CN212742593U

CN212742593U - Supplementary microwave device that contains mud intermediate layer slope slip casting and consolidate

Info

Publication number: CN212742593U
Application number: CN202022134291.7U
Authority: CN
Inventors: 胡启军; 杜昕阳; 何乐平
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-03-19
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to a microwave device for assisting the grouting reinforcement of a muddy interlayer slope in the technical field of slope engineering, which comprises microwave irradiation equipment and grouting equipment, and is characterized in that the microwave irradiation equipment comprises a microwave generating device, a horizontal waveguide tube, a waveguide converter and a vertical waveguide tube; the grouting equipment comprises a grouting pump, a high-pressure rubber tube, a grouting pipe and grouting liquid; and the vertical waveguide tube and the grouting tube extend into the pre-constructed drill hole to reinforce the side slope. The utility model discloses a method that microwave irradiation and slip casting reinforcement combined together through the red layer argillization intermediate layer around using microwave rapid heating drilling in advance, improves its mechanical properties, has increased the interbedded porosity of argillization for follow-up slip casting is controllable more easily, has improved the efficiency that the side slope was consolidated in the slip casting widely, and environmental protection more.

Description

Supplementary microwave device that contains mud intermediate layer slope slip casting and consolidate

Technical Field

The utility model belongs to the technical field of the side slope engineering, concretely relates to supplementary microwave device that contains mud intermediate layer side slope slip casting and consolidate.

Background

With the implementation of strategies such as the proposal of one-way initiative in China, the new and big development in western China and the like, the infrastructure construction in China is going on fiercely, and the construction of roads and railways is bound to face a great deal of slope stability problems because of the numerous mountain areas in China as key development areas. The argillization interlayer is used as a common weak structural plane in rock mass, has the engineering characteristics of expansibility, high clay content, easy disintegration in water and the like, and is easy to soften under the action of factors such as rainfall, earthquake, external disturbance and the like, so that the side slope is unstable. Therefore, how to reinforce the side slope of the muddy interlayer is a problem which needs to be solved in the process of constructing and operating the foundation.

At present, the common slope reinforcement method can be divided into retaining structures, drainage and drainage, slope cutting and load reduction, soil body modification and the like. The soil body modification mainly comprises two types of grouting reinforcement and roasting reinforcement, however, the grouting reinforcement still has the defects that grout is difficult to inject, the reinforcement range is difficult to determine, the reinforcement effect is difficult to evaluate and the like, and the injection of the grout can temporarily reduce the strength of the argillization interlayer and increase the risk of landslide as the argillization interlayer is used as a water-sensitive material. The roasting method is rarely applied in practical engineering due to the defects of high energy consumption, large pollution, low efficiency and the like. In recent years, microwave is widely applied to the field of soil heat treatment as a novel heating technology, the microwave heating has the characteristics of high heating speed, strong penetrating power, small heat loss, timely control and the like, and meanwhile, the high water content of the argillization interlayer also provides a material basis for the microwave heating. The mechanical property and porosity of the argillized interlayer can be improved by heating the argillized interlayer by microwave, and the subsequent grouting reinforcement is facilitated.

Disclosure of Invention

An object of the utility model is to above not enough, provide one kind can improve the supplementary microwave device that contains the reinforced (rfd) of mud-chemical intermediate layer side slope slip casting of slip casting reinforcing efficiency, reinforcing effect by a wide margin.

The utility model discloses a realize like this:

a microwave device for assisting grouting reinforcement of a muddy interlayer slope comprises microwave irradiation equipment and grouting equipment, and is characterized in that the microwave irradiation equipment comprises a microwave generating device, a horizontal waveguide tube, a waveguide converter and a vertical waveguide tube; the grouting equipment comprises a grouting pump, a high-pressure rubber tube, a grouting pipe and grouting liquid; the vertical waveguide tube and the grouting tube extend into a pre-constructed drill hole and heat the mud interlayer at the periphery through microwaves so as to improve the mechanical property and porosity of the vertical waveguide tube and the grouting tube, and the subsequent grouting reinforcement is facilitated.

The further setting is that:

the depth of the drill hole is 0.5-1.0 m through the red layer argillization interlayer and into the next soil layer; the arrangement form of the drilling holes can adopt a rectangular shape, a quincunx shape or a rectangular shape; the hole diameter and the hole distance of the drill holes are determined according to geological conditions, the depth of the drill holes and a grouting process.

The microwave irradiation equipment comprises a microwave generating device and a waveguide tube; the microwave generating device mainly comprises a power supply, a power control system, a magnetron, a cooling water circulating device and a circulator; the magnetron is connected with the circulator, direct current electric energy is converted into microwave energy, stable microwave power is provided in a continuous wave mode, the microwave frequency is 2.45GHz, the power can be adjusted by a power control system, and the power range is 1-30 kW; the cooling water circulation device cools the magnetron to ensure the normal operation of the microwave generating device; the circulator is connected with the horizontal waveguide tube to control the direction of microwave energy; the horizontal waveguide tube may be circular or rectangular and is connected to the vertical waveguide tube by a waveguide converter.

The grouting pipe is a metal pipe and is provided with grouting holes spirally arranged, the top end of the grouting pipe is sealed by using water glass after the grouting pipe is inserted into the drilled hole to prevent slurry from flowing out, and the pulling height is preferably 0.5m each time; the outside of the grouting pipe is connected with a high-pressure rubber pipe; the high-pressure rubber pipe is communicated with the grouting pump.

The grouting pump outlet should be equipped with the pressure gauge, the problem that probably appears in the monitoring grouting process of being convenient for, and its working pressure should be between 1/4 ~ 3/4 of the biggest nominal value of pressure gauge.

The high-pressure rubber pipe and the grouting pipe are used for enabling grouting liquid to flow smoothly and can bear at least twice of designed grouting pressure, and the grouting pressure is determined according to a grouting test.

Compared with the prior art, the utility model has the advantages that:

the utility model pre-heats the red layer argillization interlayer in the side slope by microwave radiation and then carries out grouting reinforcement, and the combination mode is simple and has wide practicability; compared with the traditional heating, the microwave heating is more uniform, high in efficiency and more environment-friendly; the red layer argillization interlayer heated by the microwave is densified, the porosity is increased, the water stability is enhanced, the range of subsequent grouting reinforcement is easier to control, the efficiency of grouting reinforcement is improved, the reinforcement effect of the side slope is enhanced, the project progress is accelerated, and the cost is saved.

Drawings

FIG. 1 is a schematic view of a microwave apparatus for assisting grouting reinforcement of a muddy interlayer slope;

FIG. 2 is a schematic view of a microwave generating apparatus;

in the figure: 1-red layer argillization interlayer, 2-drilling, 3-microwave generation device, 3.1-power supply, 3.2-power control system, 3.3-magnetron, 3.4-cooling circulation device, 3.5-circulator, 4-horizontal waveguide tube, 5-waveguide converter, 6-vertical waveguide tube, 7-exhaust pipe, 8-grouting pump, 9-high pressure rubber tube, 10-pressure measuring meter, 11-grouting pipe, 12-grouting hole; 13-sealing layer.

Detailed Description

As shown in fig. 1, the utility model discloses an it is supplementary to contain reinforced (rfd) microwave device of mud layer intermediate layer slope slip casting, including red layer mud layer intermediate layer 1, drilling 2, microwave generating device 3, horizontal waveguide pipe 4, waveguide converter 5, vertical waveguide pipe 6, blast pipe 7, grouting pump 8, high-pressure rubber tube 9, pressure-measuring meter 10, slip casting pipe 11, grouting hole 12, seal layer 13.

The invention is further described with reference to the accompanying drawings:

the microwave device for assisting the grouting reinforcement of the muddy interlayer slope comprises microwave irradiation equipment and grouting equipment, and is characterized in that the microwave irradiation equipment comprises a microwave generating device 3, a horizontal waveguide tube 4, a waveguide converter 5 and a vertical waveguide tube 6; the grouting equipment comprises a grouting pump 8, a high-pressure rubber tube 9 and a grouting tube 11; the vertical waveguide tube 6 and the grouting tube 11 extend into the pre-constructed drill hole 2 and heat the mud interlayer 1 at the periphery through microwaves so as to improve the mechanical property and porosity of the vertical waveguide tube and facilitate subsequent grouting reinforcement.

The depth of the drilling hole 2 is 0.5-1.0 m through the red layer argillization interlayer 1 and into the next soil layer; the arrangement form of the drilling holes can adopt a rectangular shape, a quincunx shape or a rectangular shape; the hole diameter and the hole distance of the drill holes are determined according to geological conditions, the depth of the drill holes and a grouting process.

The microwave irradiation equipment comprises a microwave generating device 3 and a waveguide tube; the microwave generating device 3 mainly comprises a power supply 3.1, a power control system 3.2, a magnetron 3.3, a cooling water circulating device 3.4 and a circulator 3.5; the magnetron 3.3 is connected with the circulator 3.5, converts direct current electric energy into microwave energy, provides stable microwave power in a continuous wave mode, has the microwave frequency of 2.45GHz, can be regulated by a power control system 3.2, and has the power range of 1-30 kW; the cooling water circulation device 3.4 protects the magnetron 3.5 and ensures the normal operation of the microwave generating device 3; the circulator 3.5 is connected with the horizontal waveguide 4 to control the direction of microwave energy; the horizontal waveguide 4 may be circular or rectangular and is connected to the vertical waveguide 6 by a waveguide converter 5.

The grouting pipe 11 is a metal pipe and is provided with grouting holes 12 which are spirally arranged, the top end of the grouting pipe is sealed by using water glass after the grouting pipe is inserted into the drilling hole 2 to prevent slurry from flowing out, and the pulling height is preferably 0.5m each time; the outside of the grouting pipe 11 is connected with a high-pressure rubber pipe 9; and the high-pressure rubber pipe 9 is communicated with the grouting pump 8.

A pressure measuring meter 10 is arranged at the outlet of the grouting pump 8, so that the problems possibly occurring in the grouting process can be conveniently monitored, and the use pressure of the pressure measuring meter 10 is 1/4-3/4 of the maximum nominal value.

The high-pressure rubber pipe 9 and the grouting pipe 11 are used for enabling grouting liquid to flow smoothly and can bear at least twice of designed grouting pressure, and the grouting pressure is determined according to a grouting test.

The utility model discloses a supplementary microwave device implementation method that contains mud intermediate layer slope slip casting and consolidate, including following step:

the method comprises the following steps of firstly, comprehensively considering the geological condition of the side slope, the actual engineering, the construction period, the cost and the like according to the specifications and engineering experience, and determining the grouting reinforcement range and thickness of the side slope;

step two, pre-drilling construction is carried out, and because the red layer argillization interlayer is easy to soften argillization after meeting water, the hole wall collapses and other phenomena are caused, so that dry drilling is adopted to reduce drilling disturbance;

step three, simultaneously feeding the vertical waveguide tube 6 and the grouting tube 11 into the drilled hole 2 after construction is completed, wherein the distance between the two tubes and the bottom surface of the drilled hole is 10-50 cm, and ensuring that certain pressure is kept during subsequent grouting;

step four, reserving an exhaust pipe 7 at the orifice, communicating the inside and the outside, then mixing water glass and pure cement slurry, and pouring the mixture into the orifice to form a sealing layer 13;

step five, after the sealing layer 13 is finally set, the microwave generating device 3 is started to heat the red layer argillization interlayer 1 around the drill hole through the vertical waveguide tube 6, so that the mechanical property and porosity of the red layer argillization interlayer are improved, and subsequent grouting is facilitated;

and step six, opening a grouting pump 8, grouting the proportioned grouting liquid into the drill hole 2 through a high-pressure rubber pipe 9 and a grouting pipe 11, pulling out the grouting pipe 11 after the grouting is finished, solidifying the grouting liquid and the side slope soil body, grouting the next drill hole after the grouting liquid reaches the design standard, and repeating the steps.

The utility model discloses a supplementary microwave device that contains mud ization intermediate layer slope slip casting and consolidate has adopted the method that microwave irradiation and slip casting reinforcement combined together. The red layer argillization interlayer around the drill hole is quickly heated by using microwaves in advance, so that the mechanical property of the red layer argillization interlayer is improved, the porosity of the argillization interlayer is increased, the subsequent grouting is easier to control, the efficiency of grouting for reinforcing the side slope is greatly improved, and the red layer argillization interlayer is more environment-friendly. The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features.

Claims

1. A microwave device for assisting grouting reinforcement of a muddy interlayer slope comprises microwave irradiation equipment and grouting equipment, and is characterized in that the microwave irradiation equipment comprises a microwave generating device, a horizontal waveguide tube, a waveguide converter and a vertical waveguide tube; the grouting equipment comprises a grouting pump, a high-pressure rubber tube, a grouting pipe and grouting liquid; the vertical waveguide tube and the grouting tube extend into a pre-constructed drill hole and heat the mud interlayer at the periphery through microwaves so as to improve the mechanical property and porosity of the vertical waveguide tube and the grouting tube, and the subsequent grouting reinforcement is facilitated.

2. The microwave device for assisting the grouting reinforcement of the side slope with the argillized interlayer according to claim 1, wherein the drilling depth is 0.5-1.0 m through the argillized interlayer of the red layer and into the next soil layer; the arrangement form of the drilling holes can adopt a rectangular shape, a quincunx shape or a rectangular shape; the hole diameter and the hole distance of the drill holes are determined according to geological conditions, the depth of the drill holes and a grouting process.

3. The microwave device for assisting the grouting reinforcement of the mud-containing interlayer slope according to claim 1, wherein the microwave irradiation equipment comprises a microwave generating device and a waveguide tube; the microwave generating device mainly comprises a power supply, a power control system, a magnetron, a cooling water circulating device and a circulator; the magnetron is connected with the circulator, direct current electric energy is converted into microwave energy, stable microwave power is provided in a continuous wave mode, the microwave frequency is 2.45GHz, the power can be adjusted by a power control system, and the power range is 1-30 kW; the cooling water circulation device cools the magnetron to ensure the normal operation of the microwave generating device; the circulator is connected with the horizontal waveguide tube to control the direction of microwave energy; the horizontal waveguide tube may be circular or rectangular and is connected to the vertical waveguide tube by a waveguide converter.

4. The microwave device for assisting the grouting reinforcement of the muddy interlayer slope according to claim 1, wherein the grouting pipe is a metal pipe and is provided with grouting holes spirally arranged, the top end of the grouting pipe is sealed by using water glass after the grouting pipe is inserted into the drilled hole so as to prevent slurry from overflowing, and the uplift height is preferably 0.5m each time; the outside of the grouting pipe is connected with a high-pressure rubber pipe; the high-pressure rubber pipe is communicated with the grouting pump.

5. The microwave device for assisting the grouting reinforcement of the muddy interlayer slope according to the claim 1, wherein a pressure gauge is arranged at the outlet of a grouting pump so as to monitor the possible problems in the grouting process, and the use pressure of the microwave device is 1/4-3/4 of the maximum nominal value of the pressure gauge.

6. The microwave device for assisting the grouting reinforcement of the muddy interlayer slope according to the claim 1, wherein the high-pressure rubber pipe and the grouting pipe are used for ensuring the smooth flowing of grouting liquid and can bear at least twice of the designed grouting pressure, and the grouting pressure is determined according to the grouting test.