Deep cement soil slurry sampling device and method

Abstract

The invention discloses a deep cement soil slurry sampling device and method, aiming at providing a deep cement soil slurry sampling device and method capable of collecting cement soil slurry samplesof underground cement soil continuous walls of any depth as needed, and providing the required cement soil slurry samples for experimental analysis. The device comprises the following parts of a lowering connecting pipe; a bottom sampling pipe, wherein the upper end of the bottom sampling pipe is connected to the lower end of the lowering connecting pipe, the lower end of the bottom sampling pipeis closed, the bottom sampling pipe comprises a lower slurry feeding pipe and an upper slurry feeding pipe located above the lower slurry feeding pipe, the cross-sectional area of the upper slurry feeding pipe is larger than that of the lower slurry feeding pipe, and a slurry inlet is provided on the side wall of the lower slurry feeding tube; a sliding block slidably arranged in the lower slurryfeeding tube for sealing the slurry inlet; and a connecting rope, of which the lower end is connected to the sliding block, and the upper end passes upward through the lowering connecting pipe.

Description

technical field [0001] The present invention relates to a deep layer cement soil slurry sampling device and sampling method, in particular to a deep layer cement soil slurry sampling device and sampling method for extracting cement soil slurry under construction conditions such as TRD construction or triaxial stirring pile construction. Background technique [0002] TRD construction method and three-axis mixing pile construction are the current construction methods of underground cement-soil diaphragm wall. In order to control the cement-soil slurry in the underground cement-soil diaphragm wall constructed by TRD construction method and three-axis mixing pile construction, it is necessary to control the cement-soil slurry of the underground cement-soil diaphragm wall. Slurry sampling and experimental analysis are carried out to achieve the purpose of controlling the quality of the wall; however, at present, the sampling of the cement-soil slurry of the underground cement-soil...

AI Technical Summary

Problems solved by technology

[0002] TRD construction method and three-axis mixing pile construction are the current construction methods of underground cement-soil diaphragm wall. In order to control the cement-soil slurry in the underground cement-soil diaphragm wall constructed by TRD construction method and three-axis mixing pile construction, it is necessary to control the cement-soil slurry of the underground cement-soil diaphragm wall. Slurry sampling and experimental analysis are carried out to achieve the purpose of controlling the quality of the wall; however, at present, the sampling of the cement-soil slurry of the underground cement-soil diaphragm wall is only for the upper layer of cement-soil slurry, and there is no instrument and method suitable for sampling the deep-layer cement-soil slurry. Sampling and analysis of the cement-soil slurry of the underground cement-soil diaphragm wall in the deep part

Images