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A platform for research: civil engineering, architecture and urbanism
Foundation pit pile wall integrated support construction method under complex conditions
The invention relates to the technical field of foundation pit supporting, and discloses a foundation pit pile wall integrated supporting construction method under complex conditions, which comprises the following steps: S100, digging groove holes, S110, sequentially grabbing the groove holes to a mid-weathered rock surface by a soil layer hydraulic grab bucket; s120, a rotary drilling rig is adopted to drill holes in the bottom of the first groove section to the pile bottom elevation; s130, at the bottom of the first groove section, groove milling is conducted in sequence to reach the wall bottom elevation, and therefore an underground diaphragm wall groove is formed; s140, slag drawing-out and hole cleaning are conducted on the cast-in-place pile hole and the underground diaphragm wall groove; s200, the wall reinforcement mesh on the upper portion and the pile reinforcement cage on the lower portion are connected together, and the whole is put down; and S300, concrete is poured into the cast-in-place pile holes and the underground diaphragm wall grooves, and the pile-wall integrated supporting structure is formed. And the grooving time is shortened, disturbance to an upper soft soil layer is reduced, and the occurrence probability of hole collapse and peripheral settlement is reduced. The requirements on grooving equipment and process can be reduced, the equipment loss is reduced, the grooving efficiency is improved, the construction cost is reduced, and the project progress can be smoothly promoted.
本发明涉及基坑支护的技术领域，公开了复杂条件下基坑桩墙一体化支护施工方法，包括以下步骤：S100：开挖槽孔，S110：土层液压抓斗分序抓槽至中风化岩面；S120：采用旋挖钻机在第一槽段的底部钻孔至桩底标高；S130：在第一槽段的底部，分序铣槽至墙底标高，从而形成地连墙槽；S140：对灌注桩孔和地连墙槽掏渣清孔；S200：将上部的墙钢筋网与下部的桩钢筋笼连接在一起，并整体下放；S300：向灌注桩孔和地连墙槽中灌注混凝土，形成桩墙一体化支护结构。成槽时间缩短，减少了对上部软弱土层产生的扰动，降低了塌孔和引起周边沉降的发生概率。对成槽设备、工艺要求会降低，减少了设备损耗，提高了成槽效率，降低了施工成本，有利于项目进程的顺利推进。
Foundation pit pile wall integrated support construction method under complex conditions
The invention relates to the technical field of foundation pit supporting, and discloses a foundation pit pile wall integrated supporting construction method under complex conditions, which comprises the following steps: S100, digging groove holes, S110, sequentially grabbing the groove holes to a mid-weathered rock surface by a soil layer hydraulic grab bucket; s120, a rotary drilling rig is adopted to drill holes in the bottom of the first groove section to the pile bottom elevation; s130, at the bottom of the first groove section, groove milling is conducted in sequence to reach the wall bottom elevation, and therefore an underground diaphragm wall groove is formed; s140, slag drawing-out and hole cleaning are conducted on the cast-in-place pile hole and the underground diaphragm wall groove; s200, the wall reinforcement mesh on the upper portion and the pile reinforcement cage on the lower portion are connected together, and the whole is put down; and S300, concrete is poured into the cast-in-place pile holes and the underground diaphragm wall grooves, and the pile-wall integrated supporting structure is formed. And the grooving time is shortened, disturbance to an upper soft soil layer is reduced, and the occurrence probability of hole collapse and peripheral settlement is reduced. The requirements on grooving equipment and process can be reduced, the equipment loss is reduced, the grooving efficiency is improved, the construction cost is reduced, and the project progress can be smoothly promoted.
本发明涉及基坑支护的技术领域，公开了复杂条件下基坑桩墙一体化支护施工方法，包括以下步骤：S100：开挖槽孔，S110：土层液压抓斗分序抓槽至中风化岩面；S120：采用旋挖钻机在第一槽段的底部钻孔至桩底标高；S130：在第一槽段的底部，分序铣槽至墙底标高，从而形成地连墙槽；S140：对灌注桩孔和地连墙槽掏渣清孔；S200：将上部的墙钢筋网与下部的桩钢筋笼连接在一起，并整体下放；S300：向灌注桩孔和地连墙槽中灌注混凝土，形成桩墙一体化支护结构。成槽时间缩短，减少了对上部软弱土层产生的扰动，降低了塌孔和引起周边沉降的发生概率。对成槽设备、工艺要求会降低，减少了设备损耗，提高了成槽效率，降低了施工成本，有利于项目进程的顺利推进。
Foundation pit pile wall integrated support construction method under complex conditions
复杂条件下基坑桩墙一体化支护施工方法
LEI BIN (author) / XUE RUI (author) / ZHANG JINGKE (author) / WANG TONG (author) / WANG ZHIGANG (author) / HUANG BIN (author) / LI TAO (author) / HONG YUJIAO (author) / HU CHANGQIANG (author) / SHEN NONGYUN (author)
2024-04-09
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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