CN105427731A

CN105427731A - Northern karst spring protection and water quality evolution simulation device and simulation method

Info

Publication number: CN105427731A
Application number: CN201511021718.XA
Authority: CN
Inventors: 邢立亭; 邢学睿; 张凤娟; 李常锁
Original assignee: University of Jinan
Current assignee: University of Jinan
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-03-23
Anticipated expiration: 2035-12-30
Also published as: CN105427731B

Abstract

The invention relates to a northern karst spring protection and water quality evolution simulation device. The northern karst spring protection and water quality evolution simulation device includes a water supply device, a seepage device and a spring water control device; a seepage column is a cylindrical structure which is arranged obliquely and simulates a monoclonal structure; the closed end of the seepage column is provided with a water outlet; the spring water control device is arranged at the water outlet; the seepage column is filled with a Cambrian-Ordovician limestone seepage medium; a plurality of pressure measuring openings and water taking openings are arranged at the side wall of the seepage column; the pressure measuring openings are respectively connected with a pressure measuring tube; the pressure measuring tubes are respectively provided with a valve; the water taking openings are respectively provided with a flow meter and a valve; the water supply device comprises a water bearing layer leakage recharge device and a rain water supply device; the side wall of the upper end of the seepage column is provided with an overflow opening; and the overflow opening is connected with an overflow bottle through a pipeline. With the northern karst spring protection and water quality evolution simulation device of the invention adopted, a northern karst spring water quality evolution process can be simulated, and karst spring water quality evolution laws can be explored, and a scientific basis can be provided for the formulation for spring protection measures.

Description

The large spring protection of a kind of karst of northern and water quality Evolution Simulation device and analogy method

Technical field

The present invention relates to a kind of analogue means and analogy method, specifically a kind of simulate the large spring of karst of northern formation, protection, water quality evolutionary process and mankind's exploitation be on the device of spring impact and analogy method.

Background technology

Due to the ornamental value that spring is exclusive, just become the object that scholar poet falls over each other to chant since ancient times, to today, spring remains the focus that people pay close attention to.This is on the one hand because spring is that the mankind provide desirable water source, is because spring can form and manyly view and admire view and tourist resources on the other hand, as physiotherapy spring, drinks spring etc.The quantity of China's spring is countless, is widely distributed, and type is also very abundant, existing ascending spring, also has gravity spring, and each place name spring is too numerous to enumerate.In each place name spring, especially famous with northern karst big spring, be characterized in that flow is big, more than spring point quantity, excellent, the dynamic stability of water quality.Many karst big spring have abundant, long lasts cultural connotation.But along with the growth of population, the development of industrial and agricultural production, causes increasingly sharpening of the contradiction of supply and demand for the water resource, since at the beginning of last century, to the mid-1970s, whole world Water Consumption in Agriculture increases 7 times, and industrial water consumption increases 21 times.The increase of amount of groundwater mining, makes the disappearance gradually of part spring.

For Jinan, Jinan is well-known with " spring city ", and famous spring 130 many places within the scope of the sq-km of city 2.6 can be national best more than spring.Baotu Spring recorded history is tracked to the Shang dynasty of China, and reach more than 3550 year so far, history culture is of long standing and well established, and the cultural deposits in Baotu Spring are deep.The large springs of famous Baotu Spring, Pearl Spring, Heihu Quan and Five Dragons' Pool four are at the sixties in last century five average discharge ten thousand stere every day 30, and only Baotu Spring just to gush out the spring of 7 ten thousand steres every day.But because last century has exploited karst water since the seventies in a large number, Baotu Spring is caused to stop first in 1972, even if so large spring, stop the low water season over the years after last century the eighties stop-spraying, the wherein the longest once cutout time is that stop-spraying reaches 926 days from September 17, March 14 to calendar year 2001 in 1999.For restoration and protection spring; local government takes the measure of many guarantor's springs; such as economize on water Bao Quan, draw Huang Baoquan, close water factory, reduce homemade well exploitation etc.; but the development of the growth of population and industrial or agricultural; all mean that underground water consumption will increase; for causing again the waste of water resource during Bao Quan minimizing mining of groundwater blindly, how reasonable is therefore the problem of pendulum in face of people protecting exploiting groundwater under spring condition.

But, although protect spring measure in recent years to achieve some effects, but worsening but appears in the water quality of spring, between 1958 ~ 2014 56 years, the chemical compositions such as Baotu Spring spring salinity, total hardness, chlorion, sulfate ion, nitrate ion enlarge markedly, wherein chlorion increases nearly 3.2 times, and sulfate ion increases 6.14 times, and nitrate ion increases 8.9 times.Chlorion, sulfate ion, nitrate ion concentration significantly increase explanation karst water quality and receive pollution, therefore find out that karst water quality Evolution and pollution cause become again current a great problem.

Summary of the invention

In order to inquire into the origin cause of formation and the change of water quality process of northern Ordovician limestone karst big spring, the measure of restoration and protection spring view is proposed.The invention provides that the large spring of a kind of simulation karst of northern is formed, protection and water quality Evolution Simulation device and analogy method, the formation of karst big spring, supply from spring process, spring change of water quality process can be simulated, and then provide scientific basis for spring safeguard measure.

The present invention solves the technical scheme that its technical matters takes:

The large spring of a kind of karst of northern is formed and water quality Evolution Simulation device, comprises water unit, seepage flow portion and spring control part;

Described seepage flow portion comprises seepage flow post and supporting construction;

Described seepage flow post is tilted-putted cylindrical-shaped structure, and upper end open lower end closed, the blind end of described seepage flow post is provided with water delivering orifice;

Described spring control part comprises flexible pipe, the first support, scale and clip;

Described flexible pipe is arranged on the water delivering orifice of seepage flow post blind end, and described first Bracket setting is in the side of seepage flow post blind end;

Described first support is provided with scale and clip, and described clip is connected with the openend of flexible pipe, and described clip can move up and down along the first support;

Percolating medium is filled with in described seepage flow post;

The sidewall of described seepage flow post is provided with several pressure tap and intake;

Described each pressure tap is all connected with piezometric tube, and described piezometric tube is provided with valve;

Described each intake is provided with flowmeter and valve;

Described water unit comprises water-bearing zone leakage-releasing water assembly and rainwater supply assembly;

Described water-bearing zone leakage-releasing water assembly comprises the 7th water supply bottle, and the rising pipe of described 7th water supply bottle is provided with valve and flowmeter;

Described 7th water supply bottle built with karst water, and is communicated with the sidewall on seepage flow post top;

Described rainwater supply assembly is supplied water in seepage flow post by the described each piezometric tube be arranged on seepage flow post sidewall;

The top of described seepage flow post is provided with overflow vent, and described overflow vent is connected with overflow bottle by pipeline.

According to a specific embodiment of the present invention, described percolating medium is taken from the Cambrian period upper system and unites to the Ordovician period stratum, described percolating medium comprise fill successively from bottom to top Fengshan group in the Cambrian period, group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four section of seven class carbonate formation in smelting in the Ordovician period.

Further, described each pressure tap is arranged at the top of group in smelting, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections and horse man ditch group three sections respectively.

Further, described each intake is arranged at the lower end of Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four sections respectively.

Further, described rainwater device for supplying comprises the first water supply bottle, second water supply bottle, 3rd water supply bottle, 4th water supply bottle, 5th water supply bottle and the 6th water supply bottle, described first water supply bottle, second water supply bottle, 3rd water supply bottle, 4th water supply bottle, 5th water supply bottle and the 6th water supply bottle are all equipped with rainwater, and described first water supply bottle is communicated with the piezometric tube organizing top in smelting, described second water supply bottle is communicated with the piezometric tube above the group of Liang Jia mountain, the piezometric tube of described 3rd water supply bottle and horse man ditch group one section of top is communicated with, the piezometric tube of described 4th water supply bottle and horse man ditch group two sections of tops is communicated with, the piezometric tube of described 5th water supply bottle and horse man ditch group three sections of tops is communicated with, described 6th water supply bottle is communicated with the upper end open of seepage flow post, the first described water supply bottle, second water supply bottle, 3rd water supply bottle, 4th water supply bottle, 5th water supply bottle and the 6th water supply bottle rising pipe are provided with valve and flowmeter.

According to another embodiment of the present invention, described supporting mechanism comprises the second support and the 3rd support, and described second support is connected with the two ends of seepage flow post respectively with the 3rd support, and described 3rd support is higher than the second support.

According to another embodiment of the present invention, the angle of inclination of described seepage flow post is 20 °.

According to another embodiment of the present invention, described piezometric tube and seepage flow post all adopt transparent organic glass material, and described piezometric tube is provided with scale.

According to another embodiment of the present invention, described flexible pipe is transparent colloid flexible pipe, and the opening part of described flexible pipe is provided with rigid elbow, and described rigid elbow is provided with flowmeter.

The large spring protection of a kind of karst of northern and water quality Evolution Simulation method, comprise the following steps,

The first step, preparation, for examination water sample and percolating medium, is specially,

A1, respectively by the Cambrian period Fengshan group, group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four section of seven class carbonatite knock fragmentation in smelting in the Ordovician period, make the equal <0.2cm of particle diameter, respectively it is dried, then respectively it is weighed, then group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four sections of priorities in the Fengshan group in the Cambrian period after oven dry, smelting in the Ordovician period are loaded in seepage flow post successively;

A2, rainwater and karst water are used the removal of impurities of 0.45um filtering with microporous membrane respectively;

Second step, assembles and forms analogue means, and measures the internal diameter of seepage flow post;

3rd step, simulation horse man ditch group four sections of precipitation recharges, are specially,

B1, open the 7th water supply bottle valve, close the valve of the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle with the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle, make for trying water saturation seepage flow post;

B2, open the 6th water supply bottle valve, regulate water supply flow, and the rainwater in the 6th water supply bottle keeps that supply exceed demand, avoids occurring cutout;

B3, close the valve of all intakes, only open the water delivering orifice of right side simulation spring, the position of the rigid elbow of fixed-analog spring outlet, and height is lower than 1026mm, after this water delivering orifice stability of flow, the valve opening the first intake, the second intake, the 3rd intake, the 4th intake and the 5th intake is successively sampled, and is water sample I, water sample II, water sample III, water sample IV, water sample V, after sampling, close the valve of each intake;

The ion concentration of b4, the conductivity measuring institute's water sampling in b3 respectively, temperature, pH value and nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc., and record;

B5, the state keeping the valve of all intakes to be closedown, volume and the head of water outlet water seepage is read by the scale on jug every 30min, and the real time measure oozes out the ion concentration of electrical conductivity of water, temperature, pH value and nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc., and record;

B6, the feed water flow value of each water supply bottle according to setting, preparation for examination water sample, and measures the ion concentration of the nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc. for examination water sample;

B7, open the valve of the first intake, the valve of all the other intakes keeps closed condition, the flow setting the first intake is respectively Q1, Q2 and Q3, then measures the head of spring position and spring flux situation and each pressure tap on the right side of when corresponding situation is stablized, and record;

B8, open the valve of the second intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7;

B9, open the valve of the 3rd intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7;

B10, open the valve of the 4th intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7;

B11, open the valve of the 5th intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7;

B12, the flow setting each intake are Q1, open the first intake and the second intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B13, the flow setting each intake are Q1, open the first intake and the 3rd intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B14, the flow setting each intake are Q1, open the first intake and the 4th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B15, the flow setting each intake are Q1, open the first intake and the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B16, the flow setting each intake are Q1, open the first intake, the second intake and the 3rd intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B17, the flow setting each intake are Q1, open the first intake, the second intake and the 4th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B18, the flow setting each intake are Q1, open the first intake, the second intake and the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B19, the flow setting each intake are Q1, open the first intake, the second intake, the 3rd intake and the 4th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B20, the flow setting each intake are Q1, open the first intake, the second intake, the 3rd intake and the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B21, the flow setting each intake are Q1, open the first intake, the second intake, the 3rd intake, the 4th intake, the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B22, the flow setting each intake are respectively Q2, Q3, then repeat the operation of b3-b21.

4th step, simulation horse man ditch group four sections and horse man ditch group three sections precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the 5th water supply bottle, close the valve of the first water supply bottle, the second water supply bottle, the 3rd water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b22;

5th step, simulation horse man ditch group four sections and horse man ditch group two sections precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the 4th water supply bottle, close the valve of the first water supply bottle, the second water supply bottle, the 3rd water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b22;

6th step, simulation horse man ditch group four sections and horse man ditch group one section precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the 3rd water supply bottle, close the valve of the first water supply bottle, the second water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the second water supply bottle, the 4th water supply bottle, then repeat the operation of b3-b22;

7th step, simulation horse man ditch group four sections and Liang Jia mountain group precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the second water supply bottle, close the valve of the first water supply bottle, the 3rd water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the 3rd water supply bottle, the 4th water supply bottle, then repeat the operation of b3-b22;

8th step, organizes precipitation recharges simultaneously in simulation horse man ditch group four sections and smelting, is specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the first water supply bottle, close the valve of the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle, then repeat the operation of b3-b22;

9th step, simulation horse man ditch group four sections, horse man ditch group three sections and horse man ditch group two sections precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the 4th water supply bottle, close the valve of the first water supply bottle, the second water supply bottle and the 3rd water supply bottle, and the valve of closing on the piezometric tube corresponding with the 3rd water supply bottle to the first water supply bottle, the second water supply bottle, then repeat the operation of b3-b22;

Tenth step, simulation horse man ditch group four sections, horse man ditch group three sections and horse man ditch group one section precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the 3rd water supply bottle, close the valve of the first water supply bottle, the second water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the first water supply bottle, the second water supply bottle, then repeat the operation of b3-b22;

11 step, simulation horse man ditch group four sections, horse man ditch group three sections and Liang Jia mountain group precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the second water supply bottle, close the valve of the first water supply bottle, the 3rd water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the first water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b22;

11 step, in simulation horse man ditch group four sections, horse man ditch group three sections and smelting, group precipitation recharges simultaneously, is specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the first water supply bottle, close the valve of the second water supply bottle, the 3rd water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the second water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b22;

12 step, simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections and horse man ditch group one section precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle and the 3rd water supply bottle, close the valve of the first water supply bottle and the second water supply bottle, and the valve of closing on the piezometric tube corresponding with the second water supply bottle to the first water supply bottle, then repeat the operation of b3-b22;

13 step, simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections and Liang Jia mountain group precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle and the second water supply bottle, close the valve of the first water supply bottle and the 3rd water supply bottle, and the valve of closing on the piezometric tube corresponding with the 3rd water supply bottle to the first water supply bottle, then repeat the operation of b3-b22;

14 step, in simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections and smelting, group precipitation recharges simultaneously, is specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle and the first water supply bottle, close the valve of the second water supply bottle and the 3rd water supply bottle, and the valve of closing on the piezometric tube corresponding with the 3rd water supply bottle to the second water supply bottle, then repeat the operation of b3-b22;

15 step, simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections, horse man ditch group one section and Liang Jia mountain group precipitation recharges simultaneously, be specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle, the 3rd water supply bottle and the second water supply bottle, close the valve of the first water supply bottle, and the valve of closing on the piezometric tube corresponding to the first water supply bottle, then repeat the operation of b3-b22;

16 step, in simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections, horse man ditch group one section and smelting, group precipitation recharges simultaneously, is specially,

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle, the 3rd water supply bottle and the first water supply bottle, close the valve of the second water supply bottle, and the valve of closing on the piezometric tube corresponding to the second water supply bottle, then repeat the operation of b3-b22;

17 step, in simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections, horse man ditch group one section, Liang Jia mountain group and smelting, group precipitation recharges simultaneously, is specially,

Open the valve of all water supply bottles, then repeat the operation of b3-b22.

The invention has the beneficial effects as follows:

The present invention passes through formation and the water quality evolutionary process of the large spring of simulation karst of northern,

The first, the precipitation infiltration recharge of each formation lithology from different places can be simulated, and then the impact of research on karst water system water quality;

The second, the precipitation infiltration recharge of each formation lithology from different places can be simulated, and then research precipitation infiltration is on the impact of spring water quality;

Three, the water between Simulated rainwater, underground water and water-bearing zone-rock effect, the hydrogeochemical process of inverting karst water system;

Four, simulate different water cut layer mining of groundwater layout, Study of The Underground water is exploited spring water mitigation, for reasonable mining distribution provides foundation;

Five, rainwater is changed into surface water and can be used for simulation recharge water to the impact of spring water quality;

Six, can be applicable to education and instruction.

Accompanying drawing explanation

Fig. 1 is the structural representation of this analogue means.

In figure: 11-first water supply bottle, 12-second water supply bottle, 13-the 3rd water supply bottle, 14-the 4th water supply bottle, 15-the 5th water supply bottle, 16-the 6th water supply bottle, 17-the 7th water supply bottle, 2-seepage flow post, 21-Fengshan in Cambrian period group, group in 22-smelting, 23-Liang Jia mountain group, 24-horse man ditch group one section, 25-horse man ditch group two sections, 26-horse man ditch group three sections, 27-horse man ditch group four sections, 28-water delivering orifice, 29-flexible pipe, 291-rigid elbow, 31-first intake, 32-second intake, 33-the 3rd intake, 34-the 4th intake, 35-the 5th intake, 4-jug, 51-first pressure tap, 52-second pressure tap, 53-the 3rd pressure tap, 54-the 4th pressure tap, 55-the 5th pressure tap, 6-piezometric tube, 7-valve, 81-the 3rd support, 82-second support, 83-first support, 831-scale, 832-clip, 9-flowmeter, 10-overflow bottle.

Embodiment

Ji'nan Springs is the representative of North China Karstic development characteristics, exposure, among Ordovician limestone stratum, is characterized in that the large and spring water quality of history culture property remote, spring point distribution centrality, the dynamic stability of spring, the uniqueness of spring forming condition, springs flow is excellent etc.The formation of Ji'nan Springs is the ingenious combination of geologic condition, structural environment and ground potential condition, creates this geographical wonder, has its uniqueness.Jinan Spring Region is a relatively independent ground water regime; its supply area is wide, storage capacity is large; it is the Typical Representative of North China Karstic development characteristics; there is extremely important scientific research value; therefore; the problems such as modeling effort karst big spring is formed, Evolution of Water Environment and water quality deterioration, mining of groundwater and supply, spring are gushed, have great importance for instructing the protection of the large spring of karst of northern.Therefore the present embodiment is for the Baotu Spring in Jinan, the formation in simulation Baotu Spring and water quality evolutionary process.

In the Fengshan group in the Cambrian period occurred in this instructions, smelting in the Ordovician period, group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four sections are also geology technical terms, specifically can with reference to geologic time scale.

The large spring protection of described a kind of karst of northern comprises water unit, head control part, seepage flow portion, water intaking portion, pressure measurement portion, spring control part and supporting component with water quality Evolution Simulation device.

As shown in Figure 1, described bracket component comprises the 3rd support 81, second support 82 and the first support 83, the 3rd described support 81, higher than the second support 82, the first described support 83 is provided with scale 831 and clip 832, and described clip 832 can move up and down along the first support 83.

Described seepage flow portion adopts the seepage flow post 2 be obliquely installed, and simulates monocline tectonic structure high in the south and low in the north.As shown in Figure 1, described seepage flow post 2 is fixed by the 3rd support 81 and the second support 82, and described seepage flow post 2 is obliquely installed, and preferably, the angle of inclination of described seepage flow post 2 is 20 °.It is 3000mm that described seepage flow post 2 adopts long, and diameter is the right cylinder tubular structure of 300mm, and preferably, described seepage flow post 2 adopts organic glass to be made.One end higher on the left of it is that opening is arranged, with atmosphere, lower one end, right side is closed, and blind end is provided with water delivering orifice 28, described water delivering orifice 28 is provided with spring control part, for simulating spring excretion, the scale 831 comprising flexible pipe 29 and be arranged on the first support 83 and clip 832, described flexible pipe 29 to go out to fail to be sold at auction height for controlling spring, further, and my transparent flexible rubber hose of described flexible pipe 29.For the ease of sampling to the test liquid of water delivering orifice 28, the upper end open place of described flexible pipe 29 is provided with rigid elbow 291, and described rigid elbow 291 is fixed on the first support 83 by clip 832, and can follow clip 832 and move up and down along the first support 83.Described rigid elbow 291 is provided with flowmeter 9, the below of described rigid elbow 291 is provided with jug 4, for collecting the test liquid of outflow, described jug 4 is provided with scale, so not only can reduce the evaporation of test liquid, water yield value can also be read timely, thus ensure the accuracy of experimental data.In order to simulate the geologic structure in Jinan, be filled with group 22, Liang Jia mountain group 23, horse man ditch group one section 24, horse man ditch group two section 25, horse man ditch group three section 26 and horse man ditch group four section of 27 7 class carbonatite in Fengshan group 21 in the Cambrian period, smelting in described seepage flow post 2 from bottom to top successively, the thickness of all kinds of carbonatite is simulated according to the geologic structure in Jinan.The top that described horse man ditch group is four section 27 is filled with the flour sand of 10mm thickness, and the distance between the upper surface of described silty sand ground to the mouth of pipe is less than 50mm.

Described water unit comprises the first water supply bottle 11, second water supply bottle 12, the 3rd water supply bottle 13, the 4th water supply bottle 14, the 5th water supply bottle 15, the 6th water supply bottle 16 and the 7th water supply bottle 17, the 7th wherein said water supply bottle 17 is built with karst water, for simulate formation karst water, and being in service position for the 7th water supply bottle 17 of simulate formation karst water always, the feed water inlet of described 7th water supply bottle 17 is positioned at below mouth of pipe 50mm place.All the other all water supply bottles are all equipped with rainwater, and intermittence supplies water as required, for simulating the supply of zones of different precipitation to different water cut layer.The present embodiment mainly carries out supply for group 22, Liang Jia mountain group 23, horse man ditch group one section 24, horse man ditch group two section 25, horse man ditch group three section 26 and horse man ditch group four section of 27 this six classes water-bearing zone in smelting, wherein organize 22 corresponding first water supply bottles 11 in smelting, corresponding second water supply bottle 14 of Liang Jia mountain group 23, horse man ditch group one section of 24 corresponding 3rd water supply bottle 13, horse man ditch group two section of 25 corresponding 4th water supply bottle 14, horse man ditch group three section of 26 corresponding 5th water supply bottle 15, horse man ditch group four section of 27 corresponding 6th water supply bottle 16.Wherein said first water supply bottle 11, second water supply bottle 12, the 3rd water supply bottle 13, the 4th water supply bottle 14 and the 5th water supply bottle 15 supply water respectively by the first pressure tap 51, second pressure tap 52, the 3rd pressure tap 53, the 4th pressure tap 54 and the 5th pressure tap 55 be arranged on seepage flow post 2 sidewall, and described 6th water supply bottle 16 is directly supplied water by seepage flow post 2 mouth of pipe.Described first pressure tap 51, second pressure tap 52, the 3rd pressure tap 53, the 4th pressure tap 54 and the 5th pressure tap 55 are provided with piezometric tube 6, described piezometric tube 6 is provided with valve 7, preferably, described piezometric tube 6 adopts organic glass to be made, and described piezometric tube 6 is provided with scale, directly can read head.As shown in Figure 1, the rising pipe of described each water supply bottle is provided with valve 7.Like this, when certain level head measured by needs, only need the valve 7 on this position piezometric tube 6 to open, then read the head of this position by the scale on piezometric tube 6, if desired simulate the precipitation of this position further, only the valve 7 of the water supply bottle corresponding with this position also need be opened.

In order to the head of assure feed water is constant, the large spring protection of described a kind of karst of northern is also provided with head control part with water quality Evolution Simulation device, described head control part comprises overflow bottle 10, the upper end of described seepage flow post 2 is provided with overflow vent, described overflow vent is arranged at the top of filled media, and described overflow vent is positioned at the top of underground karst water inlet, in experimentation, remain that the supply of underground karst water is in the state that supply exceed demand, the unnecessary karst water flow in seepage flow post by the 7th water supply bottle 17 like this can flow in overflow bottle 10 through pipeline by overflow vent, thus the head of assure feed water is constant.

In order to disclose the water quality evolutionary process of the large spring of karst of northern, precipitation infiltrates impact on karst water system water quality and spring water quality; the large spring protection of described a kind of karst of northern is also provided with water intaking portion with water quality Evolution Simulation device; so that at test liquid in the process flowing through seepage flow post; sample, thus for analyze karst big spring formed process in water quality develop process and the impact of precipitation infiltration on karst water system water quality foundation is provided.Described water intaking portion comprises the first intake 31, second intake 32, the 3rd intake 33, the 4th intake 34 and the 5th intake 35, and described first intake 31, second intake 32, the 3rd intake 33, the 4th intake 34 and the 5th intake 35 are provided with valve 7.Described the first intake 31, second intake 32, the 3rd intake 33, the 4th intake 34 and the 5th intake 35 are all arranged on the sidewall of seepage flow post 2, wherein the first intake 31 is corresponding with the bottom of Liang Jia mountain group 23, the bottom that second intake 32 and horse man ditch group are one section 24 is corresponding, the bottom that 3rd intake 33 and horse man ditch group are two section 25 is corresponding, the bottom that 4th intake 34 and horse man ditch group are three section 26 is corresponding, and the bottom that the 5th intake 35 and horse man ditch group are four section 27 is corresponding.The below of described each intake is provided with jug 4.

In order to inquire into mining of groundwater and quantity of precipitation further to the impact of spring water level, on the rising pipe of described the first water supply bottle 11, second water supply bottle 12, the 3rd water supply bottle 13, the 4th water supply bottle 14, the 5th water supply bottle 15, the 6th water supply bottle 16 and the 7th water supply bottle 17 and on the first intake 31, second intake 32, the 3rd intake 33, the 4th intake 34 and the 5th intake 35, be provided with flowmeter 9.

The protection of a kind of karst of northern large spring comprises following step with water quality Evolution Simulation method:

The first step, preparation is for examination water sample and percolating medium, and concrete operations are as follows:

A1, respectively by the Cambrian period Fengshan group, group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four section of seven class carbonatite knock fragmentation in smelting in the Ordovician period, make particle diameter <0.2cm, respectively it is dried, then respectively it is weighed, then group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four sections of priorities in the Fengshan group in the Cambrian period after oven dry, smelting are loaded in seepage flow post successively;

A2, rainwater and karst water are used the removal of impurities of 0.45um filtering with microporous membrane respectively.

Second step, according to the analogue means structural representation shown in Fig. 1, assembling experimental provision, and measure the internal diameter of seepage flow post.

3rd step, simulation horse man ditch group four sections of precipitation recharges, concrete operations are as follows:

B1, open the 7th water supply bottle and the 6th water supply bottle valve, close the valve of the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and close the valve on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle;

B2, regulate water supply flow, and rainwater in the 6th water supply bottle keeps that supply exceed demand, avoids occurring cutout, makes for examination water saturation seepage flow post;

B3, close the valve of all intakes, only open the water delivering orifice of right side simulation spring, the position of the rigid elbow of fixed-analog spring outlet, and height is lower than 1026mm, after this water delivering orifice stability of flow, the valve opening the first intake, the second intake, the 3rd intake, the 4th intake and the 5th intake is successively sampled, and is water sample 1, water sample 2, water sample 3, water sample 4 and water sample 5, after sampling, close the valve of each intake.

B7, open the valve of the first intake, the valve of all the other intakes keeps closed condition, and the flow setting the first intake is respectively Q1, Q2 and Q3, then measures the head of spring position, right side and spring flux situation and each pressure tap in corresponding situation, and record;

B8, according to the data obtained in step b6, draw spring position and the spring flux change curve with the first intake flow, and seek when affecting little on spring position and spring flux, the maximum flow of the first intake, and record;

B9, open the valve of the second intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7 and b8;

B10, open the valve of the 3rd intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7 and b8;

B11, open the valve of the 4th intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7 and b8;

B12, open the valve of the 5th intake, the valve of all the other intakes keeps closed condition, repeats the operation in step b7 and b8;

B13, the flow setting each intake are Q1, open the first intake and the second intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B14, the flow setting each intake are Q1, open the first intake and the 3rd intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B15, the flow setting each intake are Q1, open the first intake and the 4th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B16, the flow setting each intake are Q1, open the first intake and the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B17, the flow setting each intake are Q1, open the first intake, the second intake and the 3rd intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B18, the flow setting each intake are Q1, open the first intake, the second intake and the 4th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B19, the flow setting each intake are Q1, open the first intake, the second intake and the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B20, the flow setting each intake are Q1, open the first intake, the second intake, the 3rd intake and the 4th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B21, the flow setting each intake are Q1, open the first intake, the second intake, the 3rd intake and the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B22, the flow setting each intake are Q1, open the first intake, the second intake, the 3rd intake, the 4th intake, the 5th intake respectively, then measure the head of spring position, right side and spring flux situation and each pressure tap, and record;

B23, the flow setting each intake are respectively Q2 and Q3, then repeat the operation of b3-b21;

B24, according to b13-b23 the data obtained, determine best array mode, and probe into rational mining of groundwater layout in conjunction with the analysis of b8-b12 the data obtained.

4th step, simulation horse man ditch group four sections and horse man ditch group three sections precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the 5th water supply bottle, close the valve of the first water supply bottle, the second water supply bottle, the 3rd water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b24.

5th step, simulation horse man ditch group four sections and horse man ditch group two sections precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the 4th water supply bottle, close the valve of the first water supply bottle, the second water supply bottle, the 3rd water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the second water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b24.

6th step, simulation horse man ditch group four sections and horse man ditch group one section precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the 3rd water supply bottle, close the valve of the first water supply bottle, the second water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the second water supply bottle, the 4th water supply bottle, then repeat the operation of b3-b24.

7th step, simulation horse man ditch group four sections and Liang Jia mountain group precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the second water supply bottle, close the valve of the first water supply bottle, the 3rd water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the first water supply bottle, the 3rd water supply bottle, the 4th water supply bottle, then repeat the operation of b3-b24.

8th step, organize precipitation recharges simultaneously in simulation horse man ditch group four sections and smelting, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle and the first water supply bottle, close the valve of the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle and the 5th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 5th water supply bottle to the second water supply bottle, the 3rd water supply bottle, the 4th water supply bottle, then repeat the operation of b3-b24.

9th step, simulation horse man ditch group four sections, horse man ditch group three sections and horse man ditch group two sections precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the 4th water supply bottle, close the valve of the first water supply bottle, the second water supply bottle and the 3rd water supply bottle, and the valve of closing on the piezometric tube corresponding with the 3rd water supply bottle to the first water supply bottle, the second water supply bottle, then repeat the operation of b3-b24.

Tenth step, simulation horse man ditch group four sections, horse man ditch group three sections and horse man ditch group one section precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the 3rd water supply bottle, close the valve of the first water supply bottle, the second water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the first water supply bottle, the second water supply bottle, then repeat the operation of b3-b24.

11 step, simulation horse man ditch group four sections, horse man ditch group three sections and Liang Jia mountain group precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the second water supply bottle, close the valve of the first water supply bottle, the 3rd water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the first water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b24.

11 step, group precipitation recharges simultaneously in simulation horse man ditch group four sections, horse man ditch group three sections and smelting, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle and the first water supply bottle, close the valve of the second water supply bottle, the 3rd water supply bottle and the 4th water supply bottle, and the valve of closing on the piezometric tube corresponding with the 4th water supply bottle to the second water supply bottle, the 3rd water supply bottle, then repeat the operation of b3-b24.

12 step, simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections and horse man ditch group one section precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle and the 3rd water supply bottle, close the valve of the first water supply bottle and the second water supply bottle, and the valve of closing on the piezometric tube corresponding with the second water supply bottle to the first water supply bottle, then repeat the operation of b3-b24.

13 step, simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections and Liang Jia mountain group precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle and the second water supply bottle, close the valve of the first water supply bottle and the 3rd water supply bottle, and the valve of closing on the piezometric tube corresponding with the 3rd water supply bottle to the first water supply bottle, then repeat the operation of b3-b24.

14 step, group precipitation recharges simultaneously in simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections and smelting, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle and the first water supply bottle, close the valve of the second water supply bottle and the 3rd water supply bottle, and the valve of closing on the piezometric tube corresponding with the 3rd water supply bottle to the second water supply bottle, then repeat the operation of b3-b24.

15 step, simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections, horse man ditch group one section and Liang Jia mountain group precipitation recharges simultaneously, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle, the 3rd water supply bottle and the second water supply bottle, close the valve of the first water supply bottle, and the valve of closing on the piezometric tube corresponding to the first water supply bottle, then repeat the operation of b3-b24.

16 step, group precipitation recharges simultaneously in simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections, horse man ditch group one section and smelting, concrete operations are as follows:

Open the valve of the 7th water supply bottle, the 6th water supply bottle, the 5th water supply bottle, the 4th water supply bottle, the 3rd water supply bottle and the first water supply bottle, close the valve of the second water supply bottle, and the valve of closing on the piezometric tube corresponding to the second water supply bottle, then repeat the operation of b3-b24.

17 step, group precipitation recharges simultaneously in simulation horse man ditch group four sections, horse man ditch group three sections, horse man ditch group two sections, horse man ditch group one section, Liang Jia mountain group and smelting, concrete operations are as follows:

Open the valve of all water supply bottles, then repeat the operation of b3-b24.

18 step, analyzes experimental data

The coefficient of permeability K of c1, calculating different time

By Darcy formula

Q = K A J = K A \frac{Δ H}{L},

Can derive

K = \frac{Q L}{A Δ H}

In formula, Q is water delivering orifice seepage flow (m ³/ s);

A is flow section area (m ²);

Δ H is head difference (m);

L is that test liquid flows through distance (m);

The data obtained by step b5 in the 3rd step to the 17 step can calculate seepage flow Q and the head difference Δ H of each time period water delivering orifice, can calculated flow section area A by the internal diameter of the seepage flow post measured by second step, be that test liquid flows through distance L by the length of seepage flow post, just can be calculated the infiltration coefficient of different time under different precipitation recharges like this by above-mentioned data.

C2, the infiltration coefficient oozing out different time under the different precipitation recharges that electrical conductivity of water, temperature and step c1 obtain obtained according to step b5 in the 3rd step to the 17 step, draw infiltration coefficient, conductivity, the water temperature duration curve in different precipitation supply situation.

The ion concentration for nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc. in examination water sample that in c3, the water seepage of different time that obtains according to step b5 in the 3rd step to the 17 step, in the ion concentration of nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc. and step the three step to the 17 step, step b6 obtains, the ion concentration of drawing in different precipitation supply situation lasts change curve.

The ion concentration of nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc. in c4, the water seepage of different time that obtains according to step b5 in the 3rd step to the 17 step, by the hydrogeochemical process that phreeqc simulation softward simulation test liquid is occurred in time when flowing through seepage flow post.

The ion concentration of nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc. in c5, the water seepage at different intake places that obtains according to step b4 in the 3rd step to the 17 step, by phreeqc simulation softward inverting test liquid in different precipitation supply situation occur in the process flowing through seepage flow post hydrogeochemical process.

The ion concentration of nitrate radical, sulfate radical, chlorion, heavy carbonic root, sodion, calcium ion, magnesium ion etc. in c6, the water seepage of different time that obtains according to step b5 in step the three step to the 17 step, Piper trilinear chart in different precipitation supply situation and ion milligramequivalent and salinity correlation curve figure is obtained by analysis software, thus for being parsed into because providing foundation.

C7, calculating dispersion coefficient D _l

The computing formula of dispersion coefficient is

D_{L} = \frac{1}{8} {[\frac{x - {ut}_{0.1587}}{\sqrt{t_{0.1587}}} - \frac{x - {ut}_{0.8413}}{\sqrt{t_{0.8413}}}]}^{2}

In formula, x is the distance m that test liquid is migrated in cylinder;

U is C/C ₀percolation flow velocity m/s corresponding when being 0.5;

T _0.1587, t _0.8413be respectively C/C ₀be 0.1587, time s corresponding when 0.8413.

19 step, according to the further exploration and analysis of the 6th analysis of step to data,

(1), the change of karst water system water quality in simulated precipitation supply different water cut layer situation;

(2), in simulated precipitation supply different water cut layer situation, precipitation infiltration is on the impact of spring water quality;

(3), according to the water between observation data computational analysis rainwater, underground water and water-bearing zone-rock effect;

(4) the mining of groundwater layout of different karst aquifer, is simulated on the impact of spring position;

(5), by precipitation change surface water into, the evolution of recharging rear spring water quality can be simulated.

Claims

1. the large spring protection of karst of northern and a water quality Evolution Simulation device, is characterized in that:

Comprise water unit, seepage flow portion and spring control part;

Described seepage flow portion comprises seepage flow post and supporting mechanism;

Percolating medium is filled with in described seepage flow post;

Described each intake is provided with flowmeter and valve;

2. the large spring protection of a kind of karst of northern according to claim 1 and water quality Evolution Simulation device; it is characterized in that: described percolating medium is taken from the Cambrian period upper system and unites to the Ordovician period stratum, described percolating medium comprise fill successively from bottom to top Fengshan group in the Cambrian period, group, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four section of seven class carbonate formation in smelting in the Ordovician period.

3. the large spring protection of a kind of karst of northern according to claim 2 and water quality Evolution Simulation device, is characterized in that: described each pressure tap is arranged at the top of group in smelting, Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections and horse man ditch group three sections respectively.

4. the large spring protection of a kind of karst of northern according to claim 2 and water quality Evolution Simulation device, is characterized in that: described each intake is arranged at the lower end of Liang Jia mountain group, horse man ditch group one section, horse man ditch group two sections, horse man ditch group three sections and horse man ditch group four sections respectively.

5. the large spring protection of a kind of karst of northern according to claim 2 and water quality Evolution Simulation device, is characterized in that: described rainwater device for supplying comprises the first water supply bottle, second water supply bottle, 3rd water supply bottle, 4th water supply bottle, 5th water supply bottle and the 6th water supply bottle, described first water supply bottle, second water supply bottle, 3rd water supply bottle, 4th water supply bottle, 5th water supply bottle and the 6th water supply bottle are all equipped with rainwater, and described first water supply bottle is communicated with the piezometric tube organizing top in smelting, described second water supply bottle is communicated with the piezometric tube above the group of Liang Jia mountain, the piezometric tube of described 3rd water supply bottle and horse man ditch group one section of top is communicated with, the piezometric tube of described 4th water supply bottle and horse man ditch group two sections of tops is communicated with, the piezometric tube of described 5th water supply bottle and horse man ditch group three sections of tops is communicated with, described 6th water supply bottle is communicated with the upper end open of seepage flow post, the first described water supply bottle, second water supply bottle, 3rd water supply bottle, 4th water supply bottle, 5th water supply bottle and the 6th water supply bottle rising pipe are provided with valve and flowmeter.

6. the large spring protection of a kind of karst of northern according to claim 1 and water quality Evolution Simulation device; it is characterized in that: described supporting mechanism comprises the second support and the 3rd support; described second support is connected with the two ends of seepage flow post respectively with the 3rd support, and described 3rd support is higher than the second support.

7. the large spring protection of a kind of karst of northern according to claim 1 and water quality Evolution Simulation device, is characterized in that: the angle of inclination of described seepage flow post is 20 °.

8. the large spring protection of a kind of karst of northern according to claim 1 and water quality Evolution Simulation device, is characterized in that: described piezometric tube and seepage flow post all adopt transparent organic glass material, and described piezometric tube is provided with scale.

9. the large spring protection of a kind of karst of northern according to claim 1 and water quality Evolution Simulation device, is characterized in that: described flexible pipe is transparent colloid flexible pipe, and the opening part of described flexible pipe is provided with rigid elbow, and described rigid elbow is provided with flowmeter.

10. utilize the large spring protection of a kind of karst of northern described in claim 1-9 any one claim and a water quality Evolution Simulation method, it is characterized in that:

Comprise the following steps,

B7, open the valve of the first intake, the valve of all the other intakes keeps closed condition, the flow setting the first intake is respectively Q1, Q2 and Q3, the head of spring position and spring flux situation and each pressure tap on the right side of when stablizing under then measuring corresponding situation, and record;

B22, the flow setting each intake are respectively Q2 and Q3, then repeat the operation of b3-b21;