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Design and construction of landslide preventive construction at Yamasubara hydroelectric power plant site. Yamasubata hatsudensho chiten ni okeru jisuberi taisaku koji no sekkei seko ni tsuite

Journal Article:

Abstract

This paper reports the design and construction of landslide preventive construction at the site of the Yamasubara hydroelectric power plant (with a maximum output of 40,700 kW) and the result of slope stability verification after completion of the construction. The moderate slope on top of the primary slide has sands presumed to be colluvial deposit distributed with a depth of 10 m or more, where occurrence of a secondary slip was feared as triggered by the primary slide. The power plant protective constructions consisted of concrete walls to protect the entire power plant including buildings, and falling stone protective fences installed around the surge tanks. The temporary measures were so set that groundwater levels are lowered to a level that can assure the slide safety factor of 1.0 or more by means of drain boring using the down-the-hole hammer type. The permanent protective construction used rock anchors that are superior in constructability and economy. The stability of sliding slope faces was verified to confirm effects of the protective constructions. The verification included observations of groundwater level behavior, water well-up from drain holes, and movements in the slopes. The result showed that the protective constructions have give sufficient effects. Continued slope  More>>
Authors:
Takase, H; Ito, M; Sakata, M [1] 
  1. The Kyushu Electric Power Co. Inc., Fukuoka (Japan)
Publication Date:
Jul 30, 1993
Product Type:
Journal Article
Reference Number:
NEDO-93-913136; EDB-94-017676
Resource Relation:
Journal Name: Denryoku Doboku (Electric Power Civil Engineering); (Japan); Journal Volume: 246
Subject:
13 HYDRO ENERGY; CONCRETE BLOCKS; FOUNDATIONS; HYDROELECTRIC POWER PLANTS; POWER RANGE 10-100 MW; SOILS; CIVIL ENGINEERING; CONSTRUCTION; SLIP; SLOPE STABILITY; ANCHORS; GROUND WATER; LEVELS; ROCK DRILLING; ROCKS; SAFETY; SURGES; TANKS; WATER REMOVAL; BUILDING MATERIALS; CONTAINERS; DRILLING; ENGINEERING; HYDROGEN COMPOUNDS; MATERIALS; MECHANICAL STRUCTURES; MEGAWATT POWER RANGE; OXYGEN COMPOUNDS; POWER PLANTS; POWER RANGE; REMOVAL; STABILITY; SUPPORTS; WATER; 130200* - Hydro Energy- Site Geology & Meteorology; 130800 - Hydro Energy- Health & Safety- (1990-)
OSTI ID:
5744134
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0386-2895; CODEN: DEDODL
Submitting Site:
NEDO
Size:
Pages: 18-26
Announcement Date:
Feb 01, 1994

Journal Article:

Citation Formats

Takase, H, Ito, M, and Sakata, M. Design and construction of landslide preventive construction at Yamasubara hydroelectric power plant site. Yamasubata hatsudensho chiten ni okeru jisuberi taisaku koji no sekkei seko ni tsuite. Japan: N. p., 1993. Web.
Takase, H, Ito, M, & Sakata, M. Design and construction of landslide preventive construction at Yamasubara hydroelectric power plant site. Yamasubata hatsudensho chiten ni okeru jisuberi taisaku koji no sekkei seko ni tsuite. Japan.
Takase, H, Ito, M, and Sakata, M. 1993. "Design and construction of landslide preventive construction at Yamasubara hydroelectric power plant site. Yamasubata hatsudensho chiten ni okeru jisuberi taisaku koji no sekkei seko ni tsuite." Japan.
@misc{etde_5744134,
title = {Design and construction of landslide preventive construction at Yamasubara hydroelectric power plant site. Yamasubata hatsudensho chiten ni okeru jisuberi taisaku koji no sekkei seko ni tsuite}
author = {Takase, H, Ito, M, and Sakata, M}
abstractNote = {This paper reports the design and construction of landslide preventive construction at the site of the Yamasubara hydroelectric power plant (with a maximum output of 40,700 kW) and the result of slope stability verification after completion of the construction. The moderate slope on top of the primary slide has sands presumed to be colluvial deposit distributed with a depth of 10 m or more, where occurrence of a secondary slip was feared as triggered by the primary slide. The power plant protective constructions consisted of concrete walls to protect the entire power plant including buildings, and falling stone protective fences installed around the surge tanks. The temporary measures were so set that groundwater levels are lowered to a level that can assure the slide safety factor of 1.0 or more by means of drain boring using the down-the-hole hammer type. The permanent protective construction used rock anchors that are superior in constructability and economy. The stability of sliding slope faces was verified to confirm effects of the protective constructions. The verification included observations of groundwater level behavior, water well-up from drain holes, and movements in the slopes. The result showed that the protective constructions have give sufficient effects. Continued slope stability control is important. 16 figs., 7 tabs.}
journal = {Denryoku Doboku (Electric Power Civil Engineering); (Japan)}
volume = {246}
journal type = {AC}
place = {Japan}
year = {1993}
month = {Jul}
}