Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deep foundation pit and ultra-deep foundation pit pile-anchor support method
The invention discloses a deep foundation pit and ultra-deep foundation pit pile-anchor support method, in particular to a deep foundation pit and ultra-deep foundation pit pile-anchor support method used for the field of building foundation pit support engineering. The invention provides the deep foundation pit and ultra-deep foundation pit pile-anchor support method which is capable of avoiding the condition that a support pile building-in section soil body is not in a converged state, so that a support structure fails, and comprises the following steps: a, the soil sample cohesion force c of a support pile building-in section and an inner friction angle phi are measured; b, the deformation state bearing force Ps<(2)> of the support pile building-in section and a soil counterforce ps at the corresponding position are calculated; c, Ps<(2)> is compared with ps; d, if ps is larger than Ps<(2)>, the support pile size parameter is adjusted or the building-in section depth is increased; e, the step b to the step d are repeated until ps is smaller than or equal to Ps<(2)>; and f, construction is carried out according to the support pile size and the building-in section depth which are determined in the above steps. According to the deep foundation pit and ultra-deep foundation pit pile-anchor support method, the condition that since a soil body reaches a limit collapse state, the axial force of an upper anchor cable or anchor rod is increased or the upper anchor cable or anchor rod is pulled out, and finally, the support structure failure is avoided.
Deep foundation pit and ultra-deep foundation pit pile-anchor support method
The invention discloses a deep foundation pit and ultra-deep foundation pit pile-anchor support method, in particular to a deep foundation pit and ultra-deep foundation pit pile-anchor support method used for the field of building foundation pit support engineering. The invention provides the deep foundation pit and ultra-deep foundation pit pile-anchor support method which is capable of avoiding the condition that a support pile building-in section soil body is not in a converged state, so that a support structure fails, and comprises the following steps: a, the soil sample cohesion force c of a support pile building-in section and an inner friction angle phi are measured; b, the deformation state bearing force Ps<(2)> of the support pile building-in section and a soil counterforce ps at the corresponding position are calculated; c, Ps<(2)> is compared with ps; d, if ps is larger than Ps<(2)>, the support pile size parameter is adjusted or the building-in section depth is increased; e, the step b to the step d are repeated until ps is smaller than or equal to Ps<(2)>; and f, construction is carried out according to the support pile size and the building-in section depth which are determined in the above steps. According to the deep foundation pit and ultra-deep foundation pit pile-anchor support method, the condition that since a soil body reaches a limit collapse state, the axial force of an upper anchor cable or anchor rod is increased or the upper anchor cable or anchor rod is pulled out, and finally, the support structure failure is avoided.
Deep foundation pit and ultra-deep foundation pit pile-anchor support method
LI HAO (Autor:in) / CAI ZHONGBIN (Autor:in) / ZHOU JUN (Autor:in) / LI JIAN (Autor:in) / HU WEISHAN (Autor:in) / CHEN YAJUN (Autor:in) / SONG YUANYUAN (Autor:in) / ZHANG LIANGQUAN (Autor:in) / CHE ZHONGXIANG (Autor:in) / LI QIANG (Autor:in)
23.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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