CN212254953U

CN212254953U - Earthwork backfill compactness detection device

Info

Publication number: CN212254953U
Application number: CN202021112604.2U
Authority: CN
Inventors: 李强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-12-29
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a detection device for earthwork backfill compactness, including the bottom plate that gathers materials and install the geotome at the bottom plate upside that gathers materials, be equipped with the round hole on the bottom plate that gathers materials, the stopper has been installed to the round hole upper end, is equipped with first perforation in the stopper, and the geotome is equipped with to first perforation endotheca, is equipped with the geotome in the geotome, and the regulating block has been installed to the geotome upper end, is equipped with the silk hole in the regulating block, and the silk hole endotheca is equipped with the lead screw, and the board that unloads soil has been. Through setting up the spirit level on one side of the bottom plate that gathers materials, can make the sample of the geotome more squarely, the geotome outer end is equipped with the external screw thread, is equipped with the first perforation of internal screw thread in the stopper, geotome threaded connection is in first perforation, and the measurement personnel only need rotate the knob of geotome upper end and can slowly move down the geotome, and the stopper has guaranteed the regularity of the sample of the soil of gathering with the combined action of geotome, and it is convenient to dig the process of getting.

Description

Earthwork backfill compactness detection device

Technical Field

The utility model belongs to the technical field of the building detection device, concretely relates to compactness detection device is backfilled to earthwork.

Background

The earthwork backfill is the fill of the building engineering, and mainly comprises foundation fill, foundation pit or pipe ditch backfill, indoor terrace backfill, outdoor site backfill leveling and the like.

The earthwork backfilling step is a process of cleaning the ground on the bottom of the foundation pit, checking soil quality, layering and paving soil, raking, tamping, compacting, checking compactness, trimming, leveling and accepting, wherein after each layer of the backfilled soil is tamped, the backfilling sampling is carried out according to the specification, the compaction degree of dry soil is measured, and after the requirement is met, the paving soil of the previous layer is carried out, wherein the compaction degree refers to the ratio of the dry bulk density of the compacted soil to the standard dry density of the soil, the relative size of the attraction force and the repulsion force among soil particles determines the structure of the compacted soil in the compacting process, when the water content of the soil sample is small, the attraction force among the particles is large, and the soil particles can not effectively overcome under the action of a certain external compacting function to relatively move, at the moment, the compaction effect is poor, the water content is gradually increased and thickened by combining with a water film, the soil particles are reduced, and the soil particles are easy to move and compact under the same function condition, the compaction effect is better, after the water content is increased to a certain degree, free water appears in pores, the expansion effect of a combined water film is not obvious any more, the reduction of the gravitation is not obvious, meanwhile, the effect of preventing soil particles from moving after the free water is filled in the pores is gradually obvious along with the increase of the water content, so the compaction effect is reduced on the contrary, the compaction degree of soil needs to be detected in real time due to loose and soft backfilled soil, the conventional method is to select three thousandths of the compaction area for multi-point sampling measurement, wherein, the sand filling method is the main method for measuring the compaction degree in many engineering fields at present, firstly, a test pit is dug in a selected area, the mass of a sample is weighed, the water content of the sample is measured, sand is filled in a sand containing bottle, a valve is closed, the sand containing bottle is weighed, the total mass of a funnel and the sand is accurate to 10g, a density measuring device is inversely placed on a dug empty opening, opening a valve to enable sand to be injected into the test pit, wherein the sand should not vibrate in the sand injection process, closing the valve when the test pit is filled with the sand, weighing the total mass of the sand bottle, the funnel and the residual sand, and accurately measuring the total mass to 10g, calculating the mass of the standard sand used for filling the test pit, wherein the density PO of the sample is the mass MP of the sample taken from the test pit divided by the mass MS of the standard sand used for filling the test pit divided by the density PS of the standard sand. The dry density pd of the sample is { mass MP of the sample taken from a test pit divided by (1+0.01 omega)/Mass (MS) of standard sand used for filling the test pit divided by density (PS) of the standard sand, in the whole operation process of the sand filling method, the most time and labor is the stage of digging the test pit, usually, a material collecting bottom plate with a round hole in the middle is flatly placed on a detection point, then, a tester puts a soil taking shovel into the round hole area, and uses a hammer to knock the soil taking shovel to shovel backfill soil in the round hole area little by little, so that the time and labor are more consumed for the operator, and in the soil taking process, the size of the inner wall diameter of the soil taking pit generally has a certain error with the diameter of the round hole, and the measured value is not accurate enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compactness detection device is backfilled to the earthwork to solve prior art's problem that wastes time and energy.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a compactness detection device is backfilled to earthwork, includes the bottom plate that gathers materials and installs the geotome at the bottom plate upside that gathers materials, be equipped with the round hole on the bottom plate that gathers materials, the stopper has been installed to the round hole upper end, be equipped with first perforation in the stopper, first perforation endotheca is equipped with the geotome, be equipped with the silo in the geotome, the regulating block has been installed to the silo upper end, be equipped with the silk hole in the regulating block, the silk downthehole cover is equipped with the lead screw, the board of unloading is installed to lead screw one end, the lead screw other end has been installed and.

Preferably, a first fixing block is arranged at one end of the aggregate bottom plate, and a level gauge is arranged at the upper end of the first fixing block.

Preferably, the second fixed block has been installed to the bottom plate other end that gathers materials, second fixed block facial make-up is equipped with the display screen of weighing, the battery has been installed to display screen one end of weighing, be equipped with the baffle in the bottom plate that gathers materials, baffle one side is equipped with the weighing groove, the pressure plate has been installed to the bottom end of weighing groove, weighing sensor has been installed to pressure plate one end, the battery output is connected to the weighing sensor input, the display screen input of weighing is connected to the weighing sensor output.

Preferably, first perforation intercommunication is in the round hole, be equipped with the internal thread in the first perforation, the geotome outer end is equipped with the external screw thread, geotome threaded connection is in first perforation, the silk hole communicates in the silo of getting, it installs in the silo of getting to unload the native board, regulating block one end is equipped with the regulation hole, the regulation hole endotheca is equipped with the dead lever, the lead screw is equipped with the second perforation corresponding to the regulation hole position, the dead lever stretches out the end and inserts and establish in the second perforation.

Preferably, the bottom end of the soil sampler is annularly provided with a tooth block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a cubic metre of earth backfill compactness detection device: through set up the weighing groove on the bottom plate that gathers materials, set up pressure plate, weighing sensor in the weighing groove, the weighing sensor output is connected the display screen that weighs, and the back-filled soil diameter that the geotome was dug into the groove of weighing just accessible weighing display screen shows real-time quality, compares with need hand-carry mass balance in the past, has reduced the carrying capacity of equipment when back-filled soil detects, has improved work efficiency.

The utility model provides a cubic metre of earth backfill compactness detection device: through setting up the spirit level on one side of the bottom plate that gathers materials, can make the sample of the geotome institute more squarely, the geotome outer end is equipped with the external screw thread, the stopper that bottom plate bottom round hole upper end set up gathers materials, be equipped with the first perforation of internal screw thread in the stopper, geotome threaded connection is in first perforation, the inspector only needs to rotate the knob of geotome upper end and can slowly move down the geotome, the regularity of the sample of the earth institute has been guaranteed with the combined action of geotome to the stopper, and it is convenient to dig the process of getting.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is a front partially cut-away schematic view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion of fig. 2.

In the figure: the device comprises a material collecting bottom plate 1, a soil sampler 2, a circular hole 3, a limiting block 4, a first perforation 5, a material taking groove 6, an adjusting block 7, a screw hole 8, a screw rod 9, a soil unloading plate 10, a knob 11, a first fixing block 12, a level meter 13, a second fixing block 14, a weighing display screen 15, a storage battery 16, a partition plate 17, a weighing groove 18, a pressure plate 19, a weighing sensor 20, an internal thread 21, an external thread 22, an adjusting hole 23, a fixing screw 24, a second perforation 25 and a tooth block 26.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 and 2, an earthwork backfill compactness detection device comprises an aggregate bottom plate 1 and a soil sampler 2 which is connected to the upper side of the aggregate bottom plate 1 through threads, a first fixed block 12 is welded at the right end of the aggregate bottom plate 1, a level 13 is adhered to the upper end of the first fixed block 12, the level 13 is a zc31039 bubble level, the level 13 is used for adjusting the levelness of the aggregate bottom plate 1, so that the regularity of a soil sample taken by the soil sampler 2 is ensured, a second fixed block 14 is welded at the front end of the aggregate bottom plate 1, a weighing display screen 15 is connected to the second fixed block 14 in a buckling mode, the weighing display screen is XK3101N, the input end of the weighing display screen 15 is connected with the output end of a storage battery 16, the model of the storage battery 16 is 55D23, a partition plate 17 is welded in the aggregate bottom plate 1, a weighing groove 18 is arranged at the left side of the partition plate 17, the bottom end of the weighing groove 18 is adhered, the model of the weighing sensor 20 is HZC-T, the input end of the weighing sensor 20 is connected with the output end of the storage battery 16, the output end of the weighing sensor 20 is connected with the input end of the weighing display screen 15, the design facilitates the soil digging and taking of the soil sampler 2 to directly weigh in the weighing groove 18, and the carrying of the weighing equipment is reduced.

Referring to fig. 1, 2 and 3, a round hole 3 is formed in a material collecting bottom plate 1, a limiting block 4 is welded at the upper end of the round hole 3, the limiting block 4 is of a cylindrical structure, a vertical first through hole 5 is formed in the limiting block 4, a soil sampler 2 is connected with the first through hole 5 through an internal thread, a soil sampling groove 6 is formed in the soil sampler 2, an adjusting block 7 is welded at the upper end of the soil sampling groove 6, the adjusting block 7 is of a square structure, a screw hole 8 is formed in the adjusting block 7, a lead screw 9 is rotatably connected in the screw hole 8, a soil unloading plate 10 is welded at the bottom end of the lead screw 9, the soil unloading plate 7 is of a disc-shaped structure, the diameter of the soil unloading plate 7 is smaller than four millimeters of the soil sampling groove 6, a knob 11 is welded at the upper end of the lead screw 9, the first through hole 5 is communicated with the round hole 3, an internal thread 21 is formed in the, unload native board 10 sliding connection in the groove 6 of fetching earth, 7 right-hand members of regulating block are equipped with

regulation hole

23, 23 female connection in the regulation hole has clamping screw 24, lead screw 9 is equipped with the second corresponding to regulation hole 23 position and perforates 25, clamping screw 24 stretches out end sliding connection in the second perforates 25, 2 bottom ring weld of geotome has tooth piece 26, tooth piece 26 is the triangular cone structure, this design makes geotome 2 move down the in-process of fetching earth, make geotome 2 contact surface sharper, the geotome of being convenient for.

When the compaction degree of the backfill soil needs to be detected, the aggregate bottom plate 1 is placed on a selected detection point, the levelness of a level meter 13 on a first fixing block 12 is observed after the aggregate bottom plate 1 is horizontally placed on the detection point, if the level meter 13 shows that the level has errors, a cushion block needs to be placed in the corner area at the lower end of the aggregate bottom plate 1, the horizontal state of the aggregate bottom plate 1 is kept, after the collection bottom plate 1 is placed, a soil sampler 2 is connected into a first through hole 5 on a limiting block 4 in a threaded manner, a rotating handle 11 is rotated clockwise, the soil sampler 2 is moved downwards to the bottom end of the first through hole 5, then the soil sampler 2 is swung, the backfill soil in the tooth block 26 area at the lower end of the soil sampler 2 is broken, finally, the rotating handle 11 is rotated out, the soil sampler 5 is rotated out, a square pit groove is left at the lower side of a circular hole 3, and as a part of the backfill soil is not taken out, the backfill soil needs to be taken out, the lower end of the rotated soil sampler 2 is aligned with the area of the weighing groove 18, the fixing screw 24 is pulled out from the adjusting hole 23 and the second through hole 25, the knob 11 is rotated clockwise, the soil unloading plate 10 at the tail end of the screw rod is driven to move downwards through the rotation of the screw rod 9 in the screw hole 8, so that the backfilled soil in the soil sampling groove 6 is slowly pushed out and finally falls into the weighing groove 18, the pressure plate 19 is bonded at the bottom end of the weighing groove 18, the pressure plate 19 is connected with the weighing sensor 20, the mass of the soil sampling is displayed through the weighing display screen 15 by the weighing sensor 20, the detected personnel record the obtained data and calculate the compaction degree of the backfilled soil, the mass weighing is combined on the aggregate bottom plate 1, the carrying capacity of the weighing equipment of the detected personnel is reduced, and compared with the conventional soil shoveling device which is arranged on the soil sampler 2, the soil sampler has the characteristics of convenience and high efficiency.

Claims

1. The utility model provides a cubic metre of earth backfill compactness detection device, includes bottom plate (1) and installs geotome (2) at bottom plate (1) upside that gathers materials, its characterized in that: be equipped with round hole (3) on bottom plate (1) gathers materials, stopper (4) have been installed to round hole (3) upper end, be equipped with first perforation (5) in stopper (4), first perforation (5) endotheca is equipped with geotome (2), be equipped with geotome (6) in geotome (2), regulating block (7) have been installed to geotome (6) upper end, be equipped with silk hole (8) in regulating block (7), lead screw (9) have been established to silk hole (8) endotheca, earth unloading board (10) have been installed to lead screw (9) one end, the lead screw (9) other end has been installed and has been revolved (11).

2. The earth backfill compactness detection device according to claim 1, characterized in that: a first fixing block (12) is installed at one end of the aggregate bottom plate (1), and a level gauge (13) is installed at the upper end of the first fixing block (12).

3. The earth backfill compactness detection device according to claim 2, characterized in that: second fixed block (14) have been installed to bottom plate (1) the other end of gathering materials, second fixed block (14) facial make-up is equipped with weighing display screen (15), battery (16) have been installed to weighing display screen (15) one end, be equipped with baffle (17) in bottom plate (1) of gathering materials, baffle (17) one side is equipped with weighing groove (18), pressure plate (19) have been installed to weighing groove (18) bottom, weighing sensor (20) have been installed to pressure plate (19) one end, battery (16) output is connected to weighing sensor (20) input, weighing display screen (15) input is connected to weighing sensor (20) output.

4. The earth backfill compactness detection device according to claim 1, characterized in that: first perforation (5) communicate in round hole (3), be equipped with internal thread (21) in first perforation (5), geotome (2) outer end is equipped with external screw thread (22), geotome (2) threaded connection is in first perforation (5), silk hole (8) communicate in silo (6), unload native board (10) and install in silo (6), regulating block (7) one end is equipped with regulation hole (23), regulation hole (23) endotheca is equipped with clamping screw (24), lead screw (9) are equipped with second perforation (25) corresponding to regulation hole (23) position, clamping screw (24) stretch out the end and insert and establish in second perforation (25).

5. The earth backfill compactness detection device according to claim 1, characterized in that: the bottom end of the soil sampler (2) is annularly provided with a tooth block (26).