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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Problems solved by technology

However, according to engineering practice experience, it is difficult to start and correct the deviation of curved pipe jacking, a

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

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[0029] Example 1

[0030] like figure 1 As shown, the concrete curved pipe jacking construction usually includes the curved section jacking construction and the straight section jacking construction. A section of open bend tube G 1 And the second section of the opening and bending tube G 2 . During the jacking construction of the concrete pipe jacking, it mainly depends on the socket and socket of the concrete F pipe for turning, so that during the construction process of the curved section, the concrete jacking pipe is jacked in with a stable radius of curvature. Concrete curved pipe jacking Specifically, a plurality of concrete pipe jacking pipe sections form a curved section pipe section, and the axis of the curved section pipe section is a circular arc curve from a macro perspective, but is actually a polyline formed by a plurality of concrete pipe sections. A part of a polygon whose side is the length of the pipe segment. Before construction, the central angle θ of t...

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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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