Sandy slope microorganism curing liquid and sandy slope treatment method

A technology of microorganisms and solidified liquid, applied in the field of ecological management, can solve the problems of high cost, affecting the treatment effect, and poor growth conditions.

Inactive Publication Date: 2021-09-10
SUZHOU GOLD MANTIS GREEN LANDSCAPE LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing sandy slope treatment technology has the following problems: (1) in the sandy slope reinforcement treatment, due to the extremely loose sand layer, the construction is difficult, resulting in the difficulty of forming holes in the reinforcement construction of anti-slide piles and anchor cables. Deviations, easy to collapse blocks, and collapsed holes seriously affect the treatment effect; (2) sandy slopes are prone to shallow local landslides, and also prone to deep overall landslides. Shallow local landslides mainly rely on shotcrete and grouting anti-seepage methods However, the concrete grout is easy to block the grouting seepage channel during construction, so that the local strength is difficult to meet the design requirements; the deep integral landslide relies on the reinforcement of anchor rods (locks),

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment provides a method for preparing a microorganism cured liquid.

[0051] Preparation of (1) Bacillus pasteurii bacteria: in a sterile environment, picked with a sterile inoculating loop Bacillus pasteurii a ramp ring strain, transferred to seed medium, 30 deg.] C, 150rpm shaking for 24h under conditions , Bacillus pasteurii obtain seed liquid; press 2% inoculum was inoculated in a liquid medium and cultured to an OD600 value of 1.0 when the end of the incubation, bacteria standby.

[0052] Bacillus pasteurii seed medium consisted of 20g / L tryptone, 20g / L urea, 4g / L of sodium chloride, and deionized water, the pH is adjusted using pH adjusting agent is 9.0.

[0053] Bacillus pasteurii broth by extraction with 20g / L of yeast extract, 15g / L sucrose, 2g / L of ammonium sulfate, and distilled water, adjusting the pH using pH adjusting agent is 9.0 to 9.2.

[0054] (2) Preparation of staphylococcal bacteria: in a sterile environment, with a sterile inocula...

Embodiment 2

[0068] The present embodiment were used in Example 1, the cured liquid microorganism Comparative Examples 1 to 3. SLOPE simulation. Wherein, the slope is a slope of 1: 1, the slope of sandy soil particle diameter of 2 ~ 5mm.

[0069] Treatment: according to 350L / m 3 Standard, the nutrient solution is sprayed on the slope, after 15min accordance 100L / m 3 Standard mixing uniformly sprayed bacteria, in this order, every morning, once in the afternoon each spraying, spraying consecutive 5 days.

[0070] 5 days after spraying, the thickness of the consolidated soil detection embodiment of Example 1 of 6.87cm, thickness of the consolidated soil Comparative Example 1 was 5.16cm, soil consolidation Comparative Example 2 has a thickness of 4.63cm, thickness of the consolidated soil of Example 3 3.54cm. Show an example of mixed bacteria embodiment, the curing effect can effectively improve the soil.

Embodiment 3

[0072] The present embodiment were used in Example 1, the cured liquid microorganism Comparative Examples 1 to 3. SLOPE simulation. Wherein, the slope is a slope of 1: 0.5, particle diameter of sandy soil slope of 10 ~ 15mm.

[0073] Treatment:

[0074] (1) is inserted into the grouting pipe injected at sandy slope: THEⅡ grouting material is sand consolidation agent, water cement ratio is 0.4; grouting shaved cone-shaped distal end of the catheter, the pulp having a drainage hole quincunx seamless steel pipe, diameter 32mm, thickness 3.25mm, 1.8m, the level of elevation of 10 degrees catheter length, circumferential spacing 30cm, the longitudinal spacing of 0.5m, pulp drain aperture 6mm, hole spacing 10cm, grouting pressure 0.4Mpa.

[0075] (2) grouting 1.5h, microbial spray liquid curing method according to the second embodiment.

[0076] (3) 5 days after spraying, top-down manner laid mat reinforced microphone, between the web and the use of the same material as pad Mike reinfor...

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PUM

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Abstract

The invention provides a sandy slope microorganism curing liquid and a sandy slope treatment method, and belongs to the technical field of ecological management. The sandy slope microorganism curing liquid comprises a bacillus pasteurii bacterial liquid, a staphylococcus bacterial liquid, a lactobacillus plantarum bacterial liquid, urea, calcium ions, glucose and water. The sandy slope microorganism curing liquid can be directly sprayed on a sandy slope with a slow gradient, then soil covering and grass planting are conducted, and the effect of reinforcing the slope is achieved; the microorganism curing liquid can be used in combination with a side slope grouting process, and the reinforcing effect on the sandy slope with the steep slope is good; according to the sandy slope treatment method, the stability and durability of the slope can be effectively improved, the situation that the slope is eroded and damaged is prevented, the sandy slope treatment method is easy to operate, short in construction period and low in manufacturing cost, and conforms to the ecological environmental protection concept.

Description

Technical field [0001] The present invention belongs to the technical field ecological management, particularly to a sandy sandy slope and slope microorganism curable liquid treatment methods. Background technique [0002] Sandy cohesive force having a small slope, poor stability, the characteristics susceptible to rain erosion phenomenon landslide. [0003] At present, the commonly used method of treatment sandy slope main brush side-loading, the drainage unwatering, toe backpressure, like reinforcing the slope. Rock mass strength enhancement and reinforcement methods are prestressed anchor (cable) reinforcement, retaining walls and pile, pressure grouting, shotcrete, grout seepage, plant protection. However, the presence of conventional processing techniques sandy slope following problems: (1) Reinforcement sandy slope, since very soft sand, construction difficulties, resulting in pile, into the anchor hole in the reinforcing construction of large difficulty, easy to deviation,...

Claims

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Application Information

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IPC IPC(8): E02D17/20E02D3/12C12N1/20C12R1/07C12R1/44C12R1/25
CPCE02D17/20E02D3/12C12N1/20
Inventor 陈晋龙王宇飞唐志国钟剑辉刘兰兰庄晓天顾久红甘玉香
Owner SUZHOU GOLD MANTIS GREEN LANDSCAPE LIMITED
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