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1. They riprapped the dykes of the reservoir with stone.

2. A formula reflecting the stabilization of riprap in a closure work and of groyne head apron is thus deduced.

3. Formulas of the displacement of riprap are derived from the elliptic velocity formula.

4. Water picked up riprap off the bottom in front, and rammed it through to the tail bed.

5. The area of riprap protection, protective revetments and silt arrester projects shall be defined in accordance with the approved design documents.

6. Anti-seepage treatment in riprap layer has always been a hard problem to engineers and technicians.

7. Construction measures and quality control methods of underwater riprap protection of bank are provided, and a practical example is given.

8. Riprap protection of bank was applied in the middle and lower Yangtze River and many other rivers at home and abroad.

9. The riprap included derrick stones, and each stone weighed seven tons.

10. There exists difficulties for drilling and grouting during anti-seepage treatment in ultra-thick riprap layer.

11. The calculation results of scour depth and stabilization of riprap are consistent with the actual situation.

12. In this paper, based on the fixed bed experiment, the flow regime near the riprap is described qualitatively, and the mechanism that the bank base of dumped riprap is brushed is discussed.

13. The back mountain is only a barren one, whose pathway is full of stone riprap and overgrown with weeds, rugged and rough, difficult to walk by foot.

14. Technical thorny problems met during construction of cast-in-situ piles at riprap backfilling area and corresponding countermeasures are expounded to serve as a reference for similar engineering.

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15. In this article, the construction technique of bored piles on the riprap layer geology in the breakwater is introduced and it also discusses how to solve the difficulties in the construction.

16. The system is mainly used in underwater topographical surveying and dynamic positioning of underwater riprap.

17. If I know shad are spawning on docks or riprap, I fish as many as I can in that short window.

18. Because the flow structure in bend is very different from that in straight channel so that their falling distances of rock riprap are also different.

19. The slope is cover with soil at the position where the timber pile is thrown and sand or riprap is collected at the lower of soil covered to reinforce.