1、自流四周喷射灌浆处理采用高压旋喷灌浆进行岩溶地段的施工。高压旋喷灌浆施工技术的实施，需要利用一定的机械设备将灌浆管送至到土层中，这个位置要进行准确的把握。到达指定位置后，利用高压装置将浆液向四周喷射，浆液喷射到土层中以后会有流动，由于这种高压作用，会对土层造成一定的破坏力，从而使土层可以与浆液有效的融合在一起。采用高压灌浆进行岩溶地段的施工。处理岩溶的时候通常运用不冲洗高压水泥灌浆，也就是为了达到使填充物挤压密实的目的，采用比较高的灌浆压力进行处理，借此提高其稳定性与抗渗性。除此之外，高压灌浆还具有劈裂作用，能够让水泥以条带状向土体中穿插，并形成网格状的包裹，大大提高了坝体的稳定性。Using
2、 high-pressure rotating spray irrigation pulp to construction in karst area. The implementation of the construction technology of high-pressure rotating spray irrigation pulp, need to use a certain mechanical equipment grouting tube sent them into the soil, to the position to accurately grasp. Arriv
3、ed at the specified location, using high pressure device to grout injection, round grout injection will flow in the soil, because of the high pressure effect, can cause http:/ http:/ http:/ http:/certain damage to the soil, so that the soil can with serous effective fusion. USES the high pressure gr
4、outing construction in karst area. Dealing with karst usually use dont flush the high-pressure cement grouting, which is in order to achieve the purpose of make filler extrusion dense, USES the high pressure grouting for processing, to improve its stability and permeability resistance. Besides, high
5、-pressure grouting have splitting effect, also can let the article to the ribbon to the soil with cement, grid and formation of packages, greatly improving the stability of the dam body. 基础灌浆施工技术在浅层含泥岩溶中的运用。浅层含泥岩溶主要表现为大规模的岩溶露出在周周或者埋藏较浅，这时候首先要把填充物挖出，而后将水泥进行回填，最后进行灌浆的处理。在喷浆的过程中，输送浆液的钻杆慢慢的向上提升，同时不停的旋转，
6、这样的话，在以钻杆为中心的区域就会形成一个均匀的圆柱体，使地基的稳固性增加。In shallow mud karst foundation grouting construction technology application. Shallow mud karst mainly for large-scale karst showing in a week or buried shallow, dig out this time filling in the first place, and then will be cement backfill, finally carries on t
7、he grouting treatment. In the process of spray, conveying slurry pipe slowly upward, constantly rotating at the same time, in this case, area in the center of the drill pipe to form a homogeneous cylinder and increase the stability of the foundation. 通常来说，在水利工程中的岩缝灌浆一般会在 1-3h内结束，单位耗灰量也会小于或者等于 120-22
8、0kg/m。这时候，只要按照正常的施工工序就可以。然而对于有时候会出现的岩缝大吸浆量导致灌浆难以结束的情况，需要采取相关措施来解决。出现这种情况的主要原因就是特殊的地层结构条件会导致水泥浆从附近的地表溢出或者沿着某一个固定的通道逐渐流失。采用限流措施。限制注入率不大于 10-15l/min，以减小 浆液在裂隙里的流动速度，促使浆液尽快沉积。待注入率明显减小后，将压力升高，使注入率基本保持在 10-15l/min 的水平，直至达到灌浆结束标准后结束灌浆。Generally, bolt grouting in hydraulic engineering in general will end wi
9、thin 1 to 3 h, unit consumption of ash quantity will be less than or equal to 120-220 kg/m. At this http:/ http:/ http:/ http:/time, as long as according to the normal construction process. But for sometimes there will be a big plasma uptake cause grouting bolt is hard to the end of the case, need t
10、o take relevant measures to deal with. Appear this kind of circumstance is the main reason of the special conditions can lead to stratigraphic structure slurry overflows from near the surface or along a fixed path loss. Using current limiting measures. Limit injection rate is not greater than 10-15
11、l/min, to reduce the slurry flow in fracture, prompting serous deposit as soon as possible. When the injection rate is significantly reduced, will pressure, keep the basic injection rate in 10 to 15 l/min, until after ending grouting standard end grouting is reached. 通俗来说，就是用比较粘稠的水泥冲灌砾石与粗砂，在砾石的冲灌过程中
12、要注意砾石的使用直径应该是从小到大的。假如在此之后仍然没有很好地的收效，则可以用比较粘稠的水泥冲灌级配料。这时候的级配料应该包括：砂石、砾石以及土等具有粗细不均颗粒的混合料，可以形成自然的反过滤层。泰山奇石级配料灌入的数量应当灵活掌握，既可以是 200kg，也可以 1000kg。充填粒料的目的，主要是希望用某一级砾石在窄缝处形成“ 架桥” ，迅速将缝隙在中途堵住，以便于形成反滤层，最后将通道堵死。Popular, is to use more viscous cement filling and gravel and coarse sand and gravel in the rush to
13、fill in the process should pay attention to the use of gravel diameter should be growing up. If after that there is still no good results, you can use more viscous cement filling grade ingredients. The level of ingredients should include: sand, gravel and soil mixture with uneven thickness of grain,
14、 can form natural filtering layer. Grade ingredients into number should be flexible, can be 200 kg, 1000 kg. The purpose of filling aggregate, mainly want to use a certain level of gravel in the narrow gap “bridge“ formation, quickly will crack in the middle block, in order to form the filter layer,
15、 finally will channel blocking. 采用降低压力甚至是自流的方式来进行灌浆处理，等待浆体凝固并且不能流动之后在逐步恢复灌浆压力，按照正常工序进行处理。利用这种灌浆技术，通过压力的作用，可以将模袋中的水分挤压出去，而砂石等物质会留在模袋中，这样的话水灰比就会有所降低，并且在模袋的束缚下，砂石不会流动，凝结的时间变短， 吊车提高了固结的强度。由于模袋具有很好的拉伸性能并且耐磨性能好，所以能够http:/ http:/ http:/ http:/适应各种不同的变形，在溶洞的填塞上非常有利。根据实际情况间歇，达到一定的时间要求就要停止作业，在规定的时间过后再次进行灌浆，这个
16、时间间隔要根据具体的实际情况来制定，但是通常情况下是在二到八小时之内。Reduce pressure grouting treatment, and even their way waiting for slurry solidification and cannot flow in recovering after grouting pressure, according to the normal procedure for processing. Take advantage of the grouting technology, through the pressure effect,
17、 can will die extrusion moisture out of the bag, and materials such as sand and gravel will stay in bag, so that the water cement ratio will decrease, and under the constraints of mould bags, sand will not flow, shorter setting time, increasing the intensity of the consolidation. Because the mold ba
18、g has good tensile properties and wear-resisting performance is good, so can adapt to a variety of different deformation, on the filling karst cave is very favorable. Intervals according to actual condition, to fulfill the requirements of a certain amount of time will stop operation, after the prescribed time grouting again, this time interval according to the specific situation to develop, but is normally within two to eight hours.
