Research Article
Deformation Monitoring and Stability Analysis of Shaft Lining in Weakly Cemented Stratum
Table 1
Structural composition of the weakly cemented stratum in Xieqiao mining area.
| Stratum | Depth (m) | Stratigraphic distribution | Parameters | Lithology |
| 1st aquifer | 26 | | q = 0.021∼0.603 L/s·m | Medium fine powder | 1st aquiclude | 25 | | IP = 17∼22 | Sandy clay | 2nd aquifer | 65 | | q = 0.199∼2.73 L/s·m | Medium fine sand | 3rd aquifer | 175 | | k = 3.22∼12.14 m/d | Medium coarse sand | 2nd aquiclude | 70 | | IP = 18∼29 | Clay | 3rd aquiclude | 40 | | IP = 20∼30 | Clay | 4th aquifer | 50 | | q = 0.524∼1.935 L/s·m | Medium coarse sand | 4th aquiclude | 20 | | — | Cemented clay |
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q is the unit water inflow, K is the permeability coefficient, and IP is the plasticity index.
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