DESIGN CRITERIA APPLIED FOR THE LOWER PRESSURE TUNNEL OF THE NORTH FORK STANISLAUS RIVER HYDROELECTRIC PROJECT IN CALIFORNIA

被引：15

作者：

SCHLEISS, A

机构：

[1] Electrowatt Engineering Ltd, Switzerland

来源：

ROCK MECHANICS AND ROCK ENGINEERING | 1988年 / 21卷 / 03期

关键词：

Hydraulic Structures - Hydroelectric Power Plants--Intakes - River Basin Projects--Stanislaus River; California - Rock Mechanics - Water Supply Tunnels--Design;

D O I：

10.1007/BF01032578

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The application of various criteria and certain new approaches to the design of the Lower Collierville Pressure Tunnel of the North Fork Stanislaus River Hydropower Project in California is shown. With a maximum internal water pressure of 72 bar, Lower Collierville Tunnel will be the highest stressed pressure tunnel in the world not situated in granitic rocks. The geological conditions and the results of the geotechnical investigations are described. For the steel-lined portion of the tunnel, the approach for determining the bearing capacity of the rock mass and the load sharing between steel and rock is discussed. The required length of steel liner was determined on the basis of rock mechanical (hydraulic jacking) and rock hydraulic (seepage losses and extension of saturated zone due to seepage) criteria. The effects of mechanical-hydraulic interaction are taken into account. The expected water losses and the sealing effect of the grouting are estimated.

引用

页码：161 / 181

页数：21

共 15 条

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[2]

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[3]

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[4]

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[5]

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[6]

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[7]

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[8]

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[9]

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[10]

Schneebeli G., 1966, HYDRAULIQUE SOUTERRA

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