EVALUATION METHOD OF PILE COMPOSED OF SOIL CEMENT COLUMN ROW WALL

• Main Authors: MIZUMOTO MINORU, WATANABE KOJI, ENOMOTO HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 06.07.2017
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

PROBLEM TO BE SOLVED: To provide an evaluation method of a pile which is composed of a soil cement column row wall which can evaluate an allowable vertical support force in order to be used as permanent piles even if the soil cement column row wall is one which takes into consideration only a function as a temporary retaining wall.SOLUTION: Each of a plurality of soil cement columns in which core materials at a soil cement column row wall are embedded is regarded as a single pile in order to use the soil cement column row wall which functions as a temporary retaining wall as permanent piles of a building which is formed by constructing an underground portion by using the temporary retaining wall, both an ultimate support force which is defined from the ground, and an ultimate support force which is defined from an allowable stress degree of a pile material are calculated, a smaller value of either of the ultimate support forces is selected as an ultimate support force of the single pile, and an allowable vertical support force of the pile is calculated.SELECTED DRAWING: Figure 1 【課題】仮設土留め壁としての機能のみを考慮し構築したソイルセメント柱列壁であっても、本設杭として利用するべく許容鉛直支持力を評価することの可能な、ソイルセメント柱列壁よりなる杭の評価方法を提供する。【解決手段】仮設山留め壁として機能するソイルセメント柱列壁を、仮設山留め壁を利用して地下部分を構築した構造物の本設杭として利用するべく、ソイルセメント柱列壁における芯材が埋設された複数のソイルセメント柱各々を単杭とみなし、地盤から定まる極限支持力と杭材料の許容応力度から定まる極限支持力の両者を算定し、いずれか小さい方の値を単杭の極限支持力に選定し、杭の許容鉛直支持力を算定する。【選択図】図１