Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device and construction method
The invention provides a rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device and a construction method. The rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device is characterized in that an inner protection cylinder is sleeved with a floral tube in a wrapping mode, a steel protection cylinder is fixedly arranged on the portion, located on the lower portion, of the outer portion of the inner protection cylinder in a sleeving mode by a certain length, an annular cavity is formed between the inner protection cylinder and the floral tube, a grout storage layer is formed, an opening in the top end of the grout storage layer is blocked by a pressing sheet, the grout storage layer communicates with a grouting machine for grouting, a rotary type drawing disc is arranged in the bottom end of the inner protection cylinder in a spliced mode, a chain bucket device is arranged in the inner protection cylinder, and a plurality of evenly-distributed digging buckets used for digging sand are arranged on the chain bucket device. According to the rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device, high-pressure grouting is conducted on the side wall of a pile hole while suction type drilling is conducted, and the foundation structure condition is improved through the technology in which the pile periphery is solidified through pressure grouting of the side wall of the pile hole.
本发明提供了一种旋转钻进式抽砂成孔侧壁高压注浆装置及施工方法，内护筒的外部套装包裹有花管，所述内护筒的外部，并位于下部剩余一段长度固定套装有钢护筒，所述内护筒和花管之间形成环形空腔，并构成浆液存放层，所述浆液存放层的顶端开口采用压片进行封堵；所述浆液存放层与用于注浆的注浆机相连通；所述内护筒的底端内部拼接设置有旋转式的抽盘，所述内护筒的内部设置有链斗装置，所述链斗装置上设置有多个均布的用于挖砂的挖斗。本装置实现了一边抽吸式钻进一边给桩孔侧壁高压注浆，通过桩孔侧壁压力注浆固化桩周技术来改善地基结构条件。
Rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device and construction method
The invention provides a rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device and a construction method. The rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device is characterized in that an inner protection cylinder is sleeved with a floral tube in a wrapping mode, a steel protection cylinder is fixedly arranged on the portion, located on the lower portion, of the outer portion of the inner protection cylinder in a sleeving mode by a certain length, an annular cavity is formed between the inner protection cylinder and the floral tube, a grout storage layer is formed, an opening in the top end of the grout storage layer is blocked by a pressing sheet, the grout storage layer communicates with a grouting machine for grouting, a rotary type drawing disc is arranged in the bottom end of the inner protection cylinder in a spliced mode, a chain bucket device is arranged in the inner protection cylinder, and a plurality of evenly-distributed digging buckets used for digging sand are arranged on the chain bucket device. According to the rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device, high-pressure grouting is conducted on the side wall of a pile hole while suction type drilling is conducted, and the foundation structure condition is improved through the technology in which the pile periphery is solidified through pressure grouting of the side wall of the pile hole.
本发明提供了一种旋转钻进式抽砂成孔侧壁高压注浆装置及施工方法，内护筒的外部套装包裹有花管，所述内护筒的外部，并位于下部剩余一段长度固定套装有钢护筒，所述内护筒和花管之间形成环形空腔，并构成浆液存放层，所述浆液存放层的顶端开口采用压片进行封堵；所述浆液存放层与用于注浆的注浆机相连通；所述内护筒的底端内部拼接设置有旋转式的抽盘，所述内护筒的内部设置有链斗装置，所述链斗装置上设置有多个均布的用于挖砂的挖斗。本装置实现了一边抽吸式钻进一边给桩孔侧壁高压注浆，通过桩孔侧壁压力注浆固化桩周技术来改善地基结构条件。
Rotary drilling type sand-pumping hole-forming side wall high-pressure grouting device and construction method
一种旋转钻进式抽砂成孔侧壁高压注浆装置及施工方法
LIU JIE (Autor:in) / TAO XINBO (Autor:in) / WANG RUIHONG (Autor:in) / CHENG QIFEN (Autor:in) / LEI XINGYU (Autor:in) / WANG FANG (Autor:in) / CHEN ZIYUE (Autor:in) / ZHANG HAN (Autor:in) / BAO SHUN (Autor:in) / LUO HAO (Autor:in)
27.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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