cobblestone[1]It is named because it looks like a goose egg.Pebble as a pure naturalStone, taken from thecrustal movementLater produced by the uplift of the ancient river bedsandIn the mountains, there are continuous extrusion and friction in the process of mountain torrent impact and flowing water transportation.
In the course of hundreds of millions of years of vicissitudes, pebbles have experienced the movement of waves and waterGravelThe collision and friction lost the irregular edges and corners, and they were buried in the ground together with the sediment for millions of years.
mainchemical compositionyessilicon dioxide, followed by a small amount offerric oxideAnd trace manganese, copper, aluminum, magnesium and other elements and compounds.They have different pigments, such as red for iron, blue for copper, purple for manganese, yellowtranslucentIt is silica colloidal pith, jadeite containing green minerals, etc;Due to the different types and contents of these pigment ions dissolved in the silica hydrothermal solution, the pebbles show various colors, such as black, white, yellow, red, dark green, and cyan.
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cobblestone[1]Products include: machine-made pebbles in natural colorsRiver pebble、Riverstones、Dry claystone, spraying stone, landscaping stoneWood fossil、Culture stone, naturalChromoliteIt is non-toxic, tasteless and non decolorizing, and is used for building decoration materials such as rice and advanced dyeing sand for interior decoration.Hard quality, bright and simple color, with compression resistance, abrasion resistance and corrosion resistanceNatural stoneCharacteristic is an idealGreen building materials。
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Architecture
cobblestone[1]Widely used inPublic buildings, villas, courtyard buildings, paved roads (cobblestone roads often paved in the park have the effect of prolonging life), park rockeriesbonsaiFiller material、Garden artAnd other high-level superstructure.It not only carries forward the ancient oriental culture, but also reflects the western classical, elegant, primitive artistic style.
Garden function
cobblestone
cobblestone[1]It not only provides high-quality materials for water purification, sewage treatment, power, garden and other projects.Also for ceramicsprecision casting , papermaking, jet milling, chemical industrymonocrystalline silicon, national defense, etcRaw and auxiliary materials。
according toassociated pressIt is reported that the cobblestone path is more conducive to your health and can lower your blood pressure.According to the United StatesOregonA new research result of the research institute shows that people over 60 years old walk on the smooth cobblestone path for half an hour every day. After four months of continuous walking, theirhypertensionWill be significantly reduced, and their bodyBalance abilityandCoordinationThey have also improved significantly.
Oregon InstituteBehavioral researchThe staff saw that the Chinese people in the traditionalCobble roadAfter up and back exercise and walking, the health effect of pebbles is improvedResearch。John Fisher, who led the research, said: "We found that in several cities we visited, people were walking on cobbled roads, some people stood on them, sometimes they danced on them, and even some people were lifting weights on cobbled roads. We thought if we couldscientific researchIf so, we can find out whether they are really healthy. "
Fisher and his colleagues were surprised by the results of the study. They had expected to see some general improvement in health by exercising on the cobblestone road, but in the 16 week study, they found that the blood pressure of volunteers also dropped.be locatedportland Dr. David Ellison, chief hypertension research expert at Oregon University of Health Sciences, said: "The research results are very exciting. I'm not surprised if they lose 10 pounds after two years of exercise on cobblestone roads. Go to exercise now, it will really happenDramatic"
100 peoplesimulation experimentBeneficial researchers also carried out simulation experiments. They put simulated round pebbles on a specially designed cushion that was 6 feet long and 1.5 feet wide. Some volunteers walked barefoot on it, while others wore socks.They were compared with another controlled group that did not walk on the mat. The volunteers in this controlled group walked only one hour a day, three times a week.The results were published in the latest issue of the American Geriatric Society.
Fisher said that almost all 108 volunteers said that they felt better after exercise, but half of them, that is, those who walked on the cobblestone, had significantly improved their balance, physical flexibility and blood pressure.Fisher pointed out that cobbles are very common in Chinatraditional medicine In theory, the uneven stone surface can stimulate the acupoints on the sole of the foot.This theory is similar to acupuncture, that is to say, although many parts of the body are very close and some are far away, they are connected by acupoints. Stimulating these acupoints can improve physical and mental health.Why can balance be improved Although the history of Chinese people walking on cobblestones can be traced back to several centuries ago, the research on this fitness method was still blank before that.
Fay Horak, a neurophysiologist at Oregon University of Health Sciences, said that the study provided evidence for the view that maintaining the flexibility and balance of the body can delay or prevent human aging.He said, "I'm not surprised that this kind of fitness method has the effect of improving body balance. There is a lot of evidence that no matter who you are, if you dare to challenge, your balance ability will improve." Horak explained that the human body relies on two complex methods to maintain balance, one is in the inner earVestibular systemOne is the somatosensory system that connects skin with bone and flesh.Generally, 70% of the balance control of the human body depends on the somatosensory system, and 30% depends on the vestibular system.However, when the road surface is uneven or unstable, the body becomes dependent on the vestibular system. At this time, about 70% of the balance control of the body depends on the vestibular system.
Horak said, "This kind of fitness method is very useful for the elderly, because as we grow older, the vestibular systemreceptorIt will lose, but you often walk on uneven or unstable roads. In fact, you are actively using the vestibular system, and its function may be improved as a result.
The "Healthy Road" is not suitable for everyone. Four types of people should not step on pebbles
Q:Fitness GardenThere is a cobblestone "healthy road", and occasionally I will go barefoot. Although the soles of my feet are very painful, I think it will definitely have an effect.It's said that "Healthy Road" is not suitable for everyone. What's the point?
Answer: Barefoot treading on cobblestone pavement can stimulate plantar acupoints, dredge plantar blood channels, exercise plantar muscles, and enhance the stability of lower limbs.However, because treading on the "healthy road" is a strong stimulus to the sole of the foot, it is generally only suitable for short time practice.
When stepping on cobblestone pavementsoft soleShoes or barefoot, hard and thickShoe clubBlock the massage effect of pebbles on the sole of the foot.When practicing, you can take turns to step on the foot with small steps to feel the squeezing of pebbles on the sole of your foot.Learn to grasp the road with your toes to avoid too much weight on the soles of your feet concentrating on the heel and forefoot.Due to long-term wear of shoes, the weight bearing and grasping functions of human toes, especially the outer toes, are in a semi degraded state. Through this exercise, the plantar muscles can be exercised and the weight bearing stability of the feet can be enhanced.During the exercise, you should feel comfortable on the soles of your feet and have a feeling of massage.IfPainObviously, you should wear soft soled shoes to practice, or reducePractice time。
The road conditions of "Healthy Road" are also particular.The cobblestone is too sparse and uneven, which not only has poor massage effect on the sole of the foot, but also is easy to hurt the practitioner.Dense and small cobbles are preferred on the pavement. Dense cobblestone pavement can make the load on the sole even and reduce the pain of the sole.
The following four categories of people should not take the "healthy road":
one
Parkinson's diseasePatients with cerebellar balance impairment and cervical spondylotic myelopathy cannot control their steps, so they must not do such exercises.
2. More seriouship joint、Knee arthropathyFor the patient, because the joint is not flexible, the uneven road surface will increase the load on the joint, and aggravate the jointLesion。
3. People who have been in bed for a long time or have been fixed for a long time due to limb injuryMuscle strengthLack. It may be dangerous to carry out this kind of exercise at the beginning of walking practice.
4. Causenervous systemPatients with lower limb muscle weakness caused by diseases should not take this exercise.
In addition, pebble resources are also abundant in other regions, including ShandongLiaoningIn the south, including Guizhou, Chongqing, Guangxi and other places, pebble resources have their own characteristics and are rich in types.
The pebble resources in Guizhou and Guangxi are well preserved and rich in variety due to historical reasons.
There are many large pebbles in southwest China, which are large in volume and strange in shape, and are especially suitable for geomantic stone or cultural stone used as landmark buildings.
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Formation process
cobblestone
That is, it can be scoured by the river, but it can also rub against each other.Pebbles may be caused by historical floodsDebris flowIt is caused (because it is usually in the mountain area), but the specific reason depends on theregeological structure 、geographical environmentIt is also necessary to refer to the situation of other mountains around.About 100 million years agomesozoic, oncrustal movementUnder the action ofMagmaGranite is formed.Since then, thousands of years ago, due to magma intrusionGraniteStaggerA large number of small stones were produced by squeezing. The stones near the water eventually formed today's cobbles after a long period of slow water scouring and self rolling.Some experiencesWeatheringLaterRounding, becoming pebbles[1]。
Detailed causes
Pebble is formed gradually after a long time
Due to crustal movement, etcnatural forceAfter the impact of mountain torrents, water transportation andsandAfter repeated rolling and friction, lovely round pebbles are finally formed.
The formation process of pebble can be divided intoTwo stagesThe first stage isRock weatheringCollapse stage;The second stage is the stage when rocks are transported and rounded by river water in the river.
The pebbles containing small stones are brokenRock block, vialong distanceThe edges and corners will disappear during transportation to form round or oval stones (or pebblesGravel）The cemented rock is called gravel.
It turned out to be thick and big rocks, but after millions of years of rain wash and mutual collision, they became clear pieces of beautiful pebbles.
