CN115935490B - Anti-skid resistance calculation method, device, equipment and medium based on point safety coefficient - Google Patents
Anti-skid resistance calculation method, device, equipment and medium based on point safety coefficient Download PDFInfo
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Abstract
The invention provides a point safety coefficient-based anti-slip resistance calculation method, a point safety coefficient-based anti-slip resistance calculation device, point safety coefficient-based anti-slip resistance calculation equipment and a point safety coefficient-based anti-slip resistance calculation medium, and relates to the technical field of anti-slip resistance calculation. The sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block; acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block; judging a slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient; and carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance. The invention is used for solving the technical problem that the safety coefficients of different points of landslide and the required anti-skid resistance are not considered in the prior art, so that the anti-skid pile is not placed at a reasonable position during construction design.
Description
Technical Field
The invention relates to the technical field of anti-skid resistance calculation, in particular to a point safety coefficient-based anti-skid resistance calculation method, a point safety coefficient-based anti-skid resistance calculation device, point safety coefficient-based anti-skid resistance calculation equipment and a point safety coefficient-based anti-skid resistance calculation medium.
Background
Because the casualties and property losses caused by the instability of the landslide are not counted, a plurality of landslides are additionally provided with anti-slide piles to improve the safety coefficient of the landslide, the anti-slide piles are designed at the positions of the landslide, the problem that the anti-slide piles bear the landslide thrust is particularly critical is solved, and the reinforcement effect of the anti-slide piles can be exerted only by accurately calculating the landslide thrust at each position of the landslide. In the prior art, the calculation method of the landslide thrust required to be born by the slide-resistant pile is complex and cumbersome, the integral safety coefficient of the slide is generally calculated, the slide-resistant pile is arranged at the tail end position of the slide according to the integral safety coefficient, the safety coefficients of different points of the slide and the required slide-resistant resistance are not considered, and therefore the slide-resistant pile is not placed at a reasonable position during construction design.
Disclosure of Invention
The invention aims to provide a point safety coefficient-based anti-skid resistance calculation method, a point safety coefficient-based anti-skid resistance calculation device, point safety coefficient-based anti-skid resistance calculation equipment and a point safety coefficient-based anti-skid resistance calculation medium, so as to solve the problems. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
in a first aspect, the present application provides a method for calculating an anti-slip resistance based on a point safety factor, including:
vertical slicing is carried out on landslide to obtain a plurality of sliding blocks, and sequencing is carried out on the sliding blocks: the sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block;
acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block;
judging a slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient;
and carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance.
Further, the calculating the sliding force and the second point safety coefficient of each slider under the action of the supporting force according to the attribute information of each slider includes:
acquiring attribute information of a first slider;
calculating the sliding force and the anti-sliding force of the first sliding block under the action of dead weight stress according to the attribute information of the first sliding block;
calculating a first point safety coefficient of the first sliding block according to the sliding force and the anti-sliding force;
calculating a second point safety coefficient of the first sliding block and a supporting force required by the first sliding block based on the first point safety coefficient;
calculating the sliding force of the second sliding block, the second point safety coefficient and the required supporting force under the action of the supporting force required by the first sliding block;
and sequentially calculating the sliding force and the second point safety coefficient of the other sliding blocks under the action of the supporting force required by the last sliding block until the sliding force and the second point safety coefficient of the last sliding block are calculated.
Further, the judging the slider to be reinforced based on the preset safety coefficient and the second point safety coefficient specifically includes:
acquiring a preset safety coefficient;
sequentially judging the magnitude relation between the second point safety coefficient of each sliding block and a preset safety coefficient according to the sequence;
if the second point safety coefficient of the current sliding block is smaller than the preset safety coefficient and the second point safety coefficient of the next sliding block of the current sliding block is larger than or equal to the preset safety coefficient, the current sliding block is the sliding block needing reinforcement.
Further, the step of performing stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance, specifically includes:
acquiring attribute information of a slide block to be reinforced and a supporting force required when the last slide block of the slide block to be reinforced reaches a preset safety coefficient;
calculating to obtain the upward force of the slide block to be reinforced along the sliding surface and the downward force of the sliding surface according to the preset safety coefficient and the supporting force required by the previous slide block when the previous slide block reaches the preset safety coefficient;
the anti-slip resistance required for the slider to be reinforced when the upward and downward sliding surface forces are balanced is calculated.
In a second aspect, the present application also provides a point safety factor-based anti-skid resistance calculation device, comprising:
and a sequencing module: vertical slicing is carried out on landslide to obtain a plurality of sliding blocks, and sequencing is carried out on the sliding blocks: the sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block;
an information acquisition module: acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block;
and a judging module: judging a slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient;
the calculation module: and carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance.
Further, the information acquisition module specifically includes:
a first acquisition unit: acquiring attribute information of a first slider;
a first calculation unit: calculating the sliding force and the anti-sliding force of the first sliding block under the action of dead weight stress according to the attribute information of the first sliding block;
a second calculation unit: calculating a first point safety coefficient of the first sliding block according to the sliding force and the anti-sliding force;
a third calculation unit: calculating a second point safety coefficient of the first sliding block and a supporting force required by the first sliding block based on the first point safety coefficient;
a fourth calculation unit: calculating the sliding force of the second sliding block, the second point safety coefficient and the required supporting force under the action of the supporting force required by the first sliding block;
a fifth calculation unit: and sequentially calculating the sliding force and the second point safety coefficient of the other sliding blocks under the action of the supporting force required by the last sliding block until the sliding force and the second point safety coefficient of the last sliding block are calculated.
Further, the judging module specifically includes:
a third acquisition unit: acquiring a preset safety coefficient;
a second judgment unit: sequentially judging the magnitude relation between the second point safety coefficient of each sliding block and a preset safety coefficient according to the sequence;
if the second point safety coefficient of the current sliding block is smaller than the preset safety coefficient and the second point safety coefficient of the next sliding block of the current sliding block is larger than or equal to the preset safety coefficient, the current sliding block is the sliding block needing reinforcement.
Further, the computing module specifically includes:
fourth acquisition unit: acquiring attribute information of a slide block to be reinforced and a supporting force required when the last slide block of the slide block to be reinforced reaches a preset safety coefficient;
eleventh calculation unit: calculating to obtain the upward force of the slide block to be reinforced along the sliding surface and the downward force of the sliding surface according to the preset safety coefficient and the supporting force required by the previous slide block when the previous slide block reaches the preset safety coefficient;
a twelfth calculation unit: the anti-slip resistance required for the slider to be reinforced when the upward and downward sliding surface forces are balanced is calculated.
In a third aspect, the present application further provides an anti-slip resistance calculation device based on a local point safety factor, including:
a memory for storing a computer program;
and the processor is used for realizing the anti-skid resistance calculation method based on the point safety coefficient when executing the computer program.
In a fourth aspect, the present application further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the above-described anti-skid resistance calculation method based on a point safety coefficient.
The beneficial effects of the invention are as follows:
according to the invention, the stability condition of each part of the landslide can be clearly analyzed by solving the safety coefficient of the local point of the whole landslide, and the stability condition is compared with the preset safety coefficient to intuitively judge the area needing to be reinforced in the landslide. And then carrying out stress analysis on the area needing reinforcement, and calculating the landslide thrust required to be born by the slide-resistant pile. The method is accurate, simple and efficient in calculation, can provide effective and reliable data for construction staff of the engineering, and greatly improves the efficiency of the engineering.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments 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 thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of an anti-skid resistance calculation method based on a point safety coefficient according to an embodiment of the invention;
FIG. 2 is a force analysis model of a slider in an embodiment of the present invention;
FIG. 3 is a landslide model in accordance with an embodiment of the present invention;
FIG. 4 is a graph showing a second point safety coefficient distribution of all sliders in an embodiment of the present invention;
FIG. 5 is a graph showing the required holding force profiles for all sliders in an embodiment of the present invention;
FIG. 6 is a graph showing the distribution of the required holding force for all sliders to reach a predetermined safety factor in an embodiment of the present invention;
FIG. 7 is a schematic diagram of an anti-skid resistance calculation device based on local point safety coefficients according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an anti-skid resistance calculation device based on local point safety coefficients according to an embodiment of the present invention.
The marks in the figure:
01. a sequencing module; 02. an information acquisition module; 021. a first acquisition unit; 022. a first calculation unit; 0221. a sixth calculation unit; 0222. a seventh calculation unit; 023. a second calculation unit; 024. a third calculation unit; 025. a fourth calculation unit; 0251. a second acquisition unit; 0252. an eighth calculation unit; 0253. a ninth calculation unit; 0254. a tenth calculation unit; 0255. a first judgment unit; 026. a fifth calculation unit; 03. a judging module; 031. a third acquisition unit; 032. a second judgment unit; 04. a computing module; 041. a fourth acquisition unit; 042. an eleventh calculation unit; 043. a twelfth calculation unit;
800. an anti-skid resistance calculation device based on the local point safety coefficient; 801. a processor; 802. a memory; 803. a multimedia component; 804. an I/O interface; 805. a communication component.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Example 1:
the embodiment provides an anti-skid resistance calculation method based on a point safety coefficient.
Referring to fig. 1, the method is shown to include:
s1, vertically slicing a landslide to obtain m sliding blocks, and sequencing the sliding blocks: the sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block, namely the mth sliding block;
s2, acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block;
specifically, the step S2 includes:
s21, acquiring attribute information of a first sliding block, wherein the attribute information at least comprises cohesive force, slip plane inclination angle, width, internal friction angle and self-weight stress;
s22, calculating the sliding force and the anti-sliding force of the first sliding block under the action of dead weight stress according to the attribute information of the first sliding block:
specifically, the step S22 includes:
s221, calculating to obtain a sliding force and a normal positive pressure by utilizing the dead weight stress of the first sliding block;
wherein T0 1 Represents the sliding force under the dead weight stress of the first sliding block, N0 1 Represents the normal positive pressure, W, under the action of the dead weight stress of the first slide block 1 For the dead weight stress of the first slider, alpha 1 Is the slip angle of the first slider.
S222, calculating according to the cohesive force, the sliding surface inclination angle, the width, the internal friction angle and the normal positive pressure of the first sliding block to obtain the anti-sliding force:
wherein R0 1 Representing the anti-slip force of the first slider under the action of the dead weight stress, c 1 B is the cohesion of the first slider 1 For the width of the first slider, phi 1 Is the internal friction angle of the first slider.
Wherein T0 1 Represents the sliding force under the dead weight stress of the first sliding block, N0 1 Represents the normal positive pressure, W, under the action of the dead weight stress of the first slide block 1 For the dead weight stress of the first slider, alpha 1 Is the slip angle of the first slider.
S23, calculating a first point safety coefficient of the first sliding block according to the sliding force and the anti-sliding force;
wherein F0 1 Representing a first point security factor.
S24, calculating a second point safety coefficient of the first sliding block and a supporting force required by the first sliding block based on the first point safety coefficient;
specifically, whether the first point safety coefficient is greater than or equal to a preset threshold value is judged:
if yes, the second point safety coefficient is equal to the first point safety coefficient, and the required supporting force of the second sliding block is 0;
when F0 1 When not less than 1, the first slide block can ensure self-stabilization without the need of the second slide block to provide supporting force for the first slide block, namely F1 1 ＝F0 1 、S 1 =0, the S 1 Indicating the required holding force of the second slider.
If not, the second point safety coefficient is enabled to be equal to a preset threshold value, and the supporting force required by the first sliding block is calculated under the condition of meeting the static balance.
When F0 1 <1, the second slider is required to provide supporting force for the first slider, so that F1 1 =1, calculate the first slider to reach the self-stabilizing conditionThe supporting force is as follows:
and (3) calculating to obtain:
preferably, the preset threshold value in this embodiment is 1, which means that the slider reaches the limit balance when the point safety factor of the slider is 1.
S25, calculating the sliding force of the second sliding block, the second point safety coefficient and the required supporting force under the supporting force of the first sliding block;
s26, sequentially calculating the sliding force and the second point safety coefficient of the rest sliding blocks under the supporting force of the last sliding block until the sliding force and the second point safety coefficient of the last sliding block under the supporting force of the penultimate sliding block are calculated.
In this embodiment, the sliding force of the second slider-the mth slider, the first point safety coefficient and the required supporting force are calculated in the same manner except for the first slider, and taking the ith slider as an example, the specific calculation method includes the following steps:
1) Acquiring the dead weight stress of the ith sliding block and the supporting force required by the ith-1 sliding block;
2) Calculating to obtain the sliding force and normal positive pressure of the ith sliding block by utilizing the dead weight stress of the ith sliding block and the required supporting force of the ith-1 sliding block;
wherein T1 i Represents the sliding force under the dead weight stress of the ith sliding block, N1 i Represents the normal positive pressure, W, of the ith slide block under the action of dead weight stress i Is the dead weight stress of the ith slide block alpha i Is the slip angle of the ith slide block, S i-1 Alpha is the supporting force required by the ith-1 slide block i Is the slip angle alpha of the ith slide block i-1 Is the slip angle of the i-1 th slide block.
3) Calculating according to the cohesive force, the sliding surface inclination angle, the width, the internal friction angle and the normal positive pressure of the ith sliding block to obtain the anti-sliding force of the ith sliding block;
wherein R1 i C is the anti-slip force of the ith slide block i B is the cohesive force of the ith slide block i For the width of the ith slider, phi i Is the internal friction angle of the ith sliding block.
4) Calculating a first point safety coefficient of the ith sliding block based on the sliding force and the anti-sliding force;
wherein F0 i Is the first point safety factor of the ith slider.
5) Judging whether the first point safety coefficient is larger than or equal to a preset threshold value 1:
if yes, the second point safety factor is equal to the first point safety factor, and the supporting force required by the second sliding block is 0: F1F 1 i ＝F0 i 、S i =0, wherein F1 i Representing the second point safety coefficient of the ith slider, S i Representing the holding force required for the ith slider;
if not, the second point safety coefficient is equal to the preset threshold value, F0 is set i =1, calculating to obtain the i-th required supporting force under the condition of satisfying the static balance, wherein the specific calculation method is as follows:
and (3) calculating to obtain:
specifically, the step S26 further includes:
s261, acquiring the dead weight stress of the mth sliding block and the required supporting force of the (m-1) th sliding block;
specifically, the dead weight stress W of the mth sliding block is obtained m And the supporting force S required by the m-1 th slide block m-1 ；
S262, calculating the self-weight stress W of the mth sliding block m And supporting force S m-1 Under the action of a sliding force T1 m And a first point safety factor F0 m ；
S263, enabling the second point safety coefficient to be equal to the first point safety coefficient: F1F 1 m ＝FO m 。
S3, judging the slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient;
specifically, the step S3 includes:
s31, acquiring a preset safety coefficient;
in this embodiment, let the preset safety factor be Fs;
s32, sequentially judging the magnitude relation between the second point safety coefficient of each sliding block and the preset safety coefficient according to the sequence;
in this embodiment, starting from the first slider, the second point safety factor F1 is determined in order i The magnitude relation with a preset safety coefficient Fs;
s33, if the second point safety coefficient of the current sliding block is smaller than the preset safety coefficient, and the second point safety coefficient of the next sliding block of the current sliding block is larger than or equal to the preset safety coefficient, the current sliding block is the sliding block needing reinforcement, and specifically:
wherein F1 j+1 A second point safety factor for the j+1th slider,the jth sliding block is a sliding block needing to be reinforced, namely an anti-slide pile is required to be installed on the jth sliding block, so that the safety coefficient of the whole landslide reaches a preset safety coefficient.
S4, carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance;
specifically, the step S4 includes:
s41, acquiring attribute information of a slide block to be reinforced and supporting force required when the last slide block of the slide block to be reinforced reaches a preset safety coefficient;
specifically, the step S41 includes:
the method comprises the steps of carrying out strength reduction on a sliding block needing to be reinforced, wherein the reduction coefficient is a preset safety coefficient Fs, and the supporting force obtained after the strength reduction is as follows:
wherein S is i T And the supporting force required by the ith sliding block reaching a preset safety coefficient after the strength is reduced is represented.
The supporting force S required by the j-1 slide block reaching the preset safety coefficient can be calculated by the formula (12) j-1 T 。
S42, as shown in FIG. 2, calculating to obtain the upward force of the slide block along the slide surface and the downward force of the slide surface to be reinforced according to the preset safety coefficient and the supporting force required by the previous slide block when the previous slide block reaches the preset safety coefficient;
the upward force along the sliding surface includes:
wherein F2, F3, F4 and F5 are parameters, W j Is the dead weight stress of the jth slide block, c j B is the cohesive force of the jth slide i For the width of the jth slider, phi j Is the internal friction angle of the jth sliding block, F Resistance resistor To resist slipping as requiredResistance, alpha j Is the slip angle alpha of the jth slide block j-1 The slip angle of the j-1 th slider.
The downward force along the slide surface includes:
wherein F6 and F7 are parameters.
S43, calculating the anti-slip resistance required by the slide block needing to be reinforced when the upward force along the slide surface and the downward force of the slide surface reach balance.
The equilibrium equation is cut for the j-th slider such that the force up the slide minus the force down the slide equals 0:
the required slip resistance is thus obtained as:
(16)
example 2:
as shown in fig. 3, the present embodiment provides a landslide, c=15, Φ=25, and a point safety factor preset threshold=1; dividing the landslide into 25 sliding blocks, calculating to obtain a second point safety coefficient distribution diagram of the 25 sliding blocks as shown in fig. 4, a required supporting force distribution diagram as shown in fig. 5, table 1 and table 2, and a required supporting force distribution diagram when the 25 sliding blocks reach a preset safety coefficient as shown in fig. 6, table 3 and table 4.
TABLE 1
| Number of slide block | α i /(°) | W i /kN | sinαi | cosαi | | Si | |
| 1 | 1.258 | 434.721 | 0.952 | 0.307 | 15.547 | 118.133 | |
| 2 | 1.258 | 1108.160 | 0.952 | 0.307 | 13.742 | 807.610 | |
| 3 | 0.771 | 1635.142 | 0.697 | 0.717 | 6.387 | 1033.490 | |
| 4 | 0.771 | 1456.511 | 0.697 | 0.717 | 5.303 | 1481.399 | |
| 5 | 0.771 | 1698.597 | 0.697 | 0.717 | 5.810 | 2009.416 | |
| 6 | 0.771 | 2146.849 | 0.697 | 0.717 | 6.868 | 2683.890 | |
| 7 | 0.771 | 2390.007 | 0.697 | 0.717 | 7.137 | 3442.383 | |
| 8 | 0.771 | 2263.907 | 0.697 | 0.717 | 6.352 | 4166.962 | |
| 9 | 0.300 | 3702.527 | 0.296 | 0.955 | 7.798 | 2161.751 | |
| 10 | 0.300 | 2572.663 | 0.296 | 0.955 | 5.694 | 1691.108 | |
| 11 | 0.300 | 2185.413 | 0.296 | 0.955 | 5.040 | 1288.249 | |
| 12 | 0.300 | 2364.691 | 0.296 | 0.955 | 5.694 | 848.749 | |
| 13 | 0.300 | 2256.040 | 0.296 | 0.955 | 5.698 | 425.469 |
TABLE 2
| Number of slide block | α i /(°) | W i /kN | sinαi | cosαi | | Si | |
| 14 | 0.300 | 2203.128 | 0.296 | 0.955 | 5.855 | 7.739 | |
| 15 | 0.300 | 1857.413 | 0.296 | 0.955 | 5.199 | 0.000 | |
| 16 | 0.300 | 1673.731 | 0.296 | 0.955 | 4.922 | 0.000 | |
| 17 | 0.300 | 1480.037 | 0.296 | 0.955 | 4.567 | 0.000 | |
| 18 | 0.300 | 1437.087 | 0.296 | 0.955 | 4.660 | 0.000 | |
| 19 | 0.300 | 1205.426 | 0.296 | 0.955 | 4.107 | 0.000 | |
| 20 | 0.300 | 1635.857 | 0.296 | 0.955 | 5.918 | 0.000 | |
| 21 | 0.065 | 1287.541 | 0.065 | 0.998 | 4.952 | 0.000 | |
| 22 | 0.065 | 1769.003 | 0.065 | 0.998 | 8.386 | 0.000 | |
| 23 | 0.065 | 1363.960 | 0.065 | 0.998 | 9.368 | 0.000 | |
| 24 | 0.068 | 632.452 | 0.068 | 0.998 | 7.585 | 0.000 | |
| 25 | 0.062 | 209.194 | 0.062 | 0.998 | 7.514 | 0.000 |
TABLE 3 Table 3
| Number of slide block | α i /(°) | W i /kN | sinαi | cosαi | | Si | |
| 1 | 1.258 | 434.721 | 0.952 | 0.307 | 15.547 | 216.644 | |
| 2 | 1.258 | 1108.160 | 0.952 | 0.307 | 13.742 | 1027.790 | |
| 3 | 0.771 | 1635.142 | 0.697 | 0.717 | 6.387 | 1469.023 | |
| 4 | 0.771 | 1456.511 | 0.697 | 0.717 | 5.303 | 2105.862 | |
| 5 | 0.771 | 1698.597 | 0.697 | 0.717 | 5.810 | 2852.334 | |
| 6 | 0.771 | 2146.849 | 0.697 | 0.717 | 6.868 | 3800.539 | |
| 7 | 0.771 | 2390.007 | 0.697 | 0.717 | 7.137 | 4861.220 | |
| 8 | 0.771 | 2263.907 | 0.697 | 0.717 | 6.352 | 5870.004 | |
| 9 | 0.300 | 3702.527 | 0.296 | 0.955 | 7.798 | 4322.084 | |
| 10 | 0.300 | 2572.663 | 0.296 | 0.955 | 5.694 | 4261.910 | |
| 11 | 0.300 | 2185.413 | 0.296 | 0.955 | 5.040 | 4208.752 | |
| 12 | 0.300 | 2364.691 | 0.296 | 0.955 | 5.694 | 4148.841 | |
| 13 | 0.300 | 2256.040 | 0.296 | 0.955 | 5.698 | 4089.042 |
TABLE 4 Table 4
| Number of slide block | α i /(°) | W i /kN | sinαi | cosαi | | Si | |
| 14 | 0.300 | 2203.128 | 0.296 | 0.955 | 5.855 | 4027.712 | |
| 15 | 0.300 | 1857.413 | 0.296 | 0.955 | 5.199 | 3671.591 | |
| 16 | 0.300 | 1673.731 | 0.296 | 0.955 | 4.922 | 3347.112 | |
| 17 | 0.300 | 1480.037 | 0.296 | 0.955 | 4.567 | 3057.014 | |
| 18 | 0.300 | 1437.087 | 0.296 | 0.955 | 4.660 | 2771.904 | |
| 19 | 0.300 | 1205.426 | 0.296 | 0.955 | 4.107 | 2529.836 | |
| 20 | 0.300 | 1635.857 | 0.296 | 0.955 | 5.918 | 2196.091 | |
| 21 | 0.065 | 1287.541 | 0.065 | 0.998 | 4.952 | 1308.008 | |
| 22 | 0.065 | 1769.003 | 0.065 | 0.998 | 8.386 | 474.478 | |
| 23 | 0.065 | 1363.960 | 0.065 | 0.998 | 9.368 | 0.000 | |
| 24 | 0.068 | 632.452 | 0.068 | 0.998 | 7.585 | 0.000 | |
| 25 | 0.062 | 209.194 | 0.062 | 0.998 | 7.514 | 0.000 |
As can be seen from fig. 4, the 14 th slider is a slider to which the slide pile needs to be mounted, and the preset safety factor fs=1.5, and the slide resistance F born by the slide pile can be calculated according to formula (16) Resistance resistor Required force distribution of all slides after installation of the slide piles =5937 kNThe diagram is shown in fig. 6.
Example 3:
as shown in fig. 7, the present embodiment provides an anti-slip resistance calculation device based on a local point safety coefficient, the device including:
sequencing module 01: vertical slicing is carried out on landslide to obtain a plurality of sliding blocks, and sequencing is carried out on the sliding blocks: the sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block;
information acquisition module 02: acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block;
judgment module 03: judging a slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient;
calculation module 04: and carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance.
Based on the above embodiments, the information obtaining module 02 specifically includes:
the first acquisition unit 021: acquiring attribute information of a first slider;
the first calculation unit 022: calculating the sliding force and the anti-sliding force of the first sliding block under the action of dead weight stress according to the attribute information of the first sliding block;
the second calculation unit 023: calculating a first point safety coefficient of the first sliding block according to the sliding force and the anti-sliding force;
third calculation unit 024: calculating a second point safety coefficient of the first sliding block and a supporting force required by the first sliding block based on the first point safety coefficient;
fourth calculation unit 025: calculating the sliding force of the second sliding block, the second point safety coefficient and the required supporting force under the action of the supporting force required by the first sliding block;
a fifth calculation unit 026: and sequentially calculating the sliding force and the second point safety coefficient of the other sliding blocks under the action of the supporting force required by the last sliding block until the sliding force and the second point safety coefficient of the last sliding block are calculated.
Based on the above embodiments, the first computing unit 022 specifically includes:
a sixth calculation unit 0221: calculating by utilizing the dead weight stress of the first sliding block to obtain a sliding force and a normal positive pressure;
a seventh calculation unit 0222: and calculating according to the cohesive force, the sliding surface inclination angle, the width, the internal friction angle and the normal positive pressure of the first sliding block to obtain the anti-sliding force.
Based on the above embodiments, the fourth calculating unit 025 specifically includes:
the second acquisition unit 0251: acquiring the dead weight stress of the second sliding block;
the eighth calculation unit 0252: calculating to obtain the sliding force and normal positive pressure of the second sliding block by utilizing the dead weight stress of the second sliding block and the first supporting force;
the ninth calculation unit 0253: calculating according to the cohesive force, the sliding surface inclination angle, the width, the internal friction angle and the normal positive pressure of the second sliding block to obtain the anti-sliding force of the second sliding block;
tenth calculation unit 0254: calculating a first point safety coefficient of the second sliding block based on the sliding force and the anti-sliding force;
first judgment unit 0255: judging whether the first point safety coefficient is larger than or equal to a preset threshold value or not:
if yes, the second point safety coefficient is equal to the first point safety coefficient, and the second supporting force is 0;
if not, the second point safety coefficient is enabled to be equal to a preset threshold value, and the supporting force of the second sliding block is calculated under the condition that static balance is met.
Based on the above embodiments, the determining module 03 specifically includes:
third acquisition unit 031: acquiring a preset safety coefficient;
the second judging unit 032: sequentially judging the magnitude relation between the second point safety coefficient of each sliding block and a preset safety coefficient according to the sequence;
if the second point safety coefficient of the current sliding block is smaller than the preset safety coefficient and the second point safety coefficient of the next sliding block of the current sliding block is larger than or equal to the preset safety coefficient, the current sliding block is the sliding block needing reinforcement.
Based on the above embodiments, the calculating module 04 specifically includes:
fourth acquisition unit 041: acquiring attribute information of a slide block to be reinforced and a supporting force required when the last slide block of the slide block to be reinforced reaches a preset safety coefficient;
eleventh calculation unit 042: calculating to obtain the upward force of the slide block to be reinforced along the sliding surface and the downward force of the sliding surface according to the preset safety coefficient and the supporting force required by the previous slide block when the previous slide block reaches the preset safety coefficient;
twelfth calculation unit 043: the anti-slip resistance required for the slider to be reinforced when the upward and downward sliding surface forces are balanced is calculated.
It should be noted that, regarding the apparatus in the above embodiments, the specific manner in which the respective modules perform the operations has been described in detail in the embodiments regarding the method, and will not be described in detail herein.
Example 4:
corresponding to the above method embodiment, there is further provided an anti-slip resistance calculating device based on a local point safety coefficient in this embodiment, and an anti-slip resistance calculating device based on a local point safety coefficient described below and an anti-slip resistance calculating method based on a point safety coefficient described above may be referred to correspondingly with each other.
FIG. 8 is a block diagram illustrating an anti-skid resistance calculation device 800 based on local point safety coefficients, according to an example embodiment. As shown in fig. 7, the anti-skid resistance calculation device 800 based on the local point safety coefficient may include: a processor 801, a memory 802. The local point security based anti-skid resistance computing device 800 may also include one or more of a multimedia component 803, an i/O interface 804, and a communication component 805.
Wherein the processor 801 is configured to control the overall operation of the anti-skid resistance calculation apparatus 800 based on the local point safety factor, so as to complete all or part of the steps in the above-described anti-skid resistance calculation method based on the point safety factor. The memory 802 is used to store various types of data to support the operation of the anti-skid resistance computing device 800 based on the local point security coefficients, which may include, for example, instructions for any application or method operating on the anti-skid resistance computing device 800 based on the local point security coefficients, as well as application-related data, such as contact data, messages, pictures, audio, video, and the like. The Memory 802 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 803 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 802 or transmitted through the communication component 805. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 804 provides an interface between the processor 801 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is configured to perform wired or wireless communication between the anti-skid resistance calculation device 800 and other devices based on the local point safety coefficient. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near FieldCommunication, NFC for short), 2G, 3G or 4G, or a combination of one or more thereof, the respective communication component 805 may thus comprise: wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the local point safety coefficient based anti-skid resistance calculation device 800 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), digital signal processors (DigitalSignal Processor, abbreviated as DSP), digital signal processing devices (Digital Signal Processing Device, abbreviated as DSPD), programmable logic devices (Programmable Logic Device, abbreviated as PLD), field programmable gate arrays (Field Programmable Gate Array, abbreviated as FPGA), controllers, microcontrollers, microprocessors, or other electronic components for performing the point safety coefficient based anti-skid resistance calculation method described above.
In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the above-described point safety coefficient based anti-skid resistance calculation method. For example, the computer readable storage medium may be the memory 802 described above including program instructions executable by the processor 801 of the local point safety coefficient based anti-skid resistance calculation device 800 to perform the point safety coefficient based anti-skid resistance calculation method described above.
Example 5:
corresponding to the above method embodiment, a computer readable storage medium is also provided in this embodiment, and a computer readable storage medium described below and a method for calculating the anti-skid resistance based on the point safety coefficient described above may be referred to correspondingly with each other.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the point safety coefficient based anti-skid resistance calculation method of the above method embodiments.
The computer readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, which may store program codes.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (8)
1. The anti-skid resistance calculation method based on the point safety coefficient is characterized by comprising the following steps of:
vertical slicing is carried out on landslide to obtain a plurality of sliding blocks, and sequencing is carried out on the sliding blocks: the sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block;
acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block;
judging a slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient;
carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance, wherein the anti-slip resistance comprises the following components:
acquiring attribute information of a slide block to be reinforced and a supporting force required when the last slide block of the slide block to be reinforced reaches a preset safety coefficient;
calculating to obtain the upward force of the slide block to be reinforced along the sliding surface and the downward force of the sliding surface according to the preset safety coefficient and the supporting force required by the previous slide block when the previous slide block reaches the preset safety coefficient;
calculating the anti-slip resistance required by the slide block to be reinforced when the upward force along the slide surface and the downward force of the slide surface reach balance:
wherein j is a slide block needing reinforcement, W j Is the dead weight stress of the jth slide block, c j B is cohesive force j For the width of the jth slider,
is the internal friction angle of the jth sliding block, F Resistance resistor Alpha is the required anti-skid resistance j Is the slip angle alpha of the jth slide block j-1 S is the slip angle of the j-1 th slide block j-1 T The j-1-th slide block is represented by a supporting force required when reaching a preset safety coefficient, and Fs represents the preset safety coefficient.
2. The method for calculating the anti-slip resistance based on the point safety factor according to claim 1, wherein the step of sequentially calculating the sliding force of each slider under the action of the supporting force and the second point safety factor according to the attribute information of each slider comprises the following steps:
acquiring attribute information of a first slider;
calculating the sliding force and the anti-sliding force of the first sliding block under the action of dead weight stress according to the attribute information of the first sliding block;
calculating a first point safety coefficient of the first sliding block according to the sliding force and the anti-sliding force;
calculating a second point safety coefficient of the first sliding block and a supporting force required by the first sliding block based on the first point safety coefficient;
calculating the sliding force of the second sliding block, the second point safety coefficient and the required supporting force under the action of the supporting force required by the first sliding block;
and sequentially calculating the sliding force and the second point safety coefficient of the other sliding blocks under the action of the supporting force required by the last sliding block until the sliding force and the second point safety coefficient of the last sliding block are calculated.
3. The method for calculating the anti-slip resistance based on the point safety factor according to claim 1, wherein the step of judging the slider to be reinforced based on the preset safety factor and the second point safety factor specifically comprises the steps of:
acquiring a preset safety coefficient;
sequentially judging the magnitude relation between the second point safety coefficient of each sliding block and a preset safety coefficient according to the sequence;
if the second point safety coefficient of the current sliding block is smaller than the preset safety coefficient and the second point safety coefficient of the next sliding block of the current sliding block is larger than or equal to the preset safety coefficient, the current sliding block is the sliding block needing reinforcement.
4. An anti-slip resistance calculation device based on local point safety coefficients, comprising:
and a sequencing module: vertical slicing is carried out on landslide to obtain a plurality of sliding blocks, and sequencing is carried out on the sliding blocks: the sliding block at the top of the landslide is made to be the first sliding block, and the sliding block at the bottom of the landslide is made to be the last sliding block;
an information acquisition module: acquiring attribute information of each sliding block, and sequentially calculating the sliding force and the second point safety coefficient of each sliding block under the action of supporting force according to the attribute information of each sliding block;
and a judging module: judging a slide block to be reinforced based on a preset safety coefficient and the second point safety coefficient;
the calculation module: carrying out stress analysis on the slide block to be reinforced, and calculating to obtain the anti-slip resistance required when the slide block to be reinforced is in static balance, wherein the anti-slip resistance comprises the following components:
acquiring attribute information of a slide block to be reinforced and a supporting force required when the last slide block of the slide block to be reinforced reaches a preset safety coefficient;
calculating to obtain the upward force of the slide block to be reinforced along the sliding surface and the downward force of the sliding surface according to the preset safety coefficient and the supporting force required by the previous slide block when the previous slide block reaches the preset safety coefficient;
calculating the anti-slip resistance required by the slide block to be reinforced when the upward force along the slide surface and the downward force of the slide surface reach balance:
wherein j is a slide block needing reinforcement, W j Is the dead weight stress of the jth slide block, c j B is cohesive force j For the width of the jth slider,
is the internal friction angle of the jth sliding block, F Resistance resistor Alpha is the required anti-skid resistance j Is the slip angle alpha of the jth slide block j-1 S is the slip angle of the j-1 th slide block j-1 T The j-1-th slide block is represented by a supporting force required when reaching a preset safety coefficient, and Fs represents the preset safety coefficient.
5. The anti-skid resistance calculation device based on the local point safety factor according to claim 4, wherein the information acquisition module specifically comprises:
a first acquisition unit: acquiring attribute information of a first slider;
a first calculation unit: calculating the sliding force and the anti-sliding force of the first sliding block under the action of dead weight stress according to the attribute information of the first sliding block;
a second calculation unit: calculating a first point safety coefficient of the first sliding block according to the sliding force and the anti-sliding force;
a third calculation unit: calculating a second point safety coefficient of the first sliding block and a supporting force required by the first sliding block based on the first point safety coefficient;
a fourth calculation unit: calculating the sliding force of the second sliding block, the second point safety coefficient and the required supporting force under the action of the supporting force required by the first sliding block;
a fifth calculation unit: and sequentially calculating the sliding force and the second point safety coefficient of the other sliding blocks under the action of the supporting force required by the last sliding block until the sliding force and the second point safety coefficient of the last sliding block are calculated.
6. The anti-skid resistance calculation device based on the local point safety factor according to claim 4, wherein the judging module specifically comprises:
a third acquisition unit: acquiring a preset safety coefficient;
a second judgment unit: sequentially judging the magnitude relation between the second point safety coefficient of each sliding block and a preset safety coefficient according to the sequence;
if the second point safety coefficient of the current sliding block is smaller than the preset safety coefficient and the second point safety coefficient of the next sliding block of the current sliding block is larger than or equal to the preset safety coefficient, the current sliding block is the sliding block needing reinforcement.
7. An anti-skid resistance computing device based on local point security coefficients, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the point safety factor-based anti-skid resistance calculation method according to any one of claims 1 to 3 when executing the computer program.
8. A computer-readable storage medium, characterized by: the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the point safety coefficient-based anti-skid resistance calculation method according to any one of claims 1 to 3.
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| CN105421327A (en) * | 2015-12-11 | 2016-03-23 | 青岛理工大学 | Testing method of anti-slide treatment parameters of high cutting slope |
| CN115374528A (en) * | 2022-10-24 | 2022-11-22 | 西南交通大学 | Slope safety analysis method, system and equipment and readable storage medium |
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| CN115146348A (en) * | 2022-07-01 | 2022-10-04 | 西南交通大学 | Ultra-giant landslide stability analysis method considering influence of earth curvature factors |
| CN115510623B (en) * | 2022-09-02 | 2023-06-13 | 西南交通大学 | Safety coefficient calculation method, device and equipment for slide pile and readable storage medium |
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| CN115374528A (en) * | 2022-10-24 | 2022-11-22 | 西南交通大学 | Slope safety analysis method, system and equipment and readable storage medium |
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