摘要
沿海地区吹填场地经过预处理后进行桩基施工,施工前需进行试验以确定工程桩桩型及设计参数。通过竖向抗压静载试验、水平承载力静载试验并结合桩身应力监测数据,分析可得达到相同竖向承载力时,后注浆灌注桩桩长较普通钻孔灌注桩短,而水平受力状态并没有显著差异,这不仅可缩短工期,并可节约成本,验证了后注浆灌注桩在本吹填场地的适用性。
After pre-treatment, pile foundation construction is carried out on the blow-filled sites in coastal areas. Before the construction, tests should be carried out to determine the pile type and design parameters of the project. Static loading test of vertical compression resistance and horizontal bearing capacity should be carried out. Meanwhile, stress monitoring data of pile should be obtained. It can be concluded from the analysis that when the same vertical bearing capacity is achieved, the length of the post-grouting pile is shorter than that of the ordinary bored pile, while the horizontal stress state is not significantly different. The post-grouting bored pile can not only shorten the construction period, but also save the cost. This paper has verified the applicability of post-grouting grouting pile in this blow-in site.
关键词
吹填场地
后注浆灌注桩
静载试验
blow-filled sites
post-grouting bored pile
static loading test
