CN103245363A - Rolling angle correcting method of automatic measuring and guiding system for pipe jacking - Google Patents

Abstract

The invention relates to the technical field of pipe jacking construction, and particularly relates to a rolling angle correcting method of an automatic measuring and guiding system for pipe jacking. A pipe jacking machine pitches during advancing, and at the moment the end face of the pipe jacking machine is vertical to the horizontal plane, an included angle beta is formed between the end face of the pipe jacking machine and a vertical surface and serves as a pitching angle of the pipe jacking machine, a measured rolling angle of the pipe jacking machine is not the actual rotating angle alpha' of the pipe jacking machine, and the alpha' and the beta are directly read by a clinometer, and thus the rotating angle alpha' of the end face of the pipe jacking machine can be directly calculated through a formula. According to the rolling angle correcting method, the problem of errors generated when the rotating angle and the included angle between the end face of the pipe jacking machine and the vertical surface are measured through pitching of the pipe jacking machine in the prior art is solved, and the effect of the accurate pipe jacking is realized through the correction on the angles.

Description

Push pipe is measured guidance system roll angle modification method automatically

[technical field]

The present invention relates to the pipe jacking construction technique field, be specifically related to a kind of push pipe and measure guidance system roll angle modification method automatically.

[background technology]

Automatically measure the guidance system technical field at push pipe, the general equipment that adopts comprises that push pipe measures guidance system automatically, this system is made up of a plurality of automatic survey station that is installed in the pipeline, each survey station mainly comprises a full war instrument automatically, prism is installed on the total powerstation, under the instruction of control computing machine and application tool, the prism on the adjacent total powerstation is sighted and measured to total powerstation automatically, total powerstation is installed in the pipeline of the positive jacking of push bench, pipeline can produce error in the construction, and it is as follows to work the source of error that produces:

As shown in Figure 1, when push bench tunnels, the roll angle that inclinator is measured and surface level have an angle α, when pitching does not take place in push bench, it is vertical with surface level then to cross the push bench end face, and the roll angle α that inclinator is measured then is the angle of rotation α ' of push bench.But pitching can take place in push bench when advancing, and this moment, the end face of push bench was vertical with surface level.If the angle of push bench end face and plummet face is β, β is the angle of pitch of push bench, and the roll angle of the push bench that measure this moment is not the real angle of rotation α ' of push bench.Must revise.

[summary of the invention]

Angle of rotation, push bench end face and the plummet face angle of measuring when remedying push bench generation pitching in the prior art can produce the defective of error, the invention provides a kind of push pipe and measures guidance system roll angle modification method automatically.

To achieve these goals, on the basis of described prior art, design a kind of push pipe and measure guidance system roll angle modification method automatically, when push bench tunnels, there are angle α in roll angle and surface level that inclinator is measured, when pitching does not take place in push bench, it is vertical with surface level then to cross the push bench end face, the roll angle α that inclinator is measured then is the angle of rotation α ' of push bench, but pitching can take place in push bench when advancing, this moment, the end face of push bench was vertical with surface level, if the angle of push bench end face and plummet face is β, β is the angle of pitch of push bench, and the roll angle of the push bench that measure this moment is not the real angle of rotation α ' of push bench, must revise

If the angle of rotation of dipmeter survey is α, push bench actual rotation angle is α ', establishes dipmeter survey

The angle of pitch is β,

In vertical guide,

In the push bench end face,

A' is the projection of straight line a on the push bench end face, and b' is the projection of straight line b on the push bench end face, has following relation:

a'＝a*cosβ

b'＝b

$\tan {\mathrm{\α}}^{\′}=\frac{b^{\′}}{a^{\′}}=b/a\cos \mathrm{\β}=\frac{\tan \mathrm{\α}}{\cos \mathrm{\β}}$

α, β directly reads by inclinator, therefore can directly calculate the angle of rotation α ' of push bench end face by following formula.

The invention solves the error problem when push bench generation pitching is measurement angle of rotation, push bench end face and plummet face angle in the prior art, by the correction for angle, realized the effect of accurate push pipe.

[description of drawings]

Fig. 1 is the synoptic diagram of push bench end face of the prior art;

Fig. 2 is the local enlarged diagram of push bench end face;

α is the roll angle of inclinator measurement and the angle of surface level among the figure;

The angle of rotation of α ' push bench;

The angle of β push bench end face and plummet face

A and b are straight line,

A ' is the projection of straight line a on the push bench end face,

B ' is the projection of straight line b on the push bench end face.

[embodiment]

In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention is further elaborated, should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.

Embodiment 1:

The push pipe that present embodiment adopts is measured the guidance system system automatically and is made up of a plurality of automatic survey station that is installed in the pipeline, each survey station mainly comprises a full war instrument automatically, prism is installed on the total powerstation, under the instruction of control computing machine and application tool, the prism on the adjacent total powerstation is sighted and measured to total powerstation automatically, total powerstation is installed in the pipeline of the positive jacking of push bench

Shown in Figure 2 as Fig. 1, when push bench tunnels, pitching takes place, the roll angle of the push bench of measurement

Be not the real angle of rotation α ' of push bench, must revise that its concrete steps are as follows:

As shown in Figure 2, the angle of rotation of establishing dipmeter survey is α, and push bench actual rotation angle is α ', and the angle of pitch of establishing dipmeter survey is β,

In vertical guide,

In the push bench end face,

A' is the projection of straight line a on the push bench end face, and b' is the projection of straight line b on the push bench end face, has following relation:

a'＝a*cosβ

b'＝b

$\tan {\mathrm{\α}}^{\′}=\frac{b^{\′}}{a^{\′}}=b/a\cos \mathrm{\β}=\frac{\tan \mathrm{\α}}{\cos \mathrm{\β}}$

Therefore α, β directly reads by inclinator, can directly calculate the angle of rotation α ' of push bench end face by following formula, according to this correction numerical value push bench is revised, thereby has been realized the effect of accurate push pipe.

Claims (1)

1. a push pipe is measured guidance system roll angle modification method automatically, comprise that push pipe measures guidance system automatically, described system is made up of a plurality of automatic survey station that is installed in the pipeline, each survey station mainly comprises a full war instrument automatically, prism is installed, on the total powerstation under the instruction of control computing machine and application tool, the prism on the adjacent total powerstation is sighted and measured to total powerstation automatically, total powerstation is installed in the pipeline of the positive jacking of push bench, and pipeline can produce error in the construction

It is characterized in that this round-off error method is:

When push bench tunnels, the roll angle that inclinator is measured is the angle α with surface level, when pitching does not take place in push bench, it is vertical with surface level then to cross the push bench end face, the roll angle α that inclinator is measured then is the angle of rotation α ' of push bench, but pitching can take place in push bench when advancing, this moment, the end face of push bench was vertical with surface level, and the angle of establishing push bench end face and plummet face is β, and β is the angle of pitch of push bench, the roll angle of the push bench that measure this moment is not the real angle of rotation α ' of push bench, must revise, the angle of rotation of establishing dipmeter survey is α, and push bench actual rotation angle is α ', if the angle of pitch of dipmeter survey is β

In vertical guide,

In the push bench end face,

A' is the projection of straight line a on the push bench end face, and b' is the projection of straight line b on the push bench end face, has following relation:

a'＝a*cosβ

b'＝b

$\tan {\mathrm{\α}}^{\′}=\frac{b^{\′}}{a^{\′}}=b/a\cos \mathrm{\β}=\frac{\tan \mathrm{\α}}{\cos \mathrm{\β}}$

α, β directly reads by inclinator, therefore can directly calculate the angle of rotation α ' of push bench end face by following formula.

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