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CONSTRUCTION METHOD OF EARTH RETAINING WALL STRUCTURE, AND EARTH RETAINING WALL STRUCTURE
PROBLEM TO BE SOLVED: To provide a construction method of an earth retaining wall that enhances load bearing capacity of the earth retaining wall to a deep position of a ground and enables deep excavation of a ground on an inner side of the earth retaining wall.SOLUTION: An earth retaining wall 11 is constructed to surround a scheduled excavation location into a ground, and a buttress 13 is constructed on a ground outside of the earth retaining wall. The buttress 13 is constructed using a concrete plate. Then, steps to excavate a ground on an inner side of the earth retaining wall 11 and installing a tie rod 15 between the earth retaining wall 11 and the buttress 13 are repeated. When installing the tie rod 15 in a second layer and deeper beyond, horizontal boring is performed from the earth retaining wall 11 toward the buttress 13, to form an almost horizontal excavation part 17 and a cut part 13a in the ground and on the buttress 13. Then, an edge part of the tie rod 15 on the buttress 13 side is protruded outward from the buttress 13 and cement milk or other solidification material is filled around the tie rod to form a fixing part 20, thus fixing the edge part of the tie rod 15 on the buttress 13 side outside of the buttress 13.SELECTED DRAWING: Figure 6
【課題】地盤の深い位置まで土留壁の耐力を向上させ、土留壁の内側の地盤を深く掘り下げることを可能とする土留壁構造の構築方法等を提供する。【解決手段】地盤の掘削予定箇所を囲むように土留壁１１を構築するとともに、その外側の地盤に控え壁１３を構築する。控え壁１３は、コンクリート板を用いて構築される。その後、土留壁１１の内側の地盤を掘り下げながら、土留壁１１と控え壁１３の間にタイロッド１５を設置する作業を繰り返す。２段目以深のタイロッド１５を設置する際、土留壁１１から控え壁１３に向かって水平ボーリングを行い、略水平方向の掘削部１７、切削部１３ａを地盤および控え壁１３に形成する。そして、タイロッド１５の控え壁１３側の端部を控え壁１３の外側に突出させ、その周囲にセメントミルク等の固化材を充填して定着部２０を形成し、これによりタイロッド１５の控え壁１３側の端部を控え壁１３の外側で定着する。【選択図】図６
CONSTRUCTION METHOD OF EARTH RETAINING WALL STRUCTURE, AND EARTH RETAINING WALL STRUCTURE
PROBLEM TO BE SOLVED: To provide a construction method of an earth retaining wall that enhances load bearing capacity of the earth retaining wall to a deep position of a ground and enables deep excavation of a ground on an inner side of the earth retaining wall.SOLUTION: An earth retaining wall 11 is constructed to surround a scheduled excavation location into a ground, and a buttress 13 is constructed on a ground outside of the earth retaining wall. The buttress 13 is constructed using a concrete plate. Then, steps to excavate a ground on an inner side of the earth retaining wall 11 and installing a tie rod 15 between the earth retaining wall 11 and the buttress 13 are repeated. When installing the tie rod 15 in a second layer and deeper beyond, horizontal boring is performed from the earth retaining wall 11 toward the buttress 13, to form an almost horizontal excavation part 17 and a cut part 13a in the ground and on the buttress 13. Then, an edge part of the tie rod 15 on the buttress 13 side is protruded outward from the buttress 13 and cement milk or other solidification material is filled around the tie rod to form a fixing part 20, thus fixing the edge part of the tie rod 15 on the buttress 13 side outside of the buttress 13.SELECTED DRAWING: Figure 6
【課題】地盤の深い位置まで土留壁の耐力を向上させ、土留壁の内側の地盤を深く掘り下げることを可能とする土留壁構造の構築方法等を提供する。【解決手段】地盤の掘削予定箇所を囲むように土留壁１１を構築するとともに、その外側の地盤に控え壁１３を構築する。控え壁１３は、コンクリート板を用いて構築される。その後、土留壁１１の内側の地盤を掘り下げながら、土留壁１１と控え壁１３の間にタイロッド１５を設置する作業を繰り返す。２段目以深のタイロッド１５を設置する際、土留壁１１から控え壁１３に向かって水平ボーリングを行い、略水平方向の掘削部１７、切削部１３ａを地盤および控え壁１３に形成する。そして、タイロッド１５の控え壁１３側の端部を控え壁１３の外側に突出させ、その周囲にセメントミルク等の固化材を充填して定着部２０を形成し、これによりタイロッド１５の控え壁１３側の端部を控え壁１３の外側で定着する。【選択図】図６
CONSTRUCTION METHOD OF EARTH RETAINING WALL STRUCTURE, AND EARTH RETAINING WALL STRUCTURE
土留壁構造の構築方法および土留壁構造
YASUNAGA MASAMICHI (author)
2017-11-02
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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