How to detect groundwater, how to find groundwater?

There are several different methods for groundwater exploration, including:

1.Geological Prospecting: Geological prospecting is a method of using geological boreholes to understand the geology of the subsurface. This method can be used to find groundwater, including springs, rivers, lakes, and oceans.

2.Geophysical Prospecting: Geophysical prospecting is a method of using physical principles to explore groundwater. These include gravity exploration, magnetic exploration, electrical exploration, etc. These methods can be used to find groundwater, oil, natural gas, etc.

3.Water level measurement: Water level measurement is a method of measuring the water level using a water level gauge. This method can be used to understand the dynamics of groundwater, including changes in water levels, direction of water flow, etc.

4.Water sample analysis: Water sample analysis is a method of analyzing the composition of groundwater using analytical instruments. This method can be used to understand the chemical composition, physical properties and biological communities of groundwater, among other things.

It should be noted that groundwater detection requires a certain amount of professional knowledge and skills, as well as attention to safety. If you need to know more about groundwater detection, it is recommended to consult a professional or relevant department.

Detect with a groundwater sounder. Groundwater detector is used for exploration and search for bedrock water, fracture water, karst water, etc., and the known methods for detecting groundwater include indirect water finding method and direct water finding method. Indirect groundwater detection methods include electrical, magnetic, gravity and other geophysical prospecting methods; The direct water finding method is the nuclear magnetic resonance method.

Electric water finding is still the most economical, effective and widely used method among all kinds of water finding methods.

If you want to find groundwater, you must first look at the mountains, and in the alpine areas, the main source of groundwater is the natural storage of water. It is water that seeps into the ground and stores when it usually rains. However, such places are characteristic, such as the ring-shaped mountain at the top, so there will inevitably be springs overflowing at the bottom of the mountain or halfway up the mountain, and of course, the flow will be smaller or dry up in times of severe drought.

If there is still a trace of running water or dampness in that place, there is a way to let the water stored in the mountains flow out of it. If I just said that I could get the flow out with fire, people wouldn't believe it, and they would say that I was a madman. Although, since ancient times, water and fire are incompatible, water and fire are always mutually compatible.

But sometimes they can really get together. I once saw that when people in the mountains burned charcoal, there was always water flowing out of the newly built charcoal kiln. If you choose a place that is not cool, there will always be water flowing out of the side of the charcoal kiln.

I slowly realized the truth when I couldn't figure it out.

When the charcoal is burned, the kiln generates a large amount of heat, which absorbs a large amount of surrounding water and turns it into water vapor. Because it is constantly absorbing and evaporating, the water in the ground forms a state of flow, and gradually searches the channel in front of it. So the water in it flowed out.

This is also the principle of ancient shamans praying for rain. Because the pilgrims always burn paper and incense at the outlet of the spring, which causes the flow of water in the ground.

There are places where water-loving plants such as maran, reed, salix, algae, banana and other water-loving plants grow The groundwater is shallow and abundant. 3. The amount of groundwater in hilly areas is small, and the groundwater in low-lying basins is more abundant. From the perspective of burial depth, generally speaking, the groundwater burial depth in the intermountain basin is shallower, and the groundwater burial depth in the mountainous and hilly areas is larger.

In general, it is easier to find groundwater by digging down the dry channel in low-lying areas.

"The easiest place to find groundwater: Animals and plants generally grow in places with suitable water sources. The formation of groundwater is closely related to topographic and geomorphological conditions.

If two mountains are sandwiched between a mouth, there must be spring water", that is, the front of the hill sandwiched between the two mountains, and the spring can generally be found. Groundwater under the influence of changes in external temperature

Groundwater testing items include: chromaticity.

turbidity; smell and smell; residual chlorine; Chemical oxygen demand.

The higher the chemical oxygen demand, the more organic pollutants there are in the water. Organic pollutants in water are mainly produced by the discharge of domestic sewage or industrial wastewater, and the decomposition of animals and plants. ​

Groundwater refers to the water that exists in the voids of rocks below the ground, and in a narrow sense, it refers to the water in the saturated aquifer below the surface of the groundwater. In the national standard "Hydrogeological Terminology" (GB T 14157-93), groundwater refers to gravity water buried below the surface of the earth.

Foreign scholars believe that there are three definitions of groundwater: one refers to all the water buried in groundwater that is significantly different from surface water, especially the part of water in the saturated zone of the aquifer; the second is to flow downwards or infiltrate to saturate the soil and rocks and replenish water from springs and wells; The third is the water stored in the rocky cavities in the ground, in the voids that make up the earth's crustal material.

Groundwater is an important part of water resources, and it is one of the important water sources for agricultural irrigation, industrial and mining and urban areas due to its stable water volume and good water quality. However, under certain conditions, changes in groundwater will also cause unfavorable natural phenomena such as swamping, salinization, landslides, and land subsidence.

The main items of groundwater testing are: 1. Chromaticity: Most people can detect the chromaticity of drinking water if it is greater than 15 degrees, and people feel disgusted when it is greater than 30 degrees.

The standard stipulates that the color of drinking water should not exceed 15 degrees. 2. Turbidity: It is an expression of the optical properties of water samples, which is used to indicate the degree of clarity and turbidity of water, which is one of the most important indicators to measure the good degree of water quality, and is also an important basis for assessing the purification efficiency of water treatment equipment and evaluating the status of water treatment technology.

The reduction of turbidity means that the content of organic matter, bacteria, viruses and other microorganisms in the water body is reduced, which can not only improve the disinfection and sterilization effect, but also help reduce the amount of halogenated organic matter. 3. Odor and taste: The production of water odor is mainly the presence of organic matter, which may be caused by the manifestation of increased biological activity or industrial pollution.

A change in the normal odor of a public water supply can be a sign of a change in the quality of the raw water or inadequate water treatment. 4. Residual chlorine: Residual chlorine refers to the amount of chlorine remaining in the water after chlorination and disinfection for a certain period of time.

It has a continuous sterilization ability in the water to prevent the self-contamination of the water supply pipeline and ensure the quality of the water supply. 5. Chemical oxygen demand: refers to the amount of oxygen required by chemical oxidants to oxidize organic pollutants in water.

The higher the chemical oxygen demand, the more organic pollutants there are in the water. Organic pollutants in water are mainly produced by the discharge of domestic sewage or industrial wastewater, and the decomposition of animals and plants.

Hello friends, the detection of groundwater, it is a part of the water quality testing, water is the source of life, human beings are inseparable from water in life and production activities, the quality of drinking water is closely related to human health, with the economic development of the social and air bureau, scientific progress and the improvement of people's living standards, people's requirements for the quality of drinking water continue to improve, drinking water quality standards are also correspondingly developing and improving, due to the formulation of drinking water quality standards and people's habits of life and loss, Cultural and economic conditions, the level of scientific and technological development, water resources and their current status and other factors, not only between countries, but also between different regions of the same country There are differences in the requirements for English water quality.

The testing scope of water quality includes sewage, pure water, seawater, bottled pure water, cooling water, farmland irrigation water, landscape water, domestic drinking water, groundwater, boiler water, surface water, industrial water and many more.

The indicators tested are color, pH, turbidity, odor and taste, visible to the naked eye, residual chlorine, chemical oxygen demand, total bacterial count, total coliform bacteria, heat-resistant coliform bacteria, etc., thank you.

What are the groundwater monitoring projects?

Groundwater is water stored in the voids of the strata below the aeration zone, including rock pores, fissures and karst caves. Groundwater is an important part of water resources, and it is one of the important water sources for agricultural irrigation, industrial and mining and urban areas due to its stable water volume and good water quality.

According to the requirements of GB T14848-93, there are 39 basic routine testing items for groundwater environment, including color, manganese, ammonia nitrogen, beryllium, smell and taste, copper, fluoride, barium, turbidity, zinc, iodide, nickel, visible to the naked eye, molybdenum, cyanide, DDT, pH, cobalt, mercury, and six.

Six. 6. Total hardness (based on CaCO3), volatile phenols, selenium, total Enterobacteriaceae, total dissolved solids, anionic synthetic detergent, arsenic, total number of bacteria, sulfate, permanganate index, cadmium, chloride, nitrate, chromium (hexavalent), iron, nitrite, lead.

1. Sensory traits and general chemical indicators:

Color, smell and taste, turbidity, visible to the naked eye, pH, total hardness, total dissolved solids, sulfates, chlorides, iron, manganese, copper, zinc, aluminum, volatile phenols, etc.;

2. Microbial indicators:

total coliform bacteria, total number of colonies;

3. Toxicological indicators:

Arsenic, selenium, cadmium, hexavalent chromium, lead, chloroform, carbon tetrachloride, beryllium, boron, antimony, barium, nickel, cobalt, molybdenum, silver, thallium, trichloroethane, trichloroethylene, tetrachloroethylene, dichloromethane, dichloroethane, dichloropropane, tribromomethane, vinyl chloride, dichloroethylene, chlorobenzene, benzene, toluene, dinitrotoluene, naphthalene, anthracene, fluoranthene, benzo(a)pyrene, total PCBs, hexahexane, -six.

Six. 6. DDT, hexachlorobenzene, heptachlor, glyphosate, etc.

According to the local hydrogeological conditions, if the terrain is flat, the strata are roughly horizontally distributed, etc., it is easier to construct a model and the distribution of groundwater, but if it is a more complex geological structure such as karst landform, it may be drilled no matter how dense it is, and it is also possible to miss large karst caves and other structures that have a greater impact on groundwater flow, so it is more difficult to build a model.

However, the development of new technologies, such as ground penetrating radar, can make it particularly easy to detect the distribution of groundwater levels in the area and avoid the expense of drilling. New technologies have their applicability and limitations, and in practice, they generally need to be compared and corrected with actual values.

There are nearly 70 cities in the country due to unreasonable exploitation of groundwater induced land subsidence, the subsidence range of 10,000 square kilometers, the maximum subsidence of the subsidence center of more than 2m in Shanghai, Tianjin, Taiyuan, Xi'an, Suzhou, Wuxi, Changzhou and other cities, Tianjin Tanggu subsidence reached.

Land subsidence in Xi'an, Datong, Suzhou, Wuxi, Changzhou and other cities is accompanied by ground fissures, posing a serious threat to urban infrastructure. The areas where ground fissures occur also include Hebei, Shandong, Yunnan, Guangdong, Hainan and other places.

Dear, hello, I am glad to answer for you, how to detect the direction of underground water pipesAnswer: First of all, if it is not particularly accurate, according to the developer on the blank to draw the line to the plumber can roughly see the direction. The second method is knocking, which is also empirical and not too accurate.

Another way to do this is to use tools, a line gauge and wire. First of all, find out the general direction of each pipeline, so that you know it in your heart. It can be done through the first two methods.

Then thread the wire into the pipe and use the rangefinder to approach the wall. Determine whether it is a path or not by sound and label it. In the case of the project, I look at the distance between the location of the pipeline out of the house and the well in Suizhou, and I use an instrument to measure the flow of water electronically if I am accurate.

Dear, I am glad to serve you, and the answers are as follows: how to detect whether there is water in the ground: 1. According to the principle of "back, oblique" a heavy Zen disturbance; Faults are generally difficult to obtain water, the fault plane is fragile and cracked, water will seep down, naturally, no matter how the well is drilled, it will not upwell; The "anticline" is "convex" in shape, and the rock in the middle is hard and higher than the average thickness of the carry, so it is futile to dig a well at such a site. 2. If the vegetation of the "anticline" mountain is relatively sparse, the vegetation of mosses will generally be relatively rich. The "oblique" is of the "concave" type, obviously, the water seeps into the bottom of the rock, and the effect of drilling a well from above is better, not only the workload is less, but also the water source is continuous.

That well, measuring natural gamma, natural potential, bilaterally, can be prepared to find the water layer!

Groundwater can be divided into phreatic and confined water, as shown in Figure 1

Water is the source of life, and our lives cannot be separated from water. So how do we find water? Here's a quick introduction to how to find water.

Diving: Most of the water we dig for water is diving, buried above the aquifer below the surface, and the more stable gravity water with a free surface is called diving. The free surface of diving, which bears atmospheric pressure, is affected by climatic conditions, and the seasonal variation is obvious, but the water quality is easily polluted, and the diving is mostly in low-lying places.

Pressurized water: Water that is subjected to a certain pressure and can produce spring or artesian water. Such as: Jinan Baotu Spring.

Geological structure: Affected by faults, some of them have open water outcrops at the foot of the mountain or halfway up the mountainside.

In the anticlinal structure, oil is the same as water, anticline oil storage is inclined to store water, and rainwater is collected and stored in the oblique structure through the seepage of the surface.

Plant Identification: Trees or flowers that like water, once they exist in nature, indicate that the water is not buried deeply, and it is easy to obtain water. Especially in arid and semi-arid regions, it is a good guide.

Weather Signs: In the morning or when the temperature is relatively low, there is moisture or fog on the surface of the ground, which also indicates that the water is not buried deep and is easy to obtain.

The search for groundwater is mostly based on topography and landform.

First, according to the flow direction of the water, low-lying areas are relatively easy to find, low-lying places can accumulate groundwater or when the flow rate is low, there will be a large amount of groundwater seeping into the ground.

The two valleys sandwiched between the two mountains are mainly inclined to the middle of the slopes of the two mountains, and the water flows along the slope to the ditch to converge to form groundwater, which can be drilled out by drilling wells.

Third, the intersection of the two ditches is easy to form groundwater, and fourth, the two mountain ravines are sandwiched and lonely mountains, blocking the valley, blocking the groundwater, making it converge, and it is easy to form the groundwater formed by the spring flow.