摘要
针对在地下水丰富的粉细砂层中进行人工挖孔桩施工易形成流砂的问题,结合工程实例,论证了利用水泥—水玻璃压力注浆固结砂层,能有效增强桩基底部粉细砂层的强度,提高桩的承载力的有效性,并介绍了注浆孔布置、注浆压力、注浆施工过程等方面应注意的事项。
Groundwater is often rich in fine sand layer in hand-dug pile construction,easy to form a stream of sand.Papers with engineering examples,demonstrates the use of cement-sodium silicate sand consolidation pressure grouting,can effectively strengthen the foundation layer of fine sand at the bottom of strength,to improve the effectiveness of the bearing capacity of piles.And introduced the layout of the grouting holes,grouting pressure,grouting and other aspects of the construction process should pay attention to.
出处
《山西建筑》
2010年第4期96-98,共3页
Shanxi Architecture
关键词
水泥—水玻璃
压力注浆
地基加固
cement-sodium silicate
pressure grouting
foundation strengthening
