Method for inserting deep-loosening and deep-applying gun into soil by using soil liquefaction technology

Abstract

The invention provides a method for inserting a deep-loosening and deep-applying gun into soil by utilizing a soil liquefaction technology. Deep-loosening and deep-applying operation is carried out byadopting soil spraying explosion deep-loosening and material jetting deep-applying (abbreviated as spraying explosion loosening and applying) equipment. The spraying explosion loosening and applyingequipment comprises the deep-loosening and deep-applying gun, wherein the deep-loosening and deep-applying gun is a hollow pipeline and is provided with an air inlet and a feeding opening; and spraying holes are formed in the side wall of the deep-loosening and deep-applying gun. The method for inserting the deep-loosening and deep-applying gun into the soil comprises the following steps: when thedeep-loosening and deep-applying gun is inserted into the soil, controlling the vibration frequency range of the deep-loosening and deep-applying gun to be 5-80 Hz, the exciting force to be 0.2-80 T,the outer tube diameter of the deep-loosening and deep-applying gun to be DN10-DN200, and the soil inserting depth of the deep-loosening and deep-applying gun to be 100 mm- 30 m. According to the method, different required schemes for inserting the deep-loosening and deep-applying gun into the soil for different soil qualities and restoring processes can be well met, the deep-loosening and deep-applying gun can accurately reach a set depth, relatively homogeneous diffusion after deeply applied materials enter the soil is guaranteed, and purposes of accurately restoring and improving the soil,modifying soil layers and ecological restoring are achieved.

Description

technical field [0001] The invention belongs to the technical field of methods for deep loosening and deep application into soil, and in particular relates to a method for deep loosening and deep application of guns into soil by using soil liquefaction technology. Background technique [0002] Soil deep loosening and deep application technology is an important application technology in the process of soil restoration improvement management and plant cultivation. As one of the conservation tillage techniques, soil deep loosening and deep application have been paid more and more attention. Deep loosening and deep application can repair and improve the soil tillage layer, improve soil air permeability and water permeability, and achieve water retention, drought resistance, drainage, waterlogging resistance and conservation. The purpose of fat. According to the needs of plant growth, deep loosening and deep fertilization mostly involve different depths, different vibration freq...

AI Technical Summary

Problems solved by technology

This technology mainly has the following defects: First, plowing and subsoiling operations require high-power tractors, and comprehensive subsoiling cannot be achieved at present; Into the plow layer, the efficiency of deep fertilization is low, and the quality of fertilization is poor; third, subsoiling and deep fertilization are separate operations and cannot be carried out at the same time, resulting in serious soil compaction

The above process has a certain effect, but the defects are very obvious. First, it is powerless to solid materials with poor solubility, and it is difficult to enter the soil; secondly, the depth and uniformity of application are very poor; more importantly, the process is complicated, the construction is difficult, the cycle is long, and the effect is poor. Low degree of material mixing and diffusion, high cost, and serious secondary pollution

[0007] However, when the existing spray blasting loosening equipment is used for deep loosening and deep construction, there are certain difficulties in the operation of deep loosening and deep gunning into the soil. Most of them use cone-shaped equipment, which is controlled by manual or mechanical arms to make the cone However, this method is only suitable for soft soil layers. For soil layers with hard soil or serious compaction, it cannot effectively enter the soil, which makes it more difficult for the operation gun to enter the soil, and its efficiency is low. The quality is not high, and it is often impossible to accurately reach the set depth, and the working gun is prone to deviation when it enters the soil, and it cannot enter the soil perpendicular to the ground. At the same time, due to the low quality of subsoiling and deep application guns, it is impossible to accurately penetrate the soil, resulting in poor quality of subsequent subsoiling and deep construction operations, which affects the effect of subsoiling, especially deep application, and makes the input of materials difficult. The uniformity is very poor, the effect of plant cultivation or soil in-situ restoration is poor, and the material waste rate is high

This has caused a certain impact on the deep loosening and deep construction work, and at the same time increased a certain amount of labor costs. At present, there is no good method for spraying and blasting loosening equipment to penetrate into the soil in hard compacted soil.

[0008] For the fields of deep groundwater pollution, site soil pollution, mine soil restoration, desert control, saline-alkali soil restoration and improvement related environmental protection, soil layer modification and ecological construction, how to accurately achieve deep loosening without damaging the surface and disturbing the soil layer? At present, there is neither a good method nor a good preparation for evenly spreading materials in the soil and deep parts to achieve in-situ soil restoration and improvement. Even rapid entry into the soil is a big problem. Therefore, there is no special research on rapid entry into the soil with deep loosening and deep application guns.

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