2012 9 9 168 JOURNAL OF RAILWAY ENGINEERING SOCIETY Sep 2012 NO. 9 Ser. 168 1006-2106 2012 09-0039 - 06 ( 中国土木工程集团有限公司, 北京 100038) M3 1 2 6. 5 ~ 20. 5 m 15. 5 ~ 31 m 13 mm 0. 42 /d 3 U418. 5 + 5 A Application of Monitoring Technology for Deep Displacement in Treatment of Landslide of Algeria East - West Highway SHI Dan China Civil Engineering Construction Corporation Beijing 100038 China Abstract Research purposes As the sliding surface and sliding bed of one or two landslides in the bidding M3 section of the Algeria East - West Highway Project were formed of gravel it was difficult to confirm the position of sliding surface by identifying and analyzing the drill core. If the position of sliding surface can not be correctly judged it will cause the waste of the engineering cost or make the project unsuccessful. Research conclusions 1 The existence of the old landslide mass and the relative loose earth structure were the premises of the landslide happening of landslide. As the landslide soil was weakened by seepage of the continuous rainfall the weight of soil body increased. The high slope was formed by the earth excavation without taking the appropriate supporting measures. All these factors caused landslides when the rock and earth mass arised from the slide plane. 2 The monitoring of the deep displacement quantitatively verified that this landslide had been movable in many times with the characteristics of multilayer landslide soil. The shallow slide plane was 6. 5-20. 5 m away from the earth surface and the deep slide plane was 15. 5-31 m away from the earth surface. The total displacement of slide plane was 13m and the maximum deformation rate of the slide plane was 0. 42 mm per day. 3 The monitoring technology for deep displacement was particularly available for the cases that the investment was limited the geological formation was complicated and the position of sliding surface was difficult to be judged by drilling. It would play a more and more important role in the security monitoring and evaluation of the treatment effect to assist the survey and design of landslide treatment. Key words marlite side slope inclinometer monitoring technology for deep displacement treatment of landslide 2012-02 - 07 11-09C 11-1981
40 2012 9 1-4 1 1. 1 CX - 06A 1 a 1 CX - 06A ΣLsinδ θ 1. 3 80 ~ 100 m 50 4 mm /15 m 1 b 0. 001 V - 10 ~ 50 7. 84 10 5 ~ 9. 806 10 5 Pa 80 ~ 100 m 100 g 0.02 mm/8 2. 5 ± 0. 01 v/g 500 mm 0. 5 m 32 mm 660 mm 2 2. 1 30 mm 50 m ± 3 2. 2 1. 2 g g 5 m 2. 3 1 c δ θ L 3 ~ 5 m
9 41 328 ~ 389 m 60 m 20 80 PK 145 + 100 80 m 95 2. 4 5 2 3 2 M3 RPK 144 + 740 - PK 145 + 157 3. 1. 2. 2 PK 144 + 900 1 6 1. 5 1 3 m 3 PK 145 + 100 42 m 8 2008 4 2 4 2009 4 20 90% 1 PK 144 + 900 2008 10 15 PK 144 + 967 ~ PK 145 + 157 PK 145 + 100 2009 04 20 RPK - ~ 144 + 740 ~ PK 144 + 967 RPK 144 + 900 25 cm 200 m 5 3. 1 0. 2 ~ 1. 2 m 3. 1. 1 10 ~ 25 0. 4 ~ 1. 0 m 0. 25g SR06 0. 2 L /s 3. 1. 2 3. 1. 2. 1 PK 144 + 900 200 m 200 m 170 162 332 ~ 361 m 29 m 8 m 3 PK 144 + 900
42 2012 9 2 PK 145 + 100 40 m PK 145 + 100 3. 2 10 4 2 4 6 4 PK 145 + 100 SR02 35. 0 m 6 14 3. 1. 2. 3 7 19 9 6. 5 m PK 144 + 900 2009 4 13 9 mm 15. 5 m 4 20 7 mm 5 20 0. 26 mm /d 5 a SR05 40. 0 m 6 8 7 19 10 20 mm 200 mm 31. 0 m 13 mm 300 mm 0. 32 mm /d 5 b SR06 46. 0 m 6 30 7 19 5 20. 5 m PK 145 + 100 7 mm 31. 0 m 2008 11 2009 4 8 mm 0. 42 mm /d 5 c SR09 28. 0 m 6 21 7 19 6 5 d 3. 1. 2. 4 PK 144 + 900 SR06 TC01
9 43 5
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