本文選題：壓氣儲能 + 硬巖洞室�。� 參考：《巖土力學》2014年05期

【摘要】：地下儲氣構造物是壓氣儲能(CAES)電站選址的決定因素,其中人工開挖的硬巖洞室因其受地質構造限制小、適應范圍廣而備受關注。針對壓氣儲能地下洞室方案選型和密閉性要求,選擇了典型的洞室埋深(200、300、500 m),考慮不同的洞室形式(隧道式和大罐式)和洞室尺寸,采用Abaqus有限元軟件計算出高內氣壓下壓氣儲能洞室圍巖的塑性區(qū)和洞周應變。通過分析開挖后和充氣后兩個工況下圍巖的受力和變形特征,獲得合適的洞室形式。當圍巖級別為Ⅱ級、內壓為10 MPa的情況下,埋深為300 m的圓形洞室和大罐式洞室穩(wěn)定性較好,該埋深下6 m直徑圓形洞室最大洞周應變?yōu)?.55410??,容積為5 310 m大罐式洞室最大洞周應變?yōu)?.54410??,以上值都在一般橡膠類高分子密封材料的正常工作范圍內,這為密封材料在不同溫度下的延伸率和耐久性研究提供了基礎數據。
[Abstract]:Underground gas storage structure is the decisive factor in the location of pressurized gas storage energy storage (CAESs) power station. Among them, the hard cave chamber which is excavated by hand has attracted much attention because of its small limitation of geological structure and wide scope of adaptation. In view of the selection of underground chamber for pressurized gas energy storage and the requirements for its sealing, the typical underground chamber depth of 200300500 mm2 is selected, and different types of cavern (tunnel type and large tank type) and the size of cavern are considered. Abaqus finite element software is used to calculate the plastic zone and surrounding strain of the surrounding rock of the gas storage chamber under high pressure. By analyzing the stress and deformation characteristics of surrounding rock after excavation and aeration, a suitable cavity form is obtained. When the surrounding rock grade is grade 鈪，

本文編號：2004862