无覆盖层 meaning in Chinese

intectate-reticulate

Based on the construction of large diameter pile foundations at deep water riverbed without overburden for the shengmi bridge in nanchang , the construction difficulties and construction control key points involved in the method for bored pile construction with floating gantry are described
摘要通过对南昌生米大桥深水无覆盖层大孔径桩基施工实践，介绍浮式龙门钻孔桩施工方法中的施工难点和控制重点。
In the light of the low - lying pile cap foundations designed for main piers no . 2 and no . 3 of tianluo bridge on wenzhou - fuzhou railway . this paper describes the ways to resolve the construction problems of the foundations in deep water in sea and at seabed that is steep and without overburden , using the construction techniques of underwater rock blasting , steel cofferdam floating , positioning , bottom sealing and manual pile digging
摘要针对温福铁路田螺大桥2号、 3号主墩设计上采用低桩承台基础情况，介绍运用水下岩石爆破，浮运钢围堰就位、封底、人工挖孔桩等施工技术解决海上深水、河床陡峭且无覆盖层的基础施工难题。