Cable adapter protector and application method for Expressway Soft Foundation Monitoring
Technical field
The present invention relates to a kind of cable adapter protector and application method for Expressway Soft Foundation Monitoring, belong to
Ground monitors field of measuring technique.
Background technology
More and more face soft soil roadbed with the development of China's expressway construction, in process of construction, and for soft
Earth roadbed upper building highway, the sedimentation of its construction time, stability, embankment construction arrangement, fill core concrete control, precompressed
The problems such as determination of time phase, unloading time analysis, settlement after construction, stability is the important topic of Geotechnical Engineering circle research.Scene
Soft base monitoring is to study one of Main Means of these important topics.The measurement system of live soft base monitoring refers to that sedimentation plate is surveyed
Amount, deeply mixing cement-soil pile measurement, pore water pressure measurement, soil pressure measurement, displacement stake measurement etc., and pore pressure meter, soil pressure meter are
It is embedded in soft soil foundation, is drawn by cable, the device of frequency recorder measurement.
Cable is frequently encountered in live soft base monitoring to be needed to carry out joint, and cable is to be embedded in soft soil foundation
In, usually occur and can not meet the problem of cable adapter because of waterproof anti-corrosion or does not carry out waterproof anti-corrosion processing
To the soft base monitoring measurement after the construction time of building highway, especially relatively long time work, expressway construction is restricted
Development.For this technical problem, the present invention develops a kind of cable adapter for Expressway Soft Foundation Monitoring and protected
Device and application method, can reach the purpose of soft base monitoring measurement, meet the requirement of engineering.
The content of the invention
Goal of the invention:In order to solve the sealed problems, Elongated cable wire such as the waterproof anti-corrosion that is run into cable adapter
Engineering service life, the present invention propose it is a kind of for the cable adapter protector of Expressway Soft Foundation Monitoring and user
Method.
Technical scheme:The cable adapter protector for Expressway Soft Foundation Monitoring of the present invention, including be equipped with
The interior sealing cabin and external seal cabin of cable, the interior sealing cabin are sheathed in external seal cabin, the two ends peace in the interior sealing cabin
Equipped with interior sealing seat, it is equiped with the interior sealing cabin on cable interface connecting portion, the cable line interface connecting portion
Cable line interface fixing lock is installed, sealant is filled between the external seal cabin and interior sealing cabin.
Specifically, the cable line interface connecting portion has on the body that semicylinder stainless steel material is made, body
Portion is cable adapter plane, and cable adapter is carved with S type grooves transversally on a plane.
Specifically, the cable line interface fixing lock is distributed on S type grooves, including by screw, surface insulation sheet metal
And screw.5 at each 1 of two ends, intermediate cable wire terminal, and groove processing is also carried out.
Specifically, one kind in plastics, stainless steel or acid resisting steel of the material in the interior sealing cabin and external seal cabin or
It is several.Inside and outside two layers of sealed compartment can select different materials to make, and the foundation of material selection is the design grade of engineering, locality
The acid-base property of environment, the timeliness of soft base monitoring.
Specifically, the two ends in the external seal cabin are provided with external seal seat.This is played jointly with interior sealing cabin and sealant
Triple protection effect to the sealed waterproof anti-corrosion at cable adapter.
Specifically, the sealant includes hitting real argillic horizon, hitting real alkaline mixed layer and hit real argillic horizon from outside to inside
Infiltration coefficient≤1.0 × 10 for hitting real argillic horizon-7cm/s;
The alkaline mixed layer in fact that hits is uniformly mixed by the component of following mass fraction:Quick lime 15%, cement 15%,
Clay 70%.Because quick lime and cement are alkaline absorbent materials.Reached using the physics and chemism of three-layer sealed material
Protection to cable adapter, the engineering service life of Elongated cable wire.
The present invention proposes the method protected using device as claimed in claim 1 to cable adapter, bag simultaneously
Include following steps:
Step 1, the joint of cable is arranged on cable line interface connecting portion;
Step 2, cable line interface connecting portion is pushed into interior sealing cabin;
Step 3, interior sealing seat is closed, the inner chamber of cable from interior sealing seat is passed;
Step 4, interior sealing cabin is pushed into the centre position in external seal cabin;
Step 5, reality is hit using hitting the dry density of real instrument on request by three-layer sealed material;
Step 6, external seal seat is closed, the inner chamber of cable from external seal seat is passed.
In use, cable enters from the two ends of device, the centre position that cable line interface connecting portion is specified is reached, will
Cable silk, which is contacted with each other, at two cable adapters smoothes out with the fingers suitable, is fixed and fastened by cable line interface fixing lock, uniform speed slow is light
Interior sealing cabin is advanced into, interior sealing seat is closed, the inner chamber of cable from interior sealing seat is passed;Uniform speed slow touches interior sealing cabin and entered
Enter external seal cabin centre position, and the both sides space between interior external seal cabin is using hitting the dry density of real instrument on request by three
Layer encapsulant hits reality, closes external seal seat, and the inner chamber of cable from external seal seat is passed.
Beneficial effect:A kind of cable adapter protector for Expressway Soft Foundation Monitoring of the present inventor and use
Method, it is simple in constructing operation, safe, practical;Cable adapter can be realized very well using the groove and fixing lock of S types
Firm overlap joint at cable adapter;Cable adapter protector possesses inside and outside two layers of sealed compartment and three-layer sealed material,
Play the triple protection effect to the sealed waterproof anti-corrosion at cable adapter, the engineering service life of Elongated cable wire.
Brief description of the drawings
Fig. 1 is the present inventor's embodiment cable adapter protector schematic diagram;
Fig. 2 is interior sealing cabin schematic diagram in Fig. 1;
Fig. 3 is cable line interface connecting portion schematic diagram in Fig. 1;
Fig. 4 is Fig. 1 China and foreign countries sealed compartment schematic diagram;
Fig. 5 be the embodiment of the present invention in hit real instrument schematic diagram;
In figure:1-cable line interface connecting portion, 2-cable line interface fixing lock, 3-interior sealing cabin, 4-interior sealing
Seat, 5-external seal cabin, 6-hit real clay material, 7-hit real alkaline mixing material, 8-hit real clay material, 9-external seal
Seat, 10-hit real base, 11-hit real power transmission guide rod, 12-compaction hammer, 13-hit real cushion block.
Embodiment
In order that the technical problems to be solved by the invention and beneficial effect are clearer, clear, below in conjunction with accompanying drawing and
Embodiment, the present invention will be described in further detail.But protection scope of the present invention is not limited to the embodiment.
Embodiment:
The cable adapter protector for Expressway Soft Foundation Monitoring of the present embodiment as shown in Figure 1, Figure 2, Fig. 3 and Fig. 4
It is shown, including cable line interface connecting portion 1, cable line interface fixing lock 2, interior sealing cabin 3, interior sealing seat 4, external seal cabin 5
With external seal seat 9.Wherein cable line interface connecting portion 1 is that semicylinder stainless steel material makes, and its top is cable
Interface plane, is carved with the groove of S types transversally on a plane.Cable line interface fixing lock 2 is by screw, surface insulation sheet metal, spiral shell
Hole is constituted, and is distributed on S type grooves, each 1 of two ends, 5 at intermediate cable wire terminal, and has also been carried out groove processing.Cable
Wire terminal protector possesses inside and outside two layers of sealed compartment and three-layer sealed material, plays to sealed anti-at cable adapter
The etch-proof triple protection effect of water.Real three-layer sealed material is respectively hit in both sides space between inside and outside sealed compartment, is divided from outside to inside
It is not to hit real clay material 6, hit real alkaline mixing material 7 and hit real clay material 8.
It is matching used to hit real instrument as shown in figure 5, including hitting real base 10, hitting real power transmission guide rod 11, the and of compaction hammer 12
Hit real cushion block 13.Real clay material permeability is hit than relatively low, its infiltration coefficient can be less than or equal to 1.0 × 10-7cm/
s;It is that 15% cement, 70% clay is uniformly mixed, and quick lime by 15% quick lime to hit real alkaline mixing material
It is alkaline absorbent material with cement.The protection to cable adapter is reached using the physics and chemism of three-layer sealed material
Protection, the engineering service life of Elongated cable wire.
The method protected using said apparatus to cable adapter is as follows:
(1)Prepare and hit real required cohesive soil 1.5kg, moisture control is 17.8% ~ 21.8%.
(2)Prepare and hit real required cohesive soil 560g, moisture control 3% ~ 8%, and with 120g cement, 120g quick limes
Mixing is mixed thoroughly.
(3)Cable enters from two ends, reaches the centre position that cable line interface connecting portion is specified, two cables are connect
Cable silk, which is contacted with each other, at head smoothes out with the fingers suitable.
(4)Fixed and tightened using the key screw surface insulation sheet metal of cable line interface fixing lock so that cable adapter
Place is firmly overlapped, and uniform speed slow is touched into interior sealing cabin, closes interior sealing seat, and the inner chamber of cable from interior sealing seat is passed;
Uniform speed slow touches interior sealing cabin into external seal cabin centre position.
(5)The cable of external seal cabin one end is passed through and hits real base, and is partially placed into protruding above for real base is hit outside
The locus of sealed compartment one end, and hold up and hit real base and sealed compartment.
(6)It is 298.13 ~ 308.25g to weigh required cohesive soil quality, and the other end loading of sealed compartment refers to outward
Fixed 298.13 ~ 308.25g of cohesive soil.By cable through real power transmission guide rod is hit, cohesive soil is carried out with compaction hammer to hit reality, done
Density domination is in 1.68 ~ 1.73g/cm3, tamp first layer clay encapsulant.
(7)Real cohesive soil is hit to first layer and carries out shaving processing, and weighs alkaline 196.85 ~ 202.76g of mixing material, is done
Density domination is in 1.33 ~ 1.37g/cm3, tamp second layer alkalescence mixing encapsulant.
(8)Real alkaline mixing material is hit to the second layer and carries out shaving processing, and weighs 302.16 ~ 312.42g of cohesive soil, is done
Density domination is in 1.68 ~ 1.73g/cm3, tamp third layer clay encapsulant.
(9)Unload and hit real power transmission guide rod, be laid flat cable adapter protector, continue to unload and hit real base, reality is hit in dismounting
Base protrudes above part, and will hit real cushion block and be fixed on and hit on real base, the cable for having completed to hit that real end
Real cushion block and real base is hit through hitting, and erected.
(10)Repeat(6)、(7)、(8)Process, complete other end encapsulant and hit positive activity.
(11)The external seal seat at two ends is closed, the inner chamber of cable from external seal seat is passed.