CN110093911A - A kind of horizontal-hole blasting test device under Soft Ground Improved By Vacuum Preloading treatment conditions - Google Patents

A kind of horizontal-hole blasting test device under Soft Ground Improved By Vacuum Preloading treatment conditions Download PDF

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Publication number
CN110093911A
CN110093911A CN201910495965.5A CN201910495965A CN110093911A CN 110093911 A CN110093911 A CN 110093911A CN 201910495965 A CN201910495965 A CN 201910495965A CN 110093911 A CN110093911 A CN 110093911A
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CN
China
Prior art keywords
cabinet
water
vacuum
penetration testing
water storage
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Pending
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CN201910495965.5A
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Chinese (zh)
Inventor
宋盛渊
于崇嘉
王清
王园
刘宇峰
孙立悦
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Jilin University
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Jilin University
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Publication date
Application filed by Jilin University filed Critical Jilin University
Priority to CN201910495965.5A priority Critical patent/CN110093911A/en
Publication of CN110093911A publication Critical patent/CN110093911A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00Investigation of foundation soil in situ
    • E02D1/02Investigation of foundation soil in situ before construction work
    • E02D1/027Investigation of foundation soil in situ before construction work by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/10Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

Abstract

The invention discloses the horizontal-hole blasting test devices under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions, it is intended to fill up blank in the prior art comprising water inlet pipe, water storage prepare case, penetration testing case, vacuum treatment chamber, collection water gaging case, connecting tube, vacuum pump;It includes that water storage prepares cabinet, hold-down support that water storage, which prepares case,;Penetration testing case includes penetration testing cabinet;Vacuum treatment chamber includes being vacuum-treated cabinet;Collecting water gaging case includes collection water gaging cabinet;Water storage prepares the top that cabinet is mounted on hold-down support, and hold-down support is mounted on ground;Penetration testing case is mounted on the left side that water storage prepares cabinet by penetration testing cabinet, the right end of penetration testing cabinet prepares cabinet with water storage and connect, the left end of penetration testing cabinet is connect with the right end of horizontal positioned vacuum processing cabinet, the left side bottom end for being vacuum-treated cabinet is connect with the collection water gaging cabinet placed vertically, one end of connecting tube is connect with cabinet is vacuum-treated, and the other end of connecting tube is controlled to a vacuum pump.

Description

A kind of horizontal-hole blasting test device under Soft Ground Improved By Vacuum Preloading treatment conditions
Technical field
The present invention relates to a kind of test devices, it more particularly relates to a kind of Soft Ground Improved By Vacuum Preloading treatment conditions Under horizontal-hole blasting test device.
Background technique
With the fast development of China coast urban economy and the growing tension of construction land, coastal waters recent deposit is utilized Mud carries out enclosing extra large land reclamation, it has also become the effective way of coastal cities alleviation shortage of land resource.And vacuum method is A kind of processing method of novel reinforcing reclaimed ground, it is low etc. excellent with its short time limit, construction safety, nonpollution environment, expense It puts and is widely used in the engineering constructions such as coastal cities harbour, harbour, airport, industry and civil buildings.
Vacuum method is vacuumized after being inserted into vertical plastic draining board in the reclaimed ground to need reinforcement.Soil Under the action of negative pressure, gradually seepage flow reaches soil body discharging consolidation, gain in strength into vertical drainage plate to pore water therein to body Effect.When vacuum preloading processing, the pore water in the soil body is mainly based on horizontal seepage flow.However, the prior art can only test Under native state in the soil body water vertical infiltration coefficient, it is not yet found that the horizontal permeation under Soft Ground Improved By Vacuum Preloading treatment conditions tries It tests and test device.
Contain sticking grain in the hydraulic reclamation soil body, when sticky content is high, sticking grain meeting silting plastic draining board, and then influence pore water Infiltration, finally will affect the effect of barged-in fill body discharging consolidation, gain in strength.In addition, the vacuum degree in the soil body is also to influence One of principal element of soil stabilization.Therefore, it is necessary to which horizontal under developing a kind of Soft Ground Improved By Vacuum Preloading treatment conditions is seeped Saturating coefficient testing device, the final research realized to relationship between sticky content in the soil body, vacuum degree, discharging consolidation effect.
Summary of the invention
The technical problem to be solved by the present invention is to be to fill up blank in the prior art, a kind of vacuum preloading is provided Horizontal-hole blasting test device under the conditions of basement process.
In order to solve the above technical problems, the present invention is achieved by the following technical scheme: a kind of vacuum preloading Horizontal-hole blasting test device under the conditions of basement process includes water inlet pipe, water storage preparation case, penetration testing case, is vacuum-treated Case, collection water gaging case and vacuum pump;
It includes that water storage prepares cabinet hold-down support identical with 2 structures that the water storage, which prepares case,;
The penetration testing case includes penetration testing cabinet;
The vacuum treatment chamber includes vacuum processing cabinet;
The collection water gaging case includes having collection water gaging cabinet;
One end of the water inlet pipe prepares in case from the top insertion water storage that water storage prepares cabinet, the other end of water inlet pipe It is connect with water source;Two base angles that water storage prepares bottom on the right side of cabinet are mounted on the identical hold-down support of 2 structures placed vertically Top, water storage prepare cabinet bottom hold-down support identical with 2 structures between be vertical be fixedly connected;Penetration testing case It is horizontally mounted at the left side that water storage prepares cabinet by penetration testing cabinet, the right end and water storage of penetration testing cabinet prepare case Rectangular through-hole on body left side wall is tightly connected, right end and infiltration of the vacuum treatment chamber by horizontal positioned vacuum processing cabinet The left end for testing cabinet is tightly connected, and vacuum treatment chamber is by being vacuum-treated the left side bottom end of cabinet and the survey of catchmenting placed vertically The end sealing of measuring tank body connects, and the bottom end of collection water gaging cabinet is mounted on ground, and the output end of vacuum pump passes through connecting tube It is tightly connected with the left tank wall for being vacuum-treated cabinet.
Water storage described in technical solution prepare case further include have overflow pipe, spilling water tube control flap, level scale line, every Water plate vertical strip identical with 2 structures;The closed at one end of the horizontal positioned overflow pipe is mounted on water level quarter It spends on the spilling water pipe through-hole at line height, is threadedly coupled between overflow pipe and spilling water pipe through-hole, the installation of spilling water tube control flap On overflow pipe;The identical vertical strip of 2 root knot structures is vertically pasted onto the inside that water storage prepares tank wall before and after cabinet, 2 root knots The identical vertical strip of structure and water storage prepare that the left box body wall of cabinet is parallel, and prepare with water storage in the left box body wall of cabinet Lateral extent is equal, i.e., the chute width being equipped with water-stop sheet on front and back box body wall inside is equal, and chute width and water storage prepare The thickness of water-stop sheet in case is equal;Water-stop sheet is mounted on water storage and prepares in slideway set by the front and back tank wall inside of cabinet, To be slidably connected between water-stop sheet and slideway, the identical hold-down support of 2 structures is mounted on ground.
Water storage described in technical solution prepares the hollow shell that cabinet is the cuboid being made using tempered glass Body part, the top that water storage prepares cabinet are unlimited, and the middle that water storage prepares the right case wall of cabinet is provided with installation spilling water The spilling water pipe through-hole of pipe;The middle and lower part that water storage prepares the left box body wall of cabinet is unlimited, that is, is provided with a rectangular through-hole, square The front and rear width that the length dimension and water storage of shape through-hole prepare cabinets cavity is equal sized, water storage prepare the front and rear width of cabinet with The front and rear width of penetration testing cabinet in penetration testing case is equal, the infiltration in the width dimensions and penetration testing case of rectangular through-hole The width dimensions up and down of test cabinet are equal thoroughly.
Penetration testing case described in technical solution further include have the section A, B-section, plastic draining board, earth-retaining steel wire, Head A measurement pipe and head B measurement pipe;The section A is end to end red by drawing along penetration testing cabinet surrounding No. 1 rectangular section determined by colo(u)r streak item, longitudinal asymmetric axis of No. 1 rectangular section perpendicular to penetration testing cabinet, the section A position At the position right end 5-10cm apart from penetration testing cabinet;The B-section is by drawing along penetration testing cabinet surrounding No. 2 rectangular sections determined by end to end blue lines, No. 2 rectangular sections are perpendicular to the longitudinally asymmetric of penetration testing cabinet Axis, No. 2 rectangular sections are located at the left end position 5-10cm apart from penetration testing cabinet;Plastic draining board uses 4 structures Identical fixing screws are mounted in the left end of penetration testing cabinet, and parallel within the left side of B-section;Earth-retaining steel wire Netcom It crosses standing screw to be mounted in the right end of penetration testing cabinet, and parallel within the right side in the section A;Head A measurement pipe uses It is threadedly coupled on the A through-hole being mounted on penetration testing cabinet;Head B measurement pipe is mounted on penetration testing case using threaded connection On B through-hole on body.
Penetration testing cabinet described in technical solution is the hollow shell for the cuboid being made using tempered glass The left and right ends of body part, penetration testing cabinet are unlimited, and the interior chamber size and water storage of penetration testing cabinet prepare a left side for cabinet The inner-cavity structure of the rectangle inner via hole of box body wall middle and lower part setting is equal sized, and the outer dimension and water storage of penetration testing cabinet are quasi- The contour structure size for the rectangle inner via hole that the left box body wall middle and lower part of standby cabinet is arranged is equal, is provided in penetration testing cabinet It is provided with installation head A measurement pipe at the under casing body wall of the section A and B-section and the A through-hole and B through-hole of head B measurement pipe are installed.
Vacuum treatment chamber described in technical solution further includes having pressure vacuum gauge;The vacuum processing cabinet is to use The hollow shell part for the cuboid that tempered glass is made is vacuum-treated cabinet right end and is unlimited, is vacuum-treated cabinet The outer dimension of right end and the outer dimension and inner cavity of interior chamber size and penetration testing cabinet left end are equal sized, vacuum treatment chamber The left end of the bottom of body is unlimited, that is, is provided with a rectangular through-hole, the outer dimension of rectangular through-hole and interior chamber size sum aggregate The outer dimension of collection water gaging cabinet upper end in water gaging case and inner cavity are equal sized;It is vacuum-treated on the left side tank wall of cabinet It is provided with connection through-hole, connectivity port is mounted on connection through-hole;It is vacuum-treated on the top case wall of cabinet and is provided with vacuum pressure Table interface;Pressure vacuum gauge is mounted on pressure vacuum gauge interface.
Collection water gaging case described in technical solution further includes having water graduation mark, drainpipe and draining tube control flap; The collection water gaging cabinet is the hollow shell part for the cuboid being made using tempered glass, collection water gaging cabinet Top is unlimited, that is, is set as a rectangular through-hole, in the outer dimension of rectangular through-hole and interior chamber size and vacuum treatment chamber Vacuum processing cabinet bottom left end rectangular through-hole outer dimension and inner cavity it is equal sized;The water graduation mark is vertical Ground is arranged equally spaced on the preceding tank wall of collection water gaging cabinet, and water reading is labeled in the survey of catchmenting relative to water graduation mark On measuring tank body, drainpipe is mounted on the lower part of the right case wall of collection water gaging cabinet, and draining tube control flap is mounted on drainpipe On.
Compared with prior art the beneficial effects of the present invention are:
1. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention is mainly answered Horizontal permeation is carried out to plastic draining board for the water under Soft Ground Improved By Vacuum Preloading treatment conditions, in plastic draining board surrounding soil Test.The device technique has filled up the blank in existing background technique, has initiative.
2. the horizontal-hole blasting test device structure letter under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention It is single, convenient for assembling, can be used for testing under different vacuum degrees, in the different sticky content soil bodys water horizontal-hole blasting.It is extracting Under the suction function being vacuum formed, gradually seepage flow reaches soil body discharging consolidation, gain in strength into plastic draining board to pore water Effect.The device technique helps to study sticky content, vacuum degree and draining in the soil body under Soft Ground Improved By Vacuum Preloading treatment conditions Relationship between consolidation effect optimizes reinforcing barged-in fill for application vacuum method and provides test device and test basis.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is the horizontal-hole blasting test device structure under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention The axonometric projection view of composition.
Fig. 2 is to store up in horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention Level for case structure composition schematic diagram;
Fig. 3 is to seep in horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention The right view of saturating test box;
Fig. 4 is to seep in horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention The left view of saturating test box;
In figure: 1. water inlet pipes, 11. water inlet tube control flaps, 2. water storages prepare case, and 20. water storages prepare cabinet, 21. spilling waters It manages, 22. spilling water tube control flaps, 23. level scale lines, 24. hold-down supports, screw thread between 24-1. inner and outer pipes, 25. water-stop sheets, 25-1. water proof adhesive tape, 25-2. handle, 26. vertical strips, 3. penetration testing casees, 30. penetration testing cabinets, the section 31.A, The section 32.B, 33. plastic draining boards, 33-1. fixing screws, 34. earth-retaining steel wires, 34-1. standing screw, 35. head A measurement Pipe, 36. horizontal permeation directions, 37. head B measurement pipes, 4. vacuum treatment chambers, 40. vacuum processing cabinets, 41. pressure vacuum gauges, 42. connectivity port, 5. collection water gaging casees, 50. collection water gaging cabinets, 51. water graduation marks, 52. waters reading, 53. drainpipes, 54. draining tube control flap, 6. connecting tubes, 7. vacuum pumps.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
Refering to fig. 1, the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions of the present invention Prepare case 2, penetration testing case 3, vacuum treatment chamber 4, collection water gaging case 5, connecting tube 6, vacuum pump 7 including water inlet pipe 1, water storage.
The water inlet pipe 1 is the water supply line that water storage prepares case 2, and selection material is PPR pipe, one end of water inlet pipe 1 The top insertion water storage for preparing case 2 from water storage prepares in case 2, and the other end of water inlet pipe 1 is connect with water source;Pacify on water inlet pipe 1 Equipped with water inlet tube control flap 11, for controlling the water flow of water inlet pipe 1.
It includes that water storage prepares cabinet 20, overflow pipe 21, spilling water tube control flap 22, water level that the water storage, which prepares case 2, The identical vertical strip 26 of the identical hold-down support 24 of 23,2 structures of graduation mark, water-stop sheet 25 and 2 structure.
The water storage prepares the hollow shell part that cabinet 20 is the cuboid being made using tempered glass, water storage The top for preparing cabinet 20 is unlimited, and the middle that water storage prepares the right case wall of cabinet 20 is provided with installation overflow pipe 21 Spilling water pipe through-hole;The middle and lower part that water storage prepares the left box body wall of cabinet 20 is unlimited, that is, is provided with a rectangular through-hole, rectangle The front and rear width that the length dimension and water storage of through-hole prepare 20 inner cavity of cabinet is equal sized, and water storage prepares the front and rear width of cabinet 20 It is equal with the front and rear width of penetration testing cabinet 30 in penetration testing case 3, the width dimensions and penetration testing case 3 of rectangular through-hole In penetration testing cabinet 30 width dimensions up and down it is equal;
The overflow pipe 21 is the overflow pipe that water storage prepares case 2, and selection material is PPR pipe, and horizontal positioned overflows The closed at one end of water pipe 21 is mounted on the spilling water pipe through-hole that level scale line 23 is highly located, and is in screw thread with spilling water pipe through-hole Connection, is equipped with spilling water tube control flap 22 on overflow pipe 21, and the opening size by adjusting spilling water tube control flap 22 makes The water level that water storage prepares in case 2 is obtained to be maintained at level scale line 23.
The hold-down support 24 is made of inner and outer tubes, and connection screw thread 24-1 is provided on the outside of inner tube, outer tube Inside is provided with connection screw thread 24-1;
Hold-down support 24 can adjust its height, the identical fixed branch of two structures by the connection screw thread 24-1 between inner and outer pipes Seat 24 is mounted on water storage vertically symmetrically and prepares at the front-and-back angle of 20 bottom right of cabinet, the identical hold-down support 24 of 2 structures Bottom end be mounted on ground.
The vertical strip 26 is set to the left side that water storage prepares cabinet 20;Vertical strip 26 is using tempered glass system The component of strip made of work.
The identical vertical strip 26 of 2 root knot structures is vertically pasted onto the inside that water storage prepares 20 front and back tank wall of cabinet, 2 root knots The identical vertical strip 26 of structure is parallel with the water storage preparation left box body wall of cabinet 20, and prepares the left case of cabinet 20 with water storage The inner distance of body wall is equal, i.e., the chute width being equipped with water-stop sheet 25 on front and back box body wall inside is equal, which is The thickness that chute width and water storage prepare the water-stop sheet 25 in case 2 is equal.
The water-stop sheet 25 is rectangular armorplate glass, and the surrounding of water-stop sheet 25 is wound with water proof adhesive tape 25-1, To enhance the effect of water proof;The middle and upper part of water-stop sheet 25 is fixed with handle 25-2, can make water proof by push and pull bar 25-2 Plate 25 prepares the gap between 20 left box body wall of cabinet and vertical strip 26 along water storage and moves up and down;Water-stop sheet 25 is mounted on water storage Prepare to be in slideway in the gap between 20 left box body wall of cabinet and vertical strip 26.
The outside that water storage prepares the right case wall of cabinet 20 is arranged in the level scale line 23, level scale line 23 Height is concordant with the water storage preparation top of left box body wall penetration testing case 3 connected horizontally of cabinet 20;2 structures are identical solid Determine support 24 and be mounted on the bottom that water storage prepares case 2, the height by adjusting the identical hold-down support 24 of 2 structures makes water storage Prepare case 2 and whole device keeps horizontal.Water-stop sheet 25 is mounted on water storage and prepares cabinet 20 and 30 junction of penetration testing cabinet The water that the water storage on right side prepares that water storage can be prevented to prepare in case 2 in cabinet 20 before on-test enters in penetration testing case 3, When on-test, quickly extracts water-stop sheet 25 out, allow water to enter in the soil body of penetration testing case 3 and start permeability test.
The penetration testing case 3 includes penetration testing cabinet 30, the section A 31, B-section 32, plastic draining board 33, earth-retaining Steel wire 34, head A measurement pipe 35 and head B measurement pipe 37.
The penetration testing cabinet is the hollow shell part for the cuboid being made using tempered glass, and infiltration is surveyed The left and right ends of examination cabinet 30 are unlimited, and the interior chamber size and water storage of penetration testing cabinet prepare in the left box body wall of cabinet 20 The structure size of the rectangle inner via hole of lower part setting is equal, and the outer dimension and water storage of penetration testing cabinet prepare a left side for cabinet 20 The contour structure size of the rectangle inner via hole of box body wall middle and lower part setting is equal, and 30 right end of penetration testing cabinet and water storage prepare case Using sealing glue sticking between rectangular through-hole on 20 left box body wall of body;
The section A 31 is determined by the end to end red lines drawn along 30 surrounding of penetration testing cabinet No. 1 rectangular section, perpendicular to the longitudinal asymmetric axis of penetration testing cabinet 30, the section A 31 is located at penetration testing for No. 1 rectangular section At the position 5-10cm of the right end of cabinet 30;
The B-section 32 is determined by the end to end blue lines drawn along 30 surrounding of penetration testing cabinet No. 2 rectangular sections, No. 2 rectangular sections are located to No. 2 rectangular sections and seep perpendicular to the longitudinal asymmetric axis of penetration testing cabinet 30 Thoroughly at the position 5-10cm of test 30 left end of cabinet, the section A 31 is parallel to each other with B-section 32;
The plastic draining board 33 is the slab construction part of the plastic material of rectangle, the length and width dimensions of plastic draining board 33 Equal with the length and width dimensions of rectangular opening of 30 inner cavity of penetration testing cabinet, the quadrangle of plastic draining board 33 is symmetrically provided with 4 Circular through hole;The inner cavity quadrangle of 30 left end of penetration testing cabinet is symmetrically provided with corner, is arranged on each corner There is 1 threaded hole;Plastic draining board 33 is mounted on a left side for penetration testing cabinet 30 using the identical fixing screws 33-1 of 4 structures In end, and parallel within the left side of B-section 32;
The earth-retaining steel wire 34 is the netted slab construction part of steel wire of rectangle, 34 length and width dimensions of earth-retaining steel wire and The length and width dimensions of the rectangular opening of 30 inner cavity of penetration testing cabinet are equal, and the quadrangle of earth-retaining steel wire 34 is symmetrically arranged with steel plate, 1 circular through hole is provided on each steel plate;The inner cavity quadrangle of 30 right end of penetration testing cabinet is symmetrically provided with prominent Corner out is provided with 1 threaded hole on each corner;Earth-retaining steel wire 34 is mounted on infiltration by standing screw 34-1 and surveys In the right end for trying cabinet 30, and parallel within the right side in the section A 31;
The head A measurement pipe 35 is L-type structure part, is provided with graduation mark in head A measurement pipe 35, can directly read The head height in section is corresponded to out, at the section A 31 for being mounted on penetration testing cabinet 30 closed at one endly of head A measurement pipe 35 The setting of under casing body wall A through-hole on, using being threadedly coupled between head A measurement pipe 35 and the A through-hole of setting;
The head B measurement pipe 37 is L-type structure part, is provided with graduation mark in head B measurement pipe 37, can directly read The head height in section is corresponded to out, at the B-section 32 for being mounted on penetration testing cabinet 30 closed at one endly of head B measurement pipe 37 The setting of under casing body wall B through-hole on, using being threadedly coupled between head B measurement pipe 37 and the B through-hole of setting;Head A measurement Pipe 35 is identical as the structure of head B measurement pipe 37.
The vacuum treatment chamber 4 includes being vacuum-treated cabinet 40, pressure vacuum gauge 41, connectivity port 42.
The vacuum processing cabinet 40 is the hollow shell part for the cuboid being made using tempered glass, vacuum It is unlimited on the right side of processing cabinet 40, is vacuum-treated the outer dimension and interior chamber size and penetration testing cabinet 30 of 40 right end of cabinet The outer dimension of left end and inner cavity are equal sized, are vacuum-treated the right side of cabinet 40 and the left side of penetration testing cabinet 30 using close Sealing connection, the bottom for being vacuum-treated cabinet 40 are unlimited at leftward position, that is, are provided with a rectangular through-hole, rectangle The outer dimension and inner cavity ruler of collection 50 upper end of water gaging cabinet in the outer dimension of through-hole and interior chamber size sum aggregate water gaging case 5 It is very little equal;It is vacuum-treated on the left side tank wall of cabinet 40 and is provided with connection through-hole, the setting of connectivity port 42 is on connection through-hole, even Port 42 is connect to be used for one end airtight connection of vacuum treatment chamber 4 and connecting tube 6;It is vacuum-treated on 40 roof of cabinet and is provided with very Hollow pressure gauge interface;
The pressure vacuum gauge 41 uses precision stainless steel digital display manometer;Pressure vacuum gauge 41 is mounted on vacuum processing On the pressure vacuum gauge interface on 40 top of cabinet, for measuring the vacuum degree being vacuum-treated in cabinet 40.
The vacuum pump 7 uses unit contraction rotary-vane vacuum pump, and the output end of vacuum pump 7 and the other end of connecting tube 6 connect It connects, one end of connecting tube 6 and the connectivity port 42 being vacuum-treated on the left tank wall of cabinet 50 are tightly connected, and vacuum pump 7 passes through it Pedestal is fixed on ground.
The collection water gaging case 5 include collection water gaging cabinet 50, water graduation mark 51, water reading 52, drainpipe 53, Drain tube control flap 54.
The collection water gaging cabinet 50 is the hollow shell part for the cuboid being made using tempered glass, is catchmented The top of measurement cabinet 50 is unlimited, that is, is set as a rectangular through-hole, the outer dimension of rectangular through-hole and interior chamber size and The outer dimension of the rectangular through-hole of vacuum processing 40 bottom left end of cabinet in vacuum treatment chamber 4 and inner cavity are equal sized, described Water graduation mark 51 be vertically arranged equally spaced at collection water gaging cabinet 50 preceding tank wall on, for measure collection water gaging case The volume of water in body 50;Water reading 52 is to be labeled in collect body on water gaging cabinet 50, relative to water graduation mark 51 Product value.Collect 50 top of water gaging cabinet and is vacuum-treated 40 bottom-open position of cabinet in sealing glue connection;Drainpipe 53 is installed At the lower part of the right case wall of collection water gaging cabinet 50, draining tube control flap 54 is mounted on drainpipe 53, for that will collect The water discharge finished is measured in water gaging cabinet 50.
Water inlet pipe 1, water storage prepare case 2, penetration testing case 3, vacuum treatment chamber 4, collection water gaging case 5 between be sequentially connected It connects, is connected between vacuum pump 7 and vacuum treatment chamber 4 by connecting tube 6;Prepare case 2, penetration testing case 3, vacuum processing in water storage Case 4, collection water gaging case 5, connecting tube 6, the connection between vacuum pump 7 be it is closed, empty gas and water cannot be excessive from above-mentioned junction Out;And the top that water storage prepares case 2 is unlimited, the connection that water inlet pipe 1 and water storage prepare between case 2 is open;Water storage Prepare case 2, penetration testing case 3, vacuum treatment chamber 4, collect water gaging case 5 cabinet be all to be made by transparent tempered glass , convenient for water flow, the transport conditions of soil particle in being tested from external observation.
A kind of working principle of horizontal-hole blasting test device under Soft Ground Improved By Vacuum Preloading treatment conditions:
1. the certain hydraulic reclamation soil body of the sticky content reinforced needed for being filled in penetration testing case 3, a left side for penetration testing case 3 Simultaneously plastic draining board 33, earth-retaining steel wire 34 has been respectively set in right two sides;
2. refering to fig. 1, by water inlet pipe 1, water storage prepare case 2, penetration testing case 3, vacuum treatment chamber 4, collection water gaging case 5, Connecting tube 6, vacuum pump 7 are sequentially connected and connect,
3. the hold-down support 24 for preparing 2 bottom of case by adjusting water storage makes entire test device holding horizontal, device group Start to test after dress:
The bottom in water storage preparation case 2 is arranged in, by the overflow pipe control valve on overflow pipe 21 in water-stop sheet 25 by the first step Door 22 is opened, and the draining tube control flap 54 on drainpipe 53 is closed;
Second step opens the water inlet tube control flap 11 on water inlet pipe 1, is controlled by the overflow pipe adjusted on overflow pipe 21 The water level that the opening size of valve 22 prepares water storage in case 2 is maintained at level scale line 23;
Third step quickly extracts water storage out and prepares water-stop sheet 25 in case 2, opens simultaneously and adjust vacuum pump 7 and make vacuum Vacuum degree in treatment box 4 is maintained at certain test value;During this period, while water inlet tube control flap 11 and overflow pipe being adjusted The water level that the opening size of control valve 22 prepares water storage in case 2 remains at level scale line 23;
4th step reads the height of water level of head A measurement pipe 35 and head B measurement pipe 37 after seepage flow, which reaches, to be stablized, and Read the volume of water in collection water gaging case 5 at this time;
5th step calculates the horizontal-hole blasting under corresponding vacuum degree according to Darcy's law.

Claims (7)

1. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions, which is characterized in that described one kind Horizontal-hole blasting test device under Soft Ground Improved By Vacuum Preloading treatment conditions includes water inlet pipe (1), water storage preparation case (2), infiltration Test box (3), collects water gaging case (5) and vacuum pump (7) at vacuum treatment chamber (4);
It includes that water storage prepares cabinet (20) hold-down support (24) identical with 2 structures that the water storage, which prepares case (2),;
The penetration testing case (3) includes penetration testing cabinet (30);
The vacuum treatment chamber (4) includes to be vacuum-treated cabinet (40);
The collection water gaging case (5) includes collection water gaging cabinet (50);
One end of the water inlet pipe (1) prepares in case (2) from the top insertion water storage that water storage prepares cabinet (20), water inlet pipe (1) the other end is connect with water source;Two base angles that water storage prepares bottom on the right side of cabinet (20) are mounted on 2 structures placed vertically The top of identical hold-down support (24), water storage prepare cabinet (20) bottom hold-down support (24) identical with 2 structures it Between be vertically to be fixedly connected;Penetration testing case (3) is horizontally mounted at water storage by penetration testing cabinet (30) and prepares cabinet (20) left side, the right end and water storage of penetration testing cabinet (30) prepare the rectangular through-hole on cabinet (20) left side wall and seal company It connects, vacuum treatment chamber (4) passes through the right end of horizontal positioned vacuum processing cabinet (40) and the left end of penetration testing cabinet (30) It is tightly connected, vacuum treatment chamber (4) is by being vacuum-treated the left side bottom end of cabinet (40) and the collection water gaging cabinet placed vertically (50) end sealing connection, the bottom end of collection water gaging cabinet (50) are mounted on ground, and the output end of vacuum pump (7) passes through company The left tank wall sealed connection taken over (6) and be vacuum-treated cabinet (50).
2. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions described in accordance with the claim 1, It is characterized in that, it further includes having overflow pipe (21), spilling water tube control flap (22), level scale line that the water storage, which prepares case (2), (23), water-stop sheet (25) vertical strip (26) identical with 2 structures;
The spilling water closed at one end being mounted at level scale line (23) height of the horizontal positioned overflow pipe (21) On pipe through-hole, it is threadedly coupled between overflow pipe (21) and spilling water pipe through-hole, spilling water tube control flap (22) is mounted on overflow pipe (21) on;The identical vertical strip (26) of 2 root knot structures be vertically pasted onto water storage prepare cabinet (20) before and after tank wall inside, 2 The identical vertical strip (26) of root knot structure is parallel with the water storage preparation left box body wall of cabinet (20), and prepares cabinet with water storage (20) left box body wall inner distance is equal, i.e., chute width phase on front and back box body wall inside and that water-stop sheet (25) are equipped with The thickness for preparing the water-stop sheet (25) in case (2) Deng, chute width and water storage is equal;Water-stop sheet (25) is mounted on water storage and prepares case In slideway set by the inside of the front and back tank wall of body (20), it is slidably connected between water-stop sheet (25) and slideway, 2 structures are identical Hold-down support (24) be mounted on ground.
3. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions described in accordance with the claim 1, It being characterized in that, the water storage prepares the hollow shell part that cabinet (20) are the cuboids being made using tempered glass, The top that water storage prepares cabinet (20) is unlimited, and the middle that water storage prepares the right case wall of cabinet (20) is provided with installation and overflows The spilling water pipe through-hole of water pipe (21);The middle and lower part that water storage prepares the left box body wall of cabinet (20) is unlimited, that is, is provided with one Rectangular through-hole, the front and rear width that the length dimension and water storage of rectangular through-hole prepare cabinet (20) inner cavity is equal sized, and water storage prepares The front and rear width of cabinet (20) is equal with the front and rear width of penetration testing cabinet (30) in penetration testing case (3), rectangular through-hole Width dimensions and penetration testing case (3) in penetration testing cabinet (30) width dimensions up and down it is equal.
4. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions described in accordance with the claim 1, It is characterized in that, the penetration testing case (3) further includes having the section A (31), B-section (32), plastic draining board (33), earth-retaining steel Silk screen (34), head A measurement pipe (35) and head B measurement pipe (37);
The section A (31) is determined by the end to end red lines drawn along penetration testing cabinet (30) surrounding No. 1 rectangular section, perpendicular to the longitudinal asymmetric axis of penetration testing cabinet (30), the section A (31) are located at distance for No. 1 rectangular section At the position right end 5-10cm of penetration testing cabinet (30);
The B-section (32) is determined by the end to end blue lines drawn along penetration testing cabinet (30) surrounding No. 2 rectangular sections, No. 2 rectangular sections perpendicular to penetration testing cabinet (30) longitudinal asymmetric axis, No. 2 rectangular sections be located at away from At the left end position 5-10cm from penetration testing cabinet (30);
Plastic draining board (33) is mounted on the left end of penetration testing cabinet (30) using the identical fixing screws (33-1) of 4 structures It is interior, and parallel within the left side of B-section (32);Earth-retaining steel wire (34) is mounted on penetration testing by standing screw (34-1) In the right end of cabinet (30), and parallel within the right side of the section A (31);Head A measurement pipe (35) is using threaded connection installation On the A through-hole on penetration testing cabinet (30);Head B measurement pipe (37) is mounted on penetration testing cabinet using threaded connection (30) on the B through-hole on.
5. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions described in accordance with the claim 1, It being characterized in that, the penetration testing cabinet (30) is the hollow shell part for the cuboid being made using tempered glass, The left and right ends of penetration testing cabinet (30) are unlimited, and the interior chamber size and water storage of penetration testing cabinet (30) prepare cabinet (20) inner-cavity structure of the rectangle inner via hole of left box body wall middle and lower part setting is equal sized, the shape of penetration testing cabinet (30) Size is equal with the contour structure size of rectangle inner via hole that the left box body wall middle and lower part that water storage prepares cabinet (20) is arranged, and is seeping Test cabinet (30) is provided at the under casing body wall of the section A (31) and B-section (32) and is provided with installation head A measurement pipe (35) thoroughly With the A through-hole and B through-hole of installation head B measurement pipe (37).
6. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions described in accordance with the claim 1, It is characterized in that, the vacuum treatment chamber (4) further includes having pressure vacuum gauge (41);
The vacuum processing cabinet (40) is the hollow shell part for the cuboid being made using tempered glass, at vacuum Reason cabinet (40) right end is unlimited, and is vacuum-treated the outer dimension and interior chamber size and penetration testing cabinet of cabinet (40) right end (30) outer dimension of left end and inner cavity are equal sized, and the left end for being vacuum-treated the bottom of cabinet (40) is unlimited, that is, are arranged There are a rectangular through-hole, the collection water gaging cabinet in the outer dimension of rectangular through-hole and interior chamber size sum aggregate water gaging case (5) (50) outer dimension of upper end and inner cavity are equal sized;It is vacuum-treated on the left side tank wall of cabinet (40) and is provided with connection through-hole, Connectivity port (42) is mounted on connection through-hole;It is vacuum-treated on the top case wall of cabinet (40) and is provided with pressure vacuum gauge interface; Pressure vacuum gauge (41) is mounted on pressure vacuum gauge interface.
7. the horizontal-hole blasting test device under a kind of Soft Ground Improved By Vacuum Preloading treatment conditions described in accordance with the claim 1, It is characterized in that, the collection water gaging case (5) further includes having water graduation mark (51), drainpipe (53) and draining tube control flap (54);
The collection water gaging cabinet (50) is the hollow shell part for the cuboid being made using tempered glass, survey of catchmenting Measuring tank body is unlimited at the top of (50), that is, is set as a rectangular through-hole, the outer dimension of rectangular through-hole and interior chamber size and The outer dimension of the rectangular through-hole of vacuum processing cabinet (40) bottom left end in vacuum treatment chamber (4) and inner cavity are equal sized; The water graduation mark (51) is vertically arranged equally spaced on the preceding tank wall of collection water gaging cabinet (50), water reading (52) it is labeled on the collection water gaging cabinet (50) relative to water graduation mark (51), drainpipe (53) is mounted on collection water gaging case The lower part of the right case wall of body (50), draining tube control flap (54) are mounted on drainpipe (53).
CN201910495965.5A 2019-06-10 2019-06-10 A kind of horizontal-hole blasting test device under Soft Ground Improved By Vacuum Preloading treatment conditions Pending CN110093911A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112525797A (en) * 2020-11-27 2021-03-19 中国电建集团成都勘测设计研究院有限公司 Soil body horizontal permeability coefficient testing device
WO2021120366A1 (en) * 2019-12-19 2021-06-24 中南大学 Device for measuring horizontal permeability coefficient in indoor simulated vacuum preloading state

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021120366A1 (en) * 2019-12-19 2021-06-24 中南大学 Device for measuring horizontal permeability coefficient in indoor simulated vacuum preloading state
CN112525797A (en) * 2020-11-27 2021-03-19 中国电建集团成都勘测设计研究院有限公司 Soil body horizontal permeability coefficient testing device

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