5 results about "Groundwater" patented technology

The invention discloses a rapid construction method of a long tunnel under complex geologic conditions, which comprises the following steps: S1, carrying out 30-150m long-distance geologic prediction on the geologic conditions of a tunnel, and carrying out 5-30m short-distance geologic prediction on the geologic conditions of the tunnel on the basis of the long-distance geologic prediction; S2, excavating wall rocks of IVb and V levels according to the geologic prediction conditions by adopting a bench cut method, and excavating wall rocks of III and IVa levels by adopting a full section method; S3, predicting underground water pressure of the tunnel at the water-rich section according to the geologic prediction conditions, and adopting different curtain grouting schemes; and S4, after tunnel excavation, monitoring and measuring the geologic conditions, primary support conditions, peripheral displacement and vault sinking value. The rapid construction method has the beneficial effect of safely and rapidly finishing tunnel construction tasks under poor geologic zones.

The process of eliminating pollutant from underground water with combined nanofiltering membrane includes the following steps: 1. pre-treatment and treating with nanofiltering membrane; 2. analyzing the quality of polluted underground water through measuring Fe and Mn content, potassium permanganate index and relative organic matter molecular weight; 3. determining whether to progress to the following steps through water quality analysis; 4. performing the combined process A or B to treat water to reach drinking water standard in condition of potassium permanganate index not lower than 2.0 mg/l, Fe less than 0.2mg/l and Mn less than 0.05 mg/l; and 5. performing the combined process C or D to treat water to reach drinking water standard in condition of potassium permanganate index not lower than 2.0 mg/l, and Fe less than 0.2mg/l and/or Mn less than 0.05 mg/l. The present invention may be applied widely in water supply of city.

The invention provides a mine new energy comprehensive utilization system and a control method thereof. The mine new energy comprehensive utilization system comprises a new energy collection module, aPLC, an energy utilization module and a heat-storage water tank; the new energy collection module is connected with the heat-storage water tank, and the heat-storage water tank is connected with theenergy utilization module; the new energy collection module comprises a groundwater heat collection unit; the groundwater heat collection unit comprises a well water pump, the well water pump is connected with a plate heat exchanger, the plate heat exchanger is connected with a first circulating pump, and the first circulating pump is connected with a first water source heat pump; the heat-storagewater tank is connected with the first water source heat pump; the energy utilization module comprises an air conditioner unit and a heating radiator unit; the heat-storage water tank is connected with an air conditioner circulating pump and a secondary heating unit, the air conditioner circulating pump is connected with the air conditioner unit, the secondary heating unit is connected with the heating radiator unit, and the heating radiator unit is further connected with the heat-storage water tank; and the PLC is connected with the heat-storage water tank, the well water pump, the first circulating pump, the first water source heat pump, the air conditioner circulating pump and the secondary heating unit.

The invention discloses a supersonic wave monitoring system used for real-time control of sand pile quality and a method thereof. A scheme is mainly formed by a supersonic wave monitoring device and asand pile immersed tube steel casing pipe, the supersonic wave monitoring device uses supersonic wave for real-time monitoring of a sound wave propagation speed of a sand column in a lower part of the sand pile immersed tube steel casing pipe, and compactness of the sand pile can be evaluated according to the sound wave propagation speed. Through real-time monitoring of wave velocity change conditions during a sand pile construction process, and subsequent construction of the sand pile is guided. The scheme is not influenced by underground water and soil environment, the supersonic wave monitoring system has excellent signal anti-interference capability, supersonic wave monitoring can realize real-time monitoring of acoustic velocity of each sand pile during the sand pile construction process, compactness of the sand pile realizes real-time monitoring, the sand pile quality control is increased to a construction phase, moulding quality of each sand pile is ensured, reworking problem of the sand pile can be avoided, and a construction period is saved.