隧道施工突水致災構造及其分類
發(fā)布時間:2018-01-06 09:35
本文關鍵詞:隧道施工突水致災構造及其分類 出處:《現(xiàn)代隧道技術》2017年01期 論文類型:期刊論文
【摘要】:隧道施工期突水具有普遍性、突發(fā)性和災害嚴重性等特點,為隧道工程界所廣泛關注。文章基于以往隧道施工突水災害與引發(fā)突水災害的不良地質體之間的關系,總結提出了包括充水(泥水混合充填)巖溶、未膠結富水壓性斷層強烈擠壓破碎帶、未膠結富水張性斷層、地下向斜蓄水構造、富水順層錯動(節(jié)理密集發(fā)育巖體)破碎帶和充水廢棄礦巷等6種可能導致隧道施工突水災害發(fā)生的突水致災構造;根據突水致災構造構成、可能的隔水巖土盤類型和工程處理措施適宜性,提出了突水致災構造分類的三項原則,將突水致災構造劃分成完全充水體構造和裂隙空隙/孔隙含水體構造,并提出了相應工程處理措施。
[Abstract]:The water inrush during tunnel construction is universal, sudden and serious. Based on the relationship between the water inrush disaster of tunnel construction and the bad geological body which caused the water inrush disaster in the past, this paper summarizes and puts forward the karst which includes water filling (mixed filling with mud and water). The uncemented water-pressure faults are strongly crushed and broken, the uncemented water-rich and tensional faults are uncemented, and the underground syncline water storage structures. There are 6 kinds of water-inrush structures which may lead to water inrush disaster in tunnel construction, such as fracture zone and abandoned mine roadway with water filling in the fractured zone (joint-dense developed rock mass) in Fushuishun formation. According to the composition of water-inrush structure, the possible type of water-isolating rock and soil plate and the suitability of engineering treatment measures, three principles for classification of water-inrush disaster-causing structures are put forward. The structure caused by water inrush is divided into completely filled water structure and fissure void / pore containing water structure, and the corresponding engineering treatment measures are put forward.
【作者單位】: 中國鐵道科學研究院;中鐵西南科學研究院有限公司;
【基金】:國家重點基礎研究發(fā)展計劃項目(2013CB036000)
【分類號】:U455.4
【正文快照】: 1 m= 上升,使原本巖土盤厚度大于等于最小安全隔水巖土盤厚度的隔水巖土盤的厚度變?yōu)樾∮谛碌牡叵滤畤鷰r變形失穩(wěn)sァに、涌箯P⒂客荒、涌矢砂、,
本文編號:1387321
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