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A platform for research: civil engineering, architecture and urbanism
Construction method of hydropower station traffic tunnels
The invention belongs to the technical field of infrastructure construction engineering, and discloses a construction method of hydropower station traffic tunnels. The method comprises the following steps of step 1, formulating a ventilation, smoke exhaust and dust removal scheme during tunnel excavation; step 2, formulating a tunnel drilling and blasting scheme, adopting a double-wedge-shaped cutting and full-section excavation construction method for excavation construction of the III-level surrounding rock cave section, and excavating the IV-level and V-level surrounding rock deep-buried cave sections in an anchor rod supporting and step method mode; and step 3, after the tunnel is excavated, firstly lining an inverted arch, then filling the inverted arch, and carrying out pavement baselayer concrete construction, and after primary support convergence, completing arch wall concrete construction through one-time lining by means of a lining formwork trolley. According to the method disclosed by the invention, the working face of each cavern can be scientifically utilized, time is strived for, construction period arrangement is reasonable, workers of all types of work can be in continuous construction, specialized construction is achieved, reasonable lap joint among all types of work is realized, invested construction resources are relatively balanced, organization work of resource supply is facilitated, and construction efficiency is improved.
本发明属于基础设施建设工程技术领域，公开一种水电站交通洞群施工方法，包括：步骤1：制定隧道开挖时通风、排烟和除尘方案；步骤2：制定隧道钻孔爆破方案，对于Ⅲ级围岩洞段开挖施工采用双楔形掏槽，全断面开挖的施工方法，对于Ⅳ、Ⅴ级围岩深埋洞段采用锚杆支护及台阶法的方式开挖；步骤3：当隧道开挖完成后，先衬砌仰拱，再进行仰拱填充并进行路面基层混凝土施工，初期支护收敛后，利用衬砌摸板台车一次性衬砌完成拱墙混凝土施工。本发明所述方法能够科学地利用各个洞室工作面，争取时间，工期安排合理，各工种人员能够连续施工，实现专业化施工，实现各作业工种之间的合理搭接，投入的施工资源比较均衡，有利于资源供应的组织工作，提高施工效率。
Construction method of hydropower station traffic tunnels
The invention belongs to the technical field of infrastructure construction engineering, and discloses a construction method of hydropower station traffic tunnels. The method comprises the following steps of step 1, formulating a ventilation, smoke exhaust and dust removal scheme during tunnel excavation; step 2, formulating a tunnel drilling and blasting scheme, adopting a double-wedge-shaped cutting and full-section excavation construction method for excavation construction of the III-level surrounding rock cave section, and excavating the IV-level and V-level surrounding rock deep-buried cave sections in an anchor rod supporting and step method mode; and step 3, after the tunnel is excavated, firstly lining an inverted arch, then filling the inverted arch, and carrying out pavement baselayer concrete construction, and after primary support convergence, completing arch wall concrete construction through one-time lining by means of a lining formwork trolley. According to the method disclosed by the invention, the working face of each cavern can be scientifically utilized, time is strived for, construction period arrangement is reasonable, workers of all types of work can be in continuous construction, specialized construction is achieved, reasonable lap joint among all types of work is realized, invested construction resources are relatively balanced, organization work of resource supply is facilitated, and construction efficiency is improved.
本发明属于基础设施建设工程技术领域，公开一种水电站交通洞群施工方法，包括：步骤1：制定隧道开挖时通风、排烟和除尘方案；步骤2：制定隧道钻孔爆破方案，对于Ⅲ级围岩洞段开挖施工采用双楔形掏槽，全断面开挖的施工方法，对于Ⅳ、Ⅴ级围岩深埋洞段采用锚杆支护及台阶法的方式开挖；步骤3：当隧道开挖完成后，先衬砌仰拱，再进行仰拱填充并进行路面基层混凝土施工，初期支护收敛后，利用衬砌摸板台车一次性衬砌完成拱墙混凝土施工。本发明所述方法能够科学地利用各个洞室工作面，争取时间，工期安排合理，各工种人员能够连续施工，实现专业化施工，实现各作业工种之间的合理搭接，投入的施工资源比较均衡，有利于资源供应的组织工作，提高施工效率。
Construction method of hydropower station traffic tunnels
水电站交通洞群施工方法
JING TONG (author) / XIAO LIANG (author) / TAI ERDONG (author) / QI SHUANGQUAN (author) / HE HUIHUI (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
E21F
Sicherheitsvorrichtungen, Förderung, Auffüllen oder Bergversatz, Rettungswesen, Bewetterung oder Entwässerung in oder von Gruben oder Tunnels
,
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
/
C04B
Kalk
,
LIME
/
F04D
Strömungsarbeitsmaschinen
,
NON-POSITIVE-DISPLACEMENT PUMPS
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