Structural matter drops to hit water with fixed rate phut from certain height, inchoate and main the structure that attacks water process in the light of phut is answered begin research, and press mutation of field of force and Xing Bo to wait to study however to entering the underwater after water less, and add with each passing day as large bridge and marine project much, the construction in these projects and the phenomenon that phut of large construction content also appeared to hit water in use process, like Guangdong 9 rivers big bridge is bumped to break down after collapsing, large area bridge floor falls into surface to wait, the meeting such as mutation of field of pressure of the underwater after this kind of phut hits water and Xing Bo is right all round structural products gives birth to certain influence, evaluate this kind of influence to have real project sense to construction and design.

結(jié)構(gòu)物從一定高度落下以一定速度砰擊水面，早期主要針對(duì)砰擊入水過(guò)程的結(jié)構(gòu)響應(yīng)開(kāi)展探究在线更新中文字幕视频，而對(duì)入水后水下壓力場(chǎng)突變和興波等卻探究較少黄色视频久久久久，而隨著大型橋梁和海洋工程日漸增多欧美老人激情综合网欧美综合激情，在這些工程的施工和使用過(guò)程中也出現(xiàn)了大型結(jié)構(gòu)物砰擊入水的現(xiàn)象亚洲色婷婷开心综合，如廣東九江大橋被撞垮塌后大面積橋面落入水面等，這種砰擊入水后水下壓力場(chǎng)突變和興波等會(huì)對(duì)四周結(jié)構(gòu)物產(chǎn)生一定影響91国内精天天，評(píng)價(jià)這種影響對(duì)施工和設(shè)計(jì)具有現(xiàn)實(shí)的工程意義免费看黄网站9。

From the water pressure test and the collapsing examples, the thesis analysis the force expression of Karst collapse in water table dropping down, and presents that the additional stress from water table descending in overlying soil layer and rock, which is equal to approximately the descending depth of water table, which can be applied to about ten meters descending depth.

針對(duì)地下水位波動(dòng)引發(fā)的巖溶塌陷進(jìn)行了專(zhuān)門(mén)性研究。通過(guò)試驗(yàn)文章指出了巖溶區(qū)地下水位受迫下降至基巖面以下時(shí)的力學(xué)效應(yīng)為：附加力在一定范圍內(nèi)igao网为爱搞点激情，與在基巖面以上一樣超碰人人做人人操人人爽，等于水位下降的幅度值，并與蓋層下基巖中洞穴的形態(tài)及體積無(wú)關(guān)国产精品免费视频色欲。