Method, device and equipment for evaluating deformation of joint pipes under horizontal displacement of formations

Abstract

The present application discloses a method, device and equipment for evaluating the deformation of a joint pipe under horizontal displacement of the formation, which relates to the field of pipeline equipment detection technology and can solve the problem that the stress deformation of the joint pipe under the action of horizontal displacement of the formation cannot be quantitatively evaluated. The specific scheme includes: obtaining the uniformly distributed load in the static zone of the joint pipe under horizontal displacement of the formation, the uniformly distributed load in the displacement zone, the yield soil resistance and the yield displacement generated when the joint pipe and the formation move relative to each other; wherein, the static zone includes the first joint end of the joint pipe and the first pipe area at the intersection, and the displacement zone includes the second joint end of the joint pipe and the second pipe area at the intersection; according to the uniformly distributed load in the static zone, the uniformly distributed load in the displacement zone, the yield soil resistance, the yield displacement, the preset force balance model and the torque balance model of the joint pipe, the actual load distribution on the joint pipe is determined; according to the actual load distribution, the deformation parameters of the joint pipe are determined, and the deformation degree of the joint pipe is evaluated by the deformation parameters.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline equipment detection, and in particular to a method, device and equipment for evaluating deformation of joint pipelines under horizontal displacement of formations. Background Art

[0002] Common joint pipes, such as ductile iron pipes, cast iron pipes, clay pipes, concrete pipes, reinforced concrete pipes, etc., not only supply daily water to residents, but also bear the function of discharging various production and domestic waste (sewage) water and rainwater. In order not to occupy the use space on the ground and protect the pipelines from the impact of human production activities, most pipelines are buried underground and are inevitably subject to the risk of some geological disasters. For example, under the horizontal displacement of the stratum, the joints will crack under the action of shear force, the joint angle will be too large, and the pipe body will be bent and deformed too much, all of which will lead to the degradation of the normal service function of the joint pipes. In view of this, there is an urgent need for a stress deformation assessment method for joint pipes under the action of horizontal displacement of the stratum to provide a theoretical basis for the structural safety assessment of joint pipes. Summary of the Invention

[0003] The present application provides a method, device and equipment for evaluating the deformation of joint pipes under horizontal formation displacement, which can solve the problem that the stress deformation of joint pipes under the action of horizontal formation displacement cannot be quantitatively evaluated.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect of an embodiment of the present application, a method for evaluating deformation of a joint pipe under horizontal formation displacement is provided, the method comprising:

[0006] Obtain the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone of the joint pipe under horizontal displacement of the stratum, as well as the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the stratum;

[0007] The static zone includes the first joint end of the joint pipe and the first pipe area at the intersection position, and the dislocation zone includes the second joint end of the joint pipe and the second pipe area at the intersection position. The intersection position is the intersection position of the formation dislocation surface and the joint pipe.

[0008] Determine the actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and the preset force balance model and moment balance model of the joint pipe;

[0009] The deformation parameters of the joint pipe are determined according to the actual load distribution, and the deformation degree of the joint pipe is evaluated based on the deformation parameters.

[0010] In one embodiment, determining deformation parameters of the joint pipe according to actual load distribution, and evaluating the degree of deformation of the joint pipe according to the deformation parameters, includes:

[0011] Determine the shear force at the two joint ends of the joint pipe, the rotation angle at the two joint ends, and the bending moment of the joint pipe according to the actual load distribution;

[0012] The deformation degree of the joint pipe is evaluated according to at least one of the shear force of the two joint ends, the rotation angle of the two joint ends, and the bending moment of the joint pipe.

[0013] In one embodiment, determining the actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and a preset force balance model and moment balance model of the joint pipe includes:

[0014] According to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, the preset force balance model and the moment balance model of the joint pipe, the triangular load distribution in the static area and the triangular load distribution in the dislocation area are obtained;

[0015] The actual load distribution in the stationary area is obtained based on the load distribution difference between the uniform load in the stationary area and the triangular load distribution in the stationary area;

[0016] The actual load distribution in the dislocation area is obtained based on the load distribution difference between the uniform load in the dislocation area and the triangular load distribution in the dislocation area.

[0017] According to the actual load distribution in the static area and the actual load distribution in the dislocation area, the actual load distribution on the joint pipe is obtained.

[0018] In one embodiment, determining the shear force at two joint ends of the joint pipe according to actual load distribution includes:

[0019] Determine the shear force at the first joint end based on the shear force at the first joint end caused by the uniformly distributed load in the dislocation zone, the shear force at the first joint end caused by the uniformly distributed load in the static zone, the shear force at the first joint end caused by the triangular load distribution in the dislocation zone, and the shear force at the first joint end caused by the triangular load distribution in the static zone;

[0020] The shear force at the second joint end is determined based on the shear force acted on the second joint end by the uniformly distributed load in the dislocation zone, the shear force acted on the second joint end by the uniformly distributed load in the static zone, the shear force acted on the second joint end by the triangular load distribution in the dislocation zone, and the shear force acted on the second joint by the triangular load distribution in the static zone.

[0021] In one embodiment, determining the rotation angles of the two joint ends according to actual load distribution includes:

[0022] Determine the rotation angle of the first joint end based on the rotation angle caused by the uniformly distributed load in the dislocation zone acting on the first joint end, the rotation angle caused by the uniformly distributed load in the static zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the dislocation zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the static zone acting on the first joint, the rotation angle caused by the rigid rotation of the joint pipe at the first joint, and the rotation angle caused by the triangular load in the static zone on another joint pipe connected to the first joint end;

[0023] The rotation angle of the second joint end is determined based on the rotation angle caused by the uniformly distributed load in the dislocation area acting on the second joint end, the rotation angle caused by the uniformly distributed load in the static area acting on the second joint end, the rotation angle caused by the triangular load distribution in the dislocation area acting on the second joint end, the rotation angle caused by the triangular load distribution in the static area acting on the second joint end, the angle caused by the rigid rotation of the joint pipe at the second joint end, and the angle caused by the triangular load in the static area on another joint pipe connected to the second joint end.

[0024] In one embodiment, determining the bending moment of the joint pipe according to the actual load distribution includes:

[0025] The bending moment of the joint pipe is determined based on the bending moment of the uniformly distributed load in the dislocation zone, the bending moment of the uniformly distributed load in the static zone, the bending moment of the triangular load distribution in the dislocation zone and the bending moment of the triangular load distribution in the static zone.

[0026] In one embodiment, obtaining the yield soil resistance and yield displacement generated when the joint pipe and the formation move relative to each other includes:

[0027] Obtain the formation type where the joint pipe is located and the pipe attribute parameters of the joint pipe, and obtain the corresponding formation attribute parameters according to the formation type;

[0028] According to the pipeline attribute parameters and the formation attribute parameters, the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the formation are determined.

[0029] In one embodiment, obtaining the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone of the joint pipe under horizontal displacement of the formation includes:

[0030] Obtaining the relative position coefficient, the intersection angle between the formation dislocation surface and the joint pipe, the rigid rotation angle of the joint pipe, and the fault displacement of the formation, wherein the relative position coefficient is the ratio of the length of the static zone to the length of the joint pipe;

[0031] The uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone are determined based on the relative position coefficient, intersection angle, rigid rotation angle, fault displacement, yield soil resistance and yield displacement.

[0032] In a second aspect of an embodiment of the present application, a device for evaluating deformation of a joint pipe under horizontal displacement of a formation is provided, the device comprising:

[0033] An acquisition module is used to obtain the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone of the joint pipe under horizontal displacement of the stratum, and the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the stratum;

[0034] The static zone includes the first joint end of the joint pipe and the first pipe area at the intersection position, and the dislocation zone includes the second joint end of the joint pipe and the second pipe area at the intersection position. The intersection position is the intersection position of the formation dislocation surface and the joint pipe.

[0035] A determination module is used to determine the actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and the preset force balance model and moment balance model of the joint pipe;

[0036] The processing module is used to determine the deformation parameters of the joint pipe according to the actual load distribution, and to evaluate the deformation degree of the joint pipe according to the deformation parameters.

[0037] According to a third aspect of an embodiment of the present application, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for evaluating the deformation of a joint pipe under horizontal displacement of the formation in the first aspect of the embodiment of the present application is implemented.

[0038] In a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for evaluating the deformation of a joint pipe under horizontal displacement of the formation in the first aspect of the embodiment of the present application is implemented.

[0039] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0040] The deformation assessment method of the joint pipe under the horizontal displacement of the stratum provided in the embodiment of the present application is obtained by obtaining the uniform load in the static area of ​​the joint pipe under the horizontal displacement of the stratum, the uniform load in the displacement area, the yield soil resistance and the yield displacement generated when the joint pipe and the stratum move relative to each other, and then according to the uniform load in the static area, the uniform load in the displacement area, the yield soil resistance, the yield displacement, the force balance model and the torque balance model of the preset joint pipe, the actual load distribution on the joint pipe is determined, and finally the deformation parameters of the joint pipe are determined according to the actual load distribution, and the deformation degree of the joint pipe is evaluated according to the deformation parameters. Wherein, the static area includes the first joint end of the joint pipe and the first pipe area at the intersection position, the displacement area includes the second joint end of the joint pipe and the second pipe area at the intersection position, and the intersection position is the intersection position of the stratum displacement surface and the joint pipe. The deformation assessment method of the joint pipe under the horizontal displacement of the stratum provided in the present application can quantitatively analyze the deformation parameters when the horizontal displacement of the stratum occurs at different pipe section positions, and evaluate the deformation degree of the joint pipe according to the deformation parameters, providing a theoretical basis for the safety performance assessment of the joint pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic diagram of the internal structure of a computer device provided in an embodiment of the present application;

[0042] Figure 2 A flow chart of a method for evaluating deformation of a joint pipe under horizontal displacement of a formation provided in an embodiment of the present application;

[0043] Figure 3 A schematic diagram of the effect of a joint pipe provided in an embodiment of the present application under horizontal displacement of the formation;

[0044] Figure 4 A schematic diagram of load distribution of a joint pipe under horizontal displacement of the formation provided in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of the bending moment calculation results of a joint pipe provided in an embodiment of the present application;

[0046] Figure 6 This is a structural diagram of a deformation assessment device for joint pipes under horizontal displacement of formations provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0049] Additionally, the use of “based on” or “according to” is intended to be open and inclusive, in that a process, step, calculation, or other action “based on” or “according to” one or more conditions or values ​​may, in practice, be based on additional conditions or beyond values.

[0050] Common joint pipes, such as ductile iron pipes, cast iron pipes, clay pipes, concrete pipes, reinforced concrete pipes, etc., not only supply daily water to residents, but also bear the function of discharging various production and domestic waste (sewage) water and rainwater. In order not to occupy the use space on the ground and protect the pipelines from the impact of human production activities, most pipelines are buried underground and are inevitably subject to the risk of some geological disasters. For example, under the horizontal displacement of the stratum, the joints will crack under the action of shear force, the joint angle will be too large, and the pipe body will be bent and deformed too much, all of which will lead to the degradation of the normal service function of the joint pipes. In view of this, there is an urgent need for a stress deformation assessment method for joint pipes under the action of horizontal displacement of the stratum to provide a theoretical basis for the structural safety assessment of joint pipes.

[0051] In order to solve the above problems, the embodiment of the present application provides a deformation assessment method for a joint pipe under horizontal displacement of the stratum, by obtaining the uniformly distributed load in the static zone of the joint pipe under horizontal displacement of the stratum, the uniformly distributed load in the displacement zone, the yield soil resistance and yield displacement generated when the joint pipe and the stratum move relative to each other, and then according to the uniformly distributed load in the static zone, the uniformly distributed load in the displacement zone, the yield soil resistance, the yield displacement, the force balance model and the torque balance model of the preset joint pipe, the actual load distribution on the joint pipe is determined, and finally the deformation parameters of the joint pipe are determined according to the actual load distribution, and the deformation degree of the joint pipe is evaluated according to the deformation parameters. Wherein, the static zone includes the first joint end of the joint pipe and the first pipe area at the intersection position, the displacement zone includes the second joint end of the joint pipe and the second pipe area at the intersection position, and the intersection position is the intersection position of the stratum displacement surface and the joint pipe. The deformation assessment method for a joint pipe under horizontal displacement of the stratum provided in the present application can quantitatively analyze the deformation parameters when the horizontal displacement of the stratum occurs at different pipe section positions, and evaluate the deformation degree of the joint pipe according to the deformation parameters, providing a theoretical basis for the safety performance assessment of the joint pipe.

[0052] The executor of the deformation assessment method of the joint pipe under horizontal displacement of the formation provided in the embodiment of the present application can be a computer device, a terminal device, or a server, wherein the terminal device can be various personal computers, laptops, smart phones, tablet computers and portable wearable devices, etc., and this application does not make specific limitations.

[0053] Figure 1 This is a schematic diagram of the internal structure of a computer device provided in an embodiment of the present application. Figure 1 As shown, the computer device includes a processor and memory connected via a system bus. The processor is used to provide computing and control capabilities. The memory may include a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by the processor to implement the steps of the radar center position determination method provided in each of the above embodiments. The internal memory provides a cached operating environment for the operating system and computer program stored in the non-volatile storage medium.

[0054] Those skilled in the art will understand that Figure 1 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0055] Based on the above execution subject, the embodiment of the present application provides a method for deforming a joint pipe under horizontal displacement of the formation. Figure 2 As shown, the method includes the following steps:

[0056] Step 201: Obtain the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone of the joint pipe under horizontal displacement of the stratum, and the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the stratum;

[0057] The static zone and the shifting zone are divided by the shifting surface of the stratum. The static zone refers to the area where the stratum has not subsided, while the shifting zone refers to the area where the stratum has subsided. The static zone includes the first joint end of the joint pipe and the first pipe area at the intersection. The shifting zone includes the second joint end of the joint pipe and the second pipe area at the intersection. The intersection is the intersection of the shifting surface and the joint pipe.

[0058] Step 202: Determine the actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and the preset force balance model and moment balance model of the joint pipe;

[0059] Step 203: Determine the deformation parameters of the joint pipe according to the actual load distribution, and evaluate the deformation degree of the joint pipe according to the deformation parameters.

[0060] Optionally, the above step 203, determining the deformation parameters of the joint pipe according to the actual load distribution, and evaluating the deformation degree of the joint pipe according to the deformation parameters, includes:

[0061] The shear force at the two joint ends of the joint pipe, the rotation angle at the two joint ends, and the bending moment of the joint pipe are determined according to the actual load distribution; and the deformation degree of the joint pipe is evaluated according to at least one of the shear force at the two joint ends, the rotation angle at the two joint ends, and the bending moment of the joint pipe.

[0062] Optionally, the above-mentioned determination of the actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and the preset force balance model and moment balance model of the joint pipe includes:

[0063] According to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, the preset force balance model and the moment balance model of the joint pipe, the triangular load distribution in the static area and the triangular load distribution in the dislocation area are obtained;

[0064] The actual load distribution in the stationary area is obtained based on the load distribution difference between the uniform load in the stationary area and the triangular load distribution in the stationary area;

[0065] The actual load distribution in the dislocation area is obtained based on the load distribution difference between the uniform load in the dislocation area and the triangular load distribution in the dislocation area.

[0066] According to the actual load distribution in the static area and the actual load distribution in the dislocation area, the actual load distribution on the joint pipe is obtained.

[0067] Optionally, the shear force at the two joint ends of the joint pipe is determined based on the actual load and the range of the actual load, including:

[0068] Determine the shear force at the first joint end based on the shear force at the first joint end caused by the uniformly distributed load in the dislocation zone, the shear force at the first joint end caused by the uniformly distributed load in the static zone, the shear force at the first joint end caused by the triangular load distribution in the dislocation zone, and the shear force at the first joint end caused by the triangular load distribution in the static zone;

[0069] The shear force at the second joint end is determined based on the shear force acted on the second joint end by the uniformly distributed load in the dislocation zone, the shear force acted on the second joint end by the uniformly distributed load in the static zone, the shear force acted on the second joint end by the triangular load distribution in the dislocation zone, and the shear force acted on the second joint by the triangular load distribution in the static zone.

[0070] Optionally, the rotation angles of the two joint ends are determined based on the actual load distribution, including:

[0071] Determine the rotation angle of the first joint end based on the rotation angle caused by the uniformly distributed load in the dislocation zone acting on the first joint end, the rotation angle caused by the uniformly distributed load in the static zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the dislocation zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the static zone acting on the first joint, the rotation angle caused by the rigid rotation of the joint pipe at the first joint, and the rotation angle caused by the triangular load in the static zone on another joint pipe connected to the first joint end;

[0072] The rotation angle of the second joint end is determined based on the rotation angle caused by the uniformly distributed load in the dislocation area acting on the second joint end, the rotation angle caused by the uniformly distributed load in the static area acting on the second joint end, the rotation angle caused by the triangular load distribution in the dislocation area acting on the second joint end, the rotation angle caused by the triangular load distribution in the static area acting on the second joint end, the angle caused by the rigid rotation of the joint pipe at the second joint end, and the angle caused by the triangular load in the static area on another joint pipe connected to the second joint end.

[0073] Optionally, the bending moment of the joint pipe is determined based on the actual load distribution, including:

[0074] The bending moment of the joint pipe is determined based on the bending moment of the uniformly distributed load in the dislocation zone, the bending moment of the uniformly distributed load in the static zone, the bending moment of the triangular load distribution in the dislocation zone and the bending moment of the triangular load distribution in the static zone.

[0075] Optionally, obtain the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the stratum, including:

[0076] Obtain the formation type where the joint pipe is located and the pipe attribute parameters of the joint pipe, and obtain the corresponding formation attribute parameters according to the formation type;

[0077] According to the pipeline attribute parameters and the formation attribute parameters, the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the formation are determined.

[0078] Optionally, obtaining the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone of the joint pipe under horizontal displacement of the formation includes:

[0079] Obtaining the relative position coefficient, the intersection angle between the formation dislocation surface and the joint pipe, the rigid rotation angle of the joint pipe, and the fault displacement of the formation, wherein the relative position coefficient is the ratio of the length of the static zone to the length of the joint pipe;

[0080] The uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone are determined based on the relative position coefficient, intersection angle, rigid rotation angle, fault displacement, yield soil resistance and yield displacement.

[0081] The deformation assessment method of the joint pipe under the horizontal displacement of the stratum provided in the embodiment of the present application is obtained by obtaining the uniform load in the static area of ​​the joint pipe under the horizontal displacement of the stratum, the uniform load in the displacement area, the yield soil resistance and the yield displacement generated when the joint pipe and the stratum move relative to each other, and then according to the uniform load in the static area, the uniform load in the displacement area, the yield soil resistance, the yield displacement, the force balance model and the torque balance model of the preset joint pipe, the actual load distribution on the joint pipe is determined, and finally the deformation parameters of the joint pipe are determined according to the actual load distribution, and the deformation degree of the joint pipe is evaluated according to the deformation parameters. Wherein, the static area includes the first joint end of the joint pipe and the first pipe area at the intersection position, the displacement area includes the second joint end of the joint pipe and the second pipe area at the intersection position, and the intersection position is the intersection position of the stratum displacement surface and the joint pipe. The deformation assessment method of the joint pipe under the horizontal displacement of the stratum provided in the present application can quantitatively analyze the deformation parameters when the horizontal displacement of the stratum occurs at different pipe section positions, and evaluate the deformation degree of the joint pipe according to the deformation parameters, providing a theoretical basis for the safety performance assessment of the joint pipe.

[0082] To facilitate understanding by those skilled in the art, the deformation assessment method for a joint pipe under horizontal displacement of a stratum provided in this application is described by taking a computer device as an example. Specifically, the method includes:

[0083] like Figure 3 As shown, the stratum dislocation surface is used as the dividing surface, the left stratum is defined as the static zone, and the right stratum is defined as the dislocation zone. The pipelines are connected by joints and buried in the stratum. The pipe section intersecting the stratum dislocation surface is the main force-bearing structure. The joint pipe in this application is the pipe intersecting the stratum dislocation surface. Figure 3 The total length L of the pipe section P2 that intersects the stratum dislocation surface is divided into two parts: (1) The length of the pipe section in the static area is defined as L s ; (2) The length of the pipe section in the dislocation area is defined as L m .

[0084] like Figure 4 As shown in the figure, the soil load distribution acting on the pipe section P2 is equivalent to four parts: (1) static area: rectangular uniform load, size F vs , the direction is vertically upward, the action length range is Ls; (2) static area: triangular load, the maximum load is (F vs +f1), the direction is vertically upward, and the effective length range is defined as l x (3) Dislocation area: rectangular uniformly distributed load, size F vm , the direction is vertically downward, and the effective length range is L m ; (4) Dislocation area: triangular load, maximum load is (F vm +f2), the direction is vertical downward, and the effective length range is ly The unit of load is kN / m, and the unit of length is m. The actual distribution of soil load acting on pipe section P2 is obtained by subtracting the triangular load in the static area from the rectangular uniform load in the static area and adding the rectangular uniform load in the dislocation area from the triangular load in the dislocation area. That is, the load distribution is equivalent to: (1)-(2)+(3)-(4).

[0085] (1) Obtain the formation type where the joint pipe is located and the pipe attribute parameters of the joint pipe, and obtain the corresponding formation attribute parameters according to the formation type.

[0086] (2) Based on the pipeline attribute parameters and the formation attribute parameters, determine the yield soil resistance and yield displacement generated when the joint pipeline and the formation move relative to each other.

[0087] Define F vh is the yield soil resistance generated by the relative movement of pipe and soil, calculated according to formula (1); δ vh is the corresponding yield displacement value; the load unit is kN / m, the displacement unit is m, and it is calculated according to formula (2).

[0088]

[0089]

[0090] Where: N ch 、N qh is the dimensionless lateral bearing capacity coefficient; Effective density of sand, unit: kN / m 3 ;H c is the distance from the center of the pipe cross section to the ground surface, in meters; D is the outer diameter of the pipe, in meters.

[0091] It should be noted that the stratum types for yield soil resistance include clay and sand, and the stratum types for yield displacement include loose sand, medium-dense sand, dense sand, and hard-soft clay.

[0092] The attribute parameters of the pipeline include: D pipeline outer diameter, N ch 、N qh is the dimensionless lateral bearing capacity coefficient, H c is the distance from the center of the pipe cross section to the ground surface. The attribute parameters of the formation include Effective density of sandy soil.

[0093] (3) Obtain the relative position coefficient, the intersection angle between the formation dislocation surface and the joint pipe, the rigid rotation angle of the joint pipe, and the fault displacement of the formation.

[0094] The relative position coefficient is the ratio of the length of the static zone to the length of the joint pipe. The relative position coefficient rp is used to describe the different intersection positions of the fault dislocation surface and the pipe section P2. Its value is rp = L s / L, the size range is 0~1. When rp=0, the fault displacement position is located at the joint of pipe section P2.

[0095] (4) Determine the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone based on the relative position coefficient, intersection angle, rigid rotation angle, fault displacement, yield soil resistance and yield displacement.

[0096] Among them, the static area is the first joint end of the joint pipe and the first pipe area at the intersection position, the dislocation area is the second joint end of the joint pipe and the second pipe area at the intersection position, the intersection position is the intersection position of the formation dislocation surface and the joint pipe, the angle between the first pipe area and the formation dislocation surface is an acute angle, and the angle between the second pipe area and the formation dislocation surface is an obtuse angle.

[0097] When rp=0, the static area of ​​pipe section P2 is uniformly loaded with load F vs =0; uniformly distributed load F in the dislocation area vm According to formula (3), we can get:

[0098]

[0099] Where δ is the fault displacement, in m; β is the rigid rotation angle of pipe segment P2, which is calculated according to formula (4); θ is the intersection angle between the stratum dislocation surface and pipe segment P2.

[0100]

[0101] 1. When 0<rp<1, the static area of ​​pipe section P2 is uniformly loaded with F vs According to formula (5), we can get:

[0102]

[0103] The uniformly distributed load F in the displacement area of ​​pipe section P2 vm According to formula (6), we can get:

[0104]

[0105] The rigid rotation angle β of pipe section P2 is calculated according to formula (7):

[0106]

[0107] According to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, the preset force balance model and the moment balance model of the joint pipe, the triangular load distribution in the static area and the triangular load distribution in the dislocation area are obtained;

[0108] Specifically, the uniform load F in the static area vs and the uniform load F in the fault area vm cause the vertical deflection ω of the pipeline in the static area (0 ≤ l ≤ L s ) of the pipe segment P2 11 and ω 12 which are calculated according to Equation (8).

[0109]

[0110] where l is an arbitrary position on the pipe segment P2.

[0111] The uniform load F in the static area vs and the uniform load F in the fault area vm cause the vertical deflection ω of the pipeline in the fault area (L s ≤ l ≤ L) of the pipe segment P2 21 and ω 22 which are calculated according to Equation (9).

[0112]

[0113] When 0 < rp < 1, under the action of the fault, according to the linear interpolation method, the vertical displacement sp at an arbitrary position l generated by the rigid body rotation of the pipe segment P2 is calculated according to Equation (10):

[0114]

[0115] When 0 < rp < 1, the total displacements spt1 and spt2 of the pipeline in the static area and the fault area are calculated according to Equation (11).

[0116]

[0117] The pipe-soil relative displacements spd1 and spd2 in the static area and the fault area are calculated according to Equation (12):

[0118]

[0119] When rp = 0, the pipe-soil relative displacement in the fault area is calculated according to Equation (13).

[0120]

[0121] When rpδsinθ < δ vh (0 < rp < 1), that is, the uniform load F in the static area vs is less than the yield soil resistance F vh , then the length of l x is equal to L s ; when (1 - rp)δsinθ < δvh (0 < rp < 1) or that is, the uniformly distributed load F in the slip zone vm is less than the yield soil resistance F vh when, l y the length of is equal to L m .

[0122] When rpδsinθ ≥ δ vh (0 < rp < 1), that is, the uniformly distributed load F in the static zone vs is equal to the yield soil resistance F vh when, the displacement of the pipe-soil relative displacement spd1 equation in the static zone at l = l x is equal to δ vh , that is l can be obtained x ; when (1 - rp)δsinθ ≥ δ vh (0 < rp < 1), that is, the uniformly distributed load F in the slip zone vm is equal to the yield soil resistance F vh when, the displacement of the pipe-soil relative displacement spd2 in the slip zone at l = L - l y is equal to δ vh , that is l can be obtained y .

[0123] Among them, as Figure 4 shown l x is the action range of the triangular load in the static zone, l y is the action range of the triangular load distribution in the slip zone.

[0124] Establish the force balance equation of pipeline P2 as shown in Equation (14):

[0125]

[0126] and the moment balance equation as shown in Equation (15):

[0127]

[0128] It can be obtained that f1 and f2 are solved according to Equation (16) and Equation (17) respectively as follows:

[0129]

[0130]

[0131] Among them, for the triangular load in the static zone, the maximum load is (F vs + f1), the direction is vertically upward, and the action length range is defined as l x ; for the triangular load in the slip zone, the maximum load is (F vm+f2), the direction is vertical downward, and the effective length range is l y .

[0132] The actual load distribution in the static zone is obtained based on the load distribution difference between the uniformly distributed load in the static zone and the triangular load distribution in the static zone; the actual load distribution in the dislocation zone is obtained based on the load distribution difference between the uniformly distributed load in the dislocation zone and the triangular load distribution in the dislocation zone; the actual load distribution on the joint pipe is obtained based on the actual load distribution in the static zone and the actual load distribution in the dislocation zone.

[0133] Specifically, such as Figure 4 As shown in Figure 2, the rectangular uniform load in the static area is subtracted from the triangular load in the static area, and then the rectangular uniform load in the dislocation area is added minus the triangular load in the dislocation area to obtain the actual load distribution acting on the pipe section P2, that is, the load distribution is equivalent to: (1)-(2)+(3)-(4).

[0134] The shear force at the first joint end is determined based on the shear force applied to the first joint end by the uniformly distributed load in the dislocation zone, the shear force applied to the first joint end by the uniformly distributed load in the static zone, the shear force applied to the first joint end by the triangular load distribution in the dislocation zone, and the shear force applied to the first joint by the triangular load distribution in the static zone.

[0135] Specifically, the shear force R1 acting on the first joint end of the joint pipe is as shown in formula (18). 1-1 F is the rectangular uniformly distributed load in the displacement area vm Shear force acting on joint J1; R 1-2 F is the rectangular uniformly distributed load in the static area vs Shear force acting on joint J1; R 1-3 is the triangular load in the dislocation area (F vm +f2) shear force acting on joint J1; R 1-4 is the triangle load in the static area (F vs +f1) Shear force acting on the first joint end J1.

[0136]

[0137] The shear force at the second joint end is determined based on the shear force acted on the second joint end by the uniformly distributed load in the dislocation zone, the shear force acted on the second joint end by the uniformly distributed load in the static zone, the shear force acted on the second joint end by the triangular load distribution in the dislocation zone, and the shear force acted on the second joint by the triangular load distribution in the static zone.

[0138] Specifically, the shear force R1 acting on the second joint end of the joint pipe is as shown in formula (19).

[0139]

[0140] Where: R 2-1F is the rectangular uniformly distributed load in the displacement area vm Shear force acting on joint J2; R 2-2 F is the rectangular uniformly distributed load in the static area vs Shear force acting on the second joint end J2; R 2-3 is the triangular load in the dislocation area (F vm +f2) shear force acting on joint J2; R 2-4 is the triangle load in the static area (F vs +f1) Shear force acting on joint J2.

[0141] The rotation angle of the first joint end is determined based on the rotation angle caused by the uniformly distributed load in the dislocation zone acting on the first joint end, the rotation angle caused by the uniformly distributed load in the static zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the dislocation zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the static zone acting on the first joint, the rotation angle caused by the rigid rotation of the joint pipe at the first joint, and the rotation angle caused by the triangular load in the static zone on another joint pipe connected to the first joint end.

[0142] Specifically, the rotation angle β1 generated at the first joint end of the joint pipe is as shown in formula (20):

[0143]

[0144] Where: 1-1 F is the rectangular uniformly distributed load in the displacement area vm The rotation angle caused by the joint J1; β 1-2 F is the rectangular uniformly distributed load in the static area vs The rotation angle caused by the joint J1; β 1-3 is the triangular load in the dislocation area (F vm +f2) the rotation angle caused by the joint J1; β 1-4 is the triangle load in the static area (F vs +f1) the rotation angle caused by the joint J1; β 1-5 is the rotation angle caused by the rigid rotation of pipe segment P2 at joint J1; β 1-6 is the rotation angle caused by the triangular load on the static zone pipe section P1 at the joint J1.

[0145] The rotation angle of the second joint end is determined based on the rotation angle caused by the uniformly distributed load in the dislocation area acting on the second joint end, the rotation angle caused by the uniformly distributed load in the static area acting on the second joint end, the rotation angle caused by the triangular load distribution in the dislocation area acting on the second joint end, the rotation angle caused by the triangular load distribution in the static area acting on the second joint end, the angle caused by the rigid rotation of the joint pipe at the second joint end, and the angle caused by the triangular load in the static area on another joint pipe connected to the second joint end.

[0146] Specifically, the rotation angle β1 generated by the second joint end of the joint pipe is as shown in formula (21):

[0147]

[0148] Where: 2-1 F is the rectangular uniformly distributed load in the displacement area vm The rotation angle caused by the joint J2; β 2-2 F is the rectangular uniformly distributed load in the static area vs The rotation angle caused by the joint J2; β 2-3 is the triangular load in the dislocation area (F vm +f2) the rotation angle caused by the joint J2; β 2-4 is the triangle load in the static area (F vs +f1) the rotation angle caused by the joint J2; β 2-5 is the rotation angle caused by the rigid rotation of pipe segment P2 at joint J2; β 2-6 is the rotation angle caused by the triangular load on the static zone pipe section P3 at the joint J2.

[0149] The bending moment of the joint pipe is determined based on the bending moment of the uniformly distributed load in the dislocation zone, the bending moment of the uniformly distributed load in the static zone, the bending moment of the triangular load distribution in the dislocation zone and the bending moment of the triangular load distribution in the static zone.

[0150] Rectangular uniformly distributed load F in the dislocation area vm The bending moment equation of pipe section P2 under action is shown in formula (22):

[0151]

[0152] Rectangular uniformly distributed load F in the static zone vs The bending moment equation of pipe section P2 under action is shown in formula (23):

[0153]

[0154] Triangular load in the dislocation zone (F vm The bending moment equation of pipe section P2 under the action of φ + f2) is shown in formula (24):

[0155]

[0156] Static zone triangle load (F vs The bending moment equation of pipe section P2 under the action of φ + f1) is shown in formula (25):

[0157]

[0158] Finally, the bending moment equation M(l) of pipe P2 is: M(l) = M1(l) + M2(l) - M3(l) - M4(l). Based on the above, the bending moment of the joint pipe can be calculated.

[0159] The deformation degree of the joint pipe is evaluated according to at least one of the shear force of the two joint ends, the rotation angle of the two joint ends, and the bending moment of the joint pipe.

[0160] That is, the deformation degree of the joint pipe can be evaluated based on the shear force at the two joint ends, or the rotation angle at the two joint ends, or the bending moment of the joint pipe. Alternatively, the deformation degree of the joint pipe can be evaluated based on the shear force at the two joint ends, the rotation angle at the two joint ends, and the bending moment of the joint pipe.

[0161] This application takes the joint pipe as a ductile iron pipe as an example and provides a specific embodiment. The ductile iron pipe has a diameter D = 0.175m, a wall thickness t = 0.0076m, and an elastic modulus E = 180×10 6 kPa, pipe length L = 3.66m, fault and pipeline intersection angle θ = 50°, acting on the mid-span of pipe section P2, i.e. rp = 0.5, L m =1.83, L s =1.83m, internal friction angle of sand N qh =11.5, Fault displacement δ = 0.14m, pipeline burial depth H c =0.85m.

[0162] according to δ vh =0.014H c , and get F vh =30.1kN / m,δ vh =0.0119m. The rigid rotation angle β of pipe section P2 is: We get β = 1.68°

[0163] When 0<rp<1, rpδsinθ=0.053 and (1-rp)δsinθ=0.053, both are greater than δ vh =0.0119m, therefore, the static area of ​​pipe section P2 is uniformly loaded with F vs =F vh cosβ=30.08kN / m, the uniformly distributed load F in the displacement area of ​​pipe section P2 vm =F vh cosβ=30.08kN / m.

[0164] Obtain the pipe-soil relative displacements spd1 and spd2 at any position l along the pipe section P2 in the static zone and the dislocation zone:

[0165]

[0166] Solve for the acting length range \(l\) of the triangular load x and \(l\) y . Given that \(r_p\delta\sin\theta\geq\delta\) vh , that is, the uniform load \(F\) in the static zone vs is equal to the yield soil resistance \(F\) vh When, so the displacement of the pipe-soil relative displacement \(s_{pd1}\) equation in the static zone at \(l = l\) x is equal to \(\delta\) vh , that is \(l\) can be obtained x ; Given that \((1 - r_p)\delta\sin\theta\geq\delta\) vh \((0\lt r_p\lt1)\), that is, the uniform load \(F\) in the dislocation zone vm is equal to the yield soil resistance \(F\) vh When, the displacement of the pipe-soil relative displacement \(s_{pd2}\) in the dislocation zone at \(l = L - l\) y is equal to \(\delta\) vh , that is \(l\) can be obtained y .

[0167] Obtain \(l\) x and \(l\) y , substitute them into the solution formulas of \(f_1\) and \(f_2\) to obtain \(f_1\) and \(f_2\).

[0168] When \(l\) x , \(l\) y , \(f_1\), and \(f_2\) are obtained and substituted into the solution formulas of shear force, joint rotation angle, and bending moment, the shear force, joint rotation angle, and bending moment on the main stressed pipe segment \(P_2\) can be obtained.

[0169] As Figure 5 shown, taking the joint pipe as a ductile iron pipe, the bending moment of the joint pipe is calculated by the calculation method proposed in the present invention.

[0170] As Figure 6 shown, the embodiment of the present application also provides an evaluation device for the deformation of a joint pipe under horizontal stratum dislocation. The device includes:

[0171] An acquisition module 11 for acquiring the uniform load in the static zone, the uniform load in the dislocation zone, the yield soil resistance and the yield displacement generated when the joint pipe and the stratum move relative to each other under horizontal stratum dislocation of the joint pipe;

[0172] Among them, the static zone includes the first pipe area at the first joint end of the joint pipe and the intersection position, and the dislocation zone includes the second pipe area at the second joint end of the joint pipe and the intersection position. The intersection position is the intersection position of the stratum dislocation surface and the joint pipe;

[0173] A determination module 12 is configured to determine the actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and a preset force balance model and moment balance model of the joint pipe;

[0174] The processing module 13 is used to determine the deformation parameters of the joint pipe according to the actual load distribution, and to evaluate the deformation degree of the joint pipe according to the deformation parameters.

[0175] In one embodiment, the processing module 13 is specifically configured to:

[0176] Determine the shear force at the two joint ends of the joint pipe, the rotation angle at the two joint ends, and the bending moment of the joint pipe according to the actual load distribution;

[0177] The deformation degree of the joint pipe is evaluated according to at least one of the shear force of the two joint ends, the rotation angle of the two joint ends, and the bending moment of the joint pipe.

[0178] In one embodiment, the determination module 12 is specifically configured to:

[0179] According to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, the preset force balance model and the moment balance model of the joint pipe, the triangular load distribution in the static area and the triangular load distribution in the dislocation area are obtained;

[0180] The actual load distribution in the stationary area is obtained based on the load distribution difference between the uniform load in the stationary area and the triangular load distribution in the stationary area;

[0181] The actual load distribution in the dislocation area is obtained based on the load distribution difference between the uniform load in the dislocation area and the triangular load distribution in the dislocation area.

[0182] According to the actual load distribution in the static area and the actual load distribution in the dislocation area, the actual load distribution on the joint pipe is obtained.

[0183] In one embodiment, the determination module 12 is specifically configured to:

[0184] Determine the shear force at the first joint end based on the shear force at the first joint end caused by the uniformly distributed load in the dislocation zone, the shear force at the first joint end caused by the uniformly distributed load in the static zone, the shear force at the first joint end caused by the triangular load distribution in the dislocation zone, and the shear force at the first joint end caused by the triangular load distribution in the static zone;

[0185] The shear force at the second joint end is determined based on the shear force acted on the second joint end by the uniformly distributed load in the dislocation zone, the shear force acted on the second joint end by the uniformly distributed load in the static zone, the shear force acted on the second joint end by the triangular load distribution in the dislocation zone, and the shear force acted on the second joint by the triangular load distribution in the static zone.

[0186] In one embodiment, the determination module 12 is specifically configured to:

[0187] Determine the rotation angle of the first joint end based on the rotation angle caused by the uniformly distributed load in the dislocation zone acting on the first joint end, the rotation angle caused by the uniformly distributed load in the static zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the dislocation zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the static zone acting on the first joint, the rotation angle caused by the rigid rotation of the joint pipe at the first joint, and the rotation angle caused by the triangular load in the static zone on another joint pipe connected to the first joint end;

[0188] The rotation angle of the second joint end is determined based on the rotation angle caused by the uniformly distributed load in the dislocation area acting on the second joint end, the rotation angle caused by the uniformly distributed load in the static area acting on the second joint end, the rotation angle caused by the triangular load distribution in the dislocation area acting on the second joint end, the rotation angle caused by the triangular load distribution in the static area acting on the second joint end, the angle caused by the rigid rotation of the joint pipe at the second joint end, and the angle caused by the triangular load in the static area on another joint pipe connected to the second joint end.

[0189] In one embodiment, the determination module 12 is specifically configured to:

[0190] The bending moment of the joint pipe is determined based on the bending moment of the uniformly distributed load in the dislocation zone, the bending moment of the uniformly distributed load in the static zone, the bending moment of the triangular load distribution in the dislocation zone and the bending moment of the triangular load distribution in the static zone.

[0191] In one embodiment, the acquisition module 11 is specifically configured to:

[0192] Obtain the formation type where the joint pipe is located and the pipe attribute parameters of the joint pipe, and obtain the corresponding formation attribute parameters according to the formation type;

[0193] According to the pipeline attribute parameters and the formation attribute parameters, the yield soil resistance and yield displacement generated by the relative movement between the joint pipe and the formation are determined.

[0194] In one embodiment, the acquisition module 11 is specifically configured to:

[0195] Obtaining the relative position coefficient, the intersection angle between the formation dislocation surface and the joint pipe, the rigid rotation angle of the joint pipe, and the fault displacement of the formation, wherein the relative position coefficient is the ratio of the length of the static zone to the length of the joint pipe;

[0196] The uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone are determined based on the relative position coefficient, intersection angle, rigid rotation angle, fault displacement, yield soil resistance and yield displacement.

[0197] The device for evaluating deformation of joint pipes under horizontal displacement of formations provided in this embodiment can execute the above method embodiments, and its implementation principles and technical effects are similar, which will not be elaborated here.

[0198] The specific limitations of the device for assessing deformation of a jointed pipe due to horizontal formation displacement can be found in the limitations of the method for assessing deformation of a jointed pipe due to horizontal formation displacement described above and will not be further elaborated here. Each module in the device for assessing deformation of a jointed pipe due to horizontal formation displacement can be implemented in whole or in part via software, hardware, or a combination thereof. Each of these modules can be embedded in or independent of a processor in a server in hardware form, or stored in a memory in the server in software form, so that the processor can call and execute the corresponding operations of each of these modules.

[0199] In another embodiment of the present application, a computer device is provided, including a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the steps of the method for evaluating the deformation of a joint pipe under horizontal displacement of the formation as in the embodiment of the present application are implemented.

[0200] In another embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method for evaluating the deformation of a joint pipe under horizontal displacement of the formation in the embodiment of the present application are implemented.

[0201] In another embodiment of the present application, a computer program product is also provided, which includes computer instructions. When the computer instructions are run on an evaluation device for deformation of a joint pipe under horizontal displacement of the formation, the evaluation device for deformation of a joint pipe under horizontal displacement of the formation executes each step of the method for evaluating deformation of a joint pipe under horizontal displacement of the formation in the method flow shown in the above-mentioned method embodiment.

[0202] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer execution instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more media that can be integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0203] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0204] The above embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A method for evaluating the deformation of joint pipes under horizontal displacement of the formation, characterized in that: The method comprises: Obtaining the uniformly distributed load in the static zone and the uniformly distributed load in the dislocation zone of the joint pipe under horizontal displacement of the stratum, and the yield soil resistance and yield displacement generated when the joint pipe and the stratum move relative to each other, including: Obtaining a relative position coefficient, an intersection angle between the formation dislocation plane and the joint pipe, a rigid rotation angle of the joint pipe, and a fault displacement of the formation, wherein the relative position coefficient is a ratio of the length of the static zone to the length of the joint pipe; Determining a uniformly distributed load in a static area and a uniformly distributed load in a dislocation area according to the relative position coefficient, the intersection angle, the rigid rotation angle, the fault displacement, the yield soil resistance, and the yield displacement; Acquire the formation type where the joint pipe is located and the pipe attribute parameters of the joint pipe, and acquire corresponding formation attribute parameters according to the formation type; Determining, based on the pipeline attribute parameters and the formation attribute parameters, the yield soil resistance and yield displacement generated when the joint pipe and the formation move relative to each other; The static zone includes the first joint end of the joint pipe and the first pipe area at the intersection, and the dislocation zone includes the second joint end of the joint pipe and the second pipe area at the intersection. The intersection is the intersection of the formation dislocation surface and the joint pipe. Determining the actual load distribution on the joint pipe according to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and a preset force balance model and moment balance model of the joint pipe includes: According to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and the preset force balance model and moment balance model of the joint pipe, a triangular load distribution in the static area and a triangular load distribution in the dislocation area are obtained; Obtaining an actual load distribution in the static zone according to a load distribution difference between the uniform load in the static zone and the triangular load distribution in the static zone; Obtaining an actual load distribution in the dislocation zone according to a load distribution difference between the uniformly distributed load in the dislocation zone and the triangular load distribution in the dislocation zone; Obtaining an actual load distribution on the joint pipe according to the actual load distribution in the static zone and the actual load distribution in the shifting zone; Determining deformation parameters of the joint pipe according to the actual load distribution, and evaluating the deformation degree of the joint pipe according to the deformation parameters, including: Determining the shear force of the two joint ends of the joint pipe, the rotation angle of the two joint ends, and the bending moment of the joint pipe according to the actual load distribution; The deformation degree of the joint pipe is evaluated according to at least one of the shear force of the two joint ends, the rotation angle of the two joint ends, and the bending moment of the joint pipe.

2. The method according to claim 1, characterized in that Determining the shear force at the two joint ends of the joint pipe according to the actual load distribution includes: Determine the shear force on the first joint end based on the shear force on the first joint end caused by the uniformly distributed load in the dislocation zone, the shear force on the first joint end caused by the uniformly distributed load in the static zone, the shear force on the first joint end caused by the triangular load distribution in the dislocation zone, and the shear force on the first joint end caused by the triangular load distribution in the static zone; The shear force at the second joint end is determined based on the shear force acted on the second joint end by the uniformly distributed load in the dislocation zone, the shear force acted on the second joint end by the uniformly distributed load in the static zone, the shear force acted on the second joint end by the triangular load distribution in the dislocation zone, and the shear force acted on the second joint end by the triangular load distribution in the static zone.

3. The method according to claim 1, characterized in that Determining the rotation angles of the two joint ends according to the actual load distribution includes: Determine the rotation angle of the first joint end based on the rotation angle caused by the uniformly distributed load in the dislocation zone acting on the first joint end, the rotation angle caused by the uniformly distributed load in the static zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the dislocation zone acting on the first joint end, the rotation angle caused by the triangular load distribution in the static zone acting on the first joint end, the rotation angle caused by the rigid rotation of the joint pipe at the first joint end, and the rotation angle caused by the triangular load in the static zone on another joint pipe connected to the first joint end; The angle of the second joint end is determined based on the angle caused by the uniformly distributed load in the dislocation area acting on the second joint end, the angle caused by the uniformly distributed load in the static area acting on the second joint end, the angle caused by the triangular load distribution in the dislocation area acting on the second joint end, the angle caused by the triangular load distribution in the static area acting on the second joint end, the angle caused by the rigid rotation of the joint pipe at the second joint end, and the angle caused by the triangular load in the static area on another joint pipe connected to the second joint end.

4. The method according to claim 1, wherein Determining the bending moment of the joint pipe according to the actual load distribution includes: The bending moment of the joint pipe is determined based on the bending moment of the uniformly distributed load in the dislocation zone acting on the joint pipe, the bending moment of the uniformly distributed load in the static zone acting on the joint pipe, the bending moment of the triangular load distribution in the dislocation zone acting on the joint pipe, and the bending moment of the triangular load distribution in the static zone acting on the joint pipe.

5. A device for evaluating the deformation of joint pipes under horizontal displacement of the formation, characterized in that: The device comprises: An acquisition module is configured to acquire a uniformly distributed load in a stationary zone of a joint pipe under horizontal displacement of a stratum, a uniformly distributed load in a dislocation zone, and yield soil resistance and yield displacement generated by relative movement between the joint pipe and the stratum, including acquiring a relative position coefficient, an intersection angle between the stratum dislocation plane and the joint pipe, a rigid rotation angle of the joint pipe, and a fault displacement of the stratum, wherein the relative position coefficient is a ratio of the length of the stationary zone to the length of the joint pipe; Determining a uniformly distributed load in a static area and a uniformly distributed load in a dislocation area according to the relative position coefficient, the intersection angle, the rigid rotation angle, the fault displacement, the yield soil resistance, and the yield displacement; Acquire the formation type where the joint pipe is located and the pipe attribute parameters of the joint pipe, and acquire corresponding formation attribute parameters according to the formation type; Determining, based on the pipeline attribute parameters and the formation attribute parameters, the yield soil resistance and yield displacement generated when the joint pipe and the formation move relative to each other; The static zone includes the first joint end of the joint pipe and the first pipe area at the intersection, and the dislocation zone includes the second joint end of the joint pipe and the second pipe area at the intersection. The intersection is the intersection of the formation dislocation surface and the joint pipe. A determination module is configured to determine an actual load distribution on the joint pipe based on the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and a preset force balance model and moment balance model of the joint pipe, including: According to the uniformly distributed load in the static area, the uniformly distributed load in the dislocation area, the yield soil resistance, the yield displacement, and the preset force balance model and moment balance model of the joint pipe, a triangular load distribution in the static area and a triangular load distribution in the dislocation area are obtained; according to the load distribution difference between the uniformly distributed load in the static area and the triangular load distribution in the static area, an actual load distribution in the static area is obtained; according to the load distribution difference between the uniformly distributed load in the dislocation area and the triangular load distribution in the dislocation area, an actual load distribution in the dislocation area is obtained; according to the actual load distribution in the static area and the actual load distribution in the dislocation area, an actual load distribution on the joint pipe is obtained; A processing module, configured to determine a deformation parameter of the joint pipe according to the actual load distribution, and to evaluate a degree of deformation of the joint pipe according to the deformation parameter, comprising: The shear force at the two joint ends of the joint pipe, the rotation angle of the two joint ends, and the bending moment of the joint pipe are determined according to the actual load distribution; and the deformation degree of the joint pipe is evaluated according to at least one of the shear force at the two joint ends, the rotation angle of the two joint ends, and the bending moment of the joint pipe.

6. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for evaluating the deformation of a joint pipe under horizontal displacement of a formation according to any one of claims 1 to 4 is implemented.

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