Drainage structure for improving stability of silt stratum roadbed

• Main Authors: CHEN SHENGTIAN, LU RUIQIANG, LI MENG, DING LEI, WANG YUSHAN, WANG ZIRONG, WU FENG, NIE YONGCHEN, LYU JIA, ZHANG CHUNSHENG
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR

According to the technical scheme, the drainage structure for improving the stability of the silt stratum roadbed is characterized in that the drainage structure for improving the stability of the silt stratum roadbed comprises a drainage sand cushion layer, double-layer longitudinal and transverse blind pipes are arranged in the drainage sand cushion layer, the blind pipes are reinforced soft permeable pipes, and supporting structures are arranged outside the blind pipes; a water-collecting well is arranged at the intersection of the longitudinal and transverse blind pipes, and a submersible pump is arranged in the water-collecting well. The problems that in the heaped loading pressurization process, the sand cushion layer can generate wave type uneven sedimentation, blind pipes are bent, broken and blocked, and water is prone to accumulating at the intersection of the longitudinal blind pipe and the transverse blind pipe, so that water in the sand cushion layer cannot be discharged in time, and the soft fou