岩土力学2011，Vol.32Issue(4)：1008-1012,5.
重锤夯实抛石基床的有效加固深度试验研究
Experimental research on effective reinforced depth of rubble bed with heavy tamping compaction
叶锋 1童新春 2张功新 1张宝洁 2刘元立2
作者信息
- 1. 中交四航工程研究院有限公司,广州,510230
- 2. 中交四航局福州分公司,福州,350003
- 折叠
摘要
Abstract
Heavy tamping compaction is a traditional method in tamping construction of rubble bed.Some constraints in this method,such as small tamping energy and small dividing thickness.result in the low efficiency.A couple of improvements in the process of heavy tamping compaction are put forward.The proposed improvements are the increase in the tamping energy and the dividing thickness of rubble bed.Heavy hammer is first designed; then field contrast test of tamping stress and laboratory model test are camed out.The test results show that the new process is feasible.On this basis the dividing thickness of rubble bed is increased to 4 m from 2 m.The construction resuks of the Songyu Harbour in Xiamen show that the improved process of heavy tamping compaction gets a good result; as the average compaaing rate reaches as high as 14.85％ and the etffciency increases significantly.so as to provide reference for similar engineering practice.关键词
重锤夯实/抛石基床/有效加固深度/现场试验/模型试验Key words
heavy tamping compaction/ rubble bed/ effeaive reinforced depth/ field test/ model test分类
交通工程引用本文复制引用
叶锋,童新春,张功新,张宝洁,刘元立..重锤夯实抛石基床的有效加固深度试验研究[J].岩土力学,2011,32(4):1008-1012,5.
