1、 c I | :0451- 0712(2001)08- 0110- 03 m s | :U414.103 D S M :B r K F k q T赵维国( = 5 + g 137400)K 1 : C T K F k q a z 1 m K Z E b 9 S e 4 K r E b T L l , r K F k q T V k 4 a k q T a k q ! a V N ? k q , T l b4 | X B k q V l | , k q V V n 1 b k , a b| k q b k N 6 , 1mm/minM q F , F k , k q ,: c H K v ,V
2、u k q = | V “ c b K R (2) T 9 :R= P/F (2)T :R k q F ,MPa;P k q H K v ,N;F k q s ,mm2b N1 k q B F ( , T “ V V 2? ,5 r , (3) T 9 9 F k q nullN:nullN= N2- N1 (3)T : nullN 9 F k q ; N1 “ H k q ;N2 “ 9 k q b 9 F k q - + k q B 9 ( ,i B Q _ “ Cv, P Cv S = , k T b5 k “ ( k R- (4) T 1p :R-Rd/(1- ZnullCv) (4)
3、T : Rd k q F ,MPa;Cv k T “ ( l 9 ),%; Znull S s V q 7 M “ ,%b aB ) : q 95%, Znull= 1.645; : q 90%, Znull=1.282b6 j / + (1)h 1 , 1 s 3 F x k H ,A r B ,7 O H W 3h, P 3 F x? s h b 5 , k q ! 3 V 3 F x n 7 b 1 s , 5 / Y v,V 7 P “ Cv 9 vb(2) 1 , ? k q ? A r L ( L K v = 1 p )M B b(3) q 1 ( F C 1h = k q , V
4、 1h T l by C H W 1 p * 45min,7 V 1h C X 8 3 , | Y qi111i2001 M 8 u S : r K F k q T k q , P k L b r s N K , 9 y k q b(4) q ! ! 1 aR ! L 150mm150mm k q H ,R 1000kN $ Q O , 5 q 4 b H q H K z 1000kN ? k q b(5) k 1 !k q , # H | k = C a / V p l , 3 , / B Q P b7 r K F k q T V i , 1 X S Q r a , k q T V B ,
5、Y 5 1 ,S z r K F k q , z 1 b I D :1 k ? (JTJ 057-94).2 _ S (JTJ 071- 98).3 / ? S (JTJ 034- 2000).Makingof UnconfinedCompressiveSampleof SoilStabilizedwithInorganicBindingMaterialsZhao Weiguo(Xingan LeagueHighway Administration of InnerMongolia, Ulanhot 137400, China)Abstract: Making the unconfined c
6、ompressive sample on site is an important and the most directmethodto evaluate thequality of roadbase courseandsubbase. It is also themost successful methodforthe quality supervisors to control the mixedquality of thebasecoursebinding materials. Accordingto thepractice, this paper introduces the sel
7、ectionof test model, making of sample, maintaining of sampleandevaluationof strengthduring themaking of theunconfined compressivesampleof soil stabilizedwith theinorganicbinding materialsKey words: Soil stabilized with inorganic binding materials; Unconfined compressive sample;Makingv : Y2001年7月28日,国内单孔净跨最大的公路隧道贵州凯里大阁山隧道经过一年多的紧张施工,胜利贯通。大阁山公路隧道是凯里市的重点工程,穿越位于市区繁华地段的大阁山,全长496m,设计为单孔双向四车道,开挖跨度达22m,是目前国内跨度最大的公路隧道。它的建成,为改善凯里市交通状况,带动经济和社会的发展都将起到极为重要的作用。承担施工任务的中铁五局集团一公司自2000年4月开工以来,采取短开挖、弱爆破、强支护、紧衬砌的施工方法,双孔侧壁导坑掘进,格棚钢拱架、喷混凝土作初期支护,严格按照ISO9001标准进行施工,确保了进度和质量。i112i 2001 M 8
