Concrete shunting device for secondary lining construction of hydraulic pressure tunnel

By designing a concrete split device for secondary lining construction of hydraulic pressurized tunnels, the upper and lower chutes are independently controlled by the electric material valve mechanism, the cumbersome problems of chute disassembly and installation are solved, and the rapid layered pouring of concrete is achieved, the construction efficiency is improved and cold joints and pipe blockages are avoided.

CN222686686UActive Publication Date: 2025-03-28CHINA FIRST HIGHWAY ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202421613885.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-03-28
Estimated Expiration
2034-07-09

AI Technical Summary

Technical Problem

In the secondary lining construction of hydraulic pressed tunnels, the lower concrete needs to be dismantled and installed after pouring, which is cumbersome and time-consuming, affecting the continuity of concrete pouring, resulting in cold joints and pipe blockages.

Method used

A concrete diversion device for secondary lining construction of hydraulic pressurized tunnels was designed, including a hopper, bottom and side fabric ports, electric material valve mechanism, etc. Through the independent control of the electric material valve mechanism, rapid layered casting of the upper and lower chutes is achieved.

Benefits of technology

The rapid and layered pouring of concrete is achieved, the continuity of concrete pouring is ensured, the construction efficiency is improved, and problems such as cold joints and pipe blockage are avoided.

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Abstract

The utility model discloses a concrete shunting device for secondary lining construction of a hydraulic pressure tunnel, which relates to the field of tunnel construction and comprises a hopper, at least one bottom material port is arranged at the bottom of the hopper, at least one side material port is arranged on the side surface of the hopper, and electric material valve mechanisms are respectively arranged on the bottom material port and the side material port. The upper-layer chute and the lower-layer chute are arranged, the upper-layer chute and the lower-layer chute are respectively and independently provided with the electric material valve mechanisms, after the lower-layer chute is used, the electric material valve mechanism on the lower layer is closed, so that the lower-layer chute does not convey concrete any more, and meanwhile, the electric material valve mechanism on the upper layer is opened, so that the concrete is conveyed by the upper-layer chute; therefore, the hydraulic pressure tunnel secondary lining concrete can be rapidly poured in a layered mode, the continuity of concrete pouring is guaranteed, the operation efficiency is improved, and the construction quality is guaranteed.
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