CN2128669Y

CN2128669Y - Single-chain type static two purpose instrument for touch-detecting and taking soil

Info

Publication number: CN2128669Y
Application number: CN 92214939
Authority: CN
Inventors: 王惠昌; 朱金发; 王斌; 周长庚
Original assignee: Sichuan Institute of Building Research
Current assignee: Sichuan Institute of Building Research
Priority date: 1992-07-16
Filing date: 1992-07-16
Publication date: 1993-03-24
Anticipated expiration: 2002-07-16

Abstract

The utility model provides a single-chain type two-purpose instrument for static touch-detecting and taking soil, comprising a bottom frame, an anchor block, a removable machine frame rotationally connected with the bottom frame, a single-chain transmission system mounted on the machine frame, a probe rod fixed to a chain via a probe rod clamp, and a soil taker detachably matching with the probe rod. The utility model can carry out static penetration tests and can take disturbed samples, with the advantages of two purposes, large pressing in and pulling up capacity of the probe rod, light weight, and easy and safety use. Soil layer stratification data taken by the utility model are more accurate and reliable.

Description

Single-chain type static two purpose instrument for touch-detecting and taking soil

The utility model relates to a kind of cone penetration test instrument, relates to particularly that a kind of strand formula static sounding-double-purpose instrument fetches earth.

Cone penetration test can reflect the soil property variation characteristic rapidly, continuously, is a kind of important prospecting and in-situ testing method in the engineering geologic investigation.For adapting to various geological conditions and different instructions for uses, developed polytype cone penetration test equipment such as heavy, medium-sized and light-duty, wherein the application of light equipment has a large capacity and a wide range the most.Light equipment does not need civil power generally with manual operation, and is simple in structure light and handy, for have inconvenient traffic and areas without electricity particularly convenient.Present " the CLD-1 type four-bladed vane test-static sounding double-purpose instrument " that uses, its structure comprises base plate, earth anchor, frame, double-chain transmission system, feeler lever.Be fixedly to be pressed into or to promote feeler lever between feeler lever and chain by the chain sheet pivot pin that extends.This cantilevered pivot pin fractures easily, and actual penetrating power does not often reach 2 tons, and because of the chain elastic stretching is big, causes that easily the rocking handle bounce-back hurts sb.'s feelings.Can obtain continuous mechanical strength section though carry out cone penetration test, but because dissimilar soil layer engineering propertiess when resistance is identical is different, also need to take out disturbed soil, the classification of soil layer, composition, inclusion etc. are differentiated, need two complete equipments in conjunction with other drilling methods.Because general drilling equipment is heavy, operating efficiency is lower, and labour intensity is bigger, thereby quick, the inexpensive advantage of cone penetration test just can not be given full play of.Go up single-point type soil sampler of configuration in order to address this problem at " CLD-1 type four-bladed vane test-static sounding double-purpose instrument ", after the cone penetration test, desired depth hooks up soil sample from the hole that stays.But soil sample is little, only gets a soil sample at every turn, and rises with hand-lifting, and for soil property variation stratum greatly, and the boundary line between top fill stratum and the old soil layer is difficult for accurately determining.

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of by the strand transmission, and feeler lever fixedly is pressed into by feeler lever anchor clamps and chain or rises and pulls out, and have soil sampler static sounding-double-purpose instrument fetches earth.

The utility model strand formula static sounding-double-purpose instrument that fetches earth comprises underframe, earth anchor, be rotationally connected with underframe and removable frame, be arranged on single chain transmission system on the frame, by the feeler lever anchor clamps make feeler lever that itself and chain fix and with the removable soil sampler that cooperates of feeler lever.Wherein earth anchor is used for fixing underframe, and frame is fixed on the underframe by bearing pin and hold-down nut, unscrews hold-down nut, frame can be rotated around bearing pin, can uprightly carry out cone penetration test, can drop to the ground again and carry out the soil property sampling, can also dismantle is two parts, is convenient to the vanning transportation.Transmission system is made up of speed change gear, rocking handle and chain etc., is the strand transmission, promptly adopts a chain drive to carry out being pressed into of feeler lever and rise pulling out.For preventing that the rocking handle bounce-back is hurted sb.'s feelings in process of press in, in this transmission system, be provided with and prevent the rocking handle rebounding device, use safer.Feeler lever comprises the probe of feeler lever end and the cable in the feeler lever, and when carrying out cone penetration test, probe writes down the penetration resistance on stratum on instrument or digital the demonstration automatically by cable.

Soil sampler in the utility model strand formula static sounding-double-purpose instrument that fetches earth has two types, a kind of is spiral continuous soil sampler, another kind by the bar that fetches earth, be fixed on the rotating multiple spot discontinuous soil sampler that fetches earth pipe and be fixed on the bar that fetches earth and form with the corresponding spring leaf of pipe that fetches earth on the bar that fetches earth.Once can take a plurality of soil samples, spacing is generally 20 centimetres.

The advantage of the utility model strand formula static sounding-double-purpose instrument that fetches earth is both to carry out cone penetration test, can carry out again after having tested continuously or multiple spot interruption soil sampling.Not only save heavy drilling equipment, alleviated labour intensity, and improved work efficiency, dual-use.Use the feeler lever anchor clamps to fix feeler lever and chain, feeler lever is pressed into and works the ability of pulling out to increase, generally be not less than 2 tons.Increase in the transmission system and prevent from the rocking handle rebounding device to use safer.Use the utility model gained soil layer layering data more accurate reliable.

Describe the utility model embodiment in detail below in conjunction with accompanying drawing.

Fig. 1: the utility model structural representation

Fig. 2: soil sampler uses schematic diagram

Fig. 3: multiple spot discontinuous soil sampler schematic diagram

Fig. 4: feeler lever clamp structure schematic diagram

Fig. 5: transmission system schematic diagram

The utility model strand formula static sounding one double-purpose instrument that fetches earth comprises underframe 1, earth anchor 2, be fixed on frame 5 on the underframe 1 by hold-down nut 3 and bearing pin 4, be arranged on the frame 5 by speed change gear 6, band prevents the transmission system that the rocking handle 7 of rebounding device 21 and chain 8 are formed, the feeler lever 10 that is fixed by feeler lever anchor clamps 9 and chain 8, and with the feeler lever 10 removable spiral continuous soil samplers 11 that cooperate with by the bar 12 that fetches earth, be fixed on the rotating pipe 13 that fetches earth on the soil sampling bar 12, the multiple spot discontinuous soil sampler 20 that is fixed on the bar 12 that fetches earth and forms with the pipe 13 corresponding spring leafs 14 that fetch earth.Wherein feeler lever anchor clamps 9 comprise the handwheel 16 of being with fixture block 15, the card fork nut 17 that matches with handwheel 16, pitch 19 by bearing pin 18 with the chain card that card fork nut 17 is connected with fixture block 15.

When carrying out cone penetration test, by earth anchor 2 underframe 1 is fixed on the ground, feeler lever anchor clamps 9 chucking feeler lever 10 and chains 8 shake rocking handle 7, and drive feeler lever 10 was pressed into or rises and pull out when chain 8 moved up and down.After 1 meter of every injection, unclamp feeler lever anchor clamps 9, feeler lever anchor clamps 9 are moved to new position, top from the bottom, rechuck feeler lever anchor clamps 9 enter following 1 meter injection, up to desired depth.After cone penetration test is intact, frame 5 is droped to the ground, fixing

soil sampler

11 or 20 on feeler lever 10 is in the penetration hole.Take soil sample, again that frame 5 is upright, so that utilize frame 5 to pull up feeler lever 10, take out soil sample.

Claims

It is 1, a kind of that strand formula static sounding-double-purpose instrument fetches earth, it is characterized in that comprising underframe, earth anchor, be rotationally connected and removable frame with underframe, be arranged on single chain transmission system on the frame, by the feeler lever anchor clamps make feeler lever that itself and chain fix and with the removable soil sampler that cooperates of feeler lever.
2, the strand formula static sounding as claimed in claim 1-double-purpose instrument that fetches earth is characterized in that card fork nut that the feeler lever anchor clamps comprise the handwheel of being with fixture block, match with handwheel, is pitched with the chain card that card fork nut is connected with fixture block by bearing pin.
3, the strand formula static sounding as claimed in claim 1-double-purpose instrument that fetches earth is characterized in that soil sampler is spiral continuous soil sampler.
It is 4, as claimed in claim 1 that strand formula static sounding-double-purpose instrument fetches earth, it is characterized in that soil sampler is by the bar that fetches earth, is fixed on the rotating pipe that fetches earth on the bar that fetches earth, and the multiple spot discontinuous soil sampler that is fixed on the bar that fetches earth and forms with the corresponding spring leaf of pipe that fetches earth.