A Grass Drainage Structure Applicable to Inverted Tunnels
An artesian drainage and tunnel technology, used in drainage, safety devices, mining equipment, etc., can solve the problems of high water pump maintenance ratio, high operation cost, hidden safety hazards, etc., to reduce equipment investment and operation and maintenance costs, and have broad application prospects. Effect
Active Publication Date: 2018-07-03
POWERCHINA HUADONG ENG COPORATION LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] During the excavation of inverted slope tunnels, groundwater is an unavoidable problem. The tunnel section with relatively developed groundwater usually has the characteristics of large water inflow and stable flow. However, the above-mentioned measures have disadvantages such as large investment in equipment, high operating costs, the need to arrange on-duty personnel to switch on and off the water pump regularly, and a high proportion of water pump maintenance. Big security risk
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] Such as figure 1 As shown, the present embodiment is applicable to the inverted tunnel. The inverted tunnel 9 is distributed with water outlet points with relatively stable water output. The tunnel is provided with a sump 7 in the tunnel. In this example, a main drainage pipe 1 is laid along the inverted tunnel 9. , the water intake end of the main drainage pipe stretches into the sump 7 in the cave, and the drainage end of the main drainage pipe passes through the tunnel and extends downward until the end stretches into the sedimentation tank 8 outside the cave. The water intake end of the main drainage pipe 1 is equipped with a main drainage pipe valve 2 near the sump 7 in the cave, and at the same time, a water delivery pipe valve 3 is installed above the main drainage pipe valve 2, and the water delivery pipe valve 3 passes through the water delivery pipe joint in turn. 4 and the water delivery hose 5 are connected with the submersible pump 6 at the bottom of the su...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a free drainage structure suitable for an adverse slope tunnel. The free drainage structure aims to reduce equipment input and operation and maintenance cost, avoid influences from emergency situations such as a power failure and be capable of achieving continuous and stable drainage. According to the technical scheme, the free drainage structure is provided with the adverse slope tunnel, water points with stable water yields are located in the tunnel, an in-tunnel water collecting basin is arranged in the tunnel, a main drainage pipe is laid along the adverse slope tunnel, the water intaking end of the main drainage pipe stretches into the in-tunnel water collecting basin, and the drainage end of the main drainage pipe penetrates out of the tunnel and then extends downwards until stretching into an outside-tunnel sedimentation basin; and a main drainage pipe valve is arranged at the position, near the in-tunnel water collecting basin, of the water intaking end of the main drainage pipe, meanwhile, a water delivery pipe valve is installed above the main drainage pipe valve, and the water delivery pipe valve is connected with a submersible pump at the bottom of the in-tunnel water collecting basin sequentially through a water delivery pipe joint and a water delivery hose. The free drainage structure is suitable for adverse slope construction and tunnel projects achieving the stable flow or total yield of single in-tunnel water points.
Description
technical field [0001] The invention relates to an artesian drainage structure suitable for inverted slope tunnels. It is suitable for tunnel projects with inverted slope construction, stable single water outlet point flow or stable total water inflow in the tunnel. Background technique [0002] During the excavation of inverted slope tunnels, groundwater is an unavoidable problem. The tunnel section with relatively developed groundwater usually has the characteristics of large water inflow and stable flow. However, the above-mentioned measures have disadvantages such as large investment in equipment, high operating costs, the need to arrange on-duty personnel to switch on and off the water pump regularly, and a high proportion of water pump maintenance. Big security risk. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an artesian drainage structure suitable for downhill tunnels when the water output in the ab...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 高林冬房敦敏陈永红金志国刘宁潘益斌
Owner POWERCHINA HUADONG ENG COPORATION LTD