Landslide Mitigation of Banjir Kanal Semarang, with Grouting Method

Abstract

Indonesia is aprone’s country to the occurrence of mass movements. These disasters often occur in various regions, especially during the winter. Banjir Kanal is one of the locations of landslides from the observation in the field, the type of ground motion that occurs in the research area such as slump, it caused by the intense weathering of rocks and triggered by a condition of ground water level, Vibration, and human activities. Soil material at the research area such as claystone as the original soil and sandy clay stone as fill soil. The soil conditions and slope angle that very steep about 60 degree is a factors causing mass movement. The purpose of this research to determine the type of ground motion, causes and triggers of mass movement at the research area, and to know the success level of grouting methods to overcome them. The research method that used is descriptive method and experimental methods. Slope stability analysis used by the Fellenius method that calculated to determine the value of safety factor (Fs) at the study site. Based on the results of such simulations could be seen that after the implementation of grouting, soil cohesion increased.

The Relationship of Lithology with Landslide Occurrences in Banyumanik and Tembalang Districts, Semarang City

“…Several studies on landslides in Semarang City with various topics have been carried out. Among them were carried out in the period between 2017 to 2021 by Hani'ah et al [2], Yulianto et al [3] [4], Supriyadi et al [5], Tjahjono et al [6], Khumaedi et al [7], Ansrory et al [8], Rahman et al [9], Ardinugroho and Handayani [10], Astuti et al [11], and Hidayatillah et al [12]. From this research, no one has discussed the relationship between lithology and landslides.…”