A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CALCULATION METHOD OF CONTENT OF SILICA IN GROUND AND GROUND STRENGTH ESTIMATION METHOD
To provide a method capable of calculating the content of silica derived from a grouting material in the ground with high accuracy, and a ground strength estimation method using the calculation method.SOLUTION: In a method for calculating the content of silica in the ground which contains alkaline-eluting aluminum and in which a water glass solution-type grouting material is grouted, a correlation between the content of at least one of acid-soluble aluminum, magnesium, and calcium in the ground before the grouting of the grouting material and the content of alkali-soluble silica is obtained, and sample soil of the ground in which the grouting material is grouted is cleaned with an acid solution. The content of the silica in the ground before the grouting of the grouting material is estimated from the content of the one of the three in a detergent drainage liquid drained during the cleaning and the correlation, so that the content of the silica derived from the grouting material is calculated by contrasting a value of the estimation with the content of the silica in the ground in which the grouting material is grouted. A ground strength estimation method calculates the content of the silica on the basis of the method so as to estimate the strength of the ground on the basis of a value of the calculation.SELECTED DRAWING: Figure 1
【課題】地盤の注入材由来のシリカ含有量を高精度で算出することができる方法、及びこの算出方法を利用した地盤の強度推定方法とする。【解決手段】アルカリ溶出性アルミニウムを含み、かつ水ガラス系溶液型注入材が注入された地盤中のシリカ含有量を算出する方法であり、注入材を注入する前における地盤の酸溶解性アルミニウム、マグネシウム、及びカルシウムの少なくともいずれか１種の含有量と、アルカリ溶解性シリカ含有量との相関関係を求めておき、注入材が注入された地盤の試料土を酸性溶液で洗浄し、この洗浄で排出された洗浄排液の前記いずれか１種の含有量及び相関関係から注入材を注入する前の地盤のシリカ含有量を推定し、この推定値と、注入材が注入された地盤のシリカ含有量とを対比することで注入材由来のシリカ含有量を算出することを特徴とする。また、この方法に基づいてシリカ含有量を算出し、この算出値に基づいて地盤の強度を推定することを特徴とする地盤の強度推定方法である。【選択図】図１
CALCULATION METHOD OF CONTENT OF SILICA IN GROUND AND GROUND STRENGTH ESTIMATION METHOD
To provide a method capable of calculating the content of silica derived from a grouting material in the ground with high accuracy, and a ground strength estimation method using the calculation method.SOLUTION: In a method for calculating the content of silica in the ground which contains alkaline-eluting aluminum and in which a water glass solution-type grouting material is grouted, a correlation between the content of at least one of acid-soluble aluminum, magnesium, and calcium in the ground before the grouting of the grouting material and the content of alkali-soluble silica is obtained, and sample soil of the ground in which the grouting material is grouted is cleaned with an acid solution. The content of the silica in the ground before the grouting of the grouting material is estimated from the content of the one of the three in a detergent drainage liquid drained during the cleaning and the correlation, so that the content of the silica derived from the grouting material is calculated by contrasting a value of the estimation with the content of the silica in the ground in which the grouting material is grouted. A ground strength estimation method calculates the content of the silica on the basis of the method so as to estimate the strength of the ground on the basis of a value of the calculation.SELECTED DRAWING: Figure 1
【課題】地盤の注入材由来のシリカ含有量を高精度で算出することができる方法、及びこの算出方法を利用した地盤の強度推定方法とする。【解決手段】アルカリ溶出性アルミニウムを含み、かつ水ガラス系溶液型注入材が注入された地盤中のシリカ含有量を算出する方法であり、注入材を注入する前における地盤の酸溶解性アルミニウム、マグネシウム、及びカルシウムの少なくともいずれか１種の含有量と、アルカリ溶解性シリカ含有量との相関関係を求めておき、注入材が注入された地盤の試料土を酸性溶液で洗浄し、この洗浄で排出された洗浄排液の前記いずれか１種の含有量及び相関関係から注入材を注入する前の地盤のシリカ含有量を推定し、この推定値と、注入材が注入された地盤のシリカ含有量とを対比することで注入材由来のシリカ含有量を算出することを特徴とする。また、この方法に基づいてシリカ含有量を算出し、この算出値に基づいて地盤の強度を推定することを特徴とする地盤の強度推定方法である。【選択図】図１
CALCULATION METHOD OF CONTENT OF SILICA IN GROUND AND GROUND STRENGTH ESTIMATION METHOD
地盤のシリカ含有量算出方法及び地盤の強度推定方法
ONISHI TAKAAKI (author) / MURATA SHINICHI (author) / AKIMOTO TEPPEI (author)
2024-09-09
Patent
Electronic Resource
Japanese
CALCULATION METHOD OF CONTENT OF SILICA IN GROUND AND GROUND STRENGTH ESTIMATION METHOD
| European Patent Office | 2024
CALCULATION METHOD OF CONTENT OF SILICA IN GROUND AND GROUND STRENGTH ESTIMATION METHOD
| European Patent Office | 2024
| European Patent Office | 2024
GROUND STRENGTH ESTIMATION METHOD, AND GROUND STRENGTH ESTIMATION PROGRAM
| European Patent Office | 2021
GROUND STRENGTH CALCULATION DEVICE AND GROUND STRENGTH CALCULATION PROGRAM
| European Patent Office | 2020