期刊论文

Linyi Li

英文

Tunnelling and Underground Space Technology

0886-7798

2021

118

104188

10.1016/j.tust.2021.104188

science and technology innovation Program of Hunan Province [2020RC4049]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51878669, 52078496, 5210081063, 52178262]; Changsha Municipal Natural Science Foundation [kq2014159]; Scientific Research Project of Hunan Education Department [20B596]

本校为第一机构

The search for eco-friendly grouting materials with excellent workability performance to strike a balance between environmental protection and manipulability is a popular topic in underground engineering. This paper presented a practical and efficient strategy for producing a composite grouting material with microbial polysaccharide gum (CGMG) for pre-reinforcement of shallow underground excavation in a vegetation protection area. The CGMG grout is formulated based on excellent synergistic interactions among cement, water, xanthan gum and sodium aluminate, and an optimal weight proportion of 1...