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采沙船河道采沙的起因和發(fā)展
     二十世紀(jì)八十年代中后期，隨著我國(guó)經(jīng)濟(jì)的起飛，大規(guī)?；A(chǔ)設(shè)施建設(shè)在啟動(dòng)，以及隨后城市化的發(fā)展，對(duì)砂石資源的需求激增，而將河道砂石用于建設(shè)用砂具有質(zhì)優(yōu)，價(jià)廉的特點(diǎn)。因此，一些人直接將目光直接投向了河道。在當(dāng)初情況下，河道采砂的監(jiān)管缺位；而從事河道采沙技術(shù)要求低，也不需大量資金投入。達(dá)成了沿江沿河一些人的發(fā)財(cái)致富門路之一。如在長(zhǎng)江，在二十世紀(jì)九十年代初，在將砂開采的暴力驅(qū)使下，各種采沙船蜂擁而至，濫采亂挖隨處可見，導(dǎo)致一些河段的河床、灘岸和涉水工程設(shè)施以及生態(tài)環(huán)境受到破壞和損毀，海損事故頻發(fā)，長(zhǎng)江防洪和通航安全受到極大威脅，同時(shí)引發(fā)采沙糾紛甚至暴力沖突，影響社會(huì)治安穩(wěn)定，還造成國(guó)有資產(chǎn)的大量流失等一系列問題。
   河道采砂的發(fā)展，不僅是參與人/船數(shù)量的增加，更重要的是采沙設(shè)備功率的提升，采沙用船噸位的增加。
   大規(guī)模采砂初期，河道采砂使用的是基本是抓斗式，鏈斗式、抽吸式等采沙機(jī)械，在市場(chǎng)對(duì)砂石的需求和利潤(rùn)的驅(qū)使下，這些設(shè)備越來越不能滿足需求，并催生各類采沙機(jī)具不斷升級(jí)換代，其功率也不斷提升。采沙船只在增加，特別是采沙設(shè)備的能力在提升，采沙能力在發(fā)展。

The cause of river channel sand mining large junk and the development
     In mid and late 1980 s, with China's economic take-off, large-scale infrastructure construction at startup, and then the development of urbanization, the surge in demand of sand resources, and will be used sand river sand used in construction is high quality, cheap characteristics. As a result, some people will look directly into the river directly. In the original case, river channel sand mining in the absence of regulation; And engaged in river channel sand mining technical requirements is low, also do not need a lot of money. Reached one of the enrichment of some people along the river along the way. Such as in the Yangtze river, in the early 1990 s, the sand mining of violence, all kinds of mining in large junk, excessive mining dig everywhere disorderly, leading to some of the river bed, frontage and wading engineering facilities as well as ecological environment is damaged and damaged, frequent accidents at sea, the Yangtze river flood control and navigation safety under great threat, sand disputes and even violence at the same time, influence social security, also cause huge loss of state-owned assets, such as a series of problems.
    The development of the channel sand is not only an increase in the number of participants/ship, more important is sand equipment power to ascend, sand with the increase of the tonnage.
    Early sand mining, the river channel sand mining are using basic clamshell, chain bucket, suction type, such as sand mining machinery, the market demand for sand and profit driven by these devices is more and more can't meet the demand, and create all kinds of mining machinery constantly upgrading, its power is also rising. Sand ships on the rise, especially sand equipment's ability in raising, sand ability in development.