Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed
鑒于國內外的研究把重點放在大力發展工程樁的實驗室承載力監測方法與設備、如何使土方開
挖機械現代化及對周圍建築的臨測方法上,本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序,並得出了聲波層析成像技術是砼樁的動態質量檢測的有效手段,這對指導施有積極、現實意義;提出了綜合運用朗肯土壓力理論、基坑空間和時間效應影響理論來分析逆作法施工過程中基坑邊坡土體應力及應變的變化情況,指出粘土地區也應考慮時間效應,並且進一步分析了基坑邊坡土體的塑性區形成和發展,找出邊坡最不利的區域,以確定地下室土體的
挖掘的方式和順序,指出憑主觀臆斷與經驗來施工是不可取的;在分析、經較逆作法與大開
挖順作法的地下室結構體系受力情況及施工順序的不同,提出了節點處理技術;分析了逆作法施工期間樁的沉降變化原因及由此而產生的差異,並探討了解決的方法;本文還提出了環境振動對土體邊坡穩定產生影響的觀點,並分析了在環境振動影響下,土體的應力狀態及土休失穩破壞概率,並且還運用彈性力學知識和數學分析的方法定量地分析了地下混凝土墻受力狀態,指出了被監測墻體的最大應力、應變位置。
" mulan " is the largest tunnel - boring machine ever used in hong kong
木蘭號是香港歷來規模最大的隧道鉆
挖機。
Hard rock tunnel boring machine
巖石隧道鉆
挖機
Secretary for the treasury commissions " mulan " west rail s giant tunnel boring machine " mulan " was commissioned by the secretary for the treasury miss denise yue on 31 march
西鐵的巨型隧道鉆
挖機木蘭號於三月三十一日由庫務局局長俞宗怡女士啟動。
The railway tunnels along canton road and underneath the former marine police headquarters will be constructed by the bored tunnelling method to minimize impacts on the adjacent environment. other than the excavation works that need to be carried out within the works site near the canton road government offices for the new station and introducing the tunnel boring machine, the works that need to be carried out at the street level along canton road will be small in scale so as to minimize the impact on the environment in the neighbourhood
在廣東道沿路和前水警總部地底的鐵路隧道,會以鉆
挖隧道方式建造,除了在廣東道政府合署現址附近的工地內
挖開地面以便興建新車站及引進隧道鉆
挖機外,需要在廣東道路面進行的工程規模會很少,以便盡量減少對毗鄰環境的影響。
The spokesman said issues in relation to tunnel construction, including loss and contamination of ground water, subsidence and blow - out, will be addressed by way of the use of an earth pressure balance tunnel boring machine which has been proven to be very successful in the construction of one of the most difficult sections of the west rail, the tsing tsuen tunnel
九鐵發言人指出,透過使用土壓平衡隧道鉆挖機,可以解決各種建造隧道的問題,如地下水流失和污染、土地沉降及泥漿從地底湧出等。西鐵即採用了相同的鉆挖機完成其中一項艱鉅的工程