바로가기메뉴

본문 바로가기 주메뉴 바로가기

(사)한국터널지하공간학회

ISSN : 2233-8292

Article Contents

Prev Next
e-Submission

Vol.17 No.3
Citation Share

Development for prediction system of TBM tunnel face ahead using probe drilling equipment and drilled hole imaging equipment

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2015, v.17 no.3, pp.393-401





& (2015). Development for prediction system of TBM tunnel face ahead using probe drilling equipment and drilled hole imaging equipment. (사)한국터널지하공간학회, 17(3), 393-401.
  • Downloaded
  • Viewed
PDF Download

Abstract

In the construction of a TBM tunnel, it is very important to acquire accurate information of the excavated rock mass for an efficient and safe work. In this study, we developed the prediction system of TBM tunnel face ahead using probe drilling equipment and drilled hole imaging equipment to predict rock mass conditions of the tunnel face ahead. The prediction system consists of the probe drilling equipment, drilled hole imaging equipment and analysis software. The probe drilling equipment has been developed to be applicable to both non-coring and coring. Also the probe drilling equipment can obtain the drilling parameters such as feed pressure, torque pressure, rotation speed, drilling speed and so on. The drilling index is converted to the drilling index RMR through the correlation between a drilling index and core RMR. The developed system verification was carried out through a slope and tunnel field application. From the field application result, the non-coring is four times faster than a coring and the drilling index RMR and core RMR are similar in the distribution range. This system is expected to predict the rock mass conditions of the TBM tunnel face ahead very quickly and efficiently.

keywords
지반평가시스템, 선진시추장비, 시추공벽 영상화 장비, 천공영향변수, 천공지수RMR, Prediction system, Probe drilling equipment, Drilled hole imaging equipment, Drilling parameter, Drilling index RMR

Reference

1.

1. Kahraman, S., Balci, C., Yazici, S., Bilgi, N. (2000), “Prediction of the penetration rate of rotary blast hole drills using a new drillability index”, International Journal of Rock Mechanics and Mining Science, Vol. 37, pp. 729-743.

2.

2. Kim, K.Y., Kim, C.Y., Kim, K.S., Yim, S.B., Seo, K.W. (2009), “Prediction of geological condition ahead of tunnel face using hydraulic drilling data”, Journal of Engineering Geology, Vol. 19, No. 4, pp. 483-492.

3.

3. Kim, K.Y., Kim, C.Y., Kim, K.S., Yoon, H.K. (2008), “A study on drilling parameters using rock specimen drilling test”, KSCE Annual Conference and Civil EXPO 2008, pp. 4294-4297.

4.

4. Teale, R. (1965), “The concept of specific energy in rock drilling”, Int. J. Rock Mech. Mining Sci, Vol. 2, pp. 57-73.

5.

5. Thuro, K. (1997), “Drillability prediction-geological influences in hard rock drill and blast tunnelling”, Geol Rundsch, Vol. 86, 426-438.

6.

6. Yamamoto, T., Shirasagi, S., Yamamoto, S., Mito, Y., Aoki, K. (2003), “Evaluation of the geological condition ahead of the tunnel face by geostatistical techniques using TBM driving data”, Tunneling and Underground Space Technology, Vo. 18, pp. 213-221.

(사)한국터널지하공간학회

e-Submission OA Policy