CN110265800A - Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting - Google Patents
Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting Download PDFInfo
- Publication number
- CN110265800A CN110265800A CN201910421215.3A CN201910421215A CN110265800A CN 110265800 A CN110265800 A CN 110265800A CN 201910421215 A CN201910421215 A CN 201910421215A CN 110265800 A CN110265800 A CN 110265800A
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- China
- Prior art keywords
- earthing
- conditions
- grounding means
- open traverse
- resistance
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6473—Impedance matching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6473—Impedance matching
- H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of earthing or grounding means and its construction method based under the conditions of plate brad supporting, it includes being embedded in multiple soil nailings of excavation slope and being layed in excavation slope and be connected to the reinforced mesh of soil nailing that wherein earthing or grounding means, which includes: plate brad supporting, earthing or grounding means includes: the open traverse for concatenating multiple soil nailings, and the open traverse has a plurality of and parallel setting；The total conducting wire connecting with multiple open traverses, total conducting wire are connect with equipment, so as to form the equivalent earthed circuit of a plurality of open traverse parallel connection.The present invention makes full use of the plate brad supporting of excavation slope to reduce additional process and project amount as the connection conductor of equipment independent grounding.The present apparatus is concatenated multiple soil nailings with open traverse, and open traverse has a plurality of and parallel setting, is connected a plurality of open traverse with total conducting wire, the equivalent earthed circuit of a plurality of open traverse parallel connection is formed, to reduce ground resistance.
Description
Technical field
The present invention relates to the realm of building construction, espespecially a kind of earthing or grounding means and its construction party based under the conditions of plate brad supporting
Method.
Background technique
The earth is that a resistance is very low, the very big object of capacitance, possesses the ability for absorbing unlimited charge, Er Qie
It absorbs and is still able to maintain that current potential is constant after a large amount of charges, therefore as the reference potential body in electrical system.By electric system or electricity
A part of grounded line of certain of device of air is connected to earthing pole and is known as being grounded.The conducting wire for being connected to earthing pole is known as being grounded.It connects
The effect on ground mainly prevents the person from getting shocked, equipment and route suffer damage, fire preventing and prevents from being struck by lightning, prevents electrostatic
Damage and guarantee electric system operate normally.
The necessary independent grounding of important equipment, to avoid influence when other equipment failure to itself, particularly with large size
Research equipment, the independent grounding reliability of system directly affect the safety of the accuracy and equipment itself of scientific data.
In the construction project for being related to independent grounding, the resistance value of independent grounding, which directly affects, corresponds to normally making for equipment
With.Ground resistance is mainly electric current to scatter the resistance of soil in approach in underground.Under the conditions of dry pebble layer, soil
Resistivity is higher, then independent grounding resistance value is excessively high, is not able to satisfy the requirement of equipment.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of ground connection dress based under the conditions of plate brad supporting is provided
It sets, solution is in the prior art under the conditions of dry pebble layer, and the resistivity of soil is higher, independent grounding resistance value mistake
Height is not able to satisfy the requirement problem of equipment.
Realizing the technical solution of above-mentioned purpose is:
The present invention provides a kind of earthing or grounding means based under the conditions of plate brad supporting, and plate brad supporting includes being embedded in excavation slope
Multiple soil nailings and be layed in excavation slope and be connected to the reinforced mesh of the soil nailing, the earthing or grounding means includes:
The open traverse of multiple soil nailings is concatenated, the open traverse has a plurality of and parallel setting；And
The total conducting wire connecting with multiple open traverses, total conducting wire are connect with equipment, simultaneously so as to form a plurality of open traverse
The equivalent earthed circuit of connection.
The present invention is based on the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that, branch where the open traverse
Resistance be concatenation each soil nailing the sum of resistance, the quantity that soil nailing is concatenated on the open traverse is true according to required ground resistance
It is fixed.
The present invention is based on the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that, total wire sleeve is equipped with anti-
Pillar, the protecting tube are embedded in underground.
The present invention is based on the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that, the embedded depth of total conducting wire
Degree is underground 0.8m.
The present invention also provides a kind of construction method based on the earthing or grounding means under the conditions of plate brad supporting, plate brad supporting includes burying
Set on excavation slope multiple soil nailings and be layed in excavation slope and be connected to the reinforced mesh of the soil nailing, the construction party
Method includes the following steps:
A plurality of open traverse is provided, the open traverse is concatenated to the open traverse of multiple soil nailings, a plurality of open traverse is parallel
Setting；And
Total conducting wire is provided, total conducting wire is connect with multiple open traverses, and total conducting wire is embedded in underground and company
It is connected to equipment, so as to form the equivalent earthed circuit of a plurality of open traverse parallel connection.
The present invention is based on the construction method of the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that, the branch is led
The resistance of branch where line is the sum of the resistance of each soil nailing of concatenation, and the quantity that soil nailing is concatenated on the open traverse connects according to needed for
Ground resistance determines.
The present invention is based on the construction method of the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that, further includes:
It chooses the soil layer near total conducting wire and is set as earth resistance point；And
Ground resistance at dynamic measurement of Grounding Resistance test point position shakes measured value.
The present invention is based on the construction method of the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that,
It further include the land marking that setting corresponds to the earth resistance point on the ground.
The present invention is based on the construction method of the earthing or grounding means under the conditions of plate brad supporting further improvement lies in that,
Further include that protecting tube is provided, the protecting tube is sheathed on total conducting wire and the protecting tube is embedded in ground
Under.
The present invention is based under the conditions of plate brad supporting earthing or grounding means and its construction method the utility model has the advantages that
The present invention is approximately equivalent to horizontal grounding pole by comparison ground connection web form and Soil-Nailing Wall Structure form, soil nailing,
Reinforced mesh is approximately equivalent to grounded screen, and reinforced mesh and soil nailing are welded to connect, are approximately equivalent to form grounded screen, i.e. soil nailing branch
Shield is approximately equivalent to horizontal grounding pole formula grounded screen.The plate brad supporting of excavation slope can be made full use of as equipment independent grounding
Conductor is connected, additional process and project amount are reduced.
The present apparatus chooses the soil nailing of respective number according to the grounding resistance of design requirement, and present apparatus open traverse will be multiple
Soil nailing concatenation, open traverse has a plurality of and parallel setting, connects a plurality of open traverse with total conducting wire, formed a plurality of open traverse it is in parallel etc.
Earthed circuit is imitated, the inverse of the equivalent resistance of obtained parallel circuit is the sum of the inverse of equivalent resistance of each open traverse, i.e.,
A soil nailing is small by the ground resistance of equipment ground, i.e., the present invention can subtract than directly passing through for the equivalent resistance of obtained parallel circuit
Small ground resistance, under the conditions of solving the undesirable pebble layer of grounding requirement in the prior art, since antecedent soil moisture leads to soil
Resistivity it is excessive, ground resistance it is excessively high without be able to satisfy equipment requirement the problem of.
Detailed description of the invention
Fig. 1 is that the present invention is based on the structural schematic diagrams of the earthing or grounding means under the conditions of plate brad supporting.
Fig. 2 is that the present invention is based on the position views of the soil nailing of the earthing or grounding means under the conditions of plate brad supporting.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Refering to fig. 1, it is shown that the present invention is based on the structural schematic diagrams of the earthing or grounding means under the conditions of plate brad supporting.Fig. 2 is this
The position view of soil nailing of the invention based on the earthing or grounding means under the conditions of plate brad supporting.Referring to figs. 1 and 2, base of the present invention
Earthing or grounding means under the conditions of plate brad supporting, plate brad supporting include being embedded in multiple soil nailings 20 of excavation slope 10 and being layed in
Excavation slope 10 and the reinforced mesh for being connected to the soil nailing 20, the earthing or grounding means include:
The open traverse 30 of multiple soil nailings 20 is concatenated, the open traverse 30 has a plurality of and parallel setting；And
The total conducting wire 40 connecting with multiple open traverses 30, total conducting wire 40 is connect with equipment 50, so as to form a plurality of
The equivalent earthed circuit in parallel of open traverse 30.
As the present invention is based on a better embodiment of the earthing or grounding means under the conditions of plate brad supporting, 30 institutes of open traverse
The quantity of soil nailing 20 is concatenated on the sum of the resistance for each soil nailing 20 that the resistance of branch is concatenation, the open traverse 30 according to needed for
Ground resistance determines.
In the present embodiment, the inverse of the equivalent resistance of the parallel circuit obtained is the electricity of each 30 place branch of open traverse
The sum of inverse of resistance.
As the present invention is based on a better embodiments of the earthing or grounding means under the conditions of plate brad supporting, in the present embodiment,
Equipment is equipped in each building, each equipment is required to individually be grounded.Build the construction that building nearby carries out excavation of foundation pit.It is building
During building engineering progress excavation of foundation pit, the stability of the excavation slope 10 based on pebble layer is poor, generally construction soil nailing
Supporting.Specifically, plate brad supporting is arranged by drilling, joint bar, slip casting, that is, existing way is used, is not being repeated herein.It can
It is oblique into excavation slope 10 to squeeze into angle steel, bar reinforcement formation soil nailing, reinforced mesh is layed in the slope surface of excavation slope 10,
And reinforced mesh and soil nailing are welded and fixed, the continuous net-shaped structure of the large area of formation.
Comparison ground connection web form and Soil-Nailing Wall Structure form, soil nailing are approximately equivalent to horizontal grounding pole, and reinforced mesh is close
It is seemingly equivalent to grounded screen, reinforced mesh and soil nailing are welded to connect, and are approximately equivalent to form grounded screen, i.e. plate brad supporting is approximate quite
In horizontal grounding pole formula grounded screen.Connection conductor of the plate brad supporting of excavation slope as equipment independent grounding can be made full use of,
Reduce additional process and project amount.
Further, it is divided into multiple groups according to multiple soil nailings 20 that the grounding resistance of design requirement is chosen, the present apparatus passes through
Open traverse 30 is sequentially connected with corresponding one group of all soil nailings one by one and obtains so that all soil nailings of this group are concatenated connection
Series circuit equivalent resistance be same group in soil nailing 20 the sum of resistance.
Multiple open traverses 30 are connected with total conducting wire 40, realize parallel connection electricity multiple soil nailings of selection are in parallel, to obtain
The inverse of the equivalent resistance on road is equivalent electricity of the sum of the inverse of equivalent resistance of each series circuit to get the parallel circuit arrived
Than directly passing through, a soil nailing is small by the ground resistance of equipment ground, i.e., the present invention can reduce ground resistance, solve existing for resistance
In technology under the conditions of the undesirable pebble layer of grounding requirement, since antecedent soil moisture causes the resistivity of soil excessive, ground connection electricity
Hinder it is excessively high without be able to satisfy equipment requirement the problem of.
Total conducting wire 40 is arranged with protecting tube, and the protecting tube is embedded in underground.In the present embodiment, using pvc pipe
It is sheathed on total conducting wire 40, to protect total conducting wire 40.
The depth of burying of total conducting wire 40 is underground 0.8m.It can specifically be selected according to actual needs.
The present invention also provides a kind of construction method based on the earthing or grounding means under the conditions of plate brad supporting, plate brad supporting includes burying
Set on excavation slope 10 multiple soil nailings 20 and be layed in excavation slope 10 and be connected to the reinforced mesh of the soil nailing 20, institute
Construction method is stated to include the following steps:
A plurality of open traverse 30 is provided, the open traverse 30 is concatenated to the open traverse 30 of multiple soil nailings 20, by a plurality of branch
Conducting wire 30 is arranged parallel；And
Total conducting wire 40 is provided, total conducting wire 40 is connect with multiple open traverses 30, and total conducting wire 40 is embedded in
Underground and it is connected to equipment 50, so as to form a plurality of open traverse 30 equivalent earthed circuit in parallel.
In the present embodiment, the quantity being arranged according to excavation slope soil nailing, plans foundation pit side corresponding to each building in advance
The region on slope.As shown in Figure 1, two equipment 50 are connected respectively in the region of corresponding excavation slope.In two regions
Soil nailing is isolated and is not attached to.
It is described as the present invention is based on a better embodiment of the construction method of the earthing or grounding means under the conditions of plate brad supporting
The resistance of 30 place branch of open traverse is the sum of the resistance of each soil nailing 20 of concatenation, and the number of soil nailing 20 is concatenated on the open traverse 30
Amount is determined according to required ground resistance.
In the present embodiment, the inverse of the equivalent resistance of the parallel circuit obtained is the electricity of each 30 place branch of open traverse
The sum of inverse of resistance.
As the present invention is based on a better embodiment of the construction method of the earthing or grounding means under the conditions of plate brad supporting, this hairs
It is bright further include:
It chooses the soil layer near total conducting wire 40 and is set as earth resistance point；And
Ground resistance at dynamic measurement of Grounding Resistance test point position shakes measured value.
In the work progress of plate brad supporting, by multiple soil nailings according to rectangular arranged at rows and columns,
The soil nailing in a region with a line is carried out a point row using open traverse to connect, to resistance of the soil nailing after in parallel
Value carries out dynamic measurement.After having carried out resistance value data statistics, the resistance value of earth resistance point is between 0.3 ohm and 0.5
Between ohm.The way that can obtain the parallel connection successfully reduces ground resistance and shakes measured value.
As the present invention is based on a better embodiment of the construction method of the earthing or grounding means under the conditions of plate brad supporting, this hairs
Bright further includes the land marking that setting corresponds to the earth resistance point on the ground.This is also the later period to earth lead
Adequate preparation is carried out in inspection.
As the present invention is based on a better embodiment of the construction method of the earthing or grounding means under the conditions of plate brad supporting, this hairs
Bright further includes providing protecting tube, and the protecting tube is sheathed on total conducting wire 40 and the protecting tube is embedded in underground.
The present invention is based under the conditions of plate brad supporting earthing or grounding means and its construction method have the beneficial effect that
The present apparatus chooses the soil nailing of respective number according to the grounding resistance of design requirement, and present apparatus open traverse will be multiple
Soil nailing concatenation, open traverse has a plurality of and parallel setting, connects a plurality of open traverse with total conducting wire, formed a plurality of open traverse it is in parallel etc.
Earthed circuit is imitated, the inverse of the equivalent resistance of obtained parallel circuit is the sum of the inverse of equivalent resistance of each open traverse, i.e.,
A soil nailing is small by the ground resistance of equipment ground, i.e., the present invention can subtract than directly passing through for the equivalent resistance of obtained parallel circuit
Small ground resistance, under the conditions of solving the undesirable pebble layer of grounding requirement in the prior art, since antecedent soil moisture leads to soil
Resistivity it is excessive, ground resistance it is excessively high without be able to satisfy equipment requirement the problem of.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (9)
1. a kind of earthing or grounding means based under the conditions of plate brad supporting, plate brad supporting include be embedded in multiple soil nailings of excavation slope with
And it is layed in excavation slope and is connected to the reinforced mesh of the soil nailing, which is characterized in that the earthing or grounding means includes:
The open traverse of multiple soil nailings is concatenated, the open traverse has a plurality of and parallel setting；And
The total conducting wire connecting with multiple open traverses, total conducting wire are connect with equipment, in parallel so as to form a plurality of open traverse
Equivalent earthed circuit.
2. as described in claim 1 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that
The resistance of branch where the open traverse is the sum of the resistance of each soil nailing of concatenation, and the number of soil nailing is concatenated on the open traverse
Amount is determined according to required ground resistance.
3. as described in claim 1 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that
Total wire sleeve is equipped with protecting tube, and the protecting tube is embedded in underground.
4. as described in claim 1 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that
The depth of burying of total conducting wire is underground 0.8m.
5. a kind of construction method based on the earthing or grounding means under the conditions of plate brad supporting, plate brad supporting include being embedded in excavation slope
It multiple soil nailings and is layed in excavation slope and is connected to the reinforced mesh of the soil nailing, which is characterized in that the construction method
Include the following steps:
A plurality of open traverse is provided, the open traverse is concatenated to the open traverse of multiple soil nailings, a plurality of open traverse is arranged parallel；
And
Total conducting wire is provided, total conducting wire is connect with multiple open traverses, and total conducting wire is embedded in underground and is connected to
Equipment, so as to form the equivalent earthed circuit of a plurality of open traverse parallel connection.
6. the construction method as claimed in claim 5 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that
The resistance of branch where the open traverse is the sum of the resistance of each soil nailing of concatenation, and the number of soil nailing is concatenated on the open traverse
Amount is determined according to required ground resistance.
7. the construction method as claimed in claim 5 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that also wrap
It includes:
It chooses the soil layer near total conducting wire and is set as earth resistance point；And
Ground resistance at dynamic measurement of Grounding Resistance test point position shakes measured value.
8. the construction method as claimed in claim 7 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that
It further include the land marking that setting corresponds to the earth resistance point on the ground.
9. the construction method as claimed in claim 5 based on the earthing or grounding means under the conditions of plate brad supporting, which is characterized in that
Further include that protecting tube is provided, the protecting tube is sheathed on total conducting wire and the protecting tube is embedded in underground.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910421215.3A CN110265800A (en) | 2019-05-21 | 2019-05-21 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910421215.3A CN110265800A (en) | 2019-05-21 | 2019-05-21 | Based on the earthing or grounding means and its construction method under the conditions of plate brad supporting |
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| CN110265800A true CN110265800A (en) | 2019-09-20 |
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Application publication date: 20190920 |