Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Soil pressure acquisition method for asynchronous construction of adjacent underground project
The invention discloses a soil pressure acquisition method for asynchronous construction of an adjacent underground project. The method comprises the following steps: determining design parameters of an adjacent foundation pit, a ground surface standard load and physical and mechanical parameters of a soil body; determining initial values of a construction stage and a slip crack surface inclination angle; obtaining the gravity acting power of the soil body, the acting power of the ground standard load, the acting power of the soil side pressure resultant force and the acting power of the cohesive resistance on the failure surface in the failure range at different stages; establishing a solution equation of limit analysis, and solving the numerical value of the soil pressure resultant force and the maximum value of the soil pressure resultant force at different stages; determining a critical depth between the two stages; according to the critical depth range, determining soil pressure distribution conditions at different depths, and giving corresponding soil pressure distribution values in a segmented mode. The soil pressure of close-connection asynchronous construction of the open-cut tunnel and the subway station is obtained, the reliability is high, a calculation method is simple, the theory is reliable, and construction design of adjacent foundation pits and underground building structure design in engineering can be guided easily.
一种邻接地下工程非同步施工的土压力获取方法，包括以下步骤：确定邻接基坑的设计参数、地表标准荷载和土体的物理力学参数；确定施工阶段和滑裂面倾角的初始值；获取不同阶段失效范围内土体的重力做功功率、地面标准荷载的做功功率、土侧压力合力的做功功率、失效面上粘聚阻力的做功功率；建立极限分析的求解方程，求解土压力合力的数值以及不同阶段的土压力合力的最大值；确定两个阶段之间的临界深度；根据临界深度范围，确定不同深度处的土压力分布情况，并分段给出相应的土压力分布值。本发明的方法，获取明挖隧道与地铁车站近接非同步施工的土压力，可靠性高，计算方法简单，理论可靠，有利于指导工程中邻接基坑的施工设计和地下建筑结构设计。
Soil pressure acquisition method for asynchronous construction of adjacent underground project
The invention discloses a soil pressure acquisition method for asynchronous construction of an adjacent underground project. The method comprises the following steps: determining design parameters of an adjacent foundation pit, a ground surface standard load and physical and mechanical parameters of a soil body; determining initial values of a construction stage and a slip crack surface inclination angle; obtaining the gravity acting power of the soil body, the acting power of the ground standard load, the acting power of the soil side pressure resultant force and the acting power of the cohesive resistance on the failure surface in the failure range at different stages; establishing a solution equation of limit analysis, and solving the numerical value of the soil pressure resultant force and the maximum value of the soil pressure resultant force at different stages; determining a critical depth between the two stages; according to the critical depth range, determining soil pressure distribution conditions at different depths, and giving corresponding soil pressure distribution values in a segmented mode. The soil pressure of close-connection asynchronous construction of the open-cut tunnel and the subway station is obtained, the reliability is high, a calculation method is simple, the theory is reliable, and construction design of adjacent foundation pits and underground building structure design in engineering can be guided easily.
一种邻接地下工程非同步施工的土压力获取方法，包括以下步骤：确定邻接基坑的设计参数、地表标准荷载和土体的物理力学参数；确定施工阶段和滑裂面倾角的初始值；获取不同阶段失效范围内土体的重力做功功率、地面标准荷载的做功功率、土侧压力合力的做功功率、失效面上粘聚阻力的做功功率；建立极限分析的求解方程，求解土压力合力的数值以及不同阶段的土压力合力的最大值；确定两个阶段之间的临界深度；根据临界深度范围，确定不同深度处的土压力分布情况，并分段给出相应的土压力分布值。本发明的方法，获取明挖隧道与地铁车站近接非同步施工的土压力，可靠性高，计算方法简单，理论可靠，有利于指导工程中邻接基坑的施工设计和地下建筑结构设计。
Soil pressure acquisition method for asynchronous construction of adjacent underground project
一种邻接地下工程非同步施工的土压力获取方法
ZHANG XUAN (Autor:in) / LAI QINGZHAO (Autor:in) / TIAN SHIKUAN (Autor:in) / WANG LIHUA (Autor:in) / FENG CHUNLEI (Autor:in) / XU XIAO (Autor:in) / WU SHENGZHI (Autor:in)
16.07.2021
Patent
Elektronische Ressource
Chinesisch
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