CN109270235A - A kind of segmented single-hole multi-channel monitoring well - Google Patents

A kind of segmented single-hole multi-channel monitoring well Download PDF

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Publication number
CN109270235A
CN109270235A CN201811148105.6A CN201811148105A CN109270235A CN 109270235 A CN109270235 A CN 109270235A CN 201811148105 A CN201811148105 A CN 201811148105A CN 109270235 A CN109270235 A CN 109270235A
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China
Prior art keywords
monitoring
tube body
well
channel
cavity
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CN201811148105.6A
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Chinese (zh)
Inventor
刘军
徐卫娟
常邦华
戴昕
李钦钦
袁建海
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Nanjing Wondux Environmental Protection Technology Co Ltd
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Nanjing Wondux Environmental Protection Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18Water

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

The present invention discloses a kind of segmented single-hole multi-channel monitoring well, tube body is monitored including multistage, the monitoring tube body is hollow cylinder structure, and configured with multiple through monitoring tube length direction and the separator of relatively independent cavity for the lumen for monitoring tube body to be separated into;The monitoring tube body connects two-by-two along its length, and each cavity corresponds to connection up and down to run through the length direction of monitoring well in lumen;The monitoring tube body is also configured with the closure for being arranged in cavity bottom, and to form the monitoring channel of multiple and different monitoring depth in monitoring well, constituting on the side wall of the monitoring tube body where the bottommost cavity in the monitoring channel has the permeable hole being connected to the cavity.It is big to overcome the problems, such as that existing single-hole multi-channel monitors well internal buoyancy during well casing inside blocks difficulty and goes into the well by the segmented single-hole multi-channel monitoring well.

Description

A kind of segmented single-hole multi-channel monitoring well
Technical field
The invention belongs to groundwater monitoring technical fields, and in particular to a kind of single-hole multi-channel monitoring well of segmented.
Background technique
In recent years, due to the disadvantages of investment of traditional monitoring well is big, land occupation is more, domestic and international each scientific research institution greatly develops list Hole multi-channel testing well technology.Single-hole multi-channel monitoring well casing is that mold is integrally formed mostly, and length is according to monitoring well depth Customized, using HDPE or with PVC-U material by special equipment continuously extruding and molding, it is logical that tube cavity is separated into independent monitoring Road.Single-hole multi-channel monitoring well has following two problem in actual operation at present: (1) blocking inside single-hole multi-channel monitoring well It is difficult;(2) well internal buoyancy is big, and the well casing of plastic material is not easy tripping in.
A kind of patent of invention " groundwater monitoring well casing " of Publication No. CN 207079561U, discloses a kind of underground water Monitor well casing, it includes tube body and separates plate body, it is each it is described separate plate body leading flank along its length respectively with the tube body Axial inner wall separation seal connection, the respectively trailing flank of separation plate body connection sealed to each other, so that the tube cavity is divided It is divided into 3 independent monitoring channels;Channel blocking is respectively arranged in each monitoring channel of the bottom.It is logical in the invention Road blocking is arranged in bottom, and it is not specified how carry out channel blocking, and if between the monitor layer that is separated by farther out, It is difficult accurately to carry out channel blocking.
" a kind of multi-layered aquifer area individual well is layered groundwater monitoring to the patent of invention of 207143907 U of Publication No. CN Well " discloses a kind of multi-layered aquifer area individual well layering underground water monitoring well, including monitoring tube wall, the borehole wall, permeable filtrate are filled out Fill area and sealing material fill area;The monitoring tube wall is located inside the borehole wall, and length is identical as the borehole wall, the borehole wall and monitoring tube wall Top be connected with well head, bottom end and shaft bottom, which block, to be connected.Invention monitoring channel interior does not block, and monitoring site is in upper layer Underground water enter monitoring channel after still need to fill up the monitoring channel of lower part, to be monitored, cause sample retention in lower part It is perishable in channel, increase duration of well flushing and frequency in practical operation.
Summary of the invention
The present invention is well internal buoyancy during overcoming existing single-hole multi-channel to monitor closure difficulty inside well casing and go into the well Big problem provides a kind of segmented single-hole multi-channel monitoring well.
Technical solution provided by the invention is as follows:
A kind of segmented single-hole multi-channel monitoring well, including multistage monitor tube body, and the monitoring tube body is hollow cylinder Structure, and configured with multiple through monitoring tube length direction and relatively independent for the lumen for monitoring tube body to be separated into The separator of cavity;The monitoring tube body connects two-by-two along its length, and each cavity corresponds to connection up and down to run through in lumen The length direction of monitoring well;The monitoring tube body is also configured with the closure for being arranged in cavity bottom, more to be formed in monitoring well The monitoring channel of a different monitoring depth, constitutes and has on the side wall of the monitoring tube body where the bottommost cavity in the monitoring channel There is the permeable hole being connected to the cavity.
As a preferred embodiment, the separator includes muti-piece rectangular partition plate, and the side of rectangular partition plate is mutually close The inner wall of envelope connection, the other side and the monitoring tube body is tightly connected, and the lumen is separated into multiple relatively independent fans Shape cavity.
As a preferred embodiment, the length of the monitoring tube body does not require completely the same, configuration in the monitoring tube body Closure number do not require it is completely the same.
As a preferred embodiment, respectively only one cavity bottom is disposed with closure in monitoring tube body, and each block corresponds to Difference monitoring channel.
As a preferred embodiment, the monitoring tube body is connected two-by-two by well casing connector sleeve.The well casing connector sleeve is adopted It is connected with groove type clip.
As a preferred embodiment, junction is equipped with rubber water-proof circle, the shape of rubber water-proof circle to the monitoring tube body two-by-two The section of shape and the monitoring tube body matches, for preventing from laterally going here and there water between each cavity in the monitoring tube body.
As a preferred embodiment, segmented single-hole multi-channel monitoring well further includes being fixed on the bottom of lowermost end monitoring tube body The cone cell guide head in portion.The guide head selects stainless steel material, and is fixedly connected by well casing connector sleeve with monitoring tube body.
As a preferred embodiment, the separator and block integrated molding that respectively monitoring tube body is configured with it.
It is had the following beneficial effects: using technical solution provided by the invention
(1) the single-hole multi-channel monitoring well construction that present invention innovation proposes segmented is designed using the structure of segmented, Can according to actual needs indefinite extension its monitor depth.
(2) present invention will monitoring shaft design at a plurality of types of standard components, including different length, internal segregation form Tube body is monitored, connection is combined as needed in application, reduces manufacturing cost, improve the flexibility of application.
(3) it in such a way that the integrally formed monitoring tube body for having carried out inner passage closure is segmented connection, effectively obstructs Duration of well flushing and frequency in practical operation are reduced in each internal monitoring channel, and providing to the monitoring of greater depths can It can property.
(4) design for using bottom guide head, using conical stainless steel material as bottom guide head, for fighting well casing Well internal buoyancy when going into the well, facilitates well casing smoothly to go into the well, and improves working efficiency.
Detailed description of the invention
Fig. 1 is the segmented single-hole multi-channel monitoring well structural schematic diagram disclosed in embodiment;
Fig. 2 is the bottom view of the independent segmentation well casing of the segmented single-hole multi-channel monitoring well disclosed in embodiment, packet It includes: (a) monitoring the bottom view of tube body 1, (b) monitor the bottom view of tube body 2, (c) monitor the bottom view of tube body 3, (d) monitor tube body 4 bottom view;
Fig. 3 is the structural schematic diagram of the rubber water-proof circle of the segmented single-hole multi-channel monitoring well disclosed in embodiment;
Marginal data: I~IV- monitors channel;A~D- cavity;1~4- monitors tube body;5 inside block;6- separator;7- Permeable hole;8- well casing connector sleeve;9- rubber water-proof circle;10- stainless steel guide head.
Specific embodiment
As shown in Figure 1, disclosing a kind of segmented single-hole multi-channel monitoring well (hereinafter referred to as monitoring well) in embodiment, mainly Including monitoring tube body, be arranged in intracorporal separator 6 is managed in monitoring, the inside that is arranged in monitoring tube body respective cavities bottom blocks 5, And it is arranged in the stainless steel guide head 10 of bottommost.
Monitoring tube body shares four sections, i.e. the monitoring tube body 1 of head and the tail connection from top to bottom, monitoring tube body 2, monitoring 3 and of tube body Tube body 4 is monitored, each monitoring tube body is cylindrical structure and diameter is equal.
Separator 6 is made of two pieces or four pieces of rectangular partition plates, and a side of each rectangular partition plate is in monitoring tube body Connection is sealed against each other at the heart, another side seal is fixed on the inner wall of monitoring tube body, makes to form four in each monitoring tube body mutually solely Vertical sectorial cavity, i.e. cavity A, cavity B, cavity C, cavity D.Each sectorial cavity size can be equal or unequal, fan The quantity of shape cavity also can be changed, it is only necessary to the angle between the corresponding demarcation plate quantity changed in separator 6 and each demarcation plate ?.Further, the shape of each cavity and layout are also adjustable, can be specifically designed according to monitoring requirements, as long as protecting It is identical to demonstrate,prove each monitoring tubular body composition, after each respective cavities are corresponding up and down.But to reduce manufacture and processing cost And practicability, it is preferable that multiple faces are divided into the inner cavity for monitoring tube body to pass through separator 6 centered on the center for monitoring tube body The equal sectorial cavity of product.
Referring to figs. 1 and 2, it monitors in tube body 1, the length of cavity B~D and monitoring tube body 1 is identical, top It is opened type structure with bottom end, is connected to up and down;The length for being shorter in length than monitoring tube body 1 of cavity A, top are opened type knot Structure, bottom are equipped with internal closure 5, are not connected to up and down.On the side wall of cavity A, inside blocks the position of 5 tops, is equipped with permeable Hole 7, to form monitoring channel I in cavity A.Monitor tube body 2 in, cavity C~D and monitoring tube body 2 length be it is identical, Its top and bottom end are opened type structure, are connected to up and down;The length for being shorter in length than monitoring tube body 2 of cavity A~B, top For opened type structure, bottom is equipped with internal closure 5, is not connected to up and down.On the side wall of cavity B, inside blocks the position of 5 tops It sets, is equipped with permeable hole 7, to form monitoring channel II in cavity B.It monitors in tube body 3, the length of cavity D and monitoring tube body 3 Be it is identical, top and bottom end are opened type structure, up and down be connected to;Cavity A~C is shorter in length than the length of monitoring tube body 3, Its top is opened type structure, and bottom is equipped with internal closure 5, is not connected to up and down.On the side wall of cavity C, inside blocks 5 tops Position, be equipped with permeable hole 7, thus in cavity C formed monitoring channel III.It monitors in tube body 4, the length of each cavity is short In the length of monitoring tube body 4, top is opened type structure, and bottom is equipped with internal closure 5, is not connected to up and down.In the side of cavity D On wall, inside blocks the position of 5 tops, is equipped with permeable hole 7, to form monitoring channel IV in cavity D.
It can be seen that the monitoring well altogether there are four different depth monitoring channel, and monitor channel depth circumferentially according to Secondary variation, convenient for application in practice.It can be seen from figure 1 that the equal length of tube body is monitored in above-described embodiment, to improve application Monitoring shaft design and can also be fabricated to several various criterion length by flexibility, in practical application, can be according to examining on the spot As a result any combination is carried out to monitoring channel, to realize the water quality monitoring of different depth.
In the above-described embodiments, it monitors in tube body 1 and only has the bottom cavity A to block 5 equipped with internal, and monitor in tube body 2~4 Cavity equipped with internal closure 5 gradually increases, i.e., the cavity below every monitoring channel is respectively arranged with internal closure 5.In another implementation In example, it is only necessary to the corresponding cavity in the bottom of the channel will be monitored equipped with internal and block 5, respectively monitor tube body at most only one chamber Body needs to install internal closure 5.Correspondingly, the chamber of monitoring the tube body more than cavity of the monitoring tube body and the monitoring tube body Body area collectively forms a monitoring channel, samples for the underground water to depth where the monitoring tube body, and this design is more Facilitate standardized production process, pays attention to mutually staggering during installation.Certainly, wherein one or more snippets monitoring tube body is uneasy Dress blocks 5 can also be to illustrate the corresponding depth of monitoring tube body without monitoring task, the program can also pass through above-mentioned design The combined application of the monitoring tube body of different length standard is realized.
The permeable hole 7 in each monitoring channel is commonly designed on the corresponding side wall of respective cavities of bottommost monitoring tube body, i.e., The lateral wall of the cavity, can be depending on the depth in the practical water-bearing layer in scene in specific height and the position of the cavity.Permeable hole 7 Aperture be generally 1.25~2.5mm, in multiple rows of arrangement such as rectangle or plum blossom-shaped.
Each monitoring tube body is tightly connected two-by-two by well casing connector sleeve 8, and well casing connector sleeve 8 is connected using groove type clip. Groove type clip connection is a kind of more mature pipe fitting connection type, quick and easy for installation, detachably.Well casing connector sleeve 8 has Body includes sealing rubber ring, clip and bolt.Before installation, slot rolling is carried out in end socket of pipe fitting with channelling machine, the height of sealing rubber ring Higher than the height of pipe and clip, packages clip and tighten bolt.It is limited by clip inner space, cushion rubber is extruded, thus close It is enhanced to seal effect.
As shown in connection with fig. 3, the lateral string water between channel is respectively monitored in order to prevent, that is, prevents monitoring each cavity of tube body the bottom of at Laterally string water, embodiment are equipped with and the monitoring matched rubber water-proof circle 9 in tube body bottom surface, shape also at well casing connector sleeve 8 in portion It is design-related with the quantity of monitoring tube passage.
As a preferred embodiment, the multi-channel testing tube body of segmentation is integrally formed, and manufacturer passes through when making Extruder is disposably extruded into the multi-channel testing pipe of section, and every section all comprising monitoring tube body, intermediate separator and internal closure. Each monitoring interchannel is fully sealed inside this integrally formed monitoring pipe, and globality is strong, facilitates large-scale production.
In order to fight well internal buoyancy when well casing is gone into the well, facilitates well casing smoothly to go into the well, improve working efficiency, the present invention is also supervising The bottom of well logging devises guiding header structure.Guide head uses conical structure, and cone bottom diameter is equal with the monitoring diameter of tube body. The material of the guide head preferably aqueous corrosion of resistance to underground and lower-cost stainless steel material, may be designed in practical application it is solid, Part-solid is hollow, can be specifically designed according to practical application scene, overcomes well internal buoyancy as long as can play, plays guiding Effect.It, specifically can be by outer well pipe connector sleeves 8 by the monitoring tube body of stainless steel guide head 10 and bottommost in embodiment 4 are fixedly connected.
It should be noted that the present invention only improves the structure of single-hole multi-channel monitoring well, specifically go into the well when implementing, It still needs to be mounted in well set, and layering filling seepy material and only according to actual needs in the gap between monitoring well and well set Water material prevents the underground water of four pervious bed positions from mutually ganging up with the connection completely cut off between each monitor layer position.
Although embodiment of the present invention is described in conjunction with attached drawing above, the invention is not limited to above-mentioned Specific embodiments and applications field, above-mentioned specific embodiment are only schematical, directiveness, rather than restricted 's.Those skilled in the art under the enlightenment of this specification, in the range for not departing from the claims in the present invention and being protected In the case where, a variety of forms can also be made, these belong to the column of protection of the invention.

Claims (10)

1. a kind of segmented single-hole multi-channel monitoring well, which is characterized in that tube body is monitored including multistage, during the monitoring tube body is Hollow cylinder structure, and configured with multiple through monitoring tube length direction and phase for the lumen for monitoring tube body to be separated into To the separator of independent cavity;The monitoring tube body connects two-by-two along its length, and correspondence connects each cavity up and down in lumen Pass to the length direction through monitoring well;The monitoring tube body is also configured with the closure for being arranged in cavity bottom, in monitoring well The interior monitoring channel for forming multiple and different monitoring depth, constitutes the monitoring tube body where the bottommost cavity in the monitoring channel There is the permeable hole being connected to the cavity on side wall.
2. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that the separator includes muti-piece square Shape demarcation plate, the side of rectangular partition plate seal against each other connection, and the inner wall sealed connection of the other side and the monitoring tube body will The lumen is separated into multiple relatively independent sectorial cavities.
3. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that the length of the monitoring tube body is not It is required that completely the same, the closure number configured in the monitoring tube body does not require completely the same.
4. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that each to monitor only one in tube body Cavity bottom is disposed with closure, and each block corresponds to different monitoring channels.
5. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that the monitoring tube body passes through well casing Connector sleeve connects two-by-two.
6. segmented single-hole multi-channel monitoring well as claimed in claim 5, which is characterized in that the well casing connector sleeve uses ditch Slot type clamp connection.
7. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that the monitoring tube body connects two-by-two Place is equipped with rubber water-proof circle, and the shape of rubber water-proof circle and the section of the monitoring tube body match, for preventing the monitoring Laterally go here and there water in tube body between each cavity.
8. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that further include being fixed on lowermost end prison The cone cell guide head of the bottom of test tube body.
9. segmented single-hole multi-channel monitoring well as described in claim 1, which is characterized in that the guide head is stainless steel Matter.
10. segmented single-hole multi-channel monitoring well as claimed in any one of claims 1 to 9, which is characterized in that the monitoring Tube body and its internal separator configured block integrated molding.
CN201811148105.6A 2018-09-29 2018-09-29 A kind of segmented single-hole multi-channel monitoring well Pending CN109270235A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109975084A (en) * 2019-04-30 2019-07-05 江苏省环境科学研究院 A kind of SOIL GAS layered sampling device and method
CN110146332A (en) * 2019-04-30 2019-08-20 同济大学 A kind of groundwater monitoring well device and groundwater sampling method
CN110144993A (en) * 2019-04-30 2019-08-20 同济大学 A kind of filter pipe, groundwater monitoring well device and construction method
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 Double-aquifer monitoring well device and construction method thereof
CN113588903A (en) * 2021-07-28 2021-11-02 北京建工环境修复股份有限公司 Underground water beam type monitoring well and well completion method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203259373U (en) * 2012-09-24 2013-10-30 张丽颖 Underground water stratified sampling pipe
CN205035094U (en) * 2015-09-15 2016-02-17 常州市环境科学研究院 Groundwater sampling and prosthetic multi -functional layering well
CN106769206A (en) * 2017-01-17 2017-05-31 上格环境科技(上海)有限公司 A kind of modularization underground water individual well multilayer identifies sampling system
CN207079561U (en) * 2017-06-29 2018-03-09 中国地质调查局水文地质环境地质调查中心 A kind of groundwater monitoring well casing
CN207143907U (en) * 2017-08-27 2018-03-27 山西煜昊源环保科技有限公司 A kind of multi-layered aquifer area individual well layering groundwater monitoring well
CN207148103U (en) * 2017-08-27 2018-03-27 山西煜昊源环保科技有限公司 A kind of gas-liquid separation nested monitoring well for being used to pollute stratum of banketing
CN207148104U (en) * 2017-08-27 2018-03-27 山西煜昊源环保科技有限公司 The single hole stratified soil gas-monitoring well administered for contaminated site
CN209215354U (en) * 2018-09-29 2019-08-06 南京万德斯环保科技股份有限公司 A kind of segmented single-hole multi-channel monitoring well

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203259373U (en) * 2012-09-24 2013-10-30 张丽颖 Underground water stratified sampling pipe
CN205035094U (en) * 2015-09-15 2016-02-17 常州市环境科学研究院 Groundwater sampling and prosthetic multi -functional layering well
CN106769206A (en) * 2017-01-17 2017-05-31 上格环境科技(上海)有限公司 A kind of modularization underground water individual well multilayer identifies sampling system
CN207079561U (en) * 2017-06-29 2018-03-09 中国地质调查局水文地质环境地质调查中心 A kind of groundwater monitoring well casing
CN207143907U (en) * 2017-08-27 2018-03-27 山西煜昊源环保科技有限公司 A kind of multi-layered aquifer area individual well layering groundwater monitoring well
CN207148103U (en) * 2017-08-27 2018-03-27 山西煜昊源环保科技有限公司 A kind of gas-liquid separation nested monitoring well for being used to pollute stratum of banketing
CN207148104U (en) * 2017-08-27 2018-03-27 山西煜昊源环保科技有限公司 The single hole stratified soil gas-monitoring well administered for contaminated site
CN209215354U (en) * 2018-09-29 2019-08-06 南京万德斯环保科技股份有限公司 A kind of segmented single-hole multi-channel monitoring well

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109975084A (en) * 2019-04-30 2019-07-05 江苏省环境科学研究院 A kind of SOIL GAS layered sampling device and method
CN110146332A (en) * 2019-04-30 2019-08-20 同济大学 A kind of groundwater monitoring well device and groundwater sampling method
CN110144993A (en) * 2019-04-30 2019-08-20 同济大学 A kind of filter pipe, groundwater monitoring well device and construction method
CN109975084B (en) * 2019-04-30 2024-03-22 江苏省环境科学研究院 Soil gas layered sampling device and method
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 Double-aquifer monitoring well device and construction method thereof
CN113588903A (en) * 2021-07-28 2021-11-02 北京建工环境修复股份有限公司 Underground water beam type monitoring well and well completion method

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