A scaled retractable deep foundation pit sidewall sampler

Abstract

The invention discloses a scalable deep foundation pit side wall sampler with scales, which belongs to the technical field of deep foundation pit soil sampling equipment. A retractable deep foundation pit side wall sampler with scale, including an L-shaped mobile seat, a telescopic scale rack is arranged above the U-shaped block, and the lower end of the telescopic scale rack extends through the inside of the sleeve to the outside and is fixed with a positive Reverse motor, under the positive and negative motor, there is a counter-rotation adjustment box, under the counter-rotation adjustment box, there is a sampling control box, and a sampling box is fixed on the lower side wall of the adjustment rack. The design of multiple sampling boxes realizes the soil Multi-group sampling meets the needs of different reagents for different soil components, effectively avoids the occurrence of cross-contamination, which affects the results of soil structure testing, and provides a guarantee for later construction, and the collector passes sampling The box can be extended and rotated to be directly inserted into the side wall of the deep foundation pit to break up the soil for sampling, which effectively improves the sampling efficiency.

Description

technical field [0001] The invention relates to the technical field of soil sampling equipment for deep foundation pits, in particular to a scalable deep foundation pit side wall sampler with scales. Background technique [0002] With the rise of a large number of high-rise buildings and underground buildings in cities, a large number of deep foundation pit projects have been produced, and as deep foundation pits continue to become deeper and larger, engineering and technical personnel are also paying more and more attention to the geographical location of deep foundation pits. The influence of factors such as soil quality. The structural composition of the soil, the degree of hardness and looseness of the soil, and whether the soil has been seriously polluted or nuclear polluted have a decisive effect on whether it is suitable for the continuous construction of the deep foundation pit project. The detection of different components of the soil and soil Need to use different...

AI Technical Summary

Problems solved by technology

The structural composition of the soil, the degree of hardness and looseness of the soil, and whether the soil has been seriously polluted or nuclear polluted have a decisive effect on whether it is suitable for the continuous construction of the deep foundation pit project. The detection of different components of the soil and soil Need to use different reagents to achieve the detection of different components, the existing sampling device can not carry out multiple sampling, in order to avoid cross-contamination affecting the detection results need to collect multiple groups of sample soil, the prior art publication number is CN210002381U document provides a scale Retractable deep foundation pit side wall sampler, the sampler is provided with a U-shaped seat, a guide seat, an installation cylinder, a temporary soil storage cylinder and a drill bit, the guide seat is movably connected in the U-shaped seat through a rotating shaft, and the rotating shaft and the servo The positive and negative motors are connected, and the other end of the temporary soil storage cylinder is provided with a feed inlet, and the drill bit is installed on the temporary soil storage cylinder around the feed inlet, so that the collector can work normally. Although the device has many beneficial effects, it still exists. The following problems: The sampler only has one sampling box, and multiple samples cannot be taken. Because the person is on the upper side, the drill bit in the horizontal direction is hard to bear force, and the soil is broken, and the drill bit of the sampler is in the front collection box. In the end, the soil sample will fall directly, and the soil cannot be effectively sampled. When sampling, the sampler must be lowered to a certain height to sample. Because the sampler is heavy, it is easy to be affected by gravity when holding the sampler manually. It is very dangerous to make the sampling personnel fall into the deep foundation pit. In addition, CN109490010A and CN208792291U in the existing patented technology relate to a foundation pit sampling system with different soil environments, which adopt a symmetrical support lifting mechanism, but this type of lifting structure needs to occupy a wide width, and requires a belt and piston drive structure, which is not suitable for long-term field operations with dust. The sampling system needs to span both ends of the belt sampling position, so it is necessary to have enough hardening space and operation around the foundation pit. space, in view of this, we propose a scalable deep foundation pit side wall sampler with scale

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