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Curve staring method of concrete curve jacking pipe

A concrete and curve technology, applied in the direction of earthwork drilling, pipes, rigid pipes, etc., can solve the problems of difficulty in opening and bending correction of curved pipe jacking, and the inability of correction cylinder to complete the correction operation, saving construction time, achieving significant economic benefits and reducing The effect of space occupation

Inactive Publication Date: 2018-06-01
SHANGHAI MUNICIPAL CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to engineering practice experience, it is difficult to start and correct the deviation of curved pipe jacking, and the deviation correction operation cannot be completed only through the deviation correction cylinder of the pipe jacking machine

Method used

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  • Curve staring method of concrete curve jacking pipe
  • Curve staring method of concrete curve jacking pipe
  • Curve staring method of concrete curve jacking pipe

Examples

Experimental program
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Embodiment 1

[0030] Such as figure 1 As shown, concrete curved pipe jacking construction usually includes curved section jacking construction and straight line section jacking construction. Concrete curved pipe jacking concrete curved pipe jacking includes pipe jacking machines 1, A section of open pipe G 1 And the second section of Kaiqu pipe G 2 . During the concrete pipe jacking construction, the socket of the concrete F pipe is mainly relied on for turning, so that during the construction process of the curved section, the concrete pipe jacking construction is carried out with a stable radius of curvature. Concrete curved pipe jacking Specifically, multiple concrete pipe jacking pipe joints form a curved pipe joint, and the axis of the curved pipe joint is a circular arc curve from a macroscopic point of view. In fact, it is a broken line formed by multiple concrete pipe joints. A portion of a polygon, the sides of which are the pipe lengths. Before construction, the central angle ...

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Abstract

The invention relates to a curve starting method of a concrete curve jacking pipe, and belongs to the technical field of building projects. The curve starting method is used for solving the problem ofcurve starting control in the jacking process of the concrete curve jacking pipe. According to the curve starting method of the concrete curve jacking pipe, on the basis that the curve jacking trackof the concrete jacking pipe by a pipe jacking machine, follow-up two sections of curve starting pipes and rectifying systems such as auxiliary rectifying is controlled, it is ensured that in the curve section construction process, the concrete curve jacking pipe jacks forwards at a stable curvature radius by calculating the opening amount of the curve section, the situation that measuring and rectifying work needs to be conducted manually when each curve starting pipe reaches the initial point of the curve section curve starting mileage is avoided, and thus the construction time is shortened.The concrete curve jacking pipe reduces occupation of a great deal of fields, and outstanding economic benefits are brought.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a bending method for concrete curved pipe jacking. Background technique [0002] S-shaped concrete curve pipe jacking is used in the pipe network expansion project of a sewage treatment plant. The S-shaped hyperbolic pipe jacking in this section is Ф2200 concrete pipe jacking, and the jacking length is 613.75m (straight line 125.21+curve 270.00+straight line 46.51+curve 112.17+ The straight line is 59.86), the radius of curvature is 800, the pipe jacking soil is about 8.38m~8.81m, and the main soil layer is ⑤ 1 Silt sandwiched with silt and ⑤ 2 silt. However, according to engineering practice experience, it is difficult to start and correct the deviation of curved pipe jacking, and the deviation correction operation cannot be completed only by the deviation correction cylinder of the pipe jacking machine. Therefore, how to provide a method for opening curved c...

Claims

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Application Information

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IPC IPC(8): E21D9/10F16L9/08F16L25/00
CPCE21D9/10F16L9/08F16L25/00
Inventor 严国仙夏天陈强韩举宇芦佳佳
Owner SHANGHAI MUNICIPAL CONSTR
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