Research Article

Phenomenon and Critical Conditions of Chamber Soil Sliming during EPB Shield Tunneling in Water-Rich Weathered Diorite: Case Study of Jinan Metro, China

Figure 3

Geological section of a section of Jinan Metro line R2. A, backfill soil; B, silty clay; C, completely weathered diorite; D, sandy strongly weathered diorite; E, moderately weathered diorite.