Feasibility study on construction of RCC gravity dam under special climatic conditions in Tibet

MATEC Web of Conferences Pub Date : 2023-01-01 DOI:10.1051/matecconf/202338001029

Ni Pu, Jingyu Wang, Weibin Zhong, Nan Zheng, Jinming Ren

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Abstract

According to the experience in the construction of water conservancy and hydropower projects in the Mainland, RCC dam construction has two main advantages: the rapid construction speed of roller compacted concrete can realize early power generation, and the price of fly ash is much lower than that of cement, which can reduce the project cost. Tibet has special geographical environment and climatic conditions, and generally has the characteristics of “high altitude, low pressure, low temperature, large temperature difference between day and night, and dry climate”. Taking the dam-building environment in central Tibet as an example, through investigation and research and analogy of similar projects, this paper analyzes the adaptability of construction of RCC gravity dams in Tibet from the aspects of geographical environment, climatic conditions, material properties, construction progress, and project cost. Adaptability to high altitudes. It provides a reference for choosing a safe, reliable, economical and reasonable dam type in the construction of water conservancy and hydropower projects. It provides reference for selecting safe, reliable, economical and reasonable dam types in water conservancy and hydropower engineering construction.

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西藏特殊气候条件下碾压混凝土重力坝建设可行性研究

根据内地水利水电工程的建设经验，碾压混凝土大坝建设主要有两个优势:碾压混凝土施工速度快，可实现早期发电，粉煤灰价格远低于水泥，可降低工程成本。西藏具有特殊的地理环境和气候条件，总体上具有“海拔高、气压低、气温低、昼夜温差大、气候干燥”的特点。以藏中地区筑坝环境为例，通过调查研究和类似工程的类比，从地理环境、气候条件、材料特性、施工进度、工程造价等方面分析了西藏地区碾压混凝土重力坝建设的适应性。对高海拔的适应性。为水利水电工程建设中选择安全、可靠、经济、合理的坝型提供参考。为水利水电工程建设中选择安全、可靠、经济、合理的坝型提供参考。

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来源期刊

MATEC Web of Conferences

自引率

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发文量

342

审稿时长

6 weeks

期刊介绍： MATEC Web of Conferences is an Open Access publication series dedicated to archiving conference proceedings dealing with all fundamental and applied research aspects related to Materials science, Engineering and Chemistry. All engineering disciplines are covered by the aims and scope of the journal: civil, naval, mechanical, chemical, and electrical engineering as well as nanotechnology and metrology. The journal concerns also all materials in regard to their physical-chemical characterization, implementation, resistance in their environment… Other subdisciples of chemistry, such as analytical chemistry, petrochemistry, organic chemistry…, and even pharmacology, are also welcome. MATEC Web of Conferences offers a wide range of services from the organization of the submission of conference proceedings to the worldwide dissemination of the conference papers. It provides an efficient archiving solution, ensuring maximum exposure and wide indexing of scientific conference proceedings. Proceedings are published under the scientific responsibility of the conference editors.