Shield tunnel structures are commonly found to be overdeformed in Eastern China soft ground due adjacent engineering activities. Grouting treatment could serve as a viable solution actively reduce the excessive diametrical expansion of linings. However, understanding grouting-induced effects on remains preliminary scarcity well-documented case histories. In this study, field experiment was cond...

Abstract Semi-flexible pavement has a more notable advantage over asphalt concrete in terms of rutting performance. Cement grouting and open-graded are components the semi-flexible pavement. In cement grouting, two commercial modifiers from Sika Vietnam were used, Latex TH Latex, with different contents 4.5% to 7.5% for 9.5% Latex. 72 samples mortar fabricated laboratory conditions PCB40. All g...

Cement bentonite grouting is used to seal and stabilize soil or rock formations. This involves mixing cement, bentonite, water create a slurry that pumped into the ground under pressure. The fills voids fractures in rock, creating solid mass can support structures prevent from seeping through. Bentonite type of clay swells when it meets water, making an effective sealing material. added mixture...

In order to solve the problem that hole-forming rate of boreholes is low and it difficult reach designed length when supporting a long pipe shed in loose stratum shallow buried section long-span tunnel, necessary pre-reinforce improve strength integrity surrounding rock. Relying on grouting project at exit Botanggou assumed material Newtonian fluid steel floral tube shows cylindrical infiltrati...

Post-grouting is a widely used technology for ground improvement and the strengthening of bored pile foundations. In situ experiments have shown that post-grouting effective in improving bearing capacity piles. However, due to cost complexity tests, total number test piles limited. Therefore, it not surprising uncertainty always associated with collected data. This may significantly affect conc...

The quality of grouted sleeve has a significant influence on the performance splice. Incompactness infilled grout is inevitable in grouting. To investigate tensile behavior splice sleeves due to different compactness, monotonic tests connectors were performed at compactness 100%, 90%, 70%, and 50%, respectively. bond-slip analytical model rebar-grout was deduced by fitting test data, formula fo...