A deep horizontal displacement correction method and system based on the inclination tube initial depth

Abstract

The present application relates to the field of deep horizontal displacement monitoring, and provides a deep horizontal displacement correction method and system based on the initial depth of an inclinometer tube. The deep horizontal displacement correction method based on the initial depth of the inclinometer tube comprises: if the initial depth is the bottom of the inclinometer tube, calculating a first difference value between the absolute value of the deep horizontal displacement at the tube mouth of the inclinometer tube after correction and the horizontal displacement at the tube mouth of the inclinometer tube; if the initial depth is not the bottom of the inclinometer tube, calculating a second difference value between the absolute value of the deep horizontal displacement at the bottom of the inclinometer tube after correction and the horizontal displacement at the bottom of the inclinometer tube; distributing the first difference value or the second difference value to each soil layer according to the reciprocal of the shear strength to obtain a first distribution error; determining a second distribution error of each monitoring point of each soil layer according to the number of monitoring points contained in each soil layer; and obtaining the final displacement absolute value of each monitoring point according to the deep horizontal displacement of each monitoring point after correction. The accuracy of the deep horizontal displacement is improved.

Description

Technical Field

[0001] This invention relates to the field of deep horizontal displacement monitoring technology, and in particular to a method and system for correcting deep horizontal displacement based on the starting depth of an inclinometer tube. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] In the process of foundation pit monitoring, deep horizontal displacement monitoring has always been regarded as an effective means of evaluating foundation pit safety due to its intuitive, accurate and continuous characteristics. It is a monitoring method that truly reflects the degree of impact of foundation pit excavation and dewatering on the sidewalls of the foundation pit.

[0004] The principle of deep horizontal displacement monitoring is as follows: A sealed plumb bob in the inclinometer tube indicates the vertical direction of gravity. During the measurement process, a high-precision sensor is used to measure the actual angle between the axis of the inclinometer tube and the vertical direction. The deep horizontal displacement at the location of the inclinometer tube is then equal to the length of the instrument tube multiplied by the sine of the measured angle. The displacement curve of the monitoring hole is obtained by summing all the deep horizontal displacement values ​​from bottom to top of the entire inclinometer tube.

[0005] The above describes the principle and method of deep horizontal displacement monitoring under ideal conditions. However, various problems may arise during actual monitoring. For example, the instrument rollers may suddenly jam or become stuck; silt may adhere to the bottom of the inclinometer tube; the inclinometer tube may twist or become non-vertical during the pouring of the support piles; there may be too much sediment and silt at the bottom of the inclinometer tube after pouring; and poor site conditions may cause severe deformation of the inclinometer tube during pre-embedding due to external forces. All of these situations can lead to distortion and errors in the measured values.

[0006] The aforementioned situation has two main impacts on deep horizontal displacement data. If the starting point for calculating the deep horizontal displacement remains below the excavation surface, it can be assumed that the starting point has not moved, and the overall data error mainly stems from the measurement errors at each monitoring point. However, if the starting point for calculating the deep horizontal displacement is above the excavation surface, the starting point will shift, and the error will originate from two sources: the error at the data starting point and the measurement error at the monitoring points. Currently, there are no specific theories or methods within the industry for handling these two types of errors. Summary of the Invention

[0007] To address the technical problems mentioned above, this invention provides a method and system for correcting deep horizontal displacement based on the starting depth of an inclinometer. This invention proposes the principle that the measurement error of deep horizontal displacement is inversely proportional to the shear strength of the soil layer, thereby improving the accuracy of deep horizontal displacement and the timeliness of early warning response during foundation pit monitoring.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] The first aspect of the present invention provides a method for correcting deep horizontal displacement based on the starting depth of an inclinometer.

[0010] A method for correcting deep horizontal displacement based on the starting depth of an inclinometer tube includes:

[0011] If the starting depth is the bottom of the inclinometer tube, then obtain the corrected deep horizontal displacement value at the inclinometer tube opening, and calculate the first difference between the corrected deep horizontal displacement value at the inclinometer tube opening and the absolute value of the horizontal displacement at the inclinometer tube opening.

[0012] If the starting depth is not the bottom of the inclinometer tube, obtain the deep horizontal displacement value at the bottom of the inclinometer tube after correction; calculate the second difference between the deep horizontal displacement value at the bottom of the inclinometer tube after correction and the absolute value of the horizontal displacement at the bottom of the inclinometer tube.

[0013] Calculate the shear strength of each soil layer, and allocate the first or second difference to each soil layer according to the reciprocal of the shear strength to obtain the first allocation error; determine the second allocation error of each monitoring point of each soil layer according to the number of monitoring points contained in each soil layer and the first allocation error; obtain the final absolute value of displacement of each monitoring point according to the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point.

[0014] Furthermore, the shear strength of each soil layer is calculated using the following formula:

[0015]

[0016] in, Indicates the shear strength of the j-th soil layer; This represents the cohesion of the j-th soil layer; This represents the normal stress on the j-th soil layer; This represents the internal friction angle of the j-th soil layer.

[0017] Furthermore, the first allocation error is obtained by distributing the first difference or the second difference to each soil layer based on the reciprocal of the shear strength; this is expressed by the following formula:

[0018]

[0019] in, Indicates the first allocation error; This represents the shear strength of the m-th soil layer; Indicates the shear strength of the j-th soil layer; This indicates the first or second difference.

[0020] Furthermore, the final absolute value of displacement for each monitoring point is obtained based on the corrected deep horizontal displacement value and the second allocation error of that monitoring point; expressed by the following formula:

[0021]

[0022] in, Indicates the first i The final absolute value of the displacement of each monitoring point; This represents the second allocation error for each monitoring point; Indicates the first allocation error; This indicates the number of monitoring points for each soil layer.

[0023] Furthermore, if the starting depth is the bottom of the inclinometer tube, the corrected deep horizontal displacement value at the inclinometer tube opening is obtained; the method includes: if the starting depth is the bottom of the inclinometer tube, the deep horizontal displacement values ​​of all monitoring points are obtained, and the deep horizontal displacement values ​​of all monitoring points are corrected by angle to obtain the corrected deep horizontal displacement values ​​of all monitoring points; the corrected deep horizontal displacement value at the inclinometer tube opening is extracted;

[0024] If the starting depth is not the bottom of the inclinometer tube, the deep horizontal displacement value at the bottom of the inclinometer tube after correction is obtained. The method includes: if the starting depth is not the bottom of the inclinometer tube, the deep horizontal displacement value of all monitoring points is obtained, and the deep horizontal displacement value of all monitoring points is corrected by angle to obtain the corrected deep horizontal displacement value of all monitoring points; the deep horizontal displacement value at the bottom of the inclinometer tube after correction is extracted.

[0025] Furthermore, the process of obtaining the absolute value of the horizontal displacement at the bottom of the inclinometer tube includes: measuring the absolute value of the horizontal displacement at the inclinometer tube opening using a two-dimensional laser displacement meter; and calculating the absolute value of the horizontal displacement at the bottom of the inclinometer tube from the opening to the bottom based on the absolute value of the horizontal displacement at the inclinometer tube opening.

[0026] A second aspect of the present invention provides a deep horizontal displacement correction system based on the starting depth of an inclinometer tube.

[0027] A deep horizontal displacement correction system based on the starting depth of an inclinometer tube includes:

[0028] The first working condition module is configured to: if the starting depth is the bottom of the inclinometer tube, obtain the corrected deep horizontal displacement value at the inclinometer tube opening, and calculate the first difference between the corrected deep horizontal displacement value at the inclinometer tube opening and the absolute value of the horizontal displacement at the inclinometer tube opening.

[0029] The second working condition module is configured to: if the starting depth is not the bottom of the inclinometer tube, obtain the deep horizontal displacement value at the bottom of the inclinometer tube after correction; calculate the second difference between the deep horizontal displacement value at the bottom of the inclinometer tube after correction and the absolute value of the horizontal displacement at the bottom of the inclinometer tube.

[0030] The final displacement determination module is configured to: calculate the shear strength of each soil layer; allocate a first difference or a second difference to each soil layer based on the reciprocal of the shear strength to obtain a first allocation error; determine a second allocation error for each monitoring point of each soil layer based on the number of monitoring points contained in each soil layer and the first allocation error; and obtain the final absolute value of the displacement of each monitoring point based on the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point.

[0031] A third aspect of the present invention provides a computer device comprising:

[0032] A processor, adapted to execute computer programs;

[0033] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps in the deep horizontal displacement correction method based on the inclinometer starting depth as described in the first aspect above.

[0034] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program adapted to be loaded by a processor and to execute steps in the deep horizontal displacement correction method based on the inclinometer starting depth as described in the first aspect above.

[0035] The fifth aspect of the present invention provides a computer program product or computer program.

[0036] This invention provides a computer program product or computer program comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the steps in the deep horizontal displacement correction method based on the inclinometer starting depth described in the first aspect above.

[0037] Compared with the prior art, the beneficial effects of the present invention are:

[0038] 1. This invention classifies the errors of deep horizontal displacement according to the different depths of the starting point of deep horizontal displacement and proposes different data correction methods, so as to restore the true deformation data to the greatest extent.

[0039] 2. This invention innovatively proposes the principle of distributing monitoring points in the soil layer inversely proportional to the shear strength of the soil layer, thereby maximizing the precision of error processing and improving the accuracy of displacement.

[0040] 3. This invention incorporates an angle correction algorithm into the original deep horizontal displacement data, thereby enabling the calculation of the most accurate displacement deformation of the foundation pit. Attached Figure Description

[0041] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0042] Figure 1 This is a flowchart illustrating a deep horizontal displacement correction method based on the starting depth of an inclinometer, as shown in an embodiment of the present invention.

[0043] Figure 2 This is an enlarged schematic diagram showing the relative relationship between the inclinometer cross groove and the foundation pit measurement vertical line under actual working conditions, as illustrated in an embodiment of the present invention.

[0044] Figure 3 This is a structural diagram of a deep horizontal displacement correction system based on the starting depth of an inclinometer, as shown in an embodiment of the present invention.

[0045] Figure 4 This is a structural diagram of a computer device shown in an embodiment of the present invention;

[0046] In the diagram, 1 is the vertical line for measuring the foundation pit, and 2 is the cross guide groove. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0048] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0049] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] Terminology Explanation:

[0051] 1. Inclinometer tube: A device used to monitor the lateral deformation of the foundation pit support piles, which is buried inside the support piles or directly buried in the soil around the foundation pit.

[0052] 2. Deep horizontal displacement: The horizontal displacement value of the soil from the top of the foundation pit to a certain depth below the foundation pit, also known as the inclinometer value.

[0053] 3. Shear strength: The ultimate ability of soil or rock to resist failure, mainly reflected by cohesion, internal friction angle and normal stress on the soil.

[0054] 4. Monitoring of horizontal displacement at the top of the support pile: Monitoring points at the top of the support pile are typically monitored using a total station and engineering surveying methods. This invention employs a two-dimensional laser displacement meter for measurement, and the displacement obtained from monitoring the horizontal displacement at the pile top is an absolute value.

[0055] 5. Two-dimensional laser displacement meter: It uses a laser beam to transmit the settlement and displacement changes between the monitoring point and the reference point, and combines automatic spot recognition technology and self-balancing correction function to achieve high-precision monitoring.

[0056] Figure 1 This is a flowchart illustrating a deep horizontal displacement correction method based on the starting depth of an inclinometer, as shown in an embodiment of the present invention; see reference. Figure 1 The method includes:

[0057] If the starting depth is the bottom of the inclinometer tube, then obtain the corrected deep horizontal displacement value at the inclinometer tube opening, and calculate the first difference between the corrected deep horizontal displacement value at the inclinometer tube opening and the absolute value of the horizontal displacement at the inclinometer tube opening.

[0058] If the starting depth is not the bottom of the inclinometer tube, obtain the deep horizontal displacement value at the bottom of the inclinometer tube after correction; calculate the second difference between the deep horizontal displacement value at the bottom of the inclinometer tube after correction and the absolute value of the horizontal displacement at the bottom of the inclinometer tube.

[0059] Calculate the shear strength of each soil layer, and allocate the first or second difference to each soil layer according to the reciprocal of the shear strength to obtain the first allocation error; determine the second allocation error of each monitoring point of each soil layer according to the number of monitoring points contained in each soil layer and the first allocation error; obtain the final absolute value of displacement of each monitoring point according to the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point.

[0060] The technical solution of this embodiment will be described in detail below:

[0061] The data for deep horizontal displacement measurement is relative data, that is, it is obtained by summing the displacement of each measurement position relative to the bottom of the inclinometer tube (default is zero) with the bottom of the inclinometer tube as the reference point.

[0062] (1)

[0063] (2)

[0064] in, L This indicates the length between the guide wheels of the inclinometer tube. This indicates the measured angle between the inclinometer tube and the vertical direction. Indicates the first i Deformation calculation at each measurement location, This represents the measured value of the deep horizontal displacement at the measuring point.

[0065] like Figure 2 As shown, since the foundation pit has not yet been excavated during the installation of the inclinometer, there is a possibility that the cross guide groove 2 may not be perpendicular to the measuring vertical line 1 of the foundation pit. Therefore, the value measured by the probe along the cross guide groove 2 will be less than the actual deformation value. Thus, the deep horizontal displacement data read by the inclinometer... First, angle correction is necessary. This is done by measuring the angle between the cross-shaped guide groove and the vertical line of the foundation pit. β Calculate the deep horizontal displacement deformation value after angle correction. .

[0066] Assume the displacement value read by the inclinometer is Deep horizontal displacement deformation value after angle correction The following formula is used for calculation:

[0067] (3)

[0068] In seeking Then, data correction was performed under two conditions: Condition 1 was when the bottom of the inclinometer tube was stable (i.e., the starting depth was the bottom of the inclinometer tube), and Condition 2 was when the bottom of the inclinometer tube was deformed.

[0069] For operating condition 1: When the bottom of the inclinometer tube is stable (i.e., the starting depth is the bottom of the inclinometer tube), the accuracy of the data mainly depends on the influence of errors during various measurement processes. In this case, correction can be made using the absolute value of the horizontal displacement at the inclinometer tube opening. The absolute value of the horizontal displacement at the tube opening is measured using a two-dimensional laser displacement gauge and recorded as follows: The difference between the deep horizontal displacement value and the absolute value of the horizontal displacement at the pipe opening is denoted as the total error 1, and is calculated according to the following formula:

[0070] (4)

[0071] in, This represents the difference between the deep horizontal displacement value and the absolute value of the horizontal displacement at the pipe opening; This indicates the correction value for the deep horizontal displacement angle at the pipe opening. It can be calculated The formula is obtained.

[0072] The error distribution follows the principle of inversely proportional distribution based on the shear strength of the deformable soil layer and average distribution based on the number of monitoring points within the soil layer.

[0073] For Case 2: When the bottom of the inclinometer tube is deformed (i.e., although the inclinometer tube is buried deeper than the excavation depth of the foundation pit, the bottom is severely clogged or deformed by external forces, causing the starting point to be located above the bottom of the foundation pit), all the measured data are relative displacements. In this case, the absolute value of the horizontal displacement at the tube opening must be used. Based on the standard, the data is calculated from the pipe opening to the pipe bottom according to formulas (1) and (2). The data calculated to the pipe bottom is recorded as follows: At this point, the original deep horizontal displacement after angle correction Displacement calculated from the bottom of the pipe The difference is defined as the total error 2, that is:

[0074] (5)

[0075] The next step is to distribute the error in accordance with the principle of inverse proportional distribution based on the shear strength of the deformable soil layer and average distribution based on the number of monitoring points within the soil layer.

[0076] In this embodiment, the error allocation principle is as follows: during deep horizontal displacement monitoring, the accumulation of data errors is not proportional to the measurement length. There are multiple layers of soil within the excavation area of ​​the foundation pit, each with its own shear strength. The stronger the shear strength, the greater the resistance to deformation, and the smaller the error generated in that layer. Therefore, the error allocation should follow the principle of inversely proportional allocation based on the shear strength of the soil layer, with an average distribution among the monitoring points within each soil layer. Assume there are m layers of soil within the excavation area of ​​the foundation pit, and the physical parameters of each layer are shown in Table 1.

[0077] Table 1 Soil layer parameters within the excavation area of ​​the foundation pit

[0078]

[0079] Based on the above physical parameters, the shear strength of each soil layer within the excavation area of ​​the foundation pit can be calculated using the following formula.

[0080] (6)

[0081] in, Indicates the shear strength of the j-th soil layer; This represents the cohesion of the j-th soil layer; This represents the normal stress on the j-th soil layer; Indicates the internal friction angle of the j-th soil layer; and The quantity is known.

[0082] The normal stress σ on this soil layer is calculated using the following formula:

[0083] (7)

[0084] in, Indicates the first j The unit weight of the soil layer, Indicates the first j The thickness of the soil layer, Indicates the first j Normal stress on the soil layer.

[0085] The specific error allocation is calculated according to the steps and formulas listed in Table 2. It is assumed that there are m layers of soil within the excavation area of ​​the foundation pit, and each layer contains... One monitoring point, for or .

[0086] Table 2. Calculation table of total error distributed inversely according to shear strength.

[0087]

[0088] The final absolute value of the displacement at each deep horizontal displacement monitoring point is calculated using the following formula:

[0089] (8)

[0090] in, Indicates the first i The final absolute value of the displacement of each monitoring point; This represents the second allocation error for each monitoring point; Indicates the first allocation error; This indicates the number of monitoring points for each soil layer.

[0091] This invention fundamentally solves the problem of partial or complete distortion of deep horizontal displacement data during foundation pit monitoring. Existing data processing methods are designed for ideal conditions and cannot predict on-site conditions. However, various unforeseen circumstances can occur on-site during foundation pit monitoring, making it impossible to obtain monitoring data under ideal conditions. The current challenge is how to sift through the raw data, extracting and reconstructing data that truly reflects foundation pit deformation. This invention analyzes the causes of errors from the most direct data source, addressing complex working conditions, and establishes an error allocation mechanism based on deformation mechanisms, thereby maximally solving the problem of deep horizontal displacement data distortion.

[0092] To verify the feasibility of the present invention, a specific implementation method is described below, taking a foundation pit site in a certain location as an example. The surface of this area is covered by river alluvial and marine-continental transitional sediments, mainly composed of cohesive soil and silt, with local soft soil layers. The geomorphological features are characterized by a river alluvial plain with well-developed micro-topography. The foundation pit excavation depth is 16m. Known data and stratigraphic physical parameters are shown in Table 3.

[0093] According to the geotechnical engineering investigation report, the main physical and mechanical properties of the soil layers starting from the excavation face of the foundation pit are shown in Table 3.

[0094] Table 3 Physical and mechanical parameters of the ground strata at the foundation pit site

[0095]

[0096] According to the "Technical Standard for Monitoring of Building Foundation Pit Engineering" GB50497, 14 deep horizontal displacement monitoring holes, numbered CX1-CX14, are set up around the perimeter of the foundation pit.

[0097] Condition 1: The starting depth for calculating deep horizontal displacement is below the bottom of the foundation pit.

[0098] Among them, the CX2 monitoring hole is buried at a depth of 18m, the actual measured depth is 17.5m, and the starting depth for calculating the deep horizontal displacement is 1.5m below the bottom of the foundation pit. The shear strength of each soil layer calculated according to formula (7) and formula (6) is shown in Table 4.

[0099] Table 4. Summary of Shear Strength of Excavated Soil Layers and Number of Soil Monitoring Points

[0100]

[0101] The monitoring data up to a certain monitoring period (September 5, 2023) is shown in Table 5.

[0102] Table 5. Horizontal displacement values ​​at depth in monitoring borehole CX2

[0103]

[0104] The angle between the guide trench and the perpendicular line to the edge of the foundation pit, measured on-site using a vernier angle gauge. β It is 7.5°.

[0105] Angle correction is performed according to formula (3). The data is shown in Table 6.

[0106] Table 6. Horizontal displacement values ​​in the deep layers after CX2 monitoring hole angle correction.

[0107]

[0108] The absolute value of the horizontal displacement at the top of the pile was measured by a two-dimensional laser displacement meter. It is 10.24mm.

[0109] The error is then calculated according to formula (4):

[0110]

[0111] Based on the calculation formula in Table 2, the error distribution coefficient and the monitoring point error are calculated, as shown in Table 7.

[0112] Table 7 CX2 Error Calculation Table

[0113]

[0114] The final deformation value obtained according to Formula 8 As shown in Table 8.

[0115] Table 8. Final Deformation Summary of Each Monitoring Point on CX2

[0116]

[0117] The calculation results show that, when the starting depth is below the bottom of the foundation pit, the original data of the deep horizontal displacement are... And the data after error correction The numerical differences are small.

[0118] Condition 2: The starting depth for calculating deep horizontal displacement is located above the bottom of the foundation pit.

[0119] The CX10 monitoring borehole was buried at a depth of 18m. During the monitoring of the foundation pit, it was found that the probe could only detect a maximum length of 14.5m. The preliminary judgment is that this was due to silt blockage or deformation of the bottom of the inclinometer tube. Therefore, the starting point for calculating the deep horizontal displacement was located 1.5m above the excavation surface of the foundation pit. The measured deep horizontal displacements up to a certain monitoring period (March 24, 2024) are shown in Table 9.

[0120] Table 9. Values ​​of deep horizontal displacement within the depth range of the CX10 foundation pit.

[0121]

[0122] The angle between the guide trench and the perpendicular line to the edge of the foundation pit, measured on-site using a vernier angle gauge. β It is 12.5°.

[0123] Angle correction is performed according to formula (3). The data is shown in Table 10.

[0124] Table 10. Values ​​of Deep Horizontal Displacement after Angle Correction for CX10

[0125]

[0126] The horizontal displacement of the pile top measured by a two-dimensional laser displacement meter is 35.24 mm.

[0127] The absolute displacement value of 0-14.5m is calculated by back-calculating formulas (1) and (2), and the calculation results are shown in Table 11.

[0128] Table 11. Values ​​of deep horizontal displacement within the depth range of the CX10 foundation pit.

[0129]

[0130] The error is then calculated according to formula (5):

[0131]

[0132] Based on the calculation formula in Table 2, the error distribution coefficient and the monitoring point error are calculated as shown in Table 12.

[0133] Table 12 CX10 Error Calculation Table

[0134]

[0135] The final deformation value obtained according to formula (8) As shown in Table 13.

[0136] Table 13: Final Deformation Summary of CX10 Monitoring Points

[0137]

[0138] The calculation results show that when the starting depth is above the bottom of the foundation pit, the error in the deep horizontal displacement is large, and the calculated final deformation value differs significantly from the original measurement data.

[0139] The above combination Figure 1 The deep horizontal displacement correction method based on the starting depth of the inclinometer tube provided in the embodiments of the present invention has been described in detail. Next, the deep horizontal displacement correction system based on the starting depth of the inclinometer tube provided in the embodiments of the present invention will be described in conjunction with the accompanying drawings.

[0140] Figure 3 This is a schematic diagram of the deep horizontal displacement correction system based on the starting depth of the inclinometer tube, as shown in an embodiment of the present invention. (Refer to...) Figure 3 The system described in this invention includes:

[0141] The first working condition module is configured to: if the starting depth is the bottom of the inclinometer tube, obtain the corrected deep horizontal displacement value at the inclinometer tube opening, and calculate the first difference between the corrected deep horizontal displacement value at the inclinometer tube opening and the absolute value of the horizontal displacement at the inclinometer tube opening.

[0142] The second working condition module is configured to: if the starting depth is not the bottom of the inclinometer tube, obtain the deep horizontal displacement value at the bottom of the inclinometer tube after correction; calculate the second difference between the deep horizontal displacement value at the bottom of the inclinometer tube after correction and the absolute value of the horizontal displacement at the bottom of the inclinometer tube.

[0143] The final displacement determination module is configured to: calculate the shear strength of each soil layer; allocate a first difference or a second difference to each soil layer based on the reciprocal of the shear strength to obtain a first allocation error; determine a second allocation error for each monitoring point of each soil layer based on the number of monitoring points contained in each soil layer and the first allocation error; and obtain the final absolute value of the displacement of each monitoring point based on the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point.

[0144] In some embodiments, the shear strength of each soil layer is calculated using the following formula:

[0145]

[0146] in, Indicates the shear strength of the j-th soil layer; This represents the cohesion of the j-th soil layer; This represents the normal stress on the j-th soil layer; This represents the internal friction angle of the j-th soil layer.

[0147] In some embodiments, the first allocation error is obtained by distributing the first difference or the second difference to each soil layer based on the reciprocal of the shear strength; this is expressed by the following formula:

[0148]

[0149] in, Indicates the first allocation error; This represents the shear strength of the m-th soil layer; Indicates the shear strength of the j-th soil layer; This indicates the first or second difference.

[0150] In some embodiments, the final absolute value of displacement of each monitoring point is obtained based on the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point; expressed by the following formula:

[0151]

[0152] in, Indicates the first i The final absolute value of the displacement of each monitoring point; This represents the second allocation error for each monitoring point; Indicates the first allocation error; This indicates the number of monitoring points for each soil layer.

[0153] In some embodiments, if the starting depth is the bottom of the inclinometer tube, the deep horizontal displacement value at the inclinometer tube opening after correction is obtained; this includes: if the starting depth is the bottom of the inclinometer tube, obtaining the deep horizontal displacement values ​​of all monitoring points, and performing angle correction on the deep horizontal displacement values ​​of all monitoring points to obtain the corrected deep horizontal displacement values ​​of all monitoring points; and extracting the corrected deep horizontal displacement value at the inclinometer tube opening.

[0154] If the starting depth is not the bottom of the inclinometer tube, then obtain the deep horizontal displacement value at the bottom of the inclinometer tube after correction; including: if the starting depth is not the bottom of the inclinometer tube, obtain the deep horizontal displacement value of all monitoring points, and perform angle correction on the deep horizontal displacement value of all monitoring points to obtain the corrected deep horizontal displacement value of all monitoring points; extract the corrected deep horizontal displacement value at the bottom of the inclinometer tube.

[0155] In some embodiments, the process of obtaining the absolute value of the horizontal displacement at the bottom of the inclinometer tube includes: measuring the absolute value of the horizontal displacement at the inclinometer tube opening using a two-dimensional laser displacement meter, and calculating the absolute value of the horizontal displacement at the bottom of the inclinometer tube from the opening to the bottom based on the absolute value of the horizontal displacement at the inclinometer tube opening.

[0156] According to embodiments of the present invention, the deep horizontal displacement correction system based on the inclinometer starting depth can correspond to the execution of the method described in the embodiments of the present invention, and the above and other operations and / or functions of each module of the deep horizontal displacement correction system based on the inclinometer starting depth are respectively for implementing Figure 1 For the sake of brevity, the corresponding processes of each method in the code will not be elaborated here.

[0157] See Figure 4The diagram shows the structure of a computer device, which includes a processor, a communication interface, and a computer-readable storage medium. The processor, communication interface, and computer-readable storage medium are connected via a bus or other means. The communication interface is used to receive and send data. The computer-readable storage medium can be stored in the computer device's memory. The computer-readable storage medium stores computer programs, including program instructions, and the processor executes the program instructions stored in the computer-readable storage medium. The processor (or CPU, Central Processing Unit) is the computing and control core of the computer device, suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions to implement the corresponding steps in the embodiment of the deep horizontal displacement correction method based on the inclinometer starting depth.

[0158] This embodiment provides a computer-readable storage medium (Memory), which is a memory device in a computer device used to store programs and data. It is understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and extended storage media supported by the computer device. The computer-readable storage medium provides storage space that stores the processing system of the computer device.

[0159] Furthermore, this storage space also contains one or more instructions suitable for loading and execution by the processor. These instructions can be one or more computer programs (including program code). It should be noted that the computer-readable storage medium here can be high-speed RAM memory or non-volatile memory, such as at least one disk storage device; optionally, it can also be at least one computer-readable storage medium located remotely from the aforementioned processor.

[0160] In one embodiment, the computer-readable storage medium stores one or more instructions; the processor loads and executes one or more instructions stored in the computer-readable storage medium to implement the corresponding steps in the above embodiment of the deep horizontal displacement correction method based on the inclinometer starting depth.

[0161] This embodiment provides a computer program product or computer program that includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the corresponding steps in the above embodiment of the deep horizontal displacement correction method based on the inclinometer starting depth.

[0162] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0163] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, systems, and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0164] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0165] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0166] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0167] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for correcting deep horizontal displacement based on the starting depth of an inclinometer, characterized in that, include: If the starting depth is the bottom of the inclinometer tube, then obtain the corrected deep horizontal displacement value at the inclinometer tube opening, and calculate the first difference between the corrected deep horizontal displacement value at the inclinometer tube opening and the absolute value of the horizontal displacement at the inclinometer tube opening. If the starting depth is not the bottom of the inclinometer tube, then obtain the deep horizontal displacement value at the bottom of the corrected inclinometer tube. Calculate the second difference between the corrected deep horizontal displacement value at the bottom of the inclinometer tube and the absolute value of the horizontal displacement at the bottom of the inclinometer tube; Calculate the shear strength of each soil layer, and allocate the first or second difference to each soil layer according to the reciprocal of the shear strength to obtain the first allocation error; determine the second allocation error of each monitoring point in each soil layer according to the number of monitoring points in each soil layer and the first allocation error; obtain the final absolute value of displacement of each monitoring point according to the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point. The shear strength of each soil layer is calculated using the following formula: in, Indicates the shear strength of the j-th soil layer; This represents the cohesion of the j-th soil layer; This represents the normal stress on the j-th soil layer; Indicates the internal friction angle of the j-th soil layer; The first allocation error is obtained by distributing the first or second difference to each soil layer based on the reciprocal of the shear strength; this is expressed by the following formula: in, Indicates the first allocation error; This represents the shear strength of the m-th soil layer; Indicates the shear strength of the j-th soil layer; Indicates the first difference or the second difference; The final absolute displacement value of each monitoring point is obtained based on the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point; expressed by the following formula: in, Indicates the first i The final absolute value of the displacement of each monitoring point; This represents the deep horizontal displacement deformation value after angle correction; This represents the second allocation error for each monitoring point; Indicates the first allocation error; This indicates the number of monitoring points for each soil layer.

2. The deep horizontal displacement correction method based on the starting depth of the inclinometer tube according to claim 1, characterized in that, If the starting depth is the bottom of the inclinometer tube, then obtain the corrected deep horizontal displacement value at the inclinometer tube opening; the method includes: if the starting depth is the bottom of the inclinometer tube, then obtain the deep horizontal displacement values ​​of all monitoring points, and perform angle correction on the deep horizontal displacement values ​​of all monitoring points to obtain the corrected deep horizontal displacement values ​​of all monitoring points; extract the corrected deep horizontal displacement value at the inclinometer tube opening; If the starting depth is not the bottom of the inclinometer tube, the deep horizontal displacement value at the bottom of the inclinometer tube after correction is obtained. The method includes: if the starting depth is not the bottom of the inclinometer tube, the deep horizontal displacement value of all monitoring points is obtained, and the deep horizontal displacement value of all monitoring points is corrected by angle to obtain the corrected deep horizontal displacement value of all monitoring points; the deep horizontal displacement value at the bottom of the inclinometer tube after correction is extracted.

3. The deep horizontal displacement correction method based on the starting depth of the inclinometer tube according to claim 1, characterized in that, The process of obtaining the absolute value of the horizontal displacement at the bottom of the inclinometer tube includes: measuring the absolute value of the horizontal displacement at the inclinometer tube opening using a two-dimensional laser displacement meter; and calculating the absolute value of the horizontal displacement at the bottom of the inclinometer tube from the opening to the bottom based on the absolute value of the horizontal displacement at the inclinometer tube opening.

4. A deep horizontal displacement correction system based on the starting depth of an inclinometer, characterized in that, The method for correcting deep horizontal displacement based on the starting depth of an inclinometer tube, as described in any one of claims 1-3, includes: The first working condition module is configured to: if the starting depth is the bottom of the inclinometer tube, obtain the corrected deep horizontal displacement value at the inclinometer tube opening, and calculate the first difference between the corrected deep horizontal displacement value at the inclinometer tube opening and the absolute value of the horizontal displacement at the inclinometer tube opening. The second working condition module is configured to: if the starting depth is not the bottom of the inclinometer tube, obtain the deep horizontal displacement value at the bottom of the inclinometer tube after correction; calculate the second difference between the deep horizontal displacement value at the bottom of the inclinometer tube after correction and the absolute value of the horizontal displacement at the bottom of the inclinometer tube. The final displacement determination module is configured to: calculate the shear strength of each soil layer; allocate a first difference or a second difference to each soil layer based on the reciprocal of the shear strength to obtain a first allocation error; determine a second allocation error for each monitoring point of each soil layer based on the number of monitoring points contained in each soil layer and the first allocation error; and obtain the final absolute value of the displacement of each monitoring point based on the corrected deep horizontal displacement value of each monitoring point and the second allocation error of that monitoring point.

5. A computer device, characterized in that, include: A processor, adapted to execute computer programs; A computer-readable storage medium storing a computer program, which, when executed by the processor, implements the steps of the deep horizontal displacement correction method based on the inclinometer starting depth as described in any one of claims 1-3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program adapted to be loaded by a processor and to execute the steps of the deep horizontal displacement correction method based on the inclinometer starting depth as described in any one of claims 1-3.

7. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps in the deep horizontal displacement correction method based on the inclinometer starting depth as described in any one of claims 1-3.

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