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A platform for research: civil engineering, architecture and urbanism
Construction method for steel sheet pile support in case of boulder
The invention belongs to the field of foundation pit excavation and support, and particularly discloses a construction method for a steel sheet pile support in the case of a boulder. A steel sheet pile is subjected to anchoring connection to form a support structure, due to the fact that the hard boulder mingled in a stratum affect construction of the steel sheet pile, a high-pressure jet grouting pile is adopted on the portion with the boulder from the ground, the other portions without the boulders are connected and supported by the steel sheet pile, two I-shaped steel enclosing purlins are erected on the middle portions of the steel sheet pile and the high-pressure jet grouting pile, the steel sheet pile and the I-shaped steel enclosing purlins are connected and fixed through welding brackets, anchor rods penetrate through the I-shaped steel enclosing purlins and are driven into the piles for fixing, and stability maintenance is conducted again by adding steel supports. The defect of improper supporting caused by a shallow burial depth of the steel sheet pile in the case of the boulder can be effectively overcome, the steel sheet pile is reserved at the other positions and the high-pressure jet grouting pile is used at the portion with the boulder, compared with row pile supporting, the soil discharging amount is small, the influence on adjacent buildings is small, in addition, all parts are welded during construction, the operation is easy, the strength is high, and the use and operation are safer.
本发明属于基坑开挖支护领域，具体公开一种钢板桩支护遇漂石时的施工方法，将钢板桩进行锁口连接形成支护结构，由于地层中夹杂坚硬漂石影响钢板桩施工，在有漂石部位自地面采用高压旋喷桩，其他没有漂石的部位采用钢板桩连接支护，在钢板桩与高压旋喷桩中间部位架设两道工字型钢围凛，利用焊接牛腿将钢板桩与工字型钢围檩连接固定，将锚杆穿过工字型钢围檩打入桩内进行固定，附加钢支撑进行再一次维稳，能够有效克服钢板桩由于遇到漂石而埋深较浅出现支护不当的缺陷，仅在漂石部位采用高压旋喷桩其他位置保留钢板桩，相对排桩支护而言，排土量小，对邻近建筑物影响小，另外，施工时各部件之间采用焊接，操作简单、强度高，使用操作更加安全。
Construction method for steel sheet pile support in case of boulder
The invention belongs to the field of foundation pit excavation and support, and particularly discloses a construction method for a steel sheet pile support in the case of a boulder. A steel sheet pile is subjected to anchoring connection to form a support structure, due to the fact that the hard boulder mingled in a stratum affect construction of the steel sheet pile, a high-pressure jet grouting pile is adopted on the portion with the boulder from the ground, the other portions without the boulders are connected and supported by the steel sheet pile, two I-shaped steel enclosing purlins are erected on the middle portions of the steel sheet pile and the high-pressure jet grouting pile, the steel sheet pile and the I-shaped steel enclosing purlins are connected and fixed through welding brackets, anchor rods penetrate through the I-shaped steel enclosing purlins and are driven into the piles for fixing, and stability maintenance is conducted again by adding steel supports. The defect of improper supporting caused by a shallow burial depth of the steel sheet pile in the case of the boulder can be effectively overcome, the steel sheet pile is reserved at the other positions and the high-pressure jet grouting pile is used at the portion with the boulder, compared with row pile supporting, the soil discharging amount is small, the influence on adjacent buildings is small, in addition, all parts are welded during construction, the operation is easy, the strength is high, and the use and operation are safer.
本发明属于基坑开挖支护领域，具体公开一种钢板桩支护遇漂石时的施工方法，将钢板桩进行锁口连接形成支护结构，由于地层中夹杂坚硬漂石影响钢板桩施工，在有漂石部位自地面采用高压旋喷桩，其他没有漂石的部位采用钢板桩连接支护，在钢板桩与高压旋喷桩中间部位架设两道工字型钢围凛，利用焊接牛腿将钢板桩与工字型钢围檩连接固定，将锚杆穿过工字型钢围檩打入桩内进行固定，附加钢支撑进行再一次维稳，能够有效克服钢板桩由于遇到漂石而埋深较浅出现支护不当的缺陷，仅在漂石部位采用高压旋喷桩其他位置保留钢板桩，相对排桩支护而言，排土量小，对邻近建筑物影响小，另外，施工时各部件之间采用焊接，操作简单、强度高，使用操作更加安全。
Construction method for steel sheet pile support in case of boulder
一种钢板桩支护遇漂石时的施工方法
YU GUANGMING (author) / ZHENG WEN (author) / MA GUOSONG (author) / LI KEXIAN (author) / ZHU LIANCHEN (author) / FAN YANXIANG (author) / GUAN HUI (author) / LIU ZHENGWEI (author) / ZHU XIANGFEI (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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