Improved Bishop method directly available for side slope covered with small prefabricated part

Abstract

The invention provides an improved Bishop method directly available for a side slope covered with a small prefabricated part. According to the method, the influence of the weight of the small prefabricated part on the stability of the side slope is considered, the small prefabricated part is equated to a uniformly distributed soil body according to the weight, a Bishop method calculation formula taking the weight of the prefabricated part into consideration is determined according to the arrangement condition of the prefabricated part on the side slope, and then balance calculation of side slope soil strips is carried out. In order to avoid calculation iteration, a calculation formula is simplified, and an improved Bishop simplified formula is obtained. According to the formula, the gravity load Gi of the small prefabricated part is fused into a side slope stability calculation formula in an explicit form, and the side slope stability coefficient considering the small prefabricated part is directly obtained and used for determining whether the side slope is stable or not. According to the method, the problem of direct calculation of the analysis of the stability safety coefficient of the side slope covered with the small prefabricated part in traditional analysis is solved, the calculation speed and precision of the analysis of the stability safety coefficient of the side slope are obviously improved, and the engineering calculation range of the Bishop method is expanded.

Description

technical field

[0001] The invention relates to the technical field of slope stability analysis, in particular to an improved Bishop method which can be directly applied to slopes covered with small prefabricated components. Background technique

[0002] Small prefabricated components have the advantages of regular and beautiful appearance, less damage to the environment, easy mechanized construction, and easy control of construction quality. In recent years, they have been more and more used in slope protection. The stability of the slope is directly related to the safety of the slope. Therefore, it is necessary to carry out the stability analysis of slopes covered with small prefabricated elements.

[0003] At present, in the design of slope protection using small prefabricated components, the waterproof and drainage effect of the components on the slope is mainly considered, but the influence of the component's own weight on the stability of the slope is less analyzed. ...

Examples

Embodiment approach

[0029] As an implementable manner, this step specifically includes the following sub-steps:

[0030] S1021: Considering the gravity load of small prefabricated components, convert the small prefabricated components into equivalent fill according to the equal weight, use the 4.5H line method to determine the center of the sliding slope surface, and determine the Bishop method calculation diagram considering the weight of the prefabricated components, such as figure 2 as shown, figure 2 Among them, "1" represents the K value curve; "2" represents the auxiliary line of the center of the circle; "3" represents the most dangerous sliding surface; "M" represents the prefabricated component for slope protection, and "h 0 "is the equivalent height of the soil converted from the external load, if the load is not included, h 0 = 0;i 0 is the slope slope;

[0031] Specifically, in the process of determining the center of the sliding slope surface, the slope calculation height H=h 1...

technical field

[0001] The invention relates to the technical field of slope stability analysis, in particular to an improved Bishop method which can be directly applied to slopes covered with small prefabricated components. Background technique

[0002] Small prefabricated components have the advantages of regular and beautiful appearance, less damage to the environment, easy mechanized construction, and easy control of construction quality. In recent years, they have been more and more used in slope protection. The stability of the slope is directly related to the safety of the slope. Therefore, it is necessary to carry out the stability analysis of slopes covered with small prefabricated elements.

[0003] At present, in the design of slope protection using small prefabricated components, the waterproof and drainage effect of the components on the slope is mainly considered, but the influence of the component's own weight on the stability of the slope is less analyzed. ...

Examples

Embodiment approach

[0029] As an implementable manner, this step specifically includes the following sub-steps:

[0030] S1021: Considering the gravity load of small prefabricated components, convert the small prefabricated components into equivalent fill according to the equal weight, use the 4.5H line method to determine the center of the sliding slope surface, and determine the Bishop method calculation diagram considering the weight of the prefabricated components, such as figure 2 as shown, figure 2 Among them, "1" represents the K value curve; "2" represents the auxiliary line of the center of the circle; "3" represents the most dangerous sliding surface; "M" represents the prefabricated component for slope protection, and "h 0 "is the equivalent height of the soil converted from the external load, if the load is not included, h 0 = 0;i 0 is the slope slope;

[0031] Specifically, in the process of determining the center of the sliding slope surface, the slope calculation height H=h 1...

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