CN115305894A - Underground water layered water stop structure, surveying device and water stop method - Google Patents

Abstract

The invention provides a groundwater layered water stopping structure, a surveying device and a water stopping method, and relates to the technical field of geological exploration. The collecting pipe is provided with a first water inlet hole, and the first water inlet hole can supply external underground water to the collecting pipe. The first isolation ring is sleeved on the outer wall of the collecting pipe and can be inflated to isolate a target water collecting area. The first suction pipe is communicated with the collection pipe and is used for being connected with a water pumping device so as to pump the underground water in the collection pipe. The operator can put the collection pipe down to the underground layer that punches, aerifys target groundwater to first cage. Inside water below the first cage washer flowed into first body through first inlet opening, operating personnel can use pumping device to first suction tube suction, took the groundwater of the target area in the first body out earlier, and the sampling is convenient.

Description

Underground water layered water stop structure, surveying device and water stop method

Technical Field

The invention relates to the technical field of geological exploration, in particular to a groundwater layered water stopping structure, a surveying device and a water stopping method.

Background

Hydrogeological exploration refers to hydrogeological investigation and research work on a target area, and aims to master the layering and hydrogeological characteristics of underground water, including water level, water temperature, water quality, chemical composition, mineral content and the like, and provide a basis for design and construction of underground engineering construction such as building foundation pits, tunnel engineering, pile foundations, basements and the like. The current layered water stopping mode of underground water generally comprises clay ball water stopping, cement slurry water stopping, tung oil lime water stopping, cow leather water stopping, gunny bag water stopping, kelp water stopping and the like. Clay ball stagnant water, cement stagnant water, tung oil lime stagnant water mode such as, stagnant water material is thrown in from the ground outside the sleeve pipe, and the input degree of depth position randomness is big, and very difficult accurate control position that sinks, stagnant water effect and success rate are lower. The method is generally used for plugging materials for stopping water for a long time, the kelp and the like are soaked for a long time and are rotted to release impurities, clay balls, cement, tung oil lime and the like are easy to release other mineral substances, the water quality is greatly polluted, and uncontaminated water samples cannot be collected, so that the difficulty in water quality evaluation is high.

Disclosure of Invention

Therefore, the underground water layered water stop structure, the surveying device and the water stop method are needed to solve the problems that the existing water stop device cannot directionally block a stratum with a specified depth, and a water sample with a target depth is adopted, so that the difficulty in observing the water level and adopting the water sample to evaluate the water quality is high.

The invention provides a layered water stop structure for underground water, which comprises:

the collecting pipe is provided with a first water inlet hole, and external underground water can flow into the collecting pipe through the first water inlet hole;

the first isolation ring is sleeved on the outer wall of the collection pipe and can be inflated and expanded to isolate a target water collection area;

the first suction pipe is communicated with the collection pipe and is used for being connected with a water pumping device so as to pump the underground water in the collection pipe.

Above-mentioned stagnant water structure can be transferred to the stratum underground that punches and finish, and the first trachea that stagnant water structure includes can insert the gas charging equipment, aerifys first cage washer to make the expansion of first cage washer, keep apart the water more than first cage washer. Inside water below the first enclosure flowed into first body through first inlet opening, first body stretched out more than ground, and operating personnel can use pumping device to first suction tube suction, takes out the mixed water in the first body earlier, treats to take out to a period of time after, and groundwater below the first enclosure can be taken out to supply operating personnel to take the water sample to carry out water quality testing. Operating personnel also can be through adjusting the degree of depth and the degree of depth position of cage of first body bottom of transferring, and the water level of appointed horizon groundwater is measured to the custom, gathers the water sample that corresponds degree of depth horizon. The underground water level monitoring system has the functions of extracting underground water in a target area at one time, observing water level and collecting underground water samples in corresponding layers.

In one embodiment, the water stopping structure further comprises a first partition plate, a second partition ring and a second suction pipe, the first partition plate is arranged inside the collecting pipe to separate the inside of the collecting pipe into a first chamber and a second chamber, the collecting pipe is provided with a second water inlet hole, the second water inlet hole is communicated with the second chamber and the outside, the first water inlet hole is communicated with the first chamber and the outside, the second water inlet hole is located between the first partition ring and the second partition ring, the first water inlet hole is located on the side, opposite to the second partition ring, of the first partition ring, the second suction pipe is communicated with the second chamber, and the first suction pipe penetrates through the first partition plate and is communicated with the first chamber. The underground water level monitoring system has the functions of extracting the underground water of two target areas at one time, observing the water level and collecting the underground water sample of the corresponding layer.

In one embodiment, the water stopping structure further includes a second partition plate, a third partition ring and a third suction tube, the second partition plate is disposed in the second chamber to partition the second chamber into a third chamber and a fourth chamber, the third chamber is located between the first chamber and the fourth chamber, the collecting tube has a third water inlet, the third water inlet is communicated with the fourth chamber and the outside, the second water inlet is communicated with the third chamber and the outside, the third water inlet is located between the second partition ring and the third partition ring, the first suction tube sequentially penetrates through the second partition plate and the first partition plate and is communicated with the first chamber, the second suction tube penetrates through the second partition plate and is communicated with the third chamber, and the third suction tube is communicated with the fourth chamber. The underground water level monitoring system has the functions of extracting underground water in three target areas at one time, observing water level and collecting underground water samples in corresponding layers.

In one embodiment, the collecting tube is provided with a strainer covering at least one of the first water inlet hole, the second water inlet hole and the third water inlet hole to limit foreign substances from entering the inside of the collecting tube.

In one embodiment, the collection tube comprises a first tube, a second tube, and a first connector, wherein the first tube and the second tube are detachably connected to two ends of the first connector; the first water inlet hole is formed in the first pipe body, the second water inlet hole is formed in the second pipe body, and the first connecting piece is provided with the first partition plate.

In one embodiment, the collection tube comprises a first tube, a second tube, a third tube, a first connector and a second connector, wherein the first tube and the second tube are detachably connected to two ends of the first connector, and the second tube and the third tube are detachably connected to two ends of the second connector; the first water inlet hole, the second water inlet hole and the third water inlet hole are formed in the first pipe body, the second pipe body and the third pipe body respectively, and the first connecting piece and the second connecting piece are provided with the first partition plate and the second partition plate respectively.

In one embodiment, the water stopping structure further comprises an extension tube body, the distal end of the extension tube body is detachably connected with the proximal end of the collection tube, and the proximal end of the extension tube body can be detachably connected with the distal end of another extension tube body.

In one embodiment, the water stopping structure further comprises a fourth isolation ring, the fourth isolation ring is sleeved on the collection pipe, and the fourth isolation ring is positioned on one side, opposite to the first isolation ring, of the first water inlet hole.

The invention also provides a surveying device, which comprises shooting equipment, a water suction pump and the underground water layered water stop structure, wherein the water suction pump is used for pumping the underground water and the slurry in the collecting pipe and washing the underground water and the slurry with clean water, so that the water in the pipe becomes clear and transparent, the shooting equipment can extend into the collecting pipe, the inside of the collecting pipe has no turbid water quality or the slurry can influence the detection of the shooting equipment, the underwater visibility is obviously improved, and the shooting equipment is convenient for clearly detecting the rock-soil layer at the far end of the collecting pipe so as to be used for surveying operators to detect and know the properties such as underground rock-soil cracks, weathering conditions and the like.

The invention also provides a water stopping method, which is realized by using the underground water layered water stopping structure and through the following steps:

the far end of the collecting pipe extends into a pre-drilled well, so that underground water in the well flows into the collecting pipe through the first water inlet hole, and the near end of the collecting pipe extends out of the ground;

inflating the first isolation ring to enable the first isolation ring to expand to abut against the well wall to isolate underground water;

the groundwater inside the collection tube is continuously sucked using the first suction tube.

Drawings

FIG. 1 is a schematic structural diagram of an underground water layered water stopping structure according to an embodiment of the present invention in application;

FIG. 2 is a schematic structural diagram of an embodiment of the groundwater layered water stopping structure according to the invention;

FIG. 3 is a schematic structural view of another embodiment of the groundwater layered water stopping structure according to the invention;

FIG. 4 is a schematic view of an extension tube according to the present invention;

FIG. 5 is a schematic structural view of another embodiment of the groundwater layered water stopping structure according to the invention;

FIG. 6 is a schematic structural view of a first connecting member according to the present invention;

FIG. 7 is a schematic structural view of another embodiment of the groundwater layered water stopping structure according to the invention;

fig. 8 is a schematic structural view of the groundwater layered water stopping structure and the shooting device of the present invention when used in combination.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a groundwater layered water stop structure; 11. a collection tube; 111. a first pipe body; 1111. a first water inlet hole; 112. a second tube body; 1121. a second stud; 1122. a second water inlet hole; 113. a first connecting member; 1131. a first separator; 1132. a screw hole; 114. a first suction duct; 115. a second suction duct; 116. a third tube; 117. a second connecting member; 118. a third suction duct; 12. a spacer; 121. a first cage; 122. a first air pipe; 123. a second cage; 124. a second air pipe; 125. a third cage; 126. a fourth cage; 127. a third air pipe; 13. a suction member; 14. an extension pipe body; 141. an extended internal thread; 142. an extension stud; 15. a sealing cover; 16. an inflation tube;

2. a water pump;

3. an inflation device;

4. ground water;

5. a photographing device; 51. a camera; 52. a data line; 53. the tube is driven.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is apparent that the specific details set forth in the following description are merely exemplary of the invention, which can be practiced in many other embodiments that depart from the specific details disclosed herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It is defined that all structures of the present invention have a proximal end at the end near the surface and a distal end at the end far from the surface and near the deep underground layer. It is to be understood that this definition is only for convenience of description and understanding and does not limit the present invention.

Referring to fig. 1, the present invention provides a surveying device, which can isolate the groundwater 4 at a target depth to observe the water level and collect a water sample, so as to analyze the water quality, and is convenient for operators to take water in layers, thereby facilitating the simplification of the work.

Before sampling, the surface is drilled using a drilling rig, the depth of the well at least exceeds the target depth, and the formation and aquifer structure are known. The survey device is placed into the well, the depth of the survey device is measured while the survey device is placed until the survey device reaches the target depth, the survey device is used for filling air and pressing a plugging water-resisting stratum, the underground water is isolated in a layered mode, and water taking or observation work is carried out on the underground water 4 of the target depth.

Survey the device and include groundwater layering stagnant water structure 1, shooting equipment, suction pump 2 and inflation equipment 3, wherein, suction pump 2 connects groundwater layering stagnant water structure 1, and suction pump 2 and inflation equipment 3 all place subaerial work. After the drilling work is finished, firstly the underground water layered water stop structure 1 is placed into the well to the target depth, then the water suction pump 2 is opened, the underground water layered water stop structure 1 is sucked, and the underground water 4 at the target depth is sucked to be sampled.

Referring to fig. 1, the groundwater layered water stopping structure 1 includes a collection pipe 11, a partition 12 and a suction piece 13, the partition 12 is sleeved on the outer wall of the collection pipe 11, one end of the suction piece 13 extends into the collection pipe 11, and the other end of the suction piece 13 is connected with a water suction pump 2.

The diameter of the collecting pipe 11 is smaller than that of the wellhead, one end of the collecting pipe 11 is used for extending into the well, and the other end of the collecting pipe 11 can extend out of the ground. The lateral wall of the collecting pipe 11 is provided with a water inlet 15, and underground water in the well can enter the collecting pipe 11 from the outside of the collecting pipe 11 through the water inlet 15. Under the drive of the water suction pump 2, the suction piece 13 can suck the underground water inside the collection pipe 11 to the ground for detection.

It should be noted that the upper and lower sides of the water inlet 15 are both provided with the partition 12, the partitions 12 on both sides separate the groundwater in the well into three regions, and the groundwater layered water stop structure 1 of the embodiment shown in fig. 1 can collect the groundwater between the partitions 12 on the upper and lower sides. The user can move the height of the collecting pipe 11 up and down or adjust the relative position of the upper and lower spacers 12, thereby adjusting the area for collecting groundwater.

Any side of the water inlet hole 15 is provided with a plurality of isolating pieces 12, and the isolating pieces 12 have a better water isolating effect relative to one isolating piece 12, so that underground water in different areas can be effectively prevented from being mixed. Of course, referring to fig. 2, in other embodiments, the number of spacers 12 of the water inlet 15 on either side may be one.

The plurality of separators 12 of the embodiment shown in fig. 1 are connected in series by using one inflation tube 16, the inflation tube 16 is connected with the inflation device 3 on the ground, the inflation device 3 can inflate the plurality of separators 12 at one time, and the plurality of separators 12 are inflated simultaneously to isolate the underground water.

The far end of the collecting pipe 11 is closed, so that groundwater in other areas is prevented from entering the collecting pipe 11 from the far end of the collecting pipe 11, and is mixed with groundwater in a target area to affect water quality detection.

Referring to fig. 2, the distal end of collection tube 11 may be threadably coupled to a sealing cap 15. When using groundwater layered stop structure 1 to collect water, sealing cap 15 may be coupled to the distal end of collection tube 11 to close collection tube 11. When shooting equipment needs to extend into the collecting pipe 11 to detect the rock-soil layer at the far end of the collecting pipe 11 (see fig. 8), the sealing cover 15 can be detached, and the use is convenient.

There are many embodiments of the groundwater layered water stopping structure 1, some embodiments may extract groundwater 4 of one target area at a time, and some embodiments may extract groundwater 4 of a plurality of target areas at a time.

Referring to fig. 2 and 3, the groundwater layered water stopping structure 1 of the embodiment shown in fig. 2 and 3 is capable of extracting groundwater 4 of one target area at a time. The collection tube of this embodiment comprises one tube, namely the first tube 111.

The groundwater layering water stopping structure 1 of the embodiment shown in fig. 2 further includes a first isolation ring 121, a fourth isolation ring 126 and a first suction pipe 114, the first isolation ring 121 and the fourth isolation ring 126 are all sleeved on the outer wall of the first pipe 111, and the distal end of the first suction pipe 114 extends into the first pipe 111.

First body 111 is both ends open-ended cavity tubulose, and first inlet opening 1111 has been seted up to the lateral wall of first body 111, and first inlet opening 1111 can supply groundwater 4 to enter into to first body 111 inside. The proximal end of the first suction pipe 114 communicates with the suction pump 2 to suck the groundwater 4 in the first pipe body 111 up through the first suction pipe 114 for sampling.

The first pipe 111 is provided with a filter (not shown) covering the first water inlet 1111 to limit impurities in the groundwater 4 from entering the first pipe 111 through the first water inlet 1111. The groundwater 4 inside the first pipe 111 has less impurities, and the water quality detection is more accurate.

The material of the first tube 111 may be a conventional PVC rigid plastic tube, or may be an anti-corrosion metal material, which is not limited herein.

First spacing collar 121 and fourth spacing collar 126 locate the upper and lower both sides of first body 111, first spacing collar 121 and fourth spacing collar 126 are established ties through first trachea 122, inflation equipment 3 is connected to the near-end of first trachea 122, inflation equipment 3 can aerify first spacing collar 121 and fourth spacing collar 126 simultaneously through first trachea 122, make first spacing collar 121 and fourth spacing collar 126 inflation, until first spacing collar 121 and fourth spacing collar 126 and the all-round laminating of the wall of a well, with the groundwater isolation in the well. The inflating device 3 may be an inflator or a high-pressure gas cylinder, and the high-pressure gas cylinder may be directly connected to the first gas pipe 122 to inflate the first isolation ring 121 without an additional connection to an external driving source.

After the water production is completed, the first isolation ring 121 and the fourth isolation ring 126 can be deflated and contracted through the first air pipe 122, so that the first pipe body 111 can be taken out of the well quickly.

The first isolation ring 121 and the fourth isolation ring 126 can be integrated with the first pipe body 111 through hot pressing, so that the sealing performance between the first isolation ring 121, the fourth isolation ring 126 and the first pipe body 111 is ensured, and water seepage is avoided. In other embodiments, the first isolation ring 121 and the fourth isolation ring 126 may be connected to the first pipe 111 by other methods, which are not limited herein.

After the groundwater 4 is isolated by the first isolation ring 121 and the fourth isolation ring 126, the groundwater between the first isolation ring 121 and the fourth isolation ring 126 can flow into the first pipe body 111 through the first water inlet 1111 and is sucked to the ground through the first suction pipe 114.

Referring to fig. 3, in another embodiment, the groundwater layered water stopping structure 1 may be provided with only the first isolation ring 121, the first isolation ring 121 is sleeved on the outer wall of the first pipe 111, and the first isolation ring 121 is located between the first water inlet 1111 and the proximal end of the first pipe 111. This embodiment has a larger area for groundwater collection than the embodiment shown in fig. 2 and is generally suitable for groundwater collection at the lowest level in a well.

It should be noted that the groundwater 4 in the target area and the groundwater 4 in the non-target area are mixed together just after the drilling is completed. At this time, the first pipe 111 is arranged underground until the first isolation ring 121 is located in the target area, and then the first isolation ring 121 is inflated to isolate the target area from the non-target area. The mixed water of the target region enters the first pipe 111 through the first water inlet 1111 of the first pipe 111. The near end of the first pipe body 111 is connected with a water suction pump 2, the groundwater 4 in the first pipe body 111 is pumped, the water which is just pumped is the mixed groundwater 4 of the target area and the non-target area, after the pumping of the mixed groundwater 4 is finished, the groundwater 4 of the soil layer corresponding to the target area can gradually permeate into the target area, and the water pumped behind the water suction pump 2 is the groundwater 4 of the soil layer corresponding to the target area.

In order to accurately lock the water pumped by the water pump as the underground water 4 of the soil layer corresponding to the target area, the measurement can be carried out in the following way:

the depth of the well is defined as H and the radius is defined as R. And the depth of the first isolation ring 121 below the well is H, the underground mixed water capacity of a target area below the first isolation ring 121 is V =2 pi R (H-H).

The water pumped by the water pump 2 can be contained by a container with volume scales, and when the volume of the water contained by the container exceeds V, the water pumped by the water pump 2 is the underground water 4 of the soil layer corresponding to the target area.

The groundwater layering stagnant water structure 1 is still including extending body 14, and the length that extends body 14 and be used for the first body 111 of extension to make first body 111 can descend to deeper position in the well.

The extension pipe body 14 can be connected with the first pipe body 111 by threads, so that the extension pipe body 14 is connected with the first pipe body 111 with good sealing performance, stable connection and quick and convenient disassembly and assembly. Of course, the extension pipe 14 and the first pipe 111 may be connected in other detachable manners, which are not limited herein.

The proximal end of the first pipe 111 is provided with a first stud 1113, and the first stud 1113 is used for being screwed with the extension pipe 14 to extend the length of the first pipe 111.

Referring to fig. 4, one end of the extension pipe body 14 has extension female threads 141 and the opposite end has an extension stud 142. The extension female screw 141 is adapted to be screw-coupled with the first stud 1113 of the first pipe 111, and the extension stud is adapted to be screw-coupled with the extension female screw of the other extension pipe 14 to extend the length of the first pipe 111 indefinitely. An operator can splice the multiple sections of the extension pipes 14 one by one in the process of lowering the first pipe 111 until the first isolation ring 121 is lowered to the depth of the soil layer corresponding to the target area.

Referring to fig. 5, the groundwater layered water stopping structure 1 of the embodiment shown in fig. 5 is capable of extracting groundwater 4 of two target areas at a time. The collection tube of this embodiment comprises two tubes, a first tube 111 and a second tube 112. The groundwater layering stagnant water structure 1 of this embodiment includes first connecting piece 113, first suction tube 114 and second suction tube 115, and first body 111 and second body 112 are connected respectively at the both ends of first connecting piece 113, and first suction tube 114 wears to establish first connecting piece 113 and stretches into inside first body 111, and second suction tube 115 stretches into inside second body 112.

The second tube 112 is a hollow tube with two open ends, and the proximal end and the distal end of the second tube 112 both have a second stud 1121, the second stud 1121 at the distal end of the second tube 112 is in threaded connection with the first connector 113, and the second stud 112 at the proximal end of the second tube 112 can be in threaded connection with the extension tube 14 or another first connector 113.

Referring to fig. 6, the first connecting member 113 has a threaded port 1133 at both the proximal end and the distal end, the threaded port 1133 at the distal end is threadedly coupled to the first tube 111, and the threaded port 1133 at the proximal end is threadedly coupled to the second tube 112. Of course, in other embodiments, the first connecting element 113 can be connected to the first tube 111 and the second tube 112 in other manners, such as buckling or snapping, and the like, which is not limited herein.

The sidewall of the second pipe 112 is provided with a second water inlet 1122, and the second water inlet 1122 allows the groundwater 4 in the well to enter the second pipe 112.

The second pipe 112 is provided with a filter (not shown) covering the second water inlet hole 1122 to limit impurities in the groundwater 4 from entering the inside of the second pipe 112 through the second water inlet hole 1122. The groundwater 4 inside the second pipe 112 has less impurities, and the water quality detection is more accurate.

The first coupling member 113 further has a first partition 1131 therein, the first partition 1131 defines a screw 1132, the screw 1132 is threadedly connected to the first suction tube 114, so that the first suction tube 114 is threadedly inserted into the first partition 1131, and the distal end of the first suction tube 114 extends into the first tube 111. The proximal end of the first suction tube 114 protrudes to the ground for connection to the suction pump 2 for drawing water from the interior of the first tube 111 for sampling.

The distal end of the second suction tube 115 extends into the interior of the second tube 112 and the proximal end of the second suction tube 115 may extend out of the ground to be connected to the suction pump 2 for sampling the groundwater 4 inside the second tube 112 through the second suction tube 115.

It is understood that in other embodiments, the first partition 1131 and the first suction pipe 114 may be an integral structure, and are not limited herein.

The embodiment shown in fig. 5 comprises four cage spacers, namely two first cage spacers 121 and two second cage spacers 123. Of course, in other embodiments, the number of the first isolation ring 121 and the second isolation ring 123 may also be other numbers, such as one, three or more, and is not limited herein.

The first isolation ring 121 is disposed on the outer wall of the first tube 111, and the second isolation ring 123 is disposed on the outer wall of the second tube 112. The second isolation ring 123 can be integrated with the second pipe body 112 through hot pressing, so as to ensure the sealing performance between the second isolation ring 123 and the second pipe body 112 and avoid water seepage.

The first isolation rings 121 and the second isolation rings 123 may all be connected in series through the second air pipe 124, the proximal end of the second air pipe 124 is connected to the inflation device 3, and the inflation device 3 inflates the two first isolation rings 121 and the two second isolation rings 123 simultaneously through the second air pipe 124. The first isolation ring 121 and the second isolation ring 123 are gradually expanded in the process of inflation until the first isolation ring 121 and the second isolation ring 123 are attached to the well wall in an all-around mode, and therefore the target area is isolated from the underground water 4 of the non-target area.

The first water inlet 1111 formed in the first pipe 111 is disposed on a side of the first isolation ring 121 opposite to the second isolation ring 123, and the second water inlet 1122 is disposed between the first isolation ring 121 and the second isolation ring 123. A first target area is located at the region of the first spacer 121 facing the distal end of the first tube 111 and a second target area is located between the first spacer 121 and the second spacer 123. The positions of the first and second spacers 121 and 123 may be adjusted to adjust the first and second target area positions and thus the area of water production.

In the embodiment, when water is collected, the relative positions of the first spacing ring 121 and the second spacing ring 123 are adjusted. Since both ends of the extension pipe body 14 may be screw-connected with the first pipe body 111 or the second pipe body 112, the number of splices of the extension pipe body 14 may be increased or decreased between the first pipe body 111 and the second pipe body 112 to adjust the distance between the first barrier ring 121 and the second barrier ring 123, thereby adjusting the range of each water-producing area.

Before the underground water layered water stop structure 1 enters the well, the first isolation ring 121 and the second isolation ring 123 are in an air release state, so that the underground water layered water stop structure can be conveniently and quickly lowered into the well. After the first isolation ring 121 and the second isolation ring 123 reach the target positions, the second air pipe 124 is inflated by the inflating device 3, so that the first isolation ring 121 and the second isolation ring 123 expand to abut against the well wall, and two target areas of water to be collected are isolated. Finally, the first suction pipe 114 and the second suction pipe 115 are sequentially pumped by using the water pump 2, and the pumping metering mode is described above until the groundwater 4 of the two target areas is pumped and collected. And after the water is produced, the first isolation ring 121 and the second isolation ring 123 are deflated through the second air pipe 124, and the underground water layered water stop structure 1 is taken out.

Referring to fig. 7, the groundwater layered water stopping structure 1 of the embodiment shown in fig. 7 is capable of extracting groundwater 4 of three target areas at a time. The collection tube of this embodiment comprises three tubes, namely a first tube 111, a second tube 112, and a third tube 116. The number of suction tubes is three, namely a first suction tube 114, a second suction tube 115 and a third suction tube 118. The number of the spacers and the number of the air tubes are six, i.e., two first spacers 121, two second spacers 123, two third spacers 125, and a third air tube 127. The number of the connectors is two, i.e., the first connector 113 and the second connector 17.

It will be appreciated that the embodiment of figure 7 is based on the embodiment of figure 6, with the addition of a third tube 116, a second connector 117, a third spacer 125 and a third suction tube 118.

The structure of the second connecting member 17 is the same as that of the first connecting member 113, the distal end of the second connecting member 17 is threadedly connected to the proximal end of the second tube 112, and the proximal end of the second connecting member 17 is threadedly connected to the third tube 116. It is understood that the second connector 17 can be connected to the second tube 112 and the third tube 116 in other ways, such as by buckling or snapping, and is not limited herein.

The second connecting member 17 has a second partition 171, the second partition 171 has two screw holes, the distal end thread of the first suction tube 114 penetrates one of the screw holes and extends into the first tube 111 for sucking the groundwater 4 inside the first tube 111. The distal end thread of the second suction pipe 115 penetrates another screw hole and extends into the second pipe 112, so as to suck the groundwater 4 inside the second pipe 112.

It should be noted that one of the two screw holes of the second partition 171 may be used, and if the other screw hole is not used, the screw hole may be sealed by using a sealing plug to seal the screw hole, so as to prevent the groundwater 4 inside the second pipe 112 and the groundwater 4 inside the third pipe 16 from communicating with each other and affecting the detection.

The second partition 171 serves to isolate the inside of the second pipe 112 from the inside of the third pipe 116 to prevent the groundwater 4 inside the second pipe 112 from mixing with the groundwater 4 inside the third pipe 116.

The third pipe 116 has a third water inlet hole 1161, and the third water inlet hole 1161 allows the groundwater 4 to flow into the third pipe 116. The distal end of the third suction tube 118 extends into the interior of the third tube 116 and the proximal end of the third suction tube 118 extends out of the ground and is connected to the suction pump 2 for sampling the groundwater 4 inside the third tube 116.

The third water inlet hole 1161 is located between the second isolation ring 123 and the third isolation ring 125, and is used for allowing the groundwater 4 between the second isolation ring 123 and the third isolation ring 125 to enter the inside of the third pipe 116 to be sucked and sampled by the third suction pipe 118.

The third pipe 116 is provided with a screen covering the third water inlet hole 1161 to limit impurities in the groundwater 4 from entering the inside of the third pipe 116 through the third water inlet hole 1161. The groundwater 4 inside the third tube 116 has less impurities, and the water quality detection is more accurate.

As can be seen from the above description of the present embodiment, the three water collection areas of the present embodiment are the area of the first isolation ring 121 facing away from the second isolation ring 123, the area between the first isolation ring 121 and the second isolation ring 123, and the area between the second isolation ring 123 and the third isolation ring 125.

In the embodiment, when sampling, the relative positions of the first isolation ring 121, the second isolation ring 123 and the third isolation ring 125 are adjusted. Because the both ends of extension body 14 can with arbitrary body threaded connection, so can increase or reduce the concatenation quantity of extension body 14 between two adjacent bodys to adjust the distance between two adjacent cage, and then adjust each regional scope of adopting water.

Before entering the well, the three isolation rings are in an air-bleed state, so that the three isolation rings can be conveniently lowered into the well. After the three isolation rings reach the target positions, the air pipes connected with the three isolation rings are inflated by the inflating equipment 3 respectively, so that the first isolation ring 121, the second isolation ring 123 and the third isolation ring 125 are all expanded to tightly abut against the well wall, and the three target areas of the water to be mined are isolated. Finally, the first suction pipe 114, the second suction pipe 115 and the third suction pipe 118 are pumped by the water pump 2 in sequence, and the pumping metering mode is described above until the groundwater 4 of the three target areas is pumped and collected.

The above description only uses the groundwater layering water stopping structure 1 to collect groundwater 4 of one target area, two target areas and three target areas at a time as an example, which is not exhaustive. The underground water layered water stop structure 1 can collect four or more pieces of underground water 4 in a target area at one time, and only the number of the isolation rings, the pipe bodies, the connecting pieces and the suction pipes needs to be continuously increased, which is not listed.

Referring to fig. 8, the surveying apparatus can provide a good surveying environment for the photographing equipment in addition to the above-described water-blocking effect.

The shooting device 5 comprises a camera 51, a data line 52 and a driving pipe 53, wherein one end of the driving pipe 53 is connected with the camera 51, and the other end of the driving pipe 53 extends out of the ground. The data line 52 is located inside the driving tube 53, and one end of the data line 52 is connected to the camera 51 and the other end is connected to a host (not shown). The pictures shot by the camera 51 in the well can be transmitted to the host computer through the data line 52 for the reference of the operator.

Firstly, the underground water layered water stop structure 1 is stretched into the well, and the first isolation ring 121 is inflated to isolate the underground water. Then, the water pump 2 is used to pump up the turbid water and slurry inside the first pipe 111 until the water inside the first pipe 111 is groundwater, and tap water is poured into the first pipe 111 to clear the water inside the first pipe 111. The handheld drive tube 53 of operating personnel stretches into first body 111 inside with camera 51, and camera 51 is at the process of removing, and operating personnel can remove the picture of observing camera 51 shooting simultaneously, and until camera 51 is close to the target location, then operation host computer control camera 51 shoots or makes a video recording to the target location, and the clear ground layer of gathering the pipe distal end of surveying of being convenient for characteristics such as reconnaissance operating personnel surveys, knows underground rock crack, morals and manners condition.

In an alternative embodiment, the first pipe body 111, the second pipe body 112 and the first connecting member 113 of the embodiment shown in fig. 5 may be an integrally formed structure, that is, they are replaced by a water pipe having a first partition 1131 inside, the first partition 1131 partitions the inside of the water pipe into a first chamber and a second chamber, the first water inlet 1111 communicates with the first chamber and the outside, the second water inlet 1122 communicates with the second chamber and the outside, the first isolation ring 121 and the second isolation ring 123 are both disposed on the outer wall of the water pipe, the first suction pipe 114 penetrates the first partition 1131 and extends into the first chamber, and the second suction pipe 115 extends into the second chamber. The first chamber may capture groundwater 4 from the distal area of the water pipe facing the first spacer 121 and the second chamber may capture groundwater 4 between the first spacer 121 and the second spacer 123. With the suction of the suction pump through the two suction pipes, the groundwater 4 corresponding to the two target water collection areas can be pumped out and sampled, and the same effect as the embodiment shown in fig. 5 can be achieved.

Similarly, the first tube 111, the second tube 112, the third tube 116, the first connector 113 and the second connector 17 of the embodiment shown in fig. 7 may also be an integrally formed structure, that is, replaced with a water tube having a first partition 1131 and a second partition 17 inside, the two partitions partition the inside of the water tube into a first chamber, a third chamber and a fourth chamber, the first water inlet 1111 communicates the first chamber with the outside, the second water inlet 1122 communicates the third chamber with the outside, and the third water inlet 1161 communicates the fourth chamber with the outside. The first isolation ring 121, the second isolation ring 123 and the third isolation ring 125 are all arranged on the outer wall of the water pipe. First suction tube 114 wears to establish second baffle 171 and first baffle 1131 in proper order and stretches into to first cavity, and second suction tube 115 wears to establish second baffle 171 and stretches into to the third cavity, and the third suction tube stretches into to the fourth cavity. The first chamber may capture groundwater 4 from the distal area of the water pipe facing the first spacer 121, the third chamber may capture groundwater 4 between the first spacer 121 and the second spacer 123, and the fourth chamber may capture groundwater 4 between the second spacer 123 and the third spacer 125. The groundwater 4 corresponding to the three target water collection areas can be sampled by pumping with the water pump through the three suction pipes, and the same effect as in the embodiment shown in fig. 7 can be achieved.

The invention also provides a water stopping method, which is realized by using the underground water layered water stopping structure 1 and through the following steps:

the far end of the collecting pipe 11 is lowered into a pre-drilled well, and the lowering depth is measured while the far end is lowered until the first water inlet 1111 and the first isolation ring 11 on the collecting pipe 11 reach a target area; groundwater in the well flows into the interior of collection tube 11 through first inlet 1111. After the collection tube 11 is placed down, the near end of the collection tube 11 is kept extending out of the ground, so that the collection tube 11 can be taken out conveniently at the later stage.

The first air pipe 122 connected with the first isolation ring 121 is connected with an inflation device, so that the inflation device inflates the first isolation ring 121, the first isolation ring 121 expands to abut against the well wall to isolate the underground water, and the underground water of the target area is isolated from the underground water of the non-target area.

The first suction pipe 114 is connected to a suction pump, and the suction pump continuously sucks the groundwater inside the collection pipe 11 through the first suction pipe 114, so as to collect the groundwater in the target area. Or pouring tap water into the target area through the first suction pipe 114 to enable the water quality of the target area to be clear, and lowering the shooting device 5 into the target area from the interior of the collecting pipe 11 to detect the rock-soil layer at the far end of the collecting pipe.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions and alterations can be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be subject to the claims.

Claims (10)

1. The utility model provides a groundwater layering stagnant water structure which characterized in that includes:

the collecting pipe is provided with a first water inlet hole, and external underground water can flow into the collecting pipe through the first water inlet hole;

the first isolation ring is sleeved on the outer wall of the collection pipe and can be inflated and expanded to isolate a target water collection area;

the first suction pipe is communicated with the collection pipe and is used for being connected with a water pumping device so as to pump the underground water in the collection pipe.

2. The groundwater layered water stopping structure according to claim 1, further comprising a first partition plate, a second isolation ring and a second suction pipe, wherein the first partition plate is arranged inside the collection pipe to separate the inside of the collection pipe into a first chamber and a second chamber, the collection pipe has a second water inlet hole, the second water inlet hole is communicated with the second chamber and the outside, the first water inlet hole is communicated with the first chamber and the outside, the second water inlet hole is located between the first isolation ring and the second isolation ring, the first water inlet hole is located on a side of the first isolation ring, which is opposite to the second isolation ring, the second suction pipe is communicated with the second chamber, and the first suction pipe penetrates through the first partition plate from the second chamber and is communicated with the first chamber.

3. A layered groundwater water stop structure according to claim 2, further comprising a second partition plate, a third partition ring and a third suction pipe, wherein the second partition plate is disposed in the second chamber to partition the second chamber into a third chamber and a fourth chamber, the third chamber is located between the first chamber and the fourth chamber, the collection pipe has a third water inlet hole, the third water inlet hole is communicated with the fourth chamber and the outside, the second water inlet hole is communicated with the third chamber and the outside, the third water inlet hole is located between the second partition ring and the third partition ring, the first suction pipe is sequentially penetrated through the second partition plate and the first partition plate and communicated with the first chamber, the second suction pipe is penetrated through the second partition plate and communicated with the third chamber, and the third suction pipe is communicated with the fourth chamber.

4. A groundwater layered water stopping structure according to claim 3, wherein the collection pipe is provided with a screen covering at least one of the first water inlet hole, the second water inlet hole and the third water inlet hole to restrict external impurities from entering inside the collection pipe.

5. A groundwater layered water stopping structure according to claim 2, wherein the collection pipe comprises a first pipe body, a second pipe body and a first connector, and the first pipe body and the second pipe body are detachably connected to two ends of the first connector; the first water inlet hole is formed in the first pipe body, the first cavity is formed in the first pipe body, the second water inlet hole is formed in the second pipe body, the second cavity is formed in the second pipe body, and the first partition plate is arranged in the first connecting piece.

6. A groundwater layered water stopping structure according to claim 3, wherein the collection pipe comprises a first pipe body, a second pipe body, a third pipe body, a first connecting piece and a second connecting piece, the first pipe body and the second pipe body are detachably connected to both ends of the first connecting piece, and the second pipe body and the third pipe body are detachably connected to both ends of the second connecting piece; the first water inlet hole, the second water inlet hole and the third water inlet hole are formed in the first pipe body, the second pipe body and the third pipe body respectively, the first cavity is formed inside the first pipe body, the third cavity is formed inside the second pipe body, the fourth cavity is formed inside the third pipe body, and the first partition plate and the second partition plate are arranged in the first connecting piece and the second connecting piece respectively.

7. A groundwater layered water stopping structure according to claim 1, further comprising an extension pipe body, wherein a distal end of the extension pipe body is detachably connected to a proximal end of the collection pipe, and a proximal end of the extension pipe body is detachably connected to a distal end of another extension pipe body.

8. A groundwater layered water stopping structure according to claim 1, wherein the water stopping structure further comprises a fourth isolation ring sleeved on the collection pipe, and the fourth isolation ring is positioned on a side of the first water inlet hole facing away from the first isolation ring.

9. A surveying arrangement comprising a camera device for pumping groundwater from within the collection tube, a suction pump capable of extending into the interior of the collection tube for detecting formations at the distal end of the collection tube, and a groundwater layered water stop arrangement as claimed in any of claims 1 to 8.

10. A method of stopping water, characterized by using the groundwater layered water stopping structure according to any one of claims 1 to 8 and by the steps of:

the far end of the collecting pipe extends into a pre-drilled well, so that underground water in the well flows into the collecting pipe through the first water inlet hole, and the near end of the collecting pipe extends out of the ground;

inflating the first isolation ring to enable the first isolation ring to expand to abut against the well wall to isolate underground water;

the groundwater inside the collection tube is continuously pumped using a first suction tube.

Images