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A platform for research: civil engineering, architecture and urbanism
Double-liquid shield synchronous grouting liquid and preparation method thereof
The invention provides double-liquid type shield synchronous grouting liquid and a preparation method thereof. The double-liquid type shield synchronous grouting liquid is composed of first grout andsecond grout. The volume ratio of the first slurry to the second slurry is 25-30: 1; 1, the first slurry comprises the following components in percentage by weight: 54%-70% of sand, 10%-22% of coal ash, 3%-5% of calcium hydroxide, 1.5%-3.5% of bentonite, 0.1%-0.3% of a high-efficiency water reducing agent and the balance of water, and the second slurry is water glass. According to the invention, the problems of high bleeding rate and poor anti-shearing capability of traditional single-liquid slurry adopted by shield synchronous grouting are solved.
本发明提供了一种双液型盾构同步注浆液及其制备方法，该双液型盾构同步注浆液由第一浆液和第二浆液组成，所述第一浆液与所述第二浆液的体积比为25～30：1，所述第一浆液的成分按重量百分比组成为54％～70％的砂、10％～22％的粉煤灰、3％～5％的氢氧化钙、1.5％～3.5％的膨润土、0.1％～0.3％的高效减水剂和余量的水构成，所述第二浆液为水玻璃。本发明解决了盾构同步注浆采用传统的单液浆存在泌水率高、抗剪切能力差的问题。
Double-liquid shield synchronous grouting liquid and preparation method thereof
The invention provides double-liquid type shield synchronous grouting liquid and a preparation method thereof. The double-liquid type shield synchronous grouting liquid is composed of first grout andsecond grout. The volume ratio of the first slurry to the second slurry is 25-30: 1; 1, the first slurry comprises the following components in percentage by weight: 54%-70% of sand, 10%-22% of coal ash, 3%-5% of calcium hydroxide, 1.5%-3.5% of bentonite, 0.1%-0.3% of a high-efficiency water reducing agent and the balance of water, and the second slurry is water glass. According to the invention, the problems of high bleeding rate and poor anti-shearing capability of traditional single-liquid slurry adopted by shield synchronous grouting are solved.
本发明提供了一种双液型盾构同步注浆液及其制备方法，该双液型盾构同步注浆液由第一浆液和第二浆液组成，所述第一浆液与所述第二浆液的体积比为25～30：1，所述第一浆液的成分按重量百分比组成为54％～70％的砂、10％～22％的粉煤灰、3％～5％的氢氧化钙、1.5％～3.5％的膨润土、0.1％～0.3％的高效减水剂和余量的水构成，所述第二浆液为水玻璃。本发明解决了盾构同步注浆采用传统的单液浆存在泌水率高、抗剪切能力差的问题。
Double-liquid shield synchronous grouting liquid and preparation method thereof
双液型盾构同步注浆液及其制备方法
HUANG JUN (author) / ZHU YANFEI (author) / HUANG DEZHONG (author) / XU JING (author) / FAN JIE (author) / QIU YAN (author) / KOU XIAOYONG (author) / CHEN PEIXIN (author) / WANG XIANZHI (author) / LYU JIN (author)
2020-07-10
Patent
Electronic Resource
Chinese
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