(西南交通大學(xué)巖土所， 成都 610031)
摘 要: 結(jié)構(gòu)劑加量、水泥加量與粘土原漿粘度對粘土固化漿液的初凝時間都有影響, 它們的影響程度各不相同, 其中結(jié)構(gòu)劑加量為2%時, 初凝時間最 短, 僅幾秒鐘。粘土固化漿液塑性強(qiáng)度增長緩慢, 早期強(qiáng)度低, 后期強(qiáng)度(第18天的塑性強(qiáng)度) 可達(dá)數(shù)兆帕,調(diào)整水泥加量、結(jié)構(gòu)劑加量與原漿粘度可調(diào)節(jié)漿液塑性強(qiáng)度值。
關(guān)鍵字: 粘土固化漿液 初凝時間 塑性強(qiáng)度
（Geotechnical Engineering Institute, Southwest Jiaotong Univers ity, Chengdu 610031）
Abstract:Gelling time of the Clay Hardening Grouts (CHG ) can be adjusted from some dozens minutes to seconds by adding cement and constructure agent and adjusting the viscosity of the mud. Constructional agent being 2%, gel time is the shortest, about seconds. Content of cement and viscosity of clay mud will, also, affect the gelling time, but their effects are not the same . The increasing rate of plastic strength (Ps) of the grouts is slow, the early Ps is lower, the later Ps may be 1～2MPa. After 18th day, Ps of the grouts may be some MPa by adjusting the content of cement, structural agent and viscosity of clay mud.
Key words: clay hardening grouts gelling time plastic strength
