长江口深水航道治理工程中地基加固施工工艺及专用船机设备的研究

针对长江口深水航道治理二期工程施工过程中遇到的堤身在波浪重复荷载作用下地基土出现软化、承载力降低的技术难题,第一航务工程局成功开发了适合长江口工况的安全、优质、高效的深水砂被铺设和海上塑料排水板打设施工工艺及专用船机设备,探索了一整套带橡胶阻滑板的沉箱预制施工工艺,确保了抗软化工程措施的有效实施。

Research on Soil Improvement Technology and Special-Purpose Marine Craft and Machinery during Implementation of Deepwater Waterway Regulation Project in Changjiang Estuary

In view of the technical problems of softening of foundation soil and reduction of bearing capacity of the breakwater under the action of repeated wave loads during the execution of the second phase of the deepwater waterway regulation project in the Changjiang Estuary,Tianjin Port Construction Corporation has successfully developed safer,higher quality and highly efficient technology and special-purpose marine craft and machinery for laying deepwater sand blankets and offshore installation of prefabricated drains,which were more suitable for the working conditions in the Changjiang Estuary,and has also explored the construction technology for prefabrication of caissons with rubber anti-sliding plates,to ensure the efficient implementation of the engineering measures against softening of foundation soils.