水利水电枢纽工程涉水型弃渣场处置方案

doi:10.16843/j.sswc.2022.01.012

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Abstract [Background] The safety and protection measures in residues disposal areas are key concerns during water and soil conservation in water conservation and hydropower projects. The water level and the water flow pattern increases the safety risk in water system-related disposal areas. Previous research on treatment options for the residues disposal areas focused on the design of protective measures. In this study, we focused on the designs for the safety and stability of water system-related disposal areas.[Methods] We re-inspected current standards and specifications and the stability calculation conditions, allowable safety factors, flood control engineering standards, and protective measures requirements for these areas. We then summarized Chinese case studies of such conditions.[Results] The stability, safety, and design of safety measures for the residue disposal areas in each case met the current standards requirements. The slope stability against sliding for the comprehensive residues disposal area was 1.503 under normal operating conditions, but 1.507 (check water level) and 1.410 (Rapid drawdown of water level) under abnormal operating conditions. The stability against sliding of the riverside residues disposal area was 1.23 under normal operating conditions, 1.1 (earthquake), and 1.07 (continuous rainfall period) under abnormal operating conditions. The stability against sliding of the reservoir-type residues disposal area was 1.34 under normal operating conditions and 1.14 (continuous rainfall period) under abnormal operating conditions.[Conculsions] There is a high correlation between the water system-related disposal areas and the design conditions of the water conservation and hydropower project. The residues disposal area should be designed based on the location, operation mode, and the relationships between the water conservation and hydropower project and the residues disposal area. The designs should not only meet the water and soil conservation regulations, but should also meet national standards and water conservation industry standards. Disposal areas that are designed to meet the stability calculation conditions, allowable safety factors, and flood control engineering standards can reduce risks in the residues disposal area.

Key words： residues disposal area water system-related type disposal scheme soil and water conservation water conservancy and hydropower project

Received: 11 March 2020

PACS:	S157
	TV61

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	Articles by authors
	LONG Yihui
	LIANG Gangyi
	TANG Yufeng
	SUN Kunjun
	XIE Zengwu

Cite this article:

LONG Yihui,LIANG Gangyi,TANG Yufeng, et al. Disposal scheme of residues disposal area of water system-related type in water conservancy and hydropower project[J]. SSWC, 2022, 20(1): 91-98.

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http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2022.01.012 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2022/V20/I1/91

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