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Foundation pit top horizontal displacement monitoring method
The invention discloses a foundation pit top horizontal displacement monitoring method which comprises a longitudinal foundation pit edge monitoring point monitoring link and a transverse foundation pit edge monitoring point monitoring link. The longitudinal foundation pit edge monitoring point monitoring link includes the following steps that 1, firstly a foundation pit corner portion point B1 is selected to serve as a static benchmark point, monitoring points are set on two longitudinal edges of a foundation pit respectively, the monitoring points before excavation are Bi and C i+1 (i=1, 2,......n) respectively, the corresponding monitoring points after excavation become B' i and C' i+1 respectively; 2, before excavation is conducted on the foundation pit, the distance between B i and B i+1 is monitored to be B i * B i+1, and the distance between the B i+1 and the C i+1 is monitored to be B i+1* C i+1; 3, after excavation is conducted on the foundation pit, the distance between the B' i and the C' i+1 is monitored to be B' i *C' i+1, and the distance between the B' i+1 and C' i+1 is monitored to be B' i+1 * C' i+1; 4, the horizontal displacement of the monitoring point Bi and the horizontal displacement of the monitoring point C i are obtained according to the value of the B i * B i+1, the B i+1* C i+1, the B' i *C' i+1 and the B' i+1 * C' i+1. The horizontal displacement monitoring method is high in measuring accuracy and low in requirement for professional skills of monitoring personnel, and monitoring can be finished conveniently just by operation of a single person.
Foundation pit top horizontal displacement monitoring method
The invention discloses a foundation pit top horizontal displacement monitoring method which comprises a longitudinal foundation pit edge monitoring point monitoring link and a transverse foundation pit edge monitoring point monitoring link. The longitudinal foundation pit edge monitoring point monitoring link includes the following steps that 1, firstly a foundation pit corner portion point B1 is selected to serve as a static benchmark point, monitoring points are set on two longitudinal edges of a foundation pit respectively, the monitoring points before excavation are Bi and C i+1 (i=1, 2,......n) respectively, the corresponding monitoring points after excavation become B' i and C' i+1 respectively; 2, before excavation is conducted on the foundation pit, the distance between B i and B i+1 is monitored to be B i * B i+1, and the distance between the B i+1 and the C i+1 is monitored to be B i+1* C i+1; 3, after excavation is conducted on the foundation pit, the distance between the B' i and the C' i+1 is monitored to be B' i *C' i+1, and the distance between the B' i+1 and C' i+1 is monitored to be B' i+1 * C' i+1; 4, the horizontal displacement of the monitoring point Bi and the horizontal displacement of the monitoring point C i are obtained according to the value of the B i * B i+1, the B i+1* C i+1, the B' i *C' i+1 and the B' i+1 * C' i+1. The horizontal displacement monitoring method is high in measuring accuracy and low in requirement for professional skills of monitoring personnel, and monitoring can be finished conveniently just by operation of a single person.
Foundation pit top horizontal displacement monitoring method
XIA CAICHU ( author ) / BAI XUEYING ( author ) / CHEN ZHONGQING ( author )
2015-05-20
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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