The invention discloses an ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions, comprising: a tunnel portal section drainage structure and a tunnel body section drainage structure and an out-tunnel clear water ditch, an out-tunnel deep-buried ditch, an out-tunnel sewage ditch and a clear water tank; the tunnel portal section drainage structure comprises a central ditch and a side sewage ditch A, the central ditch is deeply buried in the position, lower than the freezing depth, of a tunnel portal section of the main tunnel, and the side sewage ditches A are arranged on both sides of the tunnel portal section of the main tunnel; the tunnel body section drainage structure comprises a side clear water ditch and a side sewage ditch B, and the side clear water ditch and the side sewage ditch B are arranged on both sides of the tunnel body section of the main tunnel. The structure has the advantages that separation and discharge treatment of clear water and sewage during tunnel construction and operation is realized, and high environmental requirements are met; the tunnel portal section and the tunnel body section are separately provided with a drainage structure, the heat preservation requirement of drainage in cold regions is met, and underground water can be effectively prevented from seeping into the tunnel to cause freezing disasters; the drainage capacity of the main tunnel is enhanced through assistance of the service tunnel, and super-large water drainage of the ultra-long tunnel is achieved.

The invention discloses an ultra-long tunnel sewage disposal, separation and drainage structure suitable for cold regions, comprising: a tunnel portal section drainage structure and a tunnel body section drainage structure and an out-tunnel clear water ditch, an out-tunnel deep-buried ditch, an out-tunnel sewage ditch and a clear water tank; the tunnel portal section drainage structure comprises a central ditch and a side sewage ditch A, the central ditch is deeply buried in the position, lower than the freezing depth, of a tunnel portal section of the main tunnel, and the side sewage ditches A are arranged on both sides of the tunnel portal section of the main tunnel; the tunnel body section drainage structure comprises a side clear water ditch and a side sewage ditch B, and the side clear water ditch and the side sewage ditch B are arranged on both sides of the tunnel body section of the main tunnel. The structure has the advantages that separation and discharge treatment of clear water and sewage during tunnel construction and operation is realized, and high environmental requirements are met; the tunnel portal section and the tunnel body section are separately provided with a drainage structure, the heat preservation requirement of drainage in cold regions is met, and underground water can be effectively prevented from seeping into the tunnel to cause freezing disasters; the drainage capacity of the main tunnel is enhanced through assistance of the service tunnel, and super-large water drainage of the ultra-long tunnel is achieved.

A draining mesh module for building into a construction, such as a tunnel wall, to provide draining channels in said construction, includes at least one semi pipe of a flexible material. The draining mesh module has a longitudinal direction and a cross direction extending crosswise to the longitudinal direction. The semi pipe constitutes a part of a channel extending from one longitudinal end to an opposite longitudinal end of the draining mesh module, and that the longitudinal ends of the draining mesh module comprise attachment means for interconnecting longitudinal ends of two adjacent draining mesh modules, whereby a channel in one of those two draining mesh modules is connected to a channel in the other of those two draining mesh modules.

A draining mesh module for building into a construction, such as a tunnel wall, to provide draining channels in said construction, includes at least one semi pipe of a flexible material. The draining mesh module has a longitudinal direction and a cross direction extending crosswise to the longitudinal direction. The semi pipe constitutes a part of a channel extending from one longitudinal end to an opposite longitudinal end of the draining mesh module, and that the longitudinal ends of the draining mesh module comprise attachment means for interconnecting longitudinal ends of two adjacent draining mesh modules, whereby a channel in one of those two draining mesh modules is connected to a channel in the other of those two draining mesh modules.

A draining mesh module for building into a construction, such as a tunnel wall, to provide draining channels in said construction, includes at least one semi pipe of a flexible material. The draining mesh module has a longitudinal direction and a cross direction extending crosswise to the longitudinal direction. The semi pipe constitutes a part of a channel extending from one longitudinal end to an opposite longitudinal end of the draining mesh module, and that the longitudinal ends of the draining mesh module comprise attachment means for interconnecting longitudinal ends of two adjacent draining mesh modules, whereby a channel in one of those two draining mesh modules is connected to a channel in the other of those two draining mesh modules.

A draining mesh module for building into a construction, such as a tunnel wall, to provide draining channels in said construction, includes at least one semi pipe of a flexible material. The draining mesh module has a longitudinal direction and a cross direction extending crosswise to the longitudinal direction. The semi pipe constitutes a part of a channel extending from one longitudinal end to an opposite longitudinal end of the draining mesh module, and that the longitudinal ends of the draining mesh module comprise attachment means for interconnecting longitudinal ends of two adjacent draining mesh modules, whereby a channel in one of those two draining mesh modules is connected to a channel in the other of those two draining mesh modules.

Disclosed is a blockage-proof water diversion and drainage device for highway tunnel construction. The device may include an inlet cleaning component, a diversion component connected to a bottom of the inlet cleaning component, a debris collection component connected to an end of the diversion component close to the inlet cleaning component, and a pre-storage component connected to a bottom of the diversion component. An outlet end of the pre-storage component may be connected to the debris collection component. An openable baffle component and a screen plate may be provided inside a main pipe of the diversion component which can transfer filtered sludge and other debris to the debris collection component, keeping the main pipe clean, maintaining the drainage speed of accumulated water, and reducing the frequency of manual cleaning. Additionally, the device can scrape and clean a surface of the screen plate to prevent blocked, thus extending device maintenance time.

Disclosed is a blockage-proof water diversion and drainage device for highway tunnel construction. The device may include an inlet cleaning component, a diversion component connected to a bottom of the inlet cleaning component, a debris collection component connected to an end of the diversion component close to the inlet cleaning component, and a pre-storage component connected to a bottom of the diversion component. An outlet end of the pre-storage component may be connected to the debris collection component. An openable baffle component and a screen plate may be provided inside a main pipe of the diversion component which can transfer filtered sludge and other debris to the debris collection component, keeping the main pipe clean, maintaining the drainage speed of accumulated water, and reducing the frequency of manual cleaning. Additionally, the device can scrape and clean a surface of the screen plate to prevent blocked, thus extending device maintenance time.

A method for constructing an artificial water-conducting channel through pulse hydraulic fracturing of drainage boreholes in a roof aquifer includes constructing an artificial water-conducting channel in a sandstone fissure aquifer through arrangement of drainage boreholes and pulse hydraulic fracturing, which improves the permeability of dense and intact sandstone rock masses. The artificial water-conducting channel formed through arrangement of drainage boreholes is connected to discontinuous water-bearing areas and water-rich areas, and water from roof sandstone fissures is diverted to the drainage boreholes through the artificial water-conducting channel, thereby achieving effective drainage of the boreholes and expanding a radiation range of single-borehole drainage. The method not only avoids the arrangement of excessive drainage boreholes and significantly improves the drainage efficiency of prospecting and drainage boreholes, but also facilitates advance drainage during the mining process. The method enables effective control of mine water hazards, thereby ensuring safe production of the mine.

A method for constructing an artificial water-conducting channel through pulse hydraulic fracturing of drainage boreholes in a roof aquifer includes constructing an artificial water-conducting channel in a sandstone fissure aquifer through arrangement of drainage boreholes and pulse hydraulic fracturing, which improves the permeability of dense and intact sandstone rock masses. The artificial water-conducting channel formed through arrangement of drainage boreholes is connected to discontinuous water-bearing areas and water-rich areas, and water from roof sandstone fissures is diverted to the drainage boreholes through the artificial water-conducting channel, thereby achieving effective drainage of the boreholes and expanding a radiation range of single-borehole drainage. The method not only avoids the arrangement of excessive drainage boreholes and significantly improves the drainage efficiency of prospecting and drainage boreholes, but also facilitates advance drainage during the mining process. The method enables effective control of mine water hazards, thereby ensuring safe production of the mine.