CAJ | 학술논문

以廊坊市某桩锚支护基坑工程为背景，采用FLAC-3D计算软件进行三维模型计算，分析了基坑开挖对周围环境的影响范围，得到了桩锚支护基坑的围护桩水平位移在不同开挖阶段随深度的变化规律。结果表明：土方开挖对基坑周围土体的影响范围约为3倍的开挖深度；开挖过程中，桩体水平位移在锚索作用位置明显收敛，最大位移位置基本处于桩体中部；围护桩水平位移在各开挖阶段与深度变化规律相似。桩体水平位移的数值计算结果和实测结果相吻合。
이랑방시모장묘지호기갱공정위배경，채용FLAC-3D계산연건진행삼유모형계산，분석료기갱개알대주위배경적영향범위，득도료장묘지호기갱적위호장수평위이재불동개알계단수심도적변화규률。결과표명：토방개알대기갱주위토체적영향범위약위3배적개알심도；개알과정중，장체수평위이재묘색작용위치명현수렴，최대위이위치기본처우장체중부；위호장수평위이재각개알계단여심도변화규률상사。장체수평위이적수치계산결과화실측결과상문합。
Based on an anchored pile support foundation excavation in Langfang City, a FLAC-3D model is established for numerical analysis. The influence scope of excavation on the surrounding circumstance is predicted,the change law of lateral displacement of retaining piles in different excavation stages with depth is obtained. The results show that the influence scope of excavation on the surrounding soil is approximately triple of the depth of the foundation excavation. During excavation, the lateral displacement is constrained obviously in the position of anchor, the maximum displacement is found near mid-height of the pile. The lateral displacements of retaining piles during different excavation stages show the similar rules. The simulated values of horizontal displacement of the pile agree well with those obtained from field measured results.