CN109815579B - Slope parameter determination method, computer readable storage medium and terminal device - Google Patents
Slope parameter determination method, computer readable storage medium and terminal device Download PDFInfo
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- CN109815579B CN109815579B CN201910047939.6A CN201910047939A CN109815579B CN 109815579 B CN109815579 B CN 109815579B CN 201910047939 A CN201910047939 A CN 201910047939A CN 109815579 B CN109815579 B CN 109815579B
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Abstract
The invention provides a method for determining a slope parameter, a computer readable storage medium and a terminal device, comprising the following steps: acquiring the volume weight, the cohesive force and the friction coefficient of the soil body of the side slope; determining a safety coefficient, a slope height, a soil mass volume weight, a cohesive force, a friction coefficient and a relational expression between a first constant and a third constant of the side slope, wherein the first constant to the third constant are uniquely determined by a slope angle of the side slope; determining a slope angle and a slope height of a side slope, determining a first constant to a third constant according to the slope angle, and combining a relational expression to obtain a safety coefficient; or determining the slope angle and the safety factor of the side slope, determining a first constant to a third constant according to the slope angle, and combining a relational expression to obtain the slope height; or determining the slope height and the safety coefficient of the side slope, and combining the relational expression to obtain the slope angle. According to the method, the efficiency of calculating the slope parameters is improved by constructing the relational expression among the safety coefficient, the slope height, the soil mass volume weight, the cohesive force, the friction coefficient and the first constant to the third constant of the slope.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering, and particularly relates to a slope parameter determination method, a computer-readable storage medium and a terminal device.
Background
In the practice of slope engineering such as strip mine mining and embankment filling, how to rapidly design reasonable and safe slope angles and slope heights and give accurate safety factors of the side slopes is always a key technical problem concerned in the field of geotechnical engineering. At present, a limit balance method and a strength reduction method are widely applied slope stability analysis methods, but both the two methods need to establish a slope geomechanical model by means of professional numerical analysis software, and the slope safety coefficient can be obtained only by repeated numerical iteration calculation.
Therefore, the conventional slope parameter determination method is complex and has an excessively large calculation amount.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method for determining a side slope parameter, a computer-readable storage medium, and a terminal device, so as to solve a problem in the prior art that a calculation amount is too large in a process of determining a side slope parameter.
The first aspect of the embodiment of the invention provides a method for determining slope parameters, which comprises the following steps:
obtaining the soil mass volume weight gamma, the cohesive force c and the friction coefficient of the side slope
Determining safety factor F, slope height H, soil volume weight gamma, cohesive force c and friction coefficient of the side slope
A relational expression among a first constant m, a second constant n, and a third constant h, wherein in the relational expression, the first constant m, the second constant n, and the third constant h are uniquely determined by a slope angle β of the side slope;
determining a slope angle beta of the side slope and a slope height H of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a safety factor F of the side slope;
or determining a slope angle beta of the side slope and a safety factor F of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a slope height H of the side slope;
or determining the slope height H of the side slope and the safety factor F of the side slope, and combining the relational expression to obtain the slope angle beta of the side slope.
A second aspect of embodiments of the present invention provides a computer-readable storage medium storing computer-readable instructions, which when executed by a processor implement the steps of:
obtaining the volume weight gamma, the cohesive force c and the friction coefficient of the soil body of the side slope
Determining safety coefficient F, slope height H, soil volume weight gamma, cohesive force c and friction coefficient of the side slope
A relational expression among a first constant m, a second constant n, and a third constant h, wherein in the relational expression, the first constant m, the second constant n, and the third constant h are uniquely determined by a slope angle β of the side slope;
determining a slope angle beta of the side slope and a slope height H of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a safety factor F of the side slope;
or determining a slope angle beta of the side slope and a safety coefficient F of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a slope height H of the side slope;
or determining the slope height H of the side slope and the safety factor F of the side slope, and combining the relational expression to obtain the slope angle beta of the side slope.
A third aspect of the embodiments of the present invention provides a terminal device, including a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor, where the processor executes the computer-readable instructions to implement the following steps:
obtaining the soil mass volume weight gamma, the cohesive force c and the friction coefficient of the side slope
Determining safety coefficient F, slope height H, soil volume weight gamma, cohesive force c and friction coefficient of the side slope
A relational expression among a first constant m, a second constant n, and a third constant h, wherein in the relational expression, the first constant m, the second constant n, and the third constant h are uniquely determined by a slope angle β of the side slope;
determining a slope angle beta of the side slope and a slope height H of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a safety factor F of the side slope;
or determining a slope angle beta of the side slope and a safety coefficient F of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a slope height H of the side slope;
or determining the slope height H of the side slope and the safety factor F of the side slope, and combining the relational expression to obtain the slope angle beta of the side slope.
The invention provides a method for determining a slope parameter, a computer readable storage medium and a terminal device, comprising the following steps: acquiring the volume weight, the cohesive force and the friction coefficient of the soil body of the side slope; determining a relational expression among a safety coefficient, a slope height, a soil mass volume weight, a cohesive force, a friction coefficient, a first constant, a second constant and a third constant of the side slope, wherein the first constant, the second constant and the third constant are uniquely determined by a slope angle of the side slope; determining a slope angle of a side slope and a slope height of the side slope, determining a first constant, a second constant and a third constant according to the slope angle of the side slope, and combining a relational expression to obtain a safety coefficient of the side slope; or determining a slope angle of the side slope and a safety coefficient of the side slope, determining a first constant, a second constant and a third constant according to the slope angle of the side slope, and combining a relational expression to obtain the slope height of the side slope; or determining the slope height of the side slope and the safety coefficient of the side slope, and combining the relational expression to obtain the slope angle of the side slope. According to the method, the safety coefficient, the slope height, the soil volume weight, the cohesive force, the friction coefficient, the first constant, the second constant and the third constant of the side slope are constructed, so that the complexity and the calculation amount of the side slope parameter calculation are reduced, and the efficiency of the side slope parameter calculation is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a method for determining slope parameters according to an embodiment of the present invention;
fig. 2 is a structural block diagram of a slope parameter determining apparatus according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a terminal device for determining a slope parameter according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The embodiment of the invention provides a method for determining side slope parameters. With reference to fig. 1, the method comprises:
s101, acquiring the soil mass volume weight gamma, the cohesive force c and the friction coefficient of the slope
In engineering practice, the soil mass volume weight gamma, the cohesive force c and the friction angle of the slope
Can be obtained directly by calculation or measurement, at the friction angle->
The coefficient of friction is known>
Can be obtained directly by calculation.
S102, determining safety factors F, slope height H, soil mass volume weight gamma, cohesive force c and friction coefficient of the side slope
A relational expression among a first constant m, a second constant n, and a third constant h, wherein in the relational expression, the first constant m, the second constant n, and the third constant h are uniquely determined by a slope angle β of the side slope.
Optionally, the safety coefficient F of the side slope, the slope height H, the soil mass volume weight gamma, the cohesive force c and the friction coefficient
The relational expression among the first constant m, the second constant n, and the third constant h is as follows:
in an embodiment of the present invention, there is provided a possible implementation manner in which, when a value of a slope angle β of a slope is determined, a first constant m, a second constant n, and a third constant h are determined by the slope angle β, the method is applied to any one of steps S103 to S105, and the method includes: when the slope angle of the side slope is a preset angle, according to the preset angle, a first constant m, a second constant n and a third constant h corresponding to the preset angle are inquired in a preset relation table, wherein in the preset relation table, the preset angle of the slope angle beta of the side slope and the first constant m, the second constant n and the third constant h corresponding to the preset angle have a unique mapping relation.
Specifically, the preset relationship table is as follows:
| slope angle (beta) | m | n | h |
| 15° | 0.0437 | 0.1657 | 0.1025 |
| 20° | 0.0501 | 0.1954 | 0.09 |
| 25° | 0.0560 | 0.2226 | 0.0827 |
| 30° | 0.0723 | 0.2819 | 0.0863 |
| 35° | 0.0823 | 0.3255 | 0.0802 |
| 40° | 0.0965 | 0.3795 | 0.0807 |
| 45° | 0.1188 | 0.4626 | 0.0833 |
| 50° | 0.1344 | 0.5291 | 0.0792 |
| 55° | 0.1623 | 0.6239 | 0.0814 |
| 60° | 0.1904 | 0.7410 | 0.0806 |
| 65° | 0.1867 | 0.7320 | 0.0691 |
| 70° | 0.1998 | 0.7835 | 0.0599 |
| 75° | 0.2057 | 0.7846 | 0.0510 |
| 80° | 0.2211 | 0.8618 | 0.0400 |
| 85° | 0.2441 | 0.9490 | 0.0276 |
That is, when the angle of the slope angle β is 15 °, the first constant m =0.0437, the second constant n =0.1657, and the third constant h =0.1025;
when the angle of the slope angle β is 20 °, the first constant m =0.0501, the second constant n =0.1954, and the third constant h =0.09;
when the angle of the slope angle β is 25 °, the first constant m =0.0560, the second constant n =0.2226, the third constant 0.0827;
when the angle of the slope angle β is 30 °, the first constant m =0.0723, the second constant n =0.2819, and the third constant 0.0863;
when the angle of the slope angle β is 35 °, the first constant m =0.0823, the second constant n =0.3255, and the third constant 0.0802;
when the angle of the slope angle β is 40 °, the first constant m =0.0965, the second constant n =0.3795, and the third constant 0.0807;
when the angle of the slope angle β is 45 °, the first constant m =0.1188, the second constant n =0.4626, the third constant 0.0833;
when the angle of the slope angle β is 50 °, the first constant m =0.1344, the second constant n =0.5291, and the third constant 0.0792;
when the angle of the slope angle β is 55 °, the first constant m =0.1623, the second constant n =0.6239, the third constant 0.0814;
when the angle of the slope angle β is 60 °, the first constant m =0.1904, the second constant n =0.7410, the third constant 0.0806;
when the angle of the slope angle β is 65 °, the first constant m =0.1867, the second constant n =0.7320, and the third constant 0.0691;
when the angle of the slope angle β is 70 °, the first constant m =0.1998, the second constant n =0.7835, the third constant 0.0599;
when the angle of the slope angle β is 75 °, the first constant m =0.2057, the second constant n =0.7846, the third constant 0.0510;
when the angle of the slope angle β is 80 °, the first constant m =0.2211, the second constant n =0.8618, and the third constant 0.0400;
when the angle of the slope angle β is 85 °, the first constant m =0.2441, the second constant n =0.9490, and the third constant 0.0276.
Based on the preset relation table, when the value of the slope angle beta of the side slope is determined, for example, when the value is beta =15 °, the first constant m =0.0437, the second constant n =0.1657 and the third constant h =0.1025 which correspond to the angle of the slope angle beta of 15 ° can be obtained by inquiring the preset relation table; for example, when the value of the slope angle β of the slope is determined and β =70 °, the first constant m =0.1998, the second constant n =0.7835, and the third constant 0.0599 corresponding to the angle of the slope angle β of 70 ° can be obtained by querying the preset relationship table.
Further, if the angle corresponding to the slope angle β of the side slope does not belong to the angle in the preset relationship table, determining the first constant m, the second constant n, and the third constant h according to the slope angle β of the side slope includes:
determining an angle interval [ beta ] in which the slope angle beta of the side slope is positioned according to the preset relation table 1 ，β 2 ]Wherein, β 1 ＜β＜β 2 ，β 1 And beta 2 Is an angle in the preset relationship table, and beta 2 And beta 1 The difference in angle of (a) is 5 °;
obtaining beta through the preset relation table 1 Corresponding first constant
Second constant->
And a third constant +>
Obtaining beta through the preset relation table 2 Corresponding first constant
Second constant->
And a third constant +>
Calculating a first constant m, a second constant n and a third constant h corresponding to the slope angle beta through the following formula:
for example, when the value of the slope angle β of the side slope is determined and β =17 °, the side is determined according to the preset relationship tableAngle section [ beta ] in which slope angle [ beta ] of slope is located 1 ，β 2 ]At this time, β 1 ＝15°，β 2 ＝20°。
Obtaining beta by inquiring a preset relation table 1 First constant corresponding to 15 deg
Second constant number
And a third constant +>
To obtain beta 2 Corresponding first constant =20 °>
Second constant->
And a third constant +>
And substituting the formula to obtain a first constant m, a second constant n and a third constant h corresponding to the condition that the angle is beta =17 degrees.
S103, determining a slope angle beta of the side slope and a slope height H of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a safety factor F of the side slope.
Optionally, a specific implementation manner of determining the first constant m, the second constant n, and the third constant h through the slope angle β of the side slope may refer to step S102, which is not described again in this step.
Optionally, the safety factor F of the side slope is calculated by the following formula:
in an embodiment of the present invention, the following example is provided:
certain homogeneous side slope height H =8.0m, slope angle beta =60 degrees, soil volume weight gamma =19kN/m 3 Adhesion force c =15kPa, friction angle
By referring to the preset relationship table in step S102, the first constant m =0.1904, the second constant n =0.7410, and the third constant 0.0806 correspond to β =60 °. Therefore, the safety factor of the slope is calculated by the formula as follows:
the safety coefficient of the slope calculated by adopting a limit balance method in the prior art is 1.034, which is very close to the safety coefficient obtained by the application.
S104, determining a slope angle beta of the side slope and a safety coefficient F of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a slope height H of the side slope.
Optionally, a specific implementation manner of determining the first constant m, the second constant n, and the third constant h through the slope angle β of the side slope may refer to step S102, which is not described again in this step.
Optionally, the obtaining of the slope height H of the side slope by combining the relational expression includes:
in an embodiment of the present invention, the following example is provided:
the side slope of a certain artificial filling is planned to be filled by clay, and the soil volume weight of the clay is gamma =18kN/m 3 Adhesion force c =12.3kPa, friction angle
After filling, the safety coefficient of the side slope needs to reach 1.25. Based on the above information, a slope design is performed. How many meters can the slope be filled at the highest if the slope angle β =35 ° of the slope?
At this time, by referring to the preset relationship table in step S102, since the first constant m =0.0823, the second constant n =0.3255, and the third constant 0.0802 correspond to β =35 °, the limit slope height H is calculated by the above equation as:
at this time, the calculation result obtained by the limit balance method in the prior art is as follows: the safety coefficient of the side slope with the limit slope height of 9.39m is equal to 1.245 and is extremely close to a set value with the safety coefficient of 1.25 in the example, and the design method is reasonable.
S105, determining the slope height H of the side slope and the safety factor F of the side slope, and combining the relational expression to obtain the slope angle beta of the side slope.
Optionally, obtaining the slope angle β of the side slope by combining the relational expression includes:
selecting a slope angle beta, and obtaining a corresponding first constant m, a second constant n and a third constant h according to the preset relation table;
h is calculated according to the following formula t ：
Obtaining third constants h and h t Absolute value of the difference of | h-h t If | h-h t If the | is less than or equal to a preset value, determining that the angle corresponding to the slope angle beta is the slope angle of the side slope;
if | h-h t If | is larger than the preset value, the angle corresponding to the slope angle beta is determined again until | h-h t And | is less than or equal to the preset value.
Optionally, the preset value is 0.001.
In an embodiment of the present invention, the following examples are provided:
the side slope of a certain artificial filling is planned to be filled by clay, and the soil volume weight of the clay is gamma =18kN/m 3 Adhesion force c =12.3kPa, friction angle
After filling, the safety coefficient of the side slope needs to reach 1.25. Based on the above information, a slope design is performed. How many degrees can the slope angle of the side slope be filled at maximum if the slope height H =6.0 m?
The first step is as follows: assuming that the slope angle of the side slope is 45 °, by querying the preset relationship table in step S102, a first constant m =0.1188, a second constant n =0.4626, and a third constant 0.0833, h corresponding to the slope angle of the side slope being 45 ° are obtained t The calculated values of (a) are as follows:
obviously, | h i -h t I =0.0833-0.0712=0.0121 > 0.001, and is therefore not satisfactory.
The second step is that: re-determining the slope angle of the side slope, assuming that the slope angle of the side slope is 55 °, querying the preset relationship table in step S102 to obtain a first constant m =0.1623, a second constant n =0.6239, and a third constant 0.0814 corresponding to the slope angle of the side slope of 55 ° t Calculated value of (c) is 0.0906, | h-h t I =0.0906-0.0814=0.0092 > 0.001, and is therefore not satisfactory.
The third step: re-determining the slope angle of the side slope, assuming that the slope angle of the side slope is 50 °, querying the preset relationship table in step S102 to obtain a first constant m =0.1344, a second constant n =0.5291 and a third constant 0.0792, which correspond to the slope angle of the side slope of 50 ° t Calculated value of (b) is 0.0772, | h-h t I =0.0792-0.0782=0.001, and therefore, the limit slope angle of the side slope can be considered to be 50 ° in a substantially satisfactory manner.
And the slope safety coefficient of 50 degrees of the limit slope angle of the slope is calculated to be 1.242 by adopting a limit balance method in the prior art, and is extremely close to a set value of the safety coefficient of 1.25 in the example, so that the design method of the application is reasonable.
The invention provides a method for determining a side slope parameter, which comprises the following steps: acquiring the volume weight, the cohesive force and the friction coefficient of the soil body of the side slope; determining a relational expression among a safety coefficient, a slope height, a soil mass volume weight, a cohesive force, a friction coefficient, a first constant, a second constant and a third constant of the side slope, wherein the first constant, the second constant and the third constant are uniquely determined by a slope angle of the side slope; determining a slope angle of a side slope and a slope height of the side slope, determining a first constant, a second constant and a third constant according to the slope angle of the side slope, and combining a relational expression to obtain a safety coefficient of the side slope; or determining the slope angle of the side slope and the safety coefficient of the side slope, determining a first constant, a second constant and a third constant according to the slope angle of the side slope, and combining a relational expression to obtain the slope height of the side slope; or determining the slope height of the side slope and the safety coefficient of the side slope, and combining the relational expression to obtain the slope angle of the side slope. According to the method, the safety coefficient, the slope height, the soil volume weight, the cohesive force, the friction coefficient, the first constant, the second constant and the third constant of the side slope are constructed, so that the complexity and the calculation amount of the side slope parameter calculation are reduced, and the efficiency of the side slope parameter calculation is improved.
Fig. 2 is a schematic diagram of a slope parameter determining device according to an embodiment of the present invention, and with reference to fig. 2, the device includes: the system comprises a parameter acquisition unit 21, a relational expression determination unit 22, a slope safety coefficient calculation unit 23, a slope height calculation unit 24 and a slope angle calculation unit 25;
a parameter obtaining unit 21 for obtaining the soil bulk density gamma, the cohesive force c and the friction coefficient of the slope
A relational expression determining unit 22 for determining the safety factor F, the slope height H, the soil bulk density gamma, the cohesive force c and the friction coefficient of the slope
A first constant m and a second constant nAnd a third constant h, wherein in the relational expression, the first constant m, the second constant n, and the third constant h are uniquely determined by a slope angle β of the side slope;
a slope safety factor calculation unit 23, configured to determine a slope angle β of the slope and a slope height H of the slope, determine the first constant m, the second constant n, and the third constant H according to the slope angle β of the slope, and obtain a safety factor F of the slope by combining the relational expression;
a slope height calculation unit 24, configured to determine a slope angle β of the slope and a safety factor F of the slope, determine the first constant m, the second constant n, and the third constant H according to the slope angle β of the slope, and obtain a slope height H of the slope by combining the relational expression;
and the slope angle calculation unit 25 is configured to determine a slope height H of the slope and a safety factor F of the slope, and obtain a slope angle β of the slope by combining the relational expression.
Optionally, the safety coefficient F of the side slope, the slope height H, the soil volume weight gamma, the cohesive force c and the friction coefficient
The relational expression among the first constant m, the second constant n and the third constant h is as follows:
optionally, the relational expression determining unit 22 is further configured to:
when the slope angle of the side slope is a preset angle, a first constant m, a second constant n and a third constant h corresponding to the preset angle are inquired in a preset relation table according to the preset angle, wherein in the preset relation table, the preset angle of the slope angle beta of the side slope has a unique mapping relation with the first constant m, the second constant n and the third constant h corresponding to the preset angle.
Optionally, the preset relationship table includes:
when the angle of the slope angle β is 15 °, the first constant m =0.0437, the second constant n =0.1657, the third constant h =0.1025;
when the angle of the slope angle β is 20 °, the first constant m =0.0501, the second constant n =0.1954, and the third constant h =0.09;
when the angle of the slope angle β is 25 °, the first constant m =0.0560, the second constant n =0.2226, the third constant 0.0827;
when the angle of the slope angle β is 30 °, the first constant m =0.0723, the second constant n =0.2819, and the third constant 0.0863;
when the angle of the slope angle β is 35 °, the first constant m =0.0823, the second constant n =0.3255, the third constant 0.0802;
when the angle of the slope angle β is 40 °, the first constant m =0.0965, the second constant n =0.3795, and the third constant 0.0807;
when the angle of the slope angle β is 45 °, the first constant m =0.1188, the second constant n =0.4626, the third constant 0.0833;
when the angle of the slope angle β is 50 °, the first constant m =0.1344, the second constant n =0.5291, and the third constant 0.0792;
when the angle of the slope angle β is 55 °, the first constant m =0.1623, the second constant n =0.6239, the third constant 0.0814;
when the angle of the slope angle β is 60 °, the first constant m =0.1904, the second constant n =0.7410, the third constant 0.0806;
when the angle of the slope angle β is 65 °, the first constant m =0.1867, the second constant n =0.7320, the third constant 0.0691;
when the angle of the slope angle β is 70 °, the first constant m =0.1998, the second constant n =0.7835, the third constant 0.0599;
when the angle of the slope angle β is 75 °, the first constant m =0.2057, the second constant n =0.7846, and the third constant 0.0510;
when the angle of the slope angle β is 80 °, the first constant m =0.2211, the second constant n =0.8618, the third constant 0.0400;
when the angle of the slope angle β is 85 °, the first constant m =0.2441, the second constant n =0.9490, and the third constant 0.0276.
Optionally, if the angle corresponding to the slope angle β of the side slope does not belong to an angle in the preset relationship table, the relational expression determining unit 22 is further configured to:
determining an angle interval [ beta ] in which the slope angle beta of the side slope is positioned according to the preset relation table 1 ，β 2 ]Wherein, β 1 ＜β＜β 2 ，β 1 And beta 2 Is an angle in the preset relationship table, and beta 2 And beta 1 The difference in angle of (a) is 5 °;
obtaining beta through the preset relation table 1 Corresponding first constant
Second constant->
And a third constant +>
Obtaining beta through the preset relation table 2 Corresponding first constant
Second constant->
And a third constant +>
Calculating a first constant m, a second constant n and a third constant h corresponding to the slope angle beta by the following formula:
optionally, the slope safety factor calculating unit 23 is configured to:
calculating the safety factor F of the slope through the following formula:
optionally, the slope height calculating unit 24 is configured to:
optionally, the slope angle calculating unit 25 is configured to:
selecting a slope angle beta, and obtaining a corresponding first constant m, a second constant n and a third constant h according to the preset relation table;
h is calculated according to the following formula t ：
Obtaining third constants h and h t Absolute value of the difference of | h-h t If | h-h t If the | is less than or equal to a preset value, determining that the angle corresponding to the slope angle beta is the slope angle of the side slope;
if | h-h t If | is larger than the preset value, the angle corresponding to the slope angle beta is determined again until | h-h t And | is less than or equal to the preset value.
The invention provides a device for determining side slope parameters, which obtains the volume weight, the cohesive force and the friction coefficient of a soil body of a side slope; determining a relational expression among a safety coefficient, a slope height, a soil mass volume weight, a cohesive force, a friction coefficient, a first constant, a second constant and a third constant of the side slope, wherein the first constant, the second constant and the third constant are uniquely determined by a slope angle of the side slope; determining a slope angle of a side slope and a slope height of the side slope, determining a first constant, a second constant and a third constant according to the slope angle of the side slope, and combining a relational expression to obtain a safety coefficient of the side slope; or determining a slope angle of the side slope and a safety coefficient of the side slope, determining a first constant, a second constant and a third constant according to the slope angle of the side slope, and combining a relational expression to obtain the slope height of the side slope; or determining the slope height of the side slope and the safety coefficient of the side slope, and combining the relational expression to obtain the slope angle of the side slope. According to the slope parameter determining device provided by the invention, the complexity and the calculated amount of the slope parameter calculation are reduced and the efficiency of the slope parameter calculation is improved by constructing the relational expression among the safety coefficient, the slope height, the soil body volume weight, the cohesive force, the friction coefficient, the first constant, the second constant and the third constant of the slope.
Fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 3, the terminal device 3 of this embodiment includes: a processor 30, a memory 31 and a computer program 32, such as a slope parameter determination program, stored in the memory 31 and executable on the processor 30. The processor 30, when executing the computer program 32, implements the steps in the above-described embodiments of the method for determining slope parameters, such as the steps 101 to 105 shown in fig. 1. Alternatively, the processor 30, when executing the computer program 32, implements the functions of the modules/units in the above-mentioned device embodiments, such as the functions of the modules 21 to 25 shown in fig. 2.
Illustratively, the computer program 32 may be partitioned into one or more modules/units that are stored in the memory 31 and executed by the processor 30 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 32 in the terminal device 3.
The terminal device 3 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 30, a memory 31. Those skilled in the art will appreciate that fig. 3 is only an example of the terminal device 3, and does not constitute a limitation to the terminal device 3, and may include more or less components than those shown, or some components may be combined, or different components, for example, the terminal device may further include an input-output device, a network access device, a bus, etc.
The Processor 30 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be an internal storage unit of the terminal device 3, such as a hard disk or a memory of the terminal device 3. The memory 31 may also be an external storage device of the terminal device 3, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the terminal device 3. The memory 31 is used for storing the computer program and other programs and data required by the terminal device. The memory 31 may also be used to temporarily store data that has been output or is to be output.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of the method for determining a side slope parameter according to any of the above embodiments are implemented.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit 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, which is substantially or partly contributed by the prior art, or all or part of the technical solution may be embodied in 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 perform 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.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (6)
1. A method for determining a slope parameter, the method comprising:
obtaining the soil mass volume weight gamma, the cohesive force c and the friction coefficient of the side slope
Determining safety coefficient F, slope height H, soil volume weight gamma, cohesive force c and friction coefficient of the side slope
A relational expression among a first constant m, a second constant n, and a third constant h, wherein in the relational expression, the first constant m, the second constant n, and the third constant hThe constant h is uniquely determined by the slope angle beta of the side slope;
determining a slope angle beta of the side slope and a slope height H of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a safety factor F of the side slope;
or determining a slope angle beta of the side slope and a safety coefficient F of the side slope, determining the first constant m, the second constant n and the third constant H according to the slope angle beta of the side slope, and combining the relational expression to obtain a slope height H of the side slope;
or determining the slope height H of the side slope and the safety coefficient F of the side slope, and combining the relational expression to obtain the slope angle beta of the side slope;
safety coefficient F of the side slope, slope height H, soil mass volume weight gamma, cohesive force c and friction coefficient
The relational expression among the first constant m, the second constant n and the third constant h is as follows:
the determining the first constant m, the second constant n, and the third constant h according to the slope angle β of the slope includes:
when the slope angle of the side slope is a preset angle, inquiring a first constant m, a second constant n and a third constant h corresponding to the preset angle in a preset relation table according to the preset angle, wherein the preset angle of the slope angle beta of the side slope and the first constant m, the second constant n and the third constant h corresponding to the preset angle have a unique mapping relation in the preset relation table;
the preset relationship table includes:
when the angle of the slope angle β is 15 °, the first constant m =0.0437, the second constant n =0.1657, the third constant h =0.1025;
when the angle of the slope angle β is 20 °, the first constant m =0.0501, the second constant n =0.1954, and the third constant h =0.09;
when the angle of the slope angle β is 25 °, the first constant m =0.0560, the second constant n =0.2226, the third constant 0.0827;
when the angle of the slope angle β is 30 °, the first constant m =0.0723, the second constant n =0.2819, and the third constant 0.0863;
when the angle of the slope angle β is 35 °, the first constant m =0.0823, the second constant n =0.3255, the third constant 0.0802;
when the angle of the slope angle β is 40 °, the first constant m =0.0965, the second constant n =0.3795, and the third constant 0.0807;
when the angle of the slope angle β is 45 °, the first constant m =0.1188, the second constant n =0.4626, the third constant 0.0833;
when the angle of the slope angle β is 50 °, the first constant m =0.1344, the second constant n =0.5291, and the third constant 0.0792;
when the angle of the slope angle β is 55 °, the first constant m =0.1623, the second constant n =0.6239, the third constant 0.0814;
when the angle of the slope angle β is 60 °, the first constant m =0.1904, the second constant n =0.7410, and the third constant 0.0806;
when the angle of the slope angle β is 65 °, the first constant m =0.1867, the second constant n =0.7320, the third constant 0.0691;
when the angle of the slope angle β is 70 °, the first constant m =0.1998, the second constant n =0.7835, the third constant 0.0599;
when the angle of the slope angle β is 75 °, the first constant m =0.2057, the second constant n =0.7846, the third constant 0.0510;
when the angle of the slope angle β is 80 °, the first constant m =0.2211, the second constant n =0.8618, the third constant 0.0400;
when the angle of the slope angle β is 85 °, the first constant m =0.2441, the second constant n =0.9490, the third constant 0.0276;
if the angle corresponding to the slope angle β of the side slope does not belong to the angle in the preset relationship table, the determining the first constant m, the second constant n, and the third constant h according to the slope angle β of the side slope includes:
determining an angle interval [ beta ] in which the slope angle beta of the side slope is positioned according to the preset relation table 1 ，β 2 ]Wherein, β 1 ＜β＜β 2 ，β 1 And beta 2 Is an angle in the preset relation table, and beta 2 And beta 1 The difference in angle of (a) is 5 °;
obtaining beta through the preset relation table 1 Corresponding first constant
Second constant->
And a third constant +>
Obtaining beta through the preset relation table 2 Corresponding first constant
Second constant +>
And a third constant +>
Calculating a first constant m, a second constant n and a third constant h corresponding to the slope angle beta by the following formula:
2. the method for determining slope parameters according to claim 1, wherein the obtaining of the slope safety factor F by combining the relational expression comprises:
calculating the safety factor F of the slope through the following formula:
3. the method for determining slope parameters according to claim 1, wherein the obtaining the slope height H of the slope by combining the relational expression comprises:
4. the method for determining slope parameters according to claim 1, wherein the obtaining the slope angle β of the slope by combining the relational expression comprises:
selecting a slope angle beta, and obtaining a corresponding first constant m, a second constant n and a third constant h according to the preset relation table;
h is calculated according to the following formula t ：
Obtaining third constants h and h t Absolute value of difference | h-h t If | h-h t If the | is less than or equal to a preset value, determining that the angle corresponding to the slope angle beta is the slope angle of the side slope;
if | h-h t If | is larger than the preset value, the angle corresponding to the slope angle beta is determined again until | h-h t And | is less than or equal to the preset value.
5. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
6. A terminal device, characterized in that the terminal device comprises a memory, a processor, a computer program being stored on the memory and being executable on the processor, the processor implementing the steps of the method according to any of the claims 1 to 4 when executing the computer program.
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| CN110414147B (en) * | 2019-07-30 | 2022-12-20 | 石家庄铁道大学 | Method and device for calculating safety coefficient of non-equal-inclination slope and terminal equipment |
| CN110489826B (en) * | 2019-07-30 | 2022-12-20 | 石家庄铁道大学 | Rock slope safety coefficient calculation method and device and terminal equipment |
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