Safety evaluation method of anchoring engineering and safety design method of new anchoring engineering

Abstract

The present invention relates to a method for evaluating the safety of anchoring projects and a method for designing the safety of newly built anchoring projects. One of the methods for evaluating the safety of anchoring projects is: obtaining the service time, design life, safety index design requirements and safety index after service time of the anchoring project, as well as the durability time of the anchoring structure on the anchoring project; evaluating the safety of the anchoring project based on the service time of the anchoring project, the relationship between the durability time of the anchoring structure and the design life, and the relationship between the safety index after the service time of the anchoring project and the safety index design requirements; the method for obtaining the durability time of the anchoring structure includes: obtaining the design cross-sectional diameter, material parameters and environmental variables of the anchoring mechanism in the anchoring structure; calculating the durability time of the anchoring mechanism based on the design cross-sectional diameter, material parameters and environmental variables of the anchoring mechanism; determining the durability time of the anchoring structure based on the durability time of the anchoring mechanism. The present invention is applicable to the field of geotechnical anchoring projects.

Description

Technical Field

[0001] The invention relates to an anchoring engineering safety evaluation method and a new anchoring engineering safety design method, and is applicable to the field of rock and soil anchoring engineering. Background Art

[0002] Geotechnical prestressed anchor rods and cables are widely used in civil engineering, water conservancy and hydropower, and construction projects, playing a good role in reinforcing and maintaining the stability of rock and soil and structures. my country began to use anchor cables in the 1960s, and in the past 30 years, my country's geotechnical anchoring technology has flourished. Prestressed anchoring projects are not a one-time solution. During long-term service, their mechanical stability and chemical stability change with the environment and time. In foreign countries where prestressed anchor cables were used earlier, many cases of anchor cable failure have occurred. Therefore, it is necessary to make an effective evaluation of the long-term safety of anchoring structures and anchoring projects, evaluate the service status of anchoring projects, and reasonably give the timing of reinforcement treatment, which is of great significance to ensure the safe operation of anchoring projects.

[0003] At present, there are many understandings of the causes of anchor structure failure, including electrochemical corrosion, chemical corrosion, stress corrosion and hydrogen embrittlement. The anchor structure material, environmental pH, corrosive ion content, stray current, and anti-corrosion design and construction methods adopted will affect the durability of the anchor structure. However, there is no effective evaluation method for the safety evaluation of anchor structures and anchor projects. The existing methods are basically based on monitoring and detection data, and most indicators require destructive tests to obtain, which is not conducive to the safety and stability of reinforced rock and soil. In addition, the evaluation method cannot be connected with the current specifications, which is not conducive to our inheritance of the scientific knowledge and experience accumulated in the project. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the above-mentioned existing problems, a method for evaluating the safety of anchoring projects and a method for designing the safety of newly built anchoring projects are provided.

[0005] The technical solution adopted by the present invention is: a method for evaluating the safety of anchoring engineering, characterized in that:

[0006] Obtain the service time t, design life A, and safety index design requirements K of the anchoring project 0 and the safety index K after service time t t , and the durability time t of the anchor structure in the anchor project m ;

[0007] Based on the service time t of the anchoring project and the durability time t of the anchoring structure m The relationship between the design life A and the safety index K of the anchoring project after service time t tDesign requirements for safety indicators K 0 The relationship between the evaluation of anchoring engineering safety;

[0008] The anchor structure durability time t m Methods for obtaining include:

[0009] Get the design cross-sectional diameter D of the anchor mechanism in the anchor structure 0 , material parameters K gi and environment variable S gi , i is a positive integer from 1 to n;

[0010] Design section diameter D based on anchoring mechanism 0 , material parameters K gi and environment variable S gi Calculate the durability time t of the anchoring mechanism g ;

[0011] Durability time t based on anchoring mechanism g Determine the durability time t of the anchor structure m .

[0012] The anchor structure durability time t m The method for obtaining , further includes:

[0013] Get the design thickness H of each layer in the n-layer anti-corrosion structure wrapped outside the anchoring mechanism in the anchoring structure 0i , material parameters K pij and environment variable S pij , i is a positive integer from 1 to n, j is a positive integer from 1 to m, and m is the number of environmental variables that affect the durability of the i-th layer of anti-corrosion structure;

[0014] Design thickness H based on anti-corrosion structure 0i , material parameters K pij and environment variable S pij Calculate the durability time t of the anti-corrosion structure pi ;

[0015] Durability time t based on anchoring mechanism g and the durability time t of the n-layer anti-corrosion structure pi Calculate the durability time t of the anchor structure m .

[0016] The environmental variable S of the anchoring mechanism gi Including the pH value of the environment, chloride ion content, sulfate ion content, hydroxide ion content and stray current density, etc.

[0017] The safety index of the anchoring project is to meet the safety index design requirements for the safe operation of the anchoring project, such as: slope anti-sliding stability safety factor, slope anti-tilt stability safety factor, block stability safety factor, etc.

[0018] A new anchoring engineering safety design method, characterized by:

[0019] Obtain the design life A of the new anchoring project and the material parameter K of the anchoring mechanism in the anchoring structure of the anchoring project gi and environment variable S gi ;

[0020] Durability time t based on anchoring mechanism g , material parameters K gi and environment variable S gi Calculate the design cross-sectional diameter D of the anchor windlass mechanism 0 ; Calculate the safety factor K of the anchoring project at the beginning of service s , the safety factor K of the anchoring project after reaching the design life t＝A .

[0021] The durability time t of the anchoring mechanism g Durability time t based on anchor structure m Determine, and the durability time t of the anchor structure m ≥ Design life of anchoring project A, design safety index of anchoring project K s ≥ Safety index design requirements for anchoring projects K 0 , the safety index K of the anchoring project after reaching the design life A t ≥Safety index design requirements K 0 .

[0022] A new anchoring engineering safety design method, characterized by:

[0023] Obtain the design life A of the new anchoring project and the material parameters K of the anchoring mechanism in the anchoring structure of the anchoring project gi and environment variable S gi , and the design thickness H of each layer in the n-layer anti-corrosion structure wrapped outside the anchoring mechanism 0i , material parameters K pij and environment variable S pij , i is a positive integer from 1 to n, j is a positive integer from 1 to m, and m is the number of environmental variables that affect the durability of the i-th layer of anti-corrosion structure;

[0024] Durability time t based on anchoring mechanism g , material parameters K gi and environment variable S gi Calculate the design cross-sectional diameter D of the anchoring mechanism0 ; Calculate the safety factor K of the anchoring project at the beginning of service s , the safety factor K of the anchoring project after reaching the design life t＝A .

[0025] The durability time t of the anchoring mechanism g Durability time t based on anchor structure m And the durability time of the anti-corrosion structure t pi Determine, and the durability time t of the anchor structure m ≥ Design life of anchoring project A, design safety index of anchoring project K s ≥ Safety index design requirements for anchoring projects K 0 , the safety index K of the anchoring project after reaching the design life A t ≥Safety index design requirements K 0 ;

[0026] The durability time t of the anti-corrosion structure pij Design thickness H based on anti-corrosion structure 0i , material parameters K pij and environment variable S pij Calculated.

[0027] An anchoring engineering safety evaluation device, characterized in that:

[0028] Parameter acquisition module, used to obtain the service time t, design life A, and safety index design requirements K of the anchoring project 0 and the safety index K after service time t t , and the durability time t of the anchor structure in the anchor project m ;

[0029] Safety evaluation module, used to evaluate the service life of anchoring engineering based on the service time t and durability time t of anchoring structure. m The relationship between the design life A and the safety index K of the anchoring project after service time t t Design requirements for safety indicators K 0 The relationship between the evaluation of anchoring engineering safety;

[0030] The anchor structure durability time t m Methods for obtaining include:

[0031] Get the design cross-sectional diameter D of the anchor mechanism in the anchor structure 0 , material parameters K gi and environment variable S gi ;

[0032] Design section diameter D based on anchoring mechanism 0 , material parameters Kgi and environment variable S gi Calculate the durability time t of the anchoring mechanism g ;

[0033] Durability time t based on anchoring mechanism g Determine the durability time t of the anchor structure m .

[0034] The anchor structure durability time t m The method for obtaining , further includes:

[0035] Get the design thickness H of each layer in the n-layer anti-corrosion structure wrapped outside the anchoring mechanism in the anchoring structure 0i , material parameters K pij and environment variable S pij , i is a positive integer from 1 to n, j is a positive integer from 1 to m, and m is the number of environmental variables that affect the durability of the i-th layer of anti-corrosion structure;

[0036] Design thickness H based on anti-corrosion structure 0i , material parameters K pij and environment variable S pij Calculate the durability time t of the anti-corrosion structure pi ;

[0037] Durability time t based on anchoring mechanism g and the durability time t of the n-layer anti-corrosion structure pi Calculate the durability time t of the anchor structure m .

[0038] A storage medium stores a computer program executable by a processor, wherein the computer program implements the steps of the method when executed.

[0039] A computer device comprises a memory and a processor, wherein the memory stores a computer program executable by the processor, and wherein the computer program implements the steps of the method when executed.

[0040] The beneficial effects of the present invention are as follows: the present invention obtains the durability time of the anchoring mechanism based on the functional relationship between the material parameters of the anchoring mechanism, environmental variables, time and the cross-sectional diameter of the anchoring mechanism after a certain period of service, as well as the cross-sectional diameter of the anchoring mechanism corresponding to the design tensile strength of the anchoring mechanism, and evaluates the safety of the anchoring project based on the durability time, service time, design life, safety indicators, etc., to form an effective evaluation method for the safety of the anchoring project.

[0041] The present invention uses the anchor engineering safety evaluation method to reversely calculate the design cross-sectional diameter D of the anchor machine mechanism when designing a new anchor engineering. 0And other relevant design parameters to ensure the safety of new anchoring projects. DETAILED DESCRIPTION

[0042] Embodiment 1: This embodiment is a method for evaluating the safety of an anchoring project, which specifically comprises the following steps:

[0043] S1. Obtain the service time t, design life A, and safety index design requirements K of the anchoring project 0 (e.g., slope anti-sliding stability safety factor, slope anti-tilting stability safety factor, block stability safety factor, etc.) and the safety index K after service time t t , and the durability time t of the anchor structure in the anchor project m .

[0044] In this example, the anchoring structure has an anchoring mechanism, which is an anchor rod, an anchor cable, etc. The durability time of the anchoring structure is t m Methods for obtaining include:

[0045] S1-1. Obtain the design cross-sectional diameter D of the anchor mechanism in the anchor structure 0 , material parameters K gi and environment variable S gi , where the material parameter K gi Related to the steel material properties of the anchoring mechanism; environmental variable S gi Including the pH value of the environment where the anchoring mechanism is located, the chloride ion content R Cl- , sulfate ion content Hydroxide ion content Stray current density J and other environmental variables S of the surrounding environment.

[0046] S1-2. Design section diameter D based on anchoring mechanism 0 , material parameters K gi and environment variable S gi Calculate the durability time t of the anchoring mechanism g .

[0047] The durability characteristics of the anchoring mechanism steel can be described by the following function:

[0048] G(dD,K gi , S gi , C, t) = 0

[0049] Where dD is the loss of diameter of the anchoring mechanism after service time t, dD = D 0 -D t ; C is a constant.

[0050] For example, suppose there is a pit on the surface of the steel bar with a width of c; within the width c, the steel bar is corroded on the entire circumference.

[0051] The initial diameter of the steel bar is D 0 Corroded to equivalent diameter D t When the mass loss of the steel bar is:

[0052]

[0053] Here, ρ is the density of iron.

[0054] According to Faraday's law, the corrosion mass loss of steel bars is:

[0055]

[0056] Where M is the molar mass of iron, n A is the number of electrons reacting, F is the Faraday constant, and I is the current intensity.

[0057] Then we have:

[0058]

[0059] After service time t, the cross-sectional diameter D of the anchoring mechanism t It is a function of material parameters, environmental variables and time. When t = 0, D t =D 0 . can be written as:

[0060] Dt=Y(D 0 , K gi , S gi , C, t)

[0061] Then, the corrosion rate a can be defined as:

[0062]

[0063] Service 1 After time, the equivalent diameter of the anchoring mechanism is:

[0064]

[0065] Sometimes only the corrosion rate is known, but the specific corrosion function is unknown. In this case, the corrosion rate needs to be used to calculate the equivalent diameter after service time t.

[0066] The anchor mechanism is subjected to the tensile force F 0 The condition for continuing to safely bear the load is that the stress on the section is less than the design value of the tensile strength f yt Based on this, it is determined that when subjected to the tensile force F 0 Minimum safety value D of the cross-sectional area of ​​the lower anchoring mechanism y and the cross-sectional diameter of the anchoring mechanism is from D 0 Corrosion to Dy The time is used as the durability time t of the anchoring mechanism. g Specifically, the formula is as follows:

[0067]

[0068] Solve the above formula to obtain the safe bearing time (durability time t) of the anchoring mechanism. g )

[0069] S1-3. In this embodiment, no anti-corrosion structure is provided on the anchoring mechanism of the anchoring structure. Therefore, the durability time t of the anchoring mechanism g is used as the durability time t of the anchoring structure. m .

[0070] S2. Based on the relationship between the service time t of the anchoring project, the durability time t of the anchoring structure m and the design life A, as well as the safety index K of the anchoring project after serving for t time t and the design requirement K of the safety index 0 , evaluate the safety of the anchoring project.

[0071] I. When t ≤ A:

[0072] A. t m ≥ A, and K t ≥ K 0 , the anchoring project is safe within the design life A.

[0073] B. t m < A, and K t ≥ K 0 , the anchoring project is safe currently, but within the design life A of the anchoring project, the durability of the anchoring structure does not meet the requirements and must be treated.

[0074] C. t m < A, and K t < K 0 , the safety index of the anchoring project no longer meets the requirements and reinforcement must be carried out immediately.

[0075] II. When t > A:

[0076] At this time, the service life of the anchoring project has exceeded the design life, and the safety of the anchoring project should be evaluated regularly.

[0077] A. t m ≥ t, and K t ≥ K 0 , the anchoring project is safe.

[0078] B. t m < t, and K t ≥ K0 , the anchoring project is currently safe, but the anchoring structure can no longer serve normally and must be treated.

[0079] C.t m <t, and K t <K 0 , the safety of the anchoring project is insufficient, and it is necessary to immediately reinforce and strengthen it or take other treatment measures.

[0080] This embodiment also provides a safety evaluation device for an anchoring project, including a parameter acquisition module and a safety evaluation module. The parameter acquisition module is used to acquire the service time t, design life A, and safety index design requirement K of the anchoring project 0 and the safety index K after serving for t time t , as well as the durability time t of the anchoring structure on the anchoring project m ; The safety evaluation module is used to evaluate the safety of the anchoring project based on the relationship between the service time t of the anchoring project, the durability time t of the anchoring structure m and the design life A, and the relationship between the safety index K after the anchoring project has served for t time t and the safety index design requirement K 0 .

[0081] This embodiment also provides a storage medium, on which a computer program executable by a processor is stored. When the computer program is executed, the steps of the safety evaluation method for the anchoring project in this example are implemented.

[0082] This embodiment also provides a computer device, which has a memory and a processor. A computer program executable by the processor is stored on the memory. When the computer program is executed, the steps of the safety evaluation method for the anchoring project in this example are implemented.

[0083] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that in this example, the anchoring mechanism is wrapped with n layers of anti-corrosion structures such as bellows and PE sleeves.

[0084] The durability time t of the anchoring structure in this embodiment m is calculated based on the durability time t of the anchoring mechanism g and the durability time t of the n-layer anti-corrosion structure pi .

[0085] The method for obtaining the durability time t of the n-layer anti-corrosion structure in this example pi includes:

[0086] A. Obtain the designed thickness H of each layer i in the n-layer anti-corrosion structure wrapped outside the anchoring mechanism in the anchoring structure 0i , material parameter K pij and environmental variable S pij, i is a positive integer from 1 to n, j is a positive integer from 1 to m, and m is the number of environmental variables that affect the durability of the i-th layer of anti-corrosion structure.

[0087] B. Design thickness H based on the i-th layer of anti-corrosion structure 0i , material parameters K pij and environment variable S pij Calculate the durability time t of the anti-corrosion structure pi .

[0088] Assume that the durability of the i-th layer of anti-corrosion structure can be described by the following function:

[0089] P i (H i , K pij ,t,S pij , C)=0

[0090] Among them, H i is the thickness of the i-th layer of anti-corrosion structure; C is a constant.

[0091] It can be seen that the thickness of the anti-corrosion material is a function of material parameters, environmental variables and time, which can be written as:

[0092] H i =Q(K pij , S pij , t, C)

[0093] Then, the corrosion rate b can be defined as:

[0094]

[0095] Service 1 After a certain period of time, the equivalent thickness of the anti-corrosion structure is:

[0096]

[0097] The inverse function of t to H is:

[0098] t=Q -1 (K pij , H i , S pij )

[0099] Calculate the above formula and get the design thickness H of the corrosion structure from the anti-corrosion structure. 0i The time of complete corrosion is taken as the durability time t of the anti-corrosion structure. pi .

[0100] In this embodiment, the anchoring structure (including the anchoring structure and the anti-corrosion structure) has a durability time t m , described by the following formula:

[0101]

[0102] This embodiment also provides a storage medium on which a computer program that can be executed by a processor is stored. When the computer program is executed, the steps of the new anchoring project safety design method in this example are implemented.

[0103] This embodiment also provides a computer device having a memory and a processor, wherein the memory stores a computer program that can be executed by the processor, and when the computer program is executed, the steps of the new anchoring project safety design method in this example are implemented.

[0104] Example 3: This example is a safety design method for a new anchoring project. The anchoring project safety evaluation method of Example 1 is used to reversely design and select the design cross-sectional diameter D of the anchoring mechanism. 0 , so that the anchoring project meets three conditions at the same time:

[0105] (1) Durability of anchoring structure m Greater than the design life of the anchoring project A, t m ≥A.

[0106] (2) Design safety index K of anchoring engineering s (When the service begins, the safety index of the anchoring project can also be recorded as K t＝0 ) is greater than the safety index design requirement K of the anchoring project 0 , K s ≥K 0 .

[0107] (3) Safety index K of anchoring project after reaching design life A t Still greater than or equal to the safety index design requirement K 0 , K t＝A ≥K 0 .

[0108] The specific steps include:

[0109] S1. Obtain the design life requirement A of the new anchoring project and the material parameter K of the anchoring structure gi and environment variable S gi ; Select the design cross-sectional diameter D of the anchoring mechanism 0 .

[0110] S1-1. Calculate whether the anchoring project meets the most basic safety index requirements K 0 When the anchor mechanism must provide a support force F t , in order to determine the minimum equivalent diameter D of the anchor structure when the anchor project reaches the design life A t＝A .

[0111] In order to avoid hydrogen embrittlement and other damages that endanger the service life of the anchor structure, only partial strength is used for design, and βf is selected t and f yt The design is based on the minimum value of t is the ultimate tensile strength of the anchor structure reinforcement, β is the utilization rate, f yt is the design value of tensile strength.

[0112] βf t ≤f yt hour,

[0113]

[0114] βf t >f yt hour,

[0115]

[0116] S1-2. According to the material parameter K of the anchoring structure gi and environment variable S gi , calculate the reduction in the diameter of the anchor structure ΔD when the anchor project reaches the design life A, and select the design section diameter D of the anchor structure 0 .

[0117]

[0118] S2. According to the design section diameter D of the selected anchor structure 0 , check the durability of the anchor structure t m , calculate the safety factor K of the anchoring project at the beginning of service s , the safety factor K of the anchoring project after reaching the design life t＝A If the requirements are not met, increase the design section diameter D 0 , until the requirements are met.

[0119] In this embodiment, the durability time t of the anchor mechanism is g As the durability time of the anchor structure t m , and the durability time of the anchor structure is t m ≥ Design life of anchoring project A, design safety index of anchoring project K s ≥ Safety index design requirements for anchoring projects K 0 , the safety index K of the anchoring project after reaching the design life A t ≥Safety index design requirements K 0 .

[0120] This embodiment also provides a storage medium on which a computer program that can be executed by a processor is stored. When the computer program is executed, the steps of the new anchoring project safety design method in this example are implemented.

[0121] This embodiment also provides a computer device having a memory and a processor, wherein the memory stores a computer program that can be executed by the processor, and when the computer program is executed, the steps of the new anchoring project safety design method in this example are implemented.

[0122] Example 4: This example is a safety design method for a new anchoring project. This example is basically the same as Example 3, except that in this example, the anchoring mechanism is wrapped with a corrugated pipe, a PE sleeve, and other layers of anti-corrosion structures. The specific method includes:

[0123] Obtain the design life A of the new anchoring project and the material parameters K of the anchoring mechanism in the anchoring structure of the anchoring project gi and environment variable S gi , and the design thickness H of each layer in the n-layer anti-corrosion structure wrapped outside the anchoring mechanism 0i , material parameters K pij and environment variable S pij , i is a positive integer from 1 to n, j is a positive integer from 1 to m, and m is the number of environmental variables that affect the durability of the i-th layer of anti-corrosion structure;

[0124] Select the anti-corrosion measures for the anchor structure, according to the design thickness H of each layer of anti-corrosion structure. 0i , material parameters K pij and environment variable S pij , determine its durability t pi .

[0125] Durability time t based on anti-corrosion structure pi , material parameters K pij and environment variable S pij Calculate and select the design section diameter D of the anchoring mechanism 0 .

[0126]

[0127] According to the design section diameter D of the selected anchor structure 0 And the H of each layer of anti-corrosion structure 0i , check the durability of the anchor structure t m , calculate the safety factor K of the anchoring project at the beginning of service s , the safety factor K of the anchoring project after reaching the design life t＝A If the requirements are not met, increase the design section diameter D 0 or / and H of each layer of anti-corrosion structure 0i, until the requirements are met.

[0128] In this case, the durability time t of the anchor structure m Durability time t based on anchoring mechanism g And the durability time of the anti-corrosion structure t pi Determine, and the durability time t of the anchor structure m ≥ Design life of anchoring project A, design safety index of anchoring project K s ≥ Safety index design requirements for anchoring projects K 0 , the safety index K of the anchoring project after reaching the design life A t ≥Safety index design requirements K 0 ; Durability time of anti-corrosion structure t pi Design thickness H based on anti-corrosion structure 0i , material parameters K pij and environment variable S pij Calculated.

[0129] This embodiment also provides a storage medium on which a computer program that can be executed by a processor is stored. When the computer program is executed, the steps of the new anchoring project safety design method in this example are implemented.

[0130] This embodiment also provides a computer device having a memory and a processor, wherein the memory stores a computer program that can be executed by the processor, and when the computer program is executed, the steps of the new anchoring project safety design method in this example are implemented.

Claims

1. A method for evaluating the safety of anchoring engineering. Features: Get the service time of the anchoring project t , Design life A , Safety index design requirements K 0 and serving t Safety indicators after time K t , and the durability of the anchor structure on the anchor project t m ; Based on the service time of the anchoring project t , Anchor structure durability time t m Design life A The relationship between anchoring engineering and service t Safety indicators after time K t Design requirements for safety indicators K 0 The relationship between the evaluation of anchoring engineering safety; Durability of the anchoring structure t m Methods for obtaining include: Get the design cross-sectional diameter of the anchor mechanism in the anchor structure D 0 , Material parameters K gi and environment variables S gi ; Design section diameter based on anchoring mechanism D 0 , Material parameters K gi and environment variables S gi Calculation of the durability time of the anchoring mechanism t g ; Durability based on anchoring mechanism t g Determine the durability of the anchor structure t m ; Durability of the anchoring structure t m The method for obtaining , further includes: Get the anchor structure wrapped outside the anchor mechanism n Design thickness of each layer in the layer anti-corrosion structure H 0i , Material parameters K pij and environment variables S pij , i 1~ n A positive integer, j 1~ m A positive integer, m To influence the i The number of environmental variables affecting the durability of the layer anti-corrosion structure; Design thickness based on anti-corrosion structure H 0i , Material parameters K pij and environment variables S pij Calculation of the durability of anti-corrosion structures t pi ; Durability based on anchoring mechanism t g and n Durability of anti-corrosion structure t pi Calculate the durability time of the anchor structure t m .

2. The anchoring engineering safety evaluation method according to claim 1, Features: Environmental variables of the anchoring mechanism S gi Including the pH value of the environment, chloride ion content, sulfate ion content, hydroxide ion content and stray current density.

3. The anchoring engineering safety evaluation method according to claim 1, Features: The safety index of the anchoring project is to meet the safety index design requirements for the safe operation of the anchoring project.

4. A safety design method for new anchoring projects. Features: Get the design life of the new anchoring project A , the material parameters of the anchoring mechanism in the anchoring structure of the anchoring project K gi and environment variables S gi , and wrapped outside the anchoring mechanism n Design thickness of each layer in the layer anti-corrosion structure H 0i , Material parameters K pij and environment variables S pij , i 1~ n A positive integer, j 1~ m A positive integer, m To influence the i The number of environmental variables affecting the durability of the layer anti-corrosion structure; Durability based on anchoring mechanism t g , Material parameters K gi and environment variables S gi Calculate the design section diameter of the windlass mechanism D 0 ; Based on anchoring mechanism D 0 2. Design life of anchoring project A , calculate the design safety index of anchoring engineering K s , and the anchoring project reaches the design life A Safety indicators after K t; Durability of the anchoring mechanism t g Durability of anchor structure t m And the durability of anti-corrosion structure t pi Determine that if the following three conditions are met at the same time, the durability time of the anchor structure t m ≥ Design life of anchoring project A , design safety index of anchoring engineering K s ≥ Safety index design requirements for anchoring projects K 0 , the anchoring project has reached its design life A Safety indicators after K t ≥Safety index design requirements K 0 ; Durability of the anti-corrosion structure t pi Design thickness based on anti-corrosion structure H 0i , Material parameters K pij and environment variables S pij Calculated.

5. An anchoring engineering safety evaluation device, Features: Parameter acquisition module, used to obtain the service time of the anchoring project t , Design life A , Safety index design requirements K 0 and serving t Safety indicators after time K t , and the durability of the anchor structure in the anchor project t m ; Safety evaluation module for anchoring works based on their service life t , Durability of anchoring structure t m Design life A The relationship between anchoring engineering and service t Safety indicators after time K t Design requirements for safety indicators K 0 The relationship between the evaluation of anchoring engineering safety; Durability of the anchoring structure t m Methods for obtaining include: Get the design cross-sectional diameter of the anchor mechanism in the anchor structure D 0 , Material parameters K gi and environment variables S gi ; Design section diameter based on anchoring mechanism D 0 , Material parameters K gi and environment variables S gi Calculation of the durability time of the anchoring mechanism t g ; Durability based on anchoring mechanism t g Determine the durability of the anchor structure t m ; Durability of the anchoring structure t m The method for obtaining , further includes: Get the anchor structure wrapped outside the anchor mechanism n Design thickness of each layer in the layer anti-corrosion structure H 0i , Material parameters K pij and environment variables S pij , i 1~ n A positive integer, j 1~ m A positive integer, m To influence the i The number of environmental variables affecting the durability of the layer anti-corrosion structure; Design thickness based on anti-corrosion structure H 0i , Material parameters K pij and environment variables S pij Calculation of the durability of anti-corrosion structures t pi ; Durability based on anchoring mechanism t g and n Durability of anti-corrosion structure t pi Calculate the durability time of the anchor structure t m .

6. A storage medium having stored thereon a computer program executable by a processor, Features: When the computer program is executed, the steps of the method according to any one of claims 1 to 4 are implemented.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program executable by the processor. Features: When the computer program is executed, the steps of the method according to any one of claims 1 to 4 are implemented.

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