????¹????????²???????²????????³

(1???人???????????????????????人430070??2??????????????????????

?????266000??3??????й????????????????450052)

?  ????????????????????7^# ??λ?????????????????????????????????????????????????????????????????????λ?????????????????????????????????????????·?????????????????????????????????????????????????????????Щ??????????????????

??????????????????????????????????

?????????TV542+.5  ????????A

 ????????????2009??9???????

DEEP WATER REEF BLASTING DEMOLITION IN XIAMEN

ZHANGZHOU MERCHANTS BANK SEAPORT

TAOMing¹??ZHANG Yong-qing²??DUXin-jian²??WANG Ze-wu³

  (1??Shool of Resource and Environment Engineering??Wuhan University of Technology??

Wuhan 430070??China??2??The Beihai Coastal Defense of Qingdao Coastal Defense Construction

    Engineering Troop??Qingdao 266000??Shandong??China??

3??Zhengzhou Track Transportation Co??Ltd????Zhengzhou 450052??China)

ABSTRACT??The paper??regarding the blasting works on demolition of the reef of Xiamen Zhangzhou Mer-chants Bank 7^#berths??discussed the deep water blasting design and construction methods with the com-plex environmental conditions??It included the hole positioning??hole parameters??specific charge??chargeper hole??charge configuration and the choice and determine of delay initiation circuit??The authors alsosuggested some of key points regarding deep water drilling rock blasting which should be paid attention to so as to be consulted by similar projects??

KEY WORDS??Deep water reef demolishing??Blasting parameters??Charging structure??Delay detonating

1  ??????

?????7^#??λ????λ?????????????????????????????????????????????6^#??λ??????????????????????15m??????????й????????????????????????????????????????????绯????з绯?????????????f=8??13??????????????20.4??m??????????????????11m???????????????????18m???????7m??

2  ????λ

????λ????GPS?????????к?????????????У???????????к???????????л??????????λ?????λ??????????У????Σ??????ü????????ê???400m?????4??ê???????Σ????ê??1.5t???????????ê??ɡ???????λ??????????????ê?·????????????????λ??????????????????????????λ??λ??????λ?????????????????????С???????????λ??????λ?????????????У?????????????????????????

3 ??????????

3.1  ????????^??1??2??

?????????????????????????????????λ??????????21.6m??10m=216m²?????????????????????????????????????????÷???β??????????λ????4???????7???????????????????????????????棬???????????????????????????????????????????????????α??????????????????12m??????????Щ???????????????d=170??175mm???????n=3.1m????????b=2.5m????????L=2.5??3.0m??

????????????>6m?????????3m<???<6m??????0.5??1.0m?????<3m??????1.5??2.0m?????α?????????????10m?????????????????

3.2  ??????

?????????????????к???????????????????±?????????????^[3]??

q=q₁+q₂+q₃+q₄        (1)

??У?q₁??????????????????????????????2???????????????10??????q₁=(2??0.45)??(1+10??)??1.0kg??m³??q₂??????????????????q₂=0.01h₂??h₂????m??q₃=0.02h₃??h₃????????m??q₄??????????????????????????????????????????????????????????????????????飺q₄=0.03h₄??h₄???θ???m?????α????У?h₂?18m??h₃=0??h₄?12m???????????g?1.5kg??m3?????????????????????????顣

3.3  ???????????

???????????????黯???????????????????145 mm????γ????500mm??????1.30g??cm???????????????????????á?????????????????????????????????????????????^[4??5]??

Q=q??a??b??H                   (2)

??У?Q??????????kg??q???????^[3]??kg??m³??a????m??b????m??H?????m????????????????????????????

3.4  ???????

?????????????????0.5??1m????????????????5???(?????0.5m)???1?????壬??????????????1??3????????????6??8??????2?????壬???????????????1??4??3??4λ????????????9??????3?????????壬?????????????????????3?????????????????????????2????????????2????????????????????????20m???????ü??????????????????????????????????

3.5  ??????·

?????????????????????????????????????????С??????Ч????????????????????????±????????????????????С??????????????????????α????????λ??27????????????15?κ????????^[6??7]????????????????????淶???????????????г?????????????????????????????????????1??????????·??

?1??????·

Fig.1  Blasting network

4  ??±???Ч??????????????

4.1  ????Ч??

???????????????????С?????????????С?????????????????????????????????????????鱬????δ?????????κ???????????????????????????????????????????????

4.2??±?????????????

??????±?????????????????????????????????????????????????????????

(1)??±???????????????????????????????????ο??????±????????鹫???????????????????30m????????????????????????

(2)??±???????????ж??????????????????????????????????????????????????з???????????????????????????????Ч????

(3)??????????????迹???????????????????迹??С????????±?????????Σ????????????С??±???????Σ???????????У??????????????????????????????????????????????ò????????????????????????????????С????????????????????????С??????????

(4)??????±?????????????????????????????????????????????????????±???????С?????????????С?????

?ο??????

[1]??????.???????????????????[J].?????2005??22??1????83-84.

[2]??????????У??γ?Σ???.?????????[M].?人???????????磬2006.

[3]????????????.????????????????[J].?????2006??23(3):73-75.

[4]??????.????????繤?????[M].???????й???????????磬2003??148-151.

[5]??????????????????.????????????????????[J].????????1998??4(3):54-59.

[6]?????.??????????[M].????.?????????磬2005??52-54.

[7]?ι???.??????????????????????о??????[J].????????1999??5(3)??46-50.