铁道标准设计
鐵道標準設計
철도표준설계
Railway Standard Design
2015年
10期
103-107,108
,共6页
公路隧道%泥水盾构%膨胀土%泥水环流系统%改造
公路隧道%泥水盾構%膨脹土%泥水環流繫統%改造
공로수도%니수순구%팽창토%니수배류계통%개조
Highway tunnel%Slurry TBM%Expansive soil%Slurry circulation system%Modification
扬州瘦西湖隧道采用旧泥水盾构设备全断面穿越膨胀性黏土地层，施工过程中泥浆产量大、难以分离，并且容易引发黏土块黏附刀盘、堵塞排泥系统等问题，从而影响施工的正常进行。针对扬州瘦西湖隧道工程环流系统面临的难题，对盾构刀盘的刀具进行重新选型和配置，对冲刷系统和环流管路进行一系列改造，通过室内模拟实验揭示黏土块溶崩破碎规律，实现了黏土块的块状切削和泥浆减量化，防止了刀盘结饼、泥水管路堵塞，形成了全断面黏土地层高效环流及出渣技术，保证了工程的顺利实施，产生了极大的经济效益。
颺州瘦西湖隧道採用舊泥水盾構設備全斷麵穿越膨脹性黏土地層，施工過程中泥漿產量大、難以分離，併且容易引髮黏土塊黏附刀盤、堵塞排泥繫統等問題，從而影響施工的正常進行。針對颺州瘦西湖隧道工程環流繫統麵臨的難題，對盾構刀盤的刀具進行重新選型和配置，對遲刷繫統和環流管路進行一繫列改造，通過室內模擬實驗揭示黏土塊溶崩破碎規律，實現瞭黏土塊的塊狀切削和泥漿減量化，防止瞭刀盤結餅、泥水管路堵塞，形成瞭全斷麵黏土地層高效環流及齣渣技術，保證瞭工程的順利實施，產生瞭極大的經濟效益。
양주수서호수도채용구니수순구설비전단면천월팽창성점토지층，시공과정중니장산량대、난이분리，병차용역인발점토괴점부도반、도새배니계통등문제，종이영향시공적정상진행。침대양주수서호수도공정배류계통면림적난제，대순구도반적도구진행중신선형화배치，대충쇄계통화배류관로진행일계렬개조，통과실내모의실험게시점토괴용붕파쇄규률，실현료점토괴적괴상절삭화니장감양화，방지료도반결병、니수관로도새，형성료전단면점토지층고효배류급출사기술，보증료공정적순리실시，산생료겁대적경제효익。
Using old slurry TBM in whole section of clay geology at Yangzhou Shouxihu Tunnel produces a lot of slurry in construction and it is difficult to separate it, which is likely to cause clay adhesion on cutter and clogging of discharge system and to affect normal construction. With a view to those problems at Yangzhou Shouxihu Tunnel, cutter tools are reselected and configured and modifications on flushing and circulation system are made. With indoor simulation experiments, the law of clay collapse is revealed and block-shaped cutting is fulfilled and mud reduction is quantized to prevent clay-cake formation, slurry pipeline jam. As a result, high efficiency circulating slag in whole section of clay geology is realized to ensure smooth construction and great economic benefit.
