CAJ | 학술논문

土钉墙支护软弱地基基坑,只能适用于一定的开挖深度,即土钉基坑支护结构具有极限开挖深度.为此,提出了土钉支护结构极限开挖深度的确定方法,以淤泥类地层基坑作为研究对象,研究了土钉支护结构的极限开挖深度问题,以及研究了土钉墙墙面坡度、地面超载、土层物理力学性指标以及土钉直径等变化时对极限开挖深度的影响.对于位于淤泥类、淤泥质类土层中的基坑,其极限开挖深度可分别取为5.0 m和6.0 m.
토정장지호연약지기기갱,지능괄용우일정적개알심도,즉토정기갱지호결구구유겁한개알심도.위차,제출료토정지호결구겁한개알심도적학정방법,이어니류지층기갱작위연구대상,연구료토정지호결구적겁한개알심도문제,이급연구료토정장장면파도、지면초재、토층물리역학성지표이급토정직경등변화시대겁한개알심도적영향.대우위우어니류、어니질류토층중적기갱,기겁한개알심도가분별취위5.0 m화6.0 m.
Soil nailing wall which is developed to protect excavation in soft ground is applied to definite excavation depth. Soil nailing protection structure has the limit excavation depth, namely. The method of confirming the limit excavation depth of soil nailing protection structure is put forward; the limit excavation depth of soil nailing protection structure is studied based on the silt foundation. The influences of soil nailing wall slope, surcharge, physico-mechanical properties, and soil nailing diameter on limit excavation depth are studied. For the excavations in the silt and mucky soil grounds, the limit excavation depths are 5.0 m and 6.0 m respectively.