A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-seepage cofferdam and construction method thereof
The invention provides an anti-seepage cofferdam and a construction method thereof. The anti-seepage cofferdam comprises high-pressure jet grouting pile foundations located on the upstream side and the downstream side and a steel pipe pile foundation located in the middle. A broken stone cushion layer and dike core stone are further sequentially arranged above the high-pressure jet grouting pile foundation, natural soil is arranged between steel pipe piles of the steel pipe pile foundation, the broken stone cushion layer and backfilled medium-coarse sand are further sequentially arranged above the natural soil, and two stone cushion layers and a grouted rubble protective face are further sequentially arranged above the dike core stone on the upstream side. A bottom protection block stone is further arranged at the foremost end of the upstream side; a two-piece stone cushion layer, a mixed inverted filter layer, a geotechnical cloth filter layer and bagged sand are further sequentially arranged above the dike core stone on the backwater side, and a concrete wave wall is further arranged above the two-piece stone cushion layer close to the steel pipe pile foundation and above the dike core stone on the backwater side. The stability of the offshore anti-seepage cofferdam can be enhanced, sea water is prevented from flowing backwards and permeating, and construction is convenient.
本发明提供一种防渗围堰及其施工方法，包括位于迎水侧和背水侧的高压旋喷桩基础和位于中间的钢管桩基础；在高压旋喷桩基础上方还依次设置有碎石垫层和堤心石，在钢管桩基础的钢管桩之间为天然土，在天然土上方还依次设置有碎石垫层和回填中粗砂，在迎水侧的堤心石上方还依次设置有二片石垫层和浆砌块石护面，且在迎水侧最前端的位置还设置有护底块石；在背水侧的堤心石上方还依次设置有二片石垫层、混合倒滤层、土工布滤层和袋装砂，且在背水侧的堤心石上方且靠近钢管桩基础位置的二片石垫层上方还设置有混凝土挡浪墙。本发明可以增强海上防渗围堰的稳定性，防止海水倒灌和渗透，并且便于施工。
Anti-seepage cofferdam and construction method thereof
The invention provides an anti-seepage cofferdam and a construction method thereof. The anti-seepage cofferdam comprises high-pressure jet grouting pile foundations located on the upstream side and the downstream side and a steel pipe pile foundation located in the middle. A broken stone cushion layer and dike core stone are further sequentially arranged above the high-pressure jet grouting pile foundation, natural soil is arranged between steel pipe piles of the steel pipe pile foundation, the broken stone cushion layer and backfilled medium-coarse sand are further sequentially arranged above the natural soil, and two stone cushion layers and a grouted rubble protective face are further sequentially arranged above the dike core stone on the upstream side. A bottom protection block stone is further arranged at the foremost end of the upstream side; a two-piece stone cushion layer, a mixed inverted filter layer, a geotechnical cloth filter layer and bagged sand are further sequentially arranged above the dike core stone on the backwater side, and a concrete wave wall is further arranged above the two-piece stone cushion layer close to the steel pipe pile foundation and above the dike core stone on the backwater side. The stability of the offshore anti-seepage cofferdam can be enhanced, sea water is prevented from flowing backwards and permeating, and construction is convenient.
本发明提供一种防渗围堰及其施工方法，包括位于迎水侧和背水侧的高压旋喷桩基础和位于中间的钢管桩基础；在高压旋喷桩基础上方还依次设置有碎石垫层和堤心石，在钢管桩基础的钢管桩之间为天然土，在天然土上方还依次设置有碎石垫层和回填中粗砂，在迎水侧的堤心石上方还依次设置有二片石垫层和浆砌块石护面，且在迎水侧最前端的位置还设置有护底块石；在背水侧的堤心石上方还依次设置有二片石垫层、混合倒滤层、土工布滤层和袋装砂，且在背水侧的堤心石上方且靠近钢管桩基础位置的二片石垫层上方还设置有混凝土挡浪墙。本发明可以增强海上防渗围堰的稳定性，防止海水倒灌和渗透，并且便于施工。
Anti-seepage cofferdam and construction method thereof
一种防渗围堰及其施工方法
ZHAO LIANHENG (author) / MENG CHAO (author) / ZHANG ZEWEI (author) / ZHAO WEILONG (author) / DAI ZHIYING (author) / YANG FENG (author)
2022-12-02
Patent
Electronic Resource
Chinese
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