Sustainable Design of an Artificial Lake in Jafer Basin Based on Gravity Flow

Abstract

Jordan is a dry country which badly needs water bodies. This work proposes a design of a sustainable artificial lake in Jafer basin (JB). The design involves excavating a tunnel to connect Gulf of Aqaba (GoA) and JB, and building a pumping station at the end of the tunnel. The tunnel will have a downslope gradient to allow gravity flow of seawater from GoA to JB. Once the water arrives underneath JB, a series of pumps along an inclined shaft uplift the water into the basin creating an artificial Lake, with total water volume of 2,000 Million Cubic Meters (MCM). The time required to fill up the basin is three years. The tunnel diameter is 3 meters and the depth of the tunnel and the shaft is 1000 m. 2% of the lake surface will be covered by Photovoltaic (PV) panels to produce electricity for pumping and to reduce evaporation rate. The total investment cost is 10.1 B$ (Billion Dollar) spent over three years, after that, all the pumping power needed to counteract evaporation is provided by PV panels. Once completed, the project is expected to pay back by encouraging human settlement, tourism, agriculture and industry.

Prediction method of shield tunneling parameters in pebble stratum formed by weathered granite and quartzite

“…Therefore, how to accurately predict and control the tunneling parameters has always been the research focus in the field of shield tunnel construction technology (Pan et al, 2022). At present, many scholars have studied the variation laws and theoretical calculations of cutter head torque, shield thrust, grouting pressure, tunneling speed and other parameters under different geological conditions during EPB shield tunneling, and established mathematical and physical models to predict tunneling parameters according to Hooke's law (Jie et al, 2017;Wei et al, 2017;Yang et al, 2017;Zhao et al, 2017;Boukhari, 2020;Cao et al, 2020;Gao et al, 2020;Al-Habahbeh, 2022;Lu et al, 2022;Lyu et al, 2022). Although these models can reflect the analytical relationship between tunneling parameters, shield tunneling is a complex and changing process, and the stratum it crosses is actually a non-uniform and discontinuous non-linear elastomer.…”

Restorasi Lanskap Situ Pengarengan Depok Untuk Mendukung Ekosistem Perairan Berkelanjutan

“…Kegiatan keberlanjutan danau/situ dilakukan melalui pengerukan sedimen, meningkatkan kandungan oksigen dalam air melalui pengurangan pencemar yang masuk, biomanipulasi dan mengurangi terjadinya ledakan plankton (Tammeorg, et al, 2022). Restorasi desain lanskap untuk keberlanjutan danau/situ dilakukan dengan memperhatikan aliran air dan tinggi muka air ke arah daratan (Al-Habahbeh, 2021).…”