Early warning and monitoring method for collapse prevention of deep foundation pit

• Main Authors: DAI ZHENG, ZHAO XIAOMENG, CHEN RUJIAO
• Format: Patent
• Language: Chinese; English
• Published: 24.02.2023
• Subjects: ALARM SYSTEMS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING

The invention relates to foundation pit monitoring, in particular to an early warning and monitoring method for collapse prevention of a deep foundation pit. Comprising the following steps that A, a stay wire foundation is constructed at the slope toe position of the foundation pit bottom, and a connecting rod foundation is constructed at the position, close to the slope wall, of the slope top; b, a spring is arranged on the inner side of the slope wall of the foundation pit, and the two ends of the spring are connected with a cantilever connecting rod and a stay wire foundation through stay wires correspondingly; c, mounting a contact device on the spring, wherein the contact device comprises a T-shaped inner feeler lever and a hook-shaped outer feeler lever; d, the inner feeler lever is connected with an alarm in series through a wire, the alarm is electrically connected with one electrode of a power source through a wire, and the other electrode of the power source is electrically connected with the outer