南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
South-to-North Water Transfers and Water Science & Technology
2015年
5期
941-945
,共5页
张宝匀%么红超%汪洋%张威%贾常秀
張寶勻%麽紅超%汪洋%張威%賈常秀
장보균%요홍초%왕양%장위%가상수
可控震源浅层地震勘探%频率域电磁测深法%富水性%大型断裂带
可控震源淺層地震勘探%頻率域電磁測深法%富水性%大型斷裂帶
가공진원천층지진감탐%빈솔역전자측심법%부수성%대형단렬대
controlled-source shallow seismic method%frequency domain electromagnetic sounding method%water-rich condition%large fault zone
隧道穿越大型断裂地段,断层的富水性对隧道工程建设的安全性有较大影响。应用物探方法对大型断裂富水性进行勘探,将有效预防施工过程中出现突水等安全事故。以山西的古城井田隧道建设前期勘探为例,采用可控震源浅层地震勘探技术对断层的结构进行了分析、解释,准确掌握了隧道穿越地堑区域的地质构造、岩性;利用频率域电磁测深法调查了工作区内断层的充水、导水情况及二叠系砂岩水、奥陶系灰岩水的赋存情况、岩溶裂隙程度等;最后综合两种物探方法,分析得出断层的充水来源和导水性质。
隧道穿越大型斷裂地段,斷層的富水性對隧道工程建設的安全性有較大影響。應用物探方法對大型斷裂富水性進行勘探,將有效預防施工過程中齣現突水等安全事故。以山西的古城井田隧道建設前期勘探為例,採用可控震源淺層地震勘探技術對斷層的結構進行瞭分析、解釋,準確掌握瞭隧道穿越地塹區域的地質構造、巖性;利用頻率域電磁測深法調查瞭工作區內斷層的充水、導水情況及二疊繫砂巖水、奧陶繫灰巖水的賦存情況、巖溶裂隙程度等;最後綜閤兩種物探方法,分析得齣斷層的充水來源和導水性質。
수도천월대형단렬지단,단층적부수성대수도공정건설적안전성유교대영향。응용물탐방법대대형단렬부수성진행감탐,장유효예방시공과정중출현돌수등안전사고。이산서적고성정전수도건설전기감탐위례,채용가공진원천층지진감탐기술대단층적결구진행료분석、해석,준학장악료수도천월지참구역적지질구조、암성;이용빈솔역전자측심법조사료공작구내단층적충수、도수정황급이첩계사암수、오도계회암수적부존정황、암용렬극정도등;최후종합량충물탐방법,분석득출단층적충수래원화도수성질。
The tunnel passes through the large fault,and the water-rich conditions of the fault can have great impacts on the safe-ty of tunnel construction.In order to prevent the occurrence of water inrush during the construction,the water-rich conditions of large fault are investigated using the geophysical prospecting method.In this paper,the preliminary exploration of tunnel con-struction in the Gucheng mine of Shanxi Province was taken as an example.The fault structure was analyzed by the controlled-source shallow seismic technique,which can provide the geological structure and lithology of the area where the tunnel passes. The frequency domain electromagnetic sounding method was used to investigate the water-rich conditions and hydraulic conduc-tivity of the fault,the storage conditions of Permian sandstone water and Ordovician limestone water,and karst fracture condi-tions.The source for water-rich conditions and hydraulic properties of the fault were analyzed by the above two geophysical techniques.