Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of bridge cast-in-place bored pile
The invention relates to a construction method of a bridge cast-in-place bored pile. The construction method comprises the following steps that S1, a drilling machine drills to the bottom of pile bottom sediment through a first sound measuring pipe and a second sound measuring pipe respectively, two high-pressure water pipes are lowered to the pile bottom sediment along the first sound measuring pipe and the second sound measuring pipe respectively, high-pressure water is injected into the two high-pressure water pipes by a high-pressure rotary jet pile machine, and the consolidation substanceat the pile bottom sediment is punched; S2, the high-pressure water is injected through the high-pressure water pipe in the first sound measuring pipe, the water is discharged through the second sound measuring pipe, and particle sediment is taken out; and S3, after hole cleaning is finished, a grouting pipe is lowered to the pile bottom sediment through the first sound measuring pipe, the waterand mud in the segregation layer and the sediment part is replaced by cement slurry with large specific gravity through the second sound measuring pipe, and after grouting is completed, hole sealing treatment is carried out. The construction method has the effect of facilitating the cleaning of sediment at the pile bottom of the cast-in-place bored pile.
本发明涉及一种桥梁钻孔灌注桩施工方法，其包括以下步骤：步骤一、钻机分别通过第一声测管和第二声测管钻至桩底沉渣处底部，将两根高压水管分别沿着第一声测管和第二声测管下放至桩底沉渣处，并通过高压旋喷桩机向两根高压水管注入高压水，冲切桩底沉渣处的固结物；步骤二、通过第一声测管中的高压水管注入高压水，水通过第二声测管排出并且带出颗粒沉渣；步骤三、清孔完毕后，并通过第一声测管下放注浆管至桩底沉渣处，用比重大的水泥浆液将离析层及沉渣部位中的水及泥浆通过第二声测管置换出来，注浆完成后，进行封孔处理。本发明具有便于对钻孔灌注桩桩底清理沉渣的效果。
Construction method of bridge cast-in-place bored pile
The invention relates to a construction method of a bridge cast-in-place bored pile. The construction method comprises the following steps that S1, a drilling machine drills to the bottom of pile bottom sediment through a first sound measuring pipe and a second sound measuring pipe respectively, two high-pressure water pipes are lowered to the pile bottom sediment along the first sound measuring pipe and the second sound measuring pipe respectively, high-pressure water is injected into the two high-pressure water pipes by a high-pressure rotary jet pile machine, and the consolidation substanceat the pile bottom sediment is punched; S2, the high-pressure water is injected through the high-pressure water pipe in the first sound measuring pipe, the water is discharged through the second sound measuring pipe, and particle sediment is taken out; and S3, after hole cleaning is finished, a grouting pipe is lowered to the pile bottom sediment through the first sound measuring pipe, the waterand mud in the segregation layer and the sediment part is replaced by cement slurry with large specific gravity through the second sound measuring pipe, and after grouting is completed, hole sealing treatment is carried out. The construction method has the effect of facilitating the cleaning of sediment at the pile bottom of the cast-in-place bored pile.
本发明涉及一种桥梁钻孔灌注桩施工方法，其包括以下步骤：步骤一、钻机分别通过第一声测管和第二声测管钻至桩底沉渣处底部，将两根高压水管分别沿着第一声测管和第二声测管下放至桩底沉渣处，并通过高压旋喷桩机向两根高压水管注入高压水，冲切桩底沉渣处的固结物；步骤二、通过第一声测管中的高压水管注入高压水，水通过第二声测管排出并且带出颗粒沉渣；步骤三、清孔完毕后，并通过第一声测管下放注浆管至桩底沉渣处，用比重大的水泥浆液将离析层及沉渣部位中的水及泥浆通过第二声测管置换出来，注浆完成后，进行封孔处理。本发明具有便于对钻孔灌注桩桩底清理沉渣的效果。
Construction method of bridge cast-in-place bored pile
桥梁钻孔灌注桩施工方法
CHEN HONG (Autor:in) / WANG HAIYAN (Autor:in) / TIAN HAIBO (Autor:in) / GUO GUANCHAO (Autor:in) / XIE TIAN (Autor:in) / LI RUI (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
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