国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
1期
55-59
,共5页
铁路桥梁%水害%八三式轻型军用墩%单元化预拼%顶推横移
鐵路橋樑%水害%八三式輕型軍用墩%單元化預拼%頂推橫移
철로교량%수해%팔삼식경형군용돈%단원화예병%정추횡이
railway bridge%flood damage%type-83 light-duty military pier%unit pre-assembling%thrusting and lateral sliding
因遭遇强降雨,造成老清河大桥2号桥墩倾斜、4号墩基础冲刷严重,线路轨向最大偏差68mm,致使桃威铁路行车中断。分析了水害原因,制订了临时抢通技术方案：先进行2号墩、4号墩基础抛石加固,然后在2号墩两侧搭设临时钢墩进行加固,对既有桥墩部分卸载,满足临时通车要求后,再拆除导致河流改道的拦水坝。重点阐述了八三式铁路轻型军用墩拼架过程中采取的单元化预拼、墩外拼组顶推横移就位技术。该技术的科学应用大大降低了施工难度、规避了施工风险、提高了抢架效率,缩短了抢架进程,为今后铁路桥梁水害应急处理积累了经验。
因遭遇彊降雨,造成老清河大橋2號橋墩傾斜、4號墩基礎遲刷嚴重,線路軌嚮最大偏差68mm,緻使桃威鐵路行車中斷。分析瞭水害原因,製訂瞭臨時搶通技術方案：先進行2號墩、4號墩基礎拋石加固,然後在2號墩兩側搭設臨時鋼墩進行加固,對既有橋墩部分卸載,滿足臨時通車要求後,再拆除導緻河流改道的攔水壩。重點闡述瞭八三式鐵路輕型軍用墩拼架過程中採取的單元化預拼、墩外拼組頂推橫移就位技術。該技術的科學應用大大降低瞭施工難度、規避瞭施工風險、提高瞭搶架效率,縮短瞭搶架進程,為今後鐵路橋樑水害應急處理積纍瞭經驗。
인조우강강우,조성로청하대교2호교돈경사、4호돈기출충쇄엄중,선로궤향최대편차68mm,치사도위철로행차중단。분석료수해원인,제정료림시창통기술방안：선진행2호돈、4호돈기출포석가고,연후재2호돈량측탑설림시강돈진행가고,대기유교돈부분사재,만족림시통차요구후,재탁제도치하류개도적란수패。중점천술료팔삼식철로경형군용돈병가과정중채취적단원화예병、돈외병조정추횡이취위기술。해기술적과학응용대대강저료시공난도、규피료시공풍험、제고료창가효솔,축단료창가진정,위금후철로교량수해응급처리적루료경험。
As a result of heavy rainfall,Pier 2 tilted and the foundation of Pier 4 of the Laoqinghe River Bridge was scoured seriously,with the maximum deviation of the track line reaching up to 68 mm,which resulted in the interruption of the operation of the Taocun-Weihai Railway.Upon the basis of analyzing the causes of the flood damage,a temporary technical scheme of rush-repair is worked out in the paper.According to the scheme,Pier 2 and the foundation of Pier 4 are first reinforced with riprap,and then a temporary steel pier is erected on both sides of the Pier 2 to reinforce it.With the existing bridge piers partially unloaded,the temporary traffic requirements are ensured,posterior to which the river-diverting dam is removed.Stress is laid on the introduction of the techniques of unit pre-assembling adopted in the process of assembling type-83 military railway light-duty piers,assembling outside the pier,and thrusting and lateral-sliding the frame into place.The scientific application of the technique can greatly reduce the difficulty in construction,avoid the construction risks,improve the rush-repairing efficiency of the rush-repaired frame,and shorten the time for the erection of the rush-repaired frame,which helps us to accumulate experience for the the rush-repair of flood-stricken railway bridges in the future.
