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A platform for research: civil engineering, architecture and urbanism
Vertical shaft flood discharge tunnel body supporting and excavating method
The invention provides a shaft spillway tunnel body support excavation method which comprises the following steps: step 1, pre-designing shaft spillway tunnel body excavation layers, and dividing the shaft spillway tunnel body into an upper layer, a middle layer and a lower layer; the lower layer of the vertical shaft flood discharge tunnel body is a bottom plate protection layer; 2, the upper-layer hole body is divided into a middle section, a left side and a right side, the middle section of the upper-layer hole body is excavated firstly, and then the left side and the right side of the upper-layer hole body are excavated; then supporting construction is carried out on the excavated upper-layer hole body; step 3, excavating a middle-layer hole body; then supporting construction is conducted on the excavated middle-layer hole body; step 4, excavating a lower-layer hole body; and then supporting construction is carried out on the excavated lower-layer hole body. According to the design and excavation supporting method for the vertical shaft flood discharge tunnel body, the adaptive construction requirements of more different terrains are met.
本发明提出了一种竖井泄洪洞洞身支护开挖方法，包括以下步骤：步骤1：预先设计竖井泄洪洞洞身开挖分层，将竖井泄洪洞洞身划分为上中下三层；所述竖井泄洪洞洞身的下层为底板保护层；步骤2：将上层洞身划分为中段和左右两侧，先对上层洞身的中段进行开挖，然后再对上层洞身的左右两侧进行开挖；然后对挖好后的上层洞身进行支护施工；步骤3：对中层洞身进行开挖；然后对挖好后的中层洞身进行支护施工；步骤4：对下层洞身进行开挖；然后对挖好后的下层洞身进行支护施工。本发明通过上述设置给出一种竖井泄洪洞洞身的设计及开挖支护的方法，满足更多不同地形的适应性施工需求。
Vertical shaft flood discharge tunnel body supporting and excavating method
The invention provides a shaft spillway tunnel body support excavation method which comprises the following steps: step 1, pre-designing shaft spillway tunnel body excavation layers, and dividing the shaft spillway tunnel body into an upper layer, a middle layer and a lower layer; the lower layer of the vertical shaft flood discharge tunnel body is a bottom plate protection layer; 2, the upper-layer hole body is divided into a middle section, a left side and a right side, the middle section of the upper-layer hole body is excavated firstly, and then the left side and the right side of the upper-layer hole body are excavated; then supporting construction is carried out on the excavated upper-layer hole body; step 3, excavating a middle-layer hole body; then supporting construction is conducted on the excavated middle-layer hole body; step 4, excavating a lower-layer hole body; and then supporting construction is carried out on the excavated lower-layer hole body. According to the design and excavation supporting method for the vertical shaft flood discharge tunnel body, the adaptive construction requirements of more different terrains are met.
本发明提出了一种竖井泄洪洞洞身支护开挖方法，包括以下步骤：步骤1：预先设计竖井泄洪洞洞身开挖分层，将竖井泄洪洞洞身划分为上中下三层；所述竖井泄洪洞洞身的下层为底板保护层；步骤2：将上层洞身划分为中段和左右两侧，先对上层洞身的中段进行开挖，然后再对上层洞身的左右两侧进行开挖；然后对挖好后的上层洞身进行支护施工；步骤3：对中层洞身进行开挖；然后对挖好后的中层洞身进行支护施工；步骤4：对下层洞身进行开挖；然后对挖好后的下层洞身进行支护施工。本发明通过上述设置给出一种竖井泄洪洞洞身的设计及开挖支护的方法，满足更多不同地形的适应性施工需求。
Vertical shaft flood discharge tunnel body supporting and excavating method
一种竖井泄洪洞洞身支护开挖方法
MA TIANCHANG (author) / HUANG YAOWEN (author) / QIAO SHUXUN (author) / ZHAO PAN (author) / RAO SHENGBIN (author) / SU CHUNSHENG (author) / HE SHIMEI (author) / ZHAO HEMING (author) / LYU CHUNLEI (author) / HE KE (author)
2022-04-12
Patent
Electronic Resource
Chinese
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