A ground hardening system for the slope section of the return air lane

Abstract

The invention discloses a ground hardening system for the slope section of a return air lane, which consists of a plurality of hardening units, each of which is connected to each other in sequence and arranged along the direction of the lane slope, the lower end and lower side of each hardening unit are fixed on the slope ground, and the upper end and upper side thereof are used for pedestrians to pass through, so as to avoid slipping when walking on the slope, thereby causing accidental injury to pedestrians; the inclination angle of the slope section of the return air lane is 5-25 degrees, and each hardening unit comprises: a front hardening rod, a rear hardening rod, a plurality of hardening cross rods, which are perpendicular to the direction of the front hardening rod and the rear hardening rod, and the two ends of the hardening units are respectively welded to the front hardening rod and the rear hardening rod, and a plurality of prefabricated hardening blocks are respectively located in each accommodating cavity, so as to harden the bottom of the lane slope and fill the accommodating cavity so that pedestrians can walk back and forth thereon; the invention has low workload, low labor consumption, fast construction progress, and the components are prefabricated, which can be prefabricated on the ground in advance, thereby improving the construction progress.

Description

Technical Field

[0001] The invention belongs to the field of hardening the slope section of a return air lane, and in particular relates to a ground hardening system for the slope section of a return air lane. Background Art

[0002] The slope of the north wing return air lane is 160 meters long, 5.5 meters wide and 4.3 meters high, with straight walls and semicircular arches. The upper half of the slope is supported by a scaffolding, with a length of 60 meters, and the lower half is supported by anchor net beams, with a length of 100 meters. The slope slopes down at 15° to the bottom of the slope, and the bottom plate is a hard rock bottom. After the slope construction is completed, personnel walk on the slope and transport materials. Since the slope has no steps, personnel are prone to slipping when walking, especially after the floor is wet and slippery, it is easier for people to slip when carrying materials on the slope, resulting in injuries. Therefore, according to the design requirements, cement steps are constructed on the slope section. Due to the large amount of material unloading and the long construction time, it is impossible to dispatch more personnel to construct the slope cement steps while ensuring the excavation of the two heads. Summary of the invention

[0003] The purpose of the present invention is to provide a ground hardening system for the slope section of the return air lane to solve the problems of long normal construction time, large amount of materials, poor integrity and non-reusability of the slope section of the return air lane with a small slope.

[0004] The present invention adopts the following technical scheme: a ground hardening system for the slope section of the return air lane, which is composed of a plurality of hardening units, each of which is connected to each other in sequence and arranged along the slope direction of the lane, the lower side of the lower end of each hardening unit is fixed on the slope ground, and the upper side of the upper end is used for pedestrians to pass through, so as to avoid slipping when walking on the slope, thereby causing accidental injuries to pedestrians; the inclination angle of the slope section of the return air lane is 5-25 degrees,

[0005] Each hardening unit includes:

[0006] The front hardened rod is set along the slope of the roadway.

[0007] The rear hardening rod is set along the slope of the roadway, opposite to and parallel to the front hardening rod.

[0008] Multiple hardened cross bars are perpendicular to the direction of the front hardened bar and the rear hardened bar, and the two ends of the hardened cross bars are respectively welded to the front hardened bar and the rear hardened bar. The hardened cross bars are evenly arranged in sequence along the slope direction of the laneway. Two adjacent hardened cross bars cooperate with the front hardened bar and the rear hardened bar to form multiple accommodating cavities. The multiple accommodating cavities are evenly arranged along the slope direction of the laneway.

[0009] A plurality of prefabricated hardened blocks are respectively located in each receiving cavity and are used to harden the bottom of the lane slope and fill the receiving cavity so that pedestrians can walk back and forth on it.

[0010] Furthermore, it also includes:

[0011] Two front baffle rings are fixed at both ends of the front hardened rod. Front flanges are sleeved on the front hardened rod and inside the two front baffle rings to fix the front flanges when the front hardened rods of two adjacent hardened units are connected through the front flanges.

[0012] Two rear retaining rings are fixed at both ends of the rear hardening rod. A rear flange is sleeved on the rear hardening rod and the inner side of the two rear retaining rings, which is used to fix the rear flange when the rear hardening rods of two adjacent hardening units are connected through the rear flange, thereby forming a strip-shaped hardening system.

[0013] Furthermore, it also includes:

[0014] Four sloped card-in plates are located between the sloped ground of the return air duct and the hardening unit, and are respectively fixed on the lower sides of the two ends of the front hardening rod and the rear hardening rod. Their directions are perpendicular to the front hardening rod and the rear hardening rod. They are used to extend into the sloped ground to fix the hardening unit.

[0015] Furthermore, the construction method thereof consists of the following steps:

[0016] The method of making hardened units on the ground is:

[0017] Step 101: Place the front hardening rod and the rear hardening rod opposite and parallel to each other.

[0018] Step 102: welding a plurality of hardened cross bars to the front hardened bar and the rear hardened bar in sequence from one end of the front hardened bar and the rear hardened bar, so that the plurality of hardened cross bars are evenly distributed between the front hardened bar and the rear hardened bar, so that the plurality of hardened cross bars cooperate with the front hardened bar and the rear hardened bar to form a plurality of accommodating cavities, and the distance between the hardened cross bars near the two ends of the front hardened bar and the rear hardened bar and the end is equal to half of the distance between the two hardened cross bars,

[0019] Step 103: Two front flanges are sleeved on both ends of the front hardened rod, and two rear flanges are sleeved on both ends of the rear hardened rod.

[0020] Step 104: Weld two front baffle rings at both ends of the front hardened rod, and weld two rear baffle rings at both ends of the rear hardened rod.

[0021] Step 105: Welding sloped clamping plates to the lower sides of both ends of the front hardening rod and the rear hardening rod to obtain a hardening unit;

[0022] The method of making prefabricated hardened blocks on the ground is:

[0023] Step 201: Use a wooden board to make a mold with a wedge-shaped inner cavity. The wedge is a hexahedron, the bottom surface of which is horizontally arranged, the top surface of which is inclined, the angle between the top surface and the bottom surface is equal to the inclination angle of the slope, and the side surfaces are perpendicular to the bottom surface.

[0024] Step 202: Filling the mold with concrete to obtain a prefabricated hardened block;

[0025] The method for preparing the ground hardening system underground is:

[0026] Step 301: Arrange the hardening units in sequence along the direction of the slope of the return air lane, so that the slope clamping plate is inserted into the slope ground for fixing.

[0027] Step 302: Connect the front flanges corresponding to two adjacent hardening units to each other through bolts, and connect the rear flanges corresponding to two adjacent hardening units to each other through bolts, so that a combined cavity is formed between the ends of the two adjacent hardening units, and a plurality of hardening units in a strip shape are obtained.

[0028] Step 303: Place the prefabricated hardened blocks at the center of the receiving cavity and the combined cavity respectively. When placing the prefabricated hardened blocks, the inclination direction of the top surface is the same as the inclination direction of the slope, and the right angle side faces the uphill side.

[0029] Step 304: Use concrete to fill the gaps between the prefabricated hardened blocks and the hardened cross bars, front hardened bars, and rear hardened bars on both sides, so that the accommodating cavity and the combined cavity are filled, and after solidification, a ground hardening system is obtained.

[0030] The beneficial effects of the present invention are:

[0031] 1. The present invention has less workload, less labor, fast construction progress, and the components are prefabricated, which can be prefabricated on the ground first, thus improving the construction progress;

[0032] 2. The hardening system of the present invention is an integral whole, and compared with the normal steps cast with concrete, it has good integrity. In addition, since the prefabricated hardening block is surrounded by the front hardening rod, the rear hardening rod and the hardening cross bar, the prefabricated hardening block is enclosed by the front hardening rod, the rear hardening rod and the hardening cross bar, which is more solid and safer.

[0033] 3. The present invention can replace the normal steps cast with concrete, thereby ensuring the safety of workers walking on the slope. When workers walk and carry materials, they are not easy to slip, thus ensuring the construction safety of workers, and maintaining a straight line from top to bottom, which promotes the standardization of production safety on site;

[0034] 4. The various components of the present invention can be reused. After completing their mission in a certain slope section, they can be installed in other lanes for reuse, simply by replacing prefabricated hardened blocks with different slopes;

[0035] 5. The present invention is simple to construct and can quickly form steps. Compared with normal steps cast with concrete, the normal steps cast with concrete use a large amount of materials and a long construction time. The present invention uses a small amount of materials, and based on the 8-hour working time per shift, only 3 people are needed for each shift, and the construction can be completed using 3 shifts, saving materials and labor, and saving construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the prefabricated hardened block of the present invention.

[0038] Among them: 1. front hardened rod; 2. rear hardened rod; 3. hardened cross bar; 4. prefabricated hardened block; 5. front baffle ring; 6. rear baffle ring; 7. ramp card plate. DETAILED DESCRIPTION

[0039] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The "direction" in the present invention is based on the present invention being in Figure 1 Description of the direction when.

[0042] The present invention discloses a ground hardening system for the slope section of a return air lane, such as Figure 1 and Figure 2 As shown, it is composed of multiple hardened units, each of which is connected to each other in sequence and arranged along the slope of the lane. The lower side of each hardened unit is fixed on the slope ground, and the upper side of each hardened unit is used for pedestrians to pass through to avoid slipping when walking on the slope, thereby causing accidental injury to pedestrians. The inclination angle of the slope section of the return air lane is 5-25 degrees.

[0043] Generally, the hardening system of the present invention can be laid in a roadway with a slope between 5 and 25 degrees, but it is not suitable to be laid on a slope greater than 25 degrees, because the height of each step is relatively small for a slope with a smaller slope, and the height of each step is increased when the slope is greater than 25 degrees, which makes it difficult to form steps during pouring.

[0044] Each hardening unit includes: a front hardening rod 1, a rear hardening rod 2, a plurality of hardening cross bars 3, and a plurality of prefabricated hardening blocks 4.

[0045] The front hardened rod 1 is arranged along the slope of the tunnel, and the rear hardened rod 2 is arranged along the slope of the tunnel. The rear hardened rod 2 is opposite to and parallel to the front hardened rod 1, and a plurality of hardened cross bars 3 are perpendicular to the directions of the front hardened rod 1 and the rear hardened rod 2.

[0046] Both ends of multiple hardened cross bars 3 are welded to the front hardened bar 1 and the rear hardened bar 2 respectively, and each hardened cross bar 3 is evenly arranged in sequence along the slope of the tunnel. Two adjacent hardened cross bars 3 cooperate with the front hardened bar 1 and the rear hardened bar 2 to form a receiving cavity, and multiple receiving cavities are evenly arranged along the slope of the tunnel.

[0047] A plurality of prefabricated hardened blocks 4 are respectively located in each accommodating cavity. The plurality of prefabricated hardened blocks 4 are used to harden the bottom of the lane slope and fill the accommodating cavity so that pedestrians can walk back and forth on it.

[0048] Each hardening unit also includes: two front stop rings 5 ​​and two rear stop rings 6. The two front stop rings 5 ​​are fixed at both ends of the front hardening rod 1. A front flange is provided on the front hardening rod 1 and on the inner side of the two front stop rings 5. The two front stop rings 5 ​​are used to fix the front flange when the front hardening rods 1 of two adjacent hardening units are connected through the front flange.

[0049] Two rear retaining rings 6 are fixed at both ends of the rear hardening rod 2. A rear flange is sleeved on the inner side of the two rear retaining rings 6 on the rear hardening rod 2. The two rear retaining rings 6 are used to fix the rear flange when the rear hardening rods 2 of two adjacent hardening units are connected through the rear flange, thereby forming a strip-shaped hardening system.

[0050] Each hardening unit also includes: four sloped snap-in plates 7, the four sloped snap-in plates 7 are located between the sloped ground of the return air duct and the hardening unit, the four sloped snap-in plates 7 are respectively fixed to the lower sides of both ends of the front hardening rod 1 and the rear hardening rod 2, the directions of the four sloped snap-in plates 7 are perpendicular to the front hardening rod 1 and the rear hardening rod 2, and the four sloped snap-in plates 7 are used to extend into the sloped ground to fix the hardening unit.

[0051] The present invention also discloses a construction method for a ground hardening system for a slope section of a return air lane, which comprises the following steps:

[0052] The method of making hardened units on the ground is:

[0053] Step 101: Place the front hardening rod 1 and the rear hardening rod 2 opposite to each other and in parallel.

[0054] Step 102: weld a plurality of hardened cross bars 3 to the front hardened bar 1 and the rear hardened bar 2 in sequence from one end of the front hardened bar 1 and the rear hardened bar 2, so that the plurality of hardened cross bars 3 are evenly distributed between the front hardened bar 1 and the rear hardened bar 2, so that the plurality of hardened cross bars 3 cooperate with the front hardened bar 1 and the rear hardened bar 2 to form a plurality of accommodating cavities, and the distance between the hardened cross bars 3 near the two ends of the front hardened bar 1 and the rear hardened bar 2 and the end is equal to half of the distance between the two hardened cross bars 3,

[0055] Step 103: Two front flanges are sleeved on both ends of the front hardening rod 1, and two rear flanges are sleeved on both ends of the rear hardening rod 2.

[0056] Step 104: Weld two front baffle rings 5 ​​at both ends of the front hardening rod 1, and weld two rear baffle rings 6 at both ends of the rear hardening rod 2.

[0057] Step 105: Welding sloped clamping plates 7 to the lower sides of both ends of the front hardening rod 1 and the rear hardening rod 2 to obtain a hardening unit;

[0058] The method for making the prefabricated hardened block 4 on the ground is:

[0059] Step 201: Use a wooden board to make a mold with a wedge-shaped inner cavity. The wedge is a hexahedron. The bottom surface of the mold is horizontally set, and the top surface of the mold is inclined. The angle between the top surface and the bottom surface of the mold is equal to the inclination angle of the slope. The sides of the mold are perpendicular to the bottom surface.

[0060] Step 202: Fill the mold with concrete to obtain a prefabricated hardened block 4;

[0061] The method for preparing the ground hardening system underground is:

[0062] Step 301: Arrange the hardening units in sequence along the slope of the return air lane, so that the slope clamping plate 7 is inserted into the slope ground for fixing.

[0063] Step 302: Connect the front flanges corresponding to two adjacent hardening units to each other through bolts, and connect the rear flanges corresponding to two adjacent hardening units to each other through bolts, so that a combined cavity is formed between the ends of the two adjacent hardening units, and a plurality of hardening units in a strip shape are obtained.

[0064] Step 303: Place the prefabricated hardened block 4 at the center of the receiving cavity and the combined cavity respectively. When placing the prefabricated hardened block 4, the inclination direction of the top surface of the prefabricated hardened block 4 is the same as the inclination direction of the slope.

[0065] Step 304: Use concrete to fill the gaps between the prefabricated hardened block 4 and the hardened cross bars 3 on both sides, the front hardened bars 1, and the rear hardened bars 2, so that the accommodating cavity and the combined cavity are filled, and after solidification, a ground hardening system is obtained.

[0066] Example 1

[0067] The slope under the north return platform of a mine in Hancheng is prone to slipping and difficult to walk on. The existing technology is to directly use concrete for pouring, which has the problems of long construction time, high cost and inability to be reused.

[0068] According to the present invention, waste two-inch pipes are used to process hardening units on the ground. The front hardening rod 1 and the rear hardening rod 2 of each hardening unit are 3 meters long, the front hardening rod 1 and the rear hardening rod 2 are 0.7 meters apart, and the distance between the two hardening cross bars 3 is 0.4 meters. A total of 53 hardening units are processed. The hardening units are laid along the slope from the north return platform to the bottom of the slope, and then the prefabricated hardening blocks 4 prepared by using two-four materials are placed in the receiving cavity and the combined cavity, and then the gaps between the prefabricated hardening blocks 4 and the hardening cross bars 3 on both sides, the front hardening rod 1, and the rear hardening rod 2 are filled with concrete to form steps. This saves construction time and labor unloading costs, and can be reused.

[0069] This embodiment saves 8 unloading workers' wages totaling 2,400 yuan, and saves 3.68 cubic meters of casting materials totaling 1,542 yuan. The reuse is calculated twice, saving a total of 7,884 yuan in manpower and material costs. Therefore, the method of the present invention is convenient and fast, has been used in the slope of the south return air lane, and is currently being constructed in the slope of the north return air lane.

[0070] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ground hardening system for the slope section of a return air lane, characterized in that: It is composed of multiple hardening units, each of which is connected to each other in sequence and arranged along the slope of the lane. The lower side of each hardening unit is fixed on the slope ground, and the upper side is used for pedestrians to pass through to avoid slipping when walking on the slope, thereby causing accidental injuries to pedestrians; the inclination angle of the slope section of the return air lane is 5-25 degrees, Each of the hardening units comprises: The front hardened rod (1) is set along the slope of the roadway. The rear hardening rod (2) is arranged along the slope of the roadway, opposite to and parallel to the front hardening rod (1). A plurality of hardened cross bars (3) are perpendicular to the direction of the front hardened bar (1) and the rear hardened bar (2), and the two ends of the hardened cross bars (3) are respectively welded to the front hardened bar (1) and the rear hardened bar (2). The hardened cross bars (3) are arranged uniformly in sequence along the direction of the lane slope. Two adjacent hardened cross bars (3) cooperate with the front hardened bar (1) and the rear hardened bar (2) to form a receiving cavity. The plurality of receiving cavities are evenly arranged along the direction of the lane slope. A plurality of prefabricated hardened blocks (4) are respectively located in each receiving cavity and are used to harden the bottom of the roadway slope and fill the receiving cavity so that pedestrians can walk back and forth on it; Also includes: Two front baffle rings (5) are fixed at both ends of the front hardening rod (1), and front flanges are sleeved on the inner sides of the two front baffle rings (5) on the front hardening rod (1) for fixing the front flanges when the front hardening rods (1) of two adjacent hardening units are connected via the front flanges. Two rear baffle rings (6) are fixed at both ends of the rear hardening rod (2), and rear flanges are sleeved on the rear hardening rod (2) and the inner sides of the two rear baffle rings (6), so as to fix the rear flanges when the rear hardening rods (2) of two adjacent hardening units are connected via the rear flanges, thereby forming a strip-shaped hardening system; Also includes: Four sloped snap-in plates (7) are located between the sloped ground of the return air lane and the hardening unit, and are respectively fixed to the lower sides of both ends of the front hardening rod (1) and the rear hardening rod (2). The four sloped snap-in plates (7) are perpendicular to the front hardening rod (1) and the rear hardening rod (2) and are used to extend into the sloped ground to fix the hardening unit.

2. A ground hardening system for the slope section of a return airway according to claim 1, characterized in that: The construction method consists of the following steps: The method of making hardened units on the ground is: Step 101: Place the front hardening rod (1) and the rear hardening rod (2) opposite to each other and in parallel. Step 102: A plurality of hardened cross bars (3) are sequentially welded to the front hardened rod (1) and the rear hardened rod (2) from one end of the front hardened rod (1) and the rear hardened rod (2), so that the plurality of hardened cross bars (3) are evenly distributed between the front hardened rod (1) and the rear hardened rod (2), so that the plurality of hardened cross bars (3) cooperate with the front hardened rod (1) and the rear hardened rod (2) to form a plurality of accommodating cavities, and the distance between the hardened cross bars (3) near the two ends of the front hardened rod (1) and the rear hardened rod (2) and the end is equal to half the distance between the two hardened cross bars (3). Step 103: Two front flanges are sleeved on both ends of the front hardened rod (1), and two rear flanges are sleeved on both ends of the rear hardened rod (2). Step 104: Weld two front baffle rings (5) at both ends of the front hardening rod (1), and weld two rear baffle rings (6) at both ends of the rear hardening rod (2). Step 105: Welding sloped snap-in plates (7) to the lower sides of both ends of the front hardening rod (1) and the rear hardening rod (2) to obtain a hardening unit; The method for making the prefabricated hardened block (4) on the ground is: Step 201: Use a wooden board to make a mold with a wedge-shaped inner cavity. The wedge is a hexahedron, the bottom surface of which is horizontally arranged, the top surface of which is inclined, the angle between the top surface and the bottom surface is equal to the inclination angle of the slope, and the side surfaces are perpendicular to the bottom surface. Step 202: Fill the mold with concrete to obtain a prefabricated hardened block (4); The method for preparing the ground hardening system underground is: Step 301: Arrange the hardening units in sequence along the slope of the return air channel so that the slope clamping plate (7) is inserted into the slope ground for fixation. Step 302: Connect the front flanges corresponding to two adjacent hardening units to each other through bolts, and connect the rear flanges corresponding to two adjacent hardening units to each other through bolts, so that a combined cavity is formed between the ends of the two adjacent hardening units, and a plurality of hardening units in a strip shape are obtained. Step 303: Place the prefabricated hardened block (4) at the center of the receiving cavity and the combined cavity respectively. When placing the prefabricated hardened block (4), the inclination direction of its top surface is the same as the inclination direction of the slope. Step 304: Use concrete to fill the gaps between the prefabricated hardened block (4) and the hardened cross bars (3) on both sides, the front hardened bars (1), and the rear hardened bars (2), so that the accommodating cavity and the combined cavity are filled, and after solidification, a ground hardening system is obtained.

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