2994results about "Drainage" patented technology

Disclosed herein are a wireless terminal-interoperable home network system and a method for controlling the same. A home server is linked with a security device and camera installed in a building to, when the security device senses entrance/exit of an outsider into/from the building, acquire an internal image of the building from the camera and send the acquired image to a wireless terminal of a user to enable the user to monitor the internal situation of the building in real time. The user can access the home server over a wireless communication network from a remote place outside of the building without separate access to the Internet to receive the internal image of the building and check the internal situation of the building on the basis of the received internal image, resulting in an increase in convenience of use.

The invention relates to an underground central pump room draining automatic monitoring system, which comprises a PLC control cabinet, a remote expanding module, a site data bus, a contact screen, an analog quantity and switching value input module, various monitoring probes, a travel switch, a level instrument and an executable section. A monitoring net adopts a form of combining a PROFIBUS DP site data bus and an industrial ethernet. A monitoring method for the system comprises: (1) monitoring the absorbing well water level; (2) monitoring the state for starting a high pressure switching cabinet by a water pump; (3) judging the valve levels of a gate valve, a ball valve of a water jet pumping device and a water distribution gate; (4) judging the valve levels of a vacuum pump ball valve; (5) measuring each equipment temperature measuring point; (6) measuring signals of a pressure sensor and a negative pressure sensor; (7) judging system faults; (8) automatically controlling the start-stop and operation numbers of the water pumps according to the absorbing well water level conditions; and (9) setting power supply peak avoiding time periods, and automatically selecting starting time and numbers of a pump. The system improves the system working reliability, reduces the equipment fault rate, and adopts a three-stage monitoring structure for a draining system.

The invention relates to a tunnel lining self waterproof drainage system, which comprises a surrounding rock bearing arch, a cast-in-place cement main waterproof layer, a pre-cast cement arch sheet layer and longitudinal drainage channels. Arch sheet layer construction gaps and cast-in-place cement main waterproof layer construction gaps are interlaced. The tunnel lining self waterproof drainage system is characterized in that movable drainage grooves are fixedly arranged below the pre-cast cement arch sheet layer of centralized bursting water seepage points of loose surrounding rocks, and form arch sheet drainage spaces with an inwards concave surface of the pre-cast cement arch sheet layer, the parallel drainage spaces distributed along the section of a tunnel form a movable drainage channel, the longitudinal drainage channels are communicated and are arranged on two sides of the movable drainage channel and the pavement of the tunnel, pre-embedded water guiding pipes are arranged at the centralized bursting water seepage points, a water outlet end of each pre-embedded water guiding pipe is arranged on the inwards concave surface of the pre-cast cement arch sheet layer, and pre-embedded grouting pipes are arranged outside the pre-embedded water guiding pipes. The invention completely solves stubborn problems of the tunnel on cracking, seeping, frost heaving, ponding or freezing and the like on the premise of not arranging an interlayer waterproof layer and a hidden seepage water blind pipe drainage system, and the tunnel lining self waterproof drainage system disclosed by the invention has a simple structure and is convenient to construct.

The invention relates to the field of tunnel engineering construction, in particular to a control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections. According to the control method, problems in the existing methods that managing circle is long, reinforcing range and effect are bad, secondary geological disasters are triggered easily because of deformation and cracking of exceeding clearance limit of preliminary bracing and the like are solved. The method includes the following steps: searching and analyzing factors leading to collapse and disaster degree, stabilizing exposed face of an accumulation body and dewatering and decompressing deep parts, strengthening supporting intensity in the collapse sections and influencing areas, outburst prevention filling and strengthening the collapse accumulation body, grouting reinforcing asymmetrical peripheral curtains, confirming an excavating method in grouting reinforcing collapse sections and primary supporting patterns, replenishing grouting in parts, excavating inverted arches, and constructing second liners. The control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections has the advantages that collapse disposing construction period of water-rich very-broken surrounding rock tunnels is shortened, reinforcing range and intensity of the surrounding rocks are guaranteed, grouting reinforcement is fully conducted on the surrounding rocks in direct collapse areas, deformation in the preliminary bracing is relieved, occurrence of the exceeding clearance limit and the secondary geological disasters is avoided, disposing quality of collapse accidents is improved effectively, and good social benefit and economical benefit are created.

The invention discloses a method for extracting gas from a separation layer below an overlying strata, draining water and grouting through a combined drill hole and belongs to a mine disaster prevention method. The method for extracting gas from the separation layer below the overlying strata, draining water and grouting through the combined drill hole includes that installing a drill site at a transportation roadway of a preparatory work face adjacent to a coalface, constructing the combined drill hole in the part about to generate the separation layer below the overlying strata above the gob of the coalface in a mode of keeping away from a caving zone, wherein the combined drill hole is composed of an inside gas extraction pipe and a water draining-grouting pipe; after the separation layer is generated, preventing the mine disaster according to the stages that firstly, draining water from the separation layer through the combined drill hole; secondly, after the gas is gathered in the separation layer after the water in the separation layer is emptied, using the primary combined drill hole to extract the gas from the separation layer; finally, after the water and gas are completely drained and extracted from the separation layer, filling cement paste to the separation layer through the primary combined drill hole. The method for extracting gas from the separation layer below the overlying strata, draining water and grouting through the combined drill hole is capable of solving the mine disasters of water bursting in mine, gas outburst (gas emission), rock burst, surface subsidence and the like through the combined drill hole, the separation layer water and gas extraction rate is high, and the grouting effect is good.

The invention provides a method for pre-pumping coal roadway stripe gas of a single soft protruded coal seam of an unexploited area and relates to the technical field of gas pumping. Through the method, outburst removal of the area with a single soft hypotonic protruded coal seam coal roadway stripe can be achieved. The method for pre-pumping the coal roadway stripe gas of the single soft protruded coal seam of the unexploited area comprises building a concordant layer horizontal well which is 3-6m away from the coal seam from the ground to a top plate and a base plate of the single soft protruded coal seam of the unexploited area, performing segmented fracturing after oriented perforating, enabling top plate and base plate rock terrane where coal seam gas is sealed and stored originally to be transformed into a pumping liberation layer with developed fracture networks, enabling the pumping liberation layer to be communicated with the coal seam in a large-area mode through the fracture networks, performing decompression and aerogenesis by dewatering, determining whether to perform negative pressure pumping according to water production conditions, enabling the coal seam gas to be desorbed and diffused continuously, and pumping the gas massively by pumping a horizontal well opening in the liberation layer. By pumping the gas massively, the outburst prevention index in the coal roadway stripe can be reduced to below the safety standard in the outburst prevention rules, and safe and speedy drivage is achieved.

The invention discloses a construction method for penetrating through a large-scale vertical karst cave group tunnel. A technical measure of backfilling concrete to reserve a water passing channel is adopted for a large-scale vertical karst cave group, by strengthening support of a steel arch frame and a pipe shed for a karst cave section, a reinforced concrete beam plate structure is adopted to span on a karst cave section tunnel bottom, the bearing capacity of foundation is greatly improved, municipal bellows are pre-embedded into circumferential cracks of the vertical karst cave group and an arch karst cave before backfilling the concrete and are led to the water passing channel, the hidden danger of high-pressure karst water due to long-term water accumulation is eliminated, and the construction period and the security of future operation period are ensured. The construction method for penetrating through the large-scale vertical karst cave group tunnel is convenient to construct, the construction period is greatly shortened, the treatment filling effect of the karst cave is improved, the safety of subsequent construction is improved, material filling and the construction method are simple and convenient and without special requirements, and good use effect of field construction is obtained.

The invention discloses a construction method of a high-tension water-rich extra-large-section weak breccia tunnel. The method includes the steps of exploring distribution of fault weak breccia in front of a tunnel face by an advanced geological forecast method; distributing L-shaped gradient drain holes in two inner sides of the tunnel, providing sector drain holes and grouting holes, and allowing upper grouting and lower drainage; providing a combined cylinder grout-stopping wall, and performing a full-face advanced chemical grouting consolidation; constructing an advanced long tube shed with a circumferential closed advanced tube shed guide wall having a foundation, distributing tapered quincunx examining drain holes to detect grouting effect, and finally excavating the tunnel. Through the use of the techniques such as three-layer stereoscopic grouting and drainage, and cement-water glass and epoxy resin sequential grouting, the problem that a high-tension water-rich surrounding rock area with loose weak breccia has ineffective grouting consolidation and non-obvious water plugging effect is solved.

The invention relates to a fault processing method of a high pressure water enrichment area, comprising the following steps of: a. ascertaining the boundary of a tunnel passing through a fault through geological exploration and advance geological prediction, and judging the inflow direction of the fault; b. excavating a drainage hole at the inflow side of the fault next to the tunnel according to the inflow direction of the fault; c. carrying out advanced grouting pre-strengthening per cycle on a tunnel working face under the condition that the drainage hole drains and depressurizes; d. drilling towards the tunnel direction in the drainage hole before excavation and after the grouting pre-strengthening per cycle of the tunnel meets requirements, increasing the drainage ability by using the drilled hole, and further reducing the seepage water pressure in a surrounding rock at the periphery of the tunnel; and e. tunneling from the tunnel working face. Through arranging the drainage hole, the invention reduces the seepage water pressure near the tunnel, effectively avoids the occurrence of the phenomenon of water burst, mud gushing (stones) of fault broken rocks under the action of high pressure water in the construction process and improves the safety and the reliability of tunnel construction and operation.

The invention discloses a drilling, pumping and discharging integrated coal seam pressure relief and permeability improvement device and a using method thereof. The drilling, pumping and discharging integrated coal seam pressure relief and permeability improvement device comprises a water jet high and low pressure switching device, a blowout control hole guide device and a gas and slag separation discharge device. The water jet high and low pressure switching device is positioned between a drill bit and a drill stem and can achieve flexible switching between low-pressure drilling and high-pressure water jet slotting and punching. The blowout control hole guide device is positioned between the drill stem and a drill hole and used for guiding water coal slag and gas sprayed out of the drill hole into the gas and slag separation discharge device. The gas and slag separation discharge device is connected with the blowout control hole guide device through a pipeline and used for separating and discharging the coal slag and the gas in a sealed environment. The complete drilling, pumping and discharging integrated coal seam pressure relief and permeability improvement device can achieve flexible switching of high and low pressure drilling, timely collects, separates and discharges the gas and slag, and is simple, reliable, easy to assemble and disassemble, capable of being used for multiple times conveniently and especially suitable for performing multiple drill hole operation at the same workplace.

The invention relates to an underground draining and grouting process in thin bedrock and thick loose sand layer rich water areas. The underground draining and grouting process includes constructing a first drill hole, installing an orifice pipe, grouting, constructing a second drill hole, installing a deep-hole grouting pipe, draining, installing a shallow-hole grouting pipe and sequentially performing shallow-hole grouting and deep-hole grouting in an exploration entry. By aid of solidifying and grouting for a loose sand layer, the loose sand layer can form a cemented whole body and a block or wrappage, when a working surface extracts to be below a grouting area, the solidified integral loose sand layer can serve as a top plate and the block or wrappage to fill a large-fracture water guide channel formed by top plate bedrock falling, and water bursting and sand collapsing can be prevented. The disposable deep-hole grouting pipe replaces a drilling rod for grouting, and accordingly work efficiency of a drilling machine is improved for several times and drilling rod loss is avoided.

The invention discloses a maintainable tunnel drainage system, which comprises two longitudinal drainage ditches, a plurality of transverse and longitudinal drainage blind-ended tubes, a plurality of circumferential blind-ended tubes, a plurality of inspection shafts and two side ditches. The maintainable tunnel drainage system provided by the invention collects leakage water at the top and bottom of an arch of a tunnel, road surface water and flushing water by using the plurality of transverse and longitudinal drainage blind-ended tubes below a road surface, the plurality of circumferential blind-ended tubes behind a lining and the side ditches on two sides of the road surface respectively, gathers the water into the longitudinal drainage ditches on two sides of a roadbed and then drainsthe water out of the tunnel together, so that the stereoscopic tunnel drainage system is formed. In addition, when the longitudinal drainage ditches are blocked, the inspection shafts flush the longitudinal drainage ditches with high-pressure water, so that the whole drainage system can be maintained.

The invention discloses a treatment method for non-convergence type collapse of a tunnel, which relates to the field of underground engineering and solves the problem that treatment of the non-convergence type collapse in an existing method is unreasonable, non-operable and exists a safety risk. A technical scheme employed by the treatment method is that: the treatment method for the non-convergence type collapse of the tunnel includes the following steps: 1. backfilling a collapse section and a collapse affected section to quickly restrain expansion of tunnel collapse; 2. reinforcing the collapse affected section to prevent collapse from expanding and provide safety guarantee for subsequent collapse treatment; 3. investigating a condition of the tunnel collapse; and 4. performing treatment on a tunnel collapse section. Wherein, the treatment of the tunnel collapse section is that collapse slag in a certain range outside an excavation outline of the tunnel collapse section is consolidated and grouted to form a pre-reinforcement arch, then excavation is performed, a construction steel arch and shotcrete and rock bolt support form a reinforcing arch; and after initial support and excavation of the tunnel in the collapse section are circularly completed, drainage holes are drilled, and then a waterproof board and secondary concrete lining are constructed. The treatment method scientifically and reasonably treats the non-convergence type collapse.

The invention relates to a mine water overall treatment utilizing technology. Warm water in a mined out is utilized for space heat exchange, underground drainage drilling water contained in limestone formed in Ordovician is utilized for preventing dust underground, magmatic rock drainage drilling water is used as domestic water and underground sewage is utilized after treated. The invention solves the treatment difficulty of a large quantity of mines, avoids polluting the environment, and saves precious water resources.

The invention discloses a distributed using method for mine underground water. The method comprises the following steps of: A, exploring the underground space of a mining area to obtain the basic geological data of a stratum; B, observing well underground water to obtain the flow field distribution situation, water quality data and water pressure data of underground water; C, determining one or more goaf spaces through which underground water cannot pass after coal mining as water storing space(s) of a distributed underground water reservoir according to the obtained basic geological data of the stratum as well as flow field distribution situation condition, water quality data and water pressure data of underground water; D, when a determined water-storing space is formed, enabling underground water generated during coal mining of an adjacent working surface to permeate into the water-storing space naturally; and E, pumping underground water onto the ground surface for using through a water pumping hole which is communicated to the ground surface in each water-storing space when water is required, and refilling external water into the water-storing space when stored water is required to be increased. Due to the adoption of the method, the loss of underground water and the influences on the growth and recovery of the ecological environment can be reduced.

The invention relates to the field of controlling underground water inrush disaster for mining projects and relates to a comprehensive treatment method of mine water inrush. The method includes the steps of setting a mine hydrogeology observation network; measuring a mine underwater supply area, a mine drainage area and a mine runoff area; exploring and measuring a water guide passage and fissures of the mine underwater supply area; determining and implementing a grouting curtain blocking scheme of the mine underwater supply area; designing and implementing a drainage treatment scheme of the mine drainage area, and after implementing the grouting curtain blocking scheme, performing underwater drainage treatment in the mine drainage area; implementing a scheme for dynamic monitoring of mine underwater level and information-based dredging and blocking treatment, during underwater drainage treatment in the mine drainage area, and dynamically monitoring the underwater level in the mine runoff area to finish the scheme.

The invention relates to a large-section water-rich saturated fine sand railway tunnel excavation method. The method includes the following steps that firstly, pilot tunnels of double side walls are constructed in the lower half section of a positive hole of a tunnel in advance and are excavated with sub-steps, temporary inverted arches are arranged on the pilot tunnels respectively, rings are formed in a sealed and segmented mode, and sub-steps are used for carrying out look-ahead dewatering and drainage on the pilot tunnels; secondly, a method that an arc pilot channel is used for reserving core earth is used for excavating the upper section of the positive hole of the tunnel, the core earth is used for stabilizing a tunnel face, arc excavation is performed in place at a time, the positive hole primary supporting steel frame is spliced in place at a time, the temporary inverted arches and a middle partition wall which are next to the tunnel face are constructed to make an upper portion supporting structure form a ring in a sealed mode, the sub-steps are manually cut to excavate the core earth, an overall positive hole primary supporting lagging jack structure is rapidly established, the inverted arches are cast and concrete filling can be carried out in time; thirdly, a result is analyzed according to monitoring measurement data, the inner side wall in the hole, the temporary inverted arches and the middle partition wall are detached in a segmented mode and a composite lining is constructed in time. By means of the method, the construction problem that the self stability of the fine sand is poor and the fine sand rapidly deteriorates when encountering water and surges outwards like quicksand is solved.

The invention discloses a tunnel waterproof and water-draining system and a construction method thereof. The tunnel waterproof and water-draining system comprises a water draining layer, a transition layer, a waterproof layer, a transverse water draining pipe, a central water draining pipe and the like, and the water draining layer, the transition layer and the waterproof layer are located between a tunnel primary support and a secondary lining. The water draining layer comprises water-permeable shotcrete, a longitudinal water draining pipe, an annular water draining pipe and a waterstop strip, the longitudinal water draining pipe, the annular water draining pipe and the waterstop strip are fixed to the outer surface of the primary support to carry out water draining partitioning on the primary support, and the water-permeable shotcrete is sprayed in each water draining area. The annular water draining pipe and the central water draining pipe are connected through the transverse water draining pipe, and finally the tunnel water draining system is formed. The transition layer and the waterproof layer are formed by shotcrete with different grades and used for waterproofness of a tunnel. According to the tunnel waterproof and water-draining system and the construction method thereof, the water draining pipes and the water-permeable shotcrete form a tunnel stereoscopic water draining passage, the water draining effect of the tunnel is good, the tunnel waterproof and water-draining system and the structure of the tunnel are integrated, and the long-term service performance is good.

The present invention discloses a mining area high hydraulic pressure block-dreging mining method. Said method includes the following several steps: in the mining area coal bed floor excavating water discharge tunnel along the coal bed tendency, in the water discharge tunnel placing drilling yard and constructing water discharge drill hole into working face, fully utilizing cracks produced in the coral bed floor due to mine pressure to make the water be flowed into drillhole and discharged out from water discharge tunnel.

The invention discloses a concentrated drainage device and method of tunnel engineering, which comprises the following parts: water diversion pipe, filter layer on the outside of water diversion pipe, funnel under the initial support water diversion pipe, screen under the funnel and drainage pipe under the screen, wherein the water diversion pipe is set in the water diversion hole d of tunnel adjacent bed creepage centralization part. The method comprises the following steps: drilling the water diversion hole d in the tunnel initial support and tunnel adjacent bed creepage centralization part; leveling the initial support surface; setting the concentrated drainage device in the tunnel engineering.

The invention discloses a grouting integrated controlling method for an underground engineering top weakly cemented rock mass permeation damage region. The grouting integrated controlling method for the underground engineering top weakly cemented rock mass permeation damage region comprises the following steps that means of geological analysis and geophysical exploration are utilized jointly, and hydrogeological conditions of a treated region are ascertained; supporting reinforcement is conducted on a permeation instable damaged section and an affected region; treatment schemes of water releasing and pressure reducing layered grouting are designed; water releasing and pressure reducing drilling construction and layered grouting engineering are implemented and regulated dynamically; water releasing and pressure reducing holes are blocked in flowing water with high pressure and large volume; and monitoring for surrounding rock deformation is enhanced. After the grouting integrated controlling method for the underground engineering top weakly cemented rock mass permeation damage region is adopted for construction, weakly cemented rock mass reinforcement and blocking of water surge with high pressure and large volume are implemented in different levels and stages, the different problems that treatment engineering is long in period and secondary geological disasters are prone to trigger are effectively solved, grouting efficiency is improved, and good social and economic benefits are created.

The invention discloses a tunnel circumferential drainage pipe provided with a band insulation layer. The tunnel circumferential drainage pipe comprises a circumferential drainage pipe behind the liner wall, and two circumferential drainage pipe which are arranged below the road surface and are connected with two ends of the circumferential drainage pipe behind the liner wall., wherein the circumferential drainage pipes behind the liner wall is a water permeable pipe, the two circumferential drainage pipe arranged below the road surface are arranged transversely and are communicated with the circumferential drainage pipe behind the lining wall and a central drainage pipe at the center of the tunnel. The band insulation layer arranged at one side of the circumferential drainage pipe behind the liner wall close to a concrete lined wall comprises two layers of waterproof boards and a heat insulation material layer between the two layers of the waterproof boards. The tunnel circumferential drainage pipe has a simple structure, low cost, and short flow distance of drainage. In addition, the heat insulation material is not soaked by stratum seeped water, and the pipe is not blocked due to icing, so the stratum seeped water behind the tunnel liner wall can be effectively and rapidly drained.