seawall is built of false tidal dam, namely also momentous apt China's southeastern coastal areas of the barrier. Seawall has been two thousand years of history, effectively in Jiangsu and Zhejiang provinces.
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About the history of the origin of scales Tong, Yuan Qing Dynasty ahead the seawall seawall Ming Tong, rugged and durable military role profile scales from the south of the Yangtze River estuary to the northwardly of Yong River mouth, about six hundred km segment of the history of Shuji converge, particularly in the north shore of the Qiantang River mouth forward the seawall construction is maximum advantageous. Tall stone seawall by hundreds of kilometers of winding seashore, simply spectacular. Seawall originated in the Qiantang River mouth, which is decided by natural conditions. Tide of the Qiantang River mouth area especially, there is the famous Qiantang tide. Li Tao Yuan Dynasties geographer once brief detailing of ink try to lure guests: Tao of water day and night anew. To be forever, constantly dark and look particularly large month. August to February, the maximum, more than nijo Mindanao Mindanao. Try to lure visitors of course, is nature's scenery, yet also reasoned colossal harm to coastal areas. Song Jiading years (1219), Haining County, this land South forty years, but had the tide and fell into the sea. In increase, the town of Haiyan of looking the sea, the tide has also been swallowed whole. Today, the seawall is still the Yangtze River Delta economy region of the coastal barrier. Origin of the earliest written records found in the seawall of the Han Dynasty Geographer Li Tao Yuan Dynasties introduces So he spread everywhere, those who can pick a stone taint to the sea, above the money a thousand. That was a great price! Thus, in the proximity of the local folk behind hearing the soil and have to elect. Surprisingly, the reward is fair Huaxin maneuver, until a great number of people coming to pick soil while he suddenly stopped the gain. Result, folk have angrily left the soil in place down. Mandarin is the use of these world materials, organizing people, into anti-sea Datang. Tong, the southeast coastal areconsist in ... fish-scale economic evolution, increasing seawall, seawall building gradually expanded. Ming appeared five vertical and 5 curtate scales great Shitang, which is of massive stone mystery aspect Diego Shitang. Kangxi 59 years (AD 1720) the leader of Zhejiang Zhu Shi culling of the maximum hazardous and a good foundation Haining old Yancang seashore, the highest structure great scales Tong, five Baizhang. As large Shitang rugged durability, it is widely secondhand in the altitude ruddy tide position. According to the Qianlong five years (AD 1787) statistics, then the scales have built a aggregate length of almost 80 large Tong, Seven Mile, and with the Thousand Character Classic reg code numbers, stone in the tarn up top to clear mileage and place, ease of upkeep and treatment. Tong, by with fish-scale architecture is spectacular outlooking the Qiantang tidal pierce of the cardinal attractions. Historical unit on the seawall seawall ahead the earliest written records found in the Han Dynasty, Geographer Li Tao Yuan Dynasties introduces So he spread everywhere, those who tin pick a stone soil to the sea, on the money a thousand. That was a great cost! Thus, in the vicinity of the local people later listening the soil and must pick. Surprisingly, the reward is just Huaxin plan, until a large number of people coming to pick soil when he suddenly stopped the acquisition. Result, people have angrily left the soil in area down. Mandarin is the use of these earth materials, organizing people, into anti-sea Datang. From the Five Dynasties, Song Dynasty to the Yuan Dynasty, Jiangsu, Shanghai, Zhejiang's seawall, with the initial evolution. Tempo 3 years (AD 910), Wu Yue, Wang Qian [liú flow] in Hangzhou, Jiangmen, waiting outdoor the tide through the door and, with the This reach, compiled bamboo cages, packed in bamboo cages the stones, the code on the beach, piled seawall, and then marked in the pond before the pond later the reinforcement of thick stakes, still covered with boulders upon. This Xintang, did not resist the tide pond soil erosion, more lusty, better performance against the tides. However, the stone is effortless to cache lumber decay pond have to be regularly preserved; the same period, the absence of overall extravaganza of the bulk rock, unable to withstand the tide. People groping to be improved, so the construction of a prim Shitang. Southern Song and Yuan Dynasty, the construction of the seawall, it also made many completions. Song Jiading fifteen years (AD 1222), Zhejiang Siddhi give Liu [hòu thick] has established in the regional pond and soil arrangement equipment Tong River. It is Shitang far inside, and then dug a outlet, phoned the appliance Tong; to dig out the soil, the river has built a clay inside soil readiness called Tong Tong. Tong Tong River and arrange the role of soil preparation, can usually separated by farmland and salinity, prevent soil salinization; Once appearance Tong, washed out by wag, tide sodium consumption can be ready by Tong, and make row back into the ocean, The soil moisture equipment Tong became the second line of barricade, intercepting a spent compel of the tides. Both sides in the Hangzhou Bay, the Yuan Dynasty have carried out large-scale Shitang construction. There are many innovations in technology. First, the pedestal of the pond were dealing with a foot in diameter, eight feet long stakes into the soil, so namely pond is more solid base, can no accessible be tidal Taokong. Second, use of stone masonry in the pond itself, the use of criss-cross means, layers and assembled so namely the overall structure of Shitang better. Third, in Shitang back the sea, with every floor of architecture rubble and soil, enhanced Shitang the moisture resistance properties. This Shitang structure has been relatively complete, the ancestor of the after Ming and Qing Tong,. Ming Dynasty was the north coast of Hangzhou Bay seawall maximum economically developed nation the forefront of the Taihu Lake Basin. For the tidal bore on a solemn menace to the district, that the administration frequently mobilize manpower, material and construction of local seawall. Several of which are more important. First, the Hongwu years (AD 1370) of the project, the 2370 Tong, ten feet into the building. Second, the Yongle duration of two repair. One in 9 Yongle (AD 1411), building a total of 11185 soil Shitang husband; 1 in 11 to thirteen years Yongle,iamseoer.com, the mobilization of more than 100,000 soldiers and civilians, for the fatigue, million. Third, fully integrated thirteen years (AD 1477) and Wanli five years (AD 1577) the two projects, both projects were entire built over 2370 Shitang husband. Seawall construction of western Zhejiang in the process of frequent, people often sum up experience, improve pond work structure to improve the moisture resistance properties. One of the most important object is Ye Qian, Zhejiang yellow ascended water to establish the five vertical and five horizontal scales Shitang. Lessons from quondam experience he concluded that in the quondam of the old pond, there are two solemn failings, premier, The sometime refers to the pond bottom is no strong, the latter refers to the pond itself is not tight. Therefore, while he chaired over the construction of ponds, in these two areas have made premonitory promotions. In basic terms, the surface of lax sand have to be cleared, unless a real soil, and then again in the 1st half of the real earth, piling compaction. That this pond base, not only to withstand force, and are not lightly tide Taokong. In the pond itself, the use of the same size (width, length and thickness were six feet, two feet, two feet) of the criss-cross of stone building, 18-story, thirty feet six feet; bottom width Si Zhang, five vertical and five horizontal The on layers of shrinkage, was scaly,mailscreen, top width ten feet. Shitang after redouble earth ponds. That this criss-cross, top bottom width lessen, fashioned like scales of Shitang, the best overall performance. Huangtang actually relatively muscular. But it is tall price, necessitated every ten feet two silver 300. Therefore, when he transformed to entire workmen 1/10-2/10 pond when they sprint out of asset heaved. The additional had to still use the old pond. As the tide of the Qiantang River cardinal slide northward, reducing the menace of tidal bore on the south coast. Thus, in the Ming Dynasty, Qiantang River seawall construction, the general said a smaller scale. In increase to the west of Zhejiang seawall, the tidal bore in array to prevent jeopardizing the south bank of the Yangtze River estuary of the grain-producing areas, the Ming Dynasty of Jiading, Songjiang, etc. seawall construction, and more consideration. Major projects are: Hongwu period (AD 1368-1399), the construction of the Jiading to Taicang Liu Hong Kong between 1870 long pond soil ten feet, thirty feet broad at the bottom, top width of ten feet. Chenghua 2008 (AD 1472), prefect of the white line in Songjiang, the construction of Hua Ting, Shanghai, Jiading pond soil between the 3 counties, more than 52,500 total length of feet broad at the bottom Si Zhang, Dingkuan nijo, 1.7 husband. One Pinghu, Baoshan and other places intimidated by the tide the larger lots, in the soil behind the pond, construct a clay pond was joined, saying that in the nursing ponds. Later, outside in the pond soil, and silt out of large tracts of earth, therefore, Wanli years (AD 1584), Shanghai magistrate Yanhong Fan, but also in the fashionable ground built in 9200 and then ten feet of new soil pond, there has been treble seawall. Qing Tong, with the rugged durability of fish-scale economic development in the southeast coastal areas, gradually increase the seawall, seawall structure gradually expanded. Ming appeared five vertical and five horizontal scales large Shitang, which is of ponderous stone mystery appearance Diego Shitang. Most of the time the Qing Dynasty, the chief slip Qiantang River tidal bore, Haining is still facing, sea salt, and other western Zhejiang Pinghu coast, so this is still the seawall project with the converge. Kangxi, Yongzheng, Qianlong three generations, Zhu Shi has served as the governor of Zhejiang, the board of civil chancery, and other important duties. During his tenure, presided over the construction of the Soviet Union numerous times, Shanghai, Zhejiang and other places of the seawall. Kangxi 59 years (AD 1720), he integrated the various aspects of governance over the final pond perfected technology, the old Yancang in Haining, the construction of 500 new scales Shitang husband. Yongzheng years (AD 1724) in July, for of the typhoon and the tide of the Qiantang River mouth in the north and south along both seem, causing a large influx of catastrophe. At that period, in counting to Zhu Shi Yancang built in the old Tong, the new scales, the Hangzhou Bay south most of the seawall have been severely damaged, life, property loss is very massive. At first, Zhu Shi Tong, the new scales, deserving to tall cost, absence silver 300 per ten feet two, no improvement, only made the 500 husbands. The tide of this test, the seawall project is recognized as a For the safety of western Zhejiang, the Qing government was accordingly willing to spend lots of money, judged to north shore of the Qiantang River, the biggest threat by the bore area, be converted into new scales Shitang. New scales Shitang, has the emulating characteristics: First, the foundation is more solid. Ming Tong, yellow-liter scales large, dredging the pond only after the first half of the base below the heap, the latter part untreated. The new scales Tong, Tong-based projects, in addition to dredging and the first half of stack, but also in the second half under the pile, so that two parts have the same pressure performance, and its also accustom on concrete compaction. Second, the structure of pond itself more closely. Specification of the same stone, provides five feet long, two feet broad, thick foot, along with a small pearly masonry, with tung oil, lime mortar mixed with glutinous rice juice, between the upper half of the stone, steel curium, steel ingots connection . Bottom of the pond 12 feet wide, generally convene 18-story, 18 feet, each inward contraction, top width of four feet and a half. Tong, likened with yellow ascended, however much smaller, but the overall performance is better than it. Third, more attention to maintaining pond project, on the one hand, back in Shitang sea exercising puzzle gravel and soil, to enhance the body's Royal pond performance and prevent the tidal wag of infiltration. On the other hand, in the construction of tanks Shitang of water to the sea, with stones from the pond foot outwards puzzle. Width from 12 feet of water tanks to 48-foot scope, in order to defend the foot pond, reducing tidal wave energy. In addition, Chongming Island, construction of seawall construction also started the Qing Dynasty. Chongming Island is today the third largest island in China, one area of 1,000 square kilometers. Tang empire, it is a small sandbar, an area of only a dozen kilometers, deserving to the tidal river and sediment deposition, the Ming and Qing, and gradually developed into the Big Island. From the late Ming, the reclaimed chip of earth in order, people started to create uncomplicated seawall on the island. Qianlong, the building of a definite size of earth embankment, a long 100 years. Dynasty, the two rivers on the Governor Liu Kun-yi and in its construction Shidi. Qing Dynasty in the hindrance of disasters bore, but also made some new exploration. First, attempt to make the main tide of the Qiantang River away small door. As the bore of the main north gate and south gate away, are accessible led to serious wave of disaster, particularly the northern gate to work, disaster is more serious, and only take the small door, wave disaster was small. Therefore, Emperor Qianlong had organized forces, dredging waterways small doors, which guide slip through the main bore, and have attained decisive results. This makes sense to explore. Second, when the Qing Dynasty built the seawall, attempt to use the new engineering building materials cement. Although this test was failed due to ground subsidence, but it attempts courses as the people. Republic of China to cement the material as pond go, gradually increased, and achieved some success. For thousands of years, Jiangsu, Shanghai, Zhejiang seawall project development, reflecting the local people skirmish with the strong influx of disaster resilience and ingenuity. Seawall construction, the personal safety of a great many the people, the local industrial and agricultural production, are a mighty assure. Military role of the earliest to the seawall for naval intentions in the Jin Dynasty. Jin is a clear written log of China has started construction of seawall, which first appeared in the Eastern Jin Dynasty salty sea wall and period (AD 326--334 years), called It is the history of China by Wu Yu Tan's construction in the Yangtze River delta front. At this point is still built for defensive purposes tide. The construction of the seawall for military purposes started is half a century after 400 AD. At that time, the explosion of the Sun En, Lu Xun led laborer uprising, the rebels occupy the Zhoushan Islands, the frequent bombards on the southeast coast. Against the face of the riot legion, the Eastern Jin Dynasty potentates thought of the seawall, rapidly built, as a defensive fort. Another says: The story, Later the Although Yuanshan Song Hu trench was presently to kill the rebels, but the seawall to create a defense alternatively military skirmish of the rebel militia had no small impact. Also be watched from the history, presently after the birth of the seawall, people find it a defense worth, and to the applied practice. Seawall at the old of cold iron against the attackers to use bows and arrows, their defense very manifest. So many governors in antique seawall construction accompany great magnitude to its defense when the melodrama feature, the seawall mend was high and tight. Such as the Southern Song Xiao Zhong trunk (AD 1165--1173 years) built by the seawall, north of Jiading old picks, south west of Haining clean pump, higher than the walls, both inside and outside tanggou intersect, with good military defense role. To this end, the world saying: Its effectiveness can be seen on the defense. The late Yuan Dynasty, pirates of the risk of suddenly began, some insight on the intended construction of the seawall to the south into the northern defenses. As was a prominent scholar Yu Ji said: , to safeguard water as a field, called rich harvesting, impose its taxes for three years and can guard the chief, can prevent the island barbarians, can save boating carry on. they said, vigorously, but for various causes, The story This suggestion has as yet successfully implemented, but reflects the twin role of the ancients comprehend the seawall and wish to apply it to the northern region to strengthen the defense of the capital powerhouse. Ming Dynasty, the governors of attention, just 270 years, then 13 repair the seawall, the seawall initially laid the scale of today. At this point in technology have greatly improved, the elementary structure with a stone built and rational. Jiajing, the Japanese suffer from rampant, so long, sturdy seawall ambition be thousands of miles along the coast masses of soldiers fight against the Japanese invasion of the important fortifications. In this regard, Ming and later recorded a number of specialized coastal or seawall works have pointed out. Such as , that relies on outside caregivers that a pond it. After a historical file also shows that as early as the beginning of the next common soup and put the seawall into their defense system, as an important makeup of coastal defense, and adored by Ming. Further reading: 1Miles seawall defensive role: http://www.bocaiit.com/Article/fengsu/200811/664.html
Open Category: construction, flood control, irrigation technology, the rill I cultivate the
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