Seismic investigation revealed that a fault fracture zone is one of the most vulnerable areas mountain tunnels in earthquakes. For tunnel crossing secondary fault, may be permanently dislocated by causative faults during earthquakes, making subject to combined action seismic motion and dislocation, which makes response more complicated. In order investigate fault-crossing this case explore suit...

At present, there are many damages to concrete structures in buildings that have build. One such damage is the appearance of cracks. Cracks caused by factors, including loads exceed limits, temperature, components constituent material, process making and time. This research was conducted with aim studying effect use admixture "x", fiber cement grouting on compressive strength cracking untreated...

To prevent the occurrence of water inrush from working face floor, explorations water-rich floors are necessary. For a with regular shape, floor can be detected by laying electrodes and cables around face. However, rectangular develops an irregular exploration in faces is difficulty study 3D electric resistivity tomography (ERT). In this paper, unconventional dipole–dipole array used for data a...

The shield tunnel of the Kunming subway crosses beneath the Kun-Shi Railway. Due to the high requirements of railway track for settlement control, this article proposes the following technical measures for controlling the settlement based on the analysis of risks arising from the shield crossing railway: (1) Reinforcing the stratum of the region crossed by the shield in advance to achieve high ...