CN205605114U - Karst karst area prestressed anchorage cable drilling equipment - Google Patents

Karst karst area prestressed anchorage cable drilling equipment Download PDF

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Publication number
CN205605114U
CN205605114U CN201620376151.1U CN201620376151U CN205605114U CN 205605114 U CN205605114 U CN 205605114U CN 201620376151 U CN201620376151 U CN 201620376151U CN 205605114 U CN205605114 U CN 205605114U
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CN
China
Prior art keywords
karst
anchorage cable
drilling equipment
steel bushing
construction
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Active
Application number
CN201620376151.1U
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Chinese (zh)
Inventor
岳巍
苏伟
叶国昌
刘辉
孙永国
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China Construction Fourth Bureau First Construction Engineering Co Ltd
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China Construction Fourth Bureau First Construction Engineering Co Ltd
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Priority to CN201620376151.1U priority Critical patent/CN205605114U/en
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Abstract

The utility model discloses a karst karst area prestressed anchorage cable drilling equipment, including the frame, be provided with bearing frame and sleeve fixing base respectively at frame top both ends, steel sleeve fixes on the sleeve fixing base, and rig connector one end is connected with the bearing rotation in the bearing frame, and the other end passes through flange and hollow drill fixed connection, and the hollow drill is connected with the drill bit after penetrating steel sleeve. The utility model discloses can realize quick drilling at karst karst area to satisfy the requirement of prestressed anchorage cable construction, drilling depth can adjust by according to actual need moreover, and easy operation, swift, the use safe and reliable of installation can also effectively improve the efficiency of construction, the reduction of erection time, can have enough to meet the need the use moreover, and practice thrift construction cost, reach reduce cost and improve effect's purpose.

Description

A kind of casta region prestress anchorage cable drilling equipment
Technical field
This utility model relates to a kind of casta region prestress anchorage cable drilling equipment, belongs to technical field of building construction.
Background technology
At present, in view of the geological phenomenons such as the solution cavity of casta region, underground river are universal, support pile construction is constructed extremely difficult when meeting ultra-deep, the solution cavity of super-large diameter or underground river.Particularly around construction prestressed cable place rich groundwater and duration of a project tight in the case of, in addition support pile construction periphery is residential building building entirely, the existence of the unfavorable factors such as collapse hole shrinkage cavity and water percolating capacity, construction requirement and then the pressure that the soil body bears strengthens significantly, under the conditions of causing the construction prestressed cable technology of routine can not overcome karst area.Therefore, it is badly in need of a kind of casta region of design prestress anchorage cable drilling equipment and guarantees that construction prestressed cable meets design and code requirement.
Utility model content
The purpose of this utility model is: provides simple in construction, hole quick, safe and reliable, and can have enough to meet the need the casta region prestress anchorage cable drilling equipment of use, to overcome the deficiencies in the prior art.
The technical solution of the utility model: a kind of casta region prestress anchorage cable drilling equipment, including support, it is respectively arranged with bearing block and sleeve barrel fixed seat at two ends, support top, steel bushing is fixed on sleeve barrel fixed seat, rig union joint one end is rotationally connected with the bearing in bearing block, the other end is connected by flange and hollow drill are fixing, and hollow drill is connected with drill bit after penetrating steel bushing.
The two ends of described steel bushing or hollow drill are respectively arranged with female thread and external screw thread, it is simple to the spreading of remaining steel bushing or hollow drill connects.
The length of described steel bushing is less than the length of hollow drill, it is simple to hollow drill is connected with drill bit.
Described drill bit maximum diameter is more than diameter 5mm~8mm of steel bushing, it is simple to drilling-machine shifter steel bushing.
Compared with prior art, the utility model has the advantage of: this utility model can realize rapid drilling in casta region, to meet the requirement of construction prestressed cable, and drilling depth can be adjusted according to actual needs, simple to operate, quick for installation, safe and reliable, moreover it is possible to be effectively improved efficiency of construction, reduction of erection time, and use can be had enough to meet the need, save construction cost, reach the purpose of cost efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of this utility model hollow core drilling rod;
Fig. 3 is the structural representation of steel bushing in this utility model.
Description of reference numerals: 1-support, 2-bearing block, 3-sleeve barrel fixed seat, 4-rig union joint, 5-flange, 6-hollow drill, 7-steel bushing, 8-drill bit.
Detailed description of the invention
In order to make this utility model purpose, technical scheme and advantage clearer, the utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment of the present utility model: the structural representation of casta region prestress anchorage cable drilling equipment is as shown in Figure 1, including support 1, it is respectively arranged with bearing block 2 and sleeve barrel fixed seat 3 at two ends, support 1 top, steel bushing 7 is fixed on sleeve barrel fixed seat 3, rig union joint 4 one end is rotationally connected with the bearing in bearing block 2, the other end is connected by flange 5 is fixing with hollow drill 6, hollow drill 6 is connected with drill bit 8 after penetrating steel bushing 7, the length of described steel bushing 7 is less than the length of hollow drill 6, it is easy to hollow drill 6 be connected with drill bit 8, drill bit 8 maximum diameter is more than diameter 5mm~8mm of steel bushing 7, it is easy to drilling-machine shifter steel bushing.Seeing Fig. 2 and Fig. 3, the two ends of described steel bushing 7 or hollow drill 6 are respectively arranged with female thread and external screw thread, it is simple to the spreading of remaining steel bushing 7 or hollow drill 6 connects.
When using this utility model to carry out construction prestressed cable in casta region, following steps can be used to implement:
A, anchor hole measuring, foundation pit construction digs while supporting, i.e. excavation one layer, sprays one layer of anchor, Construction of Supporting one layer, and every layer of excavation bottom surface is positioned at 500mm under each layer supporting construction, must not once excavate on earth;B, according to anchor hole elevation, accurately release anchor cable orifice position making by design requirements and significantly indicate;C, rig is connected with the rig union joint 4 in this utility model;D, for guaranteeing anchor hole diameter, it is desirable to the diameter of actually used drill bit 8 cannot be less than design aperture (150mm).For guaranteeing hole depth, it is desirable to the actual borehole degree of depth is more than more than projected depth 0.5m;E, employing one joint mechanism (i.e. one steel bushing 7 and a hollow drill 6) boring, a diameter of 80mm of hollow drill 6, drill bit 8 maximum a diameter of 155~158mm, length 2.0m;F, when hole 1.5m time, respectively spreading steel bushing 7 and hollow drill 6, then carry out the construction in next stage prestress anchorage cable hole;G, repeat the above steps, until making prestress anchorage cable hole construct to design attitude;Formation variation to each hole in f, drilling process, creeps into state (the pressure of the drill, drilling speed), subsoil water and some special circumstances and performs site operation record;Necessary strict keyhole angle when h, anchor cable construction, it is ensured that Kong Wei, hole deviation are correct, Gu machine is steady.In work progress, detecting hole deviation in time, gradient deviation is not more than 3%, and regards boring needs, rationally takes satisfactory after correcting;I, creep into and reach projected depth after, it is impossible to stop immediately to bore, it is desirable to steady bore 1~2min, prevent hole vertex (vertices) from going out, do not reach design aperture.Borehole wall must not have heavy quarrel and water body viscous, must clean out, after boring completes, rock dust in hole and water body are all removed outside portalling by use pressure-air (blast 0.2~0.4MPa), in order to avoid reducing the adhesion strength of cement mortar and hole wall Rock And Soil, high pressure water washing must not be used.J, anchor hole bore after making end, must can carry out next procedure through site supervision after the assay was approved.Aperture, hole depth inspection are verified under conditions of typically using the other station of design aperture, drill bit and standard drill pipe management at the scene, during requirement is verified, drill bit smooth-going advances, do not produce impact or shake, drilling tool is tested and is sent length to meet design hole depth, move back brill and require smooth and easy, test with high pressure wind and do not deposit obvious splashing dirt quarrel and water body phenomenon.Requiring check position, anchor hole hole, inclination angle and orientation, after whole anchor hole construction subitem work are qualified, i.e. it is believed that anchor hole bores, to make inspection qualified simultaneously.

Claims (4)

1. a casta region prestress anchorage cable drilling equipment, including support (1), it is characterized in that: be respectively arranged with bearing block (2) and sleeve barrel fixed seat (3) at support (1) two ends, top, steel bushing (7) is fixed on sleeve barrel fixed seat (3), rig union joint (4) one end is rotationally connected with the bearing in bearing block (2), the other end is connected by flange (5) and hollow drill (6) are fixing, and hollow drill (6) penetrates steel bushing (7) and is connected with drill bit (8) afterwards.
Casta region the most according to claim 1 prestress anchorage cable drilling equipment, it is characterised in that: the two ends of described steel bushing (7) or hollow drill (6) are respectively arranged with female thread and external screw thread.
Casta region the most according to claim 2 prestress anchorage cable drilling equipment, it is characterised in that: the length of described steel bushing (7) is less than the length of hollow drill (6).
Casta region the most according to claim 1 prestress anchorage cable drilling equipment, it is characterised in that: described drill bit (8) maximum diameter is more than the diameter of steel bushing (7).
CN201620376151.1U 2016-04-29 2016-04-29 Karst karst area prestressed anchorage cable drilling equipment Active CN205605114U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620376151.1U CN205605114U (en) 2016-04-29 2016-04-29 Karst karst area prestressed anchorage cable drilling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620376151.1U CN205605114U (en) 2016-04-29 2016-04-29 Karst karst area prestressed anchorage cable drilling equipment

Publications (1)

Publication Number Publication Date
CN205605114U true CN205605114U (en) 2016-09-28

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CN201620376151.1U Active CN205605114U (en) 2016-04-29 2016-04-29 Karst karst area prestressed anchorage cable drilling equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812466A (en) * 2017-01-17 2017-06-09 武汉工程大学 Underground mining digging laneway reduction noise method
CN110344865A (en) * 2019-07-18 2019-10-18 江苏科技大学 A kind of magnetic principle reinforces anchor pole and its construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812466A (en) * 2017-01-17 2017-06-09 武汉工程大学 Underground mining digging laneway reduction noise method
CN110344865A (en) * 2019-07-18 2019-10-18 江苏科技大学 A kind of magnetic principle reinforces anchor pole and its construction method
CN110344865B (en) * 2019-07-18 2020-11-24 江苏科技大学 Magnetic principle reinforced anchor rod and construction method thereof

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