Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for excavating foundation pit in soft soil stratum
The invention discloses a soft soil stratum foundation pit excavation method which is characterized by comprising the following steps: 1) foundation pit support pile construction: measuring the driving position of a support pile according to the size of a foundation pit, firstly driving vertical columnar piles according to the measuring position, driving vertical sheet piles among the columnar piles, and driving the vertical sheet piles into a certain height above the ground, the sinking height of the sheet piles is consistent with the sinking elevation of the columnar piles, and enclosing purlins are arranged on the outer sides of the supporting piles. The trestle bridge in the width direction of the foundation pit is erected on the supporting piles, the trestle bridge can move relative to the foundation pit in the length direction of the foundation pit, the excavator is hoisted to the trestle bridge through a crane, the foundation pit is excavated, advancing and retreating of the excavator are achieved through moving of the trestle bridge, deep sinking of the excavator is avoided due to the fact that the excavator does not make direct contact with the soft soil stratum, and the construction efficiency is improved. A traditional excavation-drying-excavation technology is not needed, the construction period is shortened, the utilization rate of equipment is improved, the operation space of the excavator located on the trestle is increased, and excavation of the foundation pit is better facilitated.
本发明公开了一种软土地层基坑的开挖方法，其特征在于：包括以下步骤：1)基坑支护桩施工：根据基坑尺寸测量出支护桩的打设位置，根据测量位置先打设竖向的柱状桩，柱状桩超出地面一定的高度，在柱状桩之间打设竖向的板桩，板桩的下沉高度与柱状桩下沉标高一致，在支护桩的外侧设置围檩。本发明在支护桩上搭设沿基坑宽度方向的栈桥，且该栈桥能够沿基坑的长度方向相对基坑移动，采用吊车将挖机吊至栈桥上，进行基坑开挖，挖机的前进、后退通过栈桥的移动来实现，因挖机与软土地层不直接接触，避免了挖机的深陷，不需要传统的“挖‑晒‑挖”的工艺，施工工期缩短且设备的利用率提高，位于栈桥上的挖机作业空间增大，更有利于基坑的开挖。
Method for excavating foundation pit in soft soil stratum
The invention discloses a soft soil stratum foundation pit excavation method which is characterized by comprising the following steps: 1) foundation pit support pile construction: measuring the driving position of a support pile according to the size of a foundation pit, firstly driving vertical columnar piles according to the measuring position, driving vertical sheet piles among the columnar piles, and driving the vertical sheet piles into a certain height above the ground, the sinking height of the sheet piles is consistent with the sinking elevation of the columnar piles, and enclosing purlins are arranged on the outer sides of the supporting piles. The trestle bridge in the width direction of the foundation pit is erected on the supporting piles, the trestle bridge can move relative to the foundation pit in the length direction of the foundation pit, the excavator is hoisted to the trestle bridge through a crane, the foundation pit is excavated, advancing and retreating of the excavator are achieved through moving of the trestle bridge, deep sinking of the excavator is avoided due to the fact that the excavator does not make direct contact with the soft soil stratum, and the construction efficiency is improved. A traditional excavation-drying-excavation technology is not needed, the construction period is shortened, the utilization rate of equipment is improved, the operation space of the excavator located on the trestle is increased, and excavation of the foundation pit is better facilitated.
本发明公开了一种软土地层基坑的开挖方法，其特征在于：包括以下步骤：1)基坑支护桩施工：根据基坑尺寸测量出支护桩的打设位置，根据测量位置先打设竖向的柱状桩，柱状桩超出地面一定的高度，在柱状桩之间打设竖向的板桩，板桩的下沉高度与柱状桩下沉标高一致，在支护桩的外侧设置围檩。本发明在支护桩上搭设沿基坑宽度方向的栈桥，且该栈桥能够沿基坑的长度方向相对基坑移动，采用吊车将挖机吊至栈桥上，进行基坑开挖，挖机的前进、后退通过栈桥的移动来实现，因挖机与软土地层不直接接触，避免了挖机的深陷，不需要传统的“挖‑晒‑挖”的工艺，施工工期缩短且设备的利用率提高，位于栈桥上的挖机作业空间增大，更有利于基坑的开挖。
Method for excavating foundation pit in soft soil stratum
一种软土地层基坑的开挖方法
HUI HENGYOU (Autor:in) / JIANG CONGYU (Autor:in) / WU SONGHUA (Autor:in) / KANEE (Autor:in) / YANG ZHONGFENG (Autor:in) / FANG LU (Autor:in) / LIU YUFEI (Autor:in) / WU CHUNYONG (Autor:in) / HU YULONG (Autor:in) / JIA HONGBIN (Autor:in)
08.07.2022
Patent
Elektronische Ressource
Chinesisch
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