Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Digging, spraying, pressing and grouting pile and construction method and special drilling machine thereof
The invention discloses a digging, spraying, pressing and grouting pile and a construction method and a special drilling machine thereof. The special drilling machine can scrape a soil layer around a pile body at the positions of a diameter expanding body and a wing plate on the surface of a pile hole into a cavity of the diameter expanding body with the depth of 10-20 cm and a groove of the wing plate with the depth of 10-20 cm and the width of 5-10 cm by using a scraper; cement paste which is sprayed in a rotating and fixed mode rises to the soil layer at the position of the diameter expanding body and the wing plate or rises to be filled in the cavity of the diameter expanding body or the soil layer in the groove of the wing plate which is scraped, loosened, dug and expanded by the soil scraper, and water in the cement paste permeates into the soil layer which is not loosened to soften a soil body; then high-pressure cement paste impacts and cuts in the softened soil layer in a jet mode to slump a hole wall of the cavity of the diameter expanding body or the groove of the wing plate groove scraped by the scraper, the area of the cavity of the diameter expanding body or the groove of the wing plate is thickened and deepened, concrete can be pressed into the cavity of the diameter expanding body or the groove of the wing plate to be connected with the pile body, the pile body is connected with the wing plate and the double-frustum diameter expanding body through the concrete, and the concrete is bonded with surrounding cemented soil and a compacted soil layer, so that the settlement deformation of a single pile is small, and the bearing capacity of the single pile is doubled or above.
本发明公开了一种挖喷压灌桩及其施工方法和专用钻机，其中，专用钻机可把桩孔表面扩径体和翼板位置的桩身周围土层用刮刀刮成深10～20cm扩径体腔体和深10～20cm，宽5～10cm的翼板沟槽，旋、定喷的水泥浆上升到扩径体和翼板位置土层或上升填充在刮土刀刮松挖扩的扩径体腔体或翼板沟槽内土层中，水泥浆中的水份渗透到没有松动的土层中，软化土体，再经过高压水泥浆在软化土层射流冲击、切割、冲坍被刮刀刮成的扩径体腔体或翼板沟槽孔壁，加厚、加深扩径体腔体或翼板沟槽面积，扩径体腔体或翼板沟槽内能压进混凝土与桩身连接，桩身和翼板、双锥台扩径体混凝土连接，混凝土与周围水泥土、挤密土层粘结，单桩沉降变形小，提高单桩承载力1倍以上。
Digging, spraying, pressing and grouting pile and construction method and special drilling machine thereof
The invention discloses a digging, spraying, pressing and grouting pile and a construction method and a special drilling machine thereof. The special drilling machine can scrape a soil layer around a pile body at the positions of a diameter expanding body and a wing plate on the surface of a pile hole into a cavity of the diameter expanding body with the depth of 10-20 cm and a groove of the wing plate with the depth of 10-20 cm and the width of 5-10 cm by using a scraper; cement paste which is sprayed in a rotating and fixed mode rises to the soil layer at the position of the diameter expanding body and the wing plate or rises to be filled in the cavity of the diameter expanding body or the soil layer in the groove of the wing plate which is scraped, loosened, dug and expanded by the soil scraper, and water in the cement paste permeates into the soil layer which is not loosened to soften a soil body; then high-pressure cement paste impacts and cuts in the softened soil layer in a jet mode to slump a hole wall of the cavity of the diameter expanding body or the groove of the wing plate groove scraped by the scraper, the area of the cavity of the diameter expanding body or the groove of the wing plate is thickened and deepened, concrete can be pressed into the cavity of the diameter expanding body or the groove of the wing plate to be connected with the pile body, the pile body is connected with the wing plate and the double-frustum diameter expanding body through the concrete, and the concrete is bonded with surrounding cemented soil and a compacted soil layer, so that the settlement deformation of a single pile is small, and the bearing capacity of the single pile is doubled or above.
本发明公开了一种挖喷压灌桩及其施工方法和专用钻机，其中，专用钻机可把桩孔表面扩径体和翼板位置的桩身周围土层用刮刀刮成深10～20cm扩径体腔体和深10～20cm，宽5～10cm的翼板沟槽，旋、定喷的水泥浆上升到扩径体和翼板位置土层或上升填充在刮土刀刮松挖扩的扩径体腔体或翼板沟槽内土层中，水泥浆中的水份渗透到没有松动的土层中，软化土体，再经过高压水泥浆在软化土层射流冲击、切割、冲坍被刮刀刮成的扩径体腔体或翼板沟槽孔壁，加厚、加深扩径体腔体或翼板沟槽面积，扩径体腔体或翼板沟槽内能压进混凝土与桩身连接，桩身和翼板、双锥台扩径体混凝土连接，混凝土与周围水泥土、挤密土层粘结，单桩沉降变形小，提高单桩承载力1倍以上。
Digging, spraying, pressing and grouting pile and construction method and special drilling machine thereof
挖喷压灌桩及其施工方法和专用钻机
HUANG YUANCHEN (Autor:in) / LI JINLIANG (Autor:in) / HUANG YUCHEN (Autor:in)
23.07.2021
Patent
Elektronische Ressource
Chinesisch
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