Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Method for Calculating the Reasonable Buried Depth of an Underwater Drilling and Blasting Tunnel in Consideration of Seepage in Rock Formations
Abstract of Descriptions The invention discloses a method for calculating the reasonable buried depth of an underwater drilling and blasting tunnel in consideration of seepage in rock formations, which includes the following steps: through geological drilling, the thickness of the silt layer or soft soil layer and the depth of the existing fissures on the surface layer of the bedrock are obtained. The depth of the existing fissures on the top of the tunnel structure and the soft soil overburden and the surface layer of the bedrock are calculated. The height of the water head and the maximum width of the tunnel arch waist are measured according to the water barrier and permeability coefficient of the rock formation, the rock solidity coefficient, and the safety margin, and the thickness of the safety protection layer considering the water barrier and permeability of the rock formation is calculated. According to the foundation coefficient and the minimum resistance line of the single most dangerous cartridge, the length of the water-conducting fissure in the loose circle of surrounding rock caused by drilling and blasting is calculated. The reasonable buried depth of the mining method tunnel is calculated. Under the premise of ensuring the safety of the covering layer on the top of the tunnel, the present invention makes the waterproofing and drainage of the mining method tunnel during construction no longer be one of the main factors affecting the construction progress of the tunnel, and can also greatly reduce the drainage cost during the tunnel operation. Drawings of Descriptions Water Surface Underwater _~~~~ _o__---'TpL f Bedrock - ------ The Bottom Line of the Depth of the -- - - HExisting Fissures on the Sufface Layer af 2 the Bedrock Mine Method Tunnel Figure 1
A Method for Calculating the Reasonable Buried Depth of an Underwater Drilling and Blasting Tunnel in Consideration of Seepage in Rock Formations
Abstract of Descriptions The invention discloses a method for calculating the reasonable buried depth of an underwater drilling and blasting tunnel in consideration of seepage in rock formations, which includes the following steps: through geological drilling, the thickness of the silt layer or soft soil layer and the depth of the existing fissures on the surface layer of the bedrock are obtained. The depth of the existing fissures on the top of the tunnel structure and the soft soil overburden and the surface layer of the bedrock are calculated. The height of the water head and the maximum width of the tunnel arch waist are measured according to the water barrier and permeability coefficient of the rock formation, the rock solidity coefficient, and the safety margin, and the thickness of the safety protection layer considering the water barrier and permeability of the rock formation is calculated. According to the foundation coefficient and the minimum resistance line of the single most dangerous cartridge, the length of the water-conducting fissure in the loose circle of surrounding rock caused by drilling and blasting is calculated. The reasonable buried depth of the mining method tunnel is calculated. Under the premise of ensuring the safety of the covering layer on the top of the tunnel, the present invention makes the waterproofing and drainage of the mining method tunnel during construction no longer be one of the main factors affecting the construction progress of the tunnel, and can also greatly reduce the drainage cost during the tunnel operation. Drawings of Descriptions Water Surface Underwater _~~~~ _o__---'TpL f Bedrock - ------ The Bottom Line of the Depth of the -- - - HExisting Fissures on the Sufface Layer af 2 the Bedrock Mine Method Tunnel Figure 1
A Method for Calculating the Reasonable Buried Depth of an Underwater Drilling and Blasting Tunnel in Consideration of Seepage in Rock Formations
HE WEIGUO (Autor:in) / FAN GUOGANG (Autor:in) / FEI MANLI (Autor:in) / TAN ZHONGSHENG (Autor:in) / CAO WEI (Autor:in)
10.06.2021
Patent
Elektronische Ressource
Englisch
IPC:
E21D
SHAFTS
,
Schächte
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
/
E21B
EARTH OR ROCK DRILLING
,
Erd- oder Gesteinsbohren
/
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
Blasting rock underwater without drilling
| Engineering Index Backfile | 1934
Method for calculating reasonable burial depth of subsea tunnel
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Analysis of an underwater tunnel with the consideration of seepage forces
| British Library Conference Proceedings | 1998
Reasonable overburden thickness for underwater shield tunnel
| British Library Online Contents | 2018
Analysis of Surrounding Rock Pressure of Deep Buried Tunnel considering the Influence of Seepage
| DOAJ | 2022