CN204941526U - Multilayer water level observation well structure - Google Patents

Multilayer water level observation well structure Download PDF

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Publication number
CN204941526U
CN204941526U CN201520597584.5U CN201520597584U CN204941526U CN 204941526 U CN204941526 U CN 204941526U CN 201520597584 U CN201520597584 U CN 201520597584U CN 204941526 U CN204941526 U CN 204941526U
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China
Prior art keywords
well
boring
observation well
water level
observation
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CN201520597584.5U
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Chinese (zh)
Inventor
瞿成松
李兴国
高亮
殷立锋
徐丹
李永辉
赵志银
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China Construction Eighth Engineering Division Co Ltd
First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Shanghai Changkai Geotechnical Engineering Co Ltd
Original Assignee
China Construction Eighth Engineering Division Co Ltd
First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd
Shanghai Changkai Geotechnical Engineering Co Ltd
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Application filed by China Construction Eighth Engineering Division Co Ltd, First Construction Co Ltd of China Construction Eighth Engineering Division Co Ltd, Shanghai Changkai Geotechnical Engineering Co Ltd filed Critical China Construction Eighth Engineering Division Co Ltd
Priority to CN201520597584.5U priority Critical patent/CN204941526U/en
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Abstract

The utility model relates to a kind of multilayer water level observation well structure that can be applicable to narrow field multi-layered aquifer and observe simultaneously.Its objective is and a kind of multilayer water level observation well structure is provided, can reduce construction plant requirement, be applicable to narrow field and observation point and the many object of construction production of observation layer bit quantity, can construction cost be reduced.A kind of multilayer water level observation well structure, comprise: dig the boring in underground, be provided with bottom in the aquifer, bottom of described boring and fill out gravel bed, the top that gravel bed is filled out in described bottom is provided with bottom sealing layer, observation well well casing is located in boring, described observation well well casing is positioned at the top of described bottom sealing layer, be provided with top between described boring and observation well well casing outer wall and fill out gravel bed, top sealing layer and argillic horizon, the bottom of described observation well well casing is provided with sediment tube, the top of described sediment tube is provided with chimney filter, hydraulic pressure sensor is located in the aquifer, bottom of described boring, the cable of described hydraulic pressure sensor extends to well head.

Description

Multilayer water level observation well structure
Technical field
The utility model relates to observation well structure, specifically, relates to a kind of multilayer water level observation well structure that can be applicable to narrow field multi-layered aquifer and observe simultaneously.
Background technology
Current observation well is many to be served as by independent pipe well, and for observing different layers position SEA LEVEL VARIATION need carry out repeatedly Cheng Jing, all there are certain requirements, and the construction period is longer, cost is higher to place and construction.
Utility model content
The purpose of this utility model is to provide a kind of multilayer water level observation well structure, can reduce construction plant requirement, is applicable to narrow field and observation point and the many object of construction production of observation layer bit quantity, can reduces construction cost.
The purpose of this utility model is achieved in that
A kind of multilayer water level observation well structure, comprise: the boring being embedded in underground, be provided with bottom in the aquifer, bottom of described boring and fill out gravel bed, the top that gravel bed is filled out in described bottom is provided with bottom sealing layer, observation well well casing is located in boring, described observation well well casing is positioned at the top of described bottom sealing layer, be provided with top between described boring and observation well well casing outer wall and fill out gravel bed, top sealing layer and argillic horizon, the bottom of described observation well well casing is provided with sediment tube, the top of described sediment tube is provided with chimney filter, at least one hydraulic pressure sensor is provided with in the aquifer, bottom of described boring, the cable of described hydraulic pressure sensor extends to well head.
Wherein, described hydraulic pressure sensor be respectively provided with at least 1.0m thickness up and down fill out gravel bed; Thickness >=the 2.5m of described sealing layer.
Wherein, described hydraulic pressure sensor is pore pressure gauge.
Preferably, the diameter >=300mm of described boring.
The utility model is owing to have employed technique scheme, compared with prior art there is following beneficial effect: the utility model multilayer water level observation well structure buries hydraulic pressure sensor underground in the below of observation well, when SEA LEVEL VARIATION, concrete numerical value is determined by the change of the hydraulic pressure sensor buried underground in aquifer, bottom, concrete numerical value is determined by the change of observation well middle water level in aquifer, top, thus reach the object can distinguishing observation SEA LEVEL VARIATION, multiple layers of position SEA LEVEL VARIATION can be observed after one-step pore-creating.
Accompanying drawing explanation
By following embodiment of the present utility model and description taken together with the accompanying drawings, other advantage of the present utility model and feature are shown, this embodiment provides by way of example, but is not limited to this, wherein:
Fig. 1 is the vertical section constructional drawing of a preferred embodiment of the utility model multilayer water level observation well structure.
Wherein: 1, hole; 2, bottom sealing layer; 3, gravel bed is filled out in bottom; 4, observation well well casing; 5, gravel bed is filled out on top; 6, top sealing layer; 7, argillic horizon; 8, sediment tube; 9, chimney filter; 10, pore pressure gauge; 11, cable.
Detailed description of the invention
As shown in the figure, a kind of multilayer water level observation well structure, comprise: the boring 1 being embedded in underground, its soil is followed successively by aquifer, bottom, water barrier, aquifer, top, water barrier from bottom to up, be provided with the bottom formed by filling gravel material in the aquifer, bottom of boring 1 and fill out gravel bed 3, the top that gravel bed 3 is filled out in bottom is provided with the bottom sealing layer 2 formed by sealing material, observation well well casing 4 is located in boring 1, be positioned at the top of bottom sealing layer 2, be provided with top between boring 1 and observation well well casing 4 outer wall and fill out gravel bed 5, top sealing layer 6 and argillic horizon 7.The bottom of observation well well casing 4 is provided with sediment tube 8, and the top of sediment tube 8 is provided with chimney filter 9, and be provided with pore pressure gauge 10 in the aquifer, bottom of boring 1, the cable 11 of pore pressure gauge 10 extends to well head.
During construction, one-tenth diameter is the boring 1 of 400mm in the earth formation, and carries out hole clearly.By pore pressure gauge 10 connecting cable 11 times in the boring 1 become, after pore pressure gauge 10 times to the degree of depth of specifying, insert gravel material formation bottom according to projected depth and fill out gravel bed 3, and ensure the gravel material respectively having 1.5m up and down of pore pressure gauge 10, bottom is filled out after gravel bed 3 has been filled and is inserted the thick sealing material formation bottom sealing layer 2 of 5m, mounting design length welds observation well well casing 4, chimney filter 9 and sediment tube 8 successively again, the observation well well casing 4 welded is arranged centralizer, lower observation well well casing 4, makes observation well well casing 4 be placed in boring 1.Insert gravel material, sealing material and clay successively until earth's surface between boring 1 and observation well well casing 4 outer wall, form top and fill out gravel bed 5, top sealing layer 6 and argillic horizon 7, the thickness of its middle and upper part sealing layer is also 5m.
Although the utility model is illustrated hereinbefore according to preferred embodiment, but this does not represent that scope of the present utility model is confined to above-mentioned structure, such as, although be only provided with a pore pressure gauge 10 in the aquifer, bottom of boring 1 in above-described embodiment, but according to design needs, also two or more pore pressure gauge can be provided with.As long as the equivalent substitution structure that those skilled in the art can develop easily after reading above-mentioned explanation, the equalization done under the spirit not departing from the utility model and scope changes and modifies, and all should be covered by within the utility model the scope of the claims.

Claims (5)

1. a multilayer water level observation well structure, it is characterized in that, comprise: the boring being embedded in underground, be provided with bottom in the aquifer, bottom of described boring and fill out gravel bed, the top that gravel bed is filled out in described bottom is provided with bottom sealing layer, observation well well casing is located in boring, described observation well well casing is positioned at the top of described bottom sealing layer, be provided with top between described boring and observation well well casing outer wall and fill out gravel bed, top sealing layer and argillic horizon, the bottom of described observation well well casing is provided with sediment tube, the top of described sediment tube is provided with chimney filter, at least one hydraulic pressure sensor is provided with in the aquifer, bottom of described boring, the cable of described hydraulic pressure sensor extends to well head.
2. multilayer water level observation well structure as claimed in claim 1, is characterized in that: described hydraulic pressure sensor be respectively provided with at least 1.0m thickness up and down fill out gravel bed.
3. multilayer water level observation well structure as claimed in claim 1, is characterized in that: the thickness >=2.5m of described sealing layer.
4. multilayer water level observation well structure as claimed in claim 1, is characterized in that: described hydraulic pressure sensor is pore pressure gauge.
5. multilayer water level observation well structure as claimed in claim 1, is characterized in that: the diameter >=300mm of described boring.
CN201520597584.5U 2015-08-10 2015-08-10 Multilayer water level observation well structure Active CN204941526U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520597584.5U CN204941526U (en) 2015-08-10 2015-08-10 Multilayer water level observation well structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520597584.5U CN204941526U (en) 2015-08-10 2015-08-10 Multilayer water level observation well structure

Publications (1)

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CN204941526U true CN204941526U (en) 2016-01-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192971A (en) * 2016-08-26 2016-12-07 中冶集团武汉勘察研究院有限公司 A kind of artesian water water-level observation well construction and the method for multilamellar water-level observation
CN110439029A (en) * 2019-08-14 2019-11-12 四川省地质矿产勘查开发局成都水文地质工程地质队 A kind of double-aquifer monitoring well device and its building method
CN110863815A (en) * 2019-11-26 2020-03-06 中国矿业大学 Method for monitoring ecological water source disturbance caused by overburden mining abscission layer expansion and barrier
CN111963146A (en) * 2020-07-14 2020-11-20 临沂矿业集团菏泽煤电有限公司 Monitoring net for inclined underground water level of well shaft in industrial square

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192971A (en) * 2016-08-26 2016-12-07 中冶集团武汉勘察研究院有限公司 A kind of artesian water water-level observation well construction and the method for multilamellar water-level observation
CN110439029A (en) * 2019-08-14 2019-11-12 四川省地质矿产勘查开发局成都水文地质工程地质队 A kind of double-aquifer monitoring well device and its building method
CN110863815A (en) * 2019-11-26 2020-03-06 中国矿业大学 Method for monitoring ecological water source disturbance caused by overburden mining abscission layer expansion and barrier
CN110863815B (en) * 2019-11-26 2021-10-22 中国矿业大学 Method for monitoring ecological water source disturbance caused by overburden mining abscission layer expansion and barrier
CN111963146A (en) * 2020-07-14 2020-11-20 临沂矿业集团菏泽煤电有限公司 Monitoring net for inclined underground water level of well shaft in industrial square
CN111963146B (en) * 2020-07-14 2021-10-08 临沂矿业集团菏泽煤电有限公司 Monitoring net for inclined underground water level of well shaft in industrial square

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