Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wall protection hole forming construction method for bored pile to penetrate through underground cavity
The invention discloses a retaining wall hole-forming construction method for a drilled pile to penetrate through an underground cavity, which comprises the following steps of: a) after a first drilled hole which is vertically drilled penetrates through the top wall of the underground cavity, adding earthwork into the first drilled hole and compacting to form an earthwork pile; b) drilling a second drill hole in the earthwork pile; c) pouring concrete into the second drill hole, and drilling a third drill hole in the concrete after the concrete reaches preset strength, so that the concrete between the hole wall of the third drill hole and the hole wall of the second drill hole forms a retaining wall; d, the third drill hole penetrates through the earthwork pile and then extends downwards to a bearing stratum in bed rock below the underground cavity, and e, a pile foundation is arranged in a hole formed by the third drill hole and the first drill hole. The construction method is high in construction efficiency and safety and low in construction cost.
本发明公开了一种钻孔桩穿越地下空洞的护壁成孔施工方法，a）当沿竖向钻设的第一钻孔穿透地下空洞的顶壁后，向第一钻孔中加入土方并压实，形成土方堆；b）在土方堆中钻设第二钻孔；c）向第二钻孔中浇筑混凝土，并当混凝土达到预设强度后在混凝土中钻设第三钻孔，使第三钻孔的孔壁与第二钻孔的孔壁之间的混凝土形成护壁；d）所述第三钻孔穿透土方堆后向下延伸，直至地下空洞下方基岩中的持力层；e）在第三钻孔和第一钻孔所形成的孔洞中设置桩基。本发明施工效率高、安全性高、施工成本低。
Wall protection hole forming construction method for bored pile to penetrate through underground cavity
The invention discloses a retaining wall hole-forming construction method for a drilled pile to penetrate through an underground cavity, which comprises the following steps of: a) after a first drilled hole which is vertically drilled penetrates through the top wall of the underground cavity, adding earthwork into the first drilled hole and compacting to form an earthwork pile; b) drilling a second drill hole in the earthwork pile; c) pouring concrete into the second drill hole, and drilling a third drill hole in the concrete after the concrete reaches preset strength, so that the concrete between the hole wall of the third drill hole and the hole wall of the second drill hole forms a retaining wall; d, the third drill hole penetrates through the earthwork pile and then extends downwards to a bearing stratum in bed rock below the underground cavity, and e, a pile foundation is arranged in a hole formed by the third drill hole and the first drill hole. The construction method is high in construction efficiency and safety and low in construction cost.
本发明公开了一种钻孔桩穿越地下空洞的护壁成孔施工方法，a）当沿竖向钻设的第一钻孔穿透地下空洞的顶壁后，向第一钻孔中加入土方并压实，形成土方堆；b）在土方堆中钻设第二钻孔；c）向第二钻孔中浇筑混凝土，并当混凝土达到预设强度后在混凝土中钻设第三钻孔，使第三钻孔的孔壁与第二钻孔的孔壁之间的混凝土形成护壁；d）所述第三钻孔穿透土方堆后向下延伸，直至地下空洞下方基岩中的持力层；e）在第三钻孔和第一钻孔所形成的孔洞中设置桩基。本发明施工效率高、安全性高、施工成本低。
Wall protection hole forming construction method for bored pile to penetrate through underground cavity
一种钻孔桩穿越地下空洞的护壁成孔施工方法
ZHANG HUAIYONG (Autor:in) / QIN HAO (Autor:in) / ZENG RUI (Autor:in) / WEI LIN (Autor:in) / SHEN JIA (Autor:in) / HU JUN (Autor:in) / LI JIAJUN (Autor:in) / CHEN ZHIHUI (Autor:in) / ZHOU JIE (Autor:in) / FAN GUANGBING (Autor:in)
20.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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