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A platform for research: civil engineering, architecture and urbanism
Karst cave section grouting reinforcement construction method based on karst cave underground river environment tunnel construction
The invention discloses a karst cave section grouting reinforcement construction method based on karst cave underground river environment tunnel construction. The method comprises the following stepsthat S1, a tunnel section A is subjected to excavating until the tunnel section A communicates with a karst cave; S2, an underground river is diverted to enable the underground river to not flow through the karst cave; S3, the karst cave is subjected to backfilling until backfilling is conducted to a tunnel foundation surface; S4, the cave wall of the karst cave is protected, and multiple anchor cables are evenly constructed on the cave wall; S5, the karst cave is subjected to full filling, and the anchor cables are connected with a backfilled body subjected to full filling; S6, the backfilledbody is subjected to excavating to form a tunnel section B communicating with the tunnel section A; S7, measuring and setting out are conducted at the bottom of the tunnel section B, and drilling isconducted according to a setting-out point; S8, a casing material is placed in a hole; S9, a sleeve valve pipe is constructed in the hole; and S10, segmented grouting is conducted upwards from the bottom of the hole. The method has the advantages of being stable and 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注浆加固施工方法，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：在隧道B段底部进行测量放样，按放样点进行钻孔；S8：在孔中放置套壳料；S9：在孔中施作袖阀管；S10：从孔底向上进行分段式注浆。具有稳定可靠、安全性高、能防止沉降的优点。
Karst cave section grouting reinforcement construction method based on karst cave underground river environment tunnel construction
The invention discloses a karst cave section grouting reinforcement construction method based on karst cave underground river environment tunnel construction. The method comprises the following stepsthat S1, a tunnel section A is subjected to excavating until the tunnel section A communicates with a karst cave; S2, an underground river is diverted to enable the underground river to not flow through the karst cave; S3, the karst cave is subjected to backfilling until backfilling is conducted to a tunnel foundation surface; S4, the cave wall of the karst cave is protected, and multiple anchor cables are evenly constructed on the cave wall; S5, the karst cave is subjected to full filling, and the anchor cables are connected with a backfilled body subjected to full filling; S6, the backfilledbody is subjected to excavating to form a tunnel section B communicating with the tunnel section A; S7, measuring and setting out are conducted at the bottom of the tunnel section B, and drilling isconducted according to a setting-out point; S8, a casing material is placed in a hole; S9, a sleeve valve pipe is constructed in the hole; and S10, segmented grouting is conducted upwards from the bottom of the hole. The method has the advantages of being stable and 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注浆加固施工方法，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：在隧道B段底部进行测量放样，按放样点进行钻孔；S8：在孔中放置套壳料；S9：在孔中施作袖阀管；S10：从孔底向上进行分段式注浆。具有稳定可靠、安全性高、能防止沉降的优点。
Karst cave section grouting reinforcement construction method based on karst cave underground river environment tunnel construction
基于溶洞暗河环境隧道施工的溶洞段注浆加固施工方法
CHEN BIN (author) / KUANG PENG (author) / ZHANG WANG (author) / JIA XIAOYU (author) / ZHOU TAO (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