Stratum monitoring device for tunnel and deep foundation pit construction
A technology for monitoring devices and deep foundation pits, which is applied in the field of foundation soil survey, infrastructure engineering, construction, etc. It can solve the problems of inconvenient installation and difficulty in adjusting the monitoring depth of monitors, etc., and achieve easy monitoring and easy installation and fixation. Effect
Active Publication Date: 2020-09-01
NANJING UNIV OF SCI & TECH
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Problems solved by technology
[0003] However, the existing magnetic ring and multi-point displacement meter monitoring devices are inconvenient to install, and the monitoring depth of the monitor is not easy to adjust. Therefore, we propose a stratum monitoring device for tunnel and deep foundation pit construction
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] see Figure 1-3 , the present invention provides a technical solution: a formation monitoring device for tunnel deep foundation pit construction, including a base plate 1, a threaded sleeve 2 is embedded and fixed on the upper end of the base plate 1, and a screw rod 3 is threaded inside the threaded sleeve 2, One end of the screw rod 3 is rotatably connected with a support plate 4, the upper end of the support plate 4 is fixedly installed with a first ...
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The invention discloses a stratum monitoring device for tunnel and deep foundation pit construction. The device comprises a base plate, wherein a threaded sleeve is fixedly embedded into the upper endof the base plate; the interior of the threaded sleeve is in threaded connection with a screw; one end of the screw is rotatably connected to a supporting plate; a first driving motor is fixedly arranged at the upper end of the supporting plate through a first fixing frame; one end of an output shaft of the first driving motor is fixedly connected to one end of the screw through a coupling; the other end of the screw is rotatably connected to a fixed block; a wireless monitoring probe is arranged at the lower end of the fixed block; a telescopic rod is arranged at the upper end of the base plate; and one end of the telescopic rod is fixedly welded to the lower end of the supporting plate. According to the device, the screw is driven to rotate through the first driving motor, due to the fact that the screw is in threaded connection with the threaded sleeve, the screw can ascend and descend by rotation of the screw, so that the wireless monitoring probe at the other end of the screw isdriven to ascend and descend, and thus different depths of a deep foundation pit can be monitored as needed.
Description
technical field [0001] The invention relates to the technical field of tunnel deep foundation pit construction, in particular to a stratum monitoring device for tunnel and deep foundation pit construction. Background technique [0002] Deep foundation pit refers to a project whose excavation depth exceeds 5 meters, or the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complicated. Deep foundation pit dewatering is an important technical measure for safe excavation of foundation pits . Not only must the water level in the pit be lowered to a safe depth, but also the water level outside the pit must be controlled to effectively protect the environment. This is an important part of the construction project. At present, most of the wells are pumped to test and monitor the pumping effect of the wells. The law of layered compression of the lower strata can provide a strong technical basis for estim...
Claims
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IPC IPC(8): E02D1/00
CPCE02D1/00
Inventor 章杨松朱慧宇
Owner NANJING UNIV OF SCI & TECH