Method for monitoring high-supporting mold by adopting laser distance measuring instrument

Abstract

The invention discloses a method for monitoring a high-supporting mold by adopting a laser distance measuring instrument. The method comprises the following steps of S1, arranging a datum point supporting post in an area positioned on the outer side of a high-supporting mold frame body, wherein after downwards penetrating through a soft soil layer, the lower end of the datum point supporting post extends into and is fixed to a bed rock layer, and the upper end of the datum point supporting post upwards extends out of the ground; S2, setting a datum point on the part, extending out of the ground, of the datum point supporting post, and mounting a first laser distance measuring instrument opposite to the datum point on the upper part of the high-supporting mold frame body; and S3, measuring the distance between the first laser distance measuring instrument and the datum point corresponding to the first laser distance measuring instrument, and judging whether the high-supporting mold frame body settles or not and judging the settlement amount according to the change of the distance. Furthermore, whether the index value of the high-supporting mold exceeds a safety range or not is judged by integrating the variations of axial force and inclination angle of the high-supporting mold frame body, and the decision of whether to take corresponding measures or not is made, so that relatively serious even major construction safety accidents are avoided.

Description

technical field [0001] The invention relates to the technical field of building construction monitoring, in particular to a method for monitoring high formwork by using a laser range finder. Background technique [0002] With the development of social economy, the scale of construction projects is getting larger and larger, and more and more engineering construction needs to use high-support formwork auxiliary operations. The height of high formwork generally ranges from a few meters to more than ten meters, and some are even as high as tens of meters. Generally speaking, the higher the height of the high-support formwork, the greater the load-bearing capacity. During the construction process, the high-support formwork system is more likely to collapse. Once the high-support formwork system collapses during the construction process, it will Causing the mass death and injury of the operators on it, leading to larger or even major construction safety accidents. Therefore, in...

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Problems solved by technology

[0004] Among them, the total station is based on the principle of optical testing. Although it can roughly realize the settlement monitoring of most high-supported forms, it still has the following deficiencies: 1. In the process of monitoring the overall settlement of the forms, due to the stability of the soft soil layer Weak, prone to local changes due to the rise and fall of the water level or the effect of external pressure, so the reference point set on the surface of the soft soil layer (or called the ground) (the reference point refers to the need to keep still during the monitoring process The reference point) is easy to settle with the settlement of the surface of the soft soil layer, resulting in its own settlement error and affecting the reliability of monitoring data

2. When the internal rods of the high-support formwork are dense, it is difficult to find a suitable measuring point for the total station to realize all-round one-point measurement; Monitoring labor costs are high

[0005] The relative displacement sensor needs to be measured by steel wire. In the case of complex on-site environment, it is easy to cause the steel wire to break and damage the sensor. Therefore, the reliability of the data cannot be guaranteed.

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