, km K K

Transcript

1 Sichuan W ater Pow er V o l. 24 Supp lem ent D ec ( ) : 35 m kn 3 m GBgT A STM A M Pa K K : : TV 223 TU 457 : B (2005) km K K K K m (2) YXZ (1) (0 360 ) (3) : : 45

2 30 cm : 1g3 = % : m PV C 1. 5 m 1 m ( : 5 m ) ( ( M Pa ) 4 5 h ( ) 8 h (4) (5) 20 cm ( 6) ( 40 cm ) 3. 3 ) 0. 6 m (3) 100 (1) (4) GB gt % 3 (2) : 46

3 3. 4 : ( ) 6 5 m in PE 3 : : 3g1 PH YCW (1) 1g10 1g5 5 ( kn ) 10% ( ) 50% 80% 5 cm 100% 110% ( ) 8 cm (2) 10 m in 10% 5% h 10% M Pa m in : (1) QM (1) : QM QM (2) ZB m in 8 10 cm ( 53 ) 47

4 : 5 2 (19732). ( ) ( 44 ) βν βο ( ) 3 (19812) (19802). ( ) ( 47 ) (2) : (3) : (4) : 3% 5 (19752) ( ) ( 50 ) (19702) (19702). ( ) 53

5 Sichuan W ater Pow er V o l. 24 Supp lem ent D ec ABSTRACT Application of Con struction Technology in Fault Fracture Zones in Dap ingz i H ighway Tunnel for J inp ing Hydropower Station ZHON G Y i J IAN Yun (T he E leventh D etachm ent of H ydropow er Construction Co rp s of Ch inese A rm ed Po lice Chengdu Sichuan Ch ina) Abstract: D ap ingzi h ighw ay tunnel is located in sound po tash granite covered by debriṡ T he overburden of the tunnel is relatively th in and the b ias is greaṫ In en trance zone slope su rface is covered w ith th ick deluvial co lluvial alluvial deb ris resu lting in difficu lt tunneling condition. T he paper gives detail descrip tion on app lication of con struction techno logy in fault fracture zones in tunneling of D ap ingzi tunnel entrance section including grouting w ith sm all ducts in advance and suppo rting w ith large p ipe shelf in advance. B rief introduction on excavation m ethod and initial suppo rt are p resented. Key words: tunnel sm all duct large p ipe shelf suppo rting m ethod J inp ing H ydropow er Station Con struction of Anchorage Cable at Slope in Yangfanggou Section of Access Road for J inp ing I and II Hydropower Station s L IN Y in Po lice Chengdu Sichuan Ch ina) Abstract: T he excavated slope in Yangfanggou section of access road fo r J inp ing I and II hydropow er stations is 35m h igh w ith poo r geo logical conditions mo st parts are compo sed of h igh ly w eathered rock s intercalated w ith large amount of sedim ent and fractures are developed. T herefo re it is designed to stabilize the excavated slope w ith 1000kN p re2 stressed ancho rage cables and 3m long bo lts. Pure cem ent grout is injected fo r the ancho rage cables. A ncho rage cables are m ade of 1860M Pa h igh strength and low relaxation steel strands w h ich confo rm to GB gt and A STM A Standards of p re2stressed concrete steel strands. Construction techniques fo r ancho rage cables in K K sections are described in th is papeṙ Key words: J inp ing H ydropow er Station road ancho rage cab le con struction Quality Con trol for Dam Im perv ious Core M ater ialm ix ing at Sh iquanhe Hydropower Project WAN G J in2song D EN G Sheng2rong Po lice Chengdu Sichuan Ch ina) Abstract: D am co re impervious m aterial quality is critical to dam quality of Sh iquanhe hydropow er station. W ith m any p roduction experim ents an ideal p roduction schem e is summ arized. Q ualified dam co re impervious m aterial is p roduced by contro lling four key p rocedures during m aterial m ixing. Key words: dam co re im perviou s m aterial w ater con ten t m ix p ropo rtion s un ifo rm m ix ing fou r p rocedu res Sh iquanhe H ydropow er Station 3-D F in ite Elem en t Ana lysis for Pre- stressed Concrete Aqueduct Structure YE Peng2yue 1 L i Yuan 2 ZHAN G Chao2feng 3 (1. T he E leventh D etachm ent of H ydropow er Construction Co rp s of Ch inese A rm ed Po lice Chengdu Sichuan Ch ina 2. T he Seventh D etachm ent of H ydropow er Construction Co rp s of Ch inese A rm ed Po lice X inyu J iangxi Ch ina 3. E rtan H ydropow er D evelopm en t Co rpo ration Chengdu Sichuan Ch ina) Abstract: A queduct bridge fo r the Caohe R iver is m ain structure in m iddle line p ro ject of south2no rth w ater diversion. L oad2bearing state is analyzed by 32D finite elem ent m ethod fo r p re2stressed concrete aqueduct structure. T ype size and pattern of p re2stressed bars fo r the aqueduct structu re are ju stified and its stress and defo rm ation s m eet standard requirem entṡ Key words: p re2stressed concrete aqueduct 32D fin ite elem en t analysis Caohe R iver sou th2no rth w ater diversion Optim ization of Cofferdam Schem e at L ot C II for Fuj in Hydropower Project J IAN G H ui2m ing (T he E leventh D etachm ent of H ydropow er Construction Co rp s of Ch inese A rm ed Po lice Chengdu Sichuan Ch ina) Abstract: Con struction diversion and flow con tro l is generally a lum p 2sum item in con struction con tract docum en ts of w ater con servancy and hydropow er p ro jects. U nder sam e quality and schedu le targets the op tim ized schem e is the construction schem e w ith low est construction co sṫ T h is paper p resents op tim ized cofferdam construction during dry season. Key words: Fu jin dam hydropow er p ro ject cofferdam schem e op tim ization Frost-resistance Concrete and Con struction Techn ique M ea sures in W in ter WAN G Zhen2quan (T he E leventh D etachm ent of H ydropow er Construction Co rp s of Ch inese A rm ed Po lice Chengdu Sichuan Ch ina) Abstract: In th is paper reasons fo r concrete deterio ration by fro sting in w inter are analyzed and som e fro st2resisting m easures are taken to p revent concrete from fro st deterio ration resulting in p roperty change and failure. Key words: fro st2resistance concrete fro st2resistance theo ry engineering app lication con struction in w in ter Cla im s in Project Con struction FEN G Yu SHUA I Zh i2xing Po lice Chengdu Sichuan Ch ina) Abstract: C laim is the righ t of a party of a contract fo r compensation of lo sses w h ich the party incurred due to default of the o ther party of the contract during perfo rm ance of the contract. D uring construction of a p ro ject claim s m ay occur in various areas including no t fulfilling o r inco rrectly fulfilling the contract obligations of a party instruction changes design changes the p ro ject environm ent changes contradictions of the expo sed geo logic conditions w ith tho se expected in design state law changes inflation etc.. U sually construction claim s are co stgtim e compensations required by the contracto r because of extra w o rk o r lo sses incurred by the contracto ṙ Key words: con tract perfo rm ance claim reason claim type claim p rogram data co llection treatm en t m ethod 120