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Sandy soil anti-liquefaction reinforcement method based on plant urease induced calcium carbonate deposition (EICP) technology
The invention relates to a sandy soil anti-liquefaction reinforcement method based on a plant urease induced calcium carbonate deposition (EICP) technology. The method comprises the following steps: weighing a certain mass of standard sandy soil sample according to the dry density of 1.46-1.54 g/cm < 3 >; the method comprises the following steps: preparing a urease solution and a cementing solution, and sequentially pouring the urease solution and the cementing solution into a standard sandy soil sample according to a mass ratio of the urease solution to the cementing solution of 1: 1 or 1: 2 or 2: 1 or 3: 2 or 2: 3; the sandy soil is compacted and layered, the number of layers is 4-5, 40 ml-120 mL of urease solution is injected, and then standing is conducted for 30-50 min; then injecting 40-120mL of a cementing solution, and standing for 24-32h after completion of the cementing solution so as to obtain a standard sandy soil sample; the method comprises the following steps: testing a standard sandy soil sample, establishing a constitutive model, and fitting by using a Sigmoid function to obtain an optimal fitting result; the method has the technical effects of high efficiency, environmental protection, remarkable economic benefit and good durability.
一种基于植物脲酶诱导碳酸钙沉积(EICP)技术的砂土抗液化加固方法，按照干密度1.46‑1.54g/cm3称取一定质量的标准砂土试样；制备脲酶溶液和胶结液，并将脲酶溶液与胶结液，依次灌入标准砂土试样中，按照质量比计，脲酶溶液：胶结液＝1:1或1:2或2:1或3:2或2:3；对砂土进行压密分层，层数为4‑5层，注入40ml‑120mL脲酶溶液，然后静置30‑50min；接着注入40ml‑120mL胶结溶液，并在完成后静置24‑32h，得到标准砂土样品；对标准砂土样品进行试验，建立本构模型，使用Sigmoid函数进行拟合，得到最佳的拟合结果；本发明具有高效、环保、经济效益显著，耐久性良好的技术效果。
Sandy soil anti-liquefaction reinforcement method based on plant urease induced calcium carbonate deposition (EICP) technology
The invention relates to a sandy soil anti-liquefaction reinforcement method based on a plant urease induced calcium carbonate deposition (EICP) technology. The method comprises the following steps: weighing a certain mass of standard sandy soil sample according to the dry density of 1.46-1.54 g/cm < 3 >; the method comprises the following steps: preparing a urease solution and a cementing solution, and sequentially pouring the urease solution and the cementing solution into a standard sandy soil sample according to a mass ratio of the urease solution to the cementing solution of 1: 1 or 1: 2 or 2: 1 or 3: 2 or 2: 3; the sandy soil is compacted and layered, the number of layers is 4-5, 40 ml-120 mL of urease solution is injected, and then standing is conducted for 30-50 min; then injecting 40-120mL of a cementing solution, and standing for 24-32h after completion of the cementing solution so as to obtain a standard sandy soil sample; the method comprises the following steps: testing a standard sandy soil sample, establishing a constitutive model, and fitting by using a Sigmoid function to obtain an optimal fitting result; the method has the technical effects of high efficiency, environmental protection, remarkable economic benefit and good durability.
一种基于植物脲酶诱导碳酸钙沉积(EICP)技术的砂土抗液化加固方法，按照干密度1.46‑1.54g/cm3称取一定质量的标准砂土试样；制备脲酶溶液和胶结液，并将脲酶溶液与胶结液，依次灌入标准砂土试样中，按照质量比计，脲酶溶液：胶结液＝1:1或1:2或2:1或3:2或2:3；对砂土进行压密分层，层数为4‑5层，注入40ml‑120mL脲酶溶液，然后静置30‑50min；接着注入40ml‑120mL胶结溶液，并在完成后静置24‑32h，得到标准砂土样品；对标准砂土样品进行试验，建立本构模型，使用Sigmoid函数进行拟合，得到最佳的拟合结果；本发明具有高效、环保、经济效益显著，耐久性良好的技术效果。
Sandy soil anti-liquefaction reinforcement method based on plant urease induced calcium carbonate deposition (EICP) technology
一种基于植物脲酶诱导碳酸钙沉积（EICP）技术的砂土抗液化加固方法
LI GANG (author) / ZHU QINCHEN (author) / LIU QIE (author) / KOU HONGGANG (author) / XI YU (author) / LI YU (author)
2024-11-15
Patent
Electronic Resource
Chinese
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
E02D
FOUNDATIONS
,
Gründungen
/
E04G
SCAFFOLDING
,
Baugerüste
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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