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A platform for research: civil engineering, architecture and urbanism
Segmented construction and tunnel entering method for large-bias-pressure tunnel pipe shed
The invention provides a method for segmented construction and tunnel entering of a large-bias-pressure tunnel pipe shed. The method for segmented construction and tunnel entering of the large-bias-pressure tunnel pipe shed comprises the following steps that (1) construction preparation is carried out, wherein surveying, lofting and surface cleaning are carried out; 2) A section surface cover arch operation: mounting I-shaped steel and a guide pipe, and pouring concrete; (3) construction of M + 1 to N # pipe sheds: drilling, pipe feeding and grouting; (4) first-stage exposed protection construction: mounting I-shaped steel and reinforcing meshes, constructing a foot-lock pipe shed, and pouring concrete; (5) B-section surface cover arch operation: mounting I-shaped steel and a guide pipe, and pouring concrete; (6) 1-M # pipe shed construction: drilling, pipe feeding and grouting are carried out; and (7) second-stage dark protection construction is conducted. The large-bias-pressure tunnel pipe shed segmented construction and hole entering method has the advantages that the advance pipe shed construction is completed in a less-excavation or zero-excavation mode, the mountain slope toe is subjected to back-pressure backfill reinforcement, and it is ensured that the tunnel enters the hole safely.
本发明提供一种大偏压隧道管棚分段施工进洞的方法。所述大偏压隧道管棚分段施工进洞的方法包括以下步骤：1)施工准备：进行测量放样、清表；2)A段面套拱作业：工字钢及导向管安装、混凝土浇筑；3)M+1至N#管棚施工：钻孔、送管及注浆；4)一阶段明防护工施工：工字钢及钢筋网片安装、锁脚管棚施做、混凝土浇筑；5)B段面套拱作业：工字钢及导向管安装、混凝土浇筑；6)1至M#管棚施工：钻孔、送管及注浆；7)二阶段暗防护工施工。本发明提供的大偏压隧道管棚分段施工进洞的方法具有较少对斜坡体开挖，少开挖或者零开挖的方式完成超前管棚施工，对山体坡脚反压回填加固，确保隧道安全进洞的优点。
Segmented construction and tunnel entering method for large-bias-pressure tunnel pipe shed
The invention provides a method for segmented construction and tunnel entering of a large-bias-pressure tunnel pipe shed. The method for segmented construction and tunnel entering of the large-bias-pressure tunnel pipe shed comprises the following steps that (1) construction preparation is carried out, wherein surveying, lofting and surface cleaning are carried out; 2) A section surface cover arch operation: mounting I-shaped steel and a guide pipe, and pouring concrete; (3) construction of M + 1 to N # pipe sheds: drilling, pipe feeding and grouting; (4) first-stage exposed protection construction: mounting I-shaped steel and reinforcing meshes, constructing a foot-lock pipe shed, and pouring concrete; (5) B-section surface cover arch operation: mounting I-shaped steel and a guide pipe, and pouring concrete; (6) 1-M # pipe shed construction: drilling, pipe feeding and grouting are carried out; and (7) second-stage dark protection construction is conducted. The large-bias-pressure tunnel pipe shed segmented construction and hole entering method has the advantages that the advance pipe shed construction is completed in a less-excavation or zero-excavation mode, the mountain slope toe is subjected to back-pressure backfill reinforcement, and it is ensured that the tunnel enters the hole safely.
本发明提供一种大偏压隧道管棚分段施工进洞的方法。所述大偏压隧道管棚分段施工进洞的方法包括以下步骤：1)施工准备：进行测量放样、清表；2)A段面套拱作业：工字钢及导向管安装、混凝土浇筑；3)M+1至N#管棚施工：钻孔、送管及注浆；4)一阶段明防护工施工：工字钢及钢筋网片安装、锁脚管棚施做、混凝土浇筑；5)B段面套拱作业：工字钢及导向管安装、混凝土浇筑；6)1至M#管棚施工：钻孔、送管及注浆；7)二阶段暗防护工施工。本发明提供的大偏压隧道管棚分段施工进洞的方法具有较少对斜坡体开挖，少开挖或者零开挖的方式完成超前管棚施工，对山体坡脚反压回填加固，确保隧道安全进洞的优点。
Segmented construction and tunnel entering method for large-bias-pressure tunnel pipe shed
一种大偏压隧道管棚分段施工进洞的方法
CHO YONG-HO (author) / GUO XIN (author) / WANG YANG (author) / LI WEN (author) / YANG JUN (author) / JIANG HONG (author) / ZHANG JIAN (author) / CHI YUNPENG (author) / XIE DEJUN (author) / QIAN YUNSONG (author)
2023-11-07
Patent
Electronic Resource
Chinese
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