【摘要】 为了利用爆破解决黄河下游河道经常出现的横河和斜河威胁河道安全的险情以及河道整治中的裁弯取直、疏浚航道和河道引水口淤积的问题,在黄河湿滩上进行了微差爆破开槽试验研究。通过试验,回答了在黄河下游湿滩上能否进行爆破开槽施工;爆破能否形成沟槽,形成的沟槽可以保持多长时间;能否作为引槽引水,通过冲刷形成新河槽;爆破开槽对已有工程的安全影响等四方面的问题。更多还原

【Abstract】 An experimental research on notching wet beach of the Yellow River with the short-delay blasting is made for eliminating the risk that the main river channel is often threatened by some horizontal and slanting streams occurred on the downstream of the river and solving the problems from the bend cut-off for river channel harnessing,water way dredging and the siltation of the water diversion outlets along the channel.Through the experiment,four engineering questions are answered: 1.whether the notching construction can be done on the wet beach of the downstream of the Yellow River with the blasting method;2.whether the ditches can be created by the blasting and how long can be maintained;3.whether the ditches can be used to divert water and form a new river channel by water flushing;4.the impacts on the safety of the existing projects therein from the blasting concerned.更多还原