CN107169240B - Back-dragging calculation method and device based on stepped hole - Google Patents
Back-dragging calculation method and device based on stepped hole Download PDFInfo
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- CN107169240B CN107169240B CN201710479780.6A CN201710479780A CN107169240B CN 107169240 B CN107169240 B CN 107169240B CN 201710479780 A CN201710479780 A CN 201710479780A CN 107169240 B CN107169240 B CN 107169240B
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Abstract
The invention provides a back dragging calculation method and a back dragging calculation device based on a stepped hole, which comprise the following steps: acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation; acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation; generating an assembly body model from the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to a second selection operation; judging whether the assembly body model meets the requirements or not; if the requirement is met, the assembling body model is calculated according to the third selection operation to generate a cloud picture and a back-dragging force curve, so that the influence of resistance caused by the stepped hole on the pipeline back-dragging engineering can be analyzed, and the occurrence of pipe clamping or pipeline deformation damage accidents is reduced.
Description
Technical Field
The invention relates to the technical field of horizontal directional drilling, in particular to a back-dragging calculation method and device based on a stepped hole.
Background
The back towing load is influenced by a plurality of factors, at present, the factors such as geological conditions, track curvature, slurry properties, pipeline materials, hole diameter and pipeline hole diameter ratio and the like are mainly researched at home and abroad, and the research is rarely carried out on special construction working conditions. When the pipeline is dragged back to cross the step, the influence of resistance caused by the stepped hole on the pipeline dragging back project is analyzed, so that the pipe clamping or pipeline deformation damage accident is caused by overlarge resistance of the step, and the dragging back force is increased to exceed the load provided by the drilling machine, so that the passing project fails.
Disclosure of Invention
In view of the above, the present invention provides a back-dragging calculation method and device based on a stepped hole, which can analyze the influence of resistance caused by the stepped hole on the pipeline back-dragging engineering, and reduce the occurrence of pipe clamping or pipeline deformation damage accidents.
In a first aspect, an embodiment of the present invention provides a back dragging calculation method based on a stepped hole, where the method includes:
acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation;
acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation;
generating an assemblage model from the geometric parameters, the calculation parameters, the material parameters, and the mesh parameters according to the second selection operation;
judging whether the assembling body model meets the requirements or not;
and if the requirements are met, calculating the assembling body model according to the third selection operation to generate a cloud picture and a back dragging force curve.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the third selecting operation includes a cloud graph calculating control and a curve generating control, and the calculating the rigger model according to the third selecting operation to generate a cloud graph and a back-drag curve includes:
if the third selection operation is the cloud picture calculation control, calculating the assembling body model to generate the cloud picture;
and if the third selection operation is the curve generation control, calculating the assembling body model to generate the back dragging force curve.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the first selection operation includes a geometric parameter control, a calculation parameter control, a material parameter control, and a grid parameter control, and the obtaining of the geometric parameter, the calculation parameter, the material parameter, and the grid parameter according to the first selection operation includes:
and acquiring the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the geometric parameter control, the calculation parameter control, the material parameter control and the grid parameter control.
In combination with the second possible implementation manner of the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the geometric parameters include an aperture diameter, a step curvature radius, and a step height; the calculated parameters include displacement load; the material parameters comprise pipeline material elastoplasticity constitutive relation parameters, geotechnical model material parameters, pipeline material model, density, elastic modulus and Poisson ratio, wherein the pipeline material elastoplasticity constitutive relation parameters comprise pipeline model, pipeline outer diameter and pipeline wall thickness, and the geotechnical model material parameters comprise geotechnical type, density, elastic modulus and Poisson ratio; the grid parameters comprise calculation parameters, and the calculation parameters comprise parallel calculation, the number of Central Processing Units (CPUs), the size of a pipeline grid, the size of a rock-soil grid and the size of a step grid.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the selecting operation further includes a fourth selecting operation, the fourth selecting operation includes a rock-soil model control, a rock-soil grid control, a pipeline model control, and a pipeline grid control, the assembly body model includes a rock-soil model, a rock-soil grid model, a pipeline model, and a pipeline grid model, and the method further includes:
and respectively checking the rock-soil model, the rock-soil grid model, the pipeline model and the pipeline grid model according to the rock-soil model control, the rock-soil grid control, the pipeline model control and the pipeline grid control.
In a second aspect, embodiments of the present invention further provide a stepped-hole-based back-dragging computing device, where the device includes:
the selection operation acquisition unit is used for acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation;
a parameter obtaining unit, configured to obtain a geometric parameter, a calculation parameter, a material parameter, and a grid parameter according to the first selection operation;
a generating unit for generating an assembly model from the geometric parameters, the calculation parameters, the material parameters and the mesh parameters according to the second selection operation;
the judging unit is used for judging whether the assembling body model meets the requirements or not;
and the calculating unit is used for calculating the assembling body model according to the third selection operation under the condition of meeting the requirement to generate a cloud picture and a back-dragging force curve.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the third selecting operation includes a cloud image computing control and a curve generating control, and the computing unit includes:
if the third selection operation is the cloud picture calculation control, calculating the assembling body model to generate the cloud picture;
and if the third selection operation is the curve generation control, calculating the assembling body model to generate the back dragging force curve.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the first selection operation includes a geometric parameter control, a calculation parameter control, a material parameter control, and a grid parameter control, and the parameter obtaining unit includes:
and acquiring the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the geometric parameter control, the calculation parameter control, the material parameter control and the grid parameter control.
In combination with the second possible implementation manner of the second aspect, the present embodiments provide a third possible implementation manner of the second aspect, wherein the geometric parameters include an aperture diameter, a step curvature radius, and a step height; the calculated parameters include displacement load; the material parameters comprise pipeline material elastoplasticity constitutive relation parameters, geotechnical model material parameters, pipeline material model, density, elastic modulus and Poisson ratio, wherein the pipeline material elastoplasticity constitutive relation parameters comprise pipeline model, pipeline outer diameter and pipeline wall thickness, and the geotechnical model material parameters comprise geotechnical type, density, elastic modulus and Poisson ratio; the grid parameters comprise calculation parameters, and the calculation parameters comprise parallel calculation, the number of Central Processing Units (CPUs), the size of a pipeline grid, the size of a rock-soil grid and the size of a step grid.
With reference to the second aspect, an embodiment of the present invention provides a fourth possible implementation manner of the second aspect, where the selecting operation further includes a fourth selecting operation, the fourth selecting operation includes a rock-soil model control, a rock-soil mesh control, a pipeline model control, and a pipeline mesh control, the assembly body model includes a rock-soil model, a rock-soil mesh model, a pipeline model, and a pipeline mesh model, and the apparatus further includes:
and the viewing unit is used for respectively viewing the rock-soil model, the rock-soil grid model, the pipeline model and the pipeline grid model according to the rock-soil model control, the rock-soil grid control, the pipeline model control and the pipeline grid control.
The embodiment of the invention provides a back dragging calculation method and a back dragging calculation device based on a stepped hole, which comprise the following steps: acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation; acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation; generating an assembly body model from the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to a second selection operation; judging whether the assembly body model meets the requirements or not; if the requirement is met, the assembling body model is calculated according to the third selection operation to generate a cloud picture and a back-dragging force curve, so that the influence of resistance caused by the stepped hole on the pipeline back-dragging engineering can be analyzed, and the occurrence of pipe clamping or pipeline deformation damage accidents is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a back dragging calculation method based on a stepped hole according to an embodiment of the present invention;
fig. 2 is a flowchart of step S105 in the stepped-hole-based back dragging calculation method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a related parameter interface display according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a stepped-hole-based back dragging computing device according to a second embodiment of the present invention.
Icon:
10-a selection operation acquisition unit; 20-a parameter acquisition unit; 30-a generating unit; 40-a judgment unit; 50-a calculation unit.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the understanding of the present embodiment, the following detailed description will be given of the embodiment of the present invention.
The first embodiment is as follows:
fig. 1 is a flowchart of a back dragging calculation method based on a stepped hole according to an embodiment of the present invention.
Referring to fig. 1, the method includes the steps of:
step S101, acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation;
step S102, acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to a first selection operation;
step S103, generating an assembly body model from the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to a second selection operation;
step S104, judging whether the assembly body model meets the requirements, and if so, executing step S105; if the requirement is not met, executing the step S101;
and step S105, calculating the assembled body model according to the third selection operation to generate a cloud picture and a back-dragging force curve.
Further, the third selecting operation includes calculating a cloud image control and a curve generating control, and referring to fig. 2, step S105 includes the following steps:
step S201, if the third selection operation is a cloud picture calculation control, calculating the assembly body model to generate a cloud picture;
step S202, if the third selection operation is a curve generation control, calculating the assembly body model to generate a back dragging force curve.
Here, the third selection operation further includes a calculation control and a calculation report control, and when the user clicks the calculation control, the ABAQUS is called to perform analysis and calculation, and the interface displays corresponding progress information. When the progress bar reaches 100%, the ABAQUS is calculated, so that the next operation is carried out, namely, the user clicks a cloud picture calculation control; when the user clicks the calculation report control, the related parameters are written into the notepad, specifically referring to fig. 3, the notepad is opened, and thus the related parameters such as the geometric parameters, the calculation parameters, the material parameters, the grid parameters and the like are displayed.
Further, the first selecting operation includes a geometric parameter control, a calculation parameter control, a material parameter control, and a grid parameter control, and step S102 includes:
and acquiring the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the geometric parameter control, the calculation parameter control, the material parameter control and the grid parameter control.
The grid parameter control is used for dividing the grid, after the grid division is completed, the geometric parameter control, the calculation parameter control and the material parameter control can be returned to check whether the input of each parameter is wrong, and if the input of each parameter is not wrong, the assembling body model is generated according to a second selection operation.
Specifically, the geometric parameters include the diameter of the hole, the radius of curvature of the step, and the height of the step;
calculating parameters including displacement load;
the material parameters comprise pipeline material elastoplasticity constitutive relation parameters, geotechnical model material parameters, and the model, the density, the elastic modulus and the Poisson ratio of the pipeline material, wherein the pipeline material elastoplasticity constitutive relation parameters comprise the model of the pipeline, the outer diameter of the pipeline and the wall thickness of the pipeline, and the geotechnical model material parameters comprise the type, the density, the elastic modulus and the Poisson ratio of the rock;
here, in the pipe material elastic-plastic constitutive relation parameter, the pipe type, the pipe outer diameter, and the pipe wall thickness may be selected and set, and the pipe type, the pipe outer diameter, and the pipe wall thickness may be stored in a database.
The grid parameters comprise calculation parameters, and the calculation parameters comprise parallel calculation, the number of Central Processing Units (CPUs), the size of a pipeline grid, the size of a rock-soil grid and the size of a step grid.
Further, the selecting operation further comprises a fourth selecting operation, the fourth selecting operation comprises a rock-soil model control, a rock-soil grid control, a pipeline model control and a pipeline grid control, the assembly body model comprises a rock-soil model, a rock-soil grid model, a pipeline model and a pipeline grid model, and the method further comprises the following steps:
and respectively checking the rock-soil model, the rock-soil grid model, the pipeline model and the pipeline grid model according to the rock-soil model control, the rock-soil grid control, the pipeline model control and the pipeline grid control.
Here, if some of the geometric parameters, calculation parameters, material parameters, and mesh parameters are set unreasonably and other factors cause the assembly body model not to be successfully generated, the user is required to check the parameter settings.
The embodiment of the invention provides a back dragging calculation method based on a stepped hole, which comprises the following steps: acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation; acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation; generating an assembly body model from the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to a second selection operation; judging whether the assembly body model meets the requirements or not; if the requirement is met, the assembling body model is calculated according to the third selection operation to generate a cloud picture and a back-dragging force curve, so that the influence of resistance caused by the stepped hole on the pipeline back-dragging engineering can be analyzed, and the occurrence of pipe clamping or pipeline deformation damage accidents is reduced.
Example two:
fig. 4 is a schematic diagram of a stepped-hole-based back dragging computing device according to a second embodiment of the present invention.
Referring to fig. 4, the apparatus includes a selection operation acquisition unit 10, a parameter acquisition unit 20, a generation unit 30, a judgment unit 40, and a calculation unit 50.
A selection operation acquisition unit 10 for acquiring a selection operation of a user on an operation interface, the selection operation including a first selection operation, a second selection operation, and a third selection operation;
a parameter obtaining unit 20, configured to obtain a geometric parameter, a calculation parameter, a material parameter, and a mesh parameter according to a first selection operation;
a generating unit 30 for generating an assembly body model from the geometric parameters, the calculation parameters, the material parameters and the mesh parameters according to a second selection operation;
a judging unit 40 for judging whether the assembly body model satisfies the requirement;
and the calculating unit 50 is used for calculating the assembling body model according to the third selection operation under the condition of meeting the requirement to generate a cloud picture and a back-dragging force curve.
Further, the third selecting operation includes a cloud image calculating control and a curve generating control, and the calculating unit 50 includes:
if the third selection operation is a cloud picture calculation control, calculating the assembly body model to generate a cloud picture;
and if the third selection operation is a curve generation control, calculating the assembly body model to generate a back dragging force curve.
Further, the first selection operation includes a geometric parameter control, a calculation parameter control, a material parameter control, and a grid parameter control, and the parameter obtaining unit 20 includes:
and acquiring the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the geometric parameter control, the calculation parameter control, the material parameter control and the grid parameter control.
Further, the geometric parameters include the diameter of the hole, the radius of curvature of the step and the height of the step; calculating parameters including displacement load; the material parameters comprise pipeline material elastoplasticity constitutive relation parameters, geotechnical model material parameters, and the model, the density, the elastic modulus and the Poisson ratio of the pipeline material, wherein the pipeline material elastoplasticity constitutive relation parameters comprise the model of the pipeline, the outer diameter of the pipeline and the wall thickness of the pipeline, and the geotechnical model material parameters comprise the type, the density, the elastic modulus and the Poisson ratio of the rock; the grid parameters comprise calculation parameters, and the calculation parameters comprise parallel calculation, the number of Central Processing Units (CPUs), the size of a pipeline grid, the size of a rock-soil grid and the size of a step grid.
Further, the selecting operation further comprises a fourth selecting operation, the fourth selecting operation comprises a rock-soil model control, a rock-soil grid control, a pipeline model control and a pipeline grid control, the assembly body model comprises a rock-soil model, a rock-soil grid model, a pipeline model and a pipeline grid model, and the device further comprises:
and a viewing unit (not shown) for viewing the rock-soil model, the rock-soil grid model, the pipeline model and the pipeline grid model according to the rock-soil model control, the rock-soil grid control, the pipeline model control and the pipeline grid control respectively.
The embodiment of the invention provides a back dragging calculation device based on a stepped hole, which comprises: acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation; acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation; generating an assembly body model from the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to a second selection operation; judging whether the assembly body model meets the requirements or not; if the requirement is met, the assembling body model is calculated according to the third selection operation to generate a cloud picture and a back-dragging force curve, so that the influence of resistance caused by the stepped hole on the pipeline back-dragging engineering can be analyzed, and the occurrence of pipe clamping or pipeline deformation damage accidents is reduced.
The embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the steps of the stepped hole-based back drag calculation method provided in the above embodiments are implemented.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the stepped hole-based back-dragging calculation method according to the above embodiment are executed.
The computer program product provided in the embodiment of the present invention includes a computer-readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment, which is not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A back dragging calculation method based on a stepped hole is characterized by comprising the following steps:
acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation;
acquiring geometric parameters, calculation parameters, material parameters and grid parameters according to the first selection operation;
generating an assemblage model from the geometric parameters, the calculation parameters, the material parameters, and the mesh parameters according to the second selection operation;
judging whether the assembling body model meets the requirements or not;
if the requirement is met, calculating the assembling body model according to the third selection operation to generate a cloud picture and a back dragging force curve;
the geometric parameters comprise the diameter of the hole, the curvature radius of the step and the height of the step; the calculated parameters include displacement load; the material parameters comprise pipeline material elastoplasticity constitutive relation parameters, geotechnical model material parameters, pipeline material model, density, elastic modulus and Poisson ratio, wherein the pipeline material elastoplasticity constitutive relation parameters comprise pipeline model, pipeline outer diameter and pipeline wall thickness, and the geotechnical model material parameters comprise geotechnical type, density, elastic modulus and Poisson ratio; the grid parameters comprise parallel computation, the number of Central Processing Units (CPU), the size of a pipeline grid, the size of a rock-soil grid and the size of a step grid.
2. The stepped-hole-based drag-back calculation method of claim 1, wherein the third selection operation comprises a cloud-map-calculation control and a curve-generation control, and wherein the calculation of the rigger model according to the third selection operation generates a cloud-map and a drag-back curve comprising:
if the third selection operation is the cloud picture calculation control, calculating the assembling body model to generate the cloud picture;
and if the third selection operation is the curve generation control, calculating the assembling body model to generate the back dragging force curve.
3. The stepped-hole-based pullback calculation method according to claim 1, wherein the first selection operation comprises a geometric parameter control, a calculation parameter control, a material parameter control, and a grid parameter control, and the obtaining of the geometric parameter, the calculation parameter, the material parameter, and the grid parameter according to the first selection operation comprises:
and acquiring the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the geometric parameter control, the calculation parameter control, the material parameter control and the grid parameter control.
4. The stepped-hole-based drag-back calculation method of claim 1, wherein the selection operations further comprise a fourth selection operation, the fourth selection operation comprising a geotechnical model control, a geotechnical mesh control, a pipeline model control, and a pipeline mesh control, the assembly body model comprising a geotechnical model, a geotechnical mesh model, a pipeline model, and a pipeline mesh model, the method further comprising:
and respectively checking the rock-soil model, the rock-soil grid model, the pipeline model and the pipeline grid model according to the rock-soil model control, the rock-soil grid control, the pipeline model control and the pipeline grid control.
5. A stepped bore based drag-back computing device, the device comprising:
the selection operation acquisition unit is used for acquiring selection operations of a user on an operation interface, wherein the selection operations comprise a first selection operation, a second selection operation and a third selection operation;
a parameter obtaining unit, configured to obtain a geometric parameter, a calculation parameter, a material parameter, and a grid parameter according to the first selection operation;
a generating unit for generating an assembly model from the geometric parameters, the calculation parameters, the material parameters and the mesh parameters according to the second selection operation;
the judging unit is used for judging whether the assembling body model meets the requirements or not;
the calculation unit is used for calculating the assembling body model according to the third selection operation under the condition of meeting the requirement to generate a cloud picture and a back-dragging force curve;
the geometric parameters comprise the diameter of the hole, the curvature radius of the step and the height of the step; the calculated parameters include displacement load; the material parameters comprise pipeline material elastoplasticity constitutive relation parameters, geotechnical model material parameters, pipeline material model, density, elastic modulus and Poisson ratio, wherein the pipeline material elastoplasticity constitutive relation parameters comprise pipeline model, pipeline outer diameter and pipeline wall thickness, and the geotechnical model material parameters comprise geotechnical type, density, elastic modulus and Poisson ratio; the grid parameters comprise parallel computation, the number of Central Processing Units (CPU), the size of a pipeline grid, the size of a rock-soil grid and the size of a step grid.
6. The stepped-bore-based pullback computing device of claim 5, wherein the third selection operation comprises computing a cloud control and a curve generation control, the computing unit comprising:
if the third selection operation is the cloud picture calculation control, calculating the assembling body model to generate the cloud picture;
and if the third selection operation is the curve generation control, calculating the assembling body model to generate the back dragging force curve.
7. The stepped-bore-based pullback computing device of claim 5, wherein the first selection operation comprises a geometric parameter control, a computational parameter control, a material parameter control, and a grid parameter control, and the parameter obtaining unit comprises:
and acquiring the geometric parameters, the calculation parameters, the material parameters and the grid parameters according to the geometric parameter control, the calculation parameter control, the material parameter control and the grid parameter control.
8. The stepped-bore-based back haul computing device of claim 5, wherein the selection operations further comprise a fourth selection operation, the fourth selection operation comprising a geotechnical model control, a geotechnical mesh control, a pipeline model control, and a pipeline mesh control, the assembly body model comprising a geotechnical model, a geotechnical mesh model, a pipeline model, and a pipeline mesh model, the device further comprising:
and the viewing unit is used for respectively viewing the rock-soil model, the rock-soil grid model, the pipeline model and the pipeline grid model according to the rock-soil model control, the rock-soil grid control, the pipeline model control and the pipeline grid control.
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| CN102734556A (en) * | 2012-06-15 | 2012-10-17 | 上海市电力公司 | Trenchless construction method for power pipes |
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