CN113006104A - Soil slope reinforcing method - Google Patents
Soil slope reinforcing method Download PDFInfo
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- CN113006104A CN113006104A CN202110284137.4A CN202110284137A CN113006104A CN 113006104 A CN113006104 A CN 113006104A CN 202110284137 A CN202110284137 A CN 202110284137A CN 113006104 A CN113006104 A CN 113006104A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
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Abstract
A soil slope reinforcement method only uses two parameters of temperature and humidity to research a soil slope, and determines parameters of similar simulation through field actual measurement so as to predict crack development conditions at different temperatures and humidities, namely, reduce the temperature and determine the critical humidity; the method has the advantages that a reinforcing scheme for combining the precast concrete frame and the precast blocks is provided, the reinforcing structure is firm and quick, meanwhile, a water replenishing and grouting integrated pipe is arranged to prevent cracks from being generated and fill the generated cracks, in addition, the arrangement method of the water replenishing and grouting integrated pipe is determined according to the crack direction, and medicine is given according to the symptoms.
Description
Technical Field
The invention belongs to the field of slope construction, and particularly relates to a soil slope reinforcing method.
Background
Soil body side slope crack often is by shallow layer soil body evaporation fracture development gradually under the arid condition, and the surface of shallow layer soil body and inside can develop because of the loss of water has a large amount of drying shrinkage cracks, and these cracks can receive influences such as weather environment influences such as evaporation, rainfall and freeze-thaw further worsen to the weathering of shallow layer soil body is accelerated. Seasonal rainfall is one of the main factors for inducing landslide, and due to the formation of cracks in a shallow soil body, the strength and integrity of the soil body are greatly influenced, and the cracks become rainwater to permeate into main channels, so that the instability of the side slope is induced, and even geological disasters such as collapse, landslide, debris flow and the like are caused. Therefore, a strengthening method is needed to solve the cracking and weathering problems of the soil body slope.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a soil slope reinforcing method, which comprises the following steps: s1, on-site investigation of engineering geological conditions and climatic conditions, and construction of a soil slope test system;
s11, constructing a soil slope test system, wherein the test system comprises a temperature-adjustable thermostatic chamber, a soil slope model arranged in the thermostatic chamber and an image processing system; the image processing system comprises a video camera, a digital camera and a computer, wherein the video camera and the digital camera are used for acquiring images of the soil slope in the experimental process, the computer is used for processing the acquired images to acquire crack data, and the image processing system is further provided with a humidity control system which comprises a hygrometer capable of measuring the humidity of the soil slope and a water replenishing facility for controlling the humidity of the soil slope;
s12, paving a soil slope model; on-site investigation of engineering geological conditions, and accordingly determining parameters such as similarity ratio, soil moisture content, compactness and the like of the slope test model; laying a cubic soil body structure, sealing and standing for a certain time, and removing redundant soil body to form a side slope;
s13, only setting two variables of temperature and humidity, namely performing soil slope crack development tests with different humidity under different temperature conditions; after the temperature is set in the thermostatic chamber, the humidity of the soil body side slope can be adjusted through a water supplementing system, and the critical humidity/humidity range under different temperatures is determined through tests, wherein the critical humidity/humidity range is the humidity which enables the soil body side slope not to generate cracks and basically keeps the original strength; in addition, the soil slope crack development direction is monitored;
preferably, in step S13, the maximum temperature of the thermostatic chamber is the maximum temperature of the site engineering; the lowest humidity is the original humidity of the soil body of the field engineering.
S2, performing a precast concrete block heat insulation test; prefabricating concrete blocks with different thicknesses, performing tests, and measuring temperature values of the prefabricated concrete blocks which can be reduced at different temperatures when the prefabricated concrete blocks are different in thickness; determining the proper thickness of the precast concrete block according to the comprehensive cost, the angle of the side slope and the temperature required to be reduced;
s3, reinforcing the soil body slope on site; as shown in fig. 1-4;
s31, pouring a concrete frame shaped like a Chinese character tian, wherein the concrete frame covers the whole soil slope, the bottom of the concrete frame extends into the soil slope, namely the concrete frame is rooted in the soil slope, the upper part of the concrete frame leaks for a certain thickness, after the concrete frame is cured, a precast concrete block is filled in a port in the concrete frame, the thickness of the precast concrete block is equal to the thickness of the concrete frame, and the length and width of the precast concrete are equal to the length and width of the port in the concrete frame;
s32, when the concrete frame is poured, criss-cross small drainage ditches are reserved right above the concrete frame, the small drainage ditches can accelerate drainage speed, and flow of water flowing through splicing seams between the concrete frame and the precast concrete blocks is reduced;
preferably, the lower part of the precast concrete block is circumferentially provided with a waterproof part to prevent water from entering a soil body slope from a splicing seam of the precast concrete block and the concrete frame; the flashing may be a flashing rubber strip.
Preferably, the top of the splicing joint between the precast concrete block and the concrete frame is filled with cement.
Preferably, the lower part of the outer side surface of the precast concrete block is provided with a splayed water guide groove which is connected with the longitudinal small drainage ditches at the two sides.
S33, arranging a water supplementing and grouting integrated pipe, wherein the water supplementing and grouting integrated pipe is a water pipe with a water outlet hole in the pipe wall, one end of the water supplementing and grouting integrated pipe is closed, and the other end of the water supplementing and grouting integrated pipe is used as a water filling port and is arranged in a soil body side slope at the lower part of the precast concrete block; determining a laying mode of the water replenishing and grouting integrated pipe according to the crack development direction determined in the step S13, and when the crack is basically a transverse crack or a crack close to the transverse crack, arranging the water replenishing and grouting integrated pipe longitudinally; when the crack is basically longitudinal or close to the longitudinal crack, the water replenishing and grouting integrated pipe is arranged along the transverse direction; when the cracks are longitudinally and transversely distributed in a staggered manner, the water replenishing and grouting integrated pipe can be arranged only in the transverse direction or the longitudinal direction, or can be arranged in both the transverse direction and the longitudinal direction; when the inclined cracks are mainly, the water replenishing and grouting integrated pipe can be arranged along the transverse direction and the longitudinal direction, and certainly, the water replenishing and grouting integrated pipe can be only arranged along the transverse direction when the inclined cracks are inclined to the longitudinal direction and only arranged along the longitudinal direction when the inclined cracks are inclined to the transverse direction;
preferably, a one-way water outlet device, such as a one-way valve, is arranged on the water outlet hole.
Preferably, when the prefabricated concrete blocks are transversely arranged, the lower part of each row of the prefabricated concrete blocks is provided with a water replenishing and grouting integrated pipe, and each water replenishing and grouting integrated pipe is arranged close to the transverse concrete frame on the prefabricated concrete block; when the prefabricated concrete blocks are longitudinally arranged, the lower part of each row of the prefabricated concrete blocks is provided with a water replenishing and grouting integrated pipe, and each water replenishing and grouting integrated pipe is positioned right below the middle position of each prefabricated concrete block.
Preferably, the root planting condition of the precast concrete frame is determined according to the crack distribution direction; when the crack is basically a transverse crack or a crack close to the transverse crack, the precast concrete frame only needs to be rooted in the soil slope by the longitudinal frame, and the thickness of other transverse parts is the same as that of the precast concrete block; when the crack is basically longitudinal or close to the longitudinal crack, the precast concrete frame only needs to be rooted in the soil slope by the transverse frame, and the thickness of other longitudinal parts is the same as that of the precast concrete block; when the cracks are longitudinally and transversely distributed in a staggered mode or when the cracks are mainly inclined, the prefabricated concrete frame is only rooted in the soil body side slope through the transverse frame when the water replenishing and grouting integrated pipe is only transversely arranged, and only the longitudinal frame of the prefabricated concrete frame is rooted in the soil body side slope when the water replenishing and grouting integrated pipe is only longitudinally arranged.
S4, after the construction is finished, controlling the humidity of the soil body slope;
s41, adjusting the humidity once at intervals, determining the average temperature T1 in the interval, determining the temperature T2 that the concrete precast block can reduce, and determining the temperature of the soil slope as T1-T2; determining the required increased humidity S to be more than or equal to S2-S1 based on the critical humidity S2 of the soil slope at the temperature T determined in the step S13 and the existing humidity S1 of the soil slope, determining the appropriate water supplement amount based on the required increased humidity, and supplementing water through a water supplement and grouting integrated pipe;
s42, when a large number of cracks are still detected on the side slope of the soil body in a humidity supplementing mode, grouting filling can be carried out through a water supplementing and grouting integrated pipe, low-pressure grouting filling is adopted, and a pipeline is flushed by clean water after filling is finished; when the cracks only appear locally, the precast concrete blocks at the positions can be pulled out for grouting filling, and after the grouting filling is finished, the precast concrete blocks are installed.
Preferably, the outer side of the precast concrete block is provided with a structure convenient for drawing.
Preferably, a water spraying facility is further provided for spraying water to the outer side of the concrete frame and the precast concrete block, and the temperature is further lowered by spraying water when the air temperature is high.
The beneficial technical effects of the invention are as follows: only two parameters of temperature and humidity are used for researching the soil slope, and the parameters of similar simulation are determined through field actual measurement, so that the crack development conditions under different temperatures and humidities are predicted, namely, the temperature is reduced, and the critical humidity is determined; the method has the advantages that a reinforcing scheme for combining the precast concrete frame and the precast blocks is provided, the reinforcing structure is firm and quick, meanwhile, a water replenishing and grouting integrated pipe is arranged to prevent cracks from being generated and fill the generated cracks, in addition, the arrangement method of the water replenishing and grouting integrated pipe is determined according to the crack direction, and medicine is given according to the symptoms.
Drawings
FIG. 1 is a side slope reinforcement structure for a soil body of the present invention;
FIG. 2 shows a soil slope reinforcement structure (with small drainage ditches) according to the present invention;
FIG. 3 shows a soil slope reinforcement structure (with a horizontal water replenishing and grouting integrated pipe) according to the present invention;
FIG. 4 shows a soil slope reinforcement structure (with a longitudinal water-replenishing and grouting integrated pipe) according to the present invention;
in the figure, a concrete frame 1; prefabricating a concrete block 2; a small drainage ditch 3; and a water replenishing and grouting integrated pipe 4.
Detailed Description
A soil slope reinforcing method comprises the following steps: s1, on-site investigation of engineering geological conditions and climatic conditions, and construction of a soil slope test system;
s11, constructing a soil slope test system, wherein the test system comprises a temperature-adjustable thermostatic chamber, a soil slope model arranged in the thermostatic chamber and an image processing system; the image processing system comprises a video camera, a digital camera and a computer, wherein the video camera and the digital camera are used for acquiring images of the soil slope in the experimental process, the computer is used for processing the acquired images to acquire crack data (parameters such as crack size), and the image processing system is further provided with a humidity control system which comprises a hygrometer capable of measuring the humidity of the soil slope and a water replenishing facility capable of controlling the humidity of the soil slope;
s12, paving a soil slope model; on-site investigation of engineering geological conditions, and accordingly determining parameters such as similarity ratio (H height, L length, gradient theta and the like), soil moisture content, compactness and the like of the slope test model; laying a cubic soil body structure, sealing and standing for a certain time, and removing redundant soil body to form a side slope;
s13, only setting two variables of temperature and humidity, namely performing soil slope crack development tests with different humidity under different temperature conditions; after the temperature is set in the thermostatic chamber, the humidity of the soil body side slope can be adjusted through a water supplementing system, and the critical humidity/humidity range under different temperatures is determined through tests, wherein the critical humidity/humidity range is the humidity which enables the soil body side slope not to generate cracks and basically keeps the original strength; in addition, the soil slope crack development direction is monitored;
preferably, in step S13, the maximum temperature of the thermostatic chamber is the maximum temperature of the site engineering; the lowest humidity is the original humidity of the soil body of the field engineering.
S2, carrying out a heat insulation test on the precast concrete block 2; prefabricating concrete blocks with different thicknesses, performing tests, and measuring temperature values of the prefabricated concrete blocks which can be reduced at different temperatures when the prefabricated concrete blocks are different in thickness; determining the proper thickness of the precast concrete block according to the comprehensive cost, the angle of the side slope and the temperature required to be reduced;
s3, reinforcing the soil body slope on site;
s31, pouring the concrete frame 1 shaped like a Chinese character tian, wherein the concrete frame 1 covers the whole soil slope, the bottom of the concrete frame 1 extends into the soil slope, namely, the concrete frame is rooted in the soil slope, the upper part of the concrete frame is exposed to a certain thickness, after the concrete frame 1 is cured, the precast concrete block 2 is filled in the opening in the concrete frame 1, the thickness of the precast concrete block 2 is equal to the exposed thickness of the concrete frame 1, and the length and width of the precast concrete are equal to the length and width of the opening in the concrete frame 1;
s32, when the concrete frame 1 is poured, criss-cross small drainage ditches 3 are reserved right above the concrete frame, the small drainage ditches can accelerate drainage speed, and flow of water flowing through the connecting part/splicing seam between the concrete frame 1 and the precast concrete block 2 is reduced;
preferably, the lower part of the precast concrete block is circumferentially provided with a waterproof part to prevent water from entering a soil body slope from the joint/splicing seam of the precast concrete block and the concrete frame; the flashing may be a flashing rubber strip.
Preferably, the top of the splicing joint between the precast concrete block and the concrete frame is filled with cement.
Preferably, the lower part of the outer side surface of the precast concrete block is provided with a splayed water guide groove which is connected with the longitudinal small drainage ditches at the two sides.
S33, arranging a water replenishing and grouting integrated pipe 4, wherein the water replenishing and grouting integrated pipe 4 is a water pipe with a water outlet hole in the pipe wall, one end of the water replenishing and grouting integrated pipe is closed, and the other end of the water replenishing and grouting integrated pipe is used as a water filling port and is arranged in a soil body side slope at the lower part of the precast concrete block and can penetrate through a concrete frame; determining a laying mode of the water replenishing and grouting integrated pipe according to the crack development direction determined in the step S13, wherein when the crack is basically a transverse crack or a crack close to the transverse crack, the water replenishing and grouting integrated pipe 4 is arranged along the longitudinal direction (figure 3); when there is a substantially longitudinal or near longitudinal split, the refill grouting integrated pipe 4 is arranged in the transverse direction (fig. 4); when the cracks are distributed in a longitudinal and transverse staggered mode, the water replenishing and grouting integrated pipe 4 can be arranged only in the transverse direction or the longitudinal direction (fig. 4), or arranged in the transverse direction and the longitudinal direction; when the inclined crack is mainly formed, the water replenishing and grouting integrated pipe 4 can be arranged along the transverse direction and the longitudinal direction, of course, the water replenishing and grouting integrated pipe 4 can be only arranged along the transverse direction when the inclined crack is deviated from the longitudinal direction (the included angle with the horizontal line/surface is more than 45 degrees), and only arranged along the longitudinal direction when the inclined crack is deviated from the transverse direction (the included angle with the horizontal line/surface is less than 45 degrees);
preferably, a one-way water outlet device, such as a one-way valve, is arranged on the water outlet hole.
Preferably, when the prefabricated concrete blocks are transversely arranged, the lower part of each row of the prefabricated concrete blocks is provided with one water replenishing and grouting integrated pipe 4, and each water replenishing and grouting integrated pipe 4 is arranged close to the transverse concrete frame 1 on the same; when the prefabricated concrete blocks are longitudinally arranged, the lower part of each row of the prefabricated concrete blocks is provided with one water replenishing and grouting integrated pipe 4, and each water replenishing and grouting integrated pipe 4 is positioned right below the middle position of each prefabricated concrete block.
Preferably, the root planting condition of the precast concrete frame is determined according to the crack distribution direction; when the crack is basically a transverse crack or a crack close to the transverse crack, the precast concrete frame only needs to be rooted in the soil slope by the longitudinal frame, and the thickness of other transverse parts is the same as that of the precast concrete block (the thickness of the top and the bottom is the same); when the crack is basically longitudinal or close to the longitudinal crack, the precast concrete frame only needs to be rooted in the soil slope by the transverse frame, and the thickness of other longitudinal parts is the same as that of the precast concrete block; when the cracks are longitudinally and transversely distributed in a staggered mode or when the cracks are mainly inclined, the water replenishing and grouting integrated pipe 4 is only transversely arranged, the prefabricated concrete frame is only rooted in the soil body side slope through the transverse frame, and when the water replenishing and grouting integrated pipe 4 is only longitudinally arranged, the prefabricated concrete frame is only rooted in the soil body side slope through the longitudinal frame.
S4, after the construction is finished, controlling the humidity of the soil body slope;
s41, adjusting the humidity once at intervals, determining the average temperature T1 in the interval, determining the temperature T2 that the concrete precast block can reduce, and determining the temperature of the soil slope as T1-T2; determining that the required increased humidity S is not less than S2-S1 based on the critical humidity S2 of the soil slope at the temperature T determined in the step S13 and the existing humidity S1 of the soil slope, determining the appropriate water supplementing amount based on the required increased humidity, and supplementing water through the water supplementing and grouting integrated pipe 4;
s42, when a large number of cracks are still detected on the side slope of the soil body in a humidity supplementing mode, grouting filling can be carried out through a water supplementing and grouting integrated pipe, low-pressure grouting filling is adopted, and a pipeline is flushed by clean water after filling is finished; when the cracks only appear locally, the precast concrete blocks at the positions can be pulled out for grouting filling, and after the grouting filling is finished, the precast concrete blocks are installed.
Preferably, the outer side of the precast concrete block is provided with a structure convenient for drawing.
Preferably, the upper part of the precast concrete block is provided with a through hole communicated with the outer side and the inner side slope soil body for grouting when a crack occurs locally.
Preferably, a water spraying means is further provided for spraying water to the outside of the concrete frame 1 and the precast concrete block 2, and the temperature is further lowered by spraying water when the temperature is high.
Claims (10)
1. A soil slope reinforcing method comprises the following steps: s1, on-site investigation of engineering geological conditions and climatic conditions, and construction of a soil slope test system;
s11, constructing a soil slope test system, wherein the test system comprises a temperature-adjustable thermostatic chamber, a soil slope model arranged in the thermostatic chamber and an image processing system; the image processing system comprises a video camera, a digital camera and a computer, wherein the video camera and the digital camera are used for acquiring images of the soil slope in the experimental process, the computer is used for processing the acquired images to acquire crack data, and the image processing system is further provided with a humidity control system which comprises a hygrometer capable of measuring the humidity of the soil slope and a water replenishing facility for controlling the humidity of the soil slope;
s12, paving a soil slope model; the engineering geological conditions are investigated on site, and the similarity ratio, the soil moisture content and the compactness of the slope test model are determined according to the engineering geological conditions; laying a cubic soil body structure, sealing and standing for a certain time, and removing redundant soil body to form a side slope;
s13, only setting two variables of temperature and humidity, namely performing soil slope crack development tests with different humidity under different temperature conditions; after the temperature is set in the thermostatic chamber, the humidity of the soil body side slope can be adjusted through a water supplementing system, and the critical humidity/humidity range under different temperatures is determined through tests, wherein the critical humidity/humidity range is the humidity which enables the soil body side slope not to generate cracks and basically keeps the original strength; in addition, the soil slope crack development direction is monitored;
s2, performing a precast concrete block heat insulation test; prefabricating concrete blocks with different thicknesses, performing tests, and measuring temperature values of the prefabricated concrete blocks which can be reduced at different temperatures when the prefabricated concrete blocks are different in thickness; determining the proper thickness of the precast concrete block according to the comprehensive cost, the angle of the side slope and the temperature required to be reduced;
s3, reinforcing the soil body slope on site;
s31, pouring a concrete frame shaped like a Chinese character tian, wherein the concrete frame covers the whole soil slope, the bottom of the concrete frame extends into the soil slope, namely the concrete frame is rooted in the soil slope, the upper part of the concrete frame leaks for a certain thickness, after the concrete frame is cured, a precast concrete block is filled in a port in the concrete frame, the thickness of the precast concrete block is equal to the thickness of the concrete frame, and the length and width of the precast concrete are equal to the length and width of the port in the concrete frame;
s32, when the concrete frame is poured, criss-cross small drainage ditches are reserved right above the concrete frame, the small drainage ditches can accelerate drainage speed, and flow of water flowing through splicing seams between the concrete frame and the precast concrete blocks is reduced;
s33, arranging a water supplementing and grouting integrated pipe, wherein the water supplementing and grouting integrated pipe is a water pipe with a water outlet hole in the pipe wall, one end of the water supplementing and grouting integrated pipe is closed, and the other end of the water supplementing and grouting integrated pipe is used as a water filling port and is arranged in a soil body side slope at the lower part of the precast concrete block; determining a laying mode of the water replenishing and grouting integrated pipe according to the crack development direction determined in the step S13, and when the crack is basically a transverse crack or a crack close to the transverse crack, arranging the water replenishing and grouting integrated pipe longitudinally; when the crack is basically longitudinal or close to the longitudinal crack, the water replenishing and grouting integrated pipe is arranged along the transverse direction; when the cracks are longitudinally and transversely distributed in a staggered manner, the water replenishing and grouting integrated pipe can be arranged only in the transverse direction or the longitudinal direction, or can be arranged in both the transverse direction and the longitudinal direction; when the inclined cracks are mainly, the water replenishing and grouting integrated pipe can be arranged along the transverse direction and the longitudinal direction, and certainly, the water replenishing and grouting integrated pipe can be only arranged along the transverse direction when the inclined cracks are inclined to the longitudinal direction and only arranged along the longitudinal direction when the inclined cracks are inclined to the transverse direction;
s4, after the construction is finished, controlling the humidity of the soil body slope;
s41, adjusting the humidity once at intervals, determining the average temperature T1 in the interval, determining the temperature T2 that the concrete precast block can reduce, and determining the temperature of the soil slope as T1-T2; determining the required increased humidity S to be more than or equal to S2-S1 based on the critical humidity S2 of the soil slope at the temperature T determined in the step S13 and the existing humidity S1 of the soil slope, determining the appropriate water supplement amount based on the required increased humidity, and supplementing water through a water supplement and grouting integrated pipe;
s42, when a large number of cracks are still detected on the side slope of the soil body in a humidity supplementing mode, grouting filling can be carried out through a water supplementing and grouting integrated pipe, low-pressure grouting filling is adopted, and a pipeline is flushed by clean water after filling is finished; when the cracks only appear locally, the precast concrete blocks at the positions can be pulled out for grouting filling, and after the grouting filling is finished, the precast concrete blocks are installed.
2. The method for reinforcing the soil slope according to claim 1, wherein preferably, in step S13, the maximum temperature of the thermostatic chamber is the highest temperature of the site engineering; the lowest humidity is the original humidity of the soil body of the field engineering.
3. The soil slope reinforcement method according to claim 1, wherein a waterproof member is circumferentially arranged at the lower part of the precast concrete block to prevent water from entering the soil slope from the splicing seam of the precast concrete block and the concrete frame; the flashing may be a flashing rubber strip.
4. A method of reinforcing a soil slope according to claim 1, wherein the top of the splice between the precast concrete block and the concrete frame is filled with cement.
5. The method for reinforcing a soil slope according to claim 1, wherein a splayed water chute is arranged at the lower part of the outer side surface of the precast concrete block and is connected with longitudinal small drainage ditches at two sides.
6. A method according to claim 1, wherein the outlet openings are provided with one-way outlet means, such as one-way valves.
7. The method for reinforcing the soil slope according to claim 1, wherein when the precast concrete blocks are transversely arranged, a water replenishing and grouting integrated pipe is arranged at the lower part of each row of precast concrete blocks, and each water replenishing and grouting integrated pipe is arranged close to a transverse concrete frame on the water replenishing and grouting integrated pipe; when the prefabricated concrete blocks are longitudinally arranged, the lower part of each row of the prefabricated concrete blocks is provided with a water replenishing and grouting integrated pipe, and each water replenishing and grouting integrated pipe is positioned right below the middle position of each prefabricated concrete block.
8. The method for reinforcing the soil slope according to claim 1, wherein the condition of the root of the precast concrete frame is determined according to the distribution direction of the cracks; when the crack is basically a transverse crack or a crack close to the transverse crack, the precast concrete frame only needs to be rooted in the soil slope by the longitudinal frame, and the thickness of other transverse parts is the same as that of the precast concrete block; when the crack is basically longitudinal or close to the longitudinal crack, the precast concrete frame only needs to be rooted in the soil slope by the transverse frame, and the thickness of other longitudinal parts is the same as that of the precast concrete block; when the cracks are longitudinally and transversely distributed in a staggered mode or when the cracks are mainly inclined, the prefabricated concrete frame is only rooted in the soil body side slope through the transverse frame when the water replenishing and grouting integrated pipe is only transversely arranged, and only the longitudinal frame of the prefabricated concrete frame is rooted in the soil body side slope when the water replenishing and grouting integrated pipe is only longitudinally arranged.
9. A method for reinforcing a soil slope according to claim 1, wherein the precast concrete block is provided at an outer side thereof with a structure for facilitating extraction.
10. A method of slope reinforcement of a soil mass according to claim 1, wherein water spraying means is further provided for spraying water to the outside of the concrete frame, the precast concrete blocks, and the temperature is further lowered by spraying water when the temperature is high.
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