Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of karst tunnel foundation piled raft structure
The invention relates to the technical field of tunnel construction, and provides a karst tunnel base piled raft structure construction method, a tunnel base adopts a piled raft structure, and the construction method comprises the steps of constructing a pile foundation structure, constructing a raft plate structure and the like. The pile foundations on the two sides of the tunnel base are constructed through the left-right framing construction technology, the circulation time of all the working procedures can be effectively shortened, the pedestrian trestle is used for passing after the pile foundation on one side of the tunnel base is constructed, normal construction operation of other working procedures is facilitated, and therefore the actual construction efficiency is improved, and the construction cost is reduced. The construction period is shortened; meanwhile, the rotary drilling rig is adopted for drilling, the drilling efficiency of each drilling rig can reach 13 m/day, and the construction efficiency can be further improved under the condition of the same cost compared with a traditional percussion drill for construction; and on the other hand, in the construction process, the vibration frequency of the rotary drilling rig is low, disturbance to structures such as a primary support in the tunnel is small, and the probability of inducing safety accidents can be effectively reduced.
本发明涉及隧道施工技术领域，提供了一种岩溶隧道基底桩筏结构施工方法，隧道基底采用桩筏结构，该施工方法包括施作桩基结构以及施作筏板结构等步骤。本发明通过采用左右分幅的施工工艺分别对隧道基底两侧的桩基进行施工，能够有效减少各工序的循环时间，并在隧道基底一侧的桩基施工完成后利用人行栈桥通行，有利于其他工序正常施工作业，从而提高实际的施工效率，缩减施工周期；同时，通过采用旋挖钻机来钻孔，每台钻机的钻孔效率可达到13m/天，在相同成本条件下相较于传统的采用冲击钻施工来说，能够进一步提高施工效率；另一方面，在施工过程中旋挖钻机的振动频率低，对隧道内的初期支护等结构的扰动较小，能够有效降低诱发安全事故的概率。
Construction method of karst tunnel foundation piled raft structure
The invention relates to the technical field of tunnel construction, and provides a karst tunnel base piled raft structure construction method, a tunnel base adopts a piled raft structure, and the construction method comprises the steps of constructing a pile foundation structure, constructing a raft plate structure and the like. The pile foundations on the two sides of the tunnel base are constructed through the left-right framing construction technology, the circulation time of all the working procedures can be effectively shortened, the pedestrian trestle is used for passing after the pile foundation on one side of the tunnel base is constructed, normal construction operation of other working procedures is facilitated, and therefore the actual construction efficiency is improved, and the construction cost is reduced. The construction period is shortened; meanwhile, the rotary drilling rig is adopted for drilling, the drilling efficiency of each drilling rig can reach 13 m/day, and the construction efficiency can be further improved under the condition of the same cost compared with a traditional percussion drill for construction; and on the other hand, in the construction process, the vibration frequency of the rotary drilling rig is low, disturbance to structures such as a primary support in the tunnel is small, and the probability of inducing safety accidents can be effectively reduced.
本发明涉及隧道施工技术领域，提供了一种岩溶隧道基底桩筏结构施工方法，隧道基底采用桩筏结构，该施工方法包括施作桩基结构以及施作筏板结构等步骤。本发明通过采用左右分幅的施工工艺分别对隧道基底两侧的桩基进行施工，能够有效减少各工序的循环时间，并在隧道基底一侧的桩基施工完成后利用人行栈桥通行，有利于其他工序正常施工作业，从而提高实际的施工效率，缩减施工周期；同时，通过采用旋挖钻机来钻孔，每台钻机的钻孔效率可达到13m/天，在相同成本条件下相较于传统的采用冲击钻施工来说，能够进一步提高施工效率；另一方面，在施工过程中旋挖钻机的振动频率低，对隧道内的初期支护等结构的扰动较小，能够有效降低诱发安全事故的概率。
Construction method of karst tunnel foundation piled raft structure
一种岩溶隧道基底桩筏结构施工方法
HOU JIANWEN (Autor:in) / ZHONG CHANGGUI (Autor:in) / XIE WENQING (Autor:in) / DENG BAOHUA (Autor:in) / CHEN YAO (Autor:in) / YANG LONGWEI (Autor:in) / GAN HONGLIN (Autor:in) / LIU LIN (Autor:in) / XIAN WEI (Autor:in)
15.03.2022
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Tunnel foundation piled raft structure construction method based on railway engineering
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| TIBKAT | 1976
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