Road drilling construction method

Abstract

The present invention relates to the technical field of road construction, and discloses a road drilling construction method, wherein a drilling hole is set on a first lane line, and a road drilling construction device includes a bracket, a workbench and a drilling rig; the brackets are relatively arranged at least two, respectively arranged on a second lane line and / or a shoulder, the workbench is supported on the brackets, and the drilling rig is arranged on the workbench corresponding to the drilling hole position. By using a workbench that crosses the lane and brackets arranged on both sides of the lane, no construction-related tools are set on the lane to block the passage of vehicles during construction, and the drilling hole is also set on the lane line and occupies only a small working area, and vehicles pass normally under the workbench during the drilling construction; ensuring that the construction efficiency is improved when the traffic volume is large during the day and does not cause traffic congestion, so there is no need to disturb the public during construction at night.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, in particular to a road drilling construction method. Background Art

[0002] At present, before planning and construction of urban projects, it is necessary to have a comprehensive understanding of the actual geological conditions, environmental conditions, etc. around the drilling project. In order to understand the geological conditions around the project, drilling and soil sampling are generally adopted, and it is necessary to go to the on-site enclosure for drilling construction.

[0003] With the development of urban construction, more and more construction projects need to pass through busy traffic areas, so it is necessary to frequently drill and take soil from the roads that are in traffic; drilling construction on the road usually adopts direct construction on the road surface, but many roads have heavy traffic and long busy hours, and road construction will inevitably affect traffic and cause traffic congestion; in order to avoid traffic congestion, construction can also be carried out at night when traffic is light, but night construction is easy to disturb the public and the construction time is short each time, resulting in a long construction period. Summary of the invention

[0004] The purpose of the present invention is to provide a road drilling construction method, which does not require road closure and road occupation during road drilling operations, and vehicles can continue to move; while ensuring construction, traffic congestion and disturbance to residents can be avoided.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a road drilling construction device, in which the drilling hole position is set on the first lane line, and the road drilling construction device includes a bracket, a workbench and a drilling rig; the bracket is arranged in two groups opposite to each other, and is respectively arranged on the second lane line and / or the shoulder, the workbench is supported on the bracket, and the drilling rig is arranged on the workbench corresponding to the drilling hole position.

[0006] Preferably, the workbench is composed of a plurality of workbench units, and the workbench units are detachably connected to each other, the workbench unit is a rectangular flat plate, the width direction of the road is the width direction of the workbench unit, and the width of the workbench unit is the same as the width of a lane.

[0007] Specifically, the workbench is rectangular, and the length or width is 4-128-12 meters.

[0008] Preferably, the road drilling construction device also includes a staircase connecting the workbench and the ground; the width of the staircase is 0.8-1 meter.

[0009] The road drilling construction device also includes a casing, one end of which is arranged in the borehole, and the other end is arranged on the workbench; the drilling rig includes a drilling rig body arranged on the workbench, a coaxially arranged drill rod, a core tube and a drilling tool; the two ends of the drill rod are respectively connected to the drilling rig body and the core tube, and the lower end of the core tube is connected to the drilling tool.

[0010] The road drilling construction device also includes drainage facilities, which are arranged on one side or both sides of the bracket, and on both sides of the borehole. The distance between the drainage facilities located on both sides of the borehole is at least 30 cm.

[0011] A construction method based on the road drilling construction device comprises the following steps:

[0012] Confirm the drilling hole position and set the drilling hole position at the lane line;

[0013] Determine the width and height of the workbench according to the drilling hole position;

[0014] Set up road drilling construction equipment;

[0015] Break up the road surface at the drilling location and pre-dig holes;

[0016] The drilling part of the drilling rig moves into the pre-dug hole and starts to rotate the drilling tool to perform drilling operations using mud wall protection;

[0017] During drilling, drilling down to a certain depth is called a round, and soil samples in the core tube are collected after each round. The rounds are repeated until the desired depth is reached and the drilling is terminated.

[0018] The borehole is sealed and grouting is performed, the casing is removed and the road surface is cleaned; the bracket and the workbench are moved to the next borehole;

[0019] Repeat the above steps until the drilling is completed; remove the drilling construction device.

[0020] Specifically, the pre-dig hole depth is 2-4 meters.

[0021] Furthermore, before starting to rotate the drill bit to perform drilling operations using mud wall protection, the drilling part of the drill rig is slowly inserted into the ground below the drilling hole in the vertical direction. The drilling part of the drill rig is inserted into the ground to a depth of 6-10 meters.

[0022] Preferably, when drilling downward, the depth of each round is 1-2 meters.

[0023] Compared with the prior art, the road drilling construction method and device provided by the present invention have the following beneficial effects: by setting the drilling hole position on the first lane line where the drilling hole position is located, and the bracket is set on the first lane line and the second lane line or the shoulder on both sides of the road; the workbench is supported on the bracket, and a space for normal vehicle driving is reserved under the workbench; the drilling rig is set on the workbench corresponding to the drilling hole position, and the bottom of the drilling rig extends to the ground for drilling, and the drilling rig itself will not affect the traffic flow; by using the workbench that crosses the lane and the brackets set on both sides of the lane, no construction-related equipment is set on the lane to block the passage of vehicles during construction, and the drilling hole position is also set on the lane line and only occupies a small working area, and vehicles can pass normally under the workbench during the drilling construction; ensuring that construction efficiency is improved when the traffic volume is large during the day and does not cause traffic congestion, so there is no need to cause disturbance to the public during construction at night. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the front structure of a road drilling construction method and device according to an embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the side structure of a road drilling construction method and device according to an embodiment of the present invention.

[0026] Figure 3 It is a schematic diagram of the position of a climbing mechanism of a road drilling construction method and device according to an embodiment of the present invention.

[0027] Figure 4 The present invention is a schematic diagram of the positions of supports and drainage facilities of a road drilling construction method and device according to an embodiment of the present invention.

[0028] In the figure, 1, first lane line; 2, support; 3, workbench; 31, workbench unit; 4, drilling rig; 41, drilling rig body; 42, drill rod; 43, core tube; 44, drilling tools; 5, second lane line; 51, shoulder; 6, stairs; 7, casing; 8, drainage facilities. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper" and "lower" etc. used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the 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 a limitation on the present invention.

[0031] like Figure 1-Figure 4 As shown, a road drilling construction device according to a preferred embodiment of the present invention, the drilling hole position is set on the first lane line 1, and the road drilling construction device includes a bracket 2, a workbench 3 and a drilling rig 4; the bracket 2 is two groups arranged opposite to each other, respectively arranged on the second lane line 5 and / or the shoulder 51, the workbench 3 is supported on the bracket 2, and the drilling rig 4 is set on the workbench 3 corresponding to the drilling position.

[0032] Specifically, the bracket 2 is a straight rod with adjustable height, and the workbench 3 is installed on the bracket 2. After installation, a space for vehicles to pass is left under the workbench 3; the lane line where the drilling hole is located is the first lane line 1, and the remaining lane lines are the second lane lines 5. The two groups of brackets 2 can be fixed on the first lane line 1 and the second lane line 5 on both sides of the lane, respectively, or both can be set on the second lane line 5, or respectively set on the second lane line 5 and the shoulder 51, and the number of each group of brackets 2 is set to two; during drilling construction, vehicles can pass through the space under the workbench 3 and pass normally without obstruction; the drilling rig 4 is installed on the workbench 3, and a hole is opened on the workbench 3 for the drilling part of the drilling rig 4 to pass through, so that the drilling part of the drilling rig 4 can extend vertically to the ground.

[0033] Preferably, the workbench 3 is composed of a plurality of workbench units 31, which are rectangular flat plates and are detachably connected to each other. The width of the workbench unit 31 is the width direction of the road, and the width of the workbench unit 31 is the same as the width of a lane.

[0034] Specifically, the workbench 3 is composed of a plurality of workbench units 31, and brackets 2 are respectively installed on the four corners of each workbench unit 31 to form a lane frame; the four brackets 2 of each lane frame are arranged at the first lane line 1 and the second lane line 5 or the shoulder 51 on both sides of a lane, and two brackets are arranged on each side of the lane, so that each lane frame can just cover above a lane.

[0035] Preferably, the workbench 3 is rectangular, with a length or width of 8-12 meters.

[0036] Specifically, the drilling rig 4 is installed above the first lane line 1, so the workbench 3 needs to cross multiple lanes to install the drilling rig 4; when it is necessary to cross two lanes, two lane frames need to be assembled and the two workbench units 31 are connected by bolts; since the width of the lane is generally 2.8-3.75 meters, the area of ​​the workbench 3 is 30-75 square meters; taking 3.5 meters as an example here, the length of the workbench unit 31 along the lane direction is selected to be 10 meters. At this time, the area of ​​the workbench 3 is 70 square meters, so as to provide sufficient length space for construction, installation of guardrails and setting up a rest room and keep the workbench 3 as a whole stable; when crossing three lanes, the length of the workbench 3 in the lane width direction is 10.5 meters, and the width of the workbench unit 31 is selected to be 4 meters so that the drilling rig 4 can be placed on the workbench 3. At this time, the area of ​​the workbench 3 is 42 square meters, ensuring that there is enough length to place the drilling rig 4 for construction, installation of guardrails and setting up a rest room and keep the workbench 3 as a whole stable.

[0037] like Figure 2 , Figure 3 As shown, preferably, the road drilling construction device further includes a staircase 6 connecting the workbench 3 and the ground; the width of the staircase 6 is 0.8-1 meter.

[0038] The stairs 6 are installed on the first lane line 1 and the second lane line 5. Personnel can move between the workbench 3 and the drilling hole and the ground through the stairs 6, which is convenient for performing related operations without affecting the normal passage of vehicles on the lane.

[0039] Specifically, the stairs 6 are arranged on the first lane line 1 where the drilling hole is located, and the stairs 6 can be arranged on the roadside and the second lane line 5; the construction personnel can conveniently and quickly travel back and forth between the workbench 3 and the drilling hole on the ground through the stairs 6; the direction of the stairs 6 is arranged along the length direction of the lane line to reduce the occupation of the lane; when the lane width is 3.5 meters, the stair width is set to 1 meter, and it is necessary to occupy 0.5 meters of the lane on both sides of the lane line respectively. When stairs 6 are arranged on both sides of the lane, the occupied width of the lane is 1 meter, and smaller width enclosure facilities are arranged on both sides of the stairs 6 to ensure that the width of the lane available for driving is greater than 2 meters, so that vehicles can drive normally.

[0040] In addition, the staircase 6 can also be configured as a vertical ladder, which can save installation space.

[0041] Preferably, the road drilling construction device also includes a casing 7, one end of which is arranged in the borehole, and the other end is arranged on the workbench 3; the drilling rig 4 includes a drilling rig body 41 arranged on the workbench 3, a coaxially arranged drill rod 42, a core tube 43 and a drilling tool 44; the two ends of the drill rod 42 are respectively connected to the drilling rig body 41 and the core tube 43, and the lower end of the core tube 43 is connected to the drilling tool 44; the drilling tool 44 is used for ground drilling, and the core tube 43 is used to store soil samples drilled by the drilling tool 44 for easy recovery.

[0042] Specifically, the lower end of the casing 7 is inserted into the borehole with the drilling tool 44 to extract the mud during the drilling process; the upper end of the casing 7 is connected to the workbench 3 and a distance is left for connecting the connector and the mud pipe; the middle part of the casing 7 is located on the lane line to prevent obstruction of passing vehicles. The drilling rig body 41 is set on the workbench 3, and the drill rod 42 extends downward through the hole on the workbench 3. The drill rod 42, the core tube 43 and the drilling tool 44 are coaxially installed from top to bottom and vertically point to the ground for easy drilling.

[0043] In addition, the diameter of the drilling tool 44 is 90-120 mm; the diameter of the casing 7 is 100-130 mm.

[0044] Specifically, the diameter of the drill tool 44 is set to 110 mm, which can meet the needs of drilling and taking soil; the diameter of the casing 7 is slightly larger than the diameter of the drill tool 44, set to 120 mm, to ensure that the mud flows out through the casing 7 during drilling and does not leak out.

[0045] The road drilling construction device also includes drainage facilities 8, which are arranged on one side or both sides of the support 2, and on both sides of the borehole. The distance between the drainage facilities located on both sides of the borehole is at least 30 cm.

[0046] The diversion facilities 8 are placed on both sides of the support 2 and the drilling and other ground equipment, and the support 2 and the drilling and other equipment are enclosed in the middle of the diversion facilities 8 to prevent irrelevant personnel and vehicles from mistakenly entering the construction area; since the minimum diameter of the drilling hole is 30 cm, and the width of the lane is 3.75 meters, the vehicle width is usually 2 meters; the spacing between the diversion facilities 8 on both sides of the drilling hole is 30-170 cm, which provides sufficient construction space for the drilling hole and enables the lane to pass normally.

[0047] The present invention provides a road drilling construction method, comprising the following steps:

[0048] Confirm the drilling hole position and set it at the lane line position; specifically, the drilling hole position is usually given in the form of longitude and latitude. Use the positioning equipment to confirm the drilling hole position first. If the drilling hole position is on the lane line, there is no need to modify the drilling position. If the drilling hole position is near the lane line, set the drilling hole position to the nearest lane line position to ensure that the construction equipment does not affect the normal driving of the lane.

[0049] Determine the width and height of the workbench 3 according to the drilling hole position; preferably, assemble a corresponding number of workbench units 31 and brackets 2 according to the number of lanes to be crossed; when the assembled workbench 3 and bracket 2 are moved to the drilling hole position in the above steps, move the respectively assembled workbench units 31 and bracket 2 to the drilling hole position and then connect the workbench units 31;

[0050] Specifically, the size of the workbench unit 31 is determined according to the lane width and the on-site construction conditions; according to the number of lanes that need to be crossed within the construction scope, the workbench unit 31 and the bracket 2 are pre-assembled on the roadside to form a corresponding number of lane frames, and a bracket 2 is installed on each of the four corners of each workbench unit 31, so that each lane frame can be correspondingly arranged on the lane, and the bracket 2 is arranged on both sides of the lane without blocking the normal passage of vehicles.

[0051] Set up road drilling construction equipment; specifically, when the traffic volume is small at night, arrange fences, water barriers, signboards and other diversion facilities 8 around the predetermined construction area to guide vehicles to other lanes; after the diversion facilities 8 are arranged, move the preassembled lane frame to the construction area; adjacent workbench units 31 are fixed by bolts to form a workbench 3 as a whole, and the brackets 2 are set at the lane lines or shoulders 51 on both sides of the lane, and the brackets 2 are reinforced and fixed to prevent the brackets 2 from moving during construction; install stairs 6, and then hoist the guardrail and lounge parts onto the workbench 3 to start installation; this process requires the road to be closed, and it can be carried out at night to reduce the impact on traffic.

[0052] After the staircase 6 and the guardrail are installed, the drainage facility 8 is moved around the bracket 2, the staircase 6 and the drilling hole, and the bracket 2, the staircase 6 and the drilling hole are enclosed inside the drainage facility 8; at this time, the lane can be used normally and vehicles can be prevented from mistakenly entering the construction area.

[0053] The road surface at the drilling hole position is broken and a pre-dug hole is dug; specifically, the construction personnel move to the drilling hole position through the stairs 6, break the ground at the drilling hole position, and dig down 3 meters. The pre-dug hole provides a positioning space for the drilling tool 44 and the casing 7.

[0054] The drilling rig 4 is hoisted onto the workbench 3, and the drill rod 42, the core tube 43 and the drilling tool 44 are installed in sequence. The drill rod 42, the core tube 43 and the drilling tool 44 are in the same straight line and the straight line is along the vertical direction; the drilling tool 44 and the casing 7 are inserted into the pre-dug hole to prepare for the drilling work; the other end of the casing 7 is placed on the workbench and connected to the connector and the mud pipe, so as to discharge the mud generated during drilling through the casing 7 and the mud pipe.

[0055] The drilling part of the drilling rig moves to the pre-dug hole, and starts to rotate the drill bit and use the mud wall to perform drilling operations; specifically, after the preparation work is completed, the drilling rig 4 is started, and the mud wall is used for rotary drilling. The mud generated during the drilling process enters the mud pool through the casing 7, the connector and the mud pipe in turn, and the mud in the mud pool is filtered by the filtering device. The filtered liquid is sent into the borehole again through the water pump to ensure that the borehole is full of water for continuous drilling.

[0056] During drilling, drilling down to a certain depth is called a round, and soil samples in the core tube 43 are collected after each round. This is repeated for multiple rounds until the desired depth is reached and the drilling is terminated.

[0057] After the hole is drilled to the required depth of the soil sample, the soil sample in the core tube 43 can be obtained, and the drilling work is completed.

[0058] The borehole is sealed and grouting is performed, the casing 7 is taken out and the road surface is cleaned; the bracket 2 and the workbench 3 are moved to the next borehole; specifically, after the drilling is completed, the borehole is sealed and grouting is performed, the casing 7 is pulled out and the road surface is cleaned, and the repair of the ground is completed, that is, the drilling construction here is completed.

[0059] Repeat the above steps until the drilling is completed; during the night when there is less traffic, move the construction device to the next drilling construction site and repeat the above process for drilling and sampling.

[0060] When there is no need to drill holes in this area, remove the drilling construction device; just disassemble the construction device in the reverse order of the installation steps.

[0061] Furthermore, before the rotary drill 44 is started to perform drilling operation using mud wall protection, the core tube 43 is inserted vertically into the ground below the drilling hole, and the depth of the core tube 43 inserted into the ground is 6-10 meters.

[0062] Specifically, before rotary drilling, the core tube 43 needs to be slowly knocked so that the core tube 43 is inserted into the ground and moves vertically downward. During the knocking process, it can be determined whether there are pipelines pre-buried on the drilling path; when there are pipelines on the drilling path, the core tube 43 will be blocked by the protective facilities set outside the pipeline. At this time, the construction position needs to be changed to avoid the pipeline; because the pipeline is usually set at a depth of less than 6 meters below the road surface, preferably, the core tube 43 can be slowly moved to a depth of 7 meters below the ground. After confirming that there are no pipelines, you can prepare to start the drilling operation.

[0063] Preferably, when the rotary drill 44 performs drilling operation with mud wall protection, the drill 44 collects soil samples in the core tube 43 every time the drilling depth reaches 1-2 meters; this is repeated multiple times until the drilling reaches the required depth for the project.

[0064] Specifically, when drilling downward for every 1-2 meters, the core tube 43 is moved upward out of the borehole, the soil sample in the core tube 43 is taken out, and then drilling is continued downward; drilling for 1-2 meters and taking out the soil sample is repeated until the required depth is reached. This can prevent excessive accumulation of soil samples in the core tube 43, which may cause compression of the soil samples, making analysis difficult and also possibly causing blockage of the borehole.

[0065] In addition, rollers can be installed at the lower end of each bracket 2 to facilitate the movement of the drilling construction device.

[0066] A movable oil cylinder may also be provided to adjust the height of the workbench 3 , thereby facilitating the installation and recovery of the workbench 3 .

[0067] The working process of the present invention is as follows: the drilling hole is set at the nearest lane line position and a drilling position of 30 cm is reserved, and the size of the workbench 3 is selected according to the on-site conditions; the workbench 3 and the bracket 2 are pre-installed on the roadside to form a lane frame that can correspond to each lane; at night, a diversion facility 8 is set around the construction area to guide the traffic flow, and then the assembled lane frame is moved to the drilling construction area, and the bracket 2 is set on the lane line so that the lane passes under the lane frame; the workbench units 31 are fixedly connected by bolts, and the bracket 2 is fixed to the ground. After the fixing is completed, the stairs 6 and guardrails and other facilities are installed; then the diversion facility 8 is moved to the stairs 6 , bracket 2 and around the borehole, so that vehicles can pass normally and prevent unrelated vehicles and personnel from entering the construction area; construction personnel reach the drilling hole through the stairs 6, break the road surface of the drilling hole and dig 3 meters downward; install the drilling rig body 41, drill rod 42, core tube 43, drilling tool 44, and insert the drilling tool 44 and casing 7 into the pre-dug hole; slowly insert the core tube 43 to a depth of 6 meters below the ground to confirm that there are no pipelines on the drilling path; start the drilling rig 4 to start drilling, stop drilling and take out the soil sample in the core tube 43 every 1-2 meters of drilling downward, and then drill again, repeat drilling until the required soil sample depth is reached, and take out the soil sample to complete the drilling. Seal the borehole with grouting, take out the equipment in the borehole, clean the road surface and repair it. After the road surface repair is completed, move the construction device to the next drilling hole and repeat the above process to perform the drilling operation. When there is no need for a drilling area in the nearby area, dismantle the construction equipment in the reverse order of the installation steps.

[0068] In summary, the embodiments of the present invention provide a road drilling construction method and device, which facilitates on-site installation and disassembly through a detachable modular structure construction device, and can improve work efficiency; through a workbench 3 that crosses the lane and a bracket 2 arranged on the lane line or shoulder 51 on both sides of the lane, drilling construction can be carried out simultaneously without affecting the driving of vehicles on the lane, thereby improving work efficiency and shortening construction period, and at the same time, it can also avoid disturbing the public by drilling construction at night.

[0069] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A road drilling construction method, suitable for a road drilling construction device, wherein the drilling hole is set on a first lane line, and the road drilling construction device comprises a bracket, a workbench and a drilling rig; the bracket is arranged in two groups opposite to each other, and is respectively arranged on a second lane line and / or a shoulder, the workbench is supported on the bracket, and the drilling rig is arranged on the workbench corresponding to the drilling hole position, and also comprises a casing, one end of the casing is arranged in the borehole, and the other end is arranged on the workbench; the drilling rig comprises a drilling rig body arranged on the workbench, a coaxially arranged drill rod, a core tube and a drilling tool; the two ends of the drill rod are respectively connected to the drilling rig body and the core tube, and the lower end of the core tube is connected to the drilling tool, characterized in that The following steps are involved: Confirm the drilling hole position and set the drilling hole position at the lane line; Determine the width and height of the workbench according to the drilling hole position; Set up road drilling construction equipment; Break up the road surface at the drilling location and pre-dig holes; The drilling part of the drilling rig moves into the pre-dug hole and starts to rotate the drilling tool to perform drilling operations using mud wall protection; During drilling, drilling down to a certain depth is called a round, and soil samples in the core tube are collected after each round. The rounds are repeated until the desired depth is reached and the drilling is terminated. The borehole is sealed and grouting is performed, the casing is removed and the road surface is cleaned; the bracket and the workbench are moved to the next borehole; Repeat the above steps until the drilling is completed; remove the drilling construction device.

2. The road drilling construction method according to claim 1, characterized in that: The pre-dig depth is 2-4 meters.

3. The road drilling construction method according to claim 1, characterized in that: Before starting to rotate the drill bit to perform drilling operations using mud wall protection, the drilling part of the drill rig is slowly inserted into the ground below the drilling hole in the vertical direction. The drilling part of the drill rig is inserted into the ground to a depth of 6-10 meters.

4. The road drilling construction method according to claim 1, characterized in that: When drilling downwards, the depth of each round is 1-2 meters.

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