A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Karst cave section anchor backing plate construction method based on karst cave and underground river environment tunnel construction
The invention discloses a karst cave section anchor backing plate construction method based on karst cave and underground river environment tunnel construction. The construction method comprises the following steps that S1, a tunnel section A is excavated to communicate with a karst cave; S2, the 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 evenly constructed on the cave wall; S5, hole drilling construction is conducted at the positions, at the two sides of the anchor cables, of the cave wall, and screw rods are connected with holes; S6, grouting is carried out on the holes to fix the screw rods; S6, an anchor backing plate is lifted to an operation platform through a winch; and S7, the anchor backing plate is lifted through a jack, so that the anchor backing plate, the anchor cables and the screw rods on the two sides form alignment connection, and nuts and the screw rods are connected to form locking. The construction method has the advantagesof 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垫板施工方法，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：在锚索两侧的洞壁进行钻孔施工，将螺杆与孔洞连接；S6：对孔洞进行灌浆使螺杆固定；S6：利用卷扬机将锚垫板提升至作业平台；S7：采用千斤顶将锚垫板提升，使锚垫板与锚索以及两侧的螺杆形成对位连接，利用螺母与螺杆连接形成锁紧。具有稳定可靠、安全性高、能防止沉降的优点。
Karst cave section anchor backing plate construction method based on karst cave and underground river environment tunnel construction
The invention discloses a karst cave section anchor backing plate construction method based on karst cave and underground river environment tunnel construction. The construction method comprises the following steps that S1, a tunnel section A is excavated to communicate with a karst cave; S2, the 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 evenly constructed on the cave wall; S5, hole drilling construction is conducted at the positions, at the two sides of the anchor cables, of the cave wall, and screw rods are connected with holes; S6, grouting is carried out on the holes to fix the screw rods; S6, an anchor backing plate is lifted to an operation platform through a winch; and S7, the anchor backing plate is lifted through a jack, so that the anchor backing plate, the anchor cables and the screw rods on the two sides form alignment connection, and nuts and the screw rods are connected to form locking. The construction method has the advantagesof 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垫板施工方法，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：在锚索两侧的洞壁进行钻孔施工，将螺杆与孔洞连接；S6：对孔洞进行灌浆使螺杆固定；S6：利用卷扬机将锚垫板提升至作业平台；S7：采用千斤顶将锚垫板提升，使锚垫板与锚索以及两侧的螺杆形成对位连接，利用螺母与螺杆连接形成锁紧。具有稳定可靠、安全性高、能防止沉降的优点。
Karst cave section anchor backing plate 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垫板施工方法
CHEN BIN (author) / ZHOU HAO (author) / HE AIHUA (author) / XIA ZHENRONG (author) / XIAO CHENGYI (author) / YAN ZHENWEI (author) / HUANG GUANG (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