Preface

Abstract

The 2020 4th International Conference on Water Conservancy, Hydropower and Building Engineering (WCHBE 2020) was planned to be held in Lanzhou, China during July 3-5, 2020. WCHBE 2020 was hosted by AEIC Academic Exchange Information Center. Due to the impact of COVID-19, many communities from all over the world were under strict health measures and strict travel restrictions, and participants of 2020 4th International Conference on Water Conservancy, Hydropower and Building Engineering (WCHBE 2020) also meet with the difficulty of travel restrictions. For communities, if our conference was not held in a virtual form, it would add huge work on traffic system, Exit-Entry system, medical system, etc., which is quite a serious issue, to actively respond to the call of the government, to strengthen the protection work, to effectively reduce people gathering and prevent COVID-19, considering the situation that most of the authors would like to publish their articles and make academic communications as scheduled, WCHBE 2020 was held on-line instead of postponing the conference. It was a challenge, not only to the organizers, but also to the participants who were delivering their speeches using videoconference tools, under different time zones.The conference is an international conference for the presentation of technological advances and research results in the fields of water conservancy, hydropower and building engineering. The conference will bring together about 97 leading researchers, engineers and scientists in the domain of interest from China, Italy, Malaysia, Mexico and Thailand. The conference model was divided into two parts, including keynote presentations and online discussion. In the first part, each keynote speakers were allocated 30 minutes to present their talks via Zoom. After the keynote talks, all participants joined in a WeChat communication group to discuss more about the talks and presentations. We are honored to have invited three distinguished experts as our keynote speakers. Prof. Hengjia Zhang, Gansu Agricultural University, China, was the first one to perform a thought-provoking speech on Optimization of Limited Irrigation Schedules for Spring Maize (Zea mays) in a Desert Oasis Region. He also was the Conference Chair who mainly devoted to the teaching and research work of the efficient use of agricultural water and soil resources. Secondly, Prof. Shaohua Marko Hsu from Feng Chia University held his speech on Using Porous Material for Riverbank and Riverbed Protection. Thirdly, Prof. Ahmad Safuan Bin A. Rashid from Universiti Teknologi Malaysia, Malaysia talked about Application of UAV-TLS Photogrammetry in Determination of Rock Slope Stability. Their insightful speeches had triggered heated discussion in the second session of the conference. The WeChat discussion lasted for about 30 minutes. Every participant praised this conference for disseminating useful and insightful knowledge.We are glad to share with you that we still received lots of submissions from the conference during this special period. Hence, we selected a bunch of high-quality papers and compiled them into the proceedings after rigorously reviewed them. These papers feature following two categories but are not limited to: Civil, Architectural Engineering, Water conservancy and hydropower, and other related fields. All the papers have been through rigorous review and process to meet the requirements of International publication standard.We would like to express our gratitude to everyone involved. Without this dedicated cooperation, it would be impossible to hold the conference at such a high level and prepare the WCHBE 2020 proceedings.Committee of WCHBE 2020The Committee member is available in this pdf.