Device and method for visual cement slurry gelation strength monitoring of retaining wall

Abstract

The invention relates to a visual monitoring device and method for cement slurry cementitious strength of a retaining wall, wherein the cement slurry cementation strength monitoring method comprises: using pressurized and heated fluid to provide a controllable pressure to a reaction kettle containing cement slurry and temperature to simulate the temperature and pressure state of the cement slurry under the corresponding formation; after the cement slurry is set and hardened for a preset time, fluid is applied to the pressurized pipeline extending into the cement slurry; according to the nozzle observed through the reactor window The fluid pressure value P at the same time when the shape change of the cement slurry is recorded at the same time; the cement slurry gel strength monitoring device includes: a reaction kettle, which has a pressure chamber for accommodating the cement slurry, and a pressure chamber is connected to the top of the heating part; To provide heat energy to the reactor; the pressure chamber at the top of the reactor is connected with an input pipeline for injecting pressurized fluid into it, and the side of the reactor is connected with at least one first measuring tube configured to extend into the cement slurry, and the reactor has a A first visualization window corresponding to the first probe.

Description

technical field [0001] The invention relates to the technical field of cement slurry gel strength monitoring, in particular to a visual cement slurry gel strength monitoring device and method for retaining walls. Background technique [0002] A retaining wall refers to a structure that supports roadbed fill or hillside soil and prevents the deformation and instability of fill or soil. In the cross section of the retaining wall, the part directly in contact with the supported soil is called the back of the wall; the part opposite to the back of the wall is called the wall; the part in direct contact with the foundation is called the base; The top surface of the wall is called the top of the wall; the front end of the base is called the toe of the wall; the rear end of the base is called the heel of the wall. According to different protection requirements, retaining walls can be divided into gravity retaining walls, anchor retaining walls, thin-wall retaining walls, reinforce...

AI Technical Summary

Problems solved by technology

However, there are still many deficiencies in the existing devices or methods for testing cement bond strength indoors, such as: (1) lack of simulation methods for the pressure and temperature state of the in-situ formation, and the final experimental data is not convincing, so it cannot Accurately and effectively provide comprehensive experimental data support for on-site construction; (2) The process of the experiment is often invisible, because it is impossible to observe the microscopic state changes of the cement slurry in each setting period, so it is impossible to detect any hydration moment of the cement slurry Therefore, the final evaluation result of the cement slurry coagulation quality is also inaccurate

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