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Karst cave section anchor rod construction method based on karst cave and underground river environment tunnel construction
The invention discloses a karst cave section anchor rod construction method based on karst cave and underground river environment tunnel construction. The karst cave section anchor rod construction method comprises the following steps that S1, a tunnel section A is excavated to be communicated with a karst cave; S2, an underground river is redirected, so that the underground river does not flow through the karst cave; S3, the karst cave is backfilled until the karst cave is backfilled to a tunnel foundation surface; S4, a cave wall of the karst cave is protected, and a plurality of anchor cables are uniformly constructed on the cave wall; S5, the karst cave is fully filled, and the anchor cables are connected with a fully filled backfill body; S6, the backfill body is excavated to form a tunnel section B communicated with the tunnel section A; S7, rock surface treatment is conducted on the tunnel section B, and steel fiber net layer spraying is conducted; S8, anchor hole construction is conducted on the tunnel section B; S9, an anchor rod is installed in an anchor hole; and S10, the anchor hole is grouted, so that the anchor rod is fixed to a rock surface. The karst cave section anchor rod construction method has the advantages of being stable, reliable, high in safety and capable of preventing sedimentation.
一种基于溶洞暗河环境隧道施工的溶洞段锚杆施工方法，包括以下步骤：S1：将隧道A段开挖至连通溶洞；S2：对暗河进行改道，使暗河不流经溶洞；S3：对溶洞进行回填，直至回填至隧道基础面；S4：对溶洞洞壁进行防护处理；并在洞壁上均匀施作多根锚索；S5：对溶洞进行满填，并使锚索与满填后的回填体连接；S6：对回填体进行开挖形成与隧道A段连通的隧道B段；S7：对隧道B段进行岩面处理并进行钢纤维网层喷射；S8：对隧道B段进行锚孔施工；S9：将锚杆安装至锚孔内；S10：对锚孔进行灌浆使锚杆与岩面固定。具有稳定可靠、安全性高、能防止沉降的优点。
Karst cave section anchor rod construction method based on karst cave and underground river environment tunnel construction
The invention discloses a karst cave section anchor rod construction method based on karst cave and underground river environment tunnel construction. The karst cave section anchor rod construction method comprises the following steps that S1, a tunnel section A is excavated to be communicated with a karst cave; S2, an underground river is redirected, so that the underground river does not flow through the karst cave; S3, the karst cave is backfilled until the karst cave is backfilled to a tunnel foundation surface; S4, a cave wall of the karst cave is protected, and a plurality of anchor cables are uniformly constructed on the cave wall; S5, the karst cave is fully filled, and the anchor cables are connected with a fully filled backfill body; S6, the backfill body is excavated to form a tunnel section B communicated with the tunnel section A; S7, rock surface treatment is conducted on the tunnel section B, and steel fiber net layer spraying is conducted; S8, anchor hole construction is conducted on the tunnel section B; S9, an anchor rod is installed in an anchor hole; and S10, the anchor hole is grouted, so that the anchor rod is fixed to a rock surface. The karst cave section anchor rod construction method has the advantages of being stable, reliable, high in safety and capable of preventing sedimentation.
一种基于溶洞暗河环境隧道施工的溶洞段锚杆施工方法，包括以下步骤：S1：将隧道A段开挖至连通溶洞；S2：对暗河进行改道，使暗河不流经溶洞；S3：对溶洞进行回填，直至回填至隧道基础面；S4：对溶洞洞壁进行防护处理；并在洞壁上均匀施作多根锚索；S5：对溶洞进行满填，并使锚索与满填后的回填体连接；S6：对回填体进行开挖形成与隧道A段连通的隧道B段；S7：对隧道B段进行岩面处理并进行钢纤维网层喷射；S8：对隧道B段进行锚孔施工；S9：将锚杆安装至锚孔内；S10：对锚孔进行灌浆使锚杆与岩面固定。具有稳定可靠、安全性高、能防止沉降的优点。
Karst cave section anchor rod construction method based on karst cave and underground river environment tunnel construction
一种基于溶洞暗河环境隧道施工的溶洞段锚杆施工方法
XIAO CHENGYI (author) / MIAO XIANQIANG (author) / YANG YONG (author) / WANG JUN (author) / HUANG GUANG (author) / ZHOU HAO (author)
2020-11-03
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2020