The Role of Faults on Tehran Alluvial and Its Impact on Resistance of Alluvial

• 作者: Manouchehr Ghorashi Mohsen Pourkermani Omid Asadzadeh Saghavaz
• 来源期刊: 地质学期刊(英文)
• 学科: 医学
• 关键词: Mechanical RESISTANCE FAULTING Numerical Methods Limit EQUILIBRIUM Method
• 年，卷（期）: 2017,（8）
• 页码范围: 1128-1139
• 页数: 12页
• 分类号: R73

摘要

Tehran is located in the Alborz’s mountain range subsidence and alluvial deposits which are formed in the different faults. Though these faults caused changes in Northern Tehran’s alluvium. The geomechanics factors on these alluviums made northern area of Tehran a dangerous place to construct. In this article we have tried to determine the zone’s resistance [1], critical depth in excavation and in the end the role of faults in mechanical resistance of alluvium by comparing several pits in the zone of fault or the zone with no fault. For this purpose, the impact of the neighboring building on the pit stability has been investigated in several locations in some part of coarse alluvium of northern Tehran. So engineering methods such as numerical method and limit equilibrium with the help of software like FLAC and SLIDE were used to determine alluvium’s resistance and the critical depth of excavation. It was done in a way that several pits were analyzed and evaluated in the studied area to a depth of 20 meters in the unloaded state of the neighboring buildings, and once even the load of a neighboring 5-storey building placed at a distance of 3 meters from the edge of the considered pit was analyzed and the results were compared.