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发明公开
CN101269938A 一种可防止管片上浮的隧道背衬注浆材料及其制备方法 无效 - 驳回

一种可防止管片上浮的隧道背衬注浆材料及其制备方法
摘要：
本发明涉及隧道壁后注浆材料及其制备方法。一种可防止管片上浮的隧道背衬注浆材料，其特征在于它由基体组分A与外掺组分B制备而成，基体组分A为：水泥、粉煤灰、砂和水；外掺组分B为：硅灰、膨润土、羟乙基纤维素、聚丙烯酰胺、氨基磺酸盐、萘系减水剂和葡萄糖酸钠；各组分的配比(kg/m3)为：水泥：100～200，粉煤灰：300～600，砂：800～1600，水：280～560，硅灰：10～40，膨润土：12～30，羟乙基纤维素：0.4～0.8，聚丙烯酰胺：0.2～0.4，氨基磺酸盐：0.2～0.4，萘系减水剂：1.6～2.9，葡萄糖酸钠：0.2～0.4。本发明可以实现注浆材料在高水压饱水条件下的高稳定性、高抗水分散性、高效减水保塑性和凝结时间可调的性能，大大提高注浆材料的工作性能和耐久性。
摘要（英）：

The present invention relates to tunnel-wall post-injection pulp material and a preparation method of the tunnel-wall post-injection pulp material. Tunnel back-lining pulp-injection material that can prevent the upward-floating of the duct piece is characterized in consisting of a substrate compound A and an additive compound B, wherein, the substrate compound A includes cement, fly ash, sand and water; the additive compound B includes silicone ash, swell soil, droxyethylcellulose, polyacrylamide, sulfamate, naphthaline water-reducing agent and gluconic acid sodium salt; the ratio of the ingredients (kg/m<3>): 100 to 200 portions of cement, 300 to 600 portions of fly ash, 800 to 1600 portions of sand, 280 to 560 portions of water, 10 to 40 portions of silicone ash, 12 to 30 portions of swell soil, 0.4 to 0.8 portions of droxyethylcellulose, 0.2 to 0.4 portions of polyacrylamide, 0.2 to 0.4 portions of sulfamate, 1.6 to 2.9 portions of naphthaline water-reducing agent and 0.2 to 0.4 portions of gluconic acid sodium salt. The present invention can realize the high stability, high water dispersion prevention, high-efficient water-reducing plasticity preservation and adjustable performance of the pulp-injection material the condensation under the conditions of high water pressure and water satuation, thereby greatly improving the working performance and the durance of the pulp-injection material.

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