A hole diameter measurement method for hole construction

Abstract

The present invention relates to the field of aperture measurement, and discloses an aperture measurement method for hole forming construction, comprising: according to a pre-configured construction plan, using a drilling device to perform hole forming construction at a construction site to obtain an initial pile hole, the pile hole is used for cast-in-place pile construction, and the construction plan includes a target construction size; extending a detection arm into the pile hole, a plurality of sensors are installed at the front end of the detection arm, and the plurality of sensors include a rangefinder and an angle measuring instrument; according to the on-site geological data of the construction site, generating an aperture measurement plan, the aperture measurement plan includes a plurality of aperture measurement position information binary groups, each of which includes a measurement height and a measurement angle; controlling the detection arm to execute the aperture measurement plan, and obtaining a plurality of measurement results, each of which includes a forward measurement value and a reverse measurement value; generating an aperture measurement result according to the plurality of measurement results. Thus, the accuracy of the aperture measurement result of the hole forming construction is improved.

Description

Technical Field

[0001] The invention relates to the field of aperture measurement, and in particular to an aperture measurement method used in hole forming construction. Background Art

[0002] Bored piles are a relatively mature technology in construction projects. However, due to different geological conditions at the construction site, the construction workers' operation level and practical experience are also different, so there are often some problems with the quality of the bored piles during the construction process.

[0003] In the existing aperture measurement process of drilling construction, the following technical problems often exist: first, generally, there is a lack of clear construction plan when drilling construction is carried out on the construction site, resulting in poor construction efficiency; when faced with complex construction environments and conditions, the construction personnel have limited experience and lack a comprehensive understanding of the construction site. The aperture measurement plan obtained solely based on the experience of the construction personnel is likely to result in low measurement accuracy; the measurement results lack multi-angle verification, resulting in poor reliability and low accuracy of the measurement results; second, generally in the aperture measurement process, the unevenness of the aperture has a greater impact on the aperture measurement results, resulting in low measurement accuracy, fewer factors to consider during measurement, and a lack of clear measurement basis, resulting in low measurement efficiency; third, for multiple aperture measurement results with large errors, the measurement results are inaccurate, and there is a lack of troubleshooting order for multiple aperture measurement results with large errors, resulting in a large amount of manpower and reduced troubleshooting efficiency. Summary of the invention

[0004] The summary of the invention is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The summary of the invention is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] The present invention proposes a method for measuring the aperture of a hole for drilling construction to solve one or more of the technical problems mentioned in the above background technology part.

[0006] The invention provides a method for measuring the aperture of a borehole, comprising: performing borehole construction at a construction site using a drilling device according to a pre-configured construction plan to obtain an initial pile hole, the pile hole being used for cast-in-place pile construction, the construction plan including a target construction size; extending a detection arm into the pile hole, a plurality of sensors being installed at the front end of the detection arm, the plurality of sensors including a rangefinder and an angle measuring instrument; generating an aperture measurement scheme according to on-site geological data of the construction site, the aperture measurement scheme including a plurality of aperture measurement position information tuples, each of which including a measurement height and a measurement angle; controlling the detection arm to execute the aperture measurement scheme to obtain a plurality of measurement results, each of which including a forward measurement value and a reverse measurement value; generating an aperture measurement result according to the plurality of measurement results.

[0007] Optionally, multiple measurement results are obtained through the following steps: for multiple aperture measurement position information binary groups, sort them in descending order according to the measurement heights included to obtain a sequence of aperture measurement position information binary groups; for each aperture measurement position information binary group in the sequence of aperture measurement position information binary groups, control the detection arm to move to the measurement height and measurement angle in each aperture measurement position information binary group, execute the aperture measurement plan, and obtain multiple measurement results.

[0008] Optionally, the forward measurement value and the reverse measurement value are generated by the following steps: for each aperture measurement position information tuple in the aperture measurement position information tuple sequence, control the detection arm to move to the corresponding measurement height, use the measurement angle included in the aperture measurement position information tuple as the initial measurement angle, and control the rangefinder to measure according to the initial measurement angle to obtain the forward measurement value; calculate the reverse measurement angle corresponding to the initial measurement angle, and control the rangefinder to measure according to the reverse measurement angle to obtain the reverse measurement value.

[0009] Optionally, the aperture measurement scheme also includes the flatness of the pile hole wall, and the method also includes: querying the corresponding single-point measurement number and deflection angle according to the pile hole wall flatness; generating a continuous measurement angle group corresponding to each aperture measurement position information binary group according to the single-point measurement number and the deflection angle.

[0010] Optionally, the forward measurement value and the reverse measurement value are generated by the following steps: for each aperture measurement position information tuple in the aperture measurement position information tuple sequence, when the detection arm moves to the corresponding measurement height, the rangefinder is controlled to measure each continuous measurement angle in the corresponding continuous measurement angle group, and the forward measurement value and the reverse measurement value corresponding to each continuous measurement angle are obtained.

[0011] Optionally, the aperture measurement method for hole-forming construction also includes: for the measurement results corresponding to each aperture measurement position information binary in the aperture measurement position information binary sequence, each aperture measurement position information binary in which the difference between the forward measurement value and the reverse measurement value in the aperture measurement position information binary sequence is greater than or equal to a preset error threshold is added to the key monitoring result group; obtaining a pre-configured measurement height correspondence table, the measurement height correspondence table including multiple measurement heights and an importance score corresponding to each measurement height; matching the measurement height included in the aperture measurement position information binary corresponding to each key monitoring result in the key monitoring result group in the measurement height correspondence table to obtain the importance score corresponding to each key monitoring result; For each key monitoring result in the key monitoring result group, determine the measurement difficulty score corresponding to each key monitoring result according to the number of single-point measurements corresponding to the aperture measurement position information binary group corresponding to each key monitoring result; configure weights for the importance score and measurement difficulty score corresponding to the key monitoring results respectively, and perform weighted summation of the importance score and measurement difficulty score corresponding to each key monitoring result through the weights to obtain a comprehensive score corresponding to each key monitoring result; sort the key monitoring result group according to the comprehensive score corresponding to each key monitoring result to obtain a key monitoring result sequence; and check the aperture measurement results of the aperture measurement position information binary group corresponding to each key monitoring result according to the key monitoring result sequence.

[0012] The present invention has the following beneficial effects: 1. By pre-configuring the target construction size, the construction personnel strictly carry out the construction according to the target construction size at the construction site, which is beneficial to improving the construction efficiency; by using the on-site geological data of the construction site to generate the measurement height and measurement angle of the aperture, the aperture measurement deviation caused by the lack of experience or misjudgment of the construction personnel can be reduced, and the aperture measurement accuracy can be improved; by generating corresponding forward measurement values ​​and reverse measurement values ​​for each aperture measurement position information binary group, the same aperture is measured from two different directions, which is helpful to more comprehensively understand the actual situation of the aperture, eliminate errors, and improve the accuracy of the measurement results; 2. By measuring the flatness of the pile hole wall, increasing the number of single-point measurements of the pile hole and determining the deflection angle, the deviation can be controlled, the measurement accuracy can be improved, and unnecessary repeated measurements can be avoided. Thereby improving the measurement efficiency; although single-point measurement is simple and easy, there may be accidental errors. Continuous measurement through different deflection angles can reduce the impact of accidental errors on the measurement results and improve the accuracy of the measurement results; 3. By focusing on monitoring the aperture measurement position information tuple whose difference between the forward measurement value and the reverse measurement value is greater than or equal to the preset error threshold, it is beneficial to improve the accuracy of the measurement results; the importance score corresponding to the aperture measurement is determined by the aperture measurement height, and the measurement difficulty score corresponding to the aperture measurement is determined by the number of single-point measurements. The key monitoring result sequence obtained can assist the investigation personnel to check the aperture measurement results in a given order. There is no need for the investigation personnel to actively judge, and the aperture measurement results of key positions with large errors can be discovered in time, saving investigation manpower and improving investigation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0014] Figure 1 The present invention is a flow chart of a method for measuring the aperture of a hole used in hole forming construction. DETAILED DESCRIPTION

[0015] The present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0016] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0017] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0018] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0019] The names of the messages or information exchanged between multiple devices of the present invention are only for illustrative purposes, and are not used to limit the scope of these messages or information.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0021] like Figure 1 Shown is a flow chart of a method for measuring aperture in hole forming construction according to the present invention.

[0022] Step 101, according to the pre-configured construction plan, a drilling device is used to perform hole construction at the construction site to obtain an initial pile hole, and the pile hole is used for cast-in-place pile construction. The construction plan includes a target construction size; in some embodiments, the execution body of a hole diameter measurement method for hole construction of the present invention can be a background server. The pre-configured construction plan includes a target construction size, and a drilling device is used to perform hole construction at the construction site according to the target construction size to obtain an initial pile hole. Specifically, the drilling device can be a rotary drilling rig, and the initial pile hole is used for cast-in-place pile construction.

[0023] Step 102, extend the detection arm into the pile hole, and the front end of the detection arm is equipped with multiple sensors, including a rangefinder and an angle measuring instrument; in some embodiments, the rangefinder is used to measure the diameter distance from the front end of the detection arm to the inner wall of the pile hole, and the diameter distance of the pile hole at different heights and angles can be obtained through accurate measurement of the rangefinder. The angle measuring instrument is used to measure the angle between the detection arm and the axis of the pile hole and the inclination angle of the detection arm in the pile hole, which is of great significance for analyzing the inclination of the pile hole, judging whether the pile hole is vertical, and subsequent construction adjustments.

[0024] Step 103, generating an aperture measurement scheme based on the on-site geological data of the construction site, the aperture measurement scheme including a plurality of aperture measurement position information tuples, each of which includes a measurement height and a measurement angle; in some embodiments, the on-site geological data of the construction site may be a geological structure map and a hydrogeological map of the construction site area, wherein the aperture measurement position information tuple generated by the geological structure map can avoid complex geological structure areas such as faults and folds, thereby reducing the interference of geological factors on the measurement results; the distribution, type, water level, flow direction, etc. of groundwater in the construction site area is determined by the hydrogeological map, and the generated aperture measurement position information tuple can avoid the negative impact of groundwater on the measurement results. In practice, the plurality of aperture measurement position information tuples may include a first aperture measurement position information tuple, a second aperture measurement position information tuple, and a third aperture measurement position information tuple. The first aperture measurement position information tuple is now taken as an example. The first aperture measurement position information tuple includes a measurement height and a measurement angle. Specifically, the measurement height may be 5 meters and the measurement angle may be 30 degrees (the angle relative to the horizontal plane).

[0025] Step 104, control the detection arm to execute the aperture measurement scheme to obtain multiple measurement results, each measurement result includes a forward measurement value and a reverse measurement value; optionally, the multiple measurement results are obtained by the following steps: for multiple aperture measurement position information tuples, sort them in descending order according to the included measurement heights to obtain an aperture measurement position information tuple sequence; for each aperture measurement position information tuple in the aperture measurement position information tuple sequence, control the detection arm to move to the measurement height and measurement angle in each aperture measurement position information tuple, execute the aperture measurement scheme, and obtain multiple measurement results.

[0026] In some embodiments, when multiple aperture measurement position information binary groups include a first aperture measurement position information binary group, a second aperture measurement position information binary group, and a third aperture measurement position information binary group, wherein the measurement height included in the first aperture measurement position information binary group is 5 meters, the measurement height included in the second aperture measurement position information binary group is 15 meters, and the measurement height included in the third aperture measurement position information binary group is 25 meters, for the multiple aperture measurement position information binary groups, they are sorted in descending order according to the included measurement heights to obtain an aperture measurement position information binary group sequence, then the aperture measurement position information binary group sequence is the third aperture measurement position information binary group, the second aperture measurement position information binary group, and the first aperture measurement position information binary group.

[0027] In some embodiments, the detection arm is controlled to execute the aperture measurement scheme to obtain multiple measurement results. Specifically, the multiple measurement results may be measurement result one corresponding to the first aperture measurement position information binary group, measurement result two corresponding to the second aperture measurement position information binary group, and measurement result three corresponding to the third aperture measurement position information binary group. Each measurement result includes a forward measurement value and a reverse measurement value. Taking measurement result three as an example, the forward measurement value of measurement result three may be 35.02 meters, and the reverse measurement value may be 35.08 meters.

[0028] Optionally, the forward measurement value and the reverse measurement value are generated by the following steps: for each aperture measurement position information tuple in the aperture measurement position information tuple sequence, control the detection arm to move to the corresponding measurement height, use the measurement angle included in the aperture measurement position information tuple as the initial measurement angle, and control the rangefinder to measure according to the initial measurement angle to obtain the forward measurement value; calculate the reverse measurement angle corresponding to the initial measurement angle, and control the rangefinder to measure according to the reverse measurement angle to obtain the reverse measurement value.

[0029] In some embodiments, for the third aperture measurement position information binary group, the detection arm is controlled to move to the corresponding measurement height (25 meters). Assuming that the measurement angle included in the third aperture measurement position information binary group is 30 degrees, 30 degrees is used as the initial measurement angle, and the rangefinder is controlled to measure according to the initial measurement angle, and the forward measurement value is 35.02 meters. The initial measurement angle plus 180 degrees is the reverse measurement angle (210 degrees) corresponding to the initial measurement angle, and the rangefinder is controlled to measure according to the reverse measurement angle, and the reverse measurement value is 35.08 meters. When the measurement result three corresponding to the third aperture measurement position information binary group is obtained, according to the aperture measurement position information binary group sequence, the detection arm is controlled to measure the second aperture measurement position information binary group, and the measurement result two corresponding to the second aperture measurement position information binary group is obtained. By analogy, the detection arm is controlled to perform the measurement of each aperture measurement position information binary group in the aperture measurement position information binary group sequence, and the measurement result corresponding to each aperture measurement position information binary group is obtained.

[0030] Step 105: Generate an aperture measurement result based on the multiple measurement results.

[0031] In some embodiments, for multiple measurement results, the average of the forward measurement value and the reverse measurement value of each measurement result in the multiple measurement results is calculated to reduce the influence of errors, and the aperture measurement result corresponding to each measurement result in the multiple measurement results is obtained. Taking measurement result 3 as an example, the aperture measurement result corresponding to measurement result 3 is 35.05 meters ((35.02+35.08)÷2=35.05).

[0032] In some embodiments, by pre-configuring target construction dimensions, construction personnel can strictly follow the target construction dimensions during construction at the construction site, which is conducive to improving construction efficiency; using the on-site geological data of the construction site to generate the measurement height and measurement angle of the aperture can reduce the aperture measurement deviation caused by the lack of experience or misjudgment of the construction personnel, and improve the aperture measurement accuracy; by generating corresponding forward measurement values ​​and reverse measurement values ​​for each aperture measurement position information binary group, measuring the same aperture from two different directions helps to more comprehensively understand the actual situation of the aperture, eliminate errors, and improve the accuracy of the measurement results.

[0033] In some embodiments, in order to further solve the second technical problem described in the background technology part, namely, "generally in the aperture measurement process, the unevenness of the aperture has a greater impact on the aperture measurement results, resulting in low accuracy of the measurement results, fewer considerations during measurement, and a lack of clear measurement basis, resulting in low measurement efficiency", in some embodiments of the present invention, multiple measurement results are obtained through the following steps: for multiple aperture measurement position information tuples, sort them in order from large to small according to the measurement heights included to obtain an aperture measurement position information tuple sequence; for each aperture measurement position information tuple in the aperture measurement position information tuple sequence, control the detection arm to move to the measurement height and measurement angle in each aperture measurement position information tuple, execute the aperture measurement plan, and obtain multiple measurement results.

[0034] The forward measurement value and the reverse measurement value are generated by the following steps: for each aperture measurement position information tuple in the aperture measurement position information tuple sequence, the detection arm is controlled to move to the corresponding measurement height, the measurement angle included in the aperture measurement position information tuple is used as the initial measurement angle, and the rangefinder is controlled to measure according to the initial measurement angle to obtain the forward measurement value; the reverse measurement angle corresponding to the initial measurement angle is calculated, and the rangefinder is controlled to measure according to the reverse measurement angle to obtain the reverse measurement value.

[0035] The aperture measurement scheme also includes the flatness of the pile hole wall, and the method also includes: querying the corresponding single-point measurement times and deflection angles according to the pile hole wall flatness; generating a continuous measurement angle group corresponding to each aperture measurement position information binary group according to the single-point measurement times and deflection angles.

[0036] In some embodiments, the pile hole wall flatness refers to the smoothness of the pile hole wall, and the number of single-point measurements refers to the number of measurements performed at a point in the pile hole. A laser scanning device is also installed at the front end of the detection arm. The laser scanning device can be a laser radar. The laser scanning device is used to obtain the pile hole wall flatness and obtain multiple pile hole wall flatnesses. Each of the multiple pile hole wall flatnesses obtained is queried in a pre-configured pile hole wall flatness table to obtain the number of single-point measurements and the deflection angle corresponding to each pile hole wall flatness. The pre-configured pile hole wall flatness table includes different pile hole wall flatnesses and the number of single-point measurements and the deflection angle corresponding to each pile hole wall flatness.

[0037] In some embodiments, assuming that the flatness of the walls of multiple pile holes can be low, medium, and high, taking the pile hole wall flatness of "medium" as an example, by querying the pile hole wall flatness table, it is obtained that the number of single-point measurements corresponding to the pile hole wall flatness of "medium" is 3 times, and the deflection angle is ±2 degrees, then the continuous measurement angle group corresponding to the aperture measurement position information binary group is negative 2 degrees, 0 degrees, and 2 degrees.

[0038] The forward measurement value and the reverse measurement value are generated by the following steps: for each aperture measurement position information binary group in the aperture measurement position information binary group sequence, when the detection arm moves to the corresponding measurement height, the rangefinder is controlled to measure each continuous measurement angle in the corresponding continuous measurement angle group, and the forward measurement value and the reverse measurement value corresponding to each continuous measurement angle are obtained.

[0039] In some embodiments, taking the first aperture measurement position information binary in the aperture measurement position information binary sequence as an example, when the detection arm moves to the corresponding measurement height (5 meters), the rangefinder is controlled to measure each continuous measurement angle in the continuous measurement angle group corresponding to the first aperture measurement position information binary. If the continuous measurement angle group corresponding to the first aperture measurement position information binary includes negative 3 degrees, 0 degrees, and 3 degrees, the positive measurement value corresponding to negative 3 degrees is 32.03 meters, the reverse measurement value corresponding to negative 3 degrees is 32.08 meters, the positive measurement value corresponding to 0 degrees is 32.05 meters, the reverse measurement value corresponding to 0 degrees is 32.04 meters, the positive measurement value corresponding to 3 degrees is 32.02 meters, and the reverse measurement value corresponding to 3 degrees is 32.03 meters. The accuracy of the measurement result can be improved by the continuous measurement angle group corresponding to the aperture measurement position information binary.

[0040] In some embodiments, by measuring the flatness of the pile hole wall, increasing the number of single-point measurements of the pile hole and determining the deflection angle, the deviation can be controlled, the measurement accuracy can be improved, and unnecessary repeated measurements can be avoided, thereby improving the measurement efficiency. Although single-point measurement is simple and easy, there may be accidental errors. Continuous measurement at different deflection angles can reduce the impact of accidental errors on the measurement results and improve the accuracy of the measurement results.

[0041] In some embodiments, in order to further solve the third technical problem described in the background technology part, namely, "for multiple aperture measurement results with large errors, the measurement results are not accurate, and at the same time, there is a lack of troubleshooting order for multiple aperture measurement results with large errors, which leads to a large amount of manpower consumption and reduced troubleshooting efficiency", in some embodiments of the present invention, the aperture measurement method for hole forming construction also includes: step one, for the measurement results corresponding to each aperture measurement position information binary in the aperture measurement position information binary sequence, each aperture measurement position information binary in which the difference between the forward measurement value and the reverse measurement value in the aperture measurement position information binary sequence is greater than or equal to a preset error threshold is added to the key monitoring result group; step two, obtain a pre-configured measurement height correspondence table, the measurement height correspondence table includes multiple measurement heights and the importance score corresponding to each measurement height; add the aperture corresponding to each key monitoring result in the key monitoring result group The measurement height included in the aperture measurement position information binary is matched in the measurement height corresponding table to obtain the importance score corresponding to each key monitoring result; step three, for each key monitoring result in the key monitoring result group, determine the measurement difficulty score corresponding to each key monitoring result according to the number of single-point measurements corresponding to the aperture measurement position information binary corresponding to each key monitoring result; step four, respectively configure weights for the importance score and measurement difficulty score corresponding to the key monitoring results, and perform weighted summation of the importance score and measurement difficulty score corresponding to each key monitoring result through the weights to obtain the comprehensive score corresponding to each key monitoring result; step five, sort the key monitoring result group according to the comprehensive score corresponding to each key monitoring result to obtain the key monitoring result sequence; according to the key monitoring result sequence, check the aperture measurement results of the aperture measurement position information binary corresponding to each key monitoring result.

[0042] In some embodiments, when the aperture measurement position information binary sequence includes the third aperture measurement position information binary, the second aperture measurement position information binary, and the first aperture measurement position information binary, if the difference between the forward measurement value (30.58 meters) and the reverse measurement value (30.51 meters) included in the third aperture measurement position information binary is 0.07 meters (30.58-30.51=0.07), and 0.07 meters is greater than the preset error threshold (0.03 meters), the third aperture measurement position information binary is added to the key monitoring result group as key monitoring result 1, and if the difference between the forward measurement value and the reverse measurement value included in the second aperture measurement position information binary is also greater than the preset error threshold, the second aperture measurement position information binary is also added to the key monitoring result group as key monitoring result 2. If the difference between the forward measurement value and the reverse measurement value included in the first aperture measurement position information binary is less than the preset error threshold, the first aperture measurement position information binary is not added to the key monitoring result group. The measurement height included in the aperture measurement position information binary corresponding to the key monitoring result is matched in the measurement height correspondence table, and the importance score corresponding to the key monitoring result is 90 points. If the number of single-point measurements corresponding to the aperture measurement position information binary corresponding to the key monitoring result is 1, then according to the preset scoring standard, the measurement difficulty score corresponding to the key monitoring result is 60 points. The preset scoring standard is 60 points for 1 single-point measurement, 80 points for 2 single-point measurements, and 90 points for 3 single-point measurements. A weight of 70% is assigned to the importance score corresponding to the key monitoring result, and a weight of 30% is assigned to the measurement difficulty score. The importance score and measurement difficulty score corresponding to the key monitoring result one are weighted and summed up through the weights, and the comprehensive score corresponding to the key monitoring result one is 81 points (70%×90+30%×60=81). If the comprehensive score corresponding to the key monitoring result two is 89 points, the key monitoring result sequence is key monitoring result two and key monitoring result one. Therefore, the investigation order is the second aperture measurement position information binary corresponding to the key monitoring result two and the third aperture measurement position information binary corresponding to the key monitoring result one.

[0043] In these embodiments, by focusing on monitoring the aperture measurement position information binary group whose difference between the forward measurement value and the reverse measurement value is greater than or equal to the preset error threshold, it is beneficial to improve the accuracy of the measurement results; the importance score corresponding to the aperture measurement is determined by the aperture measurement height, and the measurement difficulty score corresponding to the aperture measurement is determined by the number of single-point measurements. The key monitoring result sequence obtained can assist the investigation personnel to investigate the aperture measurement results in a given order. The investigation personnel do not need to actively judge, and the aperture measurement results of key positions with large errors can be discovered in time, saving investigation manpower and improving investigation efficiency.

[0044] The above descriptions are only some preferred embodiments of the present invention and the explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solutions formed by the specific combination of the above technical features, but also should cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A method for measuring the aperture of a hole in a drilling operation, characterized in that: include: According to a pre-configured construction plan, a drilling device is used to perform hole-forming construction at the construction site to obtain an initial pile hole, wherein the pile hole is used for cast-in-place pile construction, and the construction plan includes a target construction size; Extending a detection arm into the pile hole, a plurality of sensors are installed at the front end of the detection arm, and the plurality of sensors include a rangefinder and an angle measuring instrument; Generate an aperture measurement plan based on the on-site geological data of the construction site, avoid complex geological structure areas through the on-site geological data of the construction site, reduce the interference of geological factors on the measurement results, or avoid the negative impact of groundwater on the measurement results; the aperture measurement plan includes a plurality of aperture measurement position information tuples, each of which includes a measurement height and a measurement angle, and the measurement angle is an angle relative to a horizontal plane; Controlling the detection arm to execute the aperture measurement scheme to obtain a plurality of measurement results, each measurement result including a forward measurement value and a reverse measurement value; generating an aperture measurement result based on the plurality of measurement results; The multiple measurement results are obtained by following the steps: For the multiple aperture measurement position information tuples, sorting them in descending order of the included measurement heights to obtain an aperture measurement position information tuple sequence; For each aperture measurement position information binary group in the aperture measurement position information binary group sequence, control the detection arm to move to the measurement height and measurement angle in each aperture measurement position information binary group, execute the aperture measurement scheme, and obtain multiple measurement results; The forward measurement value and the reverse measurement value are generated by the following steps: For each aperture measurement position information binary group in the aperture measurement position information binary group sequence, control the detection arm to move to a corresponding measurement height, use the measurement angle included in the aperture measurement position information binary group as an initial measurement angle, and control the rangefinder to measure according to the initial measurement angle to obtain a forward measurement value; calculate a reverse measurement angle corresponding to the initial measurement angle, and control the rangefinder to measure according to the reverse measurement angle to obtain a reverse measurement value; The hole diameter measurement scheme also includes the flatness of the pile hole wall, and the method further includes: The front end of the detection arm is also equipped with a pile hole wall flatness measuring device, and the pile hole wall flatnesses of multiple pile holes are obtained according to the pile hole wall flatness measuring device; the corresponding single-point measurement times and deflection angles are queried in a pre-configured pile hole wall flatness table according to the multiple pile hole wall flatnesses; According to the single-point measurement times and the deflection angle, a continuous measurement angle group corresponding to each aperture measurement position information binary group is generated; The forward measurement value and the reverse measurement value are generated by the following steps: For each aperture measurement position information binary group in the aperture measurement position information binary group sequence, when the detection arm moves to the corresponding measurement height, the rangefinder is controlled to measure each continuous measurement angle in the corresponding continuous measurement angle group, and the forward measurement value and the reverse measurement value corresponding to each continuous measurement angle are obtained.

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