Method for monitoring soil gas by field surveying

A soil gas, site technology, used in the analysis of gas mixtures, measurement devices, sampling, etc.
CN105548481AInactive Publication Date: 2016-05-04NANJING SREMOL ENVIRONMENTAL TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING SREMOL ENVIRONMENTAL TECH
Publication Date
2016-05-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a method for monitoring soil gas by field surveying. The method comprises the following steps: selecting sites, which can be conveniently directionally drilled in the horizontal direction, of the periphery of a building or other obstacles; drilling by using a horizontal drilling tool; carrying out horizontal drilling under the building or the other obstacles, wherein a guiding device and a soil gas collection and transmission device are integrated on a drill bit at the front section of the drilling tool, and the guiding device integrated on the drill bit is connected with a receiving device on the ground in a wireless manner so as to ensure the position and depth of the underground drill bit; and when the drill bit is horizontally drilled into soil, adjusting the position of the drill bit in time if a condition that the drill bit deviates from an existing track occurs, so as to ensure that the drill bit reaches appointed depth and position in the soil.
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Description

1. Technical field

[0001] The invention relates to a method for monitoring soil gas in a site, in particular to a method for monitoring polluted soil gas in buildings or other obstacle sites. 2. Background technology:

[0002] Soil gas monitoring includes the monitoring of volatile organic gases, oxygen, carbon dioxide, etc. in the soil. In the early stage of site investigation, for some suspected or confirmed polluted sites, soil gas monitoring is one of the important means to judge whether the soil of the site is polluted or to preliminarily judge the degree of soil pollution.

[0003] At present, for soil gas monitoring, professional equipment such as Geoprobe is generally used to monitor the gas composition and content in soil qualitatively or semi-quantitatively through an online monitoring system using vertical drilling. However, when soil gas monitoring is performed on sites where existing buildings or other obstacles (such as rivers, landfills, etc.) , Professional...

Claims

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