Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shield grouting slurry, preparation method and construction device thereof
The invention relates to shield grouting slurry, a preparation method and a construction device thereof. The preparation method of the shield grouting slurry comprises the following steps that 30-70 parts of lime, 250-350 parts of fly ash, 80-120 parts of bentonite, 350-550 parts of fine sand and 350-450 parts of water are selected to be mixed and stirred by mass to obtain first mixed slurry; and30-70 parts of lime is selected to be mixed and stirred with the first mixed slurry, and the shield grouting slurry is obtained. Compared with traditional cement-based grout, the shield grouting slurry is high in water-retaining property and dilution resistance, small in percentage of contraction and high in percentage of consolidation; meanwhile, the obtained shield grouting slurry is high in consistency; and the shield grouting slurry can be poured into the gap between a shield tunneling machine body and a soil body through a radial hole of the shield tunneling machine body and can support the soil body quickly and effectively, and accordingly, safety accidents such as land subsidence are eliminated.
本发明涉及一种盾体注浆浆液、制备方法及其施工装置，盾体注浆浆液的制备方法包括以下步骤：以质量份计，选取30份～70份石灰、250份～350份粉煤灰、80份～120份膨润土、350份～550份细砂及350份～450份水进行混合并搅拌，得到第一混合浆液；选取30份～70份石灰与第一混合浆液混合并搅拌，得到盾体注浆浆液。相比传统的水泥基砂浆而言，盾体注浆浆液的保水性、抗稀释性能强，收缩率小且固结率高；同时，制得的盾体注浆浆液的稠度大，通过盾构机本体的径向孔即可注入盾构机本体与土体之间的间隙内，能够快速、有效的对土体进行支撑，从而消除地面沉降等安全事故。
Shield grouting slurry, preparation method and construction device thereof
The invention relates to shield grouting slurry, a preparation method and a construction device thereof. The preparation method of the shield grouting slurry comprises the following steps that 30-70 parts of lime, 250-350 parts of fly ash, 80-120 parts of bentonite, 350-550 parts of fine sand and 350-450 parts of water are selected to be mixed and stirred by mass to obtain first mixed slurry; and30-70 parts of lime is selected to be mixed and stirred with the first mixed slurry, and the shield grouting slurry is obtained. Compared with traditional cement-based grout, the shield grouting slurry is high in water-retaining property and dilution resistance, small in percentage of contraction and high in percentage of consolidation; meanwhile, the obtained shield grouting slurry is high in consistency; and the shield grouting slurry can be poured into the gap between a shield tunneling machine body and a soil body through a radial hole of the shield tunneling machine body and can support the soil body quickly and effectively, and accordingly, safety accidents such as land subsidence are eliminated.
本发明涉及一种盾体注浆浆液、制备方法及其施工装置，盾体注浆浆液的制备方法包括以下步骤：以质量份计，选取30份～70份石灰、250份～350份粉煤灰、80份～120份膨润土、350份～550份细砂及350份～450份水进行混合并搅拌，得到第一混合浆液；选取30份～70份石灰与第一混合浆液混合并搅拌，得到盾体注浆浆液。相比传统的水泥基砂浆而言，盾体注浆浆液的保水性、抗稀释性能强，收缩率小且固结率高；同时，制得的盾体注浆浆液的稠度大，通过盾构机本体的径向孔即可注入盾构机本体与土体之间的间隙内，能够快速、有效的对土体进行支撑，从而消除地面沉降等安全事故。
Shield grouting slurry, preparation method and construction device thereof
盾体注浆浆液、制备方法及其施工装置
LIAO JIANPING (Autor:in) / LIU MING (Autor:in) / BAI WEI (Autor:in) / GUO XIANHUA (Autor:in) / CHEN LIGANG (Autor:in) / ZHENG YONG (Autor:in) / LIU JIUCHUAN (Autor:in) / WANG DEJUN (Autor:in)
14.08.2020
Patent
Elektronische Ressource
Chinesisch
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