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A platform for research: civil engineering, architecture and urbanism
Semi-rigid anti-seepage curtain suitable for riprap foundation and construction method of semi-rigid anti-seepage curtain
The invention discloses a semi-rigid anti-seepage curtain suitable for a riprap foundation and a construction method of the semi-rigid anti-seepage curtain. The semi-rigid anti-seepage curtain comprises a number A pile, a number B pile and a top beam, the number A pile and the number B pile are in lap joint at intervals to form a main body of the semi-rigid anti-seepage curtain, and the top beam is located at the top of the main body. According to the construction method, a riprap layer is crushed through pneumatic impact equipment, a retaining wall is synchronously followed by using a steel sleeve, an anti-seepage material which is formed by uniformly mixing in proportion is poured into the steel sleeve, and the anti-seepage material comprises water, cohesive soil, bentonite, cement and gravel materials. And after the anti-seepage material reaches certain strength, the steel sleeve is pulled out and moved to the next pile position, and finally a continuously-meshed semi-rigid anti-seepage curtain is formed. According to the scheme, the steel sleeve is used for protecting the wall, the slurry leakage problem of slurry in large riprap gaps is solved, and the pile forming quality is guaranteed; the pneumatic impact equipment is adopted to form holes, so that the hole forming efficiency in the riprap foundation is greatly improved; a semi-rigid anti-seepage curtain is formed, and the problems of curtain cracking and leakage caused by foundation deformation are solved.
本发明公开了一种适用于抛石地基的半刚性防渗帷幕及其施工方法。半刚性防渗帷幕包括A号桩B号桩以及冠梁三部分，A号桩和B号桩互相间隔搭接实施组成半刚性防渗帷幕的主体，冠梁位于主体的顶部。该施工方法通过风动冲击设备破碎抛石层，利用钢套筒同步跟进护壁，钢套筒内灌注按比例混合均匀而成的防渗材料，防渗材料包含水、粘性土、膨润土、水泥及砂石料。防渗材料达到一定强度后拔出钢套筒移至下一个桩位，最终形成连续咬合的半刚性防渗帷幕。本方案用钢套筒护壁，解决了浆液在抛石大空隙中的漏浆问题，保障了成桩质量；采用风动冲击设备成孔，大大提高了抛石地基中的成孔效率；形成半刚性防渗帷幕，缓解了地基变形引起的帷幕开裂渗漏问题。
Semi-rigid anti-seepage curtain suitable for riprap foundation and construction method of semi-rigid anti-seepage curtain
The invention discloses a semi-rigid anti-seepage curtain suitable for a riprap foundation and a construction method of the semi-rigid anti-seepage curtain. The semi-rigid anti-seepage curtain comprises a number A pile, a number B pile and a top beam, the number A pile and the number B pile are in lap joint at intervals to form a main body of the semi-rigid anti-seepage curtain, and the top beam is located at the top of the main body. According to the construction method, a riprap layer is crushed through pneumatic impact equipment, a retaining wall is synchronously followed by using a steel sleeve, an anti-seepage material which is formed by uniformly mixing in proportion is poured into the steel sleeve, and the anti-seepage material comprises water, cohesive soil, bentonite, cement and gravel materials. And after the anti-seepage material reaches certain strength, the steel sleeve is pulled out and moved to the next pile position, and finally a continuously-meshed semi-rigid anti-seepage curtain is formed. According to the scheme, the steel sleeve is used for protecting the wall, the slurry leakage problem of slurry in large riprap gaps is solved, and the pile forming quality is guaranteed; the pneumatic impact equipment is adopted to form holes, so that the hole forming efficiency in the riprap foundation is greatly improved; a semi-rigid anti-seepage curtain is formed, and the problems of curtain cracking and leakage caused by foundation deformation are solved.
本发明公开了一种适用于抛石地基的半刚性防渗帷幕及其施工方法。半刚性防渗帷幕包括A号桩B号桩以及冠梁三部分，A号桩和B号桩互相间隔搭接实施组成半刚性防渗帷幕的主体，冠梁位于主体的顶部。该施工方法通过风动冲击设备破碎抛石层，利用钢套筒同步跟进护壁，钢套筒内灌注按比例混合均匀而成的防渗材料，防渗材料包含水、粘性土、膨润土、水泥及砂石料。防渗材料达到一定强度后拔出钢套筒移至下一个桩位，最终形成连续咬合的半刚性防渗帷幕。本方案用钢套筒护壁，解决了浆液在抛石大空隙中的漏浆问题，保障了成桩质量；采用风动冲击设备成孔，大大提高了抛石地基中的成孔效率；形成半刚性防渗帷幕，缓解了地基变形引起的帷幕开裂渗漏问题。
Semi-rigid anti-seepage curtain suitable for riprap foundation and construction method of semi-rigid anti-seepage curtain
一种适用于抛石地基的半刚性防渗帷幕及其施工方法
LIU YANG (author) / CHENG ZEKUN (author) / GAO XIAOBING (author) / HAN SHIJIE (author) / JIANG XIONG (author)
2024-08-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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