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A platform for research: civil engineering, architecture and urbanism
Early-strength steel-slag-based multi-solid-waste shield tunnel backfill grouting material and preparation method thereof
The invention belongs to the field of civil engineering materials, and particularly relates to an early-strength steel slag-based multi-solid-waste composite metro shield tunnel backfill grouting material and a preparation method thereof. The grouting material comprises 30-50 parts of steel slag, 3-5 parts of carbide slag, 1-3 parts of desulfurized gypsum, 5-15 parts of shield muck, 30-40 parts of slag powder, 10-20 parts of fly ash, 3-5 parts of sodium carbonate, 150-200 parts of high-silicon iron tailing machine-made sand, 0.2-0.5 part of sodium carboxymethyl cellulose, 0.5-1 part of a water reducing agent and 60-80 parts of water. The early strength of the backfill grouting material can be improved, ground surface settlement caused by the fact that a shield tunnel penetrates through a loose soil layer is reduced, the setting time is controllable, the use amount of Portland cement, bentonite and natural river sand can be reduced, preparation is simple, the flowing property is good, and durability is high.
本发明属于土木工程材料领域，具体为一种早强型钢渣基多固废复合地铁盾构隧道壁后注浆材料及其制备方法。注浆材料包含钢渣30～50份、电石渣3～5份、脱硫石膏1～3份、盾构渣土5～15份、矿渣粉30～40份、粉煤灰10～20份、碳酸钠3～5份、高硅型铁尾矿机制砂150～200份、羧甲基纤维素钠0.2～0.5份、减水剂0.5～1份及水60～80份。本发明可提高壁后注浆材料早期强度，减小盾构隧道穿越松散土层造成的地表沉降，凝结时间可控，可以减少硅酸盐水泥、膨润土以及天然河砂的用量，配置简单流动性能好，耐久性强。
Early-strength steel-slag-based multi-solid-waste shield tunnel backfill grouting material and preparation method thereof
The invention belongs to the field of civil engineering materials, and particularly relates to an early-strength steel slag-based multi-solid-waste composite metro shield tunnel backfill grouting material and a preparation method thereof. The grouting material comprises 30-50 parts of steel slag, 3-5 parts of carbide slag, 1-3 parts of desulfurized gypsum, 5-15 parts of shield muck, 30-40 parts of slag powder, 10-20 parts of fly ash, 3-5 parts of sodium carbonate, 150-200 parts of high-silicon iron tailing machine-made sand, 0.2-0.5 part of sodium carboxymethyl cellulose, 0.5-1 part of a water reducing agent and 60-80 parts of water. The early strength of the backfill grouting material can be improved, ground surface settlement caused by the fact that a shield tunnel penetrates through a loose soil layer is reduced, the setting time is controllable, the use amount of Portland cement, bentonite and natural river sand can be reduced, preparation is simple, the flowing property is good, and durability is high.
本发明属于土木工程材料领域，具体为一种早强型钢渣基多固废复合地铁盾构隧道壁后注浆材料及其制备方法。注浆材料包含钢渣30～50份、电石渣3～5份、脱硫石膏1～3份、盾构渣土5～15份、矿渣粉30～40份、粉煤灰10～20份、碳酸钠3～5份、高硅型铁尾矿机制砂150～200份、羧甲基纤维素钠0.2～0.5份、减水剂0.5～1份及水60～80份。本发明可提高壁后注浆材料早期强度，减小盾构隧道穿越松散土层造成的地表沉降，凝结时间可控，可以减少硅酸盐水泥、膨润土以及天然河砂的用量，配置简单流动性能好，耐久性强。
Early-strength steel-slag-based multi-solid-waste shield tunnel backfill grouting material and preparation method thereof
一种早强型钢渣基多固废盾构隧道壁后注浆材料及其制备方法
WANG YING (author) / GU XIAOWEI (author) / WANG QING (author) / XU XIAOCHUAN (author)
2024-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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