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A platform for research: civil engineering, architecture and urbanism
Synchronous grouting slurry for shield construction of water-rich stratum and preparation method thereof
The invention relates to synchronous grouting slurry for shield construction of a water-rich stratum and a preparation method thereof. The synchronous grouting slurry comprises a component A, a component B and a component C, wherein the raw materials of the component A comprise silicate 42.5-grade cement, II-grade fly ash, river sand and sodium bentonite, the raw materials of the component B comprise hydroxyethyl methyl cellulose and tap water, the raw material of the component C comprises nano silicon dioxide, the tap water, the ratio of the blending amount of the component B to the blending amount of the component A is 3: 5, and the ratio of the blending amount of the component C to the blending amount of the component A is 1: 2; the synchronous grouting slurry is high in early-stage shear strength, good in groutability, stable, high in stone rate, low in bleeding rate and good in dilution resistance, certain shear resistance is provided after the synchronous grouting slurry is injected, then duct pieces are inhibited from floating upwards, the effect of stabilizing the duct pieces can be achieved, and the problems of cracking and water seepage of the duct pieces are solved.
本发明涉及一种用于富水地层盾构施工的同步注浆浆液及其制备方法，包括A组分、B组分、C组分；其中，A组分的原料包括硅酸盐42.5级水泥、II级粉煤灰、河砂、纳基膨润土，B组分的原料包括羟乙基甲基纤维素、自来水，C组分的原料包括纳米二氧化硅、自来水，B组分的掺和量与A组分的掺和量的比值为3:5，C组分的掺和量与A组分的掺和量的比值为1:2；本发明所述同步注浆浆液的早期抗剪切强度高、可注性好、浆液稳定、结石率高、析水率低、具有较好的抗稀释性，在同步注浆浆液注入后提供一定的抗剪切力，进而抑制管片上浮，能够起到稳定管片的作用，解决管片开裂、渗水的问题。
Synchronous grouting slurry for shield construction of water-rich stratum and preparation method thereof
The invention relates to synchronous grouting slurry for shield construction of a water-rich stratum and a preparation method thereof. The synchronous grouting slurry comprises a component A, a component B and a component C, wherein the raw materials of the component A comprise silicate 42.5-grade cement, II-grade fly ash, river sand and sodium bentonite, the raw materials of the component B comprise hydroxyethyl methyl cellulose and tap water, the raw material of the component C comprises nano silicon dioxide, the tap water, the ratio of the blending amount of the component B to the blending amount of the component A is 3: 5, and the ratio of the blending amount of the component C to the blending amount of the component A is 1: 2; the synchronous grouting slurry is high in early-stage shear strength, good in groutability, stable, high in stone rate, low in bleeding rate and good in dilution resistance, certain shear resistance is provided after the synchronous grouting slurry is injected, then duct pieces are inhibited from floating upwards, the effect of stabilizing the duct pieces can be achieved, and the problems of cracking and water seepage of the duct pieces are solved.
本发明涉及一种用于富水地层盾构施工的同步注浆浆液及其制备方法，包括A组分、B组分、C组分；其中，A组分的原料包括硅酸盐42.5级水泥、II级粉煤灰、河砂、纳基膨润土，B组分的原料包括羟乙基甲基纤维素、自来水，C组分的原料包括纳米二氧化硅、自来水，B组分的掺和量与A组分的掺和量的比值为3:5，C组分的掺和量与A组分的掺和量的比值为1:2；本发明所述同步注浆浆液的早期抗剪切强度高、可注性好、浆液稳定、结石率高、析水率低、具有较好的抗稀释性，在同步注浆浆液注入后提供一定的抗剪切力，进而抑制管片上浮，能够起到稳定管片的作用，解决管片开裂、渗水的问题。
Synchronous grouting slurry for shield construction of water-rich stratum and preparation method thereof
一种用于富水地层盾构施工的同步注浆浆液及其制备方法
YU YUEXIN (author) / HU ZHONGBAO (author) / GUO XIAOLONG (author) / GENG DAXIN (author) / JIANG YALONG (author) / CHEN QIANG (author) / XIAO JUN (author) / LIAO YUQI (author) / HU YUCHEN (author) / PENG YANFENG (author)
2021-06-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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