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An Optimal Calculation Method for Landslide Soaking Line and Thrust Force During Reservoir Operation Period

A technology for optimizing calculations and soaking lines, applied in calculations, design optimization/simulation, instruments, etc., can solve the problem of high engineering safety reserve and cost, landslide residual thrust and stability coefficient cannot reflect the real state of the landslide, and does not meet the requirements of the Three Gorges reservoir area. Operating conditions and other issues to achieve the effect of saving project cost

Active Publication Date: 2021-12-10
重庆市地质矿产勘查开发局107地质队
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This is obviously not in line with the actual operating conditions of the Three Gorges Reservoir area in the past ten years
Especially for large hydraulic landslides on the banks of reservoirs, calculations using existing methods often make the obtained landslide residual thrust and stability coefficient unable to reflect the real state of the landslide, resulting in high safety reserves and construction costs of the project

Method used

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  • An Optimal Calculation Method for Landslide Soaking Line and Thrust Force During Reservoir Operation Period
  • An Optimal Calculation Method for Landslide Soaking Line and Thrust Force During Reservoir Operation Period
  • An Optimal Calculation Method for Landslide Soaking Line and Thrust Force During Reservoir Operation Period

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Embodiment

[0079] Example: such as figure 1 Shown, a kind of landslide seepage line and thrust optimization calculation method during reservoir operation period, the implementation steps of the present invention are:

[0080] Step 1. Obtain the reservoir water level fluctuation curve. For example, for the Three Gorges reservoir area, through years of monitoring the water level line, the reservoir water level fluctuation curve for the past ten years since the 175-meter impoundment can be obtained, and further according to the key characteristic points of the reservoir water level fluctuation curve, Generalize the generalized curve of reservoir water level fluctuation for many years, such as figure 2 shown.

[0081] Step 2. The calculation parameters of the landslide can be obtained by collecting survey reports, field surveys and tests. For example, the large hydraulic landslide on the bank of the Three Gorges Reservoir-Taping landslide in this embodiment, the engineering geological par...

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Abstract

This application relates to a landslide infiltration line and thrust optimization calculation method during the operation period of a reservoir, which includes step 1, obtaining the reservoir water level fluctuation curve, and generalizing the multi-year reservoir water level operation generalized curve according to the key feature points of the reservoir water level fluctuation curve . Step 2. Obtain the calculation parameters of the landslide by collecting survey reports, field investigations and tests. Step 3. Deduce the calculation formula of the seepage line of the landslide on the bank of the reservoir when the reservoir water level fluctuates continuously, and obtain the change curve of the seepage line of the landslide under the continuous fluctuation of the reservoir water level. Step 4. On the basis of obtaining the calculation formula of the soaking line, calculate and obtain the stability coefficient and residual thrust of the downslope caused by the fluctuation of the reservoir water level. The beneficial effect of the present invention is that the landslide remaining thrust obtained by calculation and the calculation of the stability coefficient are more in line with the real state of the landslide; under the premise of ensuring safety, the engineering cost can be effectively saved, and the combined transfer coefficient method for calculating the infiltration line by the analytical solution The calculation method of is very practical in engineering.

Description

technical field [0001] The invention relates to a landslide seepage line and thrust optimization calculation method during the operation period of a reservoir, belonging to the field of geological disaster prevention and control. Background technique [0002] The Three Gorges Project officially stored water for power generation in June 2003. Since 2008, the water level of the reservoir has fluctuated periodically between 145m and 175m every year. The periodic fluctuation of reservoir water level is one of the main factors that induce reservoir bank landslides. At present, the influence of reservoir water level fluctuation on landslide stability has received extensive attention. Groundwater has a decisive impact on the stability of landslides, so the stability analysis of wading landslides in the reservoir area needs to first determine the position of the infiltration line in the slope. [0003] At present, in the design of reservoir landslide prevention and control enginee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/13G06T17/05
CPCG06F30/20G06F30/13G06T17/05
Inventor 殷跃平张晨阳闫慧侯雪峰肖明友张天贵马飞张志斌伍志石
Owner 重庆市地质矿产勘查开发局107地质队
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