00225530

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コウベ ソウグン ニオケル ジスベリ ニ カンスル ケンキュウ ダイ6ポウ コウベシ Z チク ニオケル ジスベリ ボウシ CIP クイ ノ チョウキ キョドウ ト クイ オ フクム シャメン ノ アンテイ カイセキ

Studies on Landslides in Kobe Group. Part 6 : On the Long-Dated Behavior of Cast-In-Place (C.I.P.) Concrete Piles for the Prevention of Landslides and Stability Analysis of Slope Including Piles at the Field of Z-Section, Kobe City

Japanese (日本語)

神戸大学農学部研究報告

16(1)

135-148

神戸大学農学部

1984

2006-09-15

本文ファイルは、国立情報学研究所CiNiiより提供されたものです。

This paper deals with the results of the continuous measurement on the behavior of C.I.P. concrete piles placed in the slopes for four years at Z-section in Kobe group of the tertiary system and the results of analyses for stability of the slopes including the piles. The results obtained were as follows : 1) Delayed irregularly with rainfall, the changes in groundwater level were from higher (0.5 meters) to lower (2.5 meters) in underground. 2) In the upper parts of piles in a line, changes in the stresses were small, in the lower parts, became larger after the second year and tended to be influenced by changes in groundwater level. 3) Any pile was not destroyed for four years. Hence, piles were expected to have durability. 4) In the piles in a line, the distribution of bending moments showed similar damping waves. 5) In the intermediate piles the distribution of bending moments showed similar damping waves but at 1.5 meters depth from the top of piles showed relatively large values. 6) Though piles were close to next piles, the behavior showed delicate differences. 7) The C.I.P. concrete pile method in situ did not give necessary safety factors for slopes and piles. 8) For safety factors, it was necessary to intensity piles by increasing section area and reforming the quality of piles. 9) For the safety factor of slope 1.2,it was necessary to increase the number of pile lines into 7 to 8 lines.

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