CN117926652A - Overhead road protection device and construction method thereof - Google Patents

Abstract

The invention discloses an overhead road protection device and a construction method thereof. In the invention, the roadbed protection module is provided with multiple protection modules aiming at the road, uneven terrains are arranged on straight flat slopes or slopes, basic positions are determined, foundation pit excavation or piling construction is carried out, then the foundation is poured, the good positions are selected, and the specific conditions of the roadbed are combined according to the local terrains and natural climates, so that the road is effectively protected; the balance weight retaining wall and the buttress retaining wall arranged in the retaining wall protection module can effectively reduce the occurrence of road engineering accidents. The high side slope protection module is used for protecting the high side slope, so that the anti-toppling capacity of the high side slope is improved, and meanwhile, the drain pipe is installed, so that the method has stronger pollution discharge performance in the use process, and the drainage smoothness in the use process is improved.

Description

Overhead road protection device and construction method thereof

Technical Field

The invention belongs to the technical field of overhead road protection, and particularly relates to an overhead road protection device and a construction method thereof.

Background

The overhead bridge is a bridge crossing deep ditches and canyons to replace high embankments, and a bridge crossing roads in urban bridges is supported by high-support towers or struts, after urban development, traffic is crowded, buildings are dense, streets are difficult to widen, and the traffic density can be evacuated by adopting the bridge, so that the transportation efficiency is improved. In addition, the bridge can be used on expressways or railways among cities without embankments in order to avoid crossing other line planes, save land and reduce roadbed subsidence (certain areas).

Common overhead is in the work progress, does not set up construction safety quality monitoring alarm module for when appearing the problem, can not in time handle it.

Disclosure of Invention

The invention aims at: in order to solve the above-mentioned problems, an overhead road protecting device and a construction method thereof are provided.

The technical scheme adopted by the invention is as follows: an overhead road protecting apparatus and a construction method thereof, the apparatus comprising: the device comprises a roadbed protection module, a retaining wall protection module, a high slope protection module, a quality control module and an anchor rod protection construction module;

the construction method for the overhead road protection comprises the following steps:

S1, a roadbed protection module sorts uneven formations into a straight flat slope or a slope, determines a foundation position, performs foundation pit excavation or piling construction, and then pours a foundation;

S2, firstly, constructing a balance weight retaining wall by adopting c20 piece of stone concrete, wherein the content of piece stones in the piece stone concrete is less than 20%, c30 concrete with the thickness of 60cm above the retaining wall does not contain piece stones, reserving holes according to the embedding condition of handrails, uniformly placing the retaining wall with the long side facing downwards and the small side facing upwards and the distance of 100mm or more, filling the retaining wall with concrete with the distance of 150mm or more from the wall of a template or a groove, and vibrating and tamping;

S3, building a buttress type retaining wall by using the retaining wall protection module, wherein the buttress type retaining wall and the bearing platform are made of c35 reinforced concrete, the retaining wall consists of two parts, a settlement joint is arranged between the two parts, and the width of the settlement joint is 2cm; the joints should be neat, should be penetrated vertically, and should be filled with asphalt twine;

S4, starting construction of the high slope protection module, and installing a template; when the template is cast for the first time, the construction side is considered to choose the template with the height not more than 1.6m at low cost, the thickness of the template is 1.6cm, the transverse back edges of the template are 6cm multiplied by 8cm of battens, and the installation interval of the 6cm thickness surface-mounted template is 10cm;

S5, installing a drain pipe on the high slope protection module; according to the design requirement of the drawing, the lowest discharge of the water drain pipe is 30cm higher than the ground or the normal water level, the interval between the water drain pipe and the water drain pipe is 2m, and the water drain pipe is made of A100mmPVC pipes in a staggered mode; so the holes for installing the drain pipes are reserved at the corresponding positions of the templates before the templates are installed, and the size of the holes is A100mm;

S6, performing sheet stone concrete pouring on the high slope protection module; the content of the lamellar stones in the C25 lamellar stone concrete is not more than 25%, and the lamellar stone with consistent stone quality, uneasy efflorescence, no crack and compressive strength not less than 30MPa is adopted as the lamellar stone of the C25 lamellar stone concrete; c25 concrete is mixed in a concentrated way by a commercial concrete station and is transported to the site through a concrete transport vehicle; the concrete conveying equipment adopts a ground pump for conveying, and the casting order of casting concrete and then casting the rubble is that the rubble is cast firstly by adopting a manual cooperation excavator; the casting speed is controlled within 0.6m/h, casting is carried out from the small pile number to the large pile number side in a layered manner in the casting sequence, and the casting thickness of each layer is not more than 30cm;

S7, carrying out wall maintenance on the high slope protection module, and carrying out back backfilling after the concrete strength of each foundation and wall pouring reaches 75% of the design strength; backfilling the foundation surface below the bottom drainage pipe with undisturbed soil according to the design drawing, backfilling the foundation surface between the wall top and the bottom drainage pipe with bagged natural gravel (the mud content of the natural gravel is less than or equal to 5 percent), wherein the backfilling thickness is 50cm, and backfilling the foundation surface with undisturbed soil when gaps exist between the slope surface and the bagged gravel; in the backfilling process, backfilling layers, wherein the thickness of each layer is 30cm, and compacting by adopting a small-sized hand-held vibratory roller; paving composite geotextile with the width of 50cm on the whole section surface of the bottom of the drain pipe;

s8, the quality control module is provided with a construction detection module which is an important link of the construction process of all building engineering and is required to ensure the effectiveness and scientificity of construction detection work;

S9, an alarm module is arranged in the quality control module, and an audible and visual alarm module, a video alarm module and a telephone alarm module are arranged in the alarm module; the audible and visual alarm module, the video alarm module and the telephone alarm module are all connected with the multiple alarm modules; the telephone alarm module adopts HT9170 and HT9200A as a Dual Tone Multi Frequency (DTMF) signal receiver and a generator to alarm respectively, and when construction environment parameters are abnormal, the sound and light alarm module immediately sounds and the alarm lamp is lightened; the video alarm module sends an alarm signal to the monitoring display screen to meet 24h graphic monitoring alarm, and meanwhile, the position of an alarm area, the environmental conditions around the alarm area, the on-site material storage and on-site responsible person information can be seen on the monitoring display screen; the information can enable people to know the situation of the accident scene in time, eliminate hidden danger in time or guide emergency rescue; the communication alarm module adopts HT9170 and HT9200A as a Dual Tone Multi Frequency (DTMF) signal receiver and a generator respectively, and is provided with a GPRS transmission module which adopts an EM310 module;

S10, drilling holes in a rock stratum by using an MG-50 anchor rod drilling machine, wherein for the rock stratum crushing, soft and saturated water and other types of sites, the anchor rod protection construction module is applied to a pipe-following drilling technology with good effects in the stratum which is easy to collapse, stuck and buried; the anchor rod protection construction module utilizes the C48 steel pipe scaffold rod, establishes an operation platform according to the requirement, and detects the scaffold at the same time to ensure that the scaffold accords with the bearing capacity requirement and the stability condition; the anchor rod and the slope surface are used for fixing the platform, and the drilling machine is lifted to the platform by adopting the triangular bracket; according to the slope surface measuring and positioning hole site, the drilling machine is accurately and fixedly installed, and on the basis of strictly adjusting the machine site, the in-place longitudinal and transverse errors of the anchor rod Kong Kaizuan are controlled within the range of +50mm, and the elevation errors cannot exceed +100deg.C; the inclination angle of the drilling hole must meet the design requirement, the inclination angle error and the azimuth error are allowed to be +1 degrees and +2 degrees respectively, and the included angle between the anchor rod and the horizontal plane is 15 degrees; the level and the stability of the drilling machine are ensured, and the drilling machine is dynamically tracked and monitored in real time during the drilling process;

And S11, the anchor rod protection construction module adopts a dry drilling mode, so that the anchor rod construction can not cause the geological condition deterioration of the slope rock mass, and the whole construction process can be finished after the protection anchor rod is installed.

In a preferred embodiment, in the step S1, besides planting the rhizome plants, the surrounding soil can be reinforced by grass laying to intercept rainwater; relatively, the difficulty of paving the lawn is small, and the operability is strong; during planting, a good management position is selected, and a planting area is scientifically selected according to local topography and natural climate and specific conditions of roadbed, so that the road is effectively protected.

In a preferred embodiment, in said step S2, the permeable tube must be pre-filled before the concrete is poured, in order to prevent the cement slurry from entering the tube; retaining walls should generally be built from masonry in areas 10-15 m long; setting a settlement joint with the width of 2cm at the position where the height of the retaining wall and the foundation characteristics change, and performing waterproof treatment; the filling depth of the material or the asphalt hemp is controlled to be at least 16cm; the internal friction angle of the filler behind the wall is more than or equal to 350, and the design index requirement must be met; only when the strength of the concrete exceeds 70%, the stability of the concrete wall can be ensured.

In a preferred embodiment, in the step S2, before construction, ground drainage measures should be taken to ensure that drainage facilities are installed above and below the slope after the ground and slope drying construction is completed, so as to prevent groundwater from entering; 2.5-9 m of sand cohesive soil with at least inclined soil quality under the counterweight retaining wall; the soil with the weight balance retaining wall foundation of 10-13 m is at least firm sandy weathered rock; if the field geological conditions do not meet the above specifications, timely notifying construction units, design units, supervision and other constructors to carry out negotiation and change; after the construction process of the retaining wall, the necessary dynamic adjustment, supplement and perfect design are carried out on the retaining wall by combining the actual condition of the exposed soil layer of the construction site and other relevant environmental conditions.

In a preferred embodiment, in the step S3, drainage holes are formed at a proper height of the retaining wall, the drainage holes are PVC pipes with a diameter of 6cm, the pipe orifice should protrude from the back of the wall by 10-20 cm, and the gravel pack should be disposed within 50cm from the periphery of the nozzle; the bottom drain pipe should be located the place 30cm above ground, and the excavation width of wall rear portion foundation ditch must set up prevention of seepage geotechnique cloth, after the retaining wall construction is accomplished, combines the actual condition of the naked soil layer of job site and other relevant environmental conditions, carries out necessary dynamic adjustment, supplements and complete design to the retaining wall.

In a preferred embodiment, in step S3, the masonry strength must exceed 70% before filling and tamping to ensure wall stability.

In a preferred embodiment, in the step S4, the formwork is temporarily supported in the installation process, the temporary support is removed after the vertical double-steel-pipe back ridge and the transverse steel pipe are installed, the concrete pouring line is ejected by the ink fountain after the installation of the formwork is completed, the upper-layer formwork support steel bars are pre-buried 20cm below the pouring line, the transverse distance is 50cm, the pre-buried steel bars are C20, and the length is 50cm.

In a preferred embodiment, in the step S5, the water drain pipe is installed after the formwork reinforcement installation is completed, the gradient is 5%, the water inlet and the water outlet are tightly contacted with the formwork by tape winding and sealing before pouring, and the inner part is filled with sand; and taking out the adhesive tape after pouring, drawing out filling sand, and wrapping the inlet of the water drain pipe at the back end of the wall by using permeable geotextile to serve as a back filtering layer.

In a preferred embodiment, in the step S6, professional personnel are arranged to check the template in the pouring process, if the template leaks slurry, runs out of the template and misplacement occurs, the pouring is stopped immediately, the slurry leaking position is plugged, and the running out of the template and misplacement position are pushed by an adjustment jacking mode until the template is restored; in the pouring process, an A50mm inserted vibrator is adopted for vibrating, the vibrating spacing is controlled within the range of 500-600 mm, the lower concrete layer is inserted for 20cm, the vibrating time is controlled at each vibrating point, the vibration leakage and the over vibration are avoided, and the surface is free from bubbles and the mortar is prevented from being flooded out; the drain pipe should be avoided in the vibrating process so as to prevent the drain pipe from losing the drainage function when the concrete is poured into the drain pipe.

In a preferred embodiment, in step S8, in order to continuously improve the construction quality of the building water supply and drainage engineering, a detection mechanism needs to be established and perfected according to actual conditions, so as to enhance detection and management of each link of the construction; firstly, ensuring the reasonability of the water supply and drainage construction sequence, carrying out work strictly according to a construction design drawing, and requiring professional staff to detect the construction links of the construction links so as to ensure the construction specificity; secondly, the detection of pipeline laying and other works is enhanced, and the normal use of all measuring instruments, equipment and the like is ensured; in addition, after the pipe trench acceptance work is completed, acceptance is performed against the specific contents in the construction drawing.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. In the invention, the roadbed protection module is provided with multiple protection modules aiming at the road, uneven terrains are arranged on straight flat slopes or slopes, basic positions are determined, foundation pit excavation or piling construction is carried out, then the foundation is poured, the good positions are selected, and the specific conditions of the roadbed are combined according to the local terrains and natural climates, so that the road is effectively protected; the balance weight retaining wall and the buttress retaining wall arranged in the retaining wall protection module can effectively reduce the occurrence of road engineering accidents. Therefore, during the construction of the roadbed retaining wall, the principle of environmental protection must be complied with, and all links of the construction of the retaining wall are comprehensively and effectively monitored and controlled, so that the quality of the roadbed retaining wall meets the requirements; the high side slope protection module is used for protecting the high side slope, so that the anti-toppling capacity of the high side slope is improved, and meanwhile, the drain pipe is installed, so that the method has stronger pollution discharge performance in the use process, and the drainage smoothness in the use process is improved.

2. According to the invention, the quality of the whole construction process is controlled by the quality control module, so that the safety problem in the construction of water supply and drainage engineering can be found and processed in time, the safety and stability of a construction site are improved, the quality of all construction materials can meet relevant standards and requirements, the quality control work is comprehensively put in place, the key points and weak points in the water supply and drainage construction are well mastered, the construction quality is enhanced, and meanwhile, the alarm module is arranged in the quality control module, so that people can know the situation of the accident site in time, and hidden danger is eliminated or emergency rescue is guided in time.

Drawings

FIG. 1 is a block diagram of a system of devices of the present invention;

FIG. 2 is a block diagram of a retaining wall protection module system according to the present invention;

FIG. 3 is a block diagram of a high slope protection module system according to the present invention.

The marks in the figure: 1-roadbed protection module, 2-retaining wall protection module, 3-high slope protection module, 4-quality control module and 5-stock protection construction module.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

With reference to figures 1-3 of the drawings,

An overhead road protecting device and a construction method thereof, comprising the overhead road protecting device comprising: the device comprises a roadbed protection module 1, a retaining wall protection module 2, a high slope protection module 3, a quality control module 4 and an anchor rod protection construction module 5;

The construction method for the overhead road protection comprises the following steps:

S1, a roadbed protection module 1 is used for arranging uneven formations into a straight flat slope or a slope, determining a foundation position, performing foundation pit excavation or piling construction, and then pouring a foundation;

S2, firstly, constructing a balance weight retaining wall by adopting c20 piece of stone concrete, wherein the content of piece stone in the piece of stone concrete is less than 20%, c30 concrete with the thickness of 60cm above the retaining wall does not contain piece stone, reserving holes according to the embedding condition of handrails, uniformly placing the retaining wall with the long side facing downwards and the small side facing upwards and the distance being more than or equal to 100mm, filling concrete in the retaining wall with the distance being more than or equal to 150mm from the wall of a template or a groove, and vibrating and tamping;

S3, building a buttress type retaining wall by the retaining wall protection module 2, wherein the buttress type retaining wall and the bearing platform are made of c35 reinforced concrete, the retaining wall consists of two parts, a settlement joint is arranged between the two parts, and the width of the settlement joint is 2cm; the joints should be neat, should be penetrated vertically, and should be filled with asphalt twine;

s4, starting construction of the high slope protection module 3, and installing a template; when the template is cast for the first time, the construction side is considered to choose the template with the height not more than 1.6m at low cost, the thickness of the template is 1.6cm, the transverse back edges of the template are 6cm multiplied by 8cm of battens, and the installation interval of the 6cm thickness surface-mounted template is 10cm;

s5, installing a drain pipe on the high slope protection module 3; according to the design requirement of the drawing, the lowest discharge of the water drain pipe is 30cm higher than the ground or the normal water level, the interval between the water drain pipe and the water drain pipe is 2m, and the water drain pipe is made of A100mmPVC pipes in a staggered mode; so the holes for installing the drain pipes are reserved at the corresponding positions of the templates before the templates are installed, and the size of the holes is A100mm;

s6, performing sheet stone concrete pouring on the high slope protection module 3; the content of the lamellar stones in the C25 lamellar stone concrete is not more than 25%, and the lamellar stone with consistent stone quality, uneasy efflorescence, no crack and compressive strength not less than 30MPa is adopted as the lamellar stone of the C25 lamellar stone concrete; c25 concrete is mixed in a concentrated way by a commercial concrete station and is transported to the site through a concrete transport vehicle; the concrete conveying equipment adopts a ground pump for conveying, and the casting order of casting concrete and then casting the rubble is that the rubble is cast firstly by adopting a manual cooperation excavator; the casting speed is controlled within 0.6m/h, casting is carried out from the small pile number to the large pile number side in a layered manner in the casting sequence, and the casting thickness of each layer is not more than 30cm;

S7, carrying out wall maintenance on the high slope protection module 3, and carrying out back backfilling after the concrete strength of each foundation and wall pouring reaches 75% of the design strength; backfilling the foundation surface below the bottom drainage pipe with undisturbed soil according to the design drawing, backfilling the foundation surface between the wall top and the bottom drainage pipe with bagged natural gravel (the mud content of the natural gravel is less than or equal to 5 percent), wherein the backfilling thickness is 50cm, and backfilling the foundation surface with undisturbed soil when gaps exist between the slope surface and the bagged gravel; in the backfilling process, backfilling layers, wherein the thickness of each layer is 30cm, and compacting by adopting a small-sized hand-held vibratory roller; paving composite geotextile with the width of 50cm on the whole section surface of the bottom of the drain pipe;

s8, a quality control module 4 is provided with a construction detection module, wherein the construction detection module is an important link of the construction process of all building projects, and the effectiveness and scientificity of construction detection work are required to be ensured;

s9, an alarm module is arranged in the quality control module 4, and an audible and visual alarm module, a video alarm module and a telephone alarm module are arranged in the alarm module; the sound-light alarm module, the video alarm module and the telephone alarm module are all connected with the multiple alarm modules; the telephone alarm module adopts HT9170 and HT9200A as a Dual Tone Multi Frequency (DTMF) signal receiver and a generator to alarm, when the construction environment parameters are abnormal, the sound and light alarm module immediately sounds and the alarm lamp is lightened; the video alarm module sends an alarm signal to the monitoring display screen to meet 24h graphic monitoring alarm, and meanwhile, the position of an alarm area, the environmental conditions around the alarm area, the on-site material storage and on-site responsible person information can be seen on the monitoring display screen; the information can enable people to know the situation of the accident scene in time, eliminate hidden danger in time or guide emergency rescue; the communication alarm module 9 adopts HT9170 and HT9200A as a Dual Tone Multi Frequency (DTMF) signal receiver and a generator respectively, and is provided with a GPRS transmission module which adopts an EM310 module;

S10, drilling holes in a rock stratum by using an MG-50 anchor rod drilling machine, wherein the anchor rod protection construction module 5 is used for a field with the rock stratum being broken, soft and saturated with water and the like, and a pipe-following drilling technology with good effect in the stratum being easy to collapse, stuck and buried is used; the anchor rod protection construction module 5 establishes an operation platform according to the requirement by utilizing the C48 steel pipe scaffold rod, and detects the scaffold at the same time to ensure that the scaffold accords with the bearing capacity requirement and the stability condition; the anchor rod and the slope surface are used for fixing the platform, and the drilling machine is lifted to the platform by adopting the triangular bracket; according to the slope surface measuring and positioning hole site, the drilling machine is accurately and fixedly installed, and on the basis of strictly adjusting the machine site, the in-place longitudinal and transverse errors of the anchor rod Kong Kaizuan are controlled within the range of +50mm, and the elevation errors cannot exceed +100deg.C; the inclination angle of the drilling hole must meet the design requirement, the inclination angle error and the azimuth error are allowed to be +1 degrees and +2 degrees respectively, and the included angle between the anchor rod and the horizontal plane is 15 degrees; the level and the stability of the drilling machine are ensured, and the drilling machine is dynamically tracked and monitored in real time during the drilling process;

And S11, the anchor rod protection construction module 5 adopts a dry drilling mode, so that the anchor rod construction can not cause the geological condition deterioration of the slope rock mass, and the whole construction process can be finished after the protection anchor rod is installed.

In the step S1, besides planting rhizome plants, surrounding soil can be reinforced by grass paving to intercept rainwater; relatively, the difficulty of paving the lawn is small, and the operability is strong; during planting, a good management position is selected, and a planting area is scientifically selected according to local topography and natural climate and specific conditions of roadbed, so that the road is effectively protected.

In step S2, the permeable tube must be pre-filled before the concrete is poured to prevent cement slurry from entering the tube; the retaining wall is usually built by bricks and stones in an area with the length of 10-15 m, and the retaining wall can be determined according to the excavation conditions on site; setting a settlement joint with the width of 2cm at the position where the height of the retaining wall and the foundation characteristics change, and performing waterproof treatment; the filling depth of the material or the asphalt hemp is controlled to be at least 16cm; the internal friction angle of the wall rear filler stacking material is more than or equal to 350, and the design index requirement must be met; only when the strength of the concrete exceeds 70%, the stability of the concrete wall can be ensured.

In the step S2, before construction, ground drainage measures are adopted to ensure that drainage facilities are arranged above and below the slope after the ground and slope are dried, so as to prevent groundwater from entering; 2.5-9 m of sand cohesive soil with at least inclined soil quality under the counterweight retaining wall; the soil with the weight balance retaining wall foundation of 10-13 m is at least firm sandy weathered rock; if the field geological conditions do not meet the above specifications, timely notifying construction units, design units, supervision and other constructors to carry out negotiation and change; after the construction process of the retaining wall, the necessary dynamic adjustment, supplement and perfect design are carried out on the retaining wall by combining the actual condition of the exposed soil layer of the construction site and other relevant environmental conditions.

In the step S3, drain holes are arranged at proper height of the retaining wall, the drain holes use PVC pipes with the diameter of 6cm, the pipe orifice extends from the back of the wall for 10-20 cm, and the gravel filter layer is arranged within 50cm from the periphery of the nozzle; the bottom drain pipe should be located the place 30cm above ground, and the excavation width of wall rear portion foundation ditch must set up prevention of seepage geotechnique cloth, after the retaining wall construction is accomplished, combines the actual condition of the naked soil layer of job site and other relevant environmental conditions, carries out necessary dynamic adjustment, supplements and complete design to the retaining wall.

In step S3, the masonry strength must exceed 70% before filling and tamping to ensure wall stability.

In the step S4, the template is temporarily supported in the installation process, the temporary support is removed after the vertical double-steel-pipe back edge and the transverse steel pipe are installed, a concrete pouring line is popped up by an ink fountain after the template is installed, the upper-layer template supporting steel bars are required to be pre-buried 20cm below the pouring line, the transverse distance is 50cm, the pre-buried steel bars are C20, and the length is 50cm.

In the step S5, after the template reinforcement and installation are completed, the water drain pipe is installed, the gradient is 5%, the water inlet and the water outlet are tightly contacted with the template by winding and sealing with an adhesive tape before pouring, and the inner part is filled with sand; and taking out the adhesive tape after pouring, drawing out filling sand, and wrapping the inlet of the water drain pipe at the back end of the wall by using permeable geotextile to serve as a back filtering layer.

In the step S6, arranging a full-time personnel to check the template in the pouring process, immediately stopping pouring if the template leaks slurry, runs the template and misplaces, plugging the slurry leaking position, and pushing the running template and misplaced position in an adjustment jacking mode until the template is restored; in the pouring process, an A50mm inserted vibrator is adopted for vibrating, the vibrating spacing is controlled within the range of 500-600 mm, the lower concrete layer is inserted for 20cm, the vibrating time is controlled at each vibrating point, the vibration leakage and the over vibration are avoided, and the surface is free from bubbles and the mortar is prevented from being flooded out; the drain pipe should be avoided in the vibrating process so as to prevent the drain pipe from being filled with concrete and losing the drainage function

In step S8, in order to continuously improve the construction quality of the house building water supply and drainage engineering, a detection mechanism needs to be established and perfected according to actual conditions, and detection and management of each link of construction are enhanced; firstly, ensuring the reasonability of the water supply and drainage construction sequence, carrying out work strictly according to a construction design drawing, and requiring professional staff to detect the construction links of the construction links so as to ensure the construction specificity; secondly, the detection of pipeline laying and other works is enhanced, and the normal use of all measuring instruments, equipment and the like is ensured; in addition, after the pipe trench acceptance work is completed, acceptance is performed against the specific contents in the construction drawing.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An overhead road protection device and a construction method thereof are characterized in that: the including overhead road guard includes: the device comprises a roadbed protection module (1), a retaining wall protection module (2), a high slope protection module (3), a quality control module (4) and an anchor rod protection construction module (5);

the construction method for the overhead road protection comprises the following steps:

S1, a roadbed protection module (1) is used for arranging uneven formations into a straight flat slope or a slope, determining a foundation position, performing foundation pit excavation or piling construction, and then pouring a foundation;

s2, firstly, constructing a balance weight retaining wall by using a retaining wall protection module (2), wherein c20 pieces of stone concrete are adopted for the balance weight retaining wall, the content of stones in the stone concrete is less than 20%, and the stone concrete is filled with the stone concrete and is vibrated and tamped;

S3, building a buttress type retaining wall by the retaining wall protection module (2), wherein the buttress type retaining wall and the bearing platform are made of c35 reinforced concrete, the retaining wall consists of two parts, a settlement joint is arranged between the two parts, and the width of the settlement joint is 2cm; the joints should be neat, should be penetrated vertically, and should be filled with asphalt twine;

S4, starting construction of the high slope protection module (3), and installing a template; when the template is cast for the first time, the construction side is considered to choose the template with the height not more than 1.6m at low cost, the thickness of the template is 1.6cm, the transverse back edges of the template are 6cm multiplied by 8cm of battens, and the installation interval of the 6cm thickness surface-mounted template is 10cm;

s5, installing a drain pipe on the high slope protection module (3); according to the design requirement of the drawing, the lowest discharge of the water drain pipe is 30cm higher than the ground or the normal water level, the interval between the water drain pipe and the water drain pipe is 2m, and the water drain pipe is made of A100mmPVC pipes in a staggered mode; so the holes for installing the drain pipes are reserved at the corresponding positions of the templates before the templates are installed, and the size of the holes is A100mm;

s6, performing sheet stone concrete pouring on the high slope protection module (3); the content of the lamellar stones in the C25 lamellar stone concrete is not more than 25%;

s7, carrying out wall maintenance on the high slope protection module (3), and carrying out back backfilling after the concrete strength of each foundation and wall pouring reaches 75% of the design strength;

S8, a quality control module (4) is provided with a construction detection module, wherein the construction detection module is an important link of all construction processes of building engineering, and the effectiveness and scientificity of construction detection work are required to be ensured;

S9, an alarm module is arranged in the quality control module (4), and an audible and visual alarm module, a video alarm module and a telephone alarm module are arranged in the alarm module;

S10, drilling holes in a stratum by using an MG-50 jumbolter, wherein the jumbolter protection construction module (5) is used for a stratum crushing field, a soft water saturation field and other fields, and a pipe-following drilling technology with good effects in the stratum which is easy to collapse, stuck and buried is used for the jumbolter protection construction module (5);

and S11, the anchor rod protection construction module (5) adopts a dry drilling mode, so that the anchor rod construction can not cause the geological condition deterioration of the slope rock mass, and the whole construction process can be finished after the protection anchor rod is installed.

2. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in the step S1, the roadbed protection module selects a good-management position, and scientifically selects a casting area according to local topography and natural climate and specific conditions of the roadbed, so that the road is effectively protected.

3. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in said step S2, the permeable tube must be pre-filled before the concrete is poured, in order to prevent the cement slurry from entering the tube.

4. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in the step S2, before construction, a ground drainage measure should be adopted to ensure that after the ground and slope are dried, drainage facilities are installed above and below the slope to prevent groundwater from entering.

5. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in the step S3, drain holes are formed at proper heights of the retaining wall, the drain holes are PVC pipes with the diameter of 6cm, the pipe orifice extends from the back of the wall by 10-20 cm, and the gravel filter layer is arranged within 50cm from the periphery of the nozzle.

6. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in said step S3, the masonry strength must exceed 70% before filling and tamping to ensure the stability of the wall.

7. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in the step S4, the template is temporarily supported in the installation process, the temporary support is removed after the vertical double-steel-pipe back edge and the transverse steel pipe are installed, a concrete pouring line is popped up by an ink fountain after the template is installed, the upper-layer template supporting steel bars are required to be pre-buried 20cm below the pouring line, the transverse distance is 50cm, and the pre-buried steel bars are C20 and 50cm in length.

8. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in the step S5, after the template is reinforced and installed, the water drain pipe is installed again, the gradient is 5%, the water inlet and the water outlet are tightly contacted with the template by winding and sealing the adhesive tape before pouring, and the inner part is filled with sand.

9. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in the step S6, an A50mm inserted vibrator is adopted for vibrating in the pouring process, the vibrating distance is controlled within the range of 500-600 mm, the lower layer concrete is inserted for 20cm, the vibrating time is controlled at each vibrating point, the vibration leakage and the vibration exceeding are avoided, and the surface is free from air bubbles and mortar spreading.

10. The overhead road protecting device and the construction method thereof according to claim 1, wherein: in step S8, in order to continuously improve the construction quality of the building construction water supply and drainage engineering, a detection mechanism needs to be established and perfected according to actual conditions, so as to enhance detection and management of each link of construction.