Artificial slope excavation arrangement structure adopting inclined shaft deslagging

Abstract

The utility model relates to an artificial slope excavation arrangement structure adopting an inclined shaft for deslagging, and the artificial slope excavation arrangement structure is used for carrying out deslagging on slag bodies when excavation is carried out on a natural slope and an artificial excavation slope is formed, the artificial slope excavation arrangement structure comprises an initial platform, a deslagging adit and a deslagging inclined shaft, the initial platform is arranged at the top of the natural slope, and the deslagging adit is arranged at the bottom of the natural slope; the initial platform conducts excavation and deslagging through a construction channel built on the slope top, and the initial platform can serve as an equipment place of a wind-water-power system excavated on the multi-stage slope on the lower portion of the initial platform. The deslagging adit is arranged on a bottom platform at the bottom of the natural slope, and the deslagging adit is provided with a slag outlet; the deslagging inclined shaft is arranged between the natural side slope and the preformed manually excavated side slope, is inclined to the direction of the horizontal plane, and is communicated with the initial platform and the deslagging adit. According to the artificial slope excavation arrangement structure, the problem that external slag overflows during slope excavation and the problem that a slag discharging channel is built on a natural slope can be effectively solved, and the construction safety risk of a high and steep slope is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of slope construction, and in particular to an artificial slope excavation arrangement structure using inclined shaft slag discharge. Background Art

[0002] When excavating a slope, it is necessary to build a slag discharge road. Generally, according to the terrain, geological conditions of the natural slope and the excavation shape of the permanent slope, multiple channels are planned to lead to the excavation working face. However, this traditional construction plan has the following problems: ① The construction of a slag discharge channel on a natural slope generally requires relatively good geological conditions, the stability of the temporary road meets the safety requirements for heavy-loaded vehicles, and the construction process of the temporary road will not cause stability problems on a large range of natural slopes. Otherwise, there will not only be construction safety risks, but the corresponding engineering management work volume and investment will also become important factors restricting the establishment of the construction plan; ② In the construction plan of building a slag discharge channel on a natural slope, the rock and soil outside the slope will have a certain amount of slag overflow during the blasting process, resulting in slope slag hanging and soil erosion, and it is difficult to block the slag outside the slope. Utility Model Content

[0003] A first aspect of an embodiment of the present application provides an artificial slope excavation arrangement structure using an inclined shaft for slag discharge, which can effectively avoid the problem of external slag overflow during slope excavation and reduce the construction safety risks of high and steep slopes.

[0004] The artificial slope excavation arrangement structure using inclined shaft slag discharge provided in the first aspect of the embodiment of the present application is used to discharge slag when excavating on a natural slope and forming an artificial excavation slope, specifically including:

[0005] An initial platform, which is arranged at the top of the natural slope, is excavated and slag is discharged through a construction channel built on the top of the slope, and can serve as an equipment site for the wind, water and electricity system of the multi-level slope excavation below it;

[0006] A slag discharge flat tunnel, which is arranged on a bottom platform at the bottom of the natural slope and has a slag discharge port;

[0007] A slag discharge inclined shaft is arranged between the natural slope and the pre-formed artificial excavation slope, the slag discharge inclined shaft is inclined in the direction of the horizontal plane, and the slag discharge inclined shaft is connected to the initial platform and the slag discharge flat tunnel.

[0008] In addition, the artificial slope excavation arrangement structure provided in the embodiment of the present application may also have the following additional technical features:

[0009] In an optional scheme, the slope of the slag discharge inclined shaft is not less than 50°, and the diameter of the slag discharge inclined shaft is not less than 5m; when there is a height difference between the slag discharge port of the slag discharge tunnel and the bottom platform, the slag discharge tunnel has a slope surface, and the slope of the slope surface is not greater than 6%.

[0010] In an optional solution, a slag collecting area is provided at the connection portion between the slag discharge tunnel and the slag discharge inclined shaft, and the slag collecting area is formed by expanding and excavating the slag discharge tunnel and / or the slag discharge inclined shaft.

[0011] In an optional scheme, a transport tunnel is arranged between the initial platform and the slag discharge tunnel, the transport tunnel is staggered with the slag discharge inclined shaft, and the artificially excavated slope is preset with a slope horseway at the position of the transport tunnel, and the width of the slope horseway is not less than 5m.

[0012] In an optional scheme, the slag discharge inclined shaft is preferentially located in the middle position of the plane and the vertical surface of the natural slope excavation area, and there is a preset distance between the slag discharge inclined shaft and the artificially excavated slope. However, due to the depth of the excavation surface or the poor quality of the external rock mass, the slag discharge inclined shaft is close to the artificially excavated slope.

[0013] In an optional solution, protective barrier facilities are arranged around the slag discharge inclined shaft, and the protective barrier facilities include anti-collision piers, dispersed slag discharge ports and railings, and the height of the anti-collision piers is 40 to 50 cm.

[0014] A second aspect of the present application provides an artificial slope construction method, wherein the artificial slope construction method adopts the artificial slope excavation arrangement structure in the first aspect of the embodiment for construction, and the construction method comprises the following steps:

[0015] 1) Entering the top of the excavation area of ​​the natural slope through the temporary construction road at the top, excavating and supporting the first level of artificial excavation slope to form an initial platform;

[0016] 2) Preset the location of the slag discharge inclined shaft, build the slag discharge flat tunnel at the bottom of the artificially excavated slope to the intersection with the preset slag discharge inclined shaft, and appropriately expand the intersection area to form a slag collection area;

[0017] 3) constructing a pilot well of the slag discharge inclined well by using a reverse drilling method, and then forming a slag discharge inclined well by expanding excavation;

[0018] 4) Starting from the initial platform at the top, the slope is excavated step by step, and protective barrier facilities are built around the slag discharge inclined shaft, the protective barrier facilities include anti-collision piers, dispersed slag discharge ports and railings;

[0019] 5) Complete the excavation and support construction of the artificially excavated slope, and seal or reinforce the opening of the slag discharge tunnel as needed.

[0020] In an optional solution, in step 3), the following steps are included when constructing the slag discharge inclined shaft:

[0021] According to the length of the slag discharge inclined shaft, a matching directional drilling equipment is selected, a reverse drill directional hole is drilled from the initial platform to the slag discharge flat tunnel, a reverse drill is installed, and a pilot shaft is drilled upward from the slag discharge flat tunnel to the initial platform, and then layered blasting excavation is started from the initial platform to expand the pilot shaft into the slag discharge inclined shaft, the slag falls to the slag collecting area of ​​the slag discharge flat tunnel at the bottom, and the slag is discharged through the slag discharge flat tunnel.

[0022] In an optional solution, in step 4), the following steps are included when excavating the slope step by step:

[0023] When excavating the slope, each level of the slope is excavated in layers and zones, and the excavation depth of each layer is controlled at 3 to 5 meters. The excavation is carried out in zones spreading outward with the slag discharge inclined shaft as the center. The slag body falls through the slag discharge inclined shaft to the slag collection area of ​​the slag discharge flat tunnel, and the slag is discharged through the slag discharge flat tunnel;

[0024] When the excavation plane is small, loaders and excavators can be used directly to transport the slag. If the distance exceeds the economic transportation distance of loaders and excavators, loaders should be used for transportation.

[0025] In an optional solution, the step-by-step excavation of the slope also includes the construction of a transport tunnel, and the construction of the transport tunnel includes the following steps:

[0026] When the geological conditions are Class II surrounding rock, the transport tunnel is directly built to the slope excavation surface of the artificial excavation slope; when the geological conditions are surrounding rock below Class II, the transport tunnel is built to about 5m away from the slope excavation surface of the artificial excavation slope, and a rock plug is formed. After the slope is excavated to this level platform, the slope support and tunnel entrance pre-support are completed, and the rock plug is blasted to penetrate the transport tunnel;

[0027] After the artificially excavated slope is excavated to the platform where the transport tunnel is located and the transport tunnel is penetrated, the construction equipment resources are deployed through the transport tunnel, and the wind, water and electricity equipment are transported to this level platform to continue excavating the slope below.

[0028] The beneficial effects of the embodiments of the present application are:

[0029] The artificial slope excavation arrangement structure in the embodiment of the present application utilizes a slag discharge inclined shaft for slag discharge, avoiding the problem of building multi-level slag discharge channels on the slope. Especially for high and steep natural slopes, after the excavation of the artificial slope is completed, the slag discharge flat tunnel can be designed in a permanent and temporary combination according to the functional requirements of the project. The construction cost of the slag discharge inclined shaft is lower than that of multi-level, long-distance external transportation roads. Therefore, when both the natural slope and the artificial slope are steep, this construction plan is conducive to saving investment. In addition, when the designated stacking point of the slag body is located near the lowest platform of the slope, the transportation path can be effectively shortened and the transportation cost can be reduced. The artificial slope construction method in the embodiment of the present application has a simple construction organization and can effectively reduce the construction safety risks of high and steep slopes.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the planar layout of the artificial slope excavation arrangement structure provided in the present application in one embodiment;

[0032] Figure 2 A schematic diagram of the entrance protection plan of the slag discharge inclined shaft provided for this application;

[0033] Figure 3 The expanded elevation view of the entrance protection of the slag discharge inclined shaft provided for this application;

[0034] Figure 4 A schematic diagram of excavation plane division during artificial slope excavation provided for this application.

[0035] Figure numerals: natural slope 1, artificial excavation slope 2, initial platform 3, bottom platform 4, slag discharge inclined shaft 5, slag discharge flat tunnel 6, transport flat tunnel 7, slag collection area 8, rock plug 9, crash barrier 10, railing 11.

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0037] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0038] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0039] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0040] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0041] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0042] like Figure 1-4 As shown, the first aspect of the embodiment of the present application provides an artificial slope excavation arrangement structure using an inclined shaft for slag discharge, which can effectively solve the problems of difficulty in building a construction road on a high and steep natural slope and great safety hazards, and is mainly used for slag discharge when excavating on a natural slope 1 and forming an artificial excavation slope 2. It specifically includes an initial platform 3, a slag discharge flat tunnel 6 and a slag discharge inclined shaft 5. The initial platform 3 is arranged at the top of the natural slope 1. The initial platform 3 is excavated and slag is discharged through a construction channel built on the top of the slope, and the initial platform 3 can be used as an equipment site for the wind, water and electricity system of the multi-level slope excavation below it; the slag discharge flat tunnel 6 is arranged at the bottom platform 4 at the bottom of the natural slope 1, and the slag discharge flat tunnel 6 has a slag discharge port; the slag discharge inclined shaft 5 is arranged between the natural slope 1 and the pre-formed artificial excavation slope 2, and the slag discharge inclined shaft 5 is inclined in the direction of the horizontal plane, and the slag discharge inclined shaft 5 connects the initial platform 3 and the slag discharge flat tunnel 6.

[0043] Specifically, the artificial slope excavation arrangement structure in this embodiment is to excavate the initial platform 3 at the top of the slope and build a slag discharge tunnel 6 near the platform 4 at the bottom of the slope before excavating the artificial excavation slope 2, and build a slag discharge inclined shaft within the slope excavation area according to the slope excavation slope. The slag discharge inclined shaft runs through the initial excavation platform and the slag discharge tunnel 6. The slope excavation slag below the initial platform 3 falls to the slag discharge tunnel 6 through the inclined shaft, and then the slag is transported to the designated location through the slag discharge tunnel 6. The slag discharge inclined shaft 5 is used for slag discharge, thereby avoiding the problem of building multiple slag discharge channels on the slope. Especially for high and steep natural slopes, after the excavation of the artificial slope is completed, the slag discharge tunnel 6 can be designed in combination with permanent and temporary according to the engineering function requirements. The construction cost of the slag discharge inclined shaft 5 is lower than that of multi-level, long-distance external transportation roads. Therefore, when both the natural slope and the artificial slope are high and steep, this construction plan is conducive to saving investment. In addition, when the designated stacking point of the slag is located near the lowest platform of the slope, the transportation route can be effectively shortened and the transportation cost can be reduced.

[0044] like Figure 1 As shown, in a specific embodiment, the slag discharge tunnel 6 is arranged near the bottom platform 4 of the slope excavation, the elevation of the part connected to the inclined shaft is the elevation of the platform after the slope excavation, the outlet is selected according to the surrounding terrain conditions, the slope is not steeper than 6%, the tunnel diameter meets the slag discharge requirements, and generally adopts a gate tunnel type of about 7m*8m; the inclined shaft is arranged within the excavation range of the slope, and in order to facilitate the falling of the slag body, the diameter is generally not less than 5m, and the slope is not less than 50°. The design of the slope excavation slope ratio takes into account the requirements of the inclined shaft arrangement while meeting the stability conditions.

[0045] In addition, according to the overall excavation height of the slope, a transport tunnel 7 is built between the initial platform 3 and the slag discharge tunnel 6, and the transport tunnel 7 is staggered with the slag discharge inclined shaft 5. Generally speaking, the transport tunnel 7 is built in the middle of the artificially excavated slope 2 to meet the equipment resource adjustment (generally increase) caused by the change of excavation range after the slope is excavated to a certain height. The corresponding slope horseway is widened to no less than 5m. The horseway is used as the equipment place of the wind, water and electricity system excavated below to avoid the reduction of efficiency and safety risks caused by the excessive length of the line.

[0046] like Figure 1 As shown, in a specific embodiment, a slag collecting area 8 is provided at the connection portion between the slag discharge tunnel 6 and the slag discharge inclined shaft 5, and the slag collecting area 8 is formed by expanding the slag discharge tunnel 6 and / or the slag discharge inclined shaft 5. When geological conditions permit, the slag discharge inclined shaft 5 is generally a certain distance away from the slope surface, which helps to improve the efficiency of slag discharge during the slope excavation process. From the perspective of optimal efficiency, the slag discharge inclined shaft 5 is located in the middle of the plane and the facade of the excavation area. Under special conditions, in order to reduce the size of the slope excavation, the slag discharge inclined shaft 5 can also be arranged close to the excavation surface.

[0047] like Figure 2-3 As shown, in a specific embodiment, protective barrier facilities are arranged around the slag discharge inclined shaft 5, and the protective barrier facilities include a crash pier 10, dispersed slag discharge ports and a railing 11, and the height of the crash pier 10 is 40 to 50 cm. The crash pier 10 and the railing 11 can ensure the safety during construction, and the dispersed multiple slag discharge ports can improve the slag discharge efficiency. Figure 4 As shown, when excavating each layer, the excavation can be divided into sections and spread outward with the slag discharge inclined shaft 55 as the center, thereby improving the excavation efficiency.

[0048] The second aspect of the embodiment of the present application provides an artificial slope construction method, which adopts the artificial slope excavation arrangement structure in the embodiment of the first aspect for construction, and the construction method comprises the following steps:

[0049] 1) Enter the top of the excavation area of ​​the natural slope 1 through the temporary construction road at the top, excavate and support the first level of artificial excavation slope 2, and form an initial platform 3.

[0050] 2) The position of the slag discharge inclined shaft 5 is preset, and a slag discharge flat tunnel 6 is constructed at the bottom of the artificially excavated slope 2 to the intersection with the preset slag discharge inclined shaft 5, and the intersection area is appropriately expanded to form a slag collection area 8.

[0051] 3) Use the reverse drilling method to construct the slag inclined shaft 5; select matching directional drilling equipment according to the length of the slag inclined shaft 5, drill a reverse drill directional hole from the initial platform 3 to the slag horizontal tunnel 6, install the reverse drill to drill a pilot shaft upward from the slag horizontal tunnel 6 to the initial platform 3, and then start layered blasting excavation from the initial platform 3 to expand the pilot shaft into the slag inclined shaft 5, the slag falls to the slag collecting area 8 of the slag horizontal tunnel 6 at the bottom, and the slag is discharged through the slag horizontal tunnel 6.

[0052] 4) Starting from the initial platform 3 at the top, the slope is excavated step by step; when excavating the slope, each level of the slope is excavated in layers and zones, and the excavation depth of each layer is controlled at 3 to 5 meters. The excavation is carried out in zones spreading outward from the slag discharge inclined shaft 5 as the center. The slag falls through the slag discharge inclined shaft 5 to the slag collecting area 8 of the slag discharge horizontal tunnel 6, and the slag is discharged through the slag discharge horizontal tunnel 6; when the excavation plane range is small, the slag can be directly transported by loaders and excavators. If the slag exceeds the economic transportation distance of loaders and excavators, a loader is used for transportation.

[0053] Protective barrier facilities are built around the slag discharge inclined shaft 5, including anti-collision piers 10, scattered slag discharge ports and railings 11 to ensure the safety of construction. In addition, when excavating the slope step by step, it also includes the construction of the transport tunnel 7, and the construction of the transport tunnel 7 includes the following steps: when the geological conditions are Class II surrounding rock, the transport tunnel 7 is directly built to the slope excavation surface of the artificial excavation slope 2; when the geological conditions are Class II or lower surrounding rock, the transport tunnel 7 is built to about 5m away from the slope excavation surface of the artificial excavation slope 2, and a rock plug 9 is formed. After the slope is excavated to this level platform, the slope support and the pre-support of the tunnel entrance are completed, and the rock plug 9 is blasted to penetrate the transport tunnel 7; after the artificial excavation slope 2 is excavated to the platform where the transport tunnel 7 is located and the transport tunnel 7 is penetrated, the construction equipment resources are deployed through the transport tunnel 7, and the wind, water and electricity equipment are moved to this level platform to continue the excavation of the slope below.

[0054] 5) Complete the excavation and support construction of the artificial excavation slope 2, and seal or reinforce the opening of the slag discharge tunnel 6 as needed to ensure permanent operation safety requirements.

[0055] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An artificial slope excavation arrangement structure using inclined shaft slag discharge, used for slag discharge when excavating on a natural slope and forming an artificial excavation slope, characterized in that: include: An initial platform, which is arranged at the top of the natural slope, is excavated and slag is discharged through a construction channel built on the top of the slope, and can serve as an equipment site for the wind, water and electricity system of the multi-level slope excavation below it; A slag discharge flat tunnel, which is arranged on a bottom platform at the bottom of the natural slope and has a slag discharge port; A slag discharge inclined shaft is arranged between the natural slope and the pre-formed artificial excavation slope, the slag discharge inclined shaft is inclined in the direction of the horizontal plane, and the slag discharge inclined shaft is connected to the initial platform and the slag discharge flat tunnel.

2. The artificial slope excavation arrangement structure using inclined shaft slag discharge according to claim 1 is characterized in that: The slope of the slag discharge inclined shaft is not less than 50°, and the diameter of the slag discharge inclined shaft is not less than 5m; When there is a height difference between the slag discharge port of the slag discharge tunnel and the bottom platform, the slag discharge tunnel has a slope surface, and the slope of the slope surface is not greater than 6%.

3. The artificial slope excavation arrangement structure using inclined shaft slag discharge according to claim 2 is characterized in that: A slag collecting area is provided at the connection position between the slag discharge tunnel and the slag discharge inclined shaft, and the slag collecting area is formed by expanding and excavating the slag discharge tunnel and / or the slag discharge inclined shaft.

4. The artificial slope excavation arrangement structure using inclined shaft slag discharge according to any one of claims 1 to 3, characterized in that: A transport tunnel is arranged between the initial platform and the slag discharge tunnel, the transport tunnel is staggered with the slag discharge inclined shaft, and a slope horseway is preset on the artificially excavated slope at the position of the transport tunnel, and the width of the slope horseway is not less than 5m.

5. The artificial slope excavation arrangement structure using inclined shaft slag discharge according to claim 4 is characterized in that: There is a preset distance between the slag discharge inclined shaft and the artificial excavation slope, or the slag discharge inclined shaft is close to the artificial excavation slope.

6. The artificial slope excavation arrangement structure using inclined shaft slag discharge according to any one of claims 1 to 3 or claim 5, characterized in that: The periphery of the slag discharge inclined shaft is provided with protective barrier facilities, which include anti-collision piers, dispersed slag discharge ports and railings, and the height of the anti-collision piers is 40 to 50 cm.

Images