|
|
|
Leilei Zhao, Zhendong Cui, Ruidong Peng, Tao Wei, Longcan Wang and Dongxu Liu
Reused roadways are increasingly adopted in fully mechanized coalfaces with large mining heights because of the ventilation and gas drainage problems. However, the forced mechanism and grouting control technology of the reused roadway was seldom studied....
ver más
|
|
|
|
|
|
Dejana Ðordevic, Eniko Anna Tamás, Ljubi?a Mihajlovic, Csaba Abonyi, Aleksandar Vujanovic and Béla Kalocsa
The subject of this study is an approximately 300 km long Middle Danube River reach that spans from river kilometer (rkm) 1581 in Hungary to (rkm) 1255 in Serbia. The observed drying of floodplains in Hungary some thirty years ago initiated the hydrologi...
ver más
|
|
|
|
|
|
Ming Lei, Jin Chang, Jianqing Jiang and Rui Zhang
The aim of this paper is to clarify the negative pressure distribution in drainage structures of soft foundations reinforced by vacuum preloading. The focus of this study was an actual engineering project, the Beijing?Shanghai high-speed railway; four di...
ver más
|
|
|
|
|
|
El-Sayed A. Badr, Rady T. Tawfik and Mortada S. Alomran
Irrigation water quality is important to sustain agricultural productivity. The primary irrigation water sources in Al-Ahsa Oasis, KSA, are groundwater wells, mixed with treated wastewater and agricultural drainage. This study sought to evaluate irrigati...
ver más
|
|
|
|
|
|
Xiaomei Kou, Dianchao Han, Yongxiang Cao, Haixing Shang, Houfeng Li, Xin Zhang and Min Yang
Mining of mineral resources exposes various minerals to oxidizing environments, especially sulfide minerals, which are decomposed by water after oxidation and make the water in the mine area acidic. Acid mine drainage (AMD) from mining can pollute surrou...
ver más
|
|
|