A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rechecking method for falling of shield tunnel prefabricated track slab
The invention relates to the technical field of subway construction and discloses a shield tunnel prefabricated track slab falling rechecking method which comprises the following steps of performing three-dimensional measurement scanning on an inner wall of a tunnel; generating a three-dimensional graph of the inner wall of the tunnel so as to obtain coordinates of each point of the inner wall of the tunnel; inputting the coordinate of the midpoint O of the top rail connecting line of any two steel rails and the vertical distance h1 from the top rail connecting line to the bottom of the prefabricated track plate, and calculating to obtain the coordinate of the center C of the bottom of the prefabricated track plate; a left intersection point A1 and a right intersection point A2 of the plane where the plate bottom of the prefabricated track plate is located and the inner wall of the tunnel being inquired according to the three-dimensional scanning result; the plate bottom width L of the prefabricated track plate being compared with the length of a connecting line of the A1C and the A2C, and whether the prefabricated track plate can be normally hoisted and dropped or not being judged. The method is advantaged in that whether each position of the existing tunnel has the condition of laying the prefabricated track plate or not can be quickly and efficiently rechecked, the process is simple, construction efficiency is improved, and material preparation during track laying is facilitated.
本发明涉及地铁施工技术领域，公开了一种盾构隧道预制轨道板落板的复核方法，包括以下步骤：对隧道内壁进行三维测量扫描；生成隧道内壁的三维图形，以此得到隧道内壁的各点位坐标；输入任意一处两根钢轨的顶轨连线中点O点的坐标和顶轨连线至预制轨道板的板底的垂向距离h1，计算得到预制轨道板的板底中心C点坐标；通过三维扫描的结果查询得到预制轨道板的板底所在的平面与隧道内壁的左交点A1和右交点A2；对比预制轨道板的板底宽度L与A1C、A2C连线的长度，判断预制轨道板可否正常吊装落板；可以快速高效地复核既有隧道的各个位置是否具备铺设预制轨道板的条件，工艺简单，增加了施工效率，便于铺轨时的物资备料。
Rechecking method for falling of shield tunnel prefabricated track slab
The invention relates to the technical field of subway construction and discloses a shield tunnel prefabricated track slab falling rechecking method which comprises the following steps of performing three-dimensional measurement scanning on an inner wall of a tunnel; generating a three-dimensional graph of the inner wall of the tunnel so as to obtain coordinates of each point of the inner wall of the tunnel; inputting the coordinate of the midpoint O of the top rail connecting line of any two steel rails and the vertical distance h1 from the top rail connecting line to the bottom of the prefabricated track plate, and calculating to obtain the coordinate of the center C of the bottom of the prefabricated track plate; a left intersection point A1 and a right intersection point A2 of the plane where the plate bottom of the prefabricated track plate is located and the inner wall of the tunnel being inquired according to the three-dimensional scanning result; the plate bottom width L of the prefabricated track plate being compared with the length of a connecting line of the A1C and the A2C, and whether the prefabricated track plate can be normally hoisted and dropped or not being judged. The method is advantaged in that whether each position of the existing tunnel has the condition of laying the prefabricated track plate or not can be quickly and efficiently rechecked, the process is simple, construction efficiency is improved, and material preparation during track laying is facilitated.
本发明涉及地铁施工技术领域，公开了一种盾构隧道预制轨道板落板的复核方法，包括以下步骤：对隧道内壁进行三维测量扫描；生成隧道内壁的三维图形，以此得到隧道内壁的各点位坐标；输入任意一处两根钢轨的顶轨连线中点O点的坐标和顶轨连线至预制轨道板的板底的垂向距离h1，计算得到预制轨道板的板底中心C点坐标；通过三维扫描的结果查询得到预制轨道板的板底所在的平面与隧道内壁的左交点A1和右交点A2；对比预制轨道板的板底宽度L与A1C、A2C连线的长度，判断预制轨道板可否正常吊装落板；可以快速高效地复核既有隧道的各个位置是否具备铺设预制轨道板的条件，工艺简单，增加了施工效率，便于铺轨时的物资备料。
Rechecking method for falling of shield tunnel prefabricated track slab
盾构隧道预制轨道板落板的复核方法
LIU WENWU (author) / SHI HAI'OU (author) / LUO XINWEI (author) / HE LIGONG (author) / WU JIA (author) / WANG ZHONGLIN (author) / YUAN JIANG (author) / LIU TANGHUI (author) / LI PING (author) / PAN PENG (author)
2021-12-03
Patent
Electronic Resource
Chinese
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