Hole-forming method for pile foundation of hot-melting slump slope accumulation body

Abstract

The invention relates to the technical field of engineering construction, and particularly discloses a hot-melt slump slope product pile foundation hole-forming method, which adopts a rotary drill full-casing follow-up or full-rotation full-casing follow-up hole-forming process, and is combined with parameter monitoring and analysis in the drilling and grouting process to ensure the hole-forming quality. Specifically, firstly, the drilling stability score is calculated through drilling parameters, and the drilling stability is evaluated; secondly, the grouting stability score is calculated according to the permeability coefficient obtained in the grouting process, and the grouting stability is evaluated; performing correlation analysis on the drilling stability score and the grouting stability score to determine the influence degree of the drilling stability score and the grouting stability score on the punching quality; further, the drilling stability score and the grouting stability score are comprehensively considered, and the punching abnormity score is calculated by utilizing a preset scale factor, so that whether the overall quality of the pile foundation punching is qualified or not is judged; and if the punching abnormal score exceeds the preset threshold value, the drilling and grouting processes need to be correspondingly adjusted until the punching quality reaches the standard.

Description

Technical Field

[0001] The invention relates to the technical field of engineering construction, and in particular to a hot-melt landslide slope accumulation body pile foundation hole forming method. Background Art

[0002] Pile foundation is an important method of foundation reinforcement and is widely used in the construction industry. Especially in areas with complex geological conditions and low bearing capacity, the application of pile foundation can significantly improve the stability and safety of buildings. Thermal melt landslide slope accumulation is a special geological structure characterized by deformation and flow of soil and rock under high temperature, forming an unstable geological environment. Pile foundation construction under such conditions faces many challenges, such as hole wall collapse, drilling deviation, uneven grouting diffusion and other problems.

[0003] When drilling in a hot melt landslide slope, the hole wall is prone to collapse and the verticality of the drill hole is difficult to control, which will affect the stability of the pile foundation; the existing drilling technology often makes it difficult to accurately evaluate the stability during the drilling process; grouting is one of the key steps in pile foundation construction, but there is currently a lack of effective means to monitor the diffusion and solidification effect of the slurry in the pores, which is directly related to the ultimate bearing capacity of the pile foundation; the large amount of data generated during the construction process has not been effectively utilized, making it difficult to conduct accurate quality control and optimization improvements, resulting in frequent quality inspections and corrections during the construction process, which is not only time-consuming but also increases costs.

[0004] The present invention realizes effective evaluation of drilling stability and grouting effect by real-time monitoring of key parameters in the drilling and grouting processes and combining data processing and analysis methods, thereby ensuring the quality and stability of the pile foundation. Summary of the invention

[0005] The purpose of the present invention is to provide a method for drilling a pile foundation in a hot melt landslide slope accumulation body. First, a rotary drilling full casing follow-up drilling or a full rotation full casing follow-up drilling construction process is used to drill a predetermined area; then, the key parameters in the drilling process such as drilling depth, diameter and verticality are obtained and processed by laser measurement technology, so as to calculate the drilling stability score and evaluate the drilling stability; then, for the grouting stage, the grouting permeability coefficient is calculated according to Darcy's law, so as to obtain the grouting stability score to evaluate the grouting effect; then, the relationship between the drilling stability score and the grouting stability score is analyzed through correlation to determine whether the two have a significant correlation; finally, based on the above scores and their mutual influence relationship, a comprehensive judgment is made as to whether the overall quality of the pile foundation punching meets the engineering standards to solve the problems in the above background.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A method for forming a hole in a hot melt landslide slope pile foundation comprises the following steps:

[0008] S1: Drill holes in the construction area by using the rotary drilling full casing follow-up hole formation or full rotation full casing follow-up hole formation construction method;

[0009] S2: obtaining drilling parameters during the punching process, and processing the drilling parameters to obtain a drilling stability score; comparing the drilling stability score with a drilling stability score threshold to evaluate drilling stability;

[0010] Among them, drilling parameters include drilling depth, drilling diameter and drilling verticality.

[0011] S3: obtaining the grouting permeability coefficient during the grouting process, processing the grouting permeability coefficient to obtain a grouting stability score, comparing the grouting stability score with a grouting stability score threshold, and evaluating the grouting stability;

[0012] S4: Since the drilling stability score and the grouting stability score will jointly affect the quality of punching, a correlation analysis is conducted on the drilling stability score and the grouting stability score;

[0013] S5: Based on the influence relationship between the drilling stability score and the grouting stability score, judge whether the quality of pile foundation punching is qualified.

[0014] As a further solution of the present invention: In S2, the process of obtaining the drilling stability score is:

[0015] The borehole stability score is calculated;

[0016] As a further solution of the present invention: the process of obtaining the normalized score Ai of the drilling depth is:

[0017] Divide the pile foundation into several identical areas and obtain the drilling depth Hij in each area;

[0018] Wherein, i represents the number of areas collected, i=1, 2, ..., n; j represents the number of boreholes in each area, j=1, 2, ..., m;

[0019] Integrate all the drilling depths Hij in the same area to obtain a drilling depth group;

[0020] The maximum drilling depth and the minimum drilling depth in the drilling depth group are obtained, and the maximum drilling depth and the minimum drilling depth are calculated by difference calculation to obtain the drilling depth extreme value, and the average drilling depth in the drilling depth group is calculated by the mean calculation formula, and the drilling depth extreme value is calculated by ratio calculation to the average drilling depth to obtain the drilling depth standardized score Ai;

[0021] The process of obtaining the borehole diameter standardized score Bi and the borehole verticality standardized score Ci is the same as the process of obtaining the borehole depth standardized score Ai.

[0022] As a further solution of the present invention: In S2, the drilling stability assessment process:

[0023] If the drilling stability score Qi is greater than or equal to the drilling stability score threshold, a drilling instability signal is generated, otherwise a stable signal is generated.

[0024] As a further solution of the present invention: In S3, the process of obtaining the grouting permeability coefficient K is:

[0025] The calculation of grout permeability coefficient is usually based on Darcy's law, which describes the relationship between the velocity and pressure difference when the fluid passes through a porous medium;

[0026] The grouting permeability coefficient K is calculated.

[0027] As a further solution of the present invention: In S3, the grouting stability score acquisition process is:

[0028] Obtain the grouting permeability coefficient Ki j of the borehole in each area;

[0029] Ki j represents the grouting permeability coefficient of the jth borehole in the i-th region;

[0030] The grouting permeability coefficient Ki j of each area is integrated to obtain the grouting permeability coefficient group and the grouting stability score is calculated.

[0031] As a further solution of the present invention: In S3, the grouting stability evaluation process is:

[0032] If the grouting stability score Ri is greater than or equal to the preset grouting stability score threshold, a grouting instability signal is generated, otherwise a grouting stability signal is generated.

[0033] As a further solution of the present invention: In S4, the correlation coefficient analysis process is:

[0034] Obtain the drilling stability score Qi and grouting stability score Ri of each area;

[0035] Integrate the borehole stability scores Qi of all regions to obtain the borehole stability score group;

[0036] The correlation coefficient was calculated.

[0037] If the correlation coefficient r is greater than or equal to the preset correlation coefficient threshold, the quality of punching is jointly affected by the drilling stability score Qi and the grouting stability score Ri; otherwise, they are not jointly affected.

[0038] As a further solution of the present invention: in S5, if the punching abnormality score is greater than or equal to a preset punching abnormality score threshold, it means that the corresponding punching is abnormal, and a punching quality unqualified signal is generated, otherwise a punching quality qualified signal is generated.

[0039] As a further solution of the present invention: the process of obtaining the punching anomaly score is:

[0040] The drilling stability fraction factor MQ is calculated;

[0041] The grouting stability fraction factor MR is calculated;

[0042] The weight of the drilling stability score factor MQ is assigned to Wa, and the weight of the grouting stability score factor MR is assigned to Wb, and both Wa and Wb are greater than 0, Rmax and Rmin are the maximum grouting stability score and the minimum grouting stability score in the grouting stability score group, respectively, and βR is the standard deviation of the grouting stability score;

[0043] The punching anomaly score δ is calculated.

[0044] Beneficial effects of the present invention:

[0045] (1) By using the construction method of full casing follow-up drilling with rotary drilling or full rotation and full casing follow-up drilling with rotary drilling, the problem of hole wall collapse under complex geological conditions can be effectively avoided, ensuring the smooth progress of drilling. In addition, by accurately controlling key parameters such as drilling depth, diameter and verticality, and standardizing them into drilling stability scores, engineers can more intuitively evaluate the stability of the drilling process. This standardization process not only simplifies the decision-making process, but also makes it easier for on-site operators to quickly identify potential problem areas and take timely measures to make adjustments. For example, if the drilling stability score of a certain area exceeds the preset threshold, it indicates that the area may have insufficient drilling stability. At this time, the drilling process can be optimized by adjusting the drilling speed, changing the drill bit type or increasing the flushing fluid flow rate. This instant feedback mechanism greatly improves the flexibility and response speed of drilling operations, thereby reducing rework and delays caused by process instability and ensuring that the overall project progress is not affected.

[0046] (2) Through the precise measurement and standardization of the grouting permeability coefficient, the stability of the grouting process can be accurately evaluated, and the grouting stability score can be calculated accordingly; this not only helps to monitor the effectiveness of the grouting process, but also can judge the quality of the grouting by comparing the grouting stability score with the preset threshold; for example, if the grouting stability score of a certain area exceeds the preset threshold, it indicates that the area may have insufficient or excessive grouting problems, and corresponding measures need to be taken to adjust it. This method not only improves the controllability and accuracy of the grouting process, but also can effectively avoid problems such as decreased foundation bearing capacity due to uneven grouting; in addition, through strict inspection and maintenance of grouting equipment, as well as reasonable selection and deployment of slurry types, the present invention further enhances the consistency and reliability of the grouting process, ensuring that the effect of pile foundation reinforcement meets the expected goals.

[0047] (3) By calculating the correlation coefficient and comparing it with the preset threshold, it can be determined whether there is a significant correlation between the drilling stability score and the grouting stability score; if there is an obvious correlation, it means that these two factors jointly affect the quality of punching, and at this time, it is necessary to comprehensively consider the scores of the two to evaluate the overall state of the pile foundation; based on this, the present invention also introduces the concept of punching abnormality score, which comprehensively evaluates the stability of both drilling and grouting in a quantitative manner, and then determines whether the pile foundation punching is qualified; this method not only provides an objective evaluation standard, but also can guide subsequent adjustment measures, such as equipment calibration, material dosage adjustment, etc., to ensure that the quality of the entire pile foundation construction process is continuously optimized. Through such a comprehensive evaluation system, not only can the safety hazards caused by punching abnormalities be reduced, but also the overall quality and durability of the project can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] Figure 1 It is a flowchart of the specific steps of a hot melt landslide slope pile foundation hole forming method of the present invention;

[0050] Figure 2 is a flowchart of the drilling stability assessment process in the present invention;

[0051] Figure 3 It is a flowchart of the grouting stability evaluation process in the present invention. DETAILED DESCRIPTION

[0052] 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.

[0053] See also Figure 1 As shown, the present invention is a method for forming a hole for a pile foundation of a hot melt landslide slope accumulation body, comprising the following steps:

[0054] S1: Drill holes in the construction area by using the rotary drilling full casing follow-up hole formation or full rotation full casing follow-up hole formation construction method;

[0055] S2: obtaining drilling parameters during the punching process, and processing the drilling parameters to obtain a drilling stability score; comparing the drilling stability score with a drilling stability score threshold to evaluate drilling stability;

[0056] Among them, drilling parameters include drilling depth, drilling diameter and drilling verticality.

[0057] S3: obtaining the grouting permeability coefficient during the grouting process, processing the grouting permeability coefficient to obtain a grouting stability score, comparing the grouting stability score with a grouting stability score threshold, and evaluating the grouting stability;

[0058] S4: Since the drilling stability score and the grouting stability score will jointly affect the quality of punching, a correlation analysis is conducted on the drilling stability score and the grouting stability score;

[0059] S5: Based on the influence relationship between the drilling stability score and the grouting stability score, judge whether the quality of pile foundation punching is qualified.

[0060] Example 2

[0061] See also Figure 2 As shown, on the basis of Example 1, a construction area is selected, hidden dangers are checked in the construction area, machinery and materials are prepared, and the pile foundation is drilled by a rotary drilling full casing follow-up hole formation or a full rotation full casing follow-up hole formation construction method. Before drilling, the casing and drill rod are installed according to the design requirements, and the appropriate drill bit type is selected according to the geological conditions, and an appropriate amount of flushing fluid is injected to help remove drill cuttings and cool the drill bit; after the drilling is completed, cleaning work is carried out to ensure the cleanliness of the hole;

[0062] Divide the pile foundation into several identical areas to ensure the same processing flow and environment. Use laser measurement technology to collect drilling parameters in each area. Before measurement, calibrate the measuring instrument to ensure the accuracy of the collected data.

[0063] Among them, the drilling parameters include drilling depth, drilling diameter and drilling verticality;

[0064] Get the drilling depth Hij in each area;

[0065] Wherein, i represents the number of areas collected, i=1, 2, ..., n; j represents the number of boreholes in each area, j=1, 2, ..., m;

[0066] Integrate all the drilling depths Hij in the same area to obtain a drilling depth group;

[0067] The maximum drilling depth and the minimum drilling depth in the drilling depth group are obtained, and the maximum drilling depth and the minimum drilling depth are calculated by difference calculation to obtain the drilling depth extreme value, and the average drilling depth in the drilling depth group is calculated by the mean calculation formula, and the drilling depth extreme value is calculated by ratio calculation to the average drilling depth to obtain the drilling depth standardized score Ai;

[0068] Get the drilling diameter Dij in each area;

[0069] Integrate all the borehole diameters Dij in the same area to obtain a borehole diameter group;

[0070] The maximum and minimum borehole diameters in the borehole diameter group are obtained, and the borehole diameter range value is obtained by performing difference calculation on the maximum and minimum borehole diameters. The average borehole diameter in the borehole diameter group is calculated by using the mean calculation formula, and the borehole diameter range value is calculated by ratio calculation on the average borehole diameter to obtain the borehole diameter standardized score Bi;

[0071] Obtain the borehole verticality E ij in each area;

[0072] Integrate all borehole verticalities E ij in the same area to obtain a borehole verticality group;

[0073] The maximum and minimum borehole verticality in the borehole verticality group are obtained, and the borehole verticality extreme value is obtained by performing difference calculation on the maximum and minimum borehole verticality. The average borehole verticality in the borehole verticality group is calculated by the mean calculation formula, and the borehole verticality extreme value is calculated by ratio calculation with the average borehole verticality to obtain the borehole verticality standardized score Ci;

[0074] The weight of the borehole depth standardization score Ai is assigned to W1, the weight of the borehole diameter standardization score Bi is assigned to W2, and the weight of the borehole verticality standardization score Ci is assigned to W3, and W1, W2 and W3 are all greater than 0;

[0075] The drilling stability score Qi is calculated by the formula Qi=Ai*W1+Bi*W2+Ci*W3;

[0076] Compare the borehole stability score Qi with the borehole stability score threshold;

[0077] If the drilling stability score Qi is greater than or equal to the drilling stability score threshold, it means that the drilling process stability of the corresponding area is poor, and a drilling instability signal is generated;

[0078] If the drilling stability score Qi is less than the drilling stability score threshold, it means that the drilling process stability of the corresponding area is good, and a drilling stability signal is generated;

[0079] It should be noted that the drilling stability of the area is determined by the stability of the drilling process. The more stable the drilling process is, the better the drilling quality will be.

[0080] Example 3

[0081] See also Figure 3 As shown, on the basis of Example 2, a grouting scheme is formulated according to geological conditions and design requirements; a suitable slurry type is selected and the slurry is prepared according to the design requirements; the grouting equipment is ensured to be in good condition, including a grouting pump, a grouting pipe, and a stirrer; punching grouting is performed; after the grouting is completed, the grouting permeability coefficient Ki is obtained, and the grouting stability fraction Ri is obtained by processing the grouting permeability coefficient;

[0082] Specific:

[0083] The calculation of grout permeability coefficient is usually based on Darcy's law, which describes the relationship between the velocity and pressure difference when the fluid passes through a porous medium;

[0084] By formula The grouting permeability coefficient K is calculated;

[0085] Where S is the fluid flow rate through the punch hole, L is the length of the punch hole, F is the cross-sectional area through which the fluid passes, and Δp is the pressure difference between the two ends;

[0086] It should be noted that in pile foundation construction, especially in grouting process, the measurement of permeability coefficient is very important because it affects the diffusion range and curing effect of the slurry; if the permeability coefficient of the medium around the punching hole is high, the slurry may spread quickly and cover a larger area, but if the permeability coefficient is low, more slurry is required to achieve the same reinforcement effect.

[0087] Obtain the grouting permeability coefficient Ki j of the borehole in each area;

[0088] Ki j represents the grouting permeability coefficient of the jth borehole in the i-th region;

[0089] The grouting permeability coefficient Ki j of each area is integrated to obtain the grouting permeability coefficient group;

[0090] The average grout permeability coefficient Ki y of the grouting permeability coefficient group is obtained through the mean calculation formula;

[0091] The standard deviation value αi of the grouting permeability coefficient group is obtained through the standard deviation calculation formula;

[0092] By formula The grouting stability fraction Ri is calculated;

[0093] Among them, b1 and b2 are preset proportional coefficients, which are set by the staff's experience, and both b1 and b2 are greater than 0;

[0094] Compare the grouting stability score Ri with a preset grouting stability score threshold;

[0095] If the grouting stability score Ri is greater than or equal to the preset grouting stability score threshold, it means that the grouting effect of the corresponding area is poor, and a grouting instability signal is generated;

[0096] If the grouting stability score Ri is less than the preset grouting stability score threshold, it means that the grouting effect of the corresponding area is good, and a grouting stability signal is generated;

[0097] It should be noted that in the grouting process, the larger the grouting stability score, the worse the grouting quality and the worse the pore stability.

[0098] Example 4

[0099] On the basis of Example 2 and Example 3, since the drilling stability fraction Qi and the grouting stability fraction Ri will jointly affect the quality of punching, a correlation analysis is performed on the drilling stability fraction Qi and the grouting stability fraction Ri;

[0100] Specific:

[0101] Obtain the drilling stability score Qi and grouting stability score Ri of each area;

[0102] Integrate the borehole stability scores Qi of all regions to obtain the borehole stability score group;

[0103] The average borehole stability score Qy in the borehole stability score group is obtained through the mean calculation formula;

[0104] Integrate the grouting stability scores Ri of all regions to obtain the grouting stability score array;

[0105] The average grout stability score Ry in the grouting stability score group is obtained through the mean calculation formula;

[0106] By formula The correlation coefficient r was calculated;

[0107] Compare the correlation coefficient r with a preset correlation coefficient threshold;

[0108] If the correlation coefficient r is greater than or equal to the preset correlation coefficient threshold, it means that there is an influence relationship between the drilling stability score Qi and the grouting stability score Ri, and the quality of the punching is jointly affected by the drilling stability score Qi and the grouting stability score Ri;

[0109] If the correlation coefficient r is less than the preset correlation coefficient threshold, it means that there is no influence relationship between the drilling stability score Qi and the grouting stability score Ri, and the quality of punching is affected by the drilling stability score Qi and the grouting stability score Ri respectively.

[0110] Example 5

[0111] On the basis of Example 4, based on the influence relationship between the drilling stability score Qi and the grouting stability score Ri, it is judged whether the quality of the pile foundation punching is qualified;

[0112] Specific:

[0113] Obtain the maximum drilling stability score Qmax and the minimum drilling stability score Qmin in the drilling stability score group;

[0114] The standard deviation of the borehole stability score group is calculated to obtain the standard deviation value βQ of the borehole stability score group;

[0115] By formula The drilling stability fraction factor MQ is calculated;

[0116] Where b3 and b4 are preset proportional factors, which are set by staff experience, and both b3 and b4 are greater than 0;

[0117] Get the maximum grouting stability score Rmax and the minimum grouting stability score Rmin in the grouting stability score group

[0118] The standard deviation of the grouting stability score group is calculated to obtain the standard deviation value βR of the grouting stability score;

[0119] By formula The grouting stability fraction factor MR is calculated;

[0120] The weight of the drilling stability fraction factor MQ is assigned to Wa, and the weight of the grouting stability fraction factor MR is assigned to Wb, and both Wa and Wb are greater than 0;

[0121] The punching abnormality score δ is calculated by the formula δ = MQ*Wa + MR*Wb;

[0122] Compare the punching anomaly score δ with a preset punching anomaly score threshold;

[0123] If the punching anomaly score δ is greater than or equal to the preset punching anomaly score threshold, it means that the corresponding punching is abnormal, and a punching quality unqualified signal is generated;

[0124] If the punching anomaly score δ is less than the preset punching anomaly score threshold, it means that the corresponding punching is normal, and a punching quality qualified signal is generated;

[0125] Based on the signal of unqualified punching quality, the drilling process and grouting process are adjusted. If it is an equipment problem, the equipment is replaced or calibrated. If there is a problem in the grouting process, the material consumption and material quality in the grouting process are tested. After ensuring that there are no problems, the punching anomaly score δ is recalculated and compared with the punching anomaly score threshold to ensure timely regulation of punching anomalies.

[0126] The working principle of the present invention is as follows: First, a rotary drilling full casing follow-up hole forming or full rotation full casing follow-up hole forming construction process is used to drill a predetermined area; then, the key parameters in the drilling process such as drilling depth, diameter and verticality are obtained and processed by laser measurement technology, so as to calculate the drilling stability score and evaluate the drilling stability; then, for the grouting stage, the grouting permeability coefficient is calculated according to Darcy's law, so as to obtain the grouting stability score to evaluate the grouting effect; then, the relationship between the drilling stability score and the grouting stability score is analyzed through correlation analysis to determine whether the two have a significant correlation; finally, based on the above scores and their mutual influence relationship, a comprehensive judgment is made as to whether the overall quality of the pile foundation punching meets the engineering standards. In order to improve the evaluation accuracy, the scheme further refines the collection and processing methods of drilling parameters, and proposes a strategy for standardized processing using statistical indicators such as standard deviation and mean value, while taking into account the differences between different regions. In addition, the importance of accurate determination of the grouting permeability coefficient and reasonable threshold setting of the drilling stability and grouting stability scores in the evaluation process is also emphasized. When the punching quality is found to be unqualified, necessary adjustments will be made to the drilling process and grouting process according to the specific situation to ensure that the project quality meets the requirements.

[0127] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for forming a hole for a hot melt landslide slope pile foundation, characterized in that: The following steps are involved: S1: Drill holes in the construction area; S2: obtaining drilling parameters during the punching process, and processing the drilling parameters to obtain a drilling stability score; comparing the drilling stability score with a drilling stability score threshold to evaluate drilling stability; Among them, the drilling parameters include drilling depth, drilling diameter and drilling verticality; S3: obtaining the grouting permeability coefficient during the grouting process, processing the grouting permeability coefficient to obtain a grouting stability score, comparing the grouting stability score with a grouting stability score threshold, and evaluating the grouting stability; S4: Since the drilling stability score and the grouting stability score will jointly affect the quality of punching, a correlation analysis is conducted on the drilling stability score and the grouting stability score; S5: Based on the influence relationship between the drilling stability score and the grouting stability score, judge whether the quality of pile foundation punching is qualified.

2. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S2, the process of obtaining the drilling stability score is as follows: The drilling stability score is calculated.

3. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 2, characterized in that: The process of obtaining the standardized score Ai of drilling depth is as follows: Divide the pile foundation into several identical areas and obtain the drilling depth Hij in each area; Wherein, i represents the number of areas collected, i=1, 2, ..., n; j represents the number of boreholes in each area, j=1, 2, ..., m; Integrate all the drilling depths Hij in the same area to obtain a drilling depth group; The maximum drilling depth and the minimum drilling depth in the drilling depth group are obtained, and the maximum drilling depth and the minimum drilling depth are calculated by difference calculation to obtain the drilling depth extreme value, and the average drilling depth in the drilling depth group is calculated by the mean calculation formula, and the drilling depth extreme value is calculated by ratio calculation to the average drilling depth to obtain the drilling depth standardized score Ai; Among them, the process of obtaining the borehole diameter standardized score Bi and the borehole verticality standardized score Ci is the same as the process of obtaining the borehole depth standardized score Ai.

4. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S2, the borehole stability assessment process: If the drilling stability score Qi is greater than or equal to the drilling stability score threshold, a drilling instability signal is generated, otherwise a stable signal is generated.

5. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S3, the process of obtaining the grouting permeability coefficient K is: The calculation of grout permeability coefficient is usually based on Darcy's law; The grouting permeability coefficient K is calculated.

6. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S3, the process of obtaining the grouting stability fraction is as follows: Obtain the grouting permeability coefficient Kij of the boreholes in each area; Kij represents the grouting permeability coefficient of the jth borehole in the i-th region; The grouting permeability coefficient Kij of each area is integrated to obtain the grouting permeability coefficient group and the grouting stability score is calculated.

7. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S3, the grouting stability assessment process is: If the grouting stability score Ri is greater than or equal to the preset grouting stability score threshold, a grouting instability signal is generated; otherwise, a grouting stability signal is generated.

8. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S4, the correlation coefficient analysis process is: Obtain the drilling stability score Qi and grouting stability score Ri of each area; Integrate the borehole stability scores Qi of all regions to obtain the borehole stability score group; The correlation coefficient was calculated; If the correlation coefficient r is greater than or equal to the preset correlation coefficient threshold, the quality of punching is jointly affected by the drilling stability score Qi and the grouting stability score Ri; otherwise, they are not jointly affected.

9. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 1, characterized in that: In S5, if the punching abnormality score is greater than or equal to the preset punching abnormality score threshold, it means that the corresponding punching is abnormal, and a punching quality unqualified signal is generated, otherwise a punching quality qualified signal is generated.

10. A method for forming a hole for a hot melt landslide slope pile foundation according to claim 9, characterized in that: The process of obtaining the punching anomaly score is as follows: The drilling stability fraction factor MQ is calculated; The grouting stability fraction factor MR is calculated; The weight of the drilling stability score factor MQ is assigned to Wa, and the weight of the grouting stability score factor MR is assigned to Wb, and both Wa and Wb are greater than 0, Rmax and Rmin are the maximum grouting stability score and the minimum grouting stability score in the grouting stability score group, respectively, and βR is the standard deviation of the grouting stability score; The punching anomaly score δ is calculated.

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