| 经过反复研究和在海上多次试验的基础上对塑料排水板打设设备和工艺进行了改进,研制成功了一种特殊的塑料排水板打设头,较好地解决了打设过程中穿透砂被、软体排以及塑料排水板在软土中的"回带"问题。 |
| Equipment and technology for installation of prefabricated drains were modified after repeated research and many offshore tests and a special type of mandrel for installation of prefabricated drains was successfully developed to have better solved the problem of"back-drawing of drains"when prefabricated drains were being driven through sand cushions and geo-fabric matting and into the soft soils. |
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