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A platform for research: civil engineering, architecture and urbanism
Anti-floating anchor rod construction method under geological conditions of high water level and gravel
The invention relates to the technical field of anti-floating anchor rod construction, and provides an anti-floating anchor rod construction method under the geological condition of high water level and gravel, a wall protection sleeve is vertically arranged, a drill rod of a drilling machine is arranged in the wall protection sleeve, and in the drilling process of the drill rod, the wall protection sleeve is synchronously pressed into a target hole; a prefabricated anchor rod body is fed into the target hole; pulling out the wall protection sleeve, sending a grouting spray pipe of a high-pressure rotary spraying machine to a preset depth in the target hole, dividing the grouting spray pipe into a plurality of construction sections in the height direction of the target hole, and performing high-pressure guniting operation synchronous with lifting and rotating of the grouting spray pipe on the construction sections one by one from bottom to top; after high-pressure guniting operation of each construction section is completed, high-pressure re-guniting operation of the construction section is carried out; and a consolidation body wrapping the anchor rod body is formed. The wall protection sleeve can effectively prevent hole collapse of the gravel stratum, protect the drill bit and limit the drill rod, and the hole forming quality can be improved. And the anti-pulling strength of the anti-floating anchor rod can be effectively improved.
本申请涉及抗浮锚杆施工技术领域，提供了一种高水位连砂石地质条件下抗浮锚杆施工方法，将护壁套管竖立设置，将钻机的钻杆设置在护壁套管内，在钻杆钻进过程中，同步的将护壁套管压入目标孔内；将预制的锚杆本体送入目标孔内；拔出护壁套管，将高压旋喷机的注浆喷管送入目标孔内的预设深度，沿目标孔的高度方向划分为若干个施工段，由下至上逐个施工段的进行注浆喷管的提升与旋转同步的高压喷浆作业；每个施工段完成高压喷浆作业后，进行该施工段的高压复喷浆作业；形成包裹锚杆本体的固结体。护壁套管可有效防止砂石地层的塌孔，保护钻头并对钻杆具有限位作用，可提高成孔质量。可有效提高抗浮锚杆的抗拔强度。
Anti-floating anchor rod construction method under geological conditions of high water level and gravel
The invention relates to the technical field of anti-floating anchor rod construction, and provides an anti-floating anchor rod construction method under the geological condition of high water level and gravel, a wall protection sleeve is vertically arranged, a drill rod of a drilling machine is arranged in the wall protection sleeve, and in the drilling process of the drill rod, the wall protection sleeve is synchronously pressed into a target hole; a prefabricated anchor rod body is fed into the target hole; pulling out the wall protection sleeve, sending a grouting spray pipe of a high-pressure rotary spraying machine to a preset depth in the target hole, dividing the grouting spray pipe into a plurality of construction sections in the height direction of the target hole, and performing high-pressure guniting operation synchronous with lifting and rotating of the grouting spray pipe on the construction sections one by one from bottom to top; after high-pressure guniting operation of each construction section is completed, high-pressure re-guniting operation of the construction section is carried out; and a consolidation body wrapping the anchor rod body is formed. The wall protection sleeve can effectively prevent hole collapse of the gravel stratum, protect the drill bit and limit the drill rod, and the hole forming quality can be improved. And the anti-pulling strength of the anti-floating anchor rod can be effectively improved.
本申请涉及抗浮锚杆施工技术领域，提供了一种高水位连砂石地质条件下抗浮锚杆施工方法，将护壁套管竖立设置，将钻机的钻杆设置在护壁套管内，在钻杆钻进过程中，同步的将护壁套管压入目标孔内；将预制的锚杆本体送入目标孔内；拔出护壁套管，将高压旋喷机的注浆喷管送入目标孔内的预设深度，沿目标孔的高度方向划分为若干个施工段，由下至上逐个施工段的进行注浆喷管的提升与旋转同步的高压喷浆作业；每个施工段完成高压喷浆作业后，进行该施工段的高压复喷浆作业；形成包裹锚杆本体的固结体。护壁套管可有效防止砂石地层的塌孔，保护钻头并对钻杆具有限位作用，可提高成孔质量。可有效提高抗浮锚杆的抗拔强度。
Anti-floating anchor rod construction method under geological conditions of high water level and gravel
高水位连砂石地质条件下抗浮锚杆施工方法
LI WENRUI (author) / DENG XIANG (author) / LI GUO (author) / XUE YU (author) / ZENG LINGKUN (author) / CAI ZHONGXIN (author) / CAO YONGFEI (author) / CHEN YONG (author) / SU LEI (author)
2023-09-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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