A Comprehensive Review of the Mechanical Behavior of Suspension Bridge Tunnel-Type Anchorage

Table 2

Field model test of the TTA built in soft rock strata.

Geological conditions	Geometric similarity ratio	Test content
The plug body is located in soft rock strata dominated by mudstone. Part of the plug body is below the average water level of the Yangtze river. Besides, the plug body is buried shallow	30	Field model test (Figure 12(a), no. M1) was performed to study the mechanical behavior of TTAs in soft rock strata with natural water content (the natural water content of rock mass is 5.36%)
	30	Field model test (Figures 12(a) and 12(b), no. M2) on soaked TTA in soft rock strata was performed (the final water content of surrounding rock is 7.39%), and the difference in mechanical behavior between M1 and M2 was compared
	10	Field model test was performed to study the mechanical behavior of TTAs at shallow depth (the maximum depth of the plug body is 6.8 m). The test diagram is shown in Figure 12(c)
The plug body is located in soft rock strata dominated by mudstone. There is a weak interlayer beneath the plug body	10	Field model test was performed to study the mechanical behavior of TTAs with underlying weak interlayers. The test diagram is shown in Figure 12(d)