大型疏浚土充填袋筑堤技术研究

何宁; 沈雪松; 周彦章; 杨守华; 朱群峰; 黄康理; 高长胜

doi:10.11779/CJGE201503007

大型疏浚土充填袋筑堤技术研究 English Version

1. 南京水利科学研究院岩土工程研究所,江苏南京 210024; 2. 连云港港30万吨航道建设指挥部,江苏连云港 222046

基金项目: 国家高技术研究发展计划（863计划）（2012AA112509）; 江苏省科技支撑计划项目（BE2011718）

详细信息

作者简介:
何宁(1969- ),男,江西高安人,教授级高级工程师,主要从事软土地基处理技术和岩土工程安全监测检测的理论研究与实践。E-mail: nhe@nhri.cn。

中图分类号: TU44
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出版历程
- 收稿日期: 2014-07-17
- 发布日期: 2015-03-23

Embankment construction technology using large geotextile bags filled with dredged soil

1. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, China; 2. Construction Headquarters of Lianyungang 300,000-Ton Waterway, Lianyungang 222046, China

摘要

摘要: 为缓解砂石资源紧缺、保护生态环境、降低工程造价和高效利用航道疏浚土,以大型疏浚土充填袋筑堤技术应用于连云港港徐圩港区围堤建设为工程实例,通过稳定性分析计算、离心模型试验开展了大型疏浚土充填袋筑堤技术的理论可行性研究,并结合原型试验提出了新型配套施工工艺,形成了相关成套技术。研究表明：袋体土工织物加筋作用良好,堤体及地基稳定性能够满足安全设计;控制疏浚土充填料初始含水率、采用泥浆泵与浓浆泵串联接力的施工工艺,能够提升大型疏浚土充填袋筑堤施工效率,满足正常围堤建设强度需要;低含水率疏浚土充填料排水较快、袋体实际有效厚度较为理想、堤体地基较为稳定,大型疏浚土充填袋筑堤具有其技术可行性。
- 疏浚土 /
- 充填袋 /
- 筑堤技术 /
- 稳定性分析 /
- 原型试验
Abstract: The application of embankment construction technology using large geotextile bags filled with dredged soil in Xuwei port area of Lianyungang is discussed in order to solve the lack of rock and sand resources, to protect the eco-environment, to reduce the project cost and to utilize the dredged soil from channel efficiently. The theoretical feasibility of this technology has been proved by numerical modeling of stability and centrifugal model tests. The complete new construction technology is proposed based on the prototype tests. During the construction and operation periods, the embankment construction using large geotextile bags filled with dredged soil and the embankment foundation stability satisfy the safety requirements. The water pressure in the geotextile bags dissipates quickly in the whole construction process. The compression and ratio of filling bags can satisfy the requirement of embankment construction. The stress of geotextile bags is less than the strength of its allowable range. The geotextile bags can be maintained completely.
- dredged soil /
- filling bag /
- embankment construction technolgy /
- stability analysis /
- prototype test

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参考文献(12)

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