Direct buried type backfill land settlement observation equipment and settlement observation method

Abstract

The invention discloses direct buried type backfill land settlement observation equipment and a settlement observation method. The equipment comprises a base column, a sleeve, a pull rod type straightline displacement sensor, a flange, a settlement disc, a cable and data acquisition and transmission equipment, wherein the base column is buried into a non-compressed soil layer; the sleeve is arranged between the base column and the flange in a sleeving manner; the pull rod type straight line displacement sensor is arranged inside the sleeve; the head part of the pull rod type straight line displacement sensor is connected with the base column; the tail part of the pull rod type straight line displacement sensor is connected with the flange; the settlement disc is connected with the top ofthe flange; hollow holes are preserved in the middle of the settlement disc and the middle of the flange; one end of the cable is connected with the pull rod type straight line displacement sensor; the other end of the cable penetrates through the preserved hollow holes in the middles of the flange and the settlement disc and is connected with the data acquisition and transmission equipment. The equipment is good in stability, free of construction interference, lower than the ground and not liable to be damaged; moreover, with the combination of the automatic data acquisition and transmissionequipment, settlement data acquisition at any moment for any frequency can be achieved.

Description

technical field [0001] The invention relates to ground subsidence observation, in particular to an instrument and equipment suitable for large-area backfill land reclamation ground subsidence observation and a subsidence observation method. Background technique [0002] Sijiaying Iron Mine is located in Luan County, Tangshan City. It is a rare super-large iron mine in the eastern part of my country. The total iron ore reserves are 2.348 billion tons. The first phase was completed and put into operation in October 2007, with an annual raw ore output of 7 million tons; the second phase was put into operation in 2009, with an annual raw ore output of 8 million tons; after the completion of the next three phases, the annual raw ore output can reach 37 million tons. Such large-scale ore mining is accompanied by a large amount of waste stripped rock, which needs to be transported out of the mining area but is difficult to dispose of, and the acquisition of spoil sites is expensive...

AI Technical Summary

Problems solved by technology

Since the backfill construction uses large-scale dump trucks, excavators, and loaders, such machines have high frequency and large vibration during construction operations, which have a great impact on the accuracy of leveling observation;

[0008] 2. Vulnerable

Due to the large-scale mechanical operation used in the construction, the degree of refinement is difficult to guarantee, and the measuring rod protrudes from the ground surface. If the large-scale equipment is slightly bumped, the settlement plate will be tilted, overturned, and damaged, which directly leads to the failure of data collection;

[0009] 3. Data collection is difficult

Due to the large amount of machinery and equipment in the construction process, the frequency of round trips is fast, and there are many bad weather in the rainy season and winter in the project area, it is often difficult to ensure regular manual leveling observations, and it is difficult to collect data on time

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