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A platform for research: civil engineering, architecture and urbanism
Construction method for dam body anti-seepage curtain grouting
The invention discloses a construction method for dam body anti-seepage curtain grouting. The construction method comprises the steps that a, a foundation is built; b) hole chiseling; c) pressurizing and expanding the gap; d) cleaning treatment; step e), grouting; a steel structure frame is erected on the surface of a dam body foundation pit, meanwhile, anchor rods are installed on the surface of the steel structure frame, the ends, close to the foundation pit, of the anchor rods need to penetrate into the foundation pit, concrete is poured after the steel structure frame is erected, and a dam body foundation is formed; and b) hole chiseling: drilling holes on a dam body foundation structure needing grouting reinforcement by adopting a small-caliber geological slewing drilling machine and a diamond drill bit. The hollow metal pipeline is inserted into the hole after grouting is completed, a grouting layer between the foundation and the pile pit can be sealed and blocked, grout is prevented from overflowing, meanwhile, a gap is prevented from occurring between the grout and the concrete foundation, and the structural stability is guaranteed.
本发明公开了坝体防渗帷幕灌浆的施工方法，所述步骤a)地基搭建；步骤b)孔洞凿击；步骤c)加压扩隙；步骤d)清洁处理；步骤e)注浆；步骤f)灌浆夯实，步骤a)地基搭建：通过在坝体基坑表面搭设钢结构框架，同时在钢结构框架表面安装锚杆，锚杆靠近基坑的一端需要贯穿至基坑的内部，待钢结构框架搭设完毕后浇筑混凝土，使其形成坝体地基，步骤b)孔洞凿击：在需要灌浆加固的坝体地基结构上采用小口径地质回转钻机，金刚石钻头进行钻孔。本发明通过在灌浆完毕后在孔洞的内部插接空心金属管道，能够对地基与桩坑之间的灌浆层进行密封阻挡，避免浆液溢出，同时防止浆液与混凝土地基之间出现缝隙，保证结构稳定性。
Construction method for dam body anti-seepage curtain grouting
The invention discloses a construction method for dam body anti-seepage curtain grouting. The construction method comprises the steps that a, a foundation is built; b) hole chiseling; c) pressurizing and expanding the gap; d) cleaning treatment; step e), grouting; a steel structure frame is erected on the surface of a dam body foundation pit, meanwhile, anchor rods are installed on the surface of the steel structure frame, the ends, close to the foundation pit, of the anchor rods need to penetrate into the foundation pit, concrete is poured after the steel structure frame is erected, and a dam body foundation is formed; and b) hole chiseling: drilling holes on a dam body foundation structure needing grouting reinforcement by adopting a small-caliber geological slewing drilling machine and a diamond drill bit. The hollow metal pipeline is inserted into the hole after grouting is completed, a grouting layer between the foundation and the pile pit can be sealed and blocked, grout is prevented from overflowing, meanwhile, a gap is prevented from occurring between the grout and the concrete foundation, and the structural stability is guaranteed.
本发明公开了坝体防渗帷幕灌浆的施工方法，所述步骤a)地基搭建；步骤b)孔洞凿击；步骤c)加压扩隙；步骤d)清洁处理；步骤e)注浆；步骤f)灌浆夯实，步骤a)地基搭建：通过在坝体基坑表面搭设钢结构框架，同时在钢结构框架表面安装锚杆，锚杆靠近基坑的一端需要贯穿至基坑的内部，待钢结构框架搭设完毕后浇筑混凝土，使其形成坝体地基，步骤b)孔洞凿击：在需要灌浆加固的坝体地基结构上采用小口径地质回转钻机，金刚石钻头进行钻孔。本发明通过在灌浆完毕后在孔洞的内部插接空心金属管道，能够对地基与桩坑之间的灌浆层进行密封阻挡，避免浆液溢出，同时防止浆液与混凝土地基之间出现缝隙，保证结构稳定性。
Construction method for dam body anti-seepage curtain grouting
坝体防渗帷幕灌浆的施工方法
DENG SHEHUA (author) / ZHAO HUIFEN (author) / ZHAO XINNIAN (author)
2024-09-03
Patent
Electronic Resource
Chinese
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