摘要
桩锚支护是目前广泛应用的深基坑支护形式之一,但在部分复杂地质条件下,常规锚索施工存在塌孔、缩颈、锚杆长度不足、注浆效果差等问题。结合深厚填土地层中的基坑工程,采用自钻式锚杆,杆体同时作为钻杆、注浆管与锚杆杆体,能够有效克服以上问题,保证基坑安全。
The pile-anchor supporting is one of the support form widely used in foundation excavation,but there are some problems in complicated geological conditions,such as hole collapse,necking,insufficient anchor length and poor grouting effect,etc.Self-drilling anchor was used in a foundation excavation with deep filling soil in Ji’nan,the anchor rod was also used as drilling pipe and grouting pipe.Through this method the above problems can be solved efficiently and the safety of foundation excavation can be ensured.
作者
马玉飞
熊辉
王超
付垚
孔刚
MA Yufei;XIONG Hui;WANG Chao;FU Yao;KONG Gang(Ji'nan Geotechnical Investigation and Surveying Institute,Ji’nan,Shandong 250101,China;Shandong Construction Engineering Group,Ji’nan,Shandong 250101,China)
出处
《施工技术》
CAS
2020年第S01期171-173,共3页
Construction Technology
关键词
深基坑
桩锚支护
深厚填土
自钻式锚杆
deep foundation excavation
pile-anchor supporting
deep filling soil
self-drilling anchor
作者简介
马玉飞,工程师,E-mail:mayufei1206@163.com
