A device and method for monitoring the settlement of layered soil

Abstract

The invention discloses a filing layered sedimentation monitoring device and method. The monitoring device comprises a bottom sedimentation monitoring unit, a middle sedimentation monitoring unit and a ground surface sedimentation monitoring unit which are buried in a soil layer to be monitored from bottom to top and are vertically arranged. Burying holes are formed in the soil layer to be monitored. An anchoring head is arranged under the bottom sedimentation monitoring unit. The bottom sedimentation monitoring unit, the middle sedimentation monitoring unit and the ground surface sedimentation monitoring unit are all provided with inclinometer pipes, extensible pipes arranged on the outer sides of the inclinometer pipes in a sleeving mode and displacement sensors installed on the upper portions of the inner sides of the inclinometer pipes. The monitoring method comprises the steps that firstly, drilling of the burying holes is conducted; secondly, the bottom sedimentation monitoring unit is installed; thirdly, the middle sedimentation monitoring unit is installed; fourthly, the ground surface sedimentation monitoring unit is installed; and fifthly, layered sedimentation monitoring is conducted. The filing layered sedimentation monitoring device and method are reasonable in design, convenient and easy to operate, convenient to bury, high in measuring precision and capable of effectively solving the problems that existing layered sedimentation monitoring equipment is large in equipment burying workload and low in measuring precision.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering monitoring, and in particular relates to a device and method for monitoring subsidence of filling layers. Background technique [0002] In fill subgrades, embankments, airports and urban construction land leveling projects, internal layered settlement monitoring is the main content of geotechnical engineering monitoring. The settlement monitoring data during the construction period and the post-construction period of the filling soil have a guiding role in controlling the construction rate, ensuring the construction quality and optimizing the design parameters. [0003] At present, the commonly used layered settlement monitoring equipment mainly includes layered settlement indicators, electromagnetic settlement instruments, static levels, horizontal fixed inclinometers, vibrating wire settlement instruments, etc. Among them, the layered settlement marker monitoring method is to b...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a layered subsidence monitoring device for filling soil, which is simple in structure, reasonable in design, easy to use and operate, convenient to embed equipment, and high in measurement accuracy. The existing layered settlement monitoring equipment has problems such as heavy equipment embedding workload and low measurement accuracy

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