Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction process of rotary excavating hole forming construction method pile
The invention discloses a construction process of a rotary excavating hole forming construction method pile. The construction process comprises the steps that (10) a first pile hole is drilled, earthwork in the first pile hole is taken out, a multi-curved-surface protective cylinder is placed in the first pile hole, and earthwork backfilling is carried out on the first pile hole; (20) a second pile hole is drilled, earthwork in the second pile hole is taken out, the first pile hole and the second pile hole are arranged at intervals and are in lap joint with each other to form a continuous groove, earthwork backfilling is carried out on the second pile hole, and the multi-curved-surface protective cylinder is pulled out; and (30) rotary spraying stirring pile or cement soil stirring pile construction is carried out in the continuous groove, and before cement soil is not solidified, profile steel is inserted to form a rotary excavating hole forming construction method wall. During construction, the first pile hole is drilled firstly, the multi-curved-surface protective cylinder is placed, the situation that a drill bit deviates from the original set position when the second pile holeis drilled can be effectively avoided or reduced, the continuous wall is constructed in a hard soil layer in a pile hole mode, and therefore the construction efficiency is improved.
本发明公开了一种旋挖成孔工法桩的施工工艺，步骤为：(10)钻设第一桩孔，并将第一桩孔内的土方取出，将多曲面防护筒放置到第一桩孔内，对第一桩孔进行土方回填；(20)钻设第二桩孔，并将第二桩孔内的土方取出，第一桩孔与第二桩孔间隔设置并相互搭接，形成连续槽；对第二桩孔进行土方回填；拔出多曲面防护筒；(30)在连续槽内进行旋喷搅拌桩或水泥土搅拌桩施工；在水泥土未凝固前，插入型钢，形成旋挖成孔工法墙。在施工时，先钻设第一桩孔，并放置多曲面防护筒，能够有效避免或减少在钻设第二桩孔时，钻头偏离原设定位置，达到在硬质土层中采用桩孔的方式来施工连续墙，以提高施工效率。
Construction process of rotary excavating hole forming construction method pile
The invention discloses a construction process of a rotary excavating hole forming construction method pile. The construction process comprises the steps that (10) a first pile hole is drilled, earthwork in the first pile hole is taken out, a multi-curved-surface protective cylinder is placed in the first pile hole, and earthwork backfilling is carried out on the first pile hole; (20) a second pile hole is drilled, earthwork in the second pile hole is taken out, the first pile hole and the second pile hole are arranged at intervals and are in lap joint with each other to form a continuous groove, earthwork backfilling is carried out on the second pile hole, and the multi-curved-surface protective cylinder is pulled out; and (30) rotary spraying stirring pile or cement soil stirring pile construction is carried out in the continuous groove, and before cement soil is not solidified, profile steel is inserted to form a rotary excavating hole forming construction method wall. During construction, the first pile hole is drilled firstly, the multi-curved-surface protective cylinder is placed, the situation that a drill bit deviates from the original set position when the second pile holeis drilled can be effectively avoided or reduced, the continuous wall is constructed in a hard soil layer in a pile hole mode, and therefore the construction efficiency is improved.
本发明公开了一种旋挖成孔工法桩的施工工艺，步骤为：(10)钻设第一桩孔，并将第一桩孔内的土方取出，将多曲面防护筒放置到第一桩孔内，对第一桩孔进行土方回填；(20)钻设第二桩孔，并将第二桩孔内的土方取出，第一桩孔与第二桩孔间隔设置并相互搭接，形成连续槽；对第二桩孔进行土方回填；拔出多曲面防护筒；(30)在连续槽内进行旋喷搅拌桩或水泥土搅拌桩施工；在水泥土未凝固前，插入型钢，形成旋挖成孔工法墙。在施工时，先钻设第一桩孔，并放置多曲面防护筒，能够有效避免或减少在钻设第二桩孔时，钻头偏离原设定位置，达到在硬质土层中采用桩孔的方式来施工连续墙，以提高施工效率。
Construction process of rotary excavating hole forming construction method pile
一种旋挖成孔工法桩的施工工艺
LYU CHAO (Autor:in) / WANG SHAOHUA (Autor:in) / LIU FEI (Autor:in) / ZHAO HANMEI (Autor:in) / WANG TAO (Autor:in) / GE LIRUI (Autor:in) / WANG JIANLAN (Autor:in) / LI RENMIN (Autor:in)
09.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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