Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for calculating safety factor of earth-rock dam longitudinal reinforcement

A technology of safety factor and calculation method, which is applied in the field of calculation of safety factor of longitudinal reinforcement of earth-rock dams

Active Publication Date: 2019-09-20
梁军
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention is aimed at the problem that there is no method or calculation formula for the analysis of the safety factor of the longitudinal reinforcement in the prior art; it provides a calculation method for the safety factor of the longitudinal reinforcement of the earth-rock dam

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for calculating safety factor of earth-rock dam longitudinal reinforcement
  • Method for calculating safety factor of earth-rock dam longitudinal reinforcement
  • Method for calculating safety factor of earth-rock dam longitudinal reinforcement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a calculation method for the safety factor of the longitudinal reinforcement of an earth-rock dam, the calculation method is

[0032] In the formula: ξ 0 - force safety factor; P p -Passive pressure formed by the upstream and downstream dam body rockfill on the longitudinal reinforcement; P a - The active pressure formed by the rockfill of the upstream and downstream dam bodies on the longitudinal reinforcement.

[0033] Among them: during the completion period, there is theoretically a static earth pressure relationship between the upstream and downstream rockfill body and the reinforcement as the retaining wall in this working condition. active earth pressure, the other party will inevitably produce resistive passive earth pressure, assuming that the upstream party exerts active pressure on the reinforced body core wall, then the downstream rockfill will generate passive earth pressure, thus, the force safety factor ξ 0 :

[0034] ...

Embodiment 2

[0041] On the basis of Example 1, when ρ 1 = ρ 2 , beta 1 = β 2 , the safety factor

[0042]

[0043] In the formula: ——The internal friction angle of the upstream and downstream rockfill;

[0044] β——the slope angle of the upstream and downstream dam slopes; where That is, the design value of the slope of the dam body cannot exceed the internal friction angle of the dam construction material (rockfill material, etc.).

Embodiment 3

[0046] On the basis of Example 2, when hour, When it is a critical design state ( time), the minimum force safety factor value of the longitudinal reinforcement body, obviously this value should be close to the dam slope stability factor value obtained through the slope stability analysis.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for calculating the safety factor of an earth-rock dam longitudinal reinforcement, and belongs to the technical field of earth-rock dam longitudinal reinforcements. The rough problem that an earth-rock dam is built by experience in the prior art is solved. The method for calculating the safety factor of the earth-rock dam longitudinal reinforcement refers to xi=P / P, in the formula, xi is a stress safety factor, P is the passive pressure of and upstream and downstream dam body enrockment on the longitudinal reinforcement, and P is the active pressure of the and upstream and downstream dam body enrockment on the longitudinal reinforcement; and the theoretical guiding role is played in the specific construction process.

Description

technical field [0001] The invention relates to the technical field of longitudinal reinforcements of earth-rock dams, in particular to a method for calculating the safety factor of longitudinal reinforcements of earth-rock dams. Background technique [0002] According to relevant historical records, the history of human beings is actually a history of struggle and running-in with nature represented by water. The "Guinness Book of World Records" records that the world's oldest dam is a block built in Jordan in 3200 BC for water supply. The stone slope protection earth dam has a history of more than 5,200 years. This may be the earliest evidence of human beings' struggle with water. The history of human dam building is divided into three stages: [0003] The first stage is the ancient dam, that is, before the middle of the 19th century, the dam was built based on experience; [0004] The second stage is the modern dam, that is, from the middle of the 19th century to the beg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E02B7/06
CPCE02B7/06
Inventor 梁军
Owner 梁军