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A platform for research: civil engineering, architecture and urbanism
Pipe jacking construction process
The invention discloses a pipe jacking construction process which is used for pipe jacking construction penetrating through a large embankment. The process comprises the following steps: S1, before construction, soil body reinforcement is respectively carried out on a water intake jacking pipe and a drainage jacking pipe which are designed with construction on the large embankment; S2, before large embankment construction, matrix type monitoring points are arranged at an embankment body and the slope corners of the large embankment; S3, jacking construction is performed, the water intake jacking pipe and the drainage jacking pipe are respectively jacked through a tool head, the initial jacking speed is 8-12 mm/min, the normal jacking speed is 20-30 mm/min, and the amount of unearthed soilat the large embankment after soil body reinforcement is 102%-110%; S4, deviation rectification measurement and construction are performed, in the jacking construction in the step S3, once deviation measurement is carried out every time the jacking distance is smaller than 1m, and if the deviation measurement result is larger than the deviation standard, deviation rectification construction is carried out. In the pipe jacking construction process, the stability of the periphery of the large embankment can be ensured in construction, and the stability of the embankment body is improved.
本发明公开了一种顶管施工工艺，用于穿过大提的顶管施工，包括以下步骤：S1施工前，对大提上，设计有施工的取水顶管和排水顶管处分别进行土体加固；S2大提施工前，在大堤的堤身以及坡角处，分别设置矩阵式的监测点；S3顶进施工：通过工具头分别进行取水顶管和排水顶管的顶进，初始顶进速度为8‑12mm/min，正常顶进速度为20‑30mm/min，且进行土体加固后的大提位置，其出土量为102％‑110％；S4纠偏测量及施工：在步骤S3顶进施工中，每顶进小于1m的距离时，进行一次偏差测量，如偏差测量结果大于偏差标准，则进行纠偏施工。本发明中，施工中能够确保大堤外周的安稳，提高堤身的稳定性。
Pipe jacking construction process
The invention discloses a pipe jacking construction process which is used for pipe jacking construction penetrating through a large embankment. The process comprises the following steps: S1, before construction, soil body reinforcement is respectively carried out on a water intake jacking pipe and a drainage jacking pipe which are designed with construction on the large embankment; S2, before large embankment construction, matrix type monitoring points are arranged at an embankment body and the slope corners of the large embankment; S3, jacking construction is performed, the water intake jacking pipe and the drainage jacking pipe are respectively jacked through a tool head, the initial jacking speed is 8-12 mm/min, the normal jacking speed is 20-30 mm/min, and the amount of unearthed soilat the large embankment after soil body reinforcement is 102%-110%; S4, deviation rectification measurement and construction are performed, in the jacking construction in the step S3, once deviation measurement is carried out every time the jacking distance is smaller than 1m, and if the deviation measurement result is larger than the deviation standard, deviation rectification construction is carried out. In the pipe jacking construction process, the stability of the periphery of the large embankment can be ensured in construction, and the stability of the embankment body is improved.
本发明公开了一种顶管施工工艺，用于穿过大提的顶管施工，包括以下步骤：S1施工前，对大提上，设计有施工的取水顶管和排水顶管处分别进行土体加固；S2大提施工前，在大堤的堤身以及坡角处，分别设置矩阵式的监测点；S3顶进施工：通过工具头分别进行取水顶管和排水顶管的顶进，初始顶进速度为8‑12mm/min，正常顶进速度为20‑30mm/min，且进行土体加固后的大提位置，其出土量为102％‑110％；S4纠偏测量及施工：在步骤S3顶进施工中，每顶进小于1m的距离时，进行一次偏差测量，如偏差测量结果大于偏差标准，则进行纠偏施工。本发明中，施工中能够确保大堤外周的安稳，提高堤身的稳定性。
Pipe jacking construction process
一种顶管施工工艺
ZHAO HUI (author) / ZHANG ZHIYU (author) / YU WENJIN (author) / LIU QUANGONG (author) / CHEN XILING (author) / JIANG BIZHEN (author)
2020-10-09
Patent
Electronic Resource
Chinese
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