以西安地铁某区间隧道工程为依托,对二重管无收缩双液注浆WSS工法进行了研究,并制定了施工方案。现场监测结果表明,WSS注浆可以改良土层性状,提高土体强度,形成隔水层。WSS注浆保证了隧道的干作业及施工安全,减小了地表沉降。%Based on the sectional tunnel engineering of Xi＇ an subway, the paper studies the double-tube non-shrinkage double-liquid WSS grou- ting method, and formulates the construction scheme. Field detection results show that WSS grouting can improve soil layer quality, improve soil strength and form water-proofing layer. As a result, WSS grouting ensures the dry tunnel construction and construction security, and reduces surface subsidence as well.
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