城市勘测
城市勘測
성시감측
URBAN GEOTECHNICAL INVESTIGATION & SURVEYING
2014年
2期
134-137
,共4页
小半径%大深度%隧道贯通测量%联系三角形定向%地下导线测量
小半徑%大深度%隧道貫通測量%聯繫三角形定嚮%地下導線測量
소반경%대심도%수도관통측량%련계삼각형정향%지하도선측량
small radius%deep%tunnel breaking through surveying%connection triangle orientation%underground trav-ersing
隧道贯通测量一直是地下隧道施工测量的难点与关键,小半径、大深度隧道的贯通测量更需采取适合工程特点的技术措施,本文依据贯通测量的工艺流程,分析了贯通测量的主要误差来源,并针对小半径、大深度隧道估算了关键工序的测量误差值,科学地提出了控制联系三角形定向和地下导线测量精度的措施,经工程实例进行验证,取得了较好效果。
隧道貫通測量一直是地下隧道施工測量的難點與關鍵,小半徑、大深度隧道的貫通測量更需採取適閤工程特點的技術措施,本文依據貫通測量的工藝流程,分析瞭貫通測量的主要誤差來源,併針對小半徑、大深度隧道估算瞭關鍵工序的測量誤差值,科學地提齣瞭控製聯繫三角形定嚮和地下導線測量精度的措施,經工程實例進行驗證,取得瞭較好效果。
수도관통측량일직시지하수도시공측량적난점여관건,소반경、대심도수도적관통측량경수채취괄합공정특점적기술조시,본문의거관통측량적공예류정,분석료관통측량적주요오차래원,병침대소반경、대심도수도고산료관건공서적측량오차치,과학지제출료공제련계삼각형정향화지하도선측량정도적조시,경공정실례진행험증,취득료교호효과。
Tunnel breaking through surveying is one of the difficult and crucial problems in underground tunnel con -struction measurement .The small radius and deep tunnel breaking through surveying needs technical measures which are more suitable for the project environment .According to the technology of the breaking through surveying ,this paper ana-lyzed the source of the measurement error of breaking through surveying ,and estimated error values of the key processes . A scientific error control method of connection triangle orientation and underground traversing has been proposed .The method has also been tested in practice ,and a better result has been obtained .