The changing nature of groundwater control for temporary works

Abstract

Groundwater control for temporary works uses a range of methods to allow below-ground construction in stable and workably dry conditions. Over the past 30 years this has had to change due to increased environmental regulation of groundwater and shorter programme timescales for deeper and larger projects. This paper discusses how traditional groundwater control strategies are evolving in response to these challenges and the increasing focus on reducing carbon dioxide emissions in construction. Consideration is also given to the range of soil permeability suitable for the application of dewatering techniques, and the related issue of sources of risk and uncertainty in design and procedures for managing these.

Kajian Dewatering Sebagai Metode Darurat Pengairan Saluran Sekunder di Gumbasa, Sulawesi Tengah

“…Pada metode open pumping, pekerjaan galian dilakukan pada kondisi tanah apa adanya dan ditambah 1 galian kecil yang berfungsi sebagai parit tampungan sementara, lalu air dibiarkan mengalir ke parit tersebut untuk kemudian dipompa (Salim et al, 2022). Metode cut off adalah metode dewatering yang menitikberatkan pencegahan masuknya air ke dalam galian dengan cara memotong aliran menggunakan sheet pile atau alat semisalnya (Powers et al, 2007;Roberts et al, 2022).…”