CN211819295U - Underground water monitoring well structure capable of intensively removing silt - Google Patents
Underground water monitoring well structure capable of intensively removing silt Download PDFInfo
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- CN211819295U CN211819295U CN201922415771.8U CN201922415771U CN211819295U CN 211819295 U CN211819295 U CN 211819295U CN 201922415771 U CN201922415771 U CN 201922415771U CN 211819295 U CN211819295 U CN 211819295U
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Abstract
The utility model discloses a groundwater monitoring well structure capable of intensively removing silt, which comprises a well pipe component arranged in a water hole, and is characterized in that the well pipe component sequentially comprises an upper well cover, a first white pipe, a perforated pipe, a second white pipe and a lower well cover from top to bottom, the pipe wall of the perforated pipe is provided with screen seams, and the second white pipe is a silt sinking section; the pipe wall is externally provided with a water-isolating ring, the depth of the upper end of the water-isolating ring from the ground is a preset monitoring depth, graded filter materials are filled between the upper part of the water-isolating ring and the pipe wall of the well pipe component and the hole wall of the water hole, and seepage-proofing fillers are filled at the upper part of the graded filter materials close to the ground; the bottom of the well pipe component is provided with a silt collecting structure, and the top of the well pipe component is provided with a pulling structure for pulling up the silt collecting structure. The utility model discloses can concentrate the silt particle of underground water in the well casing to clear up the groundwater monitoring well structure of well casing, clear up the silt particle comparatively thoroughly, and risk such as no jam, the silt particle of clearing up out is great with the solid content of water mixture, does not occupy too much space, convenient processing.
Description
Technical Field
The utility model relates to a can concentrate groundwater monitoring well structure of cleaing away silt particle belongs to environmental monitoring well technical field.
Background
In engineering fields such as site environment investigation and site remediation, the environmental quality condition of groundwater can often be known through building groundwater monitoring well, because the well construction technology limits to and some areas contain mucky soil layer, often when building the well, have more silt to gush into in the well.
The existing method cannot well clean the silt in the monitoring well, only can extract the silt from the well in a well washing or extracting mode, but the manual well washing or extracting mode is difficult to clean the silt, and wastes time and labor; the mechanical extraction mode is used for cleaning the silt in the well, so that pipelines and equipment are easily blocked, and energy is consumed. And most of the pumped mud-water mixture is water, so the volume is large and the treatment is difficult.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the prior art clearance mud sand in the monitoring well, the problem of the clearance unclean and waste time and energy.
In order to solve the problems, the utility model provides a groundwater monitoring well structure capable of intensively removing silt, which comprises a well pipe component arranged in a water hole, and is characterized in that the well pipe component sequentially comprises an upper well cover, a first white pipe, a perforated pipe, a second white pipe and a lower well cover from top to bottom, wherein the pipe wall of the perforated pipe is provided with screen seams, and the second white pipe is a silt sinking section and is positioned below the monitoring depth; the pipe wall is externally provided with a water-isolating ring, the depth of the upper end of the water-isolating ring from the ground is a preset monitoring depth, graded filter materials are filled between the upper part of the water-isolating ring and the pipe wall of the well pipe component and the hole wall of the water hole, and seepage-proofing fillers are filled at the upper part of the graded filter materials close to the ground; the bottom of the well pipe component is provided with a silt collecting structure, and the top of the well pipe component is provided with a pulling structure for pulling up the silt collecting structure.
Preferably, the silt collecting structure comprises silt collecting pipes and spare silt collecting pipes which are nested with each other. The spare silt collecting pipe is sleeved outside the silt collecting pipe, the spare silt collecting pipe can be provided with a plurality of silt collecting pipes, and silt is further removed from the monitoring well with more silt or slow sedimentation speed. The silt collecting pipe is slightly smaller than the standby silt collecting pipe, and the diameters of funnel type silt collecting openings of the silt collecting pipes and the standby silt collecting pipes are slightly smaller than the inner diameter of a well pipe, so that the well mouth can be smoothly lifted.
More preferably, the top of the silt collecting pipe and the top of the spare silt collecting pipe are funnel type silt collecting openings, and weighting blocks are arranged at the bottoms of the silt collecting pipe and the spare silt collecting pipe. The funnel-shaped silt collecting opening can collect silt, and the weighting block is made of materials which are high in using density, cannot cause underground water pollution and are acid and alkali resistant.
More preferably, the upper part of the sludge collecting pipe is provided with a funnel-shaped non-return baffle. The non-return baffle can ensure that the silt in the silt collecting pipe is not easy to surge and overflow when being lifted.
More preferably, the pulling-up structure comprises a first pulling rope and a second pulling rope which are respectively connected with the silt collecting pipe and the standby silt collecting pipe, and the first pulling rope and the second pulling rope are respectively connected with a fixed hook hanging ring fixed at the inner top of the upper well cover through a first fixed hook and a second fixed hook. The structure of drawing to rise uses firm tough fine rule and metal hook, and the accessible draws to rise the structure after the well construction and brings out the silt collecting pipe or reserve silt collecting pipe from the well head.
Preferably, the screen cuts on the pipe wall of the perforated pipe are distributed in a preset monitoring depth section.
The water-proof ring is made of a water-proof material capable of expanding when encountering water, is fixedly installed at a preset monitoring depth, and starts to expand when encountering water when the well pipe enters the water hole, so that the underground water between the well pipe and the wall of the well hole and the underground water between the upper part and the lower part of the well pipe are blocked.
Filling graded filter materials into the perforated pipe sections to filter underground water, wherein the lower end of the perforated pipe section is the top end of a water-resisting ring, and the upper end of the perforated pipe section reaches a specified filling depth; the anti-seepage filler is filled above the graded filter material until the upper part of the graded filter material is slightly higher than the ground, so that rainwater on the ground surface is prevented from permeating along the hole wall; the lower part of the water isolation ring is slowly filled with fluid such as underground original underground water and the like.
The well pipe component, the water-resisting structure, the silt collecting structure and the pulling-up structure are made of materials which are acid-alkali resistant and not easy to corrode.
The utility model discloses can concentrate the silt particle of underground water in the well casing to clear up the groundwater monitoring well structure of well casing, this structure construction and simple to use compare with the traditional well construction method and do not increase power consumption and manpower, clear up the silt particle comparatively thoroughly, and risk such as no jam, the silt particle of clearing up out is great with the solid content of water mixture, does not occupy too much space, convenient processing.
Drawings
Fig. 1 is a schematic view of a groundwater monitoring well provided by the present invention;
FIG. 2 is a cross-sectional view of the interior of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is a partially enlarged view of a portion B in fig. 2.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1-4, for the groundwater monitoring well structure capable of intensively removing silt provided by the present invention, the groundwater monitoring well structure comprises a well pipe component arranged in a water hole, the well pipe component comprises an upper well cover 1, a first white pipe 2, a perforated pipe 3, a second white pipe 4 and a lower well cover 5 from top to bottom in sequence, a screen seam 7 is arranged on a pipe wall 6 of the perforated pipe 3, and the second white pipe 4 is a silt sinking section and is located below a monitoring depth; a water-proof ring 8 is arranged outside the pipe wall 6, the depth of the upper end of the water-proof ring 8 from the ground is a preset monitoring depth, graded filter materials 11 are filled between the upper part of the water-proof ring 8 and the pipe wall 6 of the well pipe component and the hole wall of the water hole, and anti-seepage fillers 10 are filled at the upper part of the graded filter materials 11 close to the ground; the bottom of the well pipe component is provided with a silt collecting structure, and the top of the well pipe component is provided with a pulling structure for pulling up the silt collecting structure.
The sludge collecting structure comprises a sludge collecting pipe 13 and a spare sludge collecting pipe 14 which are nested with each other. The spare silt collecting pipe is sleeved outside the silt collecting pipe, the spare silt collecting pipe can be provided with a plurality of silt collecting pipes, and silt is further removed from the monitoring well with more silt or slow sedimentation speed. The maximum diameter of the spare silt collecting pipe 14 is slightly smaller than the diameter of the well pipe so as to ensure that the spare silt collecting pipe can smoothly move up and down in the well pipe; the diameter of collection silt pipe 13 slightly is less than the diameter of reserve collection silt pipe 14 to guarantee to embolia reserve collection silt pipe 14 and avoid excessively overlapping firmly, if set up a plurality of reserve collection silt pipes 14, must set up the diameter, inlay according to the layer cover of order.
The top of the silt collecting pipe 13 and the top of the spare silt collecting pipe 14 are funnel type silt collecting openings 16, and the bottom of the silt collecting pipe is provided with a weighting block 15. The funnel-shaped silt collecting opening can collect silt, and the weighting block is made of materials which are high in using density, cannot cause underground water pollution and are acid and alkali resistant.
The upper part of the silt collecting pipe 13 is provided with a funnel-shaped non-return baffle 17. The non-return baffle 17 can ensure that the silt in the silt collecting pipe is not easy to surge and overflow when being lifted.
The pulling-up structure comprises a first pulling rope 18 and a second pulling rope 20 which are respectively connected with the silt collecting pipe 13 and the spare silt collecting pipe 14, and the first pulling rope 18 and the second pulling rope 20 are respectively connected with a fixed hook hanging ring 12 fixed at the inner top of the upper well cover 1 through a first fixed hook 19 and a second fixed hook 21. The structure of drawing to rise uses firm tough fine rule and metal hook, and the accessible draws to rise the structure after the well construction and brings out the silt collecting pipe or reserve silt collecting pipe from the well head.
The screen cuts 7 on the pipe wall 6 of the perforated pipe 3 are distributed in a preset monitoring depth section.
The water-proof ring is made of a water-stop material capable of expanding when encountering water, is fixedly installed at a preset monitoring depth, and starts to expand when encountering water when the well pipe enters the water hole, so that the underground water between the well pipe and the wall of the well hole and the underground water between the upper part and the lower part of the well pipe are blocked.
Filling graded filter materials into the perforated pipe sections to filter underground water, wherein the lower end of the perforated pipe section is the top end of a water-resisting ring, and the upper end of the perforated pipe section reaches a specified filling depth; the anti-seepage filler is filled above the graded filter material until the upper part of the graded filter material is slightly higher than the ground, so that rainwater on the ground surface is prevented from permeating along the hole wall; the lower part of the water isolation ring is slowly filled with fluid such as underground original underground water and the like.
The well pipe component, the water-resisting structure, the silt collecting structure and the pulling-up structure are made of materials which are acid-alkali resistant and not easy to corrode.
The construction and use method of the underground water monitoring well structure comprises the following steps:
step 1: installing and connecting well pipe component, water-resisting structure, silt collecting structure and lifting structure of monitoring well
Step 1.1: the well lid 5, two 4, the floral tube 3, the white pipe 2 under the installation are connected according to the order from the bottom up, and water proof ring 8 is fixed in appointed monitoring degree of depth department, and the installation is not gone up to well lid 1 for the time. The components can be connected by adopting a thread mode and the like;
step 1.2: fixedly connecting a second traction rope 20 and a spare silt collecting pipe 14, placing the spare silt collecting pipe 14 into the bottom of the well pipe by virtue of the second traction rope 20, connecting the second traction rope 20 and a second fixed hook 21 in a direction that a weight 15 faces downwards, and firmly hanging the second fixed hook 21 on a second fixed hook hanging ring 12; or the pulling rope can be fixed in other ways without affecting the sealing of the upper well cover;
step 1.3: fixedly connecting a first traction rope 18 and a first silt collecting pipe 13, putting the first silt collecting pipe 13 into the bottom of a well pipe by virtue of the first traction rope 18, downwards sleeving a weight 15 into a standby silt collecting pipe 14, connecting the first traction rope 18 and a first fixed hook 19, and firmly hanging the first fixed hook 19 on a first fixed hook hanging ring 12;
step 1.4: installing a well cover 1;
step 2: construction of monitoring well
Step 2.1: using mechanical equipment to vertically drill, and building a well hole until the well hole reaches a specified aperture and a specified depth, wherein the well hole depth comprises the length of a desilting pipe section, namely a white pipe II 4, and the specified monitoring depth is generally selected to be added by 0.5 m;
step 2.2: and slowly putting the well pipe which is connected and installed into the well pipe to ensure that the well pipe is vertical, and after putting into the well pipe, quickly absorbing water and expanding by the water-resisting ring 8 fixed outside the pipe wall 6 to block the communication of the underground water between the pipe wall and the hole wall. The water-proof ring can use water-swelling water-stop strips or water-swelling rubber;
step 2.3: filling graded filter materials 11 and anti-seepage fillers 10 between the well pipe wall 6 and the well hole wall 9 in sequence to a specified depth respectively, wherein the filling bottom end of the graded filter materials 11 is a water-resisting ring 8, and the lower part of the water-resisting ring 8 does not need to be filled with fillers;
and step 3: use of silt-collecting structure
Step 3.1: after the well is built, standing for one day, slowly precipitating and concentrating silt and silt in the well into the silt collecting pipe 13, opening the upper well cover 1, taking down the first fixing hook 19, slowly and uniformly pulling up the silt collecting pipe 13 by using the first pulling rope 18 until the silt collecting pipe 13 is lifted out of the well mouth, and pouring and collecting the silt or silt in the silt;
step 3.2: if a small amount of suspended silt is still present in the groundwater in the well, step 3.1 may be repeated for the spare silt collecting pipe 14 after one day, further reducing the amount of silt in the well.
Because of the existence of the weighting block 15, the silt collecting pipe 13 and the standby silt collecting pipe 14 are always positioned at the bottom of the well pipe from the time of well construction, and a plurality of standby silt collecting pipes 14 can be arranged for monitoring wells with more silt and sand or more silt or slow sedimentation speed, namely step 3.2 can be repeated for further desilting.
Claims (6)
1. A groundwater monitoring well structure capable of intensively removing silt comprises a well pipe component arranged in a water hole, and is characterized in that the well pipe component sequentially comprises an upper well cover (1), a first white pipe (2), a perforated pipe (3), a second white pipe (4) and a lower well cover (5) from top to bottom, a screen joint (7) is formed on a pipe wall (6) of the perforated pipe (3), and the second white pipe (4) is a silt sinking section and is positioned below a monitoring depth; a water-isolating ring (8) is arranged outside the pipe wall (6), the depth of the upper end of the water-isolating ring (8) from the ground is a preset monitoring depth, graded filter materials (11) are filled between the upper part of the water-isolating ring (8) and the pipe wall (6) of the well pipe component and the hole wall of the water hole, and anti-seepage fillers (10) are filled at the upper part of the graded filter materials (11) close to the ground; the bottom of the well pipe component is provided with a silt collecting structure, and the top of the well pipe component is provided with a pulling structure for pulling up the silt collecting structure.
2. A groundwater monitoring well structure for centralized silt removal as claimed in claim 1, wherein the silt collecting structure comprises a silt collecting pipe (13) and a spare silt collecting pipe (14) which are nested with each other.
3. A groundwater monitoring well structure capable of removing silt centrally as claimed in claim 2, wherein the silt collecting pipe (13) and the spare silt collecting pipe (14) are provided with a funnel type silt collecting port (16) at the top and a weighting block (15) at the bottom.
4. A groundwater monitoring well structure capable of removing mud and sand concentratedly as claimed in claim 2, wherein a funnel-shaped non-return baffle (17) is provided at an upper portion of the mud collecting pipe (13).
5. A groundwater monitoring well structure capable of removing silt intensively according to claim 2, wherein the pulling structure comprises a first pulling rope (18) and a second pulling rope (20) which are respectively connected with the silt collecting pipe (13) and the spare silt collecting pipe (14), and the first pulling rope (18) and the second pulling rope (20) are respectively connected with a fixed hook hanging ring (12) fixed at the inner top of the upper well cover (1) through a first fixed hook (19) and a second fixed hook (21).
6. A groundwater monitoring well structure for centralized removal of sand and mud as claimed in claim 1, wherein the screen cuts (7) on the pipe wall (6) of the perforated pipe (3) are distributed in a predetermined monitoring depth section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922415771.8U CN211819295U (en) | 2019-12-27 | 2019-12-27 | Underground water monitoring well structure capable of intensively removing silt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922415771.8U CN211819295U (en) | 2019-12-27 | 2019-12-27 | Underground water monitoring well structure capable of intensively removing silt |
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| CN211819295U true CN211819295U (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983428A (en) * | 2021-02-20 | 2021-06-18 | 上海市政工程设计研究总院（集团）有限公司 | Method for building underground water environment monitoring well |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983428A (en) * | 2021-02-20 | 2021-06-18 | 上海市政工程设计研究总院（集团）有限公司 | Method for building underground water environment monitoring well |
| CN112983428B (en) * | 2021-02-20 | 2023-03-14 | 上海市政工程设计研究总院（集团）有限公司 | Method for building underground water environment monitoring well |
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