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yuan, a n increase of 17.5%; l ocal governme nt general budget revenue of 500 milli on Yuan, ... Pai nting , model cult ure create s new Ma Church communit y, creati ng Lake sce nic spot cult ure educati on base, re ceived high eval uation from provi ncial a nd m uni cipal discipli ne Inspection Commissi on, the people's daily spe cial report. Consta ntly prom ote indepe nde nt Commission against
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根據(jù)公路隧道二次襯砌的現(xiàn)場情況,制作了足尺的襯砌模型,并在模型中設(shè)置了模擬隧道二次襯砌背后空洞、回填不密實(shí)等典型缺陷工況,采用地質(zhì)雷達(dá)進(jìn)行檢測試驗(yàn)。試驗(yàn)結(jié)果顯示:采用不同頻率的雷達(dá)天線時(shí),異常體的測試分析結(jié)果有較明顯的差異,并表現(xiàn)出了各自的優(yōu)缺點(diǎn);同時(shí)結(jié)合天線選用、探測方式選擇、時(shí)長參數(shù)設(shè)定、信號位置調(diào)整及脈沖響應(yīng)濾波設(shè)置等條件提出了相應(yīng)的處理建議,可供使用地質(zhì)雷達(dá)法檢測隧道二次襯砌的工程技術(shù)人員參考。