CN101749022A - Control method for attitude measurement of push bench with wide angle during slantwise entering hole - Google Patents

Abstract

The invention relates to a control method for attitude measurement of a push bench with a wide angle during slantwise entering a hole, comprising the following steps of: acquiring the coordinate parameters of a central point of the push bench and the coordinate parameters of any two non-collinear points with the central pint on the normal plane of the front end face of the push bench, and controlling elevations of the three points and spatial positions of displacement relative to the hole entrance. The invention has the advantages of controlling inclined entering to the hole of a receiving well with a wide angle and recycling the push bench.

Description

Wide-angle, push-bench control method for attitude measurement when tiltedly entering the hole

Technical field

Measure control method when the present invention relates to a kind of push-bench and entering the hole, particularly a kind of wide-angle, control push-bench control method for attitude measurement when tiltedly entering the hole.

Background technology

Now in urban construction, in order to utilize the underground space better, a large amount of tunnel piercing engineerings is arranged, generally active well is set at two ends, push-bench is put into from an active well, appear at underground another active well that tunnels then, hang active well then and finish the driving in tunnel, when general conventional push-bench advances, the active well of reception place is general to be the vertical hole of advancing with push-bench, and with theoretical numerical value compare absolute altitude and the coordinate of this central point as long as controlling the central point of push-bench end face is benchmark this moment, thereby draw the current attitude of push-bench, and provide foundation for follow-up jacking and attitude adjustment.Above-mentioned measuring method is feasible under normal conditions, this axis of travel that is based on push-bench is passed through the angle α of face with it, substantially in vertical state (90 ℃), and the diameter D of push-bench itself little (push-bench that is significantly smaller than active well usually below 2.8m is accepted Jing Dongquan).Like this, because D/sin α is approximately equal to the D value, be more or less the same.But the width that runs into because of active well is restricted, it is less that then push-bench is accepted the Jing Dong circle, and push-bench is again wide-angle, tiltedly advances the hole (see figure 1), when the α value changes greatly, obviously relatively 90 ℃ the time, especially less than 60 ℃, and when the push-bench diameter is big, D/sin α is just obviously greater than the D value, so the α value both made minor variations, and D/sin α also has bigger variation.When D/sin α＞L value (L is that push-bench is accepted Jing Dong circle width), push-bench just can not enter the hole.So for the major diameter push-bench, wide-angle, oblique when passing through portal, the precision of only controlling its central point is not enough.

Summary of the invention

The objective of the invention is to solve push-bench in the prior art with wide-angle, obliquely only depend on the uncontrollable problem of correctly entering the hole of central point when entering less push-bench and accepting the Jing Dong circle, provide a kind of wide-angle, push-bench control method for attitude measurement when tiltedly entering the hole.The present invention designs wide-angle, control push-bench control method for attitude measurement when tiltedly entering the hole, it is characterized in that: once in the every jacking of push-bench, get the coordinate parameter of push-bench central point, and get on the normal plane of push-bench front end face any two with the central point coordinate parameter of the point of conllinear not, control 3 absolute altitude and displacement locus with respect to the hole.Advantage of the present invention is can correctly control the push-bench wide-angle, obliquely enter into the hole of received well and reclaim push-bench.

Description of drawings

Accompanying drawing 1 advances the hole view for push-bench,

Accompanying drawing 2 is got the position view of coordinate point for push-bench,

Below in conjunction with drawings and Examples the present invention is elaborated,

The specific embodiment

In the every jacking of push-bench once, get the coordinate parameter of push-bench central point, and get on the normal plane of push-bench front end face any two with the central point coordinate parameter of the point of conllinear not, control 3 absolute altitude and displacement locus with respect to the hole.

Once, all should control the absolute altitude and the displacement of its central point.Simultaneously, should measure on the push-bench normal plane absolute altitude and displacement, promptly determine this air coordinates of 2 as 2 of A, the B shown in Fig. 2 shows.Thus, 2 of the central point of push-bench and A, B 3 normal planes of determining push-bench.

Claims (1)

1. wide-angle, control push-bench control method for attitude measurement when tiltedly entering the hole, it is characterized in that: once in the every jacking of push-bench, get the coordinate parameter of push-bench central point, and get on the normal plane of push-bench front end face any two with the central point coordinate parameter of the point of conllinear not, control 3 absolute altitude and displacement locus with respect to the hole.