An underwater drill bit for preparing cementitious gravel dam materials

Abstract

The invention discloses an underwater drill bit for preparing a material of a cemented sand and gravel dam. The underwater drill bit comprises a lifting platform, a hollow sliding barrel is arranged at the lower end of the lifting platform, a first hydraulic telescopic cylinder is arranged in the sliding barrel, and the first hydraulic telescopic cylinder is fixed on the lifting platform; a drillbit motor is arranged at the lower end of the first hydraulic telescopic cylinder, the drill bit motor is in sliding connection with the sliding barrel, and an alloy drill bit is connected to a rotating shaft of the drill bit motor; cutting motors are arranged on the two sides of the sliding barrel, cutting shafts are connected to rotating shafts of the cutting motors, and cutting tool bits are installed at the end parts of the cutting shafts; and a mechanical arm is installed on the lifting platform, and a mechanical claw is arranged at the end of the mechanical arm. The underwater drill bitis reasonable in design, and can effectively cut and crush large-particle-diameter materials of underwater deposits and underwater caked objects, the underwater deposits and underwater caked objects are used for serving as the material for the cemented sand and gravel dam, and the purpose of resource reutilization is achieved.

Description

technical field [0001] The invention relates to the technical field of preparing cemented sand and gravel dam materials, in particular to an underwater drill bit used for preparing cemented sand and gravel dam materials. Background technique [0002] The cemented sand and gravel dam is a new type of dam developed on the basis of face dams and roller compacted concrete gravity dams. It is characterized by the use of cemented sand and gravel materials for dam construction, and the use of high-efficiency earth-rock transport machinery and compaction machinery for construction. . Cemented sand gravel dam dam construction materials are easy to obtain, simple to mix, and use less cement. It is not only economical and safe, but also can make full use of the waste materials in the construction process to reduce the impact on the surrounding environment. Cemented sand and gravel dams have relatively low requirements on dam building materials, construction techniques and dam foundati...

AI Technical Summary

Problems solved by technology

[0003] The silt in the river section is common. The silt material has a wide range of gradation and large particle size, and usually contains a large proportion of rocks and some sundries. Especially in some deep water areas, large particle size materials are hardened underwater, making it difficult to dredge the material. re-use with resources

However, river silt is the best material for building cemented sand and gravel dams. However, due to high mining costs and difficulties in mining, it has brought obstacles to the popularization and promotion of cemented sand and gravel dams in our country.

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