A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide a strength estimation method for a foot protection part, the method being stable regardless of an amount of ground material.SOLUTION: An estimation method for a foot protection part includes: a first step of collecting from a layer 12 in which a foot protection part 32 of the ground is formed, a component of the layer 12 as a first sample; a second step of forming and solidifying plural types of cement milk containing the first sample as aggregate, and from cement-water ratio and compression strength after solidification for the plural types of cement milk, obtaining a relational expression between the cement-water ratio and the compression strength for the cement milk containing the first sample as the aggregate; a third step of injecting cement milk 21 on a bottom part of a drilled pile hole 1 and collecting the injected cement milk 21 as a second sample; a fourth step of removing the aggregate from the second sample; a fifth step of obtaining the cement-water ratio of the second sample from the second sample having the aggregate removed; and a sixth step of estimating the compression strength of the foot protection part 32 from the cement-water ratio of the second sample and the relational expression calculated in the second step.SELECTED DRAWING: Figure 3
【課題】地盤材料の量に関わらず安定した根固め部の強度推定方法を提供する。【解決手段】地盤の根固め部３２が形成される層１２から層１２の構成物を第一の試料として採取する第一の工程と、第一の試料を骨材として含むセメントミルクを複数種類生成して固化させ、それらセメントミルクのセメント水比と固化後の圧縮強度とから、第一の試料を骨材として含むセメントミルクのセメント水比と圧縮強度との関係式を求める第二の工程と、掘削した杭穴１の底部にセメントミルク２１を注入し、注入後のセメントミルク２１を第二の試料として採取する第三の工程と、第二の試料から骨材を除去する第四の工程と、骨材を除去した第二の試料から第二の試料のセメント水比を求める第五の工程と、第二の試料のセメント水比及び第二の工程で算出した関係式から、根固め部３２の圧縮強度を推定する第六の工程と、を有する。【選択図】図３
To provide a strength estimation method for a foot protection part, the method being stable regardless of an amount of ground material.SOLUTION: An estimation method for a foot protection part includes: a first step of collecting from a layer 12 in which a foot protection part 32 of the ground is formed, a component of the layer 12 as a first sample; a second step of forming and solidifying plural types of cement milk containing the first sample as aggregate, and from cement-water ratio and compression strength after solidification for the plural types of cement milk, obtaining a relational expression between the cement-water ratio and the compression strength for the cement milk containing the first sample as the aggregate; a third step of injecting cement milk 21 on a bottom part of a drilled pile hole 1 and collecting the injected cement milk 21 as a second sample; a fourth step of removing the aggregate from the second sample; a fifth step of obtaining the cement-water ratio of the second sample from the second sample having the aggregate removed; and a sixth step of estimating the compression strength of the foot protection part 32 from the cement-water ratio of the second sample and the relational expression calculated in the second step.SELECTED DRAWING: Figure 3
【課題】地盤材料の量に関わらず安定した根固め部の強度推定方法を提供する。【解決手段】地盤の根固め部３２が形成される層１２から層１２の構成物を第一の試料として採取する第一の工程と、第一の試料を骨材として含むセメントミルクを複数種類生成して固化させ、それらセメントミルクのセメント水比と固化後の圧縮強度とから、第一の試料を骨材として含むセメントミルクのセメント水比と圧縮強度との関係式を求める第二の工程と、掘削した杭穴１の底部にセメントミルク２１を注入し、注入後のセメントミルク２１を第二の試料として採取する第三の工程と、第二の試料から骨材を除去する第四の工程と、骨材を除去した第二の試料から第二の試料のセメント水比を求める第五の工程と、第二の試料のセメント水比及び第二の工程で算出した関係式から、根固め部３２の圧縮強度を推定する第六の工程と、を有する。【選択図】図３
STRENGTH DETERMINATION METHOD OF FOOT PROTECTION PORTION
| European Patent Office | 2018
FOUNDATION FOOT PROTECTION STRUCTURE, AND FOUNDATION FOOT PROTECTION METHOD
| European Patent Office | 2021