CN110390867B

CN110390867B - Pumping well model for teaching

Info

Publication number: CN110390867B
Application number: CN201910666109.1A
Authority: CN
Inventors: 马锁柱; 高翔; 李玲玲
Original assignee: GANSU INDUSTRY POLYTECHNIC COLLEGE
Current assignee: GANSU INDUSTRY POLYTECHNIC COLLEGE
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2021-06-01
Anticipated expiration: 2039-07-23
Also published as: CN110390867A

Abstract

The invention belongs to the technical field of water well teaching, and discloses a pumping well model for teaching, which comprises a sample display device and a vertical face display wall, wherein the vertical face display wall and the vertical face display wall are sequentially arranged; the specific pumping well teaching model wall is built in a school, the problem that three-dimensional teaching cannot be actually carried out in the existing teaching process is well solved, and students can know the specific structures of the pipe body and each geological layer in the pumping well more visually and clearly in the practice teaching process, so that the teaching process is more vivid, and the teaching quality is improved.

Description

Pumping well model for teaching

Technical Field

The invention belongs to the technical field of water well teaching, and particularly relates to a pumping well model for teaching.

Background

The pumping well is a large-caliber drilling hole drilled for pumping underground water for domestic and production water, geological environment protection and professional subject research, and provided with a well pipe and a filter; according to the application, the method is divided into a water supply well, a hydrogeology experiment well, a dewatering well for draining or reducing the underground water level and the like;

when various well structures and geological structures in wells are learned, students can only obtain related knowledge from pictures or characters on books in the learning process due to the fact that practice teaching systems are not perfect enough, and the structures of the inner pipe body and each geological layer in the pumping well cannot be understood in a three-dimensional mode in the actual environment, so that the existing teaching process is dull, and the teaching quality is low.

Disclosure of Invention

The invention aims to provide a pumping well model for teaching, which aims to solve the problem that the practical three-dimensional teaching cannot be realized in the existing pumping well-based teaching process, so that the teaching process is boring and the teaching quality is low.

In order to achieve the purpose, the invention provides the following technical scheme: a pumping well model for teaching comprises a sample display device and a vertical face display wall which are sequentially arranged, wherein the vertical face display wall comprises a wall surface base and a wall surface display area, and the height of the wall surface base is higher than that of the sample display device;

a surface soil layer, a gravel layer, a clay layer, a pebble layer and a mudstone layer are sequentially arranged in a wall surface display area of the vertical surface display wall from top to bottom, a well pipe is arranged in the middle position in the wall surface display area, and the gravel layer and the pebble layer are respectively a first water-bearing layer and a second water-bearing layer;

the well casing includes that from interior to exterior sets gradually drinking-water pipe, sedimentation pipe and outer tube, the bottom of outer tube is inserted in the clay layer, and forms the water seal through the intraformational clay of clay, the bottom of sedimentation pipe runs through to the argillaceous layer in, and has all seted up a plurality of through-hole on sedimentation pipe and the outer tube, and two sets of through-holes are located gravel layer and cobble layer in respectively, the position department that lies in the through-hole place on sedimentation pipe and the outer tube all overlaps and is equipped with the filter tube, and the outside of two filter tubes all wraps up there is the drainage ovum gravel.

Preferably, the sample display device comprises a plurality of unit display frames, a plurality of unit grooves are formed in the unit display frames, and the number of the unit display frames is the same as the number of geological layers in the well wall surface display area.

Preferably, the wall surface display area of the vertical surface display wall is marked with a water level marking, and the water level marking comprises a static water level line and a dynamic water level line.

Preferably, be equipped with a plurality of show tablet on the wall show region of facade show wall, the quantity of show tablet is the same with geological formation quantity, and every show tablet introduces the structural condition and the material formation of every geological formation respectively.

Preferably, elevation lines are arranged on the elevation display wall, and specific elevations of the elevation lines are marked according to actual elevations of the original pumping well.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, a specific pumping well teaching model wall is established in a school, so that the problem that three-dimensional teaching cannot be actually carried out in the existing teaching process is well solved, and students can more intuitively and clearly know the specific structures of the inner pipe body and each geological layer of the pumping well in the practical teaching process, so that the teaching process is more vivid, and the teaching quality is improved;

and moreover, the classification display of geological stratum structure samples is matched, so that students can more directly contact the formation materials of all geological strata, and the understanding of the students on geological knowledge is further improved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of a sample display device of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at B;

in the figure: 1-sample display device, 2-vertical face display wall, 3-well pipe, 4-topsoil layer, 5-gravel layer, 6-gravel layer, 7-clay layer, 8-gravel layer, 9-mudstone layer, 10-unit display frame, 11-outer pipe, 12-settling pipe, 13-water pumping pipe, 14-filter pipe, 15-water filtering gravel, 16-water level marking, 17-display board and 18-marking line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

1. Establishing a well teaching model based on a domestic water supply well; specifically, the well depth of the water supply well is 45.32m, the well head elevation is 1120m, and the water level of the main water-containing layer is 1101.05 m.

2. Based on the well teaching model, the well teaching model comprises a sample display device 1 and a vertical face display wall 2 which are sequentially arranged, wherein the vertical face display wall 2 comprises a wall surface base and a wall surface display area, and the height of the wall surface base is higher than that of the sample display device 1;

as shown in fig. 1, the geological formation structure in the well is fully displayed in the wall display area of the facade display wall 2: specifically, a topsoil layer 4, a sand gravel layer 5, a gravel layer 6, a clay layer 7, a pebble layer 8 and a mudstone layer 9 are sequentially arranged from top to bottom, a well pipe 3 is arranged at the middle position in the wall surface display area, the gravel layer 6 and the pebble layer 8 are respectively a first water-bearing layer and a second water-bearing layer, and the second water-bearing layer is a main water-bearing layer;

as shown in fig. 1, 3-4, the concrete structure of the well pipe 3 in the water well is fully shown: the well pipe 3 comprises a water pumping pipe 13, a settling pipe 12 and an outer pipe 11 which are sequentially arranged from inside to outside, the bottom end of the outer pipe 11 is inserted into a clay layer 7, water sealing is formed by clay in the clay layer 7, the bottom end of the settling pipe 12 penetrates into a mudstone layer 9, a plurality of through holes are formed in the settling pipe 12 and the outer pipe 11 respectively, two groups of through holes are respectively located in a gravel layer 6 and a pebble layer 8, filtering pipes 14 are sleeved at positions, where the through holes are located, of the settling pipe 12 and the outer pipe 11 respectively, and filtering pebbles 15 are wrapped outside the two filtering pipes 14; according to the structure, the water well forms a structural form that the outer pipe 11 is matched with clay to stop water, the gravel layer 6 is matched with the pebble layer 8 to take water in a layering mode, and the gravel layer 6 and the pebble layer 8 respectively supply water into the outer pipe 11 and the sedimentation pipe 12.

To sum up, the internal structure of the water supply well is completely displayed on the vertical display wall 2, so that students can know the internal structure of the well more three-dimensionally in the practice teaching process, and the vividness and the teaching quality of the teaching process are effectively improved.

As shown in fig. 2, preferably, the sample display device 1 comprises a plurality of unit display frames 10, a plurality of unit slots are arranged in the unit display frames 10, and the number of the unit display frames 10 is the same as the number of geological layers in the well wall surface display area; utilize the device to realize corresponding geological stratum structure material's classification show for the student can more audio-visual contact geological material at the teaching in-process, thereby difference between each geological stratum structure of more accurate understanding.

In the invention, preferably, a water level marking 16 is marked on the wall surface display area of the facade display wall 2, and the water level marking 16 comprises a static water level line and a dynamic water level line; based on the first aquifer and the second aquifer, two groups of water level marked lines 16 are marked respectively, wherein the first aquifer is only marked with a static water level line, and the second aquifer is marked with a static water level line and a dynamic water level line.

In the invention, preferably, a plurality of display boards 17 are arranged on the wall surface display area of the facade display wall 2, the number of the display boards 17 is the same as that of geological layers, and each display board 17 respectively introduces the structural state and material formation of each geological layer;

specifically, the method comprises the following steps: (1) the surface soil layer 4 is loess silty clay which is uniform, loose, slightly wet and hard-plastic and contains a large number of plant roots and wormholes; (2) the gravel layer 5 mainly comprises gravel with the particle size of 5-100mm, the components mainly comprise granite, granite pegmatite and marble, and the sand mainly comprises coarse sand and a small amount of boulder; (3) the gravel layer 6 mainly comprises gravel, the particle size of the gravel is 30-50mm, and the components mainly comprise granite, marble and silicalite; (4) the clay layer 7 is silty clay with uniform texture, and a small amount of gravel with the particle size of 1-5mm can be seen; (5) the pebble layer 8 is gravel pebbles, and the components of the pebbles mainly comprise granite, silicalite and metamorphic rock; the sand is mainly quartz, attempted mica and accompanied by a small amount of boulder; (6) the mudstone layer 9 is lime-green mudstone and becomes soft and hard with increasing depth.

In the invention, preferably, the elevation display wall 2 is provided with a height marking line 18, and the specific elevation of the height marking line 18 is marked according to the actual elevation of the original pumping well.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pumped well model is used in teaching which characterized in that: the vertical surface display wall comprises a sample display device (1) and a vertical surface display wall (2) which are sequentially arranged, wherein the vertical surface display wall (2) comprises a wall surface base and a wall surface display area, and the height of the wall surface base is higher than that of the sample display device (1);

a surface soil layer (4), a sand gravel layer (5), a gravel layer (6), a clay layer (7), a pebble layer (8) and a mudstone layer (9) are sequentially arranged in a wall surface display area of the vertical surface display wall (2) from top to bottom, a well pipe (3) is arranged in the middle position in the wall surface display area, and the gravel layer (6) and the pebble layer (8) are respectively a first water-bearing layer and a second water-bearing layer;

well casing (3) are including from interior to exterior set gradually drinking-water pipe (13), sedimentation pipe (12) and outer tube (11), the bottom of outer tube (11) is inserted in clay layer (7), and forms the water seal through the clay in clay layer (7), the bottom of sedimentation pipe (12) is run through to in mudstone layer (9), and has all seted up a plurality of through-hole on sedimentation pipe (12) and outer tube (11), and two sets of through-holes are located gravel layer (6) and cobble layer (8) respectively, the position department that lies in the through-hole place on sedimentation pipe (12) and outer tube (11) all overlaps and is equipped with filter tube (14), and the outside of two filter tube (14) all wraps up has drainage gravel (15).

2. A pumping well model for teaching according to claim 1, characterized in that: the sample display device (1) comprises a plurality of unit display frames (10), a plurality of unit grooves are formed in the unit display frames (10), and the number of the unit display frames (10) is the same as the number of geological layers in a well wall surface display area.

3. A pumping well model for teaching according to claim 1, characterized in that: the water level marked lines (16) are marked on the wall surface display areas of the facade display wall (2), and the water level marked lines (16) comprise static water level lines and dynamic water level lines.

4. A pumping well model for teaching according to claim 1, characterized in that: be equipped with a plurality of show tablet (17) on the wall show region of facade show wall (2), the quantity of show tablet (17) is the same with geological formation quantity, and every show tablet (17) introduces the structural condition and the material formation of every geological formation respectively.

5. A pumping well model for teaching according to claim 1, characterized in that: be equipped with elevation line (18) on facade show wall (2), and the concrete elevation of elevation line (18) marks according to the actual elevation of former pumped well.