CN206829165U - Caved in the composite foundation with sapping area for arid biogeographic zone earthen ruins - Google Patents

Abstract

For arid area earthen ruins caving zone and the composite foundation in sapping area, the composite foundation includes top and is modified sticky rice syrup ash soil layer from top to bottom（1）, bottom stone block building bed course（2）, wherein bottom stone block building bed course（2）Including block stone（21）And between stone filling space modification glutinous rice mortar（22）.The utility model blocks capillary water to enter sapping and the Disease Processing area root soil body that caves in, the bearing capacity for improving ground and the sedimentation and deformation and the weather resistance of ground that reduce ground by following many aspects.Institute obtained using material it is cheap, environment friendly and pollution-free and strong using material and ruins body compatible deformation performance, it is compatible good, preferably responded the theory of historical relic's protection.Construction technology is easy, solves the unstability that moisture and salt regime causes the earthen ruins wall caused by earthen ruins wall base shortcake alkali.

Description

Caved in the composite foundation with sapping area for arid biogeographic zone earthen ruins

Technical field

It the utility model is related to earthen ruins caving zone and the foundation consolidating technology in sapping area.

Background technology

The numerous earthen ruins of NW China arid area remnants, arid, short of rain, windy and high evaporation capacity it is severe Weather make these earthen ruins gradually experience by disease development to disappearance amount-qualitative change process totally, wherein sapping, crack, cave in It is earthen ruins safe preservation the most universal and typical disease, serious threat to ruins.These diseases development directly or What is connect is equal relevant with the sapping disease of earthen ruins wall bottom.Under conditions of rainfall and rapid evaporation, because capillary water rises Effect, directly result in wall base soil structures and intensity wreck, or cause wall base soil water salt under the conditions of drying and watering cycle indirectly The salt occurred of migrating is swollen and caused frost heave under freeze-thaw cycles, can cause wall root soil structures and intensity by broken It is bad --- root salt marsh is deteriorated, and is then lost under the abrasion of common sand-carrying wind and deflation, and quality is lost rapidly, from And wind erosion loss occurs and forms bottom cavity --- sapping area, the further expanding of cavity will induce ruins occur it is local broken It is bad --- caving zone, or even entirety are toppled.Therefore, composite foundation is the technical measures of earthen ruins body foundation stabilization. On the basis of meeting traditional handicraft, the historical relic's protection theory of raw material, composite foundation has blocked ground capillary water to rise, and avoids The development of basal sapping disease caused by the inducement that capillary water rises, and foundation bearing capacity is greatly improved, have Foundation settlement deformation under complement load action is built on effect control top, and weather resistance is remarkably reinforced.

The content of the invention

The purpose of this utility model blocks ground capillary moisture and salt regime, prevents the generous amount of caving zone from building complement sedimentation and deformation.

The utility model is the composite foundation to be caved in for arid biogeographic zone earthen ruins with sapping area, and the composite foundation is from top to bottom Be modified sticky rice syrup ash soil layer 1 including top, bottom stone block building bed course 2, wherein bottom stone block building bed course 2 include block stone 21 with And between stone filling space modification glutinous rice mortar 22.

The beneficial effects of the utility model are：The utility model by following many aspects block capillary water enter sapping and Disease Processing of the caving in area root soil body, the bearing capacity for improving ground and the sedimentation and deformation that reduces ground and ground it is weather-proof Performance.Institute obtains cheap, environment friendly and pollution-free and strong using material and ruins body compatible deformation performance, compatibility using material Property is good, has preferably responded the theory of historical relic's protection.Construction technology is easy, solves moisture and salt regime and causes earthen ruins wall base shortcake alkali The unstability of caused earthen ruins wall.Major advantage is：1. by using 10 ~ 20cm of particle diameter stone block building, and use Modified glutinous rice mortar effectively coheres block stone, and using compacted thickness 20cm modification glutinous rice that dirt, these measures are equal Beneficial has blocked capillary water in composite foundation to rise, and improves foundation bearing capacity；The levelling compacting of foundation trench bottom makes bottom land It is smooth, increase bottom land area soil body compactness and intensity；Ruins body pre-reinforcement area square staff level is extended into 20cm to outside wall For the design in sideline on the outside of composite foundation, beneficial increases foundation bearing area.2. composite foundation material therefor is by natural epidemic disaster in booth The influence such as degree, humidity, Frozen-thawed cycled is little, significantly improves the weather resistance of ground.By the modification of the sticky rice syrup mixing cured The infiltration coefficient of glutinous rice mortar and modified sticky rice syrup dirt is decreased obviously, and is enhanced its resistance to water-destructible property, cohesive force, is resisted without lateral spacing Compressive Strength.3. modified sticky rice syrup dirt, block stone and modified glutinous rice mortar raw material sources are extensive, sticky rice syrup making more economy is just It is prompt.The soil body that foundation trench excavates is but also as ruins caving zone and the raw material of sapping area building soil, whole work progress, without slag The outer of soil abandons link, while turn avoid environmental pollution, has extremely strong economy and the feature of environmental protection.4. stone block building layer is more easy to simultaneous It is dissolved in the ruins wall base position soil body；The modification sticky rice syrup ash soil layer of compacting is more compatible with the caving zone or sapping area being overlying on thereon Building soil layer.It is strong using material and ruins body compatible deformation, compatibility, preferably respond the theory of historical relic's protection.5. make It is the traditional handicrafts such as foundation trench excavation, stone block building, slurries mix, grey rammed earth with construction technology, it is simple and quick.This practicality The demand of physics, mechanics and water reason needed for the new wall base reinforcing for fully meeting ruins caving zone and sapping area etc., it is simultaneous Appearance works well, and meets the basic demand that traditional handicraft is repaired in historical relic's protection, is that the scientific of traditional handicraft is able to soil in ancient times The reproduction of architectural engineering practice, it provides technical support to save the ancient times earth construction site that large area is caved in.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model composite foundation, Fig. 2 be the utility model be used for earthen ruins caving zone and The structural representation of the composite foundation in sapping area, Fig. 3 are that modified sticky rice syrup ash soil layer horizontal direction one rams nest position view, Fig. 4 is that modified sticky rice syrup ash soil layer horizontal direction two rams nest position view, and reference and correspondence are entitled：Modified glutinous rice Starch grey soil layer 1, modified sticky rice syrup dirt 11, stone block building layer 2, block stone 21, ruins body 3, original basis layer ground 4, ruins sheet Body pre-reinforcement area metope 5, ruins body pre-reinforcement area square staff 6, sideline 7 on the outside of composite foundation, ruins body pre-reinforcement area faces Empty face 8, composite foundation inner side sideline 9, caving zone 10, sapping area 11.

Embodiment

The utility model is the composite foundation for arid area earthen ruins caving zone and sapping area, as shown in Figure 1 and Figure 2, It is of the present utility model to be modified sticky rice syrup dirt for arid area earthen ruins caving zone and the composite foundation in sapping area, including top Layer 1, wherein bottom stone block building bed course 2, bottom stone block building bed course 2 include the modification in space between block stone 21 and stone filling Glutinous rice mortar 22.

As shown in Figure 1 and Figure 2, on the outside of composite foundation sideline 7 be located at it is horizontal to wall along ruins body pre-reinforcement area square staff 6 At outer extension 20cm.

As shown in Figure 1 and Figure 2, the compacted thickness that top is modified sticky rice syrup ash soil layer 1 is 20cm.

As shown in Figure 1 and Figure 2, the thickness of bottom stone block building bed course 2 is 400 ~ 600mm and the particle diameter of block stone 21 used is 100 ~200mm。

Work progress of the present utility model, its step are：

（1）Prepare sticky rice syrup：By glutinous rice flour and water in mass ratio 3:97 ratio is mixed, stirs evenly, boiled, and is continued after boiling Heating more than 4 hours, makes sticky rice syrup fully cure, during which uninterruptedly adds water, keep the concentration of sticky rice syrup constant, last slurries temperature Degree is down to room temperature, adds a little preservative, lays in；

（2）Prepare modified sticky rice syrup dirt 11：

A. grey earth material is selected：Lime selects more than III grade of calcareous quick lime, is fully cleared up before use；From with Earth material similar in former ruins soil, earth material salt content are less than 0.5%；And lime and earth material are crossed to diameter 5mm sieve, by volume 3:7 Mix is uniform, is prepared into dirt；

B. grey earth material and the uniform mix of sticky rice syrup will be prepared in a, does live compaction test, obtains optimum moisture content and maximum Dry density；

C. optimum moisture content is obtained according to the modified compaction test of sticky rice syrup dirt 11, makes the modification sticky rice syrup ash used in construction The moisture content control errors of soil 11 load within ± 2% scope of optimum moisture content, and by the modification sticky rice syrup dirt 11 of preparation Plastics water-keeping bag, direct sunlight is avoided, conserved 24 hours；

（3）Prepare modified glutinous rice mortar 22：From more than III grade (contain III grade) quick lime and flyash, and by lime and powder Coal ash crosses diameter 5mm sieve, in mass ratio 1:1 mix is uniform, is then that 0.35 ~ 0.45 addition sticky rice syrup mix is equal by the ratio of mud It is even；

（4）Gib：The method being combined using hard and soft, effective support top ruins body caving zone 10 or sapping area 11 The soil body, prevent the 3 unstable deformation of ruins body caused by vibration in work progress；

（5）Foundation trench excavates：The position of sideline 7 on the outside of composite foundation is determined with measuring instrument according to engineering design；Clear up ruins The void product soil of the root of body 3 or the soil that caves in, until cleaning out original basis layer ground 4, cleaning area is sideline 7 on the outside of composite foundation The horizontal scope for extending 40cm to wall outer side；Sideline 7 cuts out foundation trench contour line on the outside of along composite foundation, and hand excavation is to reserved Projected depth；Cell wall is repaired neatly, pats into smooth surface.If cell wall soil property is more dry, after appropriate to cell wall can spraying spray water wetting Pat into smooth surface；By bottom land levelling, selected to be adapted to utensil to tamp substrate according to field condition；

（6）Formwork：Using ruins body pre-reinforcement area free face 8 as template, other three faces formworks.Transplanted inside foundation trench Pin, pin buried depth 300mm, it is ensured that building hammer ram can vertically exert a force, and will at top modification sticky rice syrup ash soil layer 1 ramming in advance Template placement is firm；

（7）Stone block building：One layer of block stone 21 is built by laying bricks or stones by substrate, then filled modified glutinous rice mortar 22 empty with block stone 21 Gap；Repeat masonry block stone 21 and fill modified glutinous rice mortar 22 in block 21 space of stone the step of, and sequentially into designed elevation；

（8）Building is modified sticky rice syrup dirt：According to compacted thickness 200mm, modified sticky rice syrup dirt 11 is spread by default pine Thickness, is paved on block stone, and non-firm offer of first receiving is stepped on, then using the modified sticky rice syrup dirt 11 of the empty paving of sharp bottom hammer ram compacting, it is ensured that change The global density and quality of property sticky rice syrup ash soil layer 22, during building, in a row tamped in order with sharp bottom hammer ram, be typically head Rammer rushes extra large nest, two building silver ingots and remaining rammer punching and the combination building such as chops ditch, makes even（As shown in Figure 4）, meet compactness K >=0.95；

（9）Form removal：The modified building of sticky rice syrup ash soil layer 1 is completed, and mould therefor is removed, the turbinate eye that pin is extracted is filled out Enter modified sticky rice syrup dirt 11, and tamp；

（10）Maintenance：After the completion of Composite foundation construction, sticky rice syrup ash soil layer 11 is modified using covered rearing with plastic film upper strata, supported Shield is not less than 7 days；

（11）Repeat above step, next section of composite foundation for constructing adjacent.

Claims (4)

1. the composite foundation for arid area earthen ruins caving zone and sapping area, it is characterised in that the composite foundation from upper and Include top down and be modified sticky rice syrup ash soil layer（1）, bottom stone block building bed course（2）, wherein bottom stone block building bed course（2）Including Block stone（21）And between stone filling space modification glutinous rice mortar（22）.

2. according to claim 1 exist for arid area earthen ruins caving zone and the composite foundation in sapping area, its feature In sideline on the outside of composite foundation（7）Positioned at along ruins body pre-reinforcement area square staff（6）Level extends at 20cm to outside wall.

3. according to claim 1 exist for arid area earthen ruins caving zone and the composite foundation in sapping area, its feature In the top is modified sticky rice syrup ash soil layer（1）Compacted thickness be 20cm.

4. according to claim 1 exist for arid area earthen ruins caving zone and the composite foundation in sapping area, its feature In bottom stone block building bed course（2）Thickness is 400 ~ 600mm and block stone used（21）Particle diameter is 100 ~ 200mm.