Pipe connecting device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 上海尤加工程机械科技有限公司
- Publication Date
- 2014-04-02
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to tunnel construction equipment, in particular to a connector for connecting extended steel pipes and hoses. Background technique
[0002] With the rapid development of my country's underground space development and utilization, there are more and more construction projects such as subway tunnels, highway tunnels, and municipal pipelines. Most of these projects use large-diameter mud-water balance shield machines for construction. At the same time, a certain pressure water is injected through the ground to generate a certain balance pressure between the cutter head and the soil layer to ensure that the soil layer in front will not collapse. At the same time, the pressure water dilutes the excavated soil and is pumped out by the mud pump to the ground for mud-water separation. Due to the continuous advancement of the shield, the steel pipes that inject pressure water into the front of the shield from the ground and the steel pipes ...