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An integrated device for dewatering, spring preservation and refilling in foundation pit engineering

A technology for engineering and foundation pits, which is applied in the field of integrated devices for dewatering, spring preservation, and recharge in foundation pit engineering. It can solve the problems that the amount of recharge cannot meet the amount of precipitation and water inflow in foundation pits, damage the groundwater system, and affect the quality of groundwater, so as to achieve protection and stable gushing. The effect of preventing deformation of nearby strata and reducing damage

Active Publication Date: 2016-06-15
JINAN RAILWAY TRANSPORT GRP CO LTD
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Problems solved by technology

[0004] At present, the main problem area is the Quaternary aquifer, which has good water-richness, large water inflow, and high water level. , the ordinary well-forming process will cause rock well wall overflow, and the ordinary direct recharge technology may also damage the groundwater system and affect the quality of groundwater

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  • An integrated device for dewatering, spring preservation and refilling in foundation pit engineering
  • An integrated device for dewatering, spring preservation and refilling in foundation pit engineering
  • An integrated device for dewatering, spring preservation and refilling in foundation pit engineering

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Embodiment Construction

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0032] Taking Jinan spring system as an example, the recharge, runoff, and discharge areas of Jinan spring have better hydrogeological conditions, and the three types of aquifers, namely, Quaternary pore water, igneous rock fissure water, and limestone karst water, are mutually replenished and connected, and there are different types of aquifers. The migration mode constitutes a unique hydrogeological system in Jinan. The spring recharge area has the characteristics of large water inflow and high water level.

[0033] Under the above-mentioned special hydrogeological conditions, a new type of recharge technology is adopted, which effectively increases the amount of recharge water and reduces the impact of the project construction on the spring system. The well completion process of this technology can meet the normal ...

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Abstract

The invention discloses a water settling, spring protection and recharging integrated device for foundation pit engineering. The water settling, spring protection and recharging integrated device is characterized in that one end of a recharging water quality treatment system is connected with a water settling well, the other end of the recharging water quality treatment system is sequentially and serially connected with a water quality monitoring system, a pressurizing and water collecting system, a wellhead device and a recharging well, and the water quality of the sucked underground water is analyzed by the recharging water quality treatment system and the water quality monitoring system; when the recharging water quality requirement is met, the recharging water enters the pressurizing and water collecting system, and the water of the pressurizing and water collecting system enters the recharging well through the recharging wellhead device at fixed flow rate and fixed pressure; when the recharging water quality requirement is not met, the recharging water flows back to the recharging water quality treatment system, and the water quality is analyzed and treated again. The water settling, spring protection and recharging integrated device has the beneficial effects that by utilizing the underground water recharging technique, the stability of the underground water level near the construction area can be effectively controlled, the deformation of adjacent stratum is prevented, and the safety threat of construction on the neighboring residents is reduced.

Description

technical field [0001] The invention relates to the technical field of dewatering and recharging of foundation pits, in particular to an integrated device for dewatering and protecting springs for foundation pit engineering. Background technique [0002] In the past, water-stop curtains were generally used in the construction of regional foundation pits with a large amount of water inflow. However, the water-stop curtains for ordinary deep foundation pits are expensive, and the water-stopping effect of confined water and micro-confined water is poor, and there have been many flooding accidents. Recharge technology first appeared in the foundation pit dewatering areas in Shanghai and other domestic hydrogeological complex areas, but for areas with unique hydrogeological conditions, such as high water level and small head difference, the ordinary direct recharge technology is far from satisfying the foundation. Pit dewatering well water inflow, ordinary pressurized recharge wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00
CPCE02D3/00E02D19/10
Inventor 王国富路林海曾纯品
Owner JINAN RAILWAY TRANSPORT GRP CO LTD
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