【摘要】：20世紀是地上的時代,21世紀是地下的時代。隨著人民生活水平的提高,新型技術的革新,地下空間開發(fā)與利用早已進入了工程師的視野。水力發(fā)電依舊是發(fā)展中國家電力來源的重要方式,水力發(fā)電廠結構配置里不可或缺的包括深埋地下空間、洞室等。將過剩電力利用空氣壓縮機把空氣介質壓縮成一定壓強的氣體儲存于洞室中是目前發(fā)電廠設計的重要組成部分。因此,地下儲氣構造物是壓氣儲能(CAES)電站選址的決定因素�；谏盥竦叵聝δ芏词以谒Πl(fā)電廠中的重要性,本文選擇了不同埋深、不同截面形狀、不同截面尺寸、不同間距的洞室進行靜力學計算。同時,地震作用下深埋儲氣構筑物的力學性能是值得工程師關注和研究的。因此,本文選擇不同埋深、不同截面形狀、不同截面尺寸、不同間距的洞室利用汶川臥龍站測取的前20s地震波進行動力學計算。本文主要研究成果主要有以下幾點:(1)靜力條件下,洞室埋深對洞室力學特性影響較大,適宜埋深為300m,洞室截面尺寸對洞室力學特性影響較小,洞室截面形狀對洞室力學特性影響較大,圓形洞室優(yōu)于馬蹄形洞室,洞室間距大于三倍洞徑時對洞室力學特性影響小。(2)動力作用下,洞室埋深對洞室動力學特性影響較大,適宜埋深為300m,洞室截面尺寸對洞室動力學特性影響較小,洞室截面形狀對洞室動力學特性影響較大,圓形洞室優(yōu)于馬蹄形洞室,洞室間距大于三倍洞徑時對洞室動力學特性影響小,洞室間距大于六倍洞徑時可忽略洞室間距的影響。(3)基于模糊數(shù)學分析方法,圓形洞室穩(wěn)定性優(yōu)于馬蹄形洞室。
[Abstract]:The 20th century is the age of the earth and the 21st century is the age of the underground. With the improvement of people's living standard and the innovation of new technology, the development and utilization of underground space has already entered the field of vision of engineers. Hydropower is still an important source of power in developing countries. It is an important part of power plant design to compress the air medium into a certain pressure gas and store it in the chamber by using the air compressor. Therefore, the underground gas storage structure is the decisive factor for the location of the pressurized gas storage (CAES) power station. Based on the importance of deep buried underground energy storage caverns in hydropower plants, the static calculation of caverns with different buried depths, different cross-section shapes, different cross-section sizes and different spacing is carried out in this paper. At the same time, the mechanical properties of deep buried gas storage structures under earthquake are worthy of attention and study by engineers. Therefore, the caverns with different buried depth, different section shape, different section size and different spacing are selected to calculate the dynamics of the caverns by using the first 20s seismic wave measured by Wulong station in Wenchuan. The main results of this paper are as follows: (1) under the static condition, the depth of the cavity has a great influence on the mechanical properties of the cavern, and the suitable depth is 300m, and the section size of the cavern has little effect on the mechanical properties of the cavern. The shape of section has a great influence on the mechanical properties of the cavern. The circular cavity is superior to the horseshoe cavity. When the space between the cavities is larger than three times the diameter of the cavity, the influence on the mechanical properties of the cavern is small. (2) under the dynamic action, The depth of the cavity has a great influence on the dynamic characteristics of the cavern, the suitable depth is 300m, the section size of the cavity has little effect on the dynamic characteristics of the cavern, the shape of the section of the cavern has a great influence on the dynamic characteristics of the cavern, and the circular cavern is superior to the horseshoe cavern. The influence of cavern spacing greater than three times diameter has little effect on the dynamic characteristics of cavities, while the influence of cavities spacing greater than six times diameter can be neglected. (3) based on fuzzy mathematical analysis, the stability of circular cavities is better than that of horseshoe caverns.
【學位授予單位】：湖北工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TV31

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本文編號：2401712