Longitudinal force monitoring system and monitoring method for small diameter water pipeline shield segments
A technology for water delivery pipelines and shield segments, which is applied in the direction of measuring the force of frequency change by measuring the stress of vibration elements, can solve problems such as inapplicability, and achieve the effects of simple structure, shortened construction period and low cost.
Active Publication Date: 2019-04-09
BEIJING URBAN CONSTR GROUP +1
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Problems solved by technology
[0003] At present, most of the research on the force of the shield segment is focused on the force analysis in the cross section of the pipeline, which is applied to ensure the stability of the segment structure, etc., and the longitudinal force of the segment during the construction of the small-diameter shield in the sand and pebble formation. There are few reports in the research, and the existing force analysis results and monitoring methods are not suitable for longitudinal force monitoring in this situation
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[0035] Such as figure 1 and Figure 6 As shown, the longitudinal force monitoring system of the small-diameter water pipeline shield segment of the present invention includes a sensor 1 arranged on the shield segment 5, a signal acquisition system 2 electrically connected to the signal output end of the sensor 1 in turn, and Remote control system 3; monitoring sections 4 are set at vertical intervals along the axial direction of the water pipeline, and the distance between monitoring sections 4 is 30-35m, and 5 monitoring sections 4 are set in total, such as figure 2 As shown, each monitoring section 4 contains 6 pieces of shield segments 5, and monitoring points are evenly set on each monitoring section 4, and sensors 1 are arranged at the monitoring points, and the outer diameter of the segments is 3500-4000mm; the sensors 1 are set at Shield segments 5 inside, such as image 3 As shown, the strain sensing direction is parallel to the direction of the water pipeline, and ...
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Abstract
The invention relates to the technical field of online shield construction monitoring, and discloses a longitudinal force bearing monitoring system and a monitoring method for a small-diameter water pipeline shield segment. The small-diameter water pipeline has an outer diameter of 3500 to 4000 mm, and comprises sensors arranged on the shield segment, signal acquisition systems electrically connected with the signal output ends of the sensors and a remote control system, wherein monitoring sections are arranged along the axis direction of the water pipeline at vertical intervals, and sensors are uniformly arranged on the monitoring sections; the sensors are arranged inside the shield segment, the strain sensing directions are parallel with the water pipeline direction, and the signal output ends of the sensors are electrically connected with the signal input ends of the signal acquisition systems; and the signal output ends of the signal acquisition systems are in electric connection or signal connection with the remote control system. The longitudinal force bearing condition of the shield segment along the water pipeline direction in the shield construction can be online monitored, and the accuracy is high.
Description
technical field [0001] The invention relates to the technical field of on-line monitoring of shield construction, in particular to a longitudinal force monitoring system and a monitoring method for shield segments of small-diameter water delivery pipelines. Background technique [0002] With the acceleration of the construction of national sponge cities and underground comprehensive pipe corridors, the demand for urban non-excavation construction continues to grow, and sewage pipeline shield construction is also increasingly used in underground engineering construction. Different from the function of the subway, the drainage shield is stricter than the subway shield in terms of body seepage prevention, because the leakage of the sewage pipe will seriously pollute the groundwater resources and the environment, and once it is in operation, it will be difficult to repair internal leaks. Therefore, the shield After the construction is completed, a certain longitudinal pressure n...
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IPC IPC(8): G01L1/10
CPCG01L1/10
Inventor 马军英杨金钟任红涛金奕段劲松李笑男刘磊王立国
Owner BEIJING URBAN CONSTR GROUP