes and rotates to cut into the soil, so that the debris is directly loaded into the drill bit. Then, the drilling rig lifting device and telescopic drill rod are used to lift the soil out of the hole and unload it. This cycle is repeated, and the soil is continuously taken out and unloaded until the designed depth is reached. The third step is to remotely manage the entire drilling process using a cloud-based remote monitoring system. This step specifically involves logging into the cloud-based remote monitoring system for construction equipment when drilling operations begin on site A1. The data collector installed on the drilling equipment collects construction data and wirelessly transmits it to the data center. Simultaneously, real-time data on pile drilling can be received on computers or mobile phones, enabling real-time remote monitoring of the construction status. Before the A2 construction machine performs drilling operations, the drilling depth is preset. When the preset depth is reached or exceeded, an alarm prompt will appear on the user terminal display interface to prevent the construction from exceeding the depth. The A3 system automatically analyzes construction parameters and outputs analysis results: it analyzes data such as drilling depth, single footage, and drilling time, displays real-time drilling rate, and outputs drilling rate curves to determine whether there are abnormalities in the underground soil layer; it analyzes the coordinates and position of the drill rod and outputs the drill rod verticality to remind operators to adjust the equipment in time to ensure the verticality of the pile foundation; A4 construction data is automatically saved and exported through user-operated software; The fourth step is to activate the infrared anti-collision system during the drilling machine operation to provide safety warnings throughout the construction process. The specific application of the infrared anti-collision system includes: when the system is turned on during construction, if a person or object appears within the machine's rotation radius, the detector will be triggered, and an alarm will be prompted in the driver's cab, thereby improving the safety of machine operation and preventing mechanical injuries on site. Among them, S4 pile hole quality acceptance includes: B1 using downhole cameras to check the hole quality and bottom sediment; specifically, the downhole cameras are lowered from the hole mouth in sequence, and the display screen is turned on to monitor the hole wall formation. If there is any abnormality, focus on shooting; when reaching the bottom of the hole, vertical shooting is carried out to observe the water accumulation in the hole and the bottom sediment; the hole depth is calculated based on the depth of the camera lowering; B2 For local ultra-deep pile foundations, use pile length verification software to verify the rigid angle and make adjustments. Specifically, import the pile length and relative coordinate data to be verified into the verification software, select the pile foundation range that affects each other, click Rigid Angle Compensation Verification to perform calculations, and output the verification results. If the pile length in this area does not meet the rigid angle requirements, the pile foundation that needs to be adjusted and the adjustment value will be output at the same time.

2. The intelligent construction method of mechanically bored cast-in-place piles according to claim 1, characterized in that: The pile length rigidity angle verification software is a cyclic calculation software based on a network shared database. When used, it calculates whether the pile length meets the rigidity angle conditions required by the design based on the input verification range and pile length information, identifies pile foundations that do not meet the requirements, and calculates the pile length adjustment value at the same time.

3. The intelligent construction method of mechanically bored cast-in-place piles according to claim 1, characterized in that: In the third step, the cloud remote monitoring system for pile foundation drilling equipment is to install hardware such as data acquisition and transmission equipment on the drilling rig, and develop matching system operating software for network data center and user end; During pile foundation construction, data such as the single penetration depth of the drilling machine, cumulative drilling depth, single drilling time, drilling rate, drill rod verticality, rotary drilling machine engine oil pressure, and rotary drilling machine position coordinates can be automatically transmitted and saved to the network data, and can be read and downloaded by opening the software; at the same time, during the construction process, the on-site construction data can be read in real time on a computer or mobile phone terminal, the on-site construction status can be monitored, and early warning analysis and measures can be taken according to the data situation.

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