Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)

Study of Control Well to Prevent Landslides Risk During Construction of Cisumdawu Toll Road

Authors
Syifa Alfina Sholehah1, Agus Suyono2, *, Bambang Setio Budianto2, Iin Karnisah2
1Applied Infrastructure Post Graduatue Program, Politeknik Negeri Bandung, Indonesia.
2Departement of Civil Engineering, Politeknik Negeri Bandung, Indonesia.
*Corresponding Author e-mail: agus.suyono@polban.ac.id
Corresponding Author
Agus Suyono
Available Online 23 November 2021.
DOI
10.2991/aer.k.211106.072How to use a DOI?
Keywords
Control Well; Landslides; Plaxis 2D; Infiltration Discharge
Abstract

Landslides often occur in the Cisumdawu toll road area. The reason is that the toll road section is located in a basin surrounded by three volcanic mountains, namely Mount Tampomas, Manglayang, and Patuha, so that it has geographical conditions in the form of ravines and cliffs that have steep slopes. The purpose of this research is to study the control well planning as a short term/temporary solution (during the construction period of 3-5 years) that can be carried out in the construction of the Cisumdawu Toll Road project section 1 phase 3 at STA 0+975 in order to be safe from hydrological disasters which are expected to modeled on other toll road construction projects in need. The research phase begins with the primary data collection phase through soil sampling, soil laboratory testing, and documentation of existing conditions. Secondary data in the form of rainfall data, contour maps, postal maps of rainfall, and drilling log data. Furthermore, the data processing stage begins with geotechnical analysis in the form of taking soil samples which are then tested in the laboratory, as well as slope stability analysis using the finite element method, namely Plaxis 2D software in three conditions, namely before excavation, after excavation without load and after excavation with traffic loads to determine groundwater level at safe conditions (SF > 1.25). The second stage is a hydrological analysis to calculate the intensity of rainfall with a return period, calculate the infiltration discharge and end with the planning of control wells. Control wells are planned to keep the groundwater level from exceeding the critical water level, which can cause landslides. From the research, the planned control well has a diameter of 1 m which is dug as deep as 10 m, with the choice of a centrifugal pump which has a diameter of 12 inches, a total head of 10 m, and a discharge of 14 m3/ min and equipped Water Level Control (WLC) as sensors.

Copyright
© 2021 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

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Volume Title
Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
Series
Advances in Engineering Research
Publication Date
23 November 2021
ISBN
10.2991/aer.k.211106.072
ISSN
2352-5401
DOI
10.2991/aer.k.211106.072How to use a DOI?
Copyright
© 2021 The Authors. Published by Atlantis Press International B.V.
Open Access
This is an open access article under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Syifa Alfina Sholehah
AU  - Agus Suyono
AU  - Bambang Setio Budianto
AU  - Iin Karnisah
PY  - 2021
DA  - 2021/11/23
TI  - Study of Control Well to Prevent Landslides Risk During Construction of Cisumdawu Toll Road
BT  - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
PB  - Atlantis Press
SP  - 456
EP  - 464
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211106.072
DO  - 10.2991/aer.k.211106.072
ID  - Sholehah2021
ER  -