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Water settling, spring protection and recharging integrated device for 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: 2015-05-06
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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  • Water settling, spring protection and recharging integrated device for foundation pit engineering
  • Water settling, spring protection and recharging integrated device for foundation pit engineering
  • Water settling, spring protection and recharging integrated device for foundation pit engineering

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Embodiment Construction

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

[0032] Taking the Jinan spring system as an example, the Jinan spring area has relatively good hydrogeological conditions for recharge, runoff, and discharge. Quaternary pore water, igneous rock fissure water, and limestone karst water are three types of aquifers that recharge each other and have different characteristics. The migration mode constitutes Jinan's unique hydrogeological system, and the spring recharge area has the characteristics of large water inflow and high water level.

[0033] For the special hydrogeological conditions mentioned above, the new recharge technology is adopted to effectively increase the recharge water volume and reduce the impact of engineering construction on the spring system. The well-forming process of this technology can meet the normal continuous pressure recharge p...

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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, spring conservation and recharging of foundation pit engineering. Background technique [0002] In the past, water-stop curtains were generally used in foundation pit construction in areas with large water inflows. However, water-stop curtains for ordinary deep foundation pits are expensive, and the water-stop effect of confined water and slightly confined water is poor, and many water seepage accidents have occurred. The recharge technology first appeared in the precipitation area of ​​the foundation pit in Shanghai and other domestic hydrogeological complex areas. However, for areas with unique hydrogeological conditions, such as high water level and small water head difference, ordinary direct recharge technology is far from meeting the needs of foundation pits. The amount of water inflow from the pit de...

Claims

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Application Information

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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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