CN107059893B - Mining face high slope hole greening construction method - Google Patents
Mining face high slope hole greening construction method Download PDFInfo
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- CN107059893B CN107059893B CN201710301192.3A CN201710301192A CN107059893B CN 107059893 B CN107059893 B CN 107059893B CN 201710301192 A CN201710301192 A CN 201710301192A CN 107059893 B CN107059893 B CN 107059893B
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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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
- E02D17/202—Securing of slopes or inclines with flexible securing means
Abstract
The invention belongs to the technical field of construction, and particularly relates to a construction method for greening hole holes of a high slope of a mining surface. The method comprises the following specific steps: 1) dangerous rocks are cleared from a slope body to eliminate the hidden danger of later construction; 2) constructing an anchor rod of the active net system; 3) carrying out hole drilling construction; 4) filling nutrient soil in the hole; 5) planting climbing plants in the holes; 6) constructing an active protective net on a high slope; 7) binding the climbing plants and the active protective net together; 8) and (5) carrying out irrigation system construction. According to the mining face high slope hole greening construction method provided by the invention, the nutrient soil is arranged in the hole, the climbing plants are bound on the active protective net, and the nutrient soil and the climbing plants are firmly combined with the slope and are not easy to fall off.
Description
Technical Field
The invention belongs to the technical field of construction, and particularly relates to a construction method for greening hole holes of a high slope of a mining surface.
Background
The traditional slope greening is also called spray mixed plant growing slope greening. The spray-mixed planting living side slope greening technology is based on engineering mechanics and biological theories, and is characterized in that a special spray-mixing machine is used for spraying mixed dry materials such as soil, fertilizers, organic substances, water retention materials, bonding materials and plant seeds to rock surface after being added with water, so that a hardened body with the thickness of about 10 cm and continuous gaps is formed. The seeds can root, sprout and grow in the gaps, and the hardening to a certain degree can prevent the rain wash, thereby achieving the purposes of recovering the vegetation, improving the landscape and protecting the environment. The construction method is characterized in that the combination of the mixed dry materials such as soil, fertilizers, organic substances, water-retaining materials, bonding materials, plant seeds and the like and the side slope is not firm.
Disclosure of Invention
The invention aims to solve the problems and provides a construction method for restoring green of holes of a high slope of a mining face.
The invention adopts the following technical scheme: a mining face high slope hole greening construction method comprises the following specific steps:
1) dangerous rocks are cleared from a slope body to eliminate the hidden danger of later construction;
2) constructing an anchor rod of the active net system;
3) carrying out hole drilling construction;
4) filling nutrient soil in the hole;
5) planting climbing plants in the holes;
6) constructing an active protective net on a high slope;
7) binding the climbing plants and the active protective net together;
8) carrying out irrigation system construction;
the step 8) comprises the following concrete construction steps:
(1) and (3) pump station construction, wherein the pump station is firstly lofted, the axes or outline axes of a water pump, a pump room and a water inlet and outlet building as well as the positions of a rolling pier and a buttress are set according to a drawing, the pile is nailed and the position is marked, then the foundation pit is excavated according to the bottom width boundary line of the foundation pit, then the building of the pump room building is carried out, the building meets the relevant standard, the checking and acceptance are carried out after the building is finished, and the building is backfilled after masonry mortar or concrete is solidified to reach the design strength.
(2) The method comprises the following steps of (1) installing a water pump unit device, wherein the water pump unit is composed of a power machine and a water pump, and the water pump, the power machine and electrical equipment are installed firstly when the water pump unit device is installed; then installing filtering equipment and fertilizer injection equipment, wherein the fertilizer injection equipment is arranged in front of the filter, and a check valve is arranged at the upstream of the fertilizer injection equipment; and a measuring instrument, a control facility and a safety protection device are installed, and pressure gauges are installed behind control valves of the head part and the branch part pivots and in front of and behind the filter and the fertilizer applicator.
(3) The method comprises the following steps of pipeline engineering construction and installation, construction setting and pipe trench excavation, wherein the pipeline engineering construction and installation comprises the steps of setting, setting a measurement control network point on a construction site, connecting a pipe network on the spot according to a design drawing, scattering white ash along the connecting line to obtain a pipe trench central line, then excavating a pipe trench, excavating the bottom of the pipe trench into an arc shape as much as possible, avoiding soft and inhomogeneous zones and rock zones as much as possible by the pipeline, and otherwise, performing foundation treatment, wherein the pipeline installation comprises the steps of firstly drying the pipe and then branching the pipe from the top to the bottom of the slope from the head to the tail, from the low to the high, and then from the top; the central line of the pipeline is straight, and wood pads, brick pads and other cushion blocks are not needed; the plastic pipe is greatly influenced by temperature, and corresponding measures are taken; the quality inspection is carried out at any time when the pipeline is installed; when installing valves and pipe fittings of the flange interfaces, the flanges are coaxial and parallel.
(4) Hard plastic pipes and connection thereof.
(5) Plastic hoses and connection thereof, wherein the plastic hoses in the irrigation system are polyethylene plastic hoses and plastic-coated hoses.
(6) The method comprises the steps of metal pipelines and connection of the metal pipelines, wherein before the metal pipelines are installed, appearance quality and size deviation inspection is carried out, a water pressure resistant test is carried out, the requirements of the current standard are met, the metal pipelines are installed according to the requirements of a use specification, soil is filled in two sides of the middle of each section of the pipeline after the pipelines are installed, and the pipelines are stabilized.
(7) The installation and construction of auxiliary facilities, thrust piers are arranged at the positions of the pipeline, such as horizontal or vertical direction change, diameter change, tee joints, four-way joints and valves; the bottom of the valve is backfilled with gravel to prevent water from draining; the air inlet valve and the air outlet valve are generally arranged at the high position or the local high position of the irrigation system pipe network, and the head parts are respectively arranged at the top of the filter or on a downstream pipe; a drain valve is arranged at the tail ends of the trunk and branch pipes and the lowest position of the pipeline; the control cable is laid along with the pipeline.
(8) Installing an irrigator and a spray head, wherein the spray head is inspected before the spray head is installed, and then a pipeline system is thoroughly washed; on the flat ground or the occasion with small gradient, the installation axis of the spray head is vertical to the ground; the spraying angle of the spray head is reasonably set according to the installation position of the spray head; for gear-driven rotary nozzles, the rotating portion of the nozzle is rotated in a forward direction.
(9) Installing an emitter of the micro-irrigation system, vertically punching a hole on one surface of a capillary tube by using a flat-head punching cone according to a specified interval in the installation of the micro-tube, and then installing a dripper; the interpipe type dripper firstly cuts the capillary into sections according to the connection sequence, and then is connected with the dripper to form a dripping capillary; the micro-irrigation pipe is connected with the bypass.
The concrete construction process of the step 2) is as follows:
(1) drilling and clearing holes, hoisting constructors in the safe hanging basket to the drilling position by using hoisting machinery, drilling an anchor rod hole according to the designed depth, and clearing the holes, wherein the hole depth is more than 20cm longer than the designed anchor rod, the hole diameter is not less than phi 42, when the constructors are limited by rock drilling equipment, two steel ropes forming each anchor rod are respectively anchored into two anchor holes, the hole diameter is not less than phi 35, a herringbone anchor rod is formed, and the included angle between the two steel ropes is 15-30 degrees so as to achieve the same anchoring effect; after drilling reaches the designed depth, stopping drilling immediately, requiring stable drilling for 1-2 minutes, preventing the bottom of a hole from being sharp and extinguishing, preventing the hole diameter from being short of the designed hole diameter, preventing the wall of the drilled hole from being stuck by slag and water, and cleaning the drilled hole completely, using high-pressure air with the air pressure of 0.2-0.4 MPa after the drilling is finished, removing rock powder and water in the hole out of the hole so as to avoid reducing the bonding strength of cement mortar and the rock-soil body of the hole wall, except for anchoring of a relatively hard and complete rock body, not adopting high-pressure water washing, if pressure-bearing water flows out of the anchor hole, arranging anchor ribs and grouting after the water pressure and water quantity are reduced, arranging drain holes at proper positions around for treatment, and if the design requires to treat the water accumulated in the anchor hole, adopting a grouting plugging secondary drilling method for treatment;
(2) installing an anchor rod and grouting, wherein a steel wire rope with the diameter of 16 is adopted as an anchor rod member, the exposed end head is bent into a ring shape, a bracket is arranged at the interval of 2.0m for ensuring that the steel wire rope is centered in a drilled hole, and the tail end of the anchor rod is subjected to anticorrosion treatment by adopting the measures of painting and oiling; checking the number of the anchor hole carefully before installing the anchor rod body, blowing the hole by high-pressure air after the error is confirmed, manually and slowly putting the anchor rod body into the hole, measuring the length of the anchor rod exposed out of the hole by a steel ruler, calculating the length of the anchor rod in the hole, and ensuring the anchoring length; and (2) grouting after inserting the anchor rod, wherein the actual grouting amount is larger than the theoretical grouting amount from the bottom of the hole in normal pressure grouting operation, or the grouting pressure is not lower than 0.25MPa and the grouting amount is not less than the calculated amount by taking the standard that the hole is not exhausted and the hole grout overflows thick grout as the grouting end, the grouting material is cement mortar with the mark number not lower than M20, and the cement mortar with the water-cement ratio of 0.45-0.50 and the sand-lime ratio of 1: 1-1.2 of cement mortar or pure cement slurry with a water cement ratio of 0.45-0.50, wherein the cement is common Portland cement with a particle size of more than 42.5, medium-fine sand with a particle size of not more than 3mm is selected to ensure that the slurry is full, and the grouting body is maintained for not less than three days before the next procedure.
(3) And (3) installing a supporting rope, installing a longitudinal supporting rope and a transverse supporting rope, and fixedly connecting two ends of the tensioned supporting rope with the exposed anchor rod ring sleeves by using 2-4 rope clamps respectively.
The concrete construction process of the step 3) is as follows:
(1) drilling by adopting a down-the-hole drill, and forming a hole by using an impactor and a drill bit with the diameter of 280 mm;
(2) drilling at a low rotating speed, advancing at a low pressure, checking the hole direction again when the hole is formed to be 50cm, and adjusting the drilling machine in time;
(3) and after drilling is finished, pulling out the drill rod and the drilling tool, cleaning the impactor for later use, rechecking the hole depth by using a polyethylene pipe, blowing the hole by using high-pressure air, and pulling out the polyethylene pipe to protect the hole opening when dust in the hole is blown clean and the hole depth reaches the designed length.
The concrete construction steps in the step 4) are as follows: the prepared nutrient soil and workers are hoisted to a 280m hole through hoisting equipment, the bottom, the middle and the upper part of the hole are respectively filled with nutrient soil and water-retaining agent substances with different densities and different configurations, and the climbing plants are waited to be planted after the holes are naturally compacted for a period of time.
The concrete construction steps in the step 6) are as follows: and paving and hanging active protective nets from top to bottom, wherein the overlapping width between the active protective nets is not less than 5cm, the distance between two active protective nets and the distance between the active protective nets and the supporting ropes are tied by phi 1.5 iron wires according to the distance of 1m, and the distance between tie points is not more than 1 m.
Compared with the prior art, the mining face high slope hole greening construction method provided by the invention has the advantages that the nutrient soil is arranged in the hole, the climbing plants are bound on the active protection net, the nutrient soil and the climbing plants are firmly combined with the slope, and the slope is not easy to fall off.
Drawings
FIG. 1 is a plan view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
in the figure, 1-anchor rod, 2-climbing plant, 3-active protective net, 4-nutrient soil and 5-support rope.
Detailed Description
A mining face high slope hole greening construction method comprises the following specific steps:
1) dangerous rocks are cleared from a slope body to eliminate the hidden danger of later construction;
2) constructing an anchor rod of the active net system;
3) carrying out hole drilling construction;
4) filling nutrient soil in the hole;
5) planting climbing plants in the holes;
6) constructing an active protective net on a high slope;
7) binding the climbing plants and the active protective net together;
8) carrying out irrigation system construction;
the step 8) comprises the following concrete construction steps:
(1) and (3) pump station construction, wherein the pump station is firstly lofted, the axes or outline axes of a water pump, a pump room and a water inlet and outlet building as well as the positions of a rolling pier and a buttress are set according to a drawing, the pile is nailed and the position is marked, then the foundation pit is excavated according to the bottom width boundary line of the foundation pit, then the building of the pump room building is carried out, the building meets the relevant standard, the checking and acceptance are carried out after the building is finished, and the building is backfilled after masonry mortar or concrete is solidified to reach the design strength.
(2) The method comprises the following steps of (1) installing a water pump unit device, wherein the water pump unit is composed of a power machine and a water pump, and the water pump, the power machine and electrical equipment are installed firstly when the water pump unit device is installed; then installing filtering equipment and fertilizer injection equipment, wherein the fertilizer injection equipment is arranged in front of the filter, and a check valve is arranged at the upstream of the fertilizer injection equipment; and a measuring instrument, a control facility and a safety protection device are installed, and pressure gauges are installed behind control valves of the head part and the branch part pivots and in front of and behind the filter and the fertilizer applicator.
(3) The method comprises the following steps of pipeline engineering construction and installation, construction setting and pipe trench excavation, wherein the pipeline engineering construction and installation comprises the steps of setting, setting a measurement control network point on a construction site, connecting a pipe network on the spot according to a design drawing, scattering white ash along the connecting line to obtain a pipe trench central line, then excavating a pipe trench, excavating the bottom of the pipe trench into an arc shape as much as possible, avoiding soft and inhomogeneous zones and rock zones as much as possible by the pipeline, and otherwise, performing foundation treatment, wherein the pipeline installation comprises the steps of firstly drying the pipe and then branching the pipe from the top to the bottom of the slope from the head to the tail, from the low to the high, and then from the top; the central line of the pipeline is straight, and wood pads, brick pads and other cushion blocks are not needed; the plastic pipe is greatly influenced by temperature, and corresponding measures are taken; the quality inspection is carried out at any time when the pipeline is installed; when installing valves and pipe fittings of the flange interfaces, the flanges are coaxial and parallel.
(4) Hard plastic pipes and connection thereof.
(5) Plastic hoses and connection thereof, wherein the plastic hoses in the irrigation system are polyethylene plastic hoses and plastic-coated hoses.
(6) The method comprises the steps of metal pipelines and connection of the metal pipelines, wherein before the metal pipelines are installed, appearance quality and size deviation inspection is carried out, a water pressure resistant test is carried out, the requirements of the current standard are met, the metal pipelines are installed according to the requirements of a use specification, soil is filled in two sides of the middle of each section of the pipeline after the pipelines are installed, and the pipelines are stabilized.
(7) The installation and construction of auxiliary facilities, thrust piers are arranged at the positions of the pipeline, such as horizontal or vertical direction change, diameter change, tee joints, four-way joints and valves; the bottom of the valve is backfilled with gravel to prevent water from draining; the air inlet valve and the air outlet valve are generally arranged at the high position or the local high position of the irrigation system pipe network, and the head parts are respectively arranged at the top of the filter or on a downstream pipe; a drain valve is arranged at the tail ends of the trunk and branch pipes and the lowest position of the pipeline; the control cable is laid along with the pipeline.
(8) Installing an irrigator and a spray head, wherein the spray head is inspected before the spray head is installed, and then a pipeline system is thoroughly washed; on the flat ground or the occasion with small gradient, the installation axis of the spray head is vertical to the ground; the spraying angle of the spray head is reasonably set according to the installation position of the spray head; for gear-driven rotary nozzles, the rotating portion of the nozzle is rotated in a forward direction.
(9) Installing an emitter of the micro-irrigation system, vertically punching a hole on one surface of a capillary tube by using a flat-head punching cone according to a specified interval in the installation of the micro-tube, and then installing a dripper; the interpipe type dripper firstly cuts the capillary into sections according to the connection sequence, and then is connected with the dripper to form a dripping capillary; the micro-irrigation pipe is connected with the bypass.
The concrete construction process of the step 2) is as follows:
(1) drilling and clearing holes, hoisting constructors in the safe hanging basket to the drilling position by using hoisting machinery, drilling an anchor rod hole according to the designed depth, and clearing the holes, wherein the hole depth is more than 20cm longer than the designed anchor rod, the hole diameter is not less than phi 42, when the constructors are limited by rock drilling equipment, two steel ropes forming each anchor rod are respectively anchored into two anchor holes, the hole diameter is not less than phi 35, a herringbone anchor rod is formed, and the included angle between the two steel ropes is 15-30 degrees so as to achieve the same anchoring effect; after drilling reaches the designed depth, stopping drilling immediately, requiring stable drilling for 1-2 minutes, preventing the bottom of a hole from being sharp and extinguishing, preventing the hole diameter from being short of the designed hole diameter, preventing the wall of the drilled hole from being stuck by slag and water, and cleaning the drilled hole completely, using high-pressure air with the air pressure of 0.2-0.4 MPa after the drilling is finished, removing rock powder and water in the hole out of the hole so as to avoid reducing the bonding strength of cement mortar and the rock-soil body of the hole wall, except for anchoring of a relatively hard and complete rock body, not adopting high-pressure water washing, if pressure-bearing water flows out of the anchor hole, arranging anchor ribs and grouting after the water pressure and water quantity are reduced, arranging drain holes at proper positions around for treatment, and if the design requires to treat the water accumulated in the anchor hole, adopting a grouting plugging secondary drilling method for treatment;
(2) installing an anchor rod and grouting, wherein a steel wire rope with the diameter of 16 is adopted as an anchor rod member, the exposed end head is bent into a ring shape, a bracket is arranged at the interval of 2.0m for ensuring that the steel wire rope is centered in a drilled hole, and the tail end of the anchor rod is subjected to anticorrosion treatment by adopting the measures of painting and oiling; checking the number of the anchor hole carefully before installing the anchor rod body, blowing the hole by high-pressure air after the error is confirmed, manually and slowly putting the anchor rod body into the hole, measuring the length of the anchor rod exposed out of the hole by a steel ruler, calculating the length of the anchor rod in the hole, and ensuring the anchoring length; and (2) grouting after inserting the anchor rod, wherein the actual grouting amount is larger than the theoretical grouting amount from the bottom of the hole in normal pressure grouting operation, or the grouting pressure is not lower than 0.25MPa and the grouting amount is not less than the calculated amount by taking the standard that the hole is not exhausted and the hole grout overflows thick grout as the grouting end, the grouting material is cement mortar with the mark number not lower than M20, and the cement mortar with the water-cement ratio of 0.45-0.50 and the sand-lime ratio of 1: 1-1.2 of cement mortar or pure cement slurry with a water cement ratio of 0.45-0.50, wherein the cement is common Portland cement with a particle size of more than 42.5, medium-fine sand with a particle size of not more than 3mm is selected to ensure that the slurry is full, and the grouting body is maintained for not less than three days before the next procedure.
(3) And (3) installing a supporting rope, installing a longitudinal supporting rope and a transverse supporting rope, and fixedly connecting two ends of the tensioned supporting rope with the exposed anchor rod ring sleeves by using 2-4 rope clamps respectively.
The concrete construction process of the step 3) is as follows:
(1) drilling by adopting a down-the-hole drill, and forming a hole by using an impactor and a drill bit with the diameter of 280 mm;
(2) drilling at a low rotating speed, advancing at a low pressure, checking the hole direction again when the hole is formed to be 50cm, and adjusting the drilling machine in time;
(3) and after drilling is finished, pulling out the drill rod and the drilling tool, cleaning the impactor for later use, rechecking the hole depth by using a polyethylene pipe, blowing the hole by using high-pressure air, and pulling out the polyethylene pipe to protect the hole opening when dust in the hole is blown clean and the hole depth reaches the designed length.
The concrete construction steps in the step 4) are as follows: the prepared nutrient soil and workers are hoisted to a 280m hole through hoisting equipment, the bottom, the middle and the upper part of the hole are respectively filled with nutrient soil and water-retaining agent substances with different densities and different configurations, and the climbing plants are waited to be planted after the holes are naturally compacted for a period of time.
The concrete construction steps in the step 6) are as follows: and paving and hanging active protective nets from top to bottom, wherein the overlapping width between the active protective nets is not less than 5cm, the distance between two active protective nets and the distance between the active protective nets and the supporting ropes are tied by phi 1.5 iron wires according to the distance of 1m, and the distance between tie points is not more than 1 m.
Claims (5)
1. A mining face high slope hole greening construction method is characterized in that: the method comprises the following specific steps:
1) dangerous rocks are cleared from a slope body to eliminate the hidden danger of later construction;
2) constructing an anchor rod of the active net system;
3) carrying out hole drilling construction;
4) filling nutrient soil in the hole;
5) planting climbing plants in the holes;
6) constructing an active protective net on a high slope;
7) binding the climbing plants and the active protective net together;
8) carrying out irrigation system construction;
the step 8) comprises the following concrete construction steps:
(1) pump station construction, wherein the pump station is firstly lofted, the axes or outline axes of a water pump, a pump room, a water inlet/outlet building, a rolling pier and a buttress are sequentially released according to a drawing, the positions of the rolling pier and the buttress are nailed and marked, then a foundation pit is excavated according to the bottom width boundary line of the foundation pit, then the building of the pump room building is carried out, the building meets the relevant specification, the checking and acceptance are carried out after the building is finished, and the building is backfilled after masonry mortar or concrete is solidified to reach the design strength;
(2) the method comprises the following steps of (1) installing a water pump unit device, wherein the water pump unit is composed of a power machine and a water pump, and the water pump, the power machine and electrical equipment are installed firstly when the water pump unit device is installed; then installing filtering equipment and fertilizer injection equipment, wherein the fertilizer injection equipment is arranged in front of the filter, and a check valve is arranged at the upstream of the fertilizer injection equipment; then, a measuring instrument, a control facility and a safety protection device are installed, and pressure gauges are installed behind control valves of the head part and the branch hub and in front of and behind the filter and the fertilizer applicator;
(3) the method comprises the following steps of pipeline engineering construction and installation, construction setting and pipe trench excavation, wherein the pipeline engineering construction and installation comprises the steps of setting, setting a measurement control network point on a construction site, connecting a pipe network on the spot according to a design drawing, scattering white ash along the connecting line to obtain a pipe trench central line, then excavating a pipe trench, excavating the bottom of the pipe trench into an arc shape as much as possible, avoiding soft and inhomogeneous zones and rock zones as much as possible by the pipeline, and otherwise, performing foundation treatment, wherein the pipeline installation comprises the steps of firstly drying the pipe and then branching the pipe from the top to the bottom of the slope from the head to the tail, from the low to the high, and then from the top; the central line of the pipeline is straight, and wood pads, brick pads and other cushion blocks are not needed; the plastic pipe is greatly influenced by temperature, and corresponding measures are taken; the quality inspection is carried out at any time when the pipeline is installed; when installing a valve and a pipe fitting of an flange interface, the flanges are coaxial and parallel;
(4) hard plastic pipes and connection thereof;
(5) plastic hoses and the connection thereof, wherein the plastic hoses in the irrigation system are polyethylene plastic hoses and plastic-coated hoses;
(6) the method comprises the following steps of (1) connecting metal pipelines, wherein before the metal pipelines are installed, appearance quality and size deviation inspection is carried out, a water pressure resistance test is carried out, the requirements of the current standard are met, the metal pipelines are installed according to the requirements of a use specification, soil is filled in two sides of the middle of each section of the pipeline after the pipelines are installed, and the pipelines are stabilized;
(7) the installation and construction of auxiliary facilities, thrust piers are arranged at the positions of the pipeline, such as horizontal or vertical direction change, diameter change, tee joints, four-way joints and valves; the bottom of the valve is backfilled with gravel to prevent water from draining; the air inlet valve and the air outlet valve are generally arranged at the high position or the local high position of the irrigation system pipe network, and the head parts are respectively arranged at the top of the filter or on a downstream pipe; a drain valve is arranged at the tail ends of the trunk and branch pipes and the lowest position of the pipeline; laying a control cable along with the pipeline;
(8) installing an irrigator and a spray head, wherein the spray head is inspected before the spray head is installed, and then a pipeline system is thoroughly washed; on the flat ground or the occasion with small gradient, the installation axis of the spray head is vertical to the ground; the spraying angle of the spray head is reasonably set according to the installation position of the spray head; for the gear-driven rotary nozzle, the rotary part of the nozzle rotates in the forward direction when rotating;
(9) installing an emitter of the micro-irrigation system, vertically punching a hole on one surface of a capillary tube by using a flat-head punching cone according to a specified interval in the installation of the micro-tube, and then installing a dripper; the interpipe type dripper firstly cuts the capillary into sections according to the connection sequence, and then is connected with the dripper to form a dripping capillary; the micro-irrigation pipe is connected with the bypass.
2. The mining face high slope hole regreening construction method as claimed in claim 1, wherein: the concrete construction process of the step 2) is as follows:
(1) drilling and clearing holes, hoisting constructors in the safe hanging basket to the drilling position by using a hoisting machine, drilling anchor rod holes according to the designed depth, wherein the hole depth is more than 20cm longer than the designed anchor rod, the hole diameter is not less than phi 42, when the constructors are limited by a rock drilling device, two steel ropes forming each anchor rod are respectively anchored into two anchor holes, the hole diameter is not less than phi 35, a herringbone anchor rod is formed, and the included angle between the two steel ropes is 15-30 degrees so as to achieve the same anchoring effect;
after drilling reaches the designed depth, stopping drilling immediately, requiring stable drilling for 1-2 minutes, preventing the bottom of a hole from being sharp and extinguishing, preventing the hole diameter from being short of the designed hole diameter, preventing the wall of the drilled hole from being stuck by slag and water, and cleaning the drilled hole completely, using high-pressure air with the air pressure of 0.2-0.4 MPa after the drilling is finished, removing rock powder and water in the hole out of the hole so as to avoid reducing the bonding strength of cement mortar and the rock-soil body of the hole wall, except for anchoring of a relatively hard and complete rock body, not adopting high-pressure water washing, if pressure-bearing water flows out of the anchor hole, arranging anchor ribs and grouting after the water pressure and water quantity are reduced, arranging drain holes at proper positions around for treatment, and if the design requires to treat the water accumulated in the anchor hole, adopting a grouting plugging secondary drilling method for treatment;
(2) installing an anchor rod and grouting, wherein a steel wire rope with the diameter of 16 is adopted as an anchor rod member, the exposed end head is bent into a ring shape, a bracket is arranged at the interval of 2.0m for ensuring that the steel wire rope is centered in a drilled hole, and the tail end of the anchor rod is subjected to anticorrosion treatment by adopting the measures of painting and oiling; checking the number of the anchor hole carefully before installing the anchor rod body, blowing the hole by high-pressure air after the error is confirmed, manually and slowly putting the anchor rod body into the hole, measuring the length of the anchor rod exposed out of the hole by a steel ruler, calculating the length of the anchor rod in the hole, and ensuring the anchoring length;
and (2) grouting after inserting the anchor rod, wherein the actual grouting amount is larger than the theoretical grouting amount from the bottom of the hole in normal pressure grouting operation, or the grouting pressure is not lower than 0.25MPa and the grouting amount is not less than the calculated amount by taking the standard that the hole is not exhausted and the hole grout overflows thick grout as the grouting end, the grouting material is cement mortar with the mark number not lower than M20, and the cement mortar with the water-cement ratio of 0.45-0.50 and the sand-lime ratio of 1: 1-1.2 of cement mortar or pure cement slurry with a water-cement ratio of 0.45-0.50, wherein the cement is common Portland cement with a particle size of more than 42.5, medium-fine sand with a particle size of not more than 3mm is selected to ensure that the slurry is full, and the slurry is cured for not less than three days before the next procedure;
(3) and (3) installing a supporting rope, installing a longitudinal supporting rope and a transverse supporting rope, and fixedly connecting two ends of the tensioned supporting rope with the exposed anchor rod ring sleeves by using 2-4 rope clamps respectively.
3. The mining face high slope hole regreening construction method according to claim 1, characterized in that: the concrete construction process of the step 3) is as follows:
(1) adopting a down-the-hole drill to drill holes, using an impactor and a drill bit with the diameter of 280mm to drill holes,
(2) drilling at a low rotating speed, advancing at a low pressure, checking the hole direction again when the hole is formed to be 50cm, and adjusting the drilling machine in time;
(3) and after drilling is finished, pulling out the drill rod and the drilling tool, cleaning the impactor for later use, rechecking the hole depth by using a polyethylene pipe, blowing the hole by using high-pressure air, and pulling out the polyethylene pipe to protect the hole opening when dust in the hole is blown clean and the hole depth reaches the designed length.
4. The mining face high slope hole regreening construction method according to claim 1, characterized in that: the concrete construction steps in the step 4) are as follows: the prepared nutrient soil and workers are hoisted to a 280m hole through hoisting equipment, the bottom, the middle and the upper part of the hole are respectively filled with nutrient soil and water-retaining agent substances with different densities and different configurations, and the climbing plants are waited to be planted after the holes are naturally compacted for a period of time.
5. The mining face high slope hole regreening construction method according to claim 1, characterized in that: the concrete construction steps in the step 6) are as follows: and paving and hanging active protective nets from top to bottom, wherein the overlapping width between the active protective nets is not less than 5cm, the distance between two active protective nets and the distance between the active protective nets and the supporting ropes are tied by phi 1.5 iron wires according to the distance of 1m, and the distance between tie points is not more than 1 m.
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| CN107938686A (en) * | 2017-11-15 | 2018-04-20 | 安徽金联地矿科技有限公司 | Green body Slope greening method is answered based on drought and waterlogging area self application |
| CN110909432A (en) * | 2019-12-10 | 2020-03-24 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drill bit design method based on artificial intelligence control theory |
| CN111657012A (en) * | 2020-06-28 | 2020-09-15 | 长江岩土工程总公司（武汉） | High and steep rock slope greening structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744025A (en) * | 1980-08-28 | 1982-03-12 | Tadashi Miyamoto | Tree planting method for slope |
| CN101113591A (en) * | 2006-07-25 | 2008-01-30 | 北京精诚博桑科技有限公司 | Slope protection greening method |
| CN102425181A (en) * | 2011-12-26 | 2012-04-25 | 杭州市园林绿化工程有限公司 | Side slope greening restoration method |
| CN105484174A (en) * | 2014-09-15 | 2016-04-13 | 五冶集团上海有限公司 | Slope anti-rockfall guard net and construction method thereof |
-
2017
- 2017-05-02 CN CN201710301192.3A patent/CN107059893B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744025A (en) * | 1980-08-28 | 1982-03-12 | Tadashi Miyamoto | Tree planting method for slope |
| CN101113591A (en) * | 2006-07-25 | 2008-01-30 | 北京精诚博桑科技有限公司 | Slope protection greening method |
| CN102425181A (en) * | 2011-12-26 | 2012-04-25 | 杭州市园林绿化工程有限公司 | Side slope greening restoration method |
| CN105484174A (en) * | 2014-09-15 | 2016-04-13 | 五冶集团上海有限公司 | Slope anti-rockfall guard net and construction method thereof |
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