<<
[an error occurred while processing this directive] | [an error occurred while processing this directive] >>
富水软弱地层盾尾单双液多序注浆及效果研究
(1 Guangdong No.2 Hydropower Engineering Co., Ltd., Guangzhou 510663;
2 Guangdong Provincial Academy of Building Research, Guangzhou 510500; 3 Sun Yat-Sen University, Guangzhou 510275)
There are some technical difficulties involved with grouting at a shield tail in water-rich soft ground liable to collapse, so an in-depth study was performed regarding grout proportion and technology and its applicability. Included is an analysis of the properties of seven grout proportions for the four popular grout materials of cement, bentonite, coal ash and water glass. The construction technology of back filling injection with one component and two components for the water-rich soft stratum is proposed, which controls the rapid setting of two-component grout and ensures effective grout filling.
Abstract：
There are some technical difficulties involved with grouting at a shield tail in water-rich soft ground liable to collapse, so an in-depth study was performed regarding grout proportion and technology and its applicability. Included is an analysis of the properties of seven grout proportions for the four popular grout materials of cement, bentonite, coal ash and water glass. The construction technology of back filling injection with one component and two components for the water-rich soft stratum is proposed, which controls the rapid setting of two-component grout and ensures effective grout filling.
.There are some technical difficulties involved with grouting at a shield tail in water-rich soft ground liable to collapse, so an in-depth study was performed regarding grout proportion and technology and its applicability. Included is an analysis of the properties of seven grout proportions for the four popular grout materials of cement, bentonite, coal ash and water glass. The construction technology of back filling injection with one component and two components for the water-rich soft stratum is proposed, which controls the rapid setting of two-component grout and ensures effective grout filling.[J] MODERN TUNNELLING TECHNOLOGY, 2012,V49(1): 156-159
2012, Vol. 49 