Practice of Slip Surface Depth of Highway Slope Determined by Synthetic Survey Method

Abstract:

The excavation roadbed was used in K29+450～900 sections of secondary highway from Gengma to Qingshui River. The design roadbed width was 12m, and after an excavation, the inclination of side slope was between 27 to 50 °. It is Nanting River below bed and the vertical distance is 20m between them. Under actions of external load, mountain slipping and river scouring, there appears an instable phenomenon in slope. The pile board wall had inclined which is located in the central section of one side of roadbed and close to K29+900 section after construction. The inclining range was larger and the inclination that was serious at pile head at the top reached about 2m. The research was focused on a side slope engineering in K29+450~900 sections and through site survey, the topography and geological features of slope were known and mastered. By drilling, high-density electric method and numerical simulation method, the depth and scope of slip surface were determined to provide a basis for governance programme of engineering reinforcement.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 337-342
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.337
• Online since: March 2013
• Authors: Cheng Liang Zhang, Chun Wang, Lei Liu
• Keywords: Highway Slope, Slip Surface, Survey

References

[1] Min Huang. Stability Analysis and Instability Control of Highway Side Slope[J]. China New Technologies and Products , 2009(19): 72~75.

[2] Jun Wang, Lianzhong Li, Dongxiao Wang, A Research on the Stability of Highway Side Slope[J], Communications Science and Technology Heilongjiang, 2010, 191(1): 62~64.

[3] Institute of Rock and Soil Mechanics, Chinese Academy Sciences. Experimental Investigation and Computational Methods for Rocky Slope Stability[M], Beijing: Science Press, (1981).

[4] Liu-qing Hu, Xi-bing Li, Shi-you Wen, The Stability Research of Slope and Its Developing Trend[J], Mining Research and Development, 2000, 20(5): 7~8.

[5] Yuan-you Xia, Rui-geng Zhu. Expert System Development of Slope Stability Analysis[J]. Journal of Catastrophology, 1997, 12(4): 10~14.

[6] Jian-cheng Du, Da-shou Huang, Ding Hu. Three-dimensional Method of Limiting Equilibrium for Stability Analysis of Slope[J], Journal of Sichuan University , 2001, 33(4): 9~12.

[7] Shang-yi Zhao, Wei-min Shi, Ying-ren Zheng. Fem Method of Slope Stability Analysis[J]. Underground Space, 2001, 21(5): 450~454.

[8] Yu Zeng, Hong-wu Xu, Jun Yi, Zeng-hua Liu, Application of High Density Electric Method in Highway Slope Exploration[J], Highways & Automotive Applications, 2009(1): 92~94.

[9] Hao-peng Wang. Application of High Density Electric Method in Identification of Landslide Mass Causes[J], China New Technologies and Products , 2010: 23~48.