Study on the Influence of Water Immersion in Loess Stratum on the Bearing Capacity of Foundation Bearing Layer of Pipe Gallery

Table 6

Backcalculation of shear strength index bearing capacity of soil before and after immersion.

Drilling number	Soil state	Cohesion C/MPa	Internal friction angle /°	Foundation capacity/kPa	Loss of bearing capacity
JS1	18 h immersion	34	14.0	179.4	2.5%
JL1	No water immersion	34.2	14.3	184
JS2	18 h immersion	34.5	14.2	185.2	2.4%
JL2	No water immersion	34.7	14.5	189.8
JS3	18 h immersion	34.5	14.2	180.2	2.5%
JL3	No water immersion	34.7	14.5	184.8