Slope drainage system and method of inclined hole group pressure reduction water diversion-surface interception combined with drainage

Abstract

The present invention relates to a slope drainage system and method for a group of inclined water diversion holes with reduced pressure and surface interception, which includes the following steps: anchor construction, assembly scaffolding installation, inclined water diversion hole construction, prefabricated and assembled ecological drainage ditch construction, grass-planted ecological drainage ditch construction, and buried drainage ditch construction. The beneficial effects of the present invention are: using prefabricated and assembled ecological drainage ditches, trench excavation and grass-planted ecological drainage ditches, and buried drainage ditches to form a surface interception drainage + longitudinal and transverse drainage system, effectively preventing secondary damage to the treatment area by surface water and soil erosion caused by disorderly discharge of atmospheric precipitation; drilling an inclined water diversion hole group in the slope, installing a drainage pipe in the hole, and wrapping the outer wall of the drainage pipe with geotextile to prevent clogging, effectively reducing the water pressure in the slope and diverting the groundwater out, gathering it in the buried drainage ditch, and discharging it uniformly, solving the problem of long-term groundwater infiltration and slope damage in landslide treatment areas, anchor net spraying treatment areas, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy projects, and in particular relates to a slope drainage system and method combining an upward inclined hole group pressure reduction water diversion and surface interception. Background Art

[0002] The ecological restoration project of the land space along the Yangtze River in Jurong City consists of 37 abandoned mine pits of different sizes, which are distributed in three blocks: Baohua Town, Xiashu Town, and Biancheng Town in Jurong City, involving a total ecological restoration area of ​​about 1.5 square kilometers. The status of the abandoned pits is different, and the on-site environment is very complex. Among them, there are 18 steep slopes with a relative height difference of more than 200m and a slope angle of more than 75 degrees; 12 steep slopes with a relative height difference of 100-200m and a slope angle of more than 75 degrees; 8 pits with landslide hazards; 30 pits involving backfilling of deep pits at the bottom of the pit; 27 pits close to important structures such as high-speed railways, national highways, energy-storage power stations, and factories (civilian) houses. The high and steep slopes left behind are mostly limestone, sandstone, granite, etc., with developed joints and fissures. Affected by long-term weathering and softening after encountering water, there are geological disasters such as collapse and landslides on the top and surface of the slope. In order to prevent secondary damage to the treatment area by surface water, drainage treatment is mainly carried out in the landslide treatment area and anchor net spraying treatment area to prevent groundwater from long-term infiltration and damage to the slope.

[0003] In summary, for the current construction of slope drainage systems, it is very important to seek a slope drainage system and its construction method that is fast, simple to operate, and has high reliable drainage and protection construction quality. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a slope drainage system and method combining an inclined hole group pressure reduction water diversion and surface interception.

[0005] This inclined hole group pressure relief water diversion-surface interception combined slope drainage system includes prefabricated assembled ecological drainage ditches, slopes, assembled scaffolding, buried drainage ditches, grass-planted ecological drainage ditches and seepage pipes;

[0006] A construction platform is provided at the bottom of the slope, on which an assembled scaffold is placed; several layers of assembled scaffold are installed layer by layer from the bottom of the slope to the top of the slope; all assembled scaffolds except the top assembled scaffold are equipped with a complete set of drilling machine equipment, which includes an adjustable guide rail beam, an I-shaped slide rail and a drilling machine. The drilling machine moves on the adjustable guide rail beam, and the adjustable guide rail beam moves on the assembled scaffold. The elevation angle of the adjustable guide rail beam is adjusted by the support column and the jack;

[0007] Several layers of inclined water diversion holes are drilled on the slope, and drainage pipes are installed inside the inclined water diversion holes; the prefabricated ecological drainage ditch is located at the top of the slope, and green plants are planted along the longitudinal direction of the slope through the grass-planted ecological drainage ditch, and a buried drainage ditch is provided at the bottom of the slope; a permeable hose is provided in the grass-planted ecological drainage ditch, and both ends of the permeable hose are respectively connected to the prefabricated ecological drainage ditch and the buried drainage ditch.

[0008] As a preferred embodiment: a construction platform is provided at the bottom of the slope, on which an assembled scaffolding is placed; several anchor rods are installed in holes drilled in the slope, and several layers of assembled scaffolding are installed layer by layer from the bottom of the slope to the top of the slope, wherein the assembled scaffolding is fixedly connected to the anchor rods, and two adjacent layers of assembled scaffolding are fixedly connected by bolts, and a steel pad is welded at the contact position between the bottom layer of assembled scaffolding and the construction platform.

[0009] As a preferred embodiment: the drilling machine complete set of equipment includes a drill rod guide control device, a hinge shaft, a bracket base, an I-shaped slide rail, an adjustable guide rail beam, a chain, a drilling machine and a drill rod; wherein the I-shaped slide rail is fixed to the assembled scaffolding by screws, and the bracket base is installed on the upper part of the I-shaped slide rail, wherein the bracket base slides on the I-shaped slide rail; a bracket column and a jack are arranged on the bracket base, and the bracket column and the top of the jack support the adjustable guide rail beam through the hinge shaft, wherein the elevation angle of the adjustable guide rail beam changes when the jack is raised or lowered; the upper part of the adjustable guide rail beam is provided with a guide rail, and the lower part is provided with a groove A drill rod guide control device is provided at the end of the adjustable guide rail crossbeam, and the drill rod guide control device is welded by a circular ring and a steel plate, wherein the drilling machine moves on the guide rail through a chain, and the drill rod is inserted into the drill rod guide control device, and the drilling angle of the drill rod is the same as the elevation angle of the adjustable guide rail crossbeam; a number of upward-inclined water diversion holes are drilled on the surface of the slope, and drainage pipes are installed in the upward-inclined water diversion holes, wherein the drainage pipes include permeable holes, geotextiles, ties and anti-backflow one-way plastic plates, permeable holes are provided at the bottom of the drainage pipes and wrapped with geotextiles, the geotextiles are fixed with ties, and an anti-backflow one-way plastic plate is provided on the drainage pipes and fixed with ties.

[0010] As a preferred embodiment: the prefabricated ecological drainage ditch is in an inverted T-shape; a cushion layer is provided at the bottom of the prefabricated ecological drainage ditch, a prefabricated drainage ditch is installed on the upper part of the cushion layer, the prefabricated drainage ditch is provided with reserved holes and quick-installation docking grooves, and the reserved holes are connected to drainage pipes; planting soil is backfilled on both sides of the top of the prefabricated drainage ditch, and green plants are planted in the planting soil; the grass-planted ecological drainage ditch is in an inverted T-shape, and geotextile, a large-grained gravel layer, a small-grained gravel layer and planting soil are arranged in sequence on the bottom of the grass-planted ecological drainage ditch, wherein a permeable hose is arranged in the large-grained gravel layer, and green plants are planted in the planting soil; a cushion layer is provided at the bottom of the buried drainage ditch, a prefabricated drainage ditch is installed on the upper part of the cushion layer, an embedded prefabricated cover plate is installed on the top of the prefabricated drainage ditch, a drainage pipe is also connected to the bottom of the prefabricated drainage ditch, and a drainage hole is provided on the embedded prefabricated cover plate; the permeable hose is connected to the drainage pipes on the prefabricated ecological drainage ditch and the buried drainage ditch.

[0011] The construction method of the inclined hole group pressure relief water diversion-surface interception combined slope drainage system comprises the following steps:

[0012] Step 1: Anchor construction: Drill holes on the slope and install anchors;

[0013] Step 2: Installation of prefabricated scaffolding: Repair the bottom of the slope into a construction platform, and install the prefabricated scaffolding layer by layer from the bottom of the slope to the top of the slope on the construction platform.

[0014] Step 3: Construction of inclined water diversion holes: Install a complete set of drilling equipment on the assembled scaffolding; construct inclined water diversion holes with built-in drainage pipes using the complete set of drilling equipment;

[0015] Step 4: Construction of prefabricated ecological drainage ditch: Set up a prefabricated ecological drainage ditch at the top of the slope, install drainage pipes on the sides of the prefabricated ecological drainage ditch, and plant green plants on both sides of the top;

[0016] Step 5: Construction of grass-planted ecological drainage ditch: Set up grass-planted ecological drainage ditch along the slope longitudinally, with built-in permeable hose, and plant green plants in the planting soil;

[0017] Step 6. Construction of buried drainage ditch: Set up buried drainage ditch at the bottom of the slope, and connect the two ends of the permeable hose in the grass-planted ecological drainage ditch to the prefabricated ecological drainage ditch and the buried drainage ditch respectively to form a surface interception drainage + longitudinal and transverse drainage system.

[0018] Preferably, in step 2: the prefabricated scaffolding is fixedly connected to the anchor rods, and in the two adjacent layers of prefabricated scaffolding, the upper prefabricated scaffolding is placed on the lower prefabricated scaffolding and fixedly connected by bolts, and a steel pad is welded at the contact position between the bottom prefabricated scaffolding and the construction platform.

[0019] As a preferred embodiment, in step 4: the support base slides on the I-shaped slide rail; the elevation angle of the adjustable guide rail beam is adjusted on the support base by a jack; the drilling machine moves on the adjustable guide rail beam, and the drill rod is inserted into the drill rod guide control device; the elevation angle of the adjustable guide rail beam is adjusted by a jack, and then the drilling angle of the drill rod is adjusted to perform the upward-inclined water guide hole drilling construction;

[0020] The drainage pipe includes a permeable hole, a geotextile, a tying wire and an anti-backflow one-way plastic plate. A permeable hole is set at the bottom of the drainage pipe and wrapped with a geotextile. The geotextile is fixed with a tying wire. An anti-backflow one-way plastic plate is set on the drainage pipe at a distance of cm from the opening of the inclined water diversion hole and fixed with a tying wire.

[0021] Preferably, in step six: a cushion layer is provided at the bottom of the buried drainage ditch, a prefabricated drainage ditch is installed on the upper part of the cushion layer, an embedded prefabricated cover plate is installed on the top of the prefabricated drainage ditch, and drainage holes are provided on the embedded prefabricated cover plate.

[0022] The beneficial effects of the present invention are:

[0023] 1) The present invention adopts prefabricated and assembled ecological drainage ditches, trench excavation and grass-planting ecological drainage ditches, and buried drainage ditches to form a surface interception drainage + vertical and horizontal drainage system, which effectively prevents secondary damage to the treatment area by surface water and soil erosion caused by disorderly discharge of atmospheric precipitation.

[0024] 2) The present invention adopts the "underground decompression water diversion method", drills an upward inclined water diversion hole group on the slope, installs a drainage pipe in the hole, and wraps the outer wall of the drainage pipe with geotextile to prevent blockage, effectively reducing the water pressure in the slope and diverting the groundwater out, collecting it into the buried drainage ditch for unified discharge, thus solving the problem of long-term groundwater infiltration and slope damage in landslide control areas, anchor net spraying control areas, etc.

[0025] 3) Compared with traditional construction technology, the present invention has fast construction speed, outstanding drainage and protection effects, has achieved significant economic, environmental and social benefits, and has good prospects for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the cross section of the assembled scaffolding;

[0027] Figure 2 It is a schematic diagram of drilling an inclined water diversion hole;

[0028] Figure 3 It is a cross-sectional diagram of the installation of a complete set of drilling machine equipment;

[0029] Figure 4 It is a schematic diagram of the installation of the drill pipe steering control device;

[0030] Figure 5It is a cross-sectional schematic diagram of the slope drainage system of the inclined hole group pressure relief water diversion and surface interception combination;

[0031] Figure 6 It is a side elevation diagram of the slope drainage system of the inclined hole group pressure relief water diversion and surface interception combination;

[0032] Figure 7 This is a schematic diagram of the drainage pipe sample;

[0033] Figure 8 It is a schematic diagram of the cross section of a prefabricated ecological drainage ditch;

[0034] Fig. 9 This is a schematic diagram of the prefabricated drainage ditch;

[0035] Fig.10 This is a schematic diagram of the cross section of a grass-planted ecological drainage ditch;

[0036] Fig.11 It is a schematic diagram of the buried drainage ditch cross section;

[0037] Fig.12 This is a schematic diagram of the embedded prefabricated cover;

[0038] Fig.13 It is a construction process flow chart of the present invention.

[0039] In the figure: 1-prefabricated ecological drainage ditch, 2-regreening plants, 3-slope, 4-anchor rod, 5-assembled scaffolding, 6-drilling machine complete set of equipment, 7-grouting body, 8-steel pad, 9-drill rod guide control device, 10-hinge shaft, 11-support column, 12-support base, 13-screw, 14-I-shaped slide rail, 15-jack, 16-adjustable guide rail beam, 17-chain, 18-drilling machine, 19-drill rod, 20-guide rail, 2 1-groove, 22-upward inclined water guide hole, 23-buried drainage ditch, 24-grass-planted ecological drainage ditch, 25-permeable hole, 26-geotextile, 27-tie wire, 28-drainage pipe, 29-anti-backflow one-way plastic board, 30-prefabricated drainage ditch, 31-planting soil, 32-reserved hole, 33-cushion, 34-small-size gravel layer, 35-large-size gravel layer, 36-permeable hose, 37-embedded prefabricated cover plate, 38-drainage hole, 39-drainage pipe. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for ordinary persons in the art, without departing from the principle of the present invention, the present invention can also be modified in some ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0041] Embodiment 1

[0042] As an example, Figures 1 to 12 As shown, the inclined hole group decompression water diversion-surface interception combined slope drainage system includes a prefabricated assembled ecological drainage ditch 1, greening plants 2, slopes 3, anchor rods 4, assembled scaffolds 5, drilling machine complete equipment 6, grouting body 7, steel pads 8, drill rod guide control devices 9, hinge shafts 10, support columns 11, support bases 12, screws 13, I-shaped slide rails 14, jacks 15, adjustable guide rail beams 16, chains 17, drilling machines 18, and drill rods. 19, guide rail 20, groove 21, inclined water diversion hole 22, buried drainage ditch 23, grass-planted ecological drainage ditch 24, permeable hole 25, geotextile 26, wire tie 27, drainage pipe 28, anti-backflow one-way plastic plate 29, prefabricated drainage ditch 30, planting soil 31, reserved hole 32, cushion layer 33, 15 cm thick gravel layer 34, 35 cm thick gravel layer 35, permeable hose 36, embedded prefabricated cover plate 37, drainage hole 38, drainage pipe 39. The inclined hole group decompression water diversion-surface interception combined slope drainage system adopts track sliding drilling rig stable support, drill rod guide control device 9, inner support support guide drainage pipe lowering device, prefabricated assembled ecological drainage ditch 1, trench excavation grass-planted ecological drainage ditch, and buried drainage ditch 23.

[0043] The assembled scaffolding 5 is made of steel in a factory, the slope 3 is repaired, and the bottom of the slope 3 is repaired into a construction platform to place the assembled scaffolding 5; holes are drilled and anchor rods 4 are installed at the designed position of the slope 3. After the anchor rods 4 are constructed, the assembled scaffolding 5 is installed layer by layer from the bottom of the slope to the top of the slope, wherein the assembled scaffolding 5 is fixedly connected with the anchor rods 4, the upper assembled scaffolding 5 is placed on the lower assembled scaffolding 5 and fixedly connected by bolts, and the steel pad 8 is welded at the contact position between the assembled scaffolding 5 at the bottom of the slope and the construction platform;

[0044] The drilling machine complete set 6 is composed of a drill rod guide control device 9, a hinge shaft 10, a support column 11, a support base 12, a screw 13, an I-shaped slide rail 14, a jack 15, an adjustable guide rail beam 16, a chain 17, a drilling machine 18, a drill rod 19, a guide rail 20, a groove 21, etc.; wherein the I-shaped slide rail 14 is fixed to the assembled scaffold 5 by a screw 13, and a support base 12 is installed on the upper part of the I-shaped slide rail 14, wherein the support base 12 can slide on the I-shaped slide rail 14; a support column 11, a jack 15 and an adjustable guide rail beam 16 are arranged on the support base 12 through a hinge shaft 10, wherein the adjustable jack 15 can adjust the elevation angle of the adjustable guide rail beam 16; a guide rail 20 is arranged on the upper part of the adjustable guide rail beam 16, an embedded groove 21 is arranged on the lower part, and a drill rod guide control device 9 is arranged at the end. The circular ring and the steel plate are welded, wherein the drilling machine 18 can be moved on the guide rail 20 by the traction of the chain 17, and the drill rod 19 is inserted into the drill rod guide control device 9, wherein the adjusting jack 15 can adjust the elevation angle of the adjustable guide rail cross beam 16, and then adjust the drilling angle of the drill rod 19; after the construction of the inclined water diversion hole 22 is completed, a drainage pipe 28 is built in, wherein the drainage pipe 28 is composed of a permeable hole 25, a geotextile 26, a tie wire 27, an anti-backflow one-way plastic plate 29, etc., the bottom of the drainage pipe 28 is provided with a permeable hole 25 and wrapped with a geotextile 26, the geotextile 26 is fixed with a tie wire 27, the drainage pipe 28 is provided with an anti-backflow one-way plastic plate 29 50cm away from the hole position in the inclined water diversion hole 22 and fixed with the tie wire 27, the anti-backflow one-way plastic plate 29 can prevent the drainage pipe 28 from slipping from the inclined water diversion hole 22 or moving out of the hole;

[0045] The prefabricated assembled ecological drainage ditch 1 is located at the top of the slope 3 and is used for "surface interception and drainage"; a groove is made at the horizontal design position at the top of the slope 3, wherein the groove is in the shape of an inverted "T"; a cushion layer 33 is arranged at the bottom of the groove, and a prefabricated drainage ditch 30 is installed on the upper part of the cushion layer 33, wherein the prefabricated drainage ditch 30 is prefabricated in the factory, and a reserved hole 32 and a prefabricated drainage ditch 30 quick installation docking groove are arranged thereon, and a drainage pipe 39 is installed in the reserved hole 32; planting soil 31 is backfilled on both sides of the top of the prefabricated drainage ditch 30, and green plants 2 are planted in the planting soil 31; the grass-planted ecological drainage ditch 24 is grooved at the longitudinal design position of the slope 3, wherein the groove is in the shape of an inverted "T", starting from the bottom of the groove in sequence A geotextile 26, a large-size crushed stone layer 35, a small-size crushed stone layer 34, and a planting soil 31 are provided, wherein a permeable hose 36 is provided in the large-size crushed stone layer 35, and a regreening plant 2 is planted in the planting soil 31; the embedded drainage ditch 23 is grooved at the bottom of the slope 3, a cushion layer 33 is provided at the bottom of the ditch, a prefabricated drainage ditch 30 is installed on the upper part of the cushion layer 33, an embedded prefabricated cover plate 37 is installed on the top of the prefabricated drainage ditch 30, and a drainage hole 38 is provided on the embedded prefabricated cover plate 37; a drainage pipe 39 is also connected to the bottom of the prefabricated drainage ditch 30, and the permeable hose 36 is connected to the drainage pipe 39 on the prefabricated assembled ecological drainage ditch 1 and the embedded drainage ditch 23, forming a surface interception drainage + longitudinal and transverse drainage system;

[0046] The large-size gravel layer 35 is a 35-cm-thick gravel layer with a grain size of 30-50 mm; the small-size gravel layer 34 is a 15-cm-thick gravel layer with a grain size of 5-15 mm; the planting soil 31 is 55 cm thick, and the ratio of sand to soil is 2:8.

[0047] Embodiment 2

[0048] As another embodiment, the construction method of the upward inclined hole group pressure reduction water diversion-surface interception combined slope drainage system proposed in the first embodiment is as follows: Fig.13 As shown, the main construction steps are as follows:

[0049] Step 1. Construction preparation: Before drilling the inclined drainage holes, make sure to make three connections and one leveling, level the site, equip the water and electricity required for construction, equip the silt removal system during construction, and formulate corresponding construction safety measures.

[0050] Repair slopes: level the site and level the side slopes and platforms at all levels according to the drawing requirements.

[0051] Anchor bolt construction: Drill holes and install anchor bolts 4 at the designed position of slope 3;

[0052] Step 2, installation of prefabricated scaffolding: the prefabricated scaffolding 5 is processed by steel in the factory, the slope 3 is repaired, and the bottom of the slope 3 is repaired into a construction platform to place the prefabricated scaffolding 5; after the anchor rod 4 is constructed, the prefabricated scaffolding 5 is installed layer by layer from the bottom of the slope to the top of the slope, wherein the prefabricated scaffolding 5 is fixedly connected with the anchor rod 4, the upper prefabricated scaffolding 5 is placed on the lower prefabricated scaffolding 5 and fixedly connected by bolts, and the steel pad 8 is welded to the contact part between the prefabricated scaffolding 5 at the bottom of the slope and the construction platform;

[0053] Step 3, drilling machine complete set installation: The drilling machine complete set 6 is composed of a drill rod guide control device 9, a hinge shaft 10, a support column 11, a support base 12, a screw 13, an I-shaped slide rail 14, a jack 15, an adjustable guide rail crossbeam 16, a chain 17, a drilling machine 18, a drill rod 19, a guide rail 20, a groove 21, etc.; wherein the I-shaped slide rail 14 is fixed to the assembled scaffolding 5 by a screw 13, and the support base 12 is installed on the upper part of the I-shaped slide rail 14, wherein the support base 12 can be on the I-shaped The support base 12 is provided with a support column 11, a jack 15 and an adjustable guide rail beam 16 through a hinge shaft 10, wherein the adjustable jack 15 can adjust the elevation angle of the adjustable guide rail beam 16; the upper part of the adjustable guide rail beam 16 is provided with a guide rail 20, the lower part is provided with an embedded groove 21, and the end is provided with a drill rod guide control device 9 welded by a ring and a steel plate, wherein the drilling machine 18 can be moved on the guide rail 20 by being pulled by a chain 17, and the drill rod 19 is inserted into the drill rod guide control device 9;

[0054] Construction of the inclined water guide hole: the jack 15 can be adjusted to adjust the elevation angle of the adjustable guide rail beam 16, and then the drilling angle of the drill rod 19 can be adjusted to perform drilling construction; after the inclined water guide hole 22 is constructed, a drainage pipe 28 is built in, wherein the drainage pipe 28 is composed of a permeable hole 25, a geotextile 26, a tie wire 27, an anti-backflow one-way plastic plate 29, etc., a permeable hole 25 is set at the bottom of the drainage pipe 28 and wrapped with a geotextile 26, and the geotextile 26 is fixed with a tie wire 27, and the drainage pipe 28 is provided with an anti-backflow one-way plastic plate 29 50 cm away from the hole mouth in the inclined water guide hole 22 and fixed with the tie wire 27, and the anti-backflow one-way plastic plate 29 can prevent the drainage pipe 28 from slipping from the inclined water guide hole 22 or moving out of the hole;

[0055] Step 4: Construction of prefabricated ecological drainage ditch: The prefabricated ecological drainage ditch 1 is located at the top of the slope 3 and is used for "surface interception and drainage". A groove is made at the horizontal design position at the top of the slope 3, wherein the groove is in an inverted "T" shape. A cushion layer 33 is arranged at the bottom of the groove, and a prefabricated drainage ditch 30 is installed on the upper part of the cushion layer 33. The prefabricated drainage ditch 30 is prefabricated in the factory, and a reserved hole 32 and a prefabricated drainage ditch 30 quick installation docking notch are arranged thereon, and a drainage pipe 39 is installed in the reserved hole 32. Planting soil 31 is backfilled on both sides of the top of the prefabricated drainage ditch 30, and green plants 2 are planted in the planting soil 31.

[0056] Step 5: Construction of grass-planted ecological drainage ditch: The grass-planted ecological drainage ditch 24 is grooved at the longitudinal design position of the slope 3, wherein the groove is in an inverted "T" shape, and geotextile 26, large-size crushed stone layer 35, small-size crushed stone layer 34, and planting soil 31 are arranged in sequence from the bottom of the groove, wherein a permeable hose 36 is arranged in the large-size crushed stone layer 35, and regreening plants 2 are planted in the planting soil 31;

[0057] Step six, construction of embedded drainage ditch: the embedded drainage ditch 23 is grooved at the bottom of the slope 3, a cushion layer 33 is arranged at the bottom of the groove, a prefabricated drainage ditch 30 is installed on the upper part of the cushion layer 33, an embedded prefabricated cover plate 37 is installed on the top of the prefabricated drainage ditch 30, and a drainage hole 38 is arranged on the embedded prefabricated cover plate 37; the permeable hose 36 is connected to the drainage pipe 39 on the prefabricated assembled ecological drainage ditch 1 and the embedded drainage ditch 23 to form a surface interception drainage + longitudinal and transverse drainage system.

Claims

1. A slope drainage system combining decompression water diversion with inclined hole groups and surface interception, characterized in that: It comprises a prefabricated ecological drainage ditch (1), a slope (3), an assembled scaffold (5), an embedded drainage ditch (23), a grass-planted ecological drainage ditch (24) and a drainage pipe (28); A construction platform is provided at the bottom of the slope (3), and an assembled scaffold (5) is placed on the construction platform; several layers of assembled scaffolds (5) are installed layer by layer from the bottom of the slope to the top of the slope; a drilling machine complete set (6) is provided on the assembled scaffolds (5) other than the uppermost assembled scaffold (5), and the drilling machine complete set (6) includes an adjustable guide rail beam (16), an I-shaped slide rail (14) and a drilling machine (18); the drilling machine (18) moves on the adjustable guide rail beam (16), and the adjustable guide rail beam (16) moves on the assembled scaffold (5); the elevation angle of the adjustable guide rail beam (16) is adjusted by a support column (11) and a jack (15); A plurality of layers of upward-inclined water guide holes (22) are drilled on the side slope (3), and drainage pipes (28) are built in the upward-inclined water guide holes (22); a prefabricated assembled ecological drainage ditch (1) is located at the top of the side slope (3), and green plants (2) are planted along the longitudinal direction of the side slope (3) through a grass-planted ecological drainage ditch (24); an embedded drainage ditch (23) is provided at the bottom of the side slope (3); a permeable hose (36) is provided in the grass-planted ecological drainage ditch (24), and two ends of the permeable hose (36) are respectively connected to the prefabricated assembled ecological drainage ditch (1) and the embedded drainage ditch (23).

2. The inclined hole group decompression water diversion-surface interception combined slope drainage system according to claim 1 is characterized in that A construction platform is provided at the bottom of the slope (3), and an assembled scaffold (5) is placed on the construction platform; a plurality of anchor rods (4) are installed through holes drilled in the slope (3), and a plurality of layers of assembled scaffolds (5) are installed layer by layer from the bottom of the slope to the top of the slope, wherein the assembled scaffold (5) is fixedly connected to the anchor rods (4), and two adjacent layers of assembled scaffolds (5) are fixedly connected by bolts, and a steel pad (8) is welded to the contact portion between the assembled scaffold (5) at the bottom layer and the construction platform.

3. The slope drainage system of inclined hole group decompression water diversion and surface interception combined with water diversion according to claim 1 is characterized in that The drilling machine complete set (6) comprises a drill rod guide control device (9), a hinge shaft (10), a support base (12), an I-shaped slide rail (14), an adjustable guide rail crossbeam (16), a chain (17), a drilling machine (18) and a drill rod (19); wherein the I-shaped slide rail (14) is fixed to the assembled scaffold (5) by a screw rod (13), the support base (12) is installed on the upper part of the I-shaped slide rail (14), wherein the support base (12) is 2) sliding on an I-shaped slide rail (14); a support column (11) and a jack (15) are arranged on the support base (12); the top of the support column (11) and the jack (15) support an adjustable guide rail beam (16) through a hinge shaft (10), wherein the elevation angle of the adjustable guide rail beam (16) changes when the jack (15) is raised or lowered; a guide rail (20) is arranged on the upper part of the adjustable guide rail beam (16), and a groove (21) is arranged on the lower part A drill rod guide control device (9) is provided at the end of the adjustable guide rail cross beam (16), and the drill rod guide control device (9) is welded by a ring and a steel plate, wherein a drilling machine (18) moves on the guide rail (20) through a chain (17), and a drill rod (19) is inserted into the drill rod guide control device (9), and the drilling angle of the drill rod (19) is the same as the elevation angle of the adjustable guide rail cross beam (16); a plurality of upward-inclined water guide holes (22) are drilled on the surface of the slope (3) The upward-inclined water guide hole (22) is provided with a drainage pipe (28), wherein the drainage pipe (28) comprises a water-permeable hole (25), a geotextile (26), a tie wire (27) and an anti-backflow one-way plastic plate (29); the bottom of the drainage pipe (28) is provided with a water-permeable hole (25) and is wrapped with a geotextile (26); the geotextile (26) is fixed with a tie wire (27); and an anti-backflow one-way plastic plate (29) is provided on the drainage pipe (28) and is fixed with a tie wire (27).

4. The inclined hole group decompression water diversion-surface interception combined slope drainage system according to claim 1 is characterized in that: The prefabricated ecological drainage ditch (1) is in an inverted T-shaped shape; a cushion layer (33) is arranged at the bottom of the prefabricated ecological drainage ditch (1), a prefabricated drainage ditch (30) is installed on the upper part of the cushion layer (33), a reserved hole (32) and a quick installation docking notch are arranged on the prefabricated drainage ditch (30), and a drainage pipe (39) is connected to the reserved hole (32); planting soil (31) is backfilled on both sides of the top of the prefabricated drainage ditch (30), and green plants (2) are planted in the planting soil (31); the grass-planted ecological drainage ditch (24) is in an inverted T-shaped shape, and a geotextile (26), a large-size crushed stone layer (35), and a small-size crushed stone layer (36) are arranged in sequence on the bottom of the grass-planted ecological drainage ditch (24). A layer (34) and planting soil (31), wherein a permeable hose (36) is arranged in the large-size crushed stone layer (35), and green plants (2) are planted in the planting soil (31); a cushion layer (33) is arranged at the bottom of the buried drainage ditch (23), a prefabricated drainage ditch (30) is installed on the upper part of the cushion layer (33), an embedded prefabricated cover plate (37) is installed on the top of the prefabricated drainage ditch (30), a drainage pipe (39) is also connected to the bottom of the prefabricated drainage ditch (30), and a drainage hole (38) is arranged on the embedded prefabricated cover plate (37); the permeable hose (36) is connected to the drainage pipe (39) on the prefabricated assembled ecological drainage ditch (1) and the buried drainage ditch (23).

5. The construction method of the inclined hole group decompression water diversion-surface interception combined slope drainage system as described in any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Anchor bolt construction: drilling holes on the slope (3) and installing anchor bolts (4); Step 2: Installation of prefabricated scaffolding: Repair the bottom of the slope (3) into a construction platform, and install prefabricated scaffolding (5) layer by layer from the bottom of the slope to the top of the slope on the construction platform. Step 3: Construction of the upward-inclined water guide hole: installing a complete set of drilling equipment (6) on the assembled scaffold (5); constructing the upward-inclined water guide hole (22) and inserting a drainage pipe (28) by using the complete set of drilling equipment (6); Step 4: Construction of prefabricated ecological drainage ditch: a prefabricated ecological drainage ditch (1) is set on the top of the slope (3), drainage pipes (39) are installed on the sides of the prefabricated ecological drainage ditch (1), and green plants (2) are planted on both sides of the top; Step 5: Construction of a grass-planted ecological drainage ditch: a grass-planted ecological drainage ditch (24) is arranged longitudinally along the slope (3), and a water-permeable hose (36) is built in, and green plants (2) are planted in the planting soil (31); Step 6: Construction of buried drainage ditch: A buried drainage ditch (23) is set at the bottom of the slope (3), and the two ends of the permeable hose (36) in the grass-planted ecological drainage ditch (24) are respectively connected to the prefabricated assembled ecological drainage ditch (1) and the buried drainage ditch (23), forming a surface interception drainage + longitudinal and transverse drainage system.

6. The construction method of the upward inclined hole group decompression water diversion-surface interception combined slope drainage system according to claim 5 is characterized in that: In step 2, the assembled scaffold (5) is fixedly connected to the anchor rod (4), and in the two adjacent layers of assembled scaffold (5), the assembled scaffold (5) of the upper layer is placed on the assembled scaffold (5) of the lower layer and fixedly connected by bolts, and a steel pad (8) is welded at the contact part between the assembled scaffold (5) of the bottom layer and the construction platform.

7. The construction method of the inclined hole group decompression water diversion-surface interception combined slope drainage system according to claim 5 is characterized in that: In step 4: the support base (12) slides on the I-shaped slide rail (14); the elevation angle of the adjustable guide rail beam (16) is adjusted on the support base (12) by a jack (15); the drilling machine (18) moves on the adjustable guide rail beam (16), and the drill rod (19) is inserted into the drill rod guide control device (9); the elevation angle of the adjustable guide rail beam (16) is adjusted by the jack (15), and then the drilling angle of the drill rod (19) is adjusted to perform drilling construction of the inclined water guide hole (22); The seepage drainage pipe (28) comprises a water permeable hole (25), a geotextile (26), a tie wire (27) and an anti-backflow unidirectional plastic plate (29). The water permeable hole (25) is arranged at the bottom of the seepage drainage pipe (28) and is wrapped with a geotextile (26). The geotextile (26) is fixed with a tie wire (27). An anti-backflow unidirectional plastic plate (29) is arranged on the seepage drainage pipe (28) 50 cm away from the hole position of the upward inclined water guide hole (22) and is fixed with a tie wire (27).

8. The construction method of the upward inclined hole group decompression water diversion-surface interception combined slope drainage system according to claim 5 is characterized in that: In step six: a cushion layer (33) is provided at the bottom of the buried drainage ditch (23), a prefabricated drainage ditch (30) is installed on the cushion layer (33), an embedded prefabricated cover plate (37) is installed on the top of the prefabricated drainage ditch (30), and a drainage hole (38) is provided on the embedded prefabricated cover plate (37).

Images