CAJ | 학술논문

以福建省平潭市政道路项目为背景，通过岩土有限差分软件Flac3D建模，进行了综合管廊应力分布数值模拟。在所建模型中，包含4个关键位置。保持综合管廊上部荷载不变，改变综合管廊埋深，通过监测每个位置的竖向应力值，得出关键位置应力与埋深的估算关系式；保持综合管廊埋深不变，改变综合管廊上部荷载，通过监测每个位置的竖向应力值，得出关键位置应力与上部荷载的估算关系式。所得的两个估算式可供综合管廊设计及施工估算应力借鉴。
이복건성평담시정도로항목위배경，통과암토유한차분연건Flac3D건모，진행료종합관랑응력분포수치모의。재소건모형중，포함4개관건위치。보지종합관랑상부하재불변，개변종합관랑매심，통과감측매개위치적수향응력치，득출관건위치응력여매심적고산관계식；보지종합관랑매심불변，개변종합관랑상부하재，통과감측매개위치적수향응력치，득출관건위치응력여상부하재적고산관계식。소득적량개고산식가공종합관랑설계급시공고산응력차감。
Based on the municipal road projects in Pingtan, Fujian Province, a numerical simulation model for stress distribution of utility tunnel based on the fast Lagrangian analysis of continua in three dimensions (FLAC3D) is established. In this model, there are 4 key positions. By changing the buried depth of utility tunnel, the vertical stress of each position is monitored. Then, an estimated formula is obtained, which shows the relation between the stress of key positions and the buried depths; by changing the upper load of utility tunnel, the vertical stress of each position is monitored. Then, an estimated formula is obtained, which shows the relation between the stress of key positions and the upper loads. The two estimated formulas can provide a reference for the design of utility tunnel and estimating stress in construction.