Subsurface Drainage for Slope Stabilization

2013 ◽  
pp. 577-585 ◽  
Author(s):  
Gianfranco Urciuoli ◽  
Marianna Pirone
Keyword(s):  
Subsurface Drainage ◽  
Slope Stabilization

scholarly journals Evaluating the Efficiency of Subsurface Drainages for Li-Shan Landslide in Taiwan

2016 ◽  
Author(s):  
Der-Guey Lin ◽  
Sheng-Hsiung Hung ◽  
Cheng-Yu Ku ◽  
Hsun-Chuan Chan
Keyword(s):  
Subsurface Drainage ◽  
Return Periods ◽  
Sliding Surface ◽  
Slope Stabilization ◽  
Drainage Systems ◽  
Sliding Surfaces ◽  
Long Duration ◽  
Drainage Wells ◽  
Horizontal Drains ◽  
Central Taiwan

Abstract. This study investigates the efficiency of subsurface drainage systems includes drainage wells (vertical shaft with drainage boreholes or horizontal drains) and drainage galleries (longitudinal tunnel with sub-vertical drainage boreholes) for the slope stabilization of Li-Shan landslide in central Taiwan. The efficiency of the subsurface drainages is verified through a series of two-dimensional (2-D) rainfall induced seepage and slope stability analyses without and with subsurface drainages remediation during two typhoon events. Numerical results and monitoring data both show that the groundwater level at B5 monitoring station with subsurface drainages remediation during Toraji Typhoon (2001) is about 40 m lower than that without remediation during Amber Typhoon (1997), and the factor of safety Fs of the first potential sliding surface (1st-PSS, the most critical potential sliding surface) is promoted simultaneously from 1.096 to 1.228 due to the function of subsurface drainage systems. In addition, the Fs values of the three potential sliding surfaces (1st- PSS, 2nd-PSS, and 3rd-PSS) stabilized by subsurface drainage systems are constantly maintained greater than unity (FS>1.0 or FS≥1.217) during rainfalls with return periods increases from 25 to 50 and 100 years. This demonstrates the subsurface drainage systems in Li-Shan landslide are functional and capable of accelerating the drainage of infiltration rainwater induced from high intensity and long duration rainfall and protect the slope of landslide from further deterioration.

Subsurface drainage for slope stabilization

2001 ◽  
Vol 39 (01) ◽  
pp. 39-0333-39-0333
Keyword(s):  
Subsurface Drainage ◽  
Slope Stabilization

Subsurface Drainage for Slope Stabilization

2001 ◽  
Author(s):  
Kevin Forrester
Keyword(s):  
Subsurface Drainage ◽  
Slope Stabilization

DEVELOPING AND SELECTING SLOPE STABILIZATION TECHNIQUES IN MANAGING SLOPE FAILURES

2016 ◽  
Vol 12 (4) ◽  
Author(s):  
Ari Sandyavitri
Keyword(s):  
Retaining Wall ◽  
Value Engineering ◽  
Rating Systems ◽  
Slope Stabilization ◽  
Rockfall Hazard ◽  
Proactive Approach ◽  
West Sumatra ◽  
Hazard Rating ◽  
Hazard Rating Systems ◽  
Steep Slopes

This paper objectives are to; (i) identification of risky slopes (within 4 Provinces in Sumatra including Provinces of Riau, West Sumatra, Jambi and South Sumatra encompassing 840 kms of the “Jalan Lintas Sumatra” highway) based on Rockfall Hazard Rating Systems (RHRS) method; (ii) developing alternatives to stabilize slope hazards, and (iii) selecting appropriate slopes stabilization techniques based on both proactive approach and value engineering one. Based on the Rockfall Hazard Rating Systems (RHRS) method, it was identified 109 steep slopes prone to failure within this highway section. Approximately, 15 slopes were identified as potential high-risk slopes (RHRS scores were calculated >200 points). Based on the proactive approach, seven riskiest slopes ware identified. The preferred stabilization alternatives to remedy most of these slopes are suggested as follow; either (i) a combination of retaining wall and drainage, or (ii) gabion structure and drainage. However, different approaches may yield different results, there are at least 2 main consideration in prioritizing slope stabilization; (i) based on the riskiest slopes, and(ii) the least expensive stabilization alternatives.

Fertilizer and Swine Manure Management Systems: Impacts on Crop Production and Nitrate-Nitrogen Leaching with Subsurface Drainage

2003 ◽  
Author(s):  
Rameshwar S. Kanwar ◽  
Carl H. Pederson ◽  
James L. Baker ◽  
Antonio P. Mallarino ◽  
John E. Sawyer ◽  
...  
Keyword(s):  
Crop Production ◽  
Nitrate Nitrogen ◽  
Swine Manure ◽  
Subsurface Drainage ◽  
Nitrogen Leaching ◽  
Management Systems ◽  
Manure Management

scholarly journals A Case Study of a Large Unstable Mass Stabilization: “El Portalet” Pass at the Central Spanish Pyrenees

2021 ◽  
Vol 11 (16) ◽  
pp. 7176
Author(s):  
Guillermo Cobos ◽  
Miguel Ángel Eguibar ◽  
Francisco Javier Torrijo ◽  
Julio Garzón-Roca
Keyword(s):  
Water Table ◽  
Critical Factor ◽  
Slope Stabilization ◽  
Survey Techniques ◽  
Geotechnical Investigations ◽  
Spanish Pyrenees ◽  
Parking Lot ◽  
Unstable Slope ◽  
Total Stability

This case study presents the engineering approach conducted for stabilizing a landslide that occurred at “El Portalet” Pass in the Central Spanish Pyrenees activated due to the construction of a parking lot. Unlike common slope stabilization cases, measures projected here were aimed at slowing and controlling the landslide, and not completely stopping the movement. This decision was taken due to the slow movement of the landslide and the large unstable mass involved. The degree of success of the stabilization measures was assessed by stability analyses and data obtained from different geotechnical investigations and satellite survey techniques such as GB-SAR and DinSAR conducted by different authors in the area under study. The water table was found to be a critical factor in the landslide’s stability, and the tendency of the unstable slope for null movement (total stability) was related to the water table lowering process, which needs more than 10 years to occur due to regional and climatic issues. Results showed a good performance of the stabilization measures to control the landslide, demonstrating the effectiveness of the approach followed, and which became an example of a good response to the classical engineering duality cost–safety.

scholarly journals Application of artificial neural networks to the design of subsurface drainage systems in Libyan agricultural projects

2021 ◽  
Vol 35 ◽  
pp. 100832
Author(s):  
Murad A. Ellafi ◽  
Lynda K. Deeks ◽  
Robert W. Simmons
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Subsurface Drainage ◽  
Drainage Systems ◽  
Artificial Neural

Effects of chemical precipitation on the permeability of geotextile envelopes for subsurface drainage systems in arid areas

2021 ◽  
Author(s):  
Chenyao Guo ◽  
Haoyu Yang ◽  
Zhongbing Lin ◽  
Jingwei Wu ◽  
Hang Li ◽  
...  
Keyword(s):  
Chemical Precipitation ◽  
Subsurface Drainage ◽  
Arid Areas ◽  
Drainage Systems
Sign in / Sign up

Export Citation Format

Share Document