Design and Implementation of a Chain-Type Direct Push Drilling Rig for Contaminated Sites

Pinghe Sun; Shengwei Zhou; Han Cao; Guojun Cai; Shaohe Zhang; Qiang Gao; Gongbi Cheng; Biao Liu; Gongping Liu; Xinxin Zhang; Yun Liu; Dongyu Wu; Zhenyu Ding; Lan Zeng; Guangdong Liao; Leilei Liu; Xiaokang Wang; Ting Xiao; Jing Jin; Hanhan Yang

doi:10.3390/ijerph20043757

Design and Implementation of a Chain-Type Direct Push Drilling Rig for Contaminated Sites

Int J Environ Res Public Health. 2023 Feb 20;20(4):3757. doi: 10.3390/ijerph20043757.

Authors

Pinghe Sun^{1

2}, Shengwei Zhou^{1

2}, Han Cao^{1

2}, Guojun Cai³, Shaohe Zhang^{1

2}, Qiang Gao^{1

2}, Gongbi Cheng⁴, Biao Liu^{1

2}, Gongping Liu⁵, Xinxin Zhang^{1

2}, Yun Liu⁶, Dongyu Wu^{1

2}, Zhenyu Ding⁷, Lan Zeng^{1

2}, Guangdong Liao⁸, Leilei Liu^{1

2}, Xiaokang Wang⁴, Ting Xiao^{1

2}, Jing Jin⁸, Hanhan Yang^{1

2}

Affiliations

¹ Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, Changsha 410083, China.
² School of Geosciences and Info-Physics, Central South University, Changsha 410083, China.
³ School of Civil Engineering, Anhui Jianzhu University, Hefei 230601, China.
⁴ Jiangsu Gaiya Environmental Science and Technology Co., Ltd., Suzhou 215000, China.
⁵ College of Chemical Engineering, Nanjing Tech University, Nanjing 211189, China.
⁶ Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
⁷ Chinese Academy of Environmental Planning, Ministry of Environmental Protection of China, Beijing 100012, China.
⁸ Suntime Environmental Remediation Co., Ltd., Changzhou 213000, China.

Abstract

For sites where volatile organic compounds are present, the direct push method, in combination with other sensors for investigation, is a powerful method. The investigation process is an integrated drilling and sensing process, but the trajectory of the probe carrying the sensor is ambiguous. This paper explores and introduces the application of a chain-type direct push drilling rig by designing and building a chain-type direct push miniature drilling rig. This rig allows for indoor experimental studies of direct push trajectories. The chain-type direct push drilling model is proposed based on the mechanism of chain transmission. The drilling rig provides a steady direct thrust through the chain, which is driven by a hydraulic motor. In addition, the drilling tests and results described prove that the chain could be applied to direct push drilling. The chain-type direct push drilling rig can drill to a depth of 1940 mm in single-pass and up to 20,000 mm in multiple passes. The test results also indicate that it drills a total length of 462.461 mm and stops after 87.545 s of operation. The machine can provide a drilling angle of 0-90° and keep the borehole angle fluctuating within 0.6° with the characteristics of strong adjustability, flexibility, continuity, stability, and low disturbance, which is of great value and significance for studying the drilling trajectory of direct push tools and obtaining more accurate investigation data.

Keywords: chain-type; contaminated sites investigation; direct push drilling rig; lightweight drilling rig.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Manipulation, Osteopathic*
Process Assessment, Health Care
Volatile Organic Compounds*

Substances

Volatile Organic Compounds

Grants and funding

This research was funded by the National Key Research and Development Program of China, grant number 2020YFC1807203, and the Fundamental Research Funds for the Central Universities of Central South University, grant number 1053320215470).