CAJ | 학술논문

川渝气区某天然气净化厂工程放空火炬塔架高、大、重,若采用传统的吊装工艺则工期长、成本高、风险大.为了经济、安全、快速地将放空火炬塔架吊装就位,通过对多种吊装方案的对比分析论证,最终确定采取"双机抬吊、单机溜尾"分段吊装、空中组对的吊装新工艺:主吊吊车选用1台300 t履带吊和1台260 t履带吊,溜尾吊车为1台65 t汽车吊,历时24 h一次性成功地将火炬塔架吊装就位.工程实践证明:该吊装工艺既确保了塔架的施工质量、降低了吊装风险,又极大地节约了吊装成本,缩短了吊装工期,对相关工程具有一定的借鉴意义.
천투기구모천연기정화엄공정방공화거탑가고、대、중,약채용전통적조장공예칙공기장、성본고、풍험대.위료경제、안전、쾌속지장방공화거탑가조장취위,통과대다충조장방안적대비분석론증,최종학정채취"쌍궤태조、단궤류미"분단조장、공중조대적조장신공예:주조조차선용1태300 t리대조화1태260 t리대조,류미조차위1태65 t기차조,력시24 h일차성성공지장화거탑가조장취위.공정실천증명:해조장공예기학보료탑가적시공질량、강저료조장풍험,우겁대지절약료조장성본,축단료조장공기,대상관공정구유일정적차감의의.
The venting and flare stack tower at the LG Natural Gas Treatment Plant is high, large and heavy. The application of traditional lifting techniques will result in longer construction period, higher costs and risks. To place the venting and flare stack tower in position in an economical, secure and speedy way, this paper analyzed several lifting schemes and made a comparison between them. Finally, the segment lifting process, so-called "double crane lifting and single crane tailing", and air assembly process were adopted. A 300-ton and a 260-ton crawler cranes were selected as the main hoisting cranes, whilst a 65-ton crane truck was selected as the tailing hoisting crane. The flare stack tower was successfully placed in position within 24 hours. The results show that the hoisting technique is capable of ensuring construction quality, reducing hoisting risks, greatly saving the lifting costs and reducing the project period. This technique has certain reference value to other relevant projects.