Construction method for non-pressure drainage pipeline elevation conflict and non-pressure drainage pipeline system

By constructing a well structure at the intersection of unpressurized drainage pipes and disconnecting and connecting the pipes, a second unpressurized drainage pipe was laid, which solved the problem of the elevation conflict between the existing pipes and the second-phase pipes, and achieved a low-cost and rapid construction solution.

CN122129079APending Publication Date: 2026-06-02MCC CAPITAL ENGINEERING & RESEARCH INC LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MCC CAPITAL ENGINEERING & RESEARCH INC LTD
Filing Date
2026-03-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

During the second phase of construction of the industrial project, the existing unpressurized drainage pipeline conflicts with the second phase pipeline plan, resulting in high construction difficulty, high cost and high risk. Existing solutions affect the operation of the original pipeline or increase the amount of excavation, and cannot effectively resolve the elevation conflict.

Method used

A well structure is constructed at the intersection of the first and second unpressurized drainage pipes. The first unpressurized drainage pipe is disconnected and connected within the well structure. The second unpressurized drainage pipe is laid through the opening in the well structure to ensure that the two do not interfere with each other. The water flow path is optimized by utilizing the inner cavity and groove design of the well structure.

Benefits of technology

Without disrupting the existing pipeline operation, reduce construction costs and time, ensure smooth drainage for both pipelines, minimize impact on the existing pipelines, and shorten the construction period.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122129079A_ABST
    Figure CN122129079A_ABST
Patent Text Reader

Abstract

The application discloses a construction method for elevation conflict of non-pressure drainage pipeline and a non-pressure drainage pipeline system, and relates to the technical field of drainage. The construction method comprises the following steps: excavating to below a first non-pressure drainage pipeline at a crossing of the first non-pressure drainage pipeline and a second non-pressure drainage pipeline; constructing a well structure at the excavation, and in the process, a first opening, a second opening, a third opening and a fourth opening are formed on the side wall of the well structure, and the first non-pressure drainage pipeline passes through the well structure through the first opening and the second opening; and disconnecting the first non-pressure drainage pipeline at the crossing of the first non-pressure drainage pipeline and the second non-pressure drainage pipeline in the interior of the well structure to form a first non-pressure drainage pipeline first part and a first non-pressure drainage pipeline second part. The application can solve the problem of elevation conflict without damaging the original pipeline and affecting the operation of the pipeline, so as to guarantee later-stage drainage, and at the same time, the target of reducing cost and shortening the construction period is achieved.
Need to check novelty before this filing date? Find Prior Art